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| Number | Title | Issue Date |
| 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 |
| 7146948 | Valve lifting arrangement A valve actuating assembly for opening and closing a valve includes a cam mounted on a camshaft and enclosed by a pair of rotary cam guides each of which includes a roller channel having an outer race for receiving opposed ends of a roller that extends transversely ... | 12/12/2006 |
| 7140337 | Valve gear mechanism In a valve gear mechanism of an internal combustion engine, there is provided a valve opening and closing a combustion chamber, a spring device which generates a force pressing the valve toward a valve seat, a drive mechanism driving the valve in an opening directio... | 11/28/2006 |
| 6851403 | Valve drive having a rocker arm A valve drive having a rocker arm mounted on a cylinder head is provided. One end of the rocker arm is actuated by a push rod to actuate a valve stem of a poppet valve that engages the other end of the rocker arm, which is pivotably held between its ends on a suppor... | 02/08/2005 |
| 6505591 | Valve train with assembly guides A valve train with components connected by ball and socket joints is provided with projecting assembly guides adjacent the sockets of selected joints. The assembly guides include guide surfaces angling toward the sockets to guide the ball end of a push ro... | 01/14/2003 |
| 6425359 | Valve moving apparatus of an internal combustion engine A valve moving apparatus of an internal combustion engine has an intake camshaft with an intake variable cam piece for opening and closing an intake valve, and an exhaust camshaft with an exhaust variable cam piece for opening and closing an exhaust valve... | 07/30/2002 |
| 6273042 | Rocker assemblies for control of engine valves and method of assembling such rocker assemblies Improved rocker assemblies for use in opening a valve in an engine are disclosed, along with an improved method of assembling the rocker assemblies. The rocker assemblies have pivotable rocker arms with rocker balls and sockets as in the prior art. A reta... | 08/14/2001 |
| 5692462 | Transfer valve assembly providing variable valve lash A valve assembly for use in a dual compression/dual expansion engine having an internal housing operating within an external housing, the valve assembly having a valve element operating in a valve guide secured to the internal housing with a valve spring ... | 12/02/1997 |
| 5611308 | Apparatus for interconnecting an actuator and an exhaust valve opening member Apparatus for interconnecting an actuator and a pivotable exhaust valve opening member includes a recess in the exhaust valve opening member and a bearing member disposed in the recess and capable of swiveling therein. A plunger is carried by the actuator... | 03/18/1997 |
| 4961407 | Rocker arm with a cost push rod seat A rocker arm for a rocker arm assembly of an internal combustion engine. The rocker arm includes a pushrod portion for engaging the distal end of the pushrod and for movement between a raised position and a lowered position, the pushrod portion having a p... | 10/09/1990 |
| 4856468 | Ball-and-socket joint A ball-and-socket joint interposed between a rocker arm and a valve shaft of an internal combustion engine including a journal cooperating with the rocker arm and having a crowned end face which cooperates with a spherical cavity of a joint socket provide... | 08/15/1989 |
| 4763615 | Desmodromic valve system The invention relates to a desmodromic system in which a valve stem is arranged to be acted upon directly, or by way of rockers, by an opening cam and a closing cam rotatable together at constant or varying angular velocity in synchronism with the rotatio... | 08/16/1988 |
| 4724803 | Rolling contact rocker arm with reaction member, rocker key and roller follower A rocker arm in an internal combustion engine is pivotably supported by a fixed fulcrum retainer with a rocker key operatively positioned therebetween. The rocker arm and fulcrum retainer each have a concave, semi-cylindrical bearing surface and the rocke... | 02/16/1988 |
| 4269388 | Valve operating mechanism An engine poppet valve operating mechanism comprises a pivotal link which is positioned in use to engage the stem of the valve to be operated. An electro magnetic device has a winding which electric current can be supplied when it is required to open the ... | 05/26/1981 |
| 4104996 | Gap self-compensating hydraulic rocker arm A gap self-compensating valving mechanism for an internal combustion engine, provided with a hydraulic pressure retaining mechanism arranged in place between a rocker shaft and a rocker arm. The hydraulic pressure containing mechanism includes lifters, a ... | 08/08/1978 |
| 3986485 | Rocker arm shafts Novel rocker arm shafts and rocker arm assemblies employing such shafts are disclosed for aligning a plurality of rocker arms and shafts that are individually removable from and attachable to a base such as an engine block. Rocker arms mounted on the shaf... | 10/19/1976 |
