Patent ID: 7584726
Filing Date: 2009-09-08
Classification: F02B

Abstract:
1. A two-stroke opposite radial rotary-piston engine comprising a stationary housing; a stationary cylinder block assembled with the housing, said block including a rotor having a closed inner operation surface formed by a predeterminedly curved line, said rotor is revolvably supported substantially by the housing and the cylinder block; two traverses each attached to one of said pistons; a number of support rollers attached to each of said traverses, said rollers being springly depressed against said rotor; two stationary oil pump tubes, said tubes closed from both ends with guide bushings, said tubes including tube's inner sidewalls, said bushings including bushings' inner sidewalls; oil supply means for at least supplying oil into said tubes; oil withdraw means for at least withdrawing oil from said tubes; two plungers slidely disposed within each of said tubes so that a second gap of a predetermined size being formed between the plungers and the tube's inner sidewalls, the size of the first gap being essentially greater than the size of the second gap, said plungers attached to said traverses and oppositely movable in relation to each other being guided by the guide bushings, said plungers each including a longitudinal through throttling channel and an outward surface, said bushings' inner sidewalls and said outward surfaces substantially forming two external spaces, said plungers each including an inward surface, said inward surfaces and said tube's inner sidewalls forming an internal space, said internal space communicating with said oil supply means and said oil withdraw means; and oil drain means for communicating the external spaces with said oil supply means.