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| Number | Title | Issue Date |
| 8166939 | Cam bearing surface of an engine cylinder head that includes an axially extending oil passage A method of forming a cylinder head may include machining an upper surface of a cam tower of the cylinder head to form a generally planar surface. An oil passage may be drilled in the upper surface to provide an oil feed. A bearing bore may be formed in the upper su... | 05/01/2012 |
| 8056521 | Bearing device The present invention relates to a bearing device (1) for supporting a camshaft (2) in a cylinder head with at least two bearing blocks (3) which support the camshaft (2), and which are axially penetrated by the camshaft (2) to be ... | 11/15/2011 |
| 7942121 | 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... | 05/17/2011 |
| 7685983 | 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... | 03/30/2010 |
| 7673604 | 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 defi... | 03/09/2010 |
| 7665437 | Oil passage structure of valve operating system In a cam journal (12A) in which a timing-advance oil passage (12a) and a timing-retard oil passage (12b) are provided as a first oil passage for VVT, an oil passage (102c) for HLA is provided as the second oil passage... | 02/23/2010 |
| 7455040 | Hydraulic circuit for switchable cam followers An oil distribution system for an internal combustion engine comprising a longitudinal bore in the engine head or block connected to an engine oil pump. A longitudinal insert is disposed in the engine bore, the insert being formed and disposed to define segmented ga... | 11/25/2008 |
| 7395802 | Oil supply for internal combustion engine camshaft An oil supply system for an internal combustion engine camshaft includes an oil distribution block configured for attachment to an engine structure adjacent to and above a camshaft, with attachment of the oil distribution block occurring after the camshaft has been ... | 07/08/2008 |
| 7377246 | Vertically oriented camshaft cap oil diverter An improved cam shaft configuration for internal combustion engines is provided wherein the oil is efficiently diverted from the camshaft cap to adjacent camshaft lobes. A reorientation of the camshaft oil diverter improves the distribution and increases the quantit... | 05/27/2008 |
| 7357112 | Method for reorienting a horizontal shaft diesel engine to vertical operation A method for modifying a small diesel engine from a horizontal drive or crankshaft orientation into a vertical crankshaft orientation incorporates blocking of existing oil flow paths to rocker arms of the engine and replacement with pressurized low volume oil flow. ... | 04/15/2008 |
| 7322327 | Lubrication structure of camshaft with variable valve timing A lubrication structure for a camshaft with variable valve timing includes an advance hole, which includes an advance flow passage formed in a camshaft body. An end of the camshaft is attached to a continuously variable valve timing. A retard hole, which includes a ... | 01/29/2008 |
| 7290514 | Valve train lubricating structure in internal combustion engine To prevent a drop in a lubricating oil supply pressure in a valve train from occurring by disposing a lubricating oil supply path for the exclusive use of the valve train without allowing the lubricating oil to flow through an oil gallery, thereby securing a suffici... | 11/06/2007 |
| 7273026 | Roller follower body The present invention relates to a roller follower, comprising an outer surface, enclosing a first cavity, a second cavity, and a transition opening, wherein the first cavity includes a first inner surface configured to house a cylindrical insert the second cavity i... | 09/25/2007 |
| 7237518 | Oil filter for continuous variable valve timing apparatus in engine An oil supply passage of a cylinder head increases design freedom of cylinder heads. The oil filter variously sets the oil supplying position through which oil enters into an oil filter. This improves fuel consumption by simplifying the oil supply passage of the cyl... | 07/03/2007 |
| 7228833 | Rocker system for an internal combustion engine An improved rocker system for actuating valve lift events of an internal combustion engine is provided. The system includes a rocker arm and an actuator link with the actuator link arranged to be in constant driving engagement with the rocker arm and a camshaft. A r... | 06/12/2007 |
| 7228832 | Internal combustion engine with translatable camshaft An internal combustion engine having a camshaft which is translatable between first and second positions to control an engine operating characteristic. The camshaft is rotationally driven from the engine crankshaft, and includes an oil pump member in fluid communica... | 06/12/2007 |
| 7225776 | Valvetrain with two-step switchable rocker and deactivating stationary lash adjuster The invention provides a valvetrain configuration in an internal combustion engine in which a plurality of two-step rockers enable the engine poppet valves to switch between two lift profiles. In addition, a lost-motion stationary lash adjuster enables the deactivat... | 06/05/2007 |
| 7172040 | Riding type mower A work vehicle comprises: a plurality of wheels; a vehicle body supported by the wheels; a transmission case provided on the vehicle body, the transmission case having a first case portion and a second case portion and a middle portion extending between respective l... | 02/06/2007 |
| 7165522 | Cylinder head of an internal combustion engine having a camshaft bearing rail A cylinder head of an internal combustion engine is provided with a cylinder head housing and with a divided camshaft bearing rail having a lower part, which comprises lower bearing blocks, and having an upper part, which comprises upper bearing covers. In addition,... | 01/23/2007 |
| 7146956 | Valve train for internal combustion engine A valve train for an internal combustion engine is comprised of a lubricating oil, and a camshaft which is made of an iron-based material and comprises a cam lobe and a camshaft journal. The camshaft slidingly moves on a counterpart thereof through the lubricating o... | 12/12/2006 |
| 7124731 | Internal combustion engine with oil temperature sensor The invention relates to an engine arrangement that increases the degree of freedom of the engine state sensor while decreasing the size of the engine body. More specifically, the engine is formed with a chamber for housing a valve train and serving dually as a retu... | 10/24/2006 |
