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:
Feb. 18, 1992
Filed:
Mar. 20, 1991
Yutaka Momose, Anjo, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Abstract
There is disclosed an oil-free compressor integral with a Stirling engine. The compressor is used as an air compressor or in air-conditioning equipment. The Stirling engine has a cylinder in which a displacer piston is slidable. An expansion space and a compression space are formed on opposite sides of the piston. The compressor comprises a first pressure chamber communicating with the compression space, a second pressure chamber connected with a Rankine heat pump circuit via valves, a first buffer chamber communicating with the compression space via a first orifice, and a second buffer chamber connected with the second pressure chamber via a second orifice. The first pressure chamber is partitioned from the second pressure chamber by a first diaphragm. The first buffer chamber is partitioned from the second buffer chamber by a second diaphragm. These two diaphragms are connected together by a rod such that they move together axially. The pressure acting on one side of each diaphragm is balanced by the pressure acting on the other side.