Cylinder-piston assembly

摘要

The present invention pertains to mechanical engineering, and more particularly to cylinder and piston assemblies mainly intended for use in two-stroke internal combustion engines. The cylindrical surface of the piston (5) is provided with recesses (9) located between sealing rings (6) and containing spring-biased elongate members (8). These members provide elongate sealing and define together with seal rings (6) an enclosed sealed area on the surface of the cylinder (1) in the region of the gas distributor ports (2,3). The system described in the present invention may be used to prevent leakage of the last charge and the combustion products from a first port of the gas distributor to the second port through the gap around the piston (5).