| Patent application number | Description | Published |
|---|
| 20080196683 | HIGH PERFORMANCE OVERHEAD VALVETRAIN ASSEMBLY - A high performance overhead valvetrain assembly includes a hydraulic lash adjuster which is received within and supports a trunnion. The trunnion, in turn, is received within a cylindrical passageway in one end of a rocker arm. The opposite end of the rocker arm engages a valve stem. Between the trunnion and the valve stem is a roller adapted the engage a cam of a camshaft. The trunnion stabilized rocker arm permits significantly increased valve lift and improved engine performance. | 08-21-2008 |
| 20090107449 | WINDAGE TRAY - A windage tray apparatus is provided and is configured to be mountable within a crankcase at least partially defined by an engine block of an internal combustion engine. The crankcase has a first bay and a non-adjacent second bay. The internal combustion engine has a crankshaft rotatably supported within the crankcase. The windage tray includes a tray member and a passage at least partially defined by said tray member and in communication with the first bay and the non-adjacent second bay. The passage is operable to allow gas transfer between the first bay and the non-adjacent second bay to reduce the motoring friction of the internal combustion engine. An internal combustion engine incorporating the disclosed windage tray apparatus is also provided. | 04-30-2009 |
| 20090159028 | HYDRAULICALLY LASHED END PIVOT ROCKER ARM - A hydraulically lashed end pivot rocker arm assembly finds application in high performance valve trains of internal combustion engines. The rocker arm is mounted at one end upon an eccentric bearing assembly and includes a surface for engaging a valve stem at the opposite end and a roller engaged by a camshaft disposed between the ends. The eccentric bearing assembly includes a stub shaft or cylindrical body that is received within a bore in the rocker arm and an eccentric bore which receives an inner shaft which extends along the cylinder head and supports the eccentric bearings and the rocker arm assemblies. The stub shaft or cylindrical body includes an ear or lug which is engaged by a hydraulic lash adjuster disposed parallel to and offset from the vertical plane of motion of the rocker arm. | 06-25-2009 |
| 20100224155 | CAMSHAFT DAMPING MECHANISM AND METHOD OF ASSEMBLY - A camshaft damping mechanism may include first and second housing members and a biasing member. The first housing member may be engaged with a camshaft. The second housing member may be slidably coupled to the first housing member and may abut an engine structure. The biasing member may be retained axially between the first and second housing members and may force the first housing member in an outward axial direction from the second housing member. | 09-09-2010 |
| 20100269773 | VALVETRAIN FOR OVERHEAD VALVE ENGINE - An engine assembly may include an engine structure, a camshaft rotationally supported within the engine structure and including a lobe, a first rocker arm, a valve lift mechanism, a valve, and a second rocker arm. The first rocker arm may include a first end rotationally coupled relative to the engine structure and a second end defining a cam engagement surface engaged with the lobe and a convex lift surface opposite the cam engagement surface. The valve lift mechanism may have a first end engaged with the lift surface of the first rocker arm. The second rocker arm may be supported relative to the engine structure and engaged with a second end of the valve lift mechanism and the valve to selectively open the valve based on displacement of the lift mechanism by the first rocker arm. | 10-28-2010 |
| 20110067654 | MULTIPIECE CAMSHAFT ASSEMBLY - A camshaft assembly may include a monolithic camshaft body, a journal member and a thrust ring. The monolithic camshaft body may define lobes and journal regions along an axial extent thereof. The journal member may be separate from and fixed to an axial end of the camshaft body adjacent an end lobe of the camshaft body. The thrust ring may be axially secured to the camshaft assembly at the axial end of the camshaft body. | 03-24-2011 |
| 20110083639 | CYLINDER DEACTIVATION TO REDUCE FUEL ENRICHMENT AFTER FUEL CUTOFF MODES - A system includes a fuel cutoff module and a cylinder deactivation module. The fuel cutoff module generates a fuel cutoff signal when a deceleration fuel cutoff condition occurs, wherein fueling to M cylinders of an engine is disabled based on the fuel cutoff signal, and wherein M is an integer greater than or equal to one. The cylinder deactivation module deactivates the M cylinders in response to the fuel cutoff signal. | 04-14-2011 |
| 20110174257 | Intake Manifold - An intake assembly for a 3-cylinder, V-configured engine comprises an intake manifold configured to conduct combustion air to a first, two-cylinder, cylinder head housing assembly and a second, single-cylinder, cylinder head housing assembly. A centrally extending plenum defines a plenum axis. A first plurality of intake runners, in fluid communication with the plenum, extend from a front side and transition through a circumferential arc around an upper side to deliver combustion air to, the first, two-cylinder, cylinder head housing assembly. A single intake runner, in fluid communication with the centrally extending plenum, extends from a rear side and transitions through a circumferential arc around the upper side to deliver combustion air to, the second, single-cylinder, cylinder head housing assembly. A zip tube delivers combustion air to the central plenum at a location that is between one of the first plurality of intake runners and the single cylinder intake runner. | 07-21-2011 |
| 20110174260 | Internal Combustion Engine - A modular engine family comprises an engine block assembly having an upper end extending at an angle α from a rear of the engine block assembly to a front thereof. An engine block closes the upper end and defines a crankcase comprising a crankshaft having three journals supported by journal bearings for rotation therein. First and second piston pins and associated first and second piston/rod assemblies are disposed in piston cylinders of a first cylinder housing assembly wherein the first and second piston pins are located in the same radial position on the crankshaft and are spaced longitudinally to define a firing interval of 360 degrees. A cylinder head is configured to close open ends of the piston cylinders to thereby define combustion chambers with the first and second pistons; the cylinder housing assembly reclined from vertical towards the rear of the engine block by an angle β. | 07-21-2011 |
| 20110174566 | Internal Combustion Engine and Vehicle Packaging for Same - A motor vehicle has an internal combustion engine mounted in a central tunnel of the vehicle floor pan. The internal combustion engine comprises an engine block assembly having a lower end closed by an oil pan and an upper end extending at an angle α from a rear of the engine block assembly to a front thereof. An engine block closes the upper end and defines a crankcase that is configured to house a crankshaft for rotation therein. A cylinder housing assembly is reclined from vertical, towards the rear of the engine block, about an axis of the crankshaft by an angle β. At least a portion of the cylinder housing assembly and the crankcase are disposed in the central tunnel of the vehicle floor pan. | 07-21-2011 |
