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. 08, 2013
Filed:
Jan. 24, 2011
Susumu Yoshimura, Tokyo, JP;
Shinichi Wakamoto, Tokyo, JP;
Shinji Nakashima, Tokyo, JP;
Takashi Sekiya, Tokyo, JP;
Susumu Yoshimura, Tokyo, JP;
Shinichi Wakamoto, Tokyo, JP;
Shinji Nakashima, Tokyo, JP;
Takashi Sekiya, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
In a four-way valve having a simple structure, even if a high-temperature refrigerant and a low-temperature refrigerant flow close to each other, heat loss between both refrigerants is suppressed. The valve comprises a housing member including a valve chamber, a valve seat including a bearing surface portion located in the valve chamber, a first channel through which a high-temperature fluid flows and a second channel through which a low-temperature fluid flows at a predetermined time, including openings adjacent to each other at a bearing surface portion of the valve seat, passing through the valve seat and extending outside of the valve chamber, and a valve element moving to the bearing surface portion of the valve seat. A thermal resistor portion suppressing heat transfer between these channels is located near the openings, between the first and second channels.