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. 12, 1982
Filed:
Apr. 21, 1980
Applicant:
Inventor:
Earl A Clark, Norfolk, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04B / ; F02G / ;
U.S. Cl.
CPC ...
417379 ; 417392 ; 417400 ; 60517 ;
Abstract
A Stirling cycle engine is provided with a variable volume displacer piston for displacing a working fluid alternately between the hot and cold ends of the engine. The drive shaft for the displacer piston is hollow and communicates with the interior variable volume of the displacer piston. As the displacer piston volume increases it draws a fluid being pumped into the system through a check valve. As the volume of the displacer piston decreases the fluid being pumped is ejected under pressure through another check valve. Movement of the displacer piston is accomplished by mechanical or fluid programming and the power for driving the displacer piston may be derived from the fluid being pumped.