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. 11, 2000
Filed:
Jul. 17, 1998
Yoshitaka Tomatsu, Chiryu, JP;
Teruyuki Hotta, Nagoya, JP;
Hisayoshi Sakakibara, Nishio, JP;
Yukikatsu Ozaki, Nishio, JP;
Denso Corporation, Kariya, JP;
Nippon Soken Inc., Nishio, JP;
Abstract
A pressure control valve controlling the temperature and pressure at the outlet side of a heat emitter so as to enable efficient operation by a CO.sub.2 system operating at the super critical region, wherein CO.sub.2 is sealed in a closed space at one side of a diaphragm moving the valve element at a density of approximately 600 kg/m.sup.3, a through member made of a material with a high heat conductivity is provided extending between the inside and outside of the closed space, and step differences are eliminated at the contact surfaces to improve the durability of the diaphragm.