INTERNAL COMBUSTION ENGINE Russian patent published in 2013 - IPC F01L5/04 F01L9/02 F02M57/04 

FIELD: engines and pumps.

SUBSTANCE: proposed engine comprises housing, working member, at least, one working chamber formed by housing and working member surfaces, combustion chamber making a component of working chamber, intake and exhaust channels and moving bush. Working chamber is configured to communicate with exhaust channel via mobbing bush. Working chamber can be isolated (sealed) from exhaust channel by touch between moving bush end surface and housing mate surface. Moving bush end surface and housing mate surface are flat. Moving bush inner surface makes a part of combustion chamber surface. Housing mate surface represents a valve seat. Moving bush inner surface section adjoining its end surface features smaller diameter than that of moving bush other inner surface. Valve seats doubles as a combustion chamber heat-isolation insert.

EFFECT: reliable separation from of working chamber exhaust channel.

3 cl, 2 dwg