Roy B Howarth

US Patent:

45823286, Apr 15, 1986

Filed:

Dec 27, 1983

Appl. No.:

6/565859

Inventors:

Roy B. Howarth - Clifton Park NY

Assignee:

Mechanical Technology Incorporated - Latham NY

International Classification:

F16J 1540
F16J 900

US Classification:

277 75

Abstract:

A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.

US Patent:

44226497, Dec 27, 1983

Filed:

Mar 2, 1982

Appl. No.:

6/354020

Inventors:

Roy B. Howarth - Clifton Park NY

Assignee:

Mechanical Technology Incorporated - Latham NY

International Classification:

F16J 900

US Classification:

277 75

Abstract:

A piston ring design for a Stirling engine wherein the contact pressure between the piston and the cylinder is maintained at a uniform level, independent of engine conditions through a balancing of the pressure exerted upon the ring's surface and thereby allowing the contact pressure on the ring to be predetermined through the use of a preloaded expander ring.