Patent application number | Description | Published |
20080314344 | CONTINUOUS VARIABLE VALVE LIFT APPARATUS - A continuous variable valve lift apparatus according to an exemplary embodiment of the present invention includes a camshaft, an input cam disposed to the camshaft, a variable lever that is rotably connected to the camshaft and includes a first arm including a first connecting shaft and a second arm including a second connecting shaft, a first link rotating around the first connecting shaft corresponding to a rotation of the input cam, an output cam rotating around the camshaft, a valve opening/closing portion that is opened and closed corresponding to a rotation of the output cam, and a connecting portion that is disposed for the output cam to rotate corresponding to a rotation of the first link. | 12-25-2008 |
20090031971 | CONTINUOUS VARIABLE VALVE LIFT APPARATUS - A continuous variable valve lift apparatus includes an input cam disposed on an input shaft, a valve opening/closing portion, and a rocker arm rotating shaft. A rocker arm rotates around the rocker arm rotating shaft corresponding to a rotation of the input cam. An output cam is disposed at an end of the rocker arm, and opens and closes the valve opening/closing portion. A control portion controls a position of the rocker arm rotating shaft. | 02-05-2009 |
20090090317 | TAPPET APPARATUS - A tappet apparatus cooperates with a valve and a cam. The apparatus includes a case to reciprocate motion of the cam; and a locking unit in the ease, movable between an activated position at which the valve reciprocates motion of the case, and a deactivated position at which the valve is stationary regardless of the motion of the case. The locking unit may include first and second passages in the case; a pin, movable between a first and a second position within the first passage; and a column in the second passage. The pin may be situated in the column when the pin is in the second position. The activated position may be defined by the pin being in the first position, and the deactivated position may be defined by the pin being in the second position. | 04-09-2009 |
20090139492 | VARIABLE COMPRESSION RATIO APPARATUS - A variable compression ratio apparatus that changes the compression ratio of an air-fuel mixture in a combustion chamber according to a driving state of an engine, enablements may include a connecting rod receiving the combustion force from the piston; a pin link receiving a part of the combustion force from the connecting rod and rotating the crankshaft; a support link disposed substantially in parallel with the connecting rod; a division link receiving a part of the combustion force from the connecting rod and transmitting the part of the combustion force to the support link; a control link provided with one end coupled to the division link in order to change position of one end of the division link; and an eccentric camshaft coupled to other end of the control link in order to change position of a rotational axis of the control link. | 06-04-2009 |
20090151343 | Integrally Formed Engine Exhaust Manifold and Cylinder Head - An engine in which an exhaust manifold is integrally formed with a cylinder head may include the exhaust manifold in which at least one passage, which is connected to at least one exhaust port disposed in a first cylinder, and at least one passage, which is connected to at least one exhaust port disposed in a second cylinder, are formed, wherein the passage at the first cylinder and the passage at the second cylinder join together to communicate with a first single exhaust outlet. | 06-18-2009 |
20090151677 | VARIABLE VALVE LIFT APPARATUS - A variable valve apparatus includes a high lift cam and a low lift cam in parallel with the high lift cam. A tappet body includes a high lift tappet body that constantly contacts the high lift cam, and a low lift tappet body that is disposed in the high lift tappet body and selectively contacts the low lift cam. An inner column is connected with a valve and reciprocally disposed within the low lift tappet body. A supporting member is disposed below the tappet body. A lost motion elastic member is disposed between the supporting member and the tappet body for supplying restoring force to the tappet body. A first connector selectively connects the high lift tappet body and the low lift tappet body. A second connector selectively connects the low lift tappet body and the inner column. | 06-18-2009 |
20090151682 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus according to an exemplary embodiment of the present invention includes a low lift cam, a high lift cam in parallel with the low lift cam, a low lift tappet body that selectively contacts the low lift cam, a high lift tappet body disposed within the low lift tappet body and constantly contacting the high lift cam, a guide portion that is connected with a valve and selectively connects the low lift tappet body and the high lift tappet body, and a lost motion spring that is disposed between the guide portion and the low lift tappet body and supplies restoring force to the low lift tappet body. | 06-18-2009 |
