Class / Patent application number | Description | Number of patent applications / Date published |
123900330 | Lubrication | 60 |
20090038571 | Oil control valve for variable cam phaser - An oil control valve for a variable cam phaser has a secure steel-to-steel fit between the secondary plate of the bobbin and the frame owing to a shoulder formed in the frame against which the secondary plate abuts, and also owing to an o-ring disposed between the bobbin and frame. This prevents oil from leaking into the electrical connector of the valve, which advantageously can be oriented parallel to the axis of the valve. | 02-12-2009 |
20090107435 | Lubricating System for Valve Operating System - A lubricating system for a valve operating system includes a valve operating system configured to reciprocate a valve for substantially opening and closing a port connected to a combustion chamber of an engine, and an ejecting device provided with an outlet from which a lubricating liquid is ejected. The valve operating system includes a drive cam, a driven member configured to contact the drive cam, a pivot member which is attached to the driven member and is configured to transmit movement of the driven member to the valve, and a relative position changing device configured to change relative positions of the driven member and the pivot member. The outlet of the ejecting device is oriented to face sliding surfaces of the driven member and the drive cam at least in a period which is a part of one rotation of the drive cam. | 04-30-2009 |
20090145387 | ENGINE - A valve mechanism drives an exhaust valve with a valve lifter and an exhaust camshaft. Oil is supplied to a journal surface of the camshaft and a bearing supporting the camshaft journal surface through an axial oil passage formed in the camshaft. The bearing is defined by a cam cap and a bearing main body. An oil collecting recess is defined between cam cap and the bearing main body. An auxiliary delivery passage extends from the oil collecting recess to a sidewall of the bearing that is located adjacent to the valve lifter. A guide wall is formed in the sidewall to lead oil from an opening of the auxiliary delivery passage to a part of the valve lifter that generates a striking noise in the absence of buffering oil. | 06-11-2009 |
20100006046 | ROCKER ARM - A rocker arm configured to be supported by a support portion of an internal-combustion engine and to be driven in a swinging manner by a cam. The rocker arm includes a rocker arm body including a cam follower having a first slide-contact surface, wherein the first slide-contact surface is in sliding contact with the cam, a fulcrum portion including a second slide-contact surface, wherein the second slide-contact surface swingably is in sliding contact with respect to the support portion, and a lubricant discharging portion for biasing a lubricant supplied from the fulcrum portion in a direction toward the first slide-contact surface and discharging the lubricant. The fulcrum portion penetrates the rocker arm and is fastened to the rocker arm body. The fulcrum portion has a through hole supplying the lubricant to the lubricant discharging portion through the rocker arm body. | 01-14-2010 |
20100006047 | ROCKER ARM - A rocker arm supported by a support portion of an engine and to be driven by a cam includes a sheet-metal rocker arm body manufactured by plastic working and including a cam follower, a fulcrum portion manufactured by cutting and including a through hole supplying lubricant, and a lubricant discharging hole. The cam follower includes a first slide-contact surface being in sliding contact with the cam. The lubricant discharging hole is defined by an outer surface of the fulcrum portion and an outer surface of the sheet-metal rocker arm body and in communication with the through hole. The lubricant discharging hole biases the lubricant supplied from the through hole in a direction toward the first slide-contact surface. | 01-14-2010 |
20100012063 | CAM CAP AND OIL PASSAGE CONNECTION STRUCTURE - A gasket provided in a gasket groove, receives the force that acts in the direction in which two pressure-adjusting oil passages are aligned in line, and the magnitude and direction of this force change as the difference between the hydraulic pressures in the pressure-adjusting oil passages varies. However, because the opening of a hydraulic oil supply passage is located on an imaginary line extending through between the openings of the two pressure-adjusting oil passages, pressure is applied from the hydraulic oil supply passage to the gasket, whereby constant and large frictional force occurs between the gasket and the side wall of the gasket groove. Thus, the gasket is firmly retained in the gasket groove, whereby the vibration of the gasket is suppressed. | 01-21-2010 |
