|7392775||Helical cam device and method|
A helical cam device for use with a wide variety of applications generally includes a first cam component, a second cam component and an axial guide. The cam components each have a helical cam track located on an axial end, so that coaxial alignment of the two cam c...
|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...
|7219638||System comprising a cam and a cam follower element and use of such a system|
A system (1) comprising a cam (2) with a cam lug (3) and a cam follower element (11) which undergoes an oscillating reciprocating movement in the direction of its longitudinal axis (12) when the cam (2) rotates, in which
|7007647||Rotary actuator device for controlling the stroke of gas charge exchange valves in the cylinder head of an internal combustion engine|
A rotary actuator device is used to control the stroke of at least two gas exchange valves in a cylinder head of an internal combustion engine. The device includes first and second actuating mechanisms, first and second rocker motors, and a force transfer element. E...
|7004127||Actuator having drive cam and valve lift controller using the actuator|
An actuator is used for controlling an intake valve lift of an automotive engine. A control shaft is joined with a transmission device on its one end side, and is joined with a valve lift controller on the other end side. The control shaft is arranged perpendicularl...
|6935289||Valve drive system for four-stroke engine|
A valve drive system capable of reducing the friction resistance of rocker arms and facilitating replacement work of tappet-clearance adjusting shims. The valve drive system can comprise a rocker arm that is slidable between a first position at which the pushing por...
|6748913||Rocker arm arrangement for engine|
An engine includes an engine body. A camshaft shaft is journaled for rotation within the engine body. A rocker arm shaft also is disposed within the engine body. Intake and exhaust rocker arms are pivotally mounted on the rocker arm shaft. The intake rocker arm is a...
|5954018||Mode selective internal combustion engine|
A cylinder of a mode selective internal combustion engine is operable in two modes, including one active mode with conventional operations of cylinder valves and another passive mode with continuously closed or open engine valves. By creating ideal combus...
|5809953||Variable valve timing mechanism|
A number of embodiments of twin overhead cam shaft reciprocating machines having a plurality of poppet valves. A variable valve timing mechanism is interposed between the cam shafts and respective of the poppet valves for varying their lift and for changi...
|5564373||Cylinder valve drive for internal combustion engine|
A valve drive for an internal combustion engine, comprises a valve train which is operable in a first state to transfer the rotational motion of a low lift cam lobe to the reciprocating motion of a cylinder valve against a valve spring. The valve train is...
|5205247||Infinitely variable lift cam follower with consistent dwell position|
An apparatus for cyclically actuating an actuation member in response to rotation of a cam shaft having a cam carried thereon is disclosed. The apparatus preferably includes a shaft capable of angular rotation through at least a predetermined arc, a cam f...
|4061115||Valve train for internal combustion engine|
A system for varying valve timing; i.e. the rotational angle of the crankshaft during which an intake or an exhaust valve of a cylinder of a reciprocating internal combustion engine is open which results in varying valve overlap, and for varying valve lif...