IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0035678
(2008-02-22)
|
등록번호 |
US-8607855
(2013-12-17)
|
우선권정보 |
EP-07290241 (2007-02-23) |
발명자
/ 주소 |
- Feuerecker, Günther
- Lochmahr, Karl
- Müller, Frank
- Neumeister, Dirk
- Strauβ, Thomas
- Weinbrenner, Marcus
- Obradovich, Richard
- Schlinke, Gunnar
- Schmittheisler, Christophe
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
2 |
초록
▼
The invention relates to an air-conditioning system for a motor-driven vehicle, having a refrigerant circuit (20) with a plurality of heat exchangers (4, 24) through which a refrigerant can be conducted for an exchange of heat with the air which flows through them, with it being possible for the hea
The invention relates to an air-conditioning system for a motor-driven vehicle, having a refrigerant circuit (20) with a plurality of heat exchangers (4, 24) through which a refrigerant can be conducted for an exchange of heat with the air which flows through them, with it being possible for the heat exchangers (4, 24) to be operated as heaters or as evaporators as a function of the operating state of the air-conditioning system, and at least one third heat exchanger (16) is provided in the refrigerant circuit (20), which third heat exchanger (16) serves for an exchange of heat with a coolant circuit (13) which is formed separately from the refrigerant circuit (20). The vehicle can be both a motor vehicle and also a fuel-cell-driven vehicle.
대표청구항
▼
1. An air-conditioning system for a motor-driven vehicle, comprising: a first coolant circuit that includes a first pump and is configured to cool an engine,a second coolant circuit that includes a coolant/refrigerant heat exchanger, a second pump, and a waste heat exchanger, wherein the second cool
1. An air-conditioning system for a motor-driven vehicle, comprising: a first coolant circuit that includes a first pump and is configured to cool an engine,a second coolant circuit that includes a coolant/refrigerant heat exchanger, a second pump, and a waste heat exchanger, wherein the second coolant circuit is further configured to be either separate from or connected to the first coolant circuit depending on a state of a first valve and a state of a second valve, anda refrigerant circuit that includes a plurality of heat exchangers configured to conduct a refrigerant for an exchange of heat with air flowing through the plurality of heat exchangers of the refrigerant circuit and configured to operate as heaters or as evaporators as a function of an operating state of the air-conditioning system,wherein the plurality of heat exchangers of the refrigerant circuit include an interior space heat exchanger, an ambient heat exchanger and the coolant/refrigerant heat exchanger that is configured to exchange heat with the second coolant circuit, andwherein the refrigerant circuit further includes a compressor, and wherein the ambient heat exchanger and the coolant/refrigerant heat exchanger are arranged in series in the refrigerant circuit and are separated from the interior