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:
Nov. 30, 1982
Filed:
Jul. 25, 1980
John J Dineen, Durham, NC (US);
Mechanical Technology Incorporated, Latham, NY (US);
Abstract
A free-piston Stirling engine compressor includes a hermetic vessel enclosing a working space in which a displacer reciprocates for displacing working gas through a heater, regenerator and a cooler so as to create a pressure wave. The pressure wave acts on an engine diaphragm to displace fluid in an adjacent hydraulic chamber to drive a power piston on a power stroke. The power piston acts in the hydraulic chamber against an adjacent compressor diaphragm to compress a gas in a compression space and expell the compressed gas through an exhaust valve. A control system is provided for adjusting the mean pressure in the engine working space to maintain a predetermined proportional relationship between the mean pressure in the compression space and the engine working space.