Reciprocating engine i.e. 4-stroke-engine, has cam arranged at shafts and coupled with piston so that piston engages top dead center at end of compaction stroke than in end of discharging stroke, where movements of cam are coupled with rod

摘要

The engine has a piston (11) with periodical changing piston stroke, and a working shaft (7) driven by the piston. An auxiliary shaft (8) is parallel to the working shaft. One of the shafts executes revolution within a duty cycle with four strokes while the other shaft executes two revolutions in equaled periods. An eccentric cam is arranged at both the shafts, where movements of the cam are coupled with a connecting rod (1). The cam is coupled with the piston, so that the piston engages a top dead center at an end of a compaction stroke than in an end of a discharging stroke.