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:
Oct. 18, 2005
Filed:
May. 12, 2000
William R. Peitzke, Santa Barbara, CA (US);
James G. P. Dehlsen, Goleta, CA (US);
Geoffrey F. Deane, Goleta, CA (US);
William R. Peitzke, Santa Barbara, CA (US);
James G. P. Dehlsen, Goleta, CA (US);
Geoffrey F. Deane, Goleta, CA (US);
Gyroton Corporation, Carpenteria, CA (US);
Abstract
A thermodynamic cycle for an internal combustion rotary engine is disclosed which achieves high efficiency through an asymmetry between the volume of air charge before compression and the volume of expanded air at the completion of expansion. The expanded volume is ideally selected such that the pressure of the exhaust gases is near the ambient pressure of the intake air. Three embodiments of engines which utilize the cycle are disclosed, one with the major components operating in uniform circular motion, one which utilizes lobe valves, and one which utilizes three sets of lobe valves such that three charges of air at various stages in the cycle are in the engine, thus increasing the power density of the engine.