Patent application number | Description | Published |
20090265235 | Apparatus and method for providing cell-based advertisement broadcast service in broadband wireless communication system - Provided is an apparatus and method for providing a cell-based advertisement broadcast service in a broadband wireless communication system. In an advertisement broadcast service of a service interface server in the broadband wireless communication system, an advertisement content transmission request message containing at least one of information about advertisement broadcast content, information about an advertisement broadcast zone, and information about an advertisement broadcast channel is received from a service provider. The received advertisement content transmission request message is transmitted to an MCBCS controller. | 10-22-2009 |
20100190498 | Method and system for managing closed subscriber group of a femto base station in WiMAX system - A femto base station of a WiMAX system can manage a list of closed subscriber groups (CSGs). A CSG indicator is broadcast. The femto base station receives a registration request message from a mobile station having received the CSG indicator and adds the mobile station to a CSG registration list. The femto base station searches for the mobile station from the CSG registration list if an attach request message is received; and forwards the attach request message to an access service network (ASN) gateway if the mobile station is in the CSG registration list. The femto base station establishes a link message with the mobile station if an attach acceptance message corresponding to the attach request message from the ASN-gateway. | 07-29-2010 |
20100195576 | SYSTEM AND METHOD FOR PROVIDING MESSAGE PUSH SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method and a system for providing a push service in a wireless communication system adopting an Orthogonal Frequency Division Multiplexing (OFDM) scheme or an Orthogonal Frequency Division Multiple Access (OFDMA) scheme are provided. The method includes when receiving a message from another network or another messaging server, transmitting, at a messaging server, a push service request message to a push server; when a Mobile Station (MS) of which the push service is requested using the push service request message of the messaging server, operates in an awake mode, transmitting, at the push server, a first push deliver message comprising a message designated for the MS, to a Base Station (BS), and when receiving the first push deliver message, transmitting, at the BS, a second push deliver message based on a Media Access Control (MAC) layer comprising the message designated for the MS, to the MS. | 08-05-2010 |
20110069659 | METHOD AND APPARATUS FOR PROVIDING LOCAL BREAKOUT SERVICE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for providing a Local BreakOut (LBO) service in a wireless communication system are provided. In the method for providing an LBO service in a wireless communication system, after an access authentication procedure between an authentication server and a terminal, a femto gateway receives a subscriber profile including LBO service flow information from the authentication server to provide the LBO service flow information to a femto base station through initial service flow setting between the terminal and the femto gateway. The femto base station sets an LBO service flow through a Dynamic Service Addition (DSA) procedure. The terminal performs a Dynamic Host Configuration Protocol (DHCP) procedure through the LBO service flow setting, and obtains an IP address for LBO based on the DHCP procedure. | 03-24-2011 |
20110069681 | METHOD AND APPARATUS FOR SUPPORTING SHORT MESSAGING SERVICE OF MOBILE STATION DURING IDLE MODE IN WIRELESS COMMUNICATION SYSTEM - A method and apparatus for supporting a Short Message Service (SMS) of a Mobile Station (MS) during an idle mode in a wireless communication system are provided. An MS operation method for supporting an SMS in a wireless communication system includes receiving an SMS message from a Base Station (BS) through a ranging message in an idle mode, upon receiving the SMS message from the BS, starting a timer, while the timer operates, waiting UpLink (UL) resource allocation for transmission of an ACKnowledge (ACK) message about the SMS message, and upon being allocated a UL resource for the ACK message transmission, and transmitting the ACK message using the UL resource. | 03-24-2011 |
20110107087 | APPARATUS AND METHOD FOR REFRESHING MASTER SESSION KEY IN WIRELESS COMMUNICATION SYSTEM - A Master Session Key (MSK) refresh in a wireless communication system is provided. A MSK refreshing method MSK includes when receiving a first Media Access Control (MAC) message including MSK refresh indication information from a Base Station (BS), generating, at a Mobile Station (MS), an Extended Master Session Key (EMSK)_Hash by applying a hash function to an EMSK and sending a second MAC message including the EMSK_Hash, sending, at the BS, a context request message including the EMSK_Hash to an Access Service Network GateWay (ASN-GW), sending, at the ASN-GW, an authentication request message including the EMSK_Hash to an authentication server, when receiving the authentication request message including the EMSK_Hash, confirming, at the authentication server, the same EMSK as the MS based on the EMSK_Hash, determining an MSK | 05-05-2011 |
20110310801 | APPARATUS AND METHOD FOR PERFORMING LOCAL ROUTING IN A MOBILE COMMUNICATION SYSTEM - An apparatus and method for performing local routing in a mobile communication system. In accordance with the method, if a flow between a first Mobile Station (MS) and a second MS is a local routing candidate, an Access Serving Network GateWay (ASN-GW) receives an AAA request message including information indicating start of local routing from an Authorization, Authentication and Accounting (AAA) server, and performs the local routing between the first MS and the second MS after transmitting to the AAA server an AAA response message including information indicating that the local routing will start in response to the AAA request message. The local routing is based on consent among entities involved in the local routing. | 12-22-2011 |
