Patent ID: 8784086
Filing Date: 2014-07-22
Classification: F01C,F04C

Abstract:
1. An engine comprising: a fluid inlet; a fluid outlet; a rotary valve downstream from the fluid inlet, the rotary valve including a first rotary piston including a first abutment, the first abutment being configured to be driven by fluid from the rotary valve, and a second abutment, the second abutment being configured to drive fluid to the fluid outlet; and a second rotary piston including a first abutment, the first abutment being configured to be driven by fluid from the rotary valve, and a second abutment, the second abutment being configured to drive fluid to the fluid outlet, and to drive the first abutment of the first rotary piston, wherein the second abutment of the first rotary piston is configured to drive the first abutment of the second rotary piston, wherein the rotary valve is configured to rotate synchronously with the first rotary piston.