20100122679 | Oil circuit of continuously variable valve timing device - An oil circuit for a continuously variable valve timing apparatus, may include a main line that is formed in a cylinder block to receive oil from a hydraulic pump, a first oil line that connects an intake oil control valve that is mounted on a cylinder head that is assembled to the cylinder block with the main line, a second oil line that connects an exhaust oil control valve that is mounted in a cylinder head cover with the first oil line, a third oil line that connects a cam journal that is formed in the cylinder head with the first oil line, and a fourth oil line that connects a timing chain tensioner that is mounted in the cylinder block with the third oil line. | 05-20-2010 |
20100126452 | APPARATUS FOR PREVENTING OIL FROM DRAINING IN ENGINE HAVING HLA - An apparatus for preventing oil from draining in an engine oil supply system, which supplies the oil from a main gallery in an engine to diverge into a first oil pipe communicating with an intake side hydraulic lash adjuster and into a second oil pipe communicating with an exhaust side hydraulic lash adjuster, may include an adaptor installed between the first oil pipe and a main oil passage connected to the main gallery, wherein the adaptor is disposed higher than the first oil pipe so as to prevent the oil from draining back, and wherein the second oil pipe is communicated with the mail oil passage through a connection pipe. | 05-27-2010 |
20100132643 | CAM CAP - A cam cap may include an oil supply circuit formed to the cam cap for supplying hydraulic pressure to a continuously variable valve timing and an oil flowing backward preventing unit disposed to the oil supply circuit for preventing operation oil from flowing backward. | 06-03-2010 |
20100180846 | Rocker arm for internal combustion engine - A rocker arm for an internal combustion engine includes a roller brought into contact with a cam thereby to be rotated, an arm body having a storage portion in which the roller is stored, the arm body being swung by rotation of the cam, thereby opening and closing a valve. The storage portion has an opening edge located on an upper surface of the arm body and opposed to a circumferential surface of the roller, and the opening edge includes a part receiving a lubricant flowing along the upper surface of the arm body, the part being formed with a receiving opening edge jutting out so that both widthwise ends thereof are located away from the circumferential surface of the roller and so that a widthwise central portion thereof comes close to the circumferential surface of the roller. | 07-22-2010 |
20100313838 | CAM CARRIER ASSEMBLY - A cam carrier assembly may include at least a cam carrier mounted on a cylinder head and including a support, an actuator shaft, a portion of which is mounted in the support and rotatable to control a valve life, and a cap mounted on the cylinder head and coupled to the at least a cam carrier to rotatably support the portion of the actuator shaft and surrounding and rotatably supporting the other portion of the actuator shaft, which is not surrounded by the support. | 12-16-2010 |
20110067659 | LUBRICATION SYSTEM FOR PORTABLE FOUR-STROKE ENGINE - A lubrication system for a portable four-stroke engine includes an opening end of the breather passage is disposed at substantially a center of a valve-operating chamber, and the valve-operating chamber is formed by attaching a valve-operating chamber cover. An inner cover is attached to an inner surface of the valve-operating chamber cover so as to be provided along and in contact with the inner surface of the valve-operating chamber cover. A suction passage is formed as a gap between the circumferential edge of the top plate portion and the inner cover. Three or more suction tubes that are in communication with the suction passage are provided in the inner cover, each of the suction tubes having an opening end. At least one of the opening ends of the suction tubes is provided lower than the opening end of the breather passage in an attitude of the engine during use. | 03-24-2011 |
20110277714 | FUEL PUMP TAPPET/ROLLER FOLLOWER LUBRICATION - A cylinder head including a dam defining a reservoir surrounding the periphery of the fuel pump tappet/roller follower mounting hole is provided. The cylinder head includes a tappet/roller follower mounted in the tappet/roller follower mounting hole and in communication with a cam and a fuel pump. The fuel pump is located on the high side of the head and oil drainage occurs in a direction away from the mounting hole. The dam and reservoir are configured to retain lubricant in the mounting hole and the sliding interface between the mounting hole and the tappet/roller follower. The dam and reservoir are configured to retain a minimum level of oil in the mounting hole when the head is in vehicle position. A method is provided for retaining lubrication in the tappet/roller follower hole by forming a dam defining a reservoir in the head and passively providing lubricant to the tappet/roller follower hole. | 11-17-2011 |
