Motor vehicle refrigerant circuit with a refrigeration system circuit and a heat pump circuit

A technology for refrigerant circuits, motor vehicles, applied in the direction of compressors with reversible cycles, refrigerators, refrigeration and liquefaction, etc., can solve the problem of increased heat demand, reduced air heat pump output, increased risk of condenser freezing, etc. problem, to achieve the effect of increasing vehicle travel and reducing electric power consumption
CN102897002AActive Publication Date: 2013-01-30HANON SYST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANON SYST
Publication Date
2013-01-30

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Abstract

The invention relates to a motor vehicle refrigerant circuit provided with a refrigeration system circuit and a heat pump circuit which are used for air conditioning and heating of a motor vehicle, wherein heat pump condenser (4), a refrigeration system and a heat pump evaporator (3), and a chiller (10) in a coolant circuit are configured to serve as extra heat pump evaporators in the heat pump circuit and are in serial connection, and an expansion member (17) is connected with the chiller (10) at a coolant side and disposed in the coolant circuit by serving as a member for heating the coolant.
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Description

technical field

[0001] The invention relates to a motor vehicle refrigerant circuit with a refrigeration system circuit and a heat pump circuit for air conditioning and heating of a motor vehicle. Background technique

[0002] Since the amount of waste heat from the drive engine is no longer sufficient in modern motor vehicles, these vehicles require a supplementary heat source for conditioning the vehicle cabin at relatively low ambient temperatures.

[0003] Various methods of solving this problem are known in the prior art, which relate to systems for heating and also to heat pump circuits of refrigeration systems for the air conditioning of vehicles, which systems and heat pump circuits are usually present in all in the vehicle mentioned above.

[0004] For example, an air-conditioning system for a vehicle realizing interconnection with a heat pump is known from DE 10 200 900 A1. The cooling circuit of the engine is coupled to the heat pump circuit of the refrigeration...

Claims

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