20120002583 | METHOD AND APPARATUS FOR GENERATING GROUP SERVICE FLOW IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus generate a group service flow in a mobile communication system. An Advanced Mobile Station (AMS) in a mobile communication system transmits an AAI_REG-REQ message, which includes a group service request indicator indicating that it is required to generate the group service flow, to an ABS. The AMS receives an AAI REG-RSP message and an AAI_DSA-REQ message, which includes at least one of a group service flow parameter for the group service flow, a multicasting Station Identifier (STID), a multicasting flow ID, a group service flow ID, and information indicating a use of the group service flow, from the ABS. The AMS then generates the group service flow in cooperation with the ABS in accordance with the AAI_DSA-REQ message. | 01-05-2012 |
20120026882 | APPARATUS AND METHOD FOR SUPPORTING AGPS TRAFFIC CLASS IN MOBILE COMMUNICATION SYSTEM - An apparatus and a method of a mobile communication system is provided. In a method for changing a Quality of Service (QoS) of a base station in a mobile communication system, when a QoS parameter change is detected from a packet received from a terminal, the changed QoS parameter is determined. A Generic Route Encapsulation (GRE) packet to which the changed QoS parameter has been applied is transmitted to an upper node. When a Dynamic Service Change (DSC) performance with the terminal is requested by the upper node, the DSC is performed with the terminal. The changed QoS parameter is applied. | 02-02-2012 |
20120083937 | METHOD AND SYSTEM FOR PROVISIONING ENERGY PROFILE IN HOME AREA NETWORK - A method for configuring a Home Energy Management System (HEMS) in a Home Area Network (HAN) is provided. The method includes registering the HEMS to a smart meter, and managing an energy profile of an HAN device including the smart meter connected to the HAN. Accordingly, a Demand Response (DR) may not normally operate between devices even if energy profile differs from one device to another. | 04-05-2012 |
20120202518 | APPARATUS AND METHOD FOR CONTROLLING WHETHER TO PROVIDE LOCATION INFORMATION IN BROADBAND WIRELESS ACCESS SYSTEM - A method and an apparatus for an operation of a Mobile Station (MS) in a wireless access system are provided. The method includes receiving a request to report measurement data required for location determination, determining whether it is in a state in which providing of location information is rejected, and if it is determined that it is in the state in which providing of location information is rejected, transmitting a message for reporting that providing of the location information is rejected. | 08-09-2012 |
20140005493 | APPARATUS AND METHOD FOR DETECTING MISALIGNMENT BETWEEN IMPLANTABLE BIO SENSOR AND BIO-SIGNAL RECEIVING MODULE | 01-02-2014 |
20140110561 | METHOD AND APPARATUS FOR CONTROLLING AMOUNT OF LIGHT IN VISIBLE LIGHT COMMUNICATION SYSTEM - A method and an apparatus for controlling an amount of light in a visible light communication system are provided. In the visible light communication system, a terminal measures an amount of light for a light signal received from a sensor, determines whether the measured amount of light is less than a threshold value, increases an amount of light for a light source signal to transmit to the sensor when the measured amount of light is less than the threshold value, and transmits, to the sensor, a light source signal according to the increased amount of light. | 04-24-2014 |
20140118123 | METHOD AND APPARATUS FOR CONTROLLING HOME DEVICE BASED ON SERVICE LOGIC IN HOME NETWORK SYSTEM - A method of controlling at least one home device in a home network system through a home gateway is provided. The method includes transmitting information about at least one home device installed in a home to a server, receiving extracted scenario information configured with combinations of services that are providable through the at least one home device from the server, and transmitting the extracted scenario information to a user terminal, receiving a control signal corresponding to a scenario selected by the user terminal from the user terminal, and if an event signal is detected from the at least one home device corresponding to the selected scenario, controlling the at least one home device according to the selected scenario. | 05-01-2014 |
20140165160 | METHOD AND APPARATUS FOR CONTROLLING ACCESS BETWEEN HOME DEVICE AND EXTERNAL SERVER IN HOME NETWORK SYSTEM - A method for controlling access between home devices and servers in a home network system is provided. The method includes determining whether first access of the home devices to each of the servers and second access of the servers to each of the home devices is restricted, and controlling the first access and second access based on respective access rights established according to the determination. | 06-12-2014 |
20140200031 | APPARATUS AND METHOD FOR CONTROLLING WHETHER TO PROVIDE LOCATION INFORMATION IN BROADBAND WIRELESS ACCESS SYSTEM - A method and an apparatus for operating a server in a wireless access system are provided. The method includes receiving a request for location information of a mobile station, transmitting a measurement request message for requesting measurement data used for location determination of the mobile station, receiving a measurement response message comprising at least one of a rejection code and a rejection duration, and transmitting a notification that the request for the location information is rejected. | 07-17-2014 |
20140364175 | METHOD AND APPARATUS FOR CONTROLLING POWER OF TERMINAL - A terminal communicating with at least one wireless communication device determines whether a first data is received from the at least one wireless communication device in a first mode, in which power is supplied to a display portion, determines whether a second data is received during a first time period from the time when the first data is received, and switches to a second mode in which the power supplied to the display portion is blocked according to whether the second data is received. | 12-11-2014 |
20140379368 | METHOD AND APPARATUS FOR MANAGING PERSONAL HEALTH - A method and an apparatus for managing personal health are provided. A gateway capable of communicating with a health device and a non-health device sets up a communication link with a communication device according to a first communication protocol, and determines whether the health device. When the communication device is determined as a health device, the gateway executes a health security algorithm which provides a higher level of security than a security of a security algorithm applied to the first communication protocol, and communicates with the health device by using the health security algorithm. | 12-25-2014 |