20110315106 | OIL SUPPLY DEVICE OF ENGINE - There are provided first and second extending oil passages supplying operational oil to intake-side and exhaust-side lash adjustors, a first connection oil passage interconnecting one end portions of the oil passages, and an oil-pressure control valve selecting a first state in which the first extending oil passage does not connect to a drain oil passage or a second state in which the first extending oil passage connects to the drain oil passage. An orifice is provided in an oil passage which is located on the side of the first connection oil passage relative to a supply portion of the operational oil supplied to the lash adjustor and located on the side of the first connection oil passage relative to another supply portion of the operational oil supplied to the lash adjustor. | 12-29-2011 |
20130025555 | VALVE DRIVE FOR AN INTERNAL COMBUSTION ENGINE - In a valve drive for an internal combustion engine, with a rocker arm ( | 01-31-2013 |
20140158077 | BEARING ARRANGEMENT - A bearing arrangement may include at least one sliding bearing having a polymer coating. The bearing arrangement may bear a camshaft, and at least one of the polymer coating is applied to the camshaft, and the polymer coating is arranged in a bearing ring. An oil trough for collecting oil may be provided on at least one of the bearing ring and a cylinder head which receives the bearing ring. | 06-12-2014 |
20140283774 | ROCKER ARM ASSEMBLY AND METHOD OF LUBRICATING A VALVE TRAIN - A method of lubricating one or more valve train ( | 09-25-2014 |
20150059678 | CYLINDER HEAD ASSEMBLY WITH OIL REFLECTOR FOR LUBRICATION OF A ROCKER ARM - A cylinder head assembly includes a cylinder head defining a port for selectively communicating air to a combustion chamber of an engine or for selectively discharging exhaust gases from the combustion chamber. The cylinder head also defines a valve seat between the port and the combustion chamber. A combustion valve is mounted in the cylinder head and is selectively seated and unseated with the valve seat. A camshaft with a lobe is mounted in the cylinder head. A rocker arm is engaged with the combustion valve and has a follower for following the lobe. An oil spray source provides a spray of oil while an oil reflector is configured to receive the spray of oil and direct the spray of oil to the follower to provide lubrication between the interface of the follower and the lobe. | 03-05-2015 |
20150369096 | VARIABLE VALVE LIFT SYSTEM IN ENGINE AND CONTROL METHOD THEREOF - A variable valve lift (VVL) system in an engine includes an oil control valve and a lock pin configured to be hydraulically actuated against an elastic force of a return spring under a control of the OCV. An orifice through which oil passes is formed to supply hydraulic pressure to the OCV and the lock pin. An oil pressure sensor measures the hydraulic pressure to be supplied to the OCV and the lock pin. A controller is configured to receive a signal from the oil pressure sensor and to control the OCV according to the received signal. | 12-24-2015 |
20160061062 | ROCKER ARM ASSEMBLY AND VALVETRAIN ASSEMBLY INCORPORATING THE SAME - A rocker arm assembly for translating force between an intermediate member in communication with a camshaft of an internal combustion engine and a valve supported in a cylinder head of the engine. The rocker arm assembly includes a tube member and an arm. The tube member has first and second ends, a substantially cylindrical inner surface, and a tapered outer surface. The arm has a body extending between a pad for engaging the valve of the engine, and a socket for engaging the intermediate member of the engine. The body also has a tapered bore disposed between the pad and the socket. The tapered bore of the body of the arm cooperates with the tapered outer surface of the tube member so as to define a lock for constraining the arm to the tube member at a predetermined position between the first end and the second end. | 03-03-2016 |
20160153327 | LUBRICATION PASSAGEWAY FOR LUBRICATION OF CAM FOLLOWER ASSEMBLY | 06-02-2016 |
20160201523 | COMPACT VALVE BRIDGE ASSEMBLY HAVING CARTRIDGE INSERT | 07-14-2016 |
123900340 | Camshaft | 16 |
20090050090 | SYSTEMS AND METHODS OF LUBRICANT DELIVERY - Embodiments of a lubricant delivery system comprise a lubricant feeder comprising at least one outlet port with an outwardly tapering cross section, and a lubricant delivery pipe operable to receive lubricant from the at least one outlet port of the lubricant feeder. The lubricant delivery pipe also comprises at least one lubricant discharge nozzle disposed on the lubricant delivery pipe, wherein the at least one lubricant discharge nozzle is operable to deliver lubricant to portions of the lubricant delivery pipe. | 02-26-2009 |
