Intake and exhaust chambers

摘要

An engine has a stationary first body portion with one or more surfaces that define a portion of a fluid flow path through the engine. The stationary first body portion has a substantially cylindrical outer surface. A first piston assembly is configured to reciprocate relative to the stationary first body portion and to accommodate one or more second piston assemblies reciprocating inside and relative to the first piston assembly. The first piston assembly has an extension portion. The extension portion has a substantially cylindrical inner surface that defines a space to receive the stationary first body portion. One or more sealing elements are between the substantially cylindrical outer surface of the stationary first body portion and the extension portion of the first piston assembly.

主权项

1. An engine comprising:
a stationary first body portion with one or more surfaces that define a portion of a fluid flow path through the engine, the stationary first body portion having a substantially cylindrical outer surface; a first piston assembly configured to reciprocate relative to the stationary first body portion and to accommodate one or more second piston assemblies reciprocating inside and relative to the first piston assembly; the first piston assembly having an extension portion, the extension portion having a substantially cylindrical inner surface that defines a space to receive the stationary first body portion; and one or more sealing elements between the substantially cylindrical outer surface of the stationary first body portion and the substantially cylindrical inner surface of the extension portion of the first piston assembly.