20150067080 | METHOD AND APPARATUS FOR REMOTELY CONTROLLING HOME DEVICE IN HOME NETWORK SYSTEM - A method for remotely controlling a home device in a mobile terminal is provided. The method includes receiving a chat message input to the mobile terminal for controlling at least one home device through an instant messenger application installed in the mobile terminal, and sending the chat message to a messenger server. The sent chat message is converted into a control command, which is sent to the home device. | 03-05-2015 |
20150087278 | METHOD AND APPARATUS FOR CONTROLLING DEVICES FOR SMART HOME SERVICE - A method and apparatus for controlling devices for a smart home service are provided. The method includes grouping devices to receive at least one command simultaneously from among devices registered to the smart home service into a group for one mode, generating mode configuration information for each mode including grouped devices for the mode and at least one command for the mode, transmitting the mode configuration information for each mode to the registered devices, selecting one of each mode for which the mode configuration information has been generated, and transmitting a mode activation request for activating the selected mode to the registered devices. | 03-26-2015 |
20150089624 | SECURITY MANAGEMENT METHOD AND APPARATUS IN A HOME NETWORK SYSTEM - To solve the problems that may occur due to the leakage of user account information, the present disclosure may manage the security using the device token that is used independently of that of the server, that is generated by a home device, and that can be used for device authentication when a smart phone controls home appliances. With the use of the device token, the present disclosure may solve the problems that the status information of home appliances is exposed by another person or the home appliances are controlled by another person, even though the user account information is leaked. | 03-26-2015 |
Patent application number | Description | Published |
20090288622 | CONTINUOUS VARIABLE VALVE LIFT DEVICE - The CVVL device includes a rocking cam having a rolling face contacting a rocker arm is formed to press the rocker arm when pivoted, a rocking roller, which is disposed above the drive cam and rolls on an outer circumference of the drive cam, a control apparatus, which changes a position of the rocking roller rolling on the outer circumference of the drive cam; and a rocking apparatus, which pivots the rocking cam according to a position of the rocking roller such that a position where the rocker arm is contacted with the rolling face is changed depending on the position of the rocking roller. | 11-26-2009 |
20100077974 | CONTINUOUSLY VARIABLE VALVE LIFT DEVICE AND OPERATION LOGIC THEREOF - A continuously variable valve lift device may include a vibration link having one end eccentrically and rotatably coupled to a rotation shaft, a rocker arm having a middle portion pivotally coupled to the other end of the vibration link, an advance lever having one end coupled to the one end of the rocker arm to select advance or delay, a swivel cam link having one end pivotally coupled to the other end of the rocker arm, and a swivel cam, one end of which is pivotally coupled to the other end of the swivel cam link and the other end of which is pivotally coupled to a stationary shaft to open and close a valve. | 04-01-2010 |
20100139590 | Apparatus for Adjusting Deviation of Engine and Continuously Variable Valve Lift Device Including the Same - An apparatus for adjusting deviation of an engine and a continuously variable valve lift device including the same are provided. The apparatus for adjusting deviation of an engine includes an adjustment member connecting a rocker arm to plural output cams, respectively, to adjust lengths between the rocker arm and the output cams, respectively, so that the lengths become equal to or different from each other. The continuously variable valve lift device includes an eccentric cam shaft with eccentric cams installed on its outer periphery, a rocker arm rotatably installed on the eccentric cams to interlock with plural output cams, and apparatus for adjusting deviation provided on the rocker arm to adjust lengths between the rocker arm and the output cams so that the lengths become equal to or different from each other. | 06-10-2010 |
20110271922 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include an outer tappet body of which a latching portion connecting hole and an outer tappet body guide hole may be formed therewithin, an inner tappet body of which an inner tappet body guide hole may be formed therewithin and slidably disposed within the outer tappet body, a latching portion which may be disposed within the inner tappet body guide hole and selectively coupled to the latching portion connecting hole, a latching portion support pin which guides the latching portion along a longitudinal direction of the inner tappet body guide hole and may be connected to the inner tappet body, a hydraulic pressure chamber, and a plunger which may be slidably disposed in the outer tappet body guide hole and selectively inserts the latching portion into the latching portion connecting hole according to the hydraulic pressure supplied from the hydraulic pressure chamber. | 11-10-2011 |
20110308488 | Continuous Variable Valve Timing Apparatus - A continuously variable valve timing apparatus may include an end plate connected to a camshaft, a drive sprocket rotating the end plate, a first friction plate disposed to be coaxial to the end plate, a second friction plate disposed to be coaxial to the end plate, a first brake selectively braking the first friction plate, a second brake selectively braking the second friction plate, and a control gear portion which changes relative phase between the end plate and the drive sprocket according to braking of the first friction plate or the second friction plate. | 12-22-2011 |
