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. 19, 1996
Filed:
Aug. 17, 1995
Hideo Mita, Okazaki, JP;
Katsunobu Kanda, Toyohashi, JP;
Hideo Misawa, Anjo, JP;
Toshiki Herai, Kokubunji, JP;
Ken Nagashima, Hachioji, JP;
Aisin Seiki Kabushiki Kaisha, Kariya, JP;
Railway Technical Research Institute, Tokyo, JP;
Abstract
A cooling system includes a cold-accumulating refrigerator, and a cooling circuit. The cold-accumulating refrigerator includes a regenerator. The cooling circuit includes a main circuit, and a branched circuit. The main circuit includes a counterflow heat exchanger. The branched circuit is branched from an upstream portion of the main circuit, and joined to a downstream portion thereof, thereby reducing one of the flows of a refrigerant, flowing in a high-pressure-side passage and a low-pressure-side passage which are disposed in the counterflow heat exchanger, with respect to the other one of the flows. Moreover, the branched circuit includes a heat exchanger, and the heat exchanger is thermally brought into contact with a portion of the regenerator whose temperature is varied from a high temperature to a low temperature by another refrigerant flowing therein. Thus, the cooling efficiency of the cooling system is remarkably improved synergetically by the cooling resulting from the flow-difference in the counterflow heat exchanger, and by the extra cooling stemming from the thermal-contact at the regenerator.