Reciprocating engine used as a reciprocating internal combustion engine comprises a lubricant pump having a plunger operated by the pressure in a liquid column interacting with a hydraulic piston

摘要

Reciprocating engine comprises a working piston (5) arranged in a cylinder (4) and having a hydraulic system with at least one hydraulic piston (8) suspended on the working piston and interacting with a displaceable hydraulic liquid column. A lubricant is used as the hydraulic fluid. A lubricant pump (67) built into the hydraulic piston has a plunger (69) operated by the pressure in the liquid column interacting with the hydraulic piston. The plunger engages in a pump chamber (68) impinged upon by hydraulic fluid and from which at least one lubricant line (70) leads to at least one lubricating site (71) of the working piston. Preferred Features: The pump chamber has a suction line (73) leading from a collecting chamber (75) for leaking fluid in the region of the hydraulic piston.