20120000444 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus may include a connecting rod rotatably connected to the piston and the other end being eccentrically and rotatably connected to the crankshaft, an eccentric bearing link, a control link having both ends and a middle portion, the one end being rotatably connected to the other end of the eccentric bearing link, a first shake link having both ends, the one end being rotatably connected to the middle portion of the control link, a second shake link having both ends, the one end being rotatably connected to the other end of the control link, and a control shaft eccentrically connected to a first eccentric cam rotatably connected to the other end of the first shake link and a second eccentric cam rotatably connected to the other end of the second shake link respectively, and rotating together with the first and second eccentric cams. | 01-05-2012 |
20120012090 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus may include an external piston, a piston pin mounted in the external piston and a connecting rod, including an internal piston including a slot and sliding in an interior circumference of the external piston, wherein the piston pin passes through the internal piston and the external piston, a latching pin passing through the piston pin and selectively sliding therein, variable sliders disposed to selectively contact one of both ends of the latching pin, at both sides thereof to push the one of the both ends to the opposite side, and a support plate slidably supporting the variable sliders such that the variable sliders reciprocate perpendicular to length direction of the latching pin, wherein one end of a connecting arm selectively rotating may be connected to the variable slider and a sliding direction of the variable sliders may be controlled by rotation of the connecting arm. | 01-19-2012 |
20120042840 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT APPARATUS - An electro-hydraulic variable valve lift apparatus includes a housing, a driving cam, a pump piston which forms a main chamber with the housing, reciprocates within the housing according to rotation of the driving cam, and forms hydraulic pressure within the main chamber, a pump piston elastic portion disposed for elastically supporting the pump piston, an oil pressure controller communicating with the main chamber in order to control hydraulic pressure within the main chamber, a hydraulic piston slidably disposed within the housing, includes a first body having a first diameter and a second body having a second diameter larger than the first diameter, and is connected with a valve, and a piston guide disposed between the housing and the hydraulic piston for guiding the hydraulic piston. | 02-23-2012 |
20120042854 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus may include a connecting rod provided with one end formed of a mounting hole and the other end eccentrically and rotatably connected to a crankshaft, wherein a piston pin may be inserted in the mounting hole and the connecting rod may be rotatably connected to the piston through the piston pin, an eccentric link provided with an eccentric bearing concentrically and rotatably mounted in the mounting hole may be connected and, the piston pin being eccentrically and rotatably mounted in the eccentric bearing, a variable link pivotally connected to the eccentric link, a variable gear link pivotal with respect to a fixed shaft and having a first gear teeth at an exterior circumference thereof, an external circumferential portion thereof being rotatably connected to the variable link, and a control shaft formed of a second gear teeth engaged to the first gear teeth. | 02-23-2012 |
20120055440 | HYDRAULIC ORIFICE - A hydraulic orifice which is mounted at a head oil journal formed in a cylinder head and supplies an oil to a supply line after reducing pulsation of the oil supplied to the head oil journal, may include a body pressed on the head oil journal so as to form a chamber with the cylinder head, a joining line formed along a longitudinal axis of the body therein and fluid-communicating with the supply line, and at least two hydraulic lines formed in the body and connecting the chamber with an end of the joining line in the body to supply the oil through the other end thereof to the supply line, wherein the oils passing through the at least two hydraulic lines are joined at the end of the joining line with different phases such that the pulsation of the oil in the joining line is reduced. | 03-08-2012 |
20120060783 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus of an engine may include an inner tappet, an outer tappet centrally receiving the inner tappet, a latching unit inserted in the inner tappet and operated by a hydraulic pressure so as to selectively engage the inner and outer tappets by operation, and a protruding member that is coupled to an upper surface edge of the outer tappet so as to protrude outward from an exterior circumference of the outer tappet, and is vertically slidable along a sliding groove of a cylinder head. | 03-15-2012 |
20120073528 | Cylinder Head Having Water Jacket - A cylinder head having a water jacket may include a cylinder head in which a combustion chamber may be formed, and a protruding portion that may be integrally formed with the cylinder head and an exhaust outlet portion may be formed in an outer surface thereof to communicate with the combustion chamber, wherein the water jacket may be formed inside the protruding portion at an upper side and a lower side of an exhaust passage that may be aligned through the exhaust outlet portion, the water jacket having an upper water jacket formed between the upper side of the exhaust passage and an upper surface of the protruding portion, a lower water jacket formed between the lower side of the exhaust passage and a lower surface of the protruding portion, and a connection water jacket connecting the upper water jacket and the lower water jacket in the protruding portion. | 03-29-2012 |
20120079823 | System for Correcting Turbo Lag - A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage, and driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device, wherein the power delivery device comprises a plurality of pulleys, at least one of belts and shafts connecting each pulley to the second compressor, the driving means, or other pulley, and a tensioner maintaining tension of the belt. | 04-05-2012 |
