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:
Jan. 11, 2000
Filed:
May. 30, 1997
Applicant:
Inventor:
Peter F Hufton, Derbyshire, GB;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02G / ;
U.S. Cl.
CPC ...
60 3963 ; 60682 ; 92153 ; 92DI / ;
Abstract
A reciprocating engine (10) comprises separate cylinders (12 and 15) for air compression and expansion with heating of the compressed air taking place in a heat exchanger (17) or combustor (64) located between the cylinders (12 and 15). The flow of gas into the expander cylinder (15) is controlled by an admission valve (37). The stem (41) of the admission valve (37) extends transversely across the expander cylinder (15) and is cooled by the flow of exhaust gases out of the expander cylinder (15).