Patent ID: 8365697
Filing Date: 2013-02-05
Classification: F01L,F01P,F02B,F02D,F02F,Y02T

Abstract:
1. An internal combustion engine, comprising: a body defining a cylinder; a piston in the cylinder, a front surface of the piston and a wall of the cylinder defining an internal volume; a port in the body to allow air and fuel into the internal volume; a sleeve valve at least partially around the piston having an exterior surface and a distal end, the sleeve valve being movable between a first position where the port is open and a second position where the sleeve valve closes the port; an oil path-defining piece adjacent to the exterior surface of the sleeve valve, wherein surfaces of the oil path-defining piece and the exterior surface of the sleeve valve define an oil passage; an oil inlet port through the body into the oil passage; an oil outlet port from the oil passage through the body; and a flexible seal having a first end affixed to the body and a second end affixed to the exterior surface of the sleeve valve.