20120079824 | SYSTEM FOR CORRECTING TURBO LAG - A system for correcting turbo lag may include an engine provided with a plurality of cylinders, an intake manifold for supplying air to the plurality of cylinders, and an exhaust manifold for exhausting exhaust gas generated in the plurality of cylinders, an intake passage connected to the intake manifold so as to supply fresh air to the intake manifold, an exhaust passage connected to the exhaust manifold so as to exhaust the exhaust gas gathered in the exhaust manifold, a turbo charger provided with a turbine mounted at the exhaust manifold or the exhaust passage and rotated by the exhaust gas and a first compressor mounted at the intake passage and connected to the turbine so as to rotate with the turbine and compress the air of the intake passage, a bypass passage branching off at a first point of the intake passage and joining the intake passage at a second point of the intake passage downstream of the first point, a second compressor mounted at the bypass passage and compressing the air passing through the bypass passage, and driving means generating power for operating the second compressor and selectively supplying the power to the second compressor through a power delivery device. | 04-05-2012 |
20120079999 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus including an inner tappet, an outer tappet surrounding and slidably contacting the inner tappet, and a latching pin slidably inserted into the inner tappet so as to implement a high lift and a low lift by selectively joining the inner tappet and the outer tappet may include a stopper partially inserted into the outer tappet and spaced apart from the latching pin in a movement direction of the latching pin so as to limit movement of the latching pin, and forming a latching pin joining groove in the outer tappet to selectively receive the latching pin, wherein the stopper partially projects to the outside of the outer tappet and is slidably engaged to a cylinder head groove formed to a cylinder head bore to prevent the variable valve lift apparatus from being rotated. | 04-05-2012 |
20120097878 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus includes a high cam and a low cam fixed side by side to a camshaft, an outer body pressed by the rotation of the high cam, and has a crossbar formed at the bottom of the front end, an inner body, of which the front end protrudes further than the outer body, the lower front end is provided with a valve member, the upper rear end is hinged to a lost motion hinge shaft coaxially with the rear end of the outer body, and the lower rear end is pivotally connected to a hinge member, and a latching portion inserted into the inner body and selectively connected to the crossbar of the outer body to move the inner body dependent on movement of the front end of the outer body, wherein the lost motion hinge shaft is disposed in the same direction as a hinge point between the inner body and the hinge member with respect to the camshaft. Dynamic characteristics can be obtained by reducing the moment of inertia of the variable valve lift apparatus, and the dynamic characteristics can be further improved by inserting the latching portion into the inner body so as to be closer to the camshaft. | 04-26-2012 |
20120111292 | CONTINUOUSLY VARIABLE VALVE TIMING APPARATUS - Power consumption for maintaining a target valve timing and noise in operation is reduced by a continuously variable valve timing apparatus including a camshaft holder fixed to a camshaft, a cam sprocket, a leadscrew screw-coupled with the camshaft holder and the cam sprocket and is movable so as to rotate the camshaft holder and the cam sprocket in opposite directions, and an operating unit operated by a motor and moves the leadscrew. | 05-10-2012 |
20120118251 | HYDRAULIC VARIABLE VALVE LIFT APPARATUS - A hydraulic pressure variable valve lift apparatus may include a housing that a piston chamber that one side thereof is opened is formed, a valve operating piston that is slidably disposed in the piston chamber and one end thereof is connected to a valve for opening/closing a port, and an EHV hydraulic pump that is configured to supply the piston chamber with oil, wherein a first oil passage is formed between the EHV hydraulic pump and the piston chamber on as to supply a side surface of the piston chamber with oil, and an orifice hole is formed from a piston side surface of the valve operating piston to a piston upper end surface. Accordingly, the valve lift amount can be varied according to the operating condition of the engine, a hydraulic pressure variable valve lift apparatus reduces an impact at a moment when the valve is closed by having a valve lift formed a ramp profile and does not require accurate process of multi orifice and thereby decreases a production cost. | 05-17-2012 |
20120125297 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus for an engine receiving combustion force of an air-fuel mixture from a piston and rotating a crankshaft, and for changing compression ratio of the air-fuel mixture. The apparatus may include a connecting rod including one end with a mounting hole and an other end eccentrically and rotatably connected to the crankshaft, an eccentric link including one end connected to an eccentric bearing concentrically and rotatably mounted in the mounting hole, a piston pin eccentrically and rotatably mounted in the eccentric bearing, a variable link including one end rotatably connected to an other end of the eccentric link, a variable gear link pivoting with respect to a fixed shaft and formed of first gear teeth at an exterior circumference, an external circumferential portion rotatably connected to an other end of the variable link, a control shaft including second gear teeth engaged to the first gear teeth and rotating to pivot the variable gear link, and a guide bar, together with the connecting rod, limiting horizontal movement of the eccentric link. | 05-24-2012 |
20120137996 | VARIABLE VALVE TIMING APPARATUS - A variable valve timing apparatus according to the present invention may include a camshaft holder connected to a camshaft, a cam sprocket rotating the camshaft, a rotation shaft disposed to the camshaft holder having a moving screw thread formed thereon, a first and second driven bevel gears disposed to distal ends of the rotation shaft, a screw nut engaged with the moving screw thread and moving along length direction of the rotation shaft by rotation of the first driven bevel gear or the second driven bevel gear so as to change relative phase between the camshaft and the cam sprocket and a gear control portion which selectively rotates the first driven bevel gear or the second driven bevel gear. | 06-07-2012 |
