Title:
ヒートポンプサイクル
Document Type and Number:
Japanese Patent JP4277373
Kind Code:
B2
Abstract:
A heat pump cycle system which can switches cooling operation and heating operation for a compartment includes a first inside heat exchanger and a second inside heat exchanger disposed in an air conditioning case. The first inside heat exchanger is disposed in the air conditioning case at a downstream air side of the second inside heat exchanger, while being arranged in line in a flow direction of refrigerant. The first inside heat exchanger is upstream from the second inside heat exchanger in the flow direction of refrigerant during the heating operation. In the heat pump cycle system, an expansion valve is controlled so that coefficient of performance in each operation becomes approximately maximum. Thus, during the heating operation of the heat pump cycle system, a lower limit temperature of air blown from the inside heat exchangers can be increased so that temperature of air blown into the compartment is increased, while the coefficient of performance is improved.
Inventors:
Yukatsu Ozaki
Shigehide Kimura
Shin Nishida
Tadashi Hotta
Tomohiro Yamaguchi
Shigehide Kimura
Shin Nishida
Tadashi Hotta
Tomohiro Yamaguchi
Application Number:
JP19634999A
Publication Date:
June 10, 2009
Filing Date:
July 09, 1999
Export Citation:
Assignee:
株式会社日本自動車部品総合研究所
株式会社デンソー
株式会社デンソー
International Classes:
F25B1/00; B60H1/00; B60H1/22; B60H1/32; F25B6/04; F25B9/00; F25B13/00; F25B41/06; F25B5/04
Domestic Patent References:
| JP5296580A | ||||
| JP9264622A | ||||
| JP10067224A | ||||
| JP3086620A | ||||
| JP5178068A |
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno
Takahiro Miura
Fumihiro Mizuno