The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 19, 2003
Filed:
Oct. 16, 2001
Richard Patton, Starkville, MS (US);
Other;
Abstract
An internal combustion engine and method is disclosed wherein a separate compression cylinder and an adiabatic power cylinder are used and a regenerator or pair of regenerators is mounted between them to provide heat for hot-air ignition. The single regenerator embodiment operates as a two-stroke cycle engine and the embodiment with an alternating pair of regenerators operates as a four-stroke cycle engine. Improvements include a power transfer valve with an anti-backflow design using a recessed valve seat, a rapid leakdown lifter, and ceramic coatings to minimize blow-by, seal the power cylinder during the combustion process, and protect the valve. Additionally, the power cylinder piston, power cylinder head and power transfer valve are all either made from ceramics or have ceramic coatings to insulate the gases and prevent loss of heat from the gases to the cooling system. The lower pressures allows the soft spray of fuel without forming soot.