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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.:

US 9895956 B1

PDFFull Text
Date of Patent:
Feb. 20, 2018

Filed:

Jun. 12, 2013

Vehicle air conditioning apparatus for low outside air temperature use

Applicant:

Sanden Corporation, Isesaki-shi, JP;

Inventors:

Hiroshi Satou, Isesaki, JP;

Megumi Shigeta, Isesaki, JP;

Assignee:

SANDEN HOLDINGS CORPORATION, Isesaki-shi, JP;

Attorney:

Cozen O'Connor

Primary Examiner:

Ljiljana Ciric

Int. Cl.
CPC ...
B60H 1/00 (2006.01); B60H 1/22 (2006.01); F25B 5/02 (2006.01); F25B 40/00 (2006.01); F25B 40/02 (2006.01); F25B 49/02 (2006.01); B60H 1/32 (2006.01); F25B 29/00 (2006.01); F25B 30/02 (2006.01);
U.S. Cl.
CPC ...
B60H 1/2215 (2013.01); B60H 1/00921 (2013.01); B60H 1/3204 (2013.01); B60H 1/3223 (2013.01); F25B 5/02 (2013.01); F25B 29/003 (2013.01); F25B 30/02 (2013.01); F25B 40/00 (2013.01); F25B 40/02 (2013.01); F25B 49/022 (2013.01); F25B 2339/047 (2013.01); F25B 2341/0662 (2013.01); F25B 2400/0403 (2013.01); F25B 2400/0409 (2013.01); F25B 2400/0411 (2013.01); F25B 2400/0417 (2013.01); F25B 2400/13 (2013.01); F25B 2400/23 (2013.01); F25B 2600/021 (2013.01);
Abstract

A vehicle air conditioning apparatus including a heat released refrigerant expansion valve that decompresses the refrigerant discharged from the radiator during the heating operation and the first heating and dehumidifying operation; a gas-liquid separator that separates the refrigerant decompressed by the heat released refrigerant expansion valve into a gaseous refrigerant and a liquid refrigerant; and a bypass circuit that allows part of at least the gaseous refrigerant separated in the gas-liquid separator to flow into a section of the compressor through which the refrigerant being decompressed passes.

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