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. 21, 1992
Filed:
May. 29, 1990
Charles T Darragh, San Diego, CA (US);
Solar Turbines Incorporated, San Diego, CA (US);
Abstract
Circular heat exchangers have been used to increase the efficiency of engines by absorbing heat from the exhaust gases and transferring a portion of the exhaust heat to the intake air. The present heat exchanger is built to better resist the internal forces and pressures and to better withstand the thermal stress from the cyclic operation of the engine. The plurality of evenly spaced individual tension rings are positioned about the outer portion of the core and the plurality of compressive hoops which are positioned at the inner portion of the core resisting the forces which are attempting to separate the passages. The rings and the hoops are in contact with the core and totally in heat transferring relationship with the donor fluid. The rings further expand and contract in response to the temperature changes of the donor fluid and maintain a preestablished force on the core of the heat exchanger.