20120280162 | HYDRAULIC PRESSURE VALVE APPARATUS - A hydraulic pressure valve apparatus includes a housing of which a first chamber and a second chamber are formed therein, wherein a diameter of the second chamber is bigger than that of the first chamber, a first piston disposed within the first chamber, an elastic portion disposed within the first chamber for elastically supporting the first piston and a second piston disposed within the second chamber and connected to a valve. | 11-08-2012 |
20120291889 | OIL CONTROL VALVE AND VARIABLE VALVE LIFT SYSTEM PROVIDED WITH THE SAME - An oil control valve includes a housing having a control port and a drain port, a first seat with a first penetration hole forming a first chamber, a second seat with a second penetration hole forming a second chamber communicated with the control port, the second seat with the housing forming a third chamber communicating with the drain port, a first check valve within the first chamber selectively closing the first penetration hole, a second check valve within the third chamber selectively closing the second penetration hole, and a third penetration hole, a control portion selectively opening the first check valve and simultaneously closing the second check valve or selectively closing the first check valve and simultaneously opening the second check valve and an orifice connecting the first chamber with the second chamber. | 11-22-2012 |
20120298059 | ELECTRIC CONTINUOUS VARIABLE VALVE TIMING APPARATUS - An electric continuously variable valve timing apparatus may include a cam sprocket, a camshaft rotatably connected with the cam sprocket, a motor portion, a lead screw portion which may be disposed within the motor portion, may be screwed-engaged with the motor portion, and moves along length direction of the camshaft according to operations of the motor portion, and a camshaft holder rotatably connecting the lead screw portion and the cam sprocket, wherein the camshaft holder moves along length direction of the camshaft according to the movement of the lead screw portion and varies relative phase angle between the cam sprocket and the camshaft for controlling valve timing. | 11-29-2012 |
20130146002 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT SYSTEM - An electro-hydro valve lift system may include a drive cam, a pump piston, a first and a second EHV apparatus, a first oil control valve, a first oil control hydraulic line fluid-communicating the main chamber with the first oil control valve, a second oil control hydraulic line fluid-communicating the first oil control valve with the first EHV apparatus, a third oil control hydraulic line fluid-communicating the main chamber with the second EHV apparatus, a fourth oil control hydraulic line selectively fluid-communicated with the second oil control hydraulic line according to the first oil control valve, an accumulator fluid-communicated with the fourth oil control hydraulic line, and a second oil control valve disposed on the fourth oil control hydraulic line, wherein the fourth oil control hydraulic line is fluid-communicated with the third oil control hydraulic line according to the second oil control valve. | 06-13-2013 |
20140014070 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus mounted on an engine may include an eccentric bearing assembly engaged with the piston through a piston pin, and including an eccentric ring having an eccentric hole so that the piston pin may be rotatably installed therethrough while being eccentric to the eccentric ring, and an eccentric link connected to the eccentric ring to transfer rotation force to the eccentric ring, a first connecting rod rotatably installed at an one side in an axial direction of the eccentric ring, a second connecting rod rotatably installed at the other side in the axial direction of the eccentric ring, and a control shaft connected to the eccentric link to rotate the eccentric bearing assembly by transferring the rotation force to the eccentric ring. | 01-16-2014 |
20140014071 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus mounted on an engine configured to receive combustion force of a mixer from a piston to rotate a crankshaft, and configured to change a compression ratio of the mixer may include an eccentric bearing assembly connected with the piston through a piston pin, and including an eccentric ring including an eccentric hole through which the piston pin passes so that the piston pin may be rotatably installed while being eccentric to the eccentric ring, and an eccentric link connected to the eccentric ring to transfer rotation force thereof to the eccentric ring, a connecting rod including one end provided with a mounting hole into which the eccentric ring may be rotatably inserted, a central portion provided with an operation hole, wherein the eccentric link may be movable through the operation hole, and the other end rotatably connected to the crankshaft while being eccentric to the crankshaft, and a control shaft connected to the eccentric link and configured to rotate the eccentric bearing assembly. | 01-16-2014 |
20140020660 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus may include a connecting rod having a small end portion having an eccentric bearing installation hole, a large end portion rotatably connected to the crank shaft, and a space portion formed in a longitudinal direction of the connecting rod and communicated with the eccentric bearing installation hole, a piston pin fixedly, an eccentric bearing rotatably engaged to the eccentric bearing installation hole and coupled to the piston pin through a pin installation hole of the eccentric bearing, wherein the piston pin may be offset from a center axis of the eccentric bearing, an eccentric link connected to the eccentric bearing, a variable link rotatably connected to the eccentric link, a control link rotatably connected to the variable link, and a control shaft provided in the control link to rotate the control link, wherein the eccentric link may be rotated within the space portion. | 01-23-2014 |
