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:
Apr. 12, 1977
Filed:
Mar. 22, 1976
Roelf Jan Meijer, Eindhoven, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A hot-gas reciprocating engine comprising at least three pistons which each separate a space of lower temperature and a space of higher temperature. Each space of lower temperature is each time connected, via a regenerator and a heat exchanger which is in heat-exchanging contact with a reservoir containing heat-accummulating material, to a space of higher temperature having volume variations which lead in phase as well as to a space of higher temperature having volume variations which lag in phase. The said connections include valves which are operated by means for selectively releasing one of the two connections, each of the pistons co-operating, by way of a drive rod, with a tiltable plate which is mounted on a rotatable shaft. When the connections between the spaces of lower temperature and the relevant spaces of higher temperature with volume variations which lag in phase are released, the valve control means take along the independently operable means for tilting the plate in order to tilt the plate further.