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:
Mar. 01, 1977
Filed:
Dec. 04, 1975
William Allen Doerner, Wilmington, DE (US);
Oral R Van Buskirk, Wilmington, DE (US);
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
A regenerator for rotary Rankine cycle engines having an annular boiler and an internal coaxial expander for pressure vapor generated in the boiler, comprising at least one annular series of axially extending heat exchange tubes disposed radially inward of the boiler and an array of axially spaced annular fins on each of said tubes which rotate with the engine. A condenser for the exhaust vapor rotates with the engine and means is provided for conducting exhaust vapor to the condenser after passing through the regenerator fins and for returning liquid condensate from the condenser to the regenerator for passage through the tubes thereof in heat exchange relation with the exhaust vapor conveyed between the fins on the tubes.