Patent ID: 6119649
Filing Date: 2000-09-19
Classification: F01C,F02B

Abstract:
An engine comprising one or more annular cylinders with round cross section, in each annular cylinder there being at least two rotating pistons with cross sections which correspond to the cross section of the annular cylinder, and which rotating pistons are located on the periphery of a rotor disk which sits torsionally strong on one shaft, each annular cylinder being divided by plate cams which are made as rotary valves and which penetrate slots with peripheral areas located transversely to the extension of said annular cylinders, and said rotary valves dividing their annular cylinder into cylinder chambers including an intake compression chamber and an expansion chamber and said rotary valves having as control recesses therein rotary valve recesses, and each annular cylinder having at least one intake channel opening and at least one exhaust channel opening and at least one overflow channel with outlet and inlet openings from and to said annular chamber which are opened and closed by said pistons, wherein said rotary valves include:a) a rotary valve which fits into each overflow channel and into said annular cylinder between said intake compression chamber and said expansion chamber thereof, andb) a rotary valve which fits into said annular cylinder between said expansion chamber and said intake compression chamber thereof,c) wherein said rotary valve recesses include recesses arranged in said rotary valves such that they clear each annular cylinder for passage of said rotating pistons thereof, andd) wherein said rotary valve recesses include recesses arranged in said rotary valves such that they clear said overflow channels directly before or during closure of said outlet opening and during closure of said inlet opening by said rotating pistons.