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. 16, 2024
Filed:
Feb. 19, 2021
Denso Air Systems Corporation, Anjyo, JP;
Denso Corporation, Kariya, JP;
Fumiaki Nakamura, Kariya, JP;
Minoru Maruyama, Anjo, JP;
Hideaki Inazawa, Kariya, JP;
Masao Mutai, Azumino, JP;
Kouichi Satou, Kariya, JP;
Nobumichi Harada, Kariya, JP;
DENSO AIR SYSTEMS CORPORATION, Anjo, JP;
DENSO CORPORATION, Kariya, JP;
Abstract
A double pipe forms an inner flow path, through which a low-pressure side refrigerant flows, inside an inner pipe, and forms an inner-outer flow path, through which a high-pressure side refrigerant flows, between the outer pipe and the inner pipe. It comprises an expansion valve side connector and a counter-expansion valve side connector which are interposed between distal ends of the outer pipe and the inner pipe and members to be connected. An outer diameter of the outer pipe is 30 millimeters or less. A ratio of a difference between an inner diameter of the outer pipe and an outer diameter of the inner pipe with respect to the inner diameter of the outer pipe is 25% or less. A sealing member is provided to prevent a refrigerant leakage. The plurality of members are mechanically fixed.