20090151694 | VARIABLE VALVE LIFT APPARATUS OF ENGINE FOR VEHICLES - A variable lift apparatus of an engine for a vehicle may include a camshaft in which a cam is formed, a swing arm one side of which is supported by a supporting portion and another side of which operates a valve, an output arm including a roller press portion extended in one direction and a rotating arm extended in another direction, a first roller disposed in the connecting portion in which the rotating arm and the roller press portion are connected and that contacts the cam, a second roller disposed in the swing arm and contacting a roller contacting surface, a variable link connected with a lower end side of the rotating arm protruding in a lower side of the output arm by a hinge shaft and moves the hinge shaft according to a guide slot formed in a guide and a variable rotation shaft for operating the variable link. | 06-18-2009 |
20090193806 | VARIABLE TURBOCHARGER AND CONTROL METHOD FOR THE SAME - A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed. | 08-06-2009 |
20090241526 | Exhaust Manifold Being Integrally Formed with Cylinder Head - An engine includes exhaust manifold integrally formed with a cylinder head. The engine may include an exhaust manifold having at least one single exhaust outlet for exhausting exhaust gas that is exhausted from at least two cylinders that are not adjacent with each other, wherein periods during which exhaust valves are open are not overlapped with each other between the at least two cylinders. | 10-01-2009 |
20090293825 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include a camshaft having an input cam, a rocker arm shaft disposed in parallel with the camshaft with a distance therebetween, a shaft carrier with a camshaft and a rocker arm shaft, a rocker arm that is mounted on the rocker arm shaft with a first roller contacting the input cam, a first link connected to the rocker arm, an amplification lever with a middle portion thereof connected to the first link and the shaft carrier, a second link connected to the amplification lever, an output cam mounted on the camshaft, one side of the output cam connected to the second link, and a profile portion formed at an exterior circumference thereof, a variable driveshaft rotating the shaft carrier by a predetermined angle, and a valve moved by the profile portion with rotation of the output cam. | 12-03-2009 |
20100000497 | Variable Compression Ratio Apparatus - A variable compression ratio apparatus may include a connecting rod rotatably connected to the piston so as to receive the combustion force therefrom, a pin link mounted to the crankshaft and rotatably connected to the connecting rod so as to receive the combustion force from the connecting rod and rotate the crankshaft, a connecting link rotatably coupled to the pin link and changing a rotation trace of the pin link with respect to a rotation axis of the crankshaft, an eccentric camshaft provided with first and second shaft portions eccentric from each other and configured to rotate by a predetermined angle according to a driving condition of the engine, a sub control link rotatably connected to the eccentric camshaft about the first shaft portion and rotatably connected to the connecting link, and a main control link rotatably connected to the eccentric camshaft about the second shaft portion and rotatably connected to the connecting link. | 01-07-2010 |
20100122677 | Continuous variable valve lift apparatus - A variable valve lift apparatus may include an input unit, a control link disposed to a control shaft, a driving cam that is provided with a contact portion and pivotally disposed to the control shaft, a valve opening unit that contacts the contact portion and is opened and closed in accordance with pivoting of the driving cam, wherein the control link, the input unit and the driving cam are connected by a connecting unit, and contact positions of the valve opening unit and the contact portion are variable according to a relative rotation angle of the control link around the control shaft. | 05-20-2010 |
20100307436 | VARIABLE VALVE LIFT APPARATUS THAT IS EQUIPPED WITH SWING ARM - A variable valve lift device equipped with a swing arm variably lifting an exhaust valve or an intake valve may include an outer body in which a mounting groove is formed in the middle portion thereof, an inner body mounted inside the mounting groove of the outer body and with a rear end thereof pivotally-connected to the outer body in the outer body, and a latching portion formed in the outer body and the inner body and fixing or releasing a front end portion of the inner body to the outer body. | 12-09-2010 |
