The changing device (1) is provided with a drive element (4) propelled by a sprocket (3), where two hydraulic chambers are formed between the drive element and the camshaft (2). The hydraulic chambers are impinged with a compressed fluid. The sprocket form...

A spring seat is formed of an outer spring seat 10k and an inner spring seat 10j formed in a stepped-down shape so as to be positioned lower than the outer spring seat 10k, and a valve spring is formed of an outer spring 37 and an inner spring 36 that is d...

A camshaft rotational detection structure is configured that can improve the precision with which the camshaft (2, 3) rotational angle is detected. The camshaft rotational detection structure detects the rotational angle of a camshaft (2, 3) to which rotat...

A mechanism for enabling the duration of a valve event in an internal combustion engine to be varied, comprising a drive shaft (10) rotatable in synchronism with the engine crankshaft, a cam sleeve (12) rotatably mounted on the drive shaft for opening and ...

Axial internal combustion engine comprises a linear shaft consisting of an outer main flywheel (1), a regulating flywheel for the compression ratio, a path flywheel (3), and an eccentric flywheel (4). These components form a STROFEA. Preferred Features: Th...

A mechanism is disclosed for enabling the duration of a valve event in an internal combustion engine to be varied. The mechanism comprises a drive shaft 10 rotatable in synchronism with the engine crankshaft, a cam sleeve 12 rotatably mounted on the drive ...