| 7121242 | Lubricating structure of OHC internal combustion engine A lubricating structure for an OHC internal combustion engine including a cam holder, wherein an oil feed path for feeding a lubricant to an upper end of a valve stem is formed integrally with the cam holder so as to project therefrom. ... | 10/17/2006 |
| 7121243 | Valve case and resin cylinder head cover A valve case includes an attaching portion and a sleeve. The valve case is attached to a cylinder head cover main body formed of resin. The attaching portion is formed of resin and is a portion of the valve case to which an oil control valve is to be attached. The s... | 10/17/2006 |
| 7107950 | Variable valve actuating mechanism for internal combustion engine A lift and operating angle varying mechanism is arranged to vary an intake valve operation angle and an intake valve lift of the engine continuously by rotating a control shaft with an actuator disposed at an end of the control shaft which is rotatably supported by ... | 09/19/2006 |
| 7104694 | Bearing apparatus for camshaft in engine A bearing cap is bolted to the cylinder head by a cap bolt to fix relative position of the camshaft to the cylinder head. An oil escape bore that connects a cap bolt insert bore formed in the bearing cap through a chain casing to an oil pan is formed in the bearing ... | 09/12/2006 |
| 7100749 | Operating material supply device The invention relates to an operating material supply device for hydrodynamic components, for example, hydrodynamic switching elements for use in starting units, retarder assemblies or gearing assemblies. The material supply device includes an operating material res... | 09/05/2006 |
| 7093980 | Bearing structure for camshaft The present invention is directed to a bearing structure for a camshaft to prevent obliquely wiping off the oil from the surface of the camshaft caused by a knife edge. A lower journal (3) for supporting the camshaft (2) is formed with a counterbore ( | 08/22/2006 |
| 7093571 | Internal combustion engine In an internal combustion engine having an electromagnetically driven valve for driving one of an intake valve and an exhasut valve, at least a lubricating oil passage to a head section including a lubricating oil passage to the electromagnetically driven valve is p... | 08/22/2006 |
| 7082918 | Oil pressure control system and method for engines with hydraulic cylinder deactivation An oil lubrication and control system, for an engine having cylinder deactivation switching lifters operated at the pressure of the full oil system, is provided with an auxiliary pressure relief valve which opens to control maximum oil pressure in the system wheneve... | 08/01/2006 |
| 7055476 | Valve actuation apparatus for internal combustion engine A VA apparatus for an internal combustion engine includes a pair of VO cams disposed on both sides of a crank cam and having inside end faces opposed to each other, wherein the inside end faces have therebetween an annular portion of the crank arm supported in a san... | 06/06/2006 |
| 7055471 | Hydraulic lifter feed gallery with aeration removal orifice An apparatus and method for providing lubricant to a plurality of hydraulic lifters in an internal combustion engine is disclosed, in which the amount of gas bubbles present in the lubricant provided to the lifters is reduced or eliminated so that lifter noise is re... | 06/06/2006 |
| 7032554 | Thrust cam cap for engine camshaft The present invention provides a thrust cam cap for an engine camshaft disclosed to effectively place a thrust cam cap to limit the longitudinal movement of an engine camshaft according to the location of a thrust bearing cap that limits the longitudinal movement of... | 04/25/2006 |
| 7007648 | Oil passage structure for engine To provide an oil passage structure for an engine in which a tensioner arm is in sliding-contact with a cam chain for speed-reducing a rotational power of a crankshaft by half and transmitting the resultant power to camshafts for driving an intake valve and an exhau... | 03/07/2006 |
| 7004131 | Engine shaft pump A rotary shaft pump for increasing supplied oil pressure to a pressure responsive device in an internal combustion engine. The pump includes a housing adapted to carry a plurality of axially spaced journals of a rotatable shaft. The shaft also includes at least one ... | 02/28/2006 |
| 6953015 | Engine An engine has a first camshaft having a power input portion at one end thereof and a second camshaft interlocked and connected with the first camshaft at one end portion thereof have axes which are parallel with each other and are rotatably supported on a cylinder h... | 10/11/2005 |
| 6935298 | Lubricating device for motorcycle engine There is provided a lubricating device for a motorcycle combustion engine, which allows the motorcycle to exhibit a desired banking angle and also to have a lower center of gravity. The lubricating device is designed to supply a lubricant oil to an in-line multicyli... | 08/30/2005 |
| 6928971 | Camshaft adjusting device for internal combustion engines of motor vehicles A camshaft adjusting device for internal combustion engines of motor vehicles has an intake camshaft adjuster and an exhaust camshaft adjuster driven by an endless drive connected to the crankshaft. The intake and exhaust camshaft adjusters are connected by a gear t... | 08/16/2005 |
| 6920856 | Camshaft mounting structure for a cylinder head The camshaft mounting structure for a cylinder head includes a journal part placed at the front of a cylinder head and supports a camshaft and accommodates a bolt coupling hole for securing the cylinder head and the cylinder block. The cylinder block includes oil ho... | 07/26/2005 |
| 6912982 | Device for changing the angle of rotation of a camshaft relative to a drive wheel of an internal combustion engine In a device for changing the angle of rotation of a camshaft arranged in a cylinder head of an internal combustion engine relative to a drive wheel of the internal combustion engine, wherein a hydraulic adjusting arrangement is arranged between the drive wheel and t... | 07/05/2005 |
| 6904882 | Valve mechanism, in particular for internal combustion engines of motor vehicles A valve lift mechanism, in particular for internal combustion engines of motor vehicles, has a driven cam element, a valve control member which can be driven (translational movement or pivot rotation) by the cam element, and a flexible enveloping element, wherein th... | 06/14/2005 |
