Lubrication system for four stroke internal combustion engine, has oil collector output controlled with pressure sensitive flexible blade valve, which discharges oil through upward sloping passage

摘要

The lubrication system is designed such that the oil collector (2h) is located in the lowest point of the crank chamber (2CR). A flexible blade valve (75) is located at the output point of the oil collector and opens when the oil pressure in the crank chamber is raised. An oil passage (2k) extends, sloping upwards, from the output point of the oil collector and the output (2q) from this passage is located above the surface level of the oil accumulated in the engine.