| 摘要 |
A rotary piston internal combustion engine with two counter-rotating pistons (14, 15) located on the same axis and engaging with one another. One of the pistons acts as a compression or charging piston and the other as an expansion or propulsion piston. The design is aimed at providing a favourable co-ordination between the charging piston and the propulsion piston with the operating chamber of the propulsion piston being several times that of the charging piston, and is such that the two rotary pistons, whilst maintaining conjugate peripheral angles of approximately 360<o>, possess different peripheral lengths which leave in the rotary piston paths, operating chambers of different sizes, which take into account a pressure increase between the inlet air and the combustion gas. Furthermore, effective operation is achieved by annular valve slides (29, 30) which are incorporated in the housing on both sides of the rotary pistons, whose outer radii together are smaller than the distance of the rotary axes from one another. In this way it is also possible to obtain a symmetrical bearing system on both sides of the rotary pistons for high engine rpm.
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