20100307438 | VARIABLE TAPPET - A variable tappet may include an outer tappet body, an inner tappet body that is slidably disposed within the outer tappet body and selectively connected with the outer tappet body, a lost motion elastic member that is disposed within the outer tappet body and elastically supports the outer tappet body, and a connecting unit that is slidably disposed within the inner tappet body and selectively connects the outer tappet body and the inner tappet body. | 12-09-2010 |
20110108001 | COMPRESSION IGNITION GASOLINE ENGINE - A compression ignition gasoline engine uses low-cetane number fuel, such as gasoline. The engine includes a combustion control device having an injector directly injecting fuel into a combustion chamber, intake and exhaust valves, and a variable valve device changing a valve timing, in which the compression ignition gasoline engine includes: at least two intake valves and two exhaust valves; a spark plug positioned at the center portion of the combustion chamber; and an injector positioned adjacent to the spark plug toward the center portion of the combustion chamber, in which the exhaust valve is a symmetric valve lift in which the lift and the opening section of the tow exhaust valves are the same in low lift, and the intake valve is an asymmetric valve lift in which the lift and the opening of the two intake valves are different in the low lift. | 05-12-2011 |
20110108006 | VARIABLE COMPRESSION RATIO DEVICE - A variable compression ratio device including a piston, a crankshaft, and a connecting rod may include an eccentric bearing that contacts an exterior circumference of the piston pin, wherein an exterior circumference of the eccentric bearing contacts an interior circumference of a ring formed at the small end of the connecting rod, a ratchet rod slidably coupled inside the piston pin and movable along a longitudinal direction, a variable slider that selectively contacts one of both ends of the ratchet rod, and that is disposed at both sides of a cylinder for pushing the one of both ends of the ratchet rod in an opposite direction, and a guide plate for reciprocally moving both variable sliders along a vertical direction of the ratchet rod. | 05-12-2011 |
20110126806 | VARIABLE COMPRESSION RATIO DEVICE - A variable compression ratio device that includes a piston, a piston pin, and a connecting rod of which one end is connected to the piston by the piston pin, may include an eccentric ring rotatably coupled in a ring at the one end of the connecting rod, wherein the inner circumference thereof rotatably contacts with the outer circumference of the piston pin, an operating pin that longitudinally reciprocates in the piston pin, variable sliders that selectively contact one of both ends of the operating pin under a cylinder to push the one of both ends to the opposite side, and a guide plate that slidably supports the variable sliders, wherein, one end of a variable shaft selectively rotating is connected to the variable slider and a sliding direction of the variable slider is controlled by the rotation of the variable shaft. | 06-02-2011 |
20110132305 | VARIABLE TAPPET - The present invention relates to a variable tappet, and the variable tappet may include an inner tappet body of which a latching member connecting hole is formed thereto, a protrude portion formed to the latching member connecting hole, an outer tappet body which is disposed around the inner tappet body and slidable to the inner tappet body and a latching member which is disposed to the outer tappet body and selectively connected to the latching member connecting hole. | 06-09-2011 |
20110272612 | VARIABLE VALVE LIFT APPARATUS - A variable valve lift apparatus may include an opening/closing portion, a low lift cam which selectively contacts the opening/closing portion, a high lift cam which may be disposed parallel to the low lift cam, a control portion, a pad hinge connected to the control portion, and a pad, an end of which may be pivotally coupled to the pad hinge, the pad slidably contacting the high lift cam and the opening/closing portion, wherein, the control portion selectively changes position of the pad hinge. | 11-10-2011 |
20120017586 | VARIABLE TURBOCHARGER AND CONTROL METHOD FOR THE SAME - A variable turbocharger including a turbine housing, a first scroll fluidly communicating with a turbine, a second scroll formed along an outside of the first scroll, wherein the first scroll and the second scroll are disposed within the turbine housing for exhaust gas to exhaust through the turbine, a partitioning unit for selectively separating the first scroll and the second scroll, and a a flux control valve disposed at the exhaust gas inflow portion and selectively coupled to the partitioning unit for blocking the exhaust gas from flowing into the second scroll. The variable turbocharger may prevent turbo lag at a low speed and be highly efficient at a high speed. | 01-26-2012 |