20140041605 | ELECTRO-HYDRAULIC VARIABLE VALVE LIFT APPARATUS - An electro-hydraulic variable valve lift apparatus may include an hydraulic pump body installed in an engine, a piston provided to reciprocate within the hydraulic pump body and forming an hydraulic pump chamber together with the hydraulic pump body, an hydraulic pump cam disposed to be in contact with the piston and enabling the piston to reciprocate according to a rotation thereof, a retainer provided to be slidable along the piston between the piston and the engine and forming a retainer chamber with the engine, a retainer spring elastically supporting the retainer, an oil control valve allowing the hydraulic pump chamber and the retainer chamber to selectively communicate with each other, a valve opening and closing unit communicating with the hydraulic pump chamber and opened or closed according to oil pressure supplied from the hydraulic pump chamber. | 02-13-2014 |
20140090616 | CYLINDER AIR VOLUME DIFFERENCE ADJUSTER AND CONTINUOUS VARIABLE VALVE LIFTER INCLUDING THE SAME - A continuous variable valve lifter having a cylinder air volume difference adjuster includes a camshaft having an input cam, an eccentric control shaft disposed parallel to the camshaft, and a control link rotatable around the eccentric control shaft. An output cam is provided to open and close a valve actuator for opening/closing, and a connection link is rotatably connected to the control link, and driving the output cam by the rotation of the input cam. A cam cap is disposed where the camshaft and the eccentric control shaft are mounted. | 04-03-2014 |
20140096747 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus includes: a piston defining a combustion chamber, a connecting rod connected to the piston; an eccentric link eccentrically connected to the piston, a swing link connected to the eccentric link so as to rotate the eccentric link, a crankpin to which the connecting rod is connected, and a crank web disposed at both sides of the crankpin and provided with a guide portion for guiding downward motions of the eccentric link and the swing link when the eccentric link and the swing link move downward. Thereby, the downward motions of the eccentric link and the swing link are stabilized. | 04-10-2014 |
20140109865 | PRE-CHAMBER STRUCTURE FOR PISTON ENGINE - A pre-chamber structure for a piston engine may include: a pre-chamber combustion chamber in which a mixture of fuel and air is combusted and a pre-chamber compression chamber including a sub-chamber communicating with the pre-chamber combustion chamber and having an inclined wall surface, and a main chamber extending from the sub-chamber, thereby preventing the fuel from being adsorbed and remaining in the wall surface of the pre-chamber compression chamber in a droplet state. | 04-24-2014 |
20140117808 | ELECTRIC MOTOR - An electric motor includes: an electric motor case shaped like a cylinder; an electric motor shaft rotatably provided at a center of the electric motor case; a magnet provided at an inner circumferential surface of the electric motor case; a coil provided to correspond to the magnet; a brush provided between the coil and the electric motor shaft and connected with an external power to transmit current of the external power; and a commutator configured to receive power from the brush and supply the received power to the coil. | 05-01-2014 |
20140123957 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus may include a crankshaft, a connecting rod, first and second eccentric links mounted at both sides of the connection rod, respectively, and having one ends at which the piston pin may be eccentrically and rotatably installed, a swing link of which one end may be branched into two parts to form first and second branches, the first and second branches being connected to the other ends of the first and second eccentric links, and a control device connected to the other end of the swing link to control the swing link, wherein the crank arm includes guide surfaces formed in a predetermined thickness at an inner circumferential surface of the crank arm so that the first and second branches of the swing link slide to move between the guide surfaces. | 05-08-2014 |
20140158067 | VARIABLE CYCLE ENGINE - A variable cycle engine may include a first cylinder that performs an intake, a compression, an explosion, or an exhaust stroke, a second cylinder that performs an intake, a compression, an explosion, or an exhaust stroke, a connection rail that is formed near the first cylinder and the second cylinder, a first variable port that is diverged from one side of the connection rail and is connected to the first cylinder, a second variable port that is diverged from the other side of the connection rail and is connected to the second cylinder, and a first variable control valve disposed on the first variable port and a second variable control valve disposed on the second variable port, wherein the first and second variable control valves are opened or closed accordingly with respect to each other to directly connect the first cylinder with the second cylinder. | 06-12-2014 |
20140158083 | SPARK IGNITION ENGINE - A spark ignition engine includes a main combustion chamber configured to suction a mixture through an intake port, a pre-chamber configured to communicate with the main combustion chamber, an auxiliary cylinder configured to communicate with the main combustion chamber via the pre-chamber, an auxiliary intake passage connecting the auxiliary cylinder and the intake port, an auxiliary piston, and a spark plug configured to ignite the mixture in the pre-chamber. The auxiliary piston is configured to slidably reciprocate in the auxiliary cylinder such that the mixture is suctioned from the intake port via the auxiliary intake passage and the mixture is discharged to the main combustion chamber via the pre-chamber. | 06-12-2014 |
20140165940 | MULTIPLE VARIABLE VALVE LIFT APPARATUS AND ENGINE PROVIDED WITH THE SAME - A multiple variable valve lift apparatus may include a camshaft, a plurality of cams slidably fitted on the camshaft and each having a cam base with a guide groove and a cam lobe, a solenoid valve including an actuating rod capable of being selectively inserted into the guide groove of a cam in the plurality of cams, and a valve opening/closing unit capable of selectively coming in contact with any cam in the plurality of cams. | 06-19-2014 |
