A valve operation controller for an internal combustion engine is provided for optimally setting a valve opening timing and a valve closing timing for an intake valve in accordance with an operating state of the internal combustion engine to improve the fu...

A valve train of an internal combustion engine has rocker arms (23,24) which are spherically supported on lash adjusters (21,22) and camshafts (25,26) disposed above the rocker arms. The camshafts are rotatably supported on a cam holder (H) including a low...

The invention relates to a holder (1) for fastening assemblies, preferably fuel high-pressure injection pumps (7), to cylinder heads of reciprocating piston internal combustion engines. In doing so, the holder replaces one or more camshaft bearing bridges ...

A control apparatus calculates a exhaust gas air-fuel ratio of a plurality of cylinders, in which the operation angle of an intake valve (2) is set to a predetermined operation angle, e.g., a maximum operation angle, based on a value output from an air-fue...

A device for holding a rotary element stationary relative to another rotary element adjacent thereto, comprising a first holding member (10; 110) engageable with one of said rotary elements; a second holding member (11; 111) engageable with one of said rot...

The cylinder head has a housing (10) containing bearing blocks (24,24') for the inlet or outlet camshaft (12) and a camshaft adjuster (22) for altering the position of the camshaft drive wheel relative to the camshaft rotation axis. At least one bearing bl...