20090056658 | LUBRICATING DEVICE - A lubricating device comprises a cam shaft, plural cam portions for each valve provided at the cylinder head, a valve driving mechanism to change a rotational movement of the cam portion to an opening-and-closing movement of the valve via a slide member on which a peripheral surface of the cam portion slides, an oil passage of the cam shaft, a nozzle provided at either one of the cam portions to open at the peripheral surface of the cam portion and connect to the oil passage of the cam shaft, and a wall body having a recess portion. The recess portion collects lubricating oil ejected out of the nozzle and guides the lubricating oil collected to the peripheral surface of the other cam portion when the one cam portion is located in a position in which the nozzle is not directed to the slide member. | 03-05-2009 |
20090194049 | CAM CAP - A cam cap has a wall portion that extends between two cam cap portions integrally formed and having connection portions respectively, and therefore the rigidity of the cam cap is high and thus the relative positional accuracies of oil passage connection faces of the connection portions are high even after the cam cap is mounted on an internal combustion engine. | 08-06-2009 |
20100043736 | CAMSHAFT SYSTEM FOR INTERNAL COMBUSTION ENGINE - A camshaft system for internal combustion engine includes a camshaft having a thrust ring which is lubricated by oil from a control valve which operates a camshaft phaser with lubricating oil, and with the lubricating oil being furnished to the camshaft at crankcase pressure after the oil leaves the camshaft phaser. | 02-25-2010 |
20110079192 | VEHICLE ENGINE - A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft rotatably supported between the cam housing and the cam cap, the camshaft supporting a cam; a rocker arm configured to be pushed by the cam; and a valve configured to operate by being pushed by the rocker arm. The vehicle engine being characterized by an oil pipe that is formed integrally with the cam housing. | 04-07-2011 |
20110083627 | VEHICLE ENGINE - A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft rotatably supported between the cam housing and the cam cap, the camshaft supporting a cam; a rocker arm configured to be pushed by the cam; and a valve configured to operate by being pushed by the rocker arm; and an oil pipe that is formed integrally with the cam cap. Lubricant oil is supplied through the oil pipe to a contact point between the cam and the rocker arm. | 04-14-2011 |
20110220049 | ENGINE HAVING CAMSHAFT LUBRICATION RAIL - An engine assembly may include a cylinder head defining a first bearing surface supporting a camshaft, a bearing cap fixed to the cylinder head and a lubrication rail. The first bearing surface may have a first oil inlet extending therethrough. The camshaft may define an axial bore, a first radial passage and a second radial passage. The first radial passage may extend from the axial bore through an outer circumference of the camshaft and may be in communication with the first oil inlet. The second radial passage may extend from the axial bore through an outer circumference of the camshaft. The bearing cap may be fixed to the cylinder head and include a first oil outlet in communication with the second radial passage. The lubrication rail may include a second oil inlet in communication with the first oil outlet and a first lubrication supply passage aligned with a camshaft lobe. | 09-15-2011 |
20120240888 | SWITCHABLE PRESSURE SUPPLY DEVICE COMPRISING A PASSIVE AUXILIARY PRESSURE ACCUMULATOR - A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a cavity formed inside a camshaft; a first displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the first displacement element having a first pressure surface which at least partially delimits a first accumulator chamber together with the wall of the cavity; a first energy accumulator which interacts with the first displacement element, the first displacement element being displaceable against the force of the first energy accumulator from the first end position into the second end position under the effect of pressure applied to the first accumulator chamber; a locking mechanism by which the first displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, having a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the locked state of the first displacement element is maintained in a first switching position and is reversed in a second switching position; a second displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the second displacement element having a second pressure surface which at least partially delimits a second accumulator chamber together with the wall of the cavity; a second energy accumulator which interacts with the second displacement element, the second displacement element being displaceable against the force of the second energy accumulator from the first end position into the second end position under the effect of pressure applied to the second accumulator chamber; the first accumulator chamber and the second accumulator chamber communicating with each other and being connectible to a pressure source in a fluid-conducting manner. | 09-27-2012 |