20140238356 | VARIABLE COMPRESSION RATIO CONTROL SYSTEM - Disclosed is a variable compression ratio control system configured to change a top dead center of a piston in an engine according to an operation state of the engine. The control system may include a motor provided as a power source, a control shaft coupled to the piston, wherein the control shaft changes the top dead center of the piston by a rotation of the control shaft, a driving shaft connected to the motor and to be rotated by the motor, an operation unit movable in a shaft direction of the driving shaft by a rotation of the driving shaft, and an operation link protruding from one portion of an exterior circumferential surface of the control shaft, wherein the operation unit is connected with the operation link so that the operation link rotates the control shaft while the operation unit moves in the shaft direction of the driving shaft. | 08-28-2014 |
20140251250 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus has a simple design that efficiently operates without interference. The apparatus according may include: a camshaft formed in a hollow cylinder shape; a control shaft disposed in the hollow of the camshaft; a cam that rotates together with the camshaft; a cam rod connecting the control shaft with the cam to move together; an operating unit disposed on the exterior circumference of the camshaft to rotate together with the camshaft; an operating unit rod connecting the control shaft with the operating unit such that the control shaft and the operating unit move together; a solenoid selectively connected with the operating unit, and moving the operating unit along an axial direction of the camshaft; and a tappet contacting the cam to transform rotational motion of the cam to rectilinear motion of a valve. | 09-11-2014 |
20140260244 | CENTRIFUGAL SUPERCHARGER AND SUPERCHARGING SYSTEM FOR ENGINE USING THE SAME - A centrifugal supercharger includes, a drive pulley connected to receive rotating power from an engine. an electronic blocking the rotating power to be supplied to the drive pulley or supplying the rotating power to the drive pulley. a speed increasing device increasing rotation speed of the drive pulley. a compressor including an impeller receiving rotation power having speed increased by the speed increasing device and flowing and compressing external air and an impeller housing. | 09-18-2014 |
20140261267 | MULTISTAGE VARIABLE VALVE LIFT APPARATUS, SYSTEM AND ENGINE - A multistage variable valve lift apparatus includes: a camshaft; a plurality of cams slidably provided on the camshaft and each including a cam base with a guide projection and a cam lobe; a solenoid unit that includes an operating rod with a guide slot into which the guide projection is selectively inserted; and a valve opening/closing portion that comes into selective contact any one of the plurality of cams. | 09-18-2014 |
20140331960 | FLAME JET IGNITION ENGINE - A flame jet ignition engine enables air to be effectively fed to an auxiliary combustion chamber, thereby ensuring facilitating the formation of a fuel mixture of fuel and air and therefore leading to the smooth, stable ignition of the fuel mixture in the auxiliary combustion chamber. | 11-13-2014 |
20150059675 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions slidably disposed on the camshaft and rotatable together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high or low cams, at least two operating unit movable along the camshaft to move the at least two cam portions along the camshaft, a control portion selectively moving the operating unit along the camshaft, a pin disposed at the control portion, and a guide rail formed in a groove shape on an exterior circumference of the operating unit such that the pin is insert therein and guiding relative movement of the pin according to rotation of the camshaft and the operating unit such that the operating unit is moved along an axial direction of the camshaft by the pin. | 03-05-2015 |
20150059676 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus may include a camshaft rotating by drive of an engine, at least two cam portions disposed on the camshaft to be movable along an axial direction of the camshaft and to be rotated together with the camshaft, and forming a high cam and a low cam, a valve opening/closing unit operated by one of the high cam or the low cam formed at the cam portion, an operating unit disposed on the camshaft to move together with one of the at least two cam portions, a solenoid selectively moving the operating unit along an axial direction of the camshaft, a interlock unit rotating together with the camshaft, and disposed between one and the other of the cam portions on the camshaft to be movable along an axial direction of the camshaft, and a pin operating unit selectively moving the interlock unit along the camshaft. | 03-05-2015 |
20150068473 | MULTIPLE VARIABLE VALVE LIFT APPARATUS - A multiple variable valve lift apparatus connected with a valve opening and closing unit which is adapted to rolling-contact one end thereof with a cam and is operated to open or close by a rotation of the cam, and operating to select the cam which is rolling-contacted with the valve opening and closing unit for changing a valve lift, may include a normal cam rolling-contacting with the valve opening and closing unit so as to realize a normal lift of a predetermined valve, and a low cam rolling-contacting with the valve opening and closing unit so as to realize a valve lift which is lower and longer than the normal lift realized by the normal cam, wherein the normal cam or the low cam is selectively rolling-contacted to the valve opening/closing unit according to a driving state. | 03-12-2015 |
20150105998 | CONTROLLING METHOD FOR FLAME JET IGNITION ENGINE - A controlling method for a flame jet ignition engine includes: a setting step of setting a map as a low load operation region, a medium load operation region, and a high load operation region depending on a load which is measured at the time of the driving of the engine; and a first burning step of performing burning by being controlled with an air-fuel ratio more lean than a theoretical air-fuel ratio and reducing NOx while increasing and compensating for a burning rate depending on burning of the jet ignition apparatus, at the time of entering the low load operation region and the medium load operation region. | 04-16-2015 |