Solenoid-operated valve for internal combustion engine

Solenoid-type valve actuator for internal combustion engine

Spark ignition engine with negative valve-overlap

Spark ignition type internal combustion engine

Spark timing control and method

Spark-ignited internal combustion engine

Speed controlled hydraulic lifter for internal combustion engine

Speed limiting governor for internal combustion engine

Speed reduction device

Speed regulators for internal combustion engines, particularly d

Splash lubricated over head valve engine

Spline-type cam phaser

Split-action rocker arm

Spool valve control of an electrohydraulic camless valvetrain

Spool valve controlled VCT locking pin release mechanism

Spool valve controlled VCT locking pin release mechanism

Spool valve for VCT locking pin release mechanism

Spring and valve skirt

Spring assist system for internal combustion engine valves

Spring driven hydraulic actuator