Device to vary compression ratio in reciprocating piston engines during operation has plate-shaped module containing slide housing, auxiliary chamber with piston, and located between crankcase and cylinder head

摘要

The device has a slide housing (6), an auxiliary chamber (19) with piston (18), and an adjusting unit are contained in a plate-shaped module. This is located between the upper surface (5) of a cylinder crankcase (1) and the lower surface (16) of a cylinder head (9). Within the module, the cylinder bore (2) extends from the crankcase. The module is held non/positively by cylinder head screws. In a multi-cylinder engine, the module extends over all cylinder units.