20130133600 | CAMSHAFT SUPPORT STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A camshaft support structure for an internal combustion engine includes a cylinder head, a camshaft, a plurality of bearings, an auxiliary machine drive cam, an auxiliary machine, and a pulsar plate. The plurality of bearings include a terminal bearing supporting the camshaft to be rotatable with respect to the cylinder head about a rotational axis. The auxiliary machine has a plunger provided to be moved forward and backward by the auxiliary machine drive cam. The pulsar plate projects from the camshaft in a radial direction of the camshaft and is provided on an opposite side of the auxiliary machine drive cam with respect to the terminal bearing. The pulsar plate has a second surface facing the terminal bearing in the axial direction. Each of the first surface and the second surface is provided to slidably contact the terminal bearing. | 05-30-2013 |
20130160728 | FOUR-STROKE ENGINE - A four-stroke engine is provided to lubricate driving parts including a crankshaft and valve operating members while circulating oil, using pressure fluctuation in a crank chamber, the pressure fluctuation being caused by reciprocating motion of a piston. A cam driving parts move with rotation of the crankshaft; a driving chamber and a rocker chamber are connected to one another; the rocker chamber is connected to the crank chamber and a gas-liquid separator; the oil accumulated in a tank is sucked up into the crank chamber and circulated through each part of the four-stroke engine; the crank chamber and the driving chamber are connected to one another via a communicating passage and a return passage; and the crank chamber and the driving chamber connected to one another via the return passage communicate with one another only when the piston is located in a vicinity of the top dead center. | 06-27-2013 |
20130180488 | VALVE TRAIN MECHANISM OF INTERNAL COMBUSTION ENGINE - A valve train mechanism of an internal combustion engine including a cylinder head formed with an intake port and an exhaust port, and a camshaft including a valve for opening or closing the intake port and the exhaust port formed in the cylinder head of the engine, a cam mounted to the camshaft so as to be rotated together, and a rocker arm supported on a rocker shaft to be swingable, in which the valve is opened or closed by swinging the rocker arm by rotation of the cam. The rocker shaft is formed with an oil passage, inside the rocker shaft, extending in an axial direction and with an oil outlet communicating with the oil passage and extending in a radial direction of the rocker shaft. | 07-18-2013 |
20130192554 | LUBRICATING STRUCTURE FOR INTERNAL COMBUSTION ENGINE - There is provided a lubricating structure for an internal combustion engine which has a crankcase, a cylinder block, a cylinder head housing a valve driving device, and a cam housing provided on an upper portion of the cylinder head to support an intake-side camshaft and an exhaust-side camshaft, the lubricating structure including: a main oil passage formed in the cam housing; an oil passage formed in an outer wall upper portion of the cylinder head so as to communicate with the main oil passage; and a pipe connection portion formed so as to allow an external oil pipe to be connected to the oil passage from an outside. | 08-01-2013 |
20140102394 | CAMSHAFT WITH INTERNAL OIL FILTER - Embodiments in accordance with the present disclosure may provide a camshaft having a central oil passage and a radial passage to supply oil from the central passage to a bearing surface. The camshaft may include a filter disposed within the central passage which may allow oil to pass through the radial passage to the bearing surface, and which may prevent particles larger than a predetermined size to pass to the bearing surface. | 04-17-2014 |
20140261268 | INTERNAL COMBUSTION ENGINE AND METHOD FOR PRODUCING SUCH AN ENGINE - In an internal combustion engine comprising a plurality of cylinders with at least one cylinder head including inlet channels extending from an inlet flange surface to a cylinder inlet and outlet channels extending from a cylinder outlet to an opening in an outlet flange surface and an oil chamber provided in the cylinder head for supplying lubricant to an actuation device for gas exchange valves, the inlet flange and the outlet flange have flat surfaces which are arranged at an angle relatively to each other so that the surface planes intersect above the cylinder head and the cylinder head, as a result, has an essentially triangular cross-section. | 09-18-2014 |
