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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 10752092 B1

PDFFull Text
Date of Patent:
Aug. 25, 2020

Filed:

Mar. 15, 2016

Vehicular heat pump system

Applicant:

Hanon Systems, Daejeon, KR;

Inventors:

Young Ho Choi, Daejeon, KR;

Chan Joo Maeng, Daejeon, KR;

Seung Ho Lee, Daejeon, KR;

Jung Jae Lee, Daejeon, KR;

Hak Kyu Kim, Daejeon, KR;

Sung Ho Kang, Daejeon, KR;

Jae Min Lee, Daejeon, KR;

Assignee:

HANON SYSTEMS, Daejeon, KR;

Attorney:

Dickinson Wright PLLC

Primary Examiner:

Paul Alvare

Assistant Examiner:

Kirstin U Oswald

Int. Cl.
CPC ...
B60H 1/32 (2006.01); B60H 1/00 (2006.01); B60H 1/22 (2006.01); B60H 1/14 (2006.01); F25B 40/00 (2006.01); F25B 41/04 (2006.01); F25B 5/04 (2006.01); F25B 47/02 (2006.01);
U.S. Cl.
CPC ...
B60H 1/3213 (2013.01); B60H 1/00907 (2013.01); B60H 1/00921 (2013.01); B60H 1/143 (2013.01); B60H 1/22 (2013.01); F25B 5/04 (2013.01); F25B 40/00 (2013.01); F25B 41/04 (2013.01); F25B 47/022 (2013.01); B60H 2001/00949 (2013.01); F25B 2400/0409 (2013.01); F25B 2400/0411 (2013.01);
Abstract

The present invention relates to a vehicular heat pump system and, more specifically, to a vehicular heat pump system having a chiller for heat exchanging cooling water circulating through vehicle electrical equipment (), a refrigerant discharged from an outdoor heat exchanger so as to flow through a first bypass line (R), and a refrigerant discharged from an indoor heat exchanger, thereby: in the air conditioner mode, increasing sub-cool while the refrigerant discharged from the indoor heat exchanger is first cooled at the chiller and then is second cooled at the outdoor heat exchanger such that the flow rate of refrigerants increases and cooling performance is improved; in the heat pump mode, allowing the refrigerant discharged from the indoor heat exchanger to ensure sub-cool in the chiller so as to increase the flow rate of refrigerants, and allowing the refrigerant discharged from the outdoor heat exchanger to receive an additional heating source from the chiller so as to improve heating performance; and, even in the defrost mode carried out because of frost on the outdoor heat exchanger, ensuring an additional heating source in the chiller so as to minimize a change in indoor discharge temperature because of a lack of heating sources.

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