Henry C Bailey

US Patent:

40375706, Jul 26, 1977

Filed:

Feb 9, 1976

Appl. No.:

5/656306

Inventors:

Henry E. Bailey - Orinda CA
Dennis H. Bailey - Clear Lake CA
Richard E. Bailey - Clearlake Highlands CA

International Classification:

F01L 1100

US Classification:

123 47A

Abstract:

A four stroke cycle internal combustion engine is disclosed with means to provide auxillary pumping of air directly into the cylinder. The piston head is provided with a sliding valve which is self-acting for injecting air into the cylinder during the intake stroke, and to inject air into the cylinder during a portion of the expansion stroke. An air pumping chamber is formed between the lower portion of the piston and the cylinder carries a self-acting sliding valve which controls the flow of air into the pumping chamber.