20150090210 | CAM BEARING LUBRICATION STRUCTURE FOR INTERNAL COMBUSTION ENGINE - A cam bearing lubrication structure for an internal combustion engine includes a cylinder head having a cam bearing region, a plug hole for an ignition plug and a plug tube fitted liquid-tight therein. The cam bearing lubrication structure includes an outer periphery oil path bypassing along an outer peripheral face of the plug tube, a main lubricating oil passage extending through the plug hole and formed to connect to the outer periphery oil path and a guide passage formed in and through the cam bearing region to connect a sliding face of the cam bearing region from the outer periphery oil path and supplying lubricating oil to a sliding face of the cam bearing region and a camshaft. In addition, a lubricating oil supplying structure is provided for a valve apparatus for further increasing the oil supply amount to achieve a further increase in the speed of the engine. | 04-02-2015 |
20150122210 | ENGINE AND STRADDLE-TYPE VEHICLE EQUIPPED WITH ENGINE - An engine, including a crankcase, a cylinder body extending upward from the crankcase, a cylinder head coupled to an upper portion of the cylinder body, a cylinder head cover coupled to an upper portion of the cylinder head, and a gasket disposed between the cylinder head and the cylinder head cover. The gasket includes a projection that projects along directions from an inner wall of the cylinder head and from the cylinder head cover toward a camshaft. The projection is located in a cam chain chamber, which is formed in the engine along the cylinder body, the cylinder head and the cylinder head cover, and a cam chamber formed in the engine along the cylinder head and the cylinder head cover. The projection has an oil supply portion disposed in the cam chain chamber and above a cam chain guide guiding a cam chain. | 05-07-2015 |
123900350 | Tappet as conduit | 2 |
20150136053 | ROLLER LIFTER LUBRICATION GUIDE - A roller lifter or hydraulic roller lifter, including a lifter body, a roller, axle, internal piston assembly and a lubrication guide depression at a lower wall of the lifter body to direct lubricant to the roller and roller axle. | 05-21-2015 |
20160160695 | Translating Roller Lifter Design for Diesel Engines - A valve lifter assembly for an engine may include a valve lifter body, a roller pin mounted in the valve lifter body and having a crowned barrel portion, and a substantially cylindrical roller mounted about the crowned barrel portion of the roller pin. The roller may have a crowned outer surface with a cylindrical center portion having a constant outer diameter equal to a roller maximum outer diameter, and oppositely disposed variable outer diameter outer portions extending outwardly from either side of the cylindrical center portion toward corresponding roller ends of the roller with a roller outer diameter decreasing as the variable outer diameter outer portions extend outwardly from the cylindrical center portion. The valve lifter assembly may further include a clip having engagement surfaces that are machined to have complimentary shapes to corresponding engagement surfaces of the valve lifter body. | 06-09-2016 |
123900360 | Rocker fulcrum as conduit | 4 |
20080257293 | Connection device for connecting rocker, valve or injection assemblies in internal combustion engines - A connection device for connecting rocker, valve or injection assemblies in internal combustion engines, comprises a button defining a recess for housing herein an insert coupled to a rocker assembly or the like, the recess including a lubricating hole and the button comprising a button face contacting a driving plate and including a slot extending radially between the lubricating hole and the outer periphery of the button. | 10-23-2008 |
20130306015 | LUBRICATION STRUCTURE FOR ROCKER ARM - A lubrication structure for a rocker arm includes a lash adjuster mounted in an accommodating portion located in an end of the rocker arm and a pushrod abutting against a lower end of the lash adjuster. The rocker arm is formed with an arm-inside oil supply passage for supplying lubrication oil to the lash adjuster. The lubrication oil guided into the accommodating portion is further guided through a through guide hole of the accommodating portion to an outer peripheral surface of the accommodating portion. The lubrication oil is further guided from an outer oil supply passage formed downwardly in the outer surface of the accommodating portion to the abutment between the lash adjuster and the pushrod. | 11-21-2013 |
20160084118 | VALVE OPERATING SYSTEM - A valve operating system for an internal combustion engine in which two valves are simultaneously operated by one valve bridge. The valve operating system includes two valves each having a valve stem end; a rocker arm having a forward end, the forward end having a contact surface; and a valve bridge that operates the two valves. The valve bridge includes first and second ends each having an internal sleeve adapted to receive the respective stem end of each valve, a central reservoir, and a roller operably recessed within the central reservoir which is in contact with the contact surface of the rocker arm during actuation. The presence of the roller during operation mitigates the transverse force created by the rotation of the rocker arm upon the valve bridge, thereby increasing efficiency and minimizing wear on the engine. | 03-24-2016 |
20160146063 | ROCKER ARM FOR ENGINES - A method for repairing a rocker arm including smoothing out a bore in an injector arm of the rocker arm to remove at least a portion of worn threads within the bore, and securing a threaded insert within the bore. The threaded insert may include threads on an internal surface of the threaded insert, a smooth portion on an external surface of the threaded insert, and a flange on an end of the threaded insert. | 05-26-2016 |
123900370 | Seals and shields | 1 |
20120060780 | STRUCTURAL OIL BAFFLE FOR ENGINE COVERS - An oil baffle, a system, and a method are disclosed for separating a gaseous component from oil in a blow-by vapor for an internal combustion engine. An example system may include a cam cover configured to be mounted on a cylinder head. The system may also include an oil baffle including a first face coupled to the cam cover and may define an oil separation chamber between the cam cover and the first face. The oil baffle may include one or more stiffening members coupled to and extending from and substantially normal to an opposite face in order to reduce noise. | 03-15-2012 |
123900380 | Housings | 15 |
20090013949 | Camshaft Support Structure of an Internal Combustion Engine - A camshaft support structure of an internal combustion engine ( | 01-15-2009 |
20090044773 | VALVE COVER ASSEMBLY AND METHOD OF CONSTRUCTION - A valve cover assembly for sealed engagement with a cylinder block includes a cover portion, a rail and a molded-in-place elastomeric bridge molded to the cover portion and the rail maintaining the cover portion and the rail in spaced relation to one another. The rail has an outwardly extending mounting flange providing a hard mounting bottom surface that is coplanar with the rail sealing surface. A seal depends from the sealing surface of the rail when in an uninstalled, uncompressed state for compression against the cylinder block upon the sealing surface and the hard mounting bottom surface being brought into engagement with the cylinder block, thereby establishing fluid-tight seal between the valve cover assembly and the cylinder block. | 02-19-2009 |
20090235887 | Roller bearing, camshaft support structure, and internal combustion engine - A needle roller bearing ( | 09-24-2009 |
20090241879 | EXPOSED COIL ROCKER ARM COVER ASSEMBLY HAVING EXTERNAL MULTI-COIL MOUNTING BRACKET - An improved rocker arm cover assembly having an enclosed rocker arm chamber housing and a generally L-shaped bracket for mounting multiple coils to an exterior vertical side wall of the housing, so that the coils are exposed and laterally displaced from the housing. The bottom of the housing includes special seal and flange members to permit sealing mounting to the engine head so that the rocker arm chamber is isolated as a “wet” enclosure from the coil bracket assembly. The housing is mounted directly to the head via a plurality of through bolts. A fully isolated, dual function, oil fill/PCV valve conduit is provided through the top of the housing to permit adding lubrication oil or permitting exhaust of crankcase vapors without contaminating the coils, and permitting independent servicing of the coils. Several variations of coils and coil mounting brackets are disclosed. | 10-01-2009 |
20110139105 | Variable Valve Timing Control Apparatus Cover and Method for Producing the Cover - A variable valve timing control apparatus (VTC) cover is a cover that covers both intake side and exhaust side VTCs respectively controlling valve timing of an intake valve and an exhaust valve by supplying/drawing of oil. The intake side and exhaust side VTCs are arranged parallel to each other and close to each other and installed to an internal combustion engine. The VTC cover has a first cover unit having a first supplying/drawing rod inserted into a rod connecting hole of one of the intake side and exhaust side VTCs to supplies/draws the oil and a second cover unit having a second supplying/drawing rod inserted into a rod connecting hole of the other of the intake side and exhaust side VTCs to supplies/draws the oil. The VTC cover is formed by fixing the second cover unit to the first cover unit. | 06-16-2011 |
20110162609 | VEHICLE ENGINE - A vehicle engine includes: a cylinder head; a cam housing fixed to a top of the cylinder head; a cam cap fixed to a top of the cam housing; a camshaft that is rotatably supported between the cam housing and the cam cap; a cam provided around the camshaft; a rocker arm that is pushed by the cam; a supporting member that supports one end of the rocker arm from below; a cylindrical bore portion for mounting the supporting member; and a base portion for supporting a bottom surface of the supporting member. The bore portion is provided integrally with the cam housing. The base portion is provided integrally with the cylinder head. | 07-07-2011 |
20120042842 | ENGINE INCLUDING VALVE LIFT MECHANISM WITH OIL FLOW CONTROL FEATURES - A valve lift mechanism may include a housing member and a plunger. The housing member may define a first annular wall including a first oil passage. An inner circumference of the first annular wall may define a first continuous region along an axial extent corresponding to the first oil passage from a first location on the inner circumference and circumferentially offset from the first oil passage to a second location on the inner circumference. The plunger may be located within the housing member within the first annular wall. The plunger may define a second annular wall including a series of apertures axially aligned with the first oil passage and separated from one another by an outer circumferential region of the second annular wall. The outer circumferential region may abut the first continuous region of the first annular wall to inhibit oil flow past the outer circumferential region. | 02-23-2012 |
20120234276 | CYLINDER HEAD HOUSING FOR AN INTERNAL COMBUSTION ENGINE - A cylinder head cover is provided for an internal combustion engine having a cover sealing surface for a seal. The seal seals a level cylinder head sealing surface of a cylinder head housing and a curved bearing cap sealing surface of a common frontal bearing cap in relation to frontally arranged camshaft bearings. The curved bearing cap sealing surface of the frontal bearing cap has an outer contour having a middle part above the cylinder head sealing surface and having two transition areas, which slope down diagonally from the cylinder head sealing surface and are skewed in relation to the middle part. | 09-20-2012 |
20130152891 | PLASTIC HEAD COVER OF INTERNAL COMBUSTION ENGINE - A plastic head cover of an internal combustion engine having therein two parallel oil mist separator chambers comprises a plastic cover body that is adapted to be mounted on a cylinder head of the engine and includes lower portions of the separator chambers, and a plastic upper body that includes upper portions of the separator chambers and is mounted on and secured to the plastic cover body in such a manner that the upper portions possessed by the plastic upper body are mated with the lower portions possessed by the cover body, thereby forming an entire construction of the two oil mist separator chambers. | 06-20-2013 |
20130298857 | VALVE COVER AND CASING USED FOR THERMAL ENERGY COLLECTION - A valve cover may be modified or custom made to contain a device that converts thermal energy from the engine into electricity, which can be used for any suitable purpose. Also disclosed is a casing for attaching to a valve cover used in the collection of thermal energy from the engine. | 11-14-2013 |
20140230765 | VALVE COVER - In order to provide a valve cover to which at least one line is securable simply and by using a small number of fastening elements, it is proposed that the valve cover includes the following: a base body that, in the mounted condition of the valve cover, is arranged on an engine block of an internal combustion engine and covers over a valve chamber of the internal combustion engine, and at least one fixing device for securing at least one line to the base body of the valve cover, wherein the fixing device includes a fixing element and at least one fixing element receiver which is arranged on the base body and to which the fixing element is securable or secured by latching. | 08-21-2014 |
20140373797 | NON-RETURN VALVE FOR AN OIL RETURN IN THE CRANKCASE VENTILATION SYSTEM OF A COMBUSTION ENGINE - A non-return valve for an oil return in the crankcase ventilation system of a combustion engine includes a valve housing, a valve body which is mounted in the valve housing so as to be displaceable as a whole between an open position and a closed position, wherein the valve body in the non-operating state of the combustion engine is maintained in the open position without preload and the valve body is configured to automatically move to the closed position in case of an overpressure at the crankcase side with respect to the oil separator chamber. The non-return valve is provided and configured to be inserted into a mounting of a cylinder head cover of the combustion engine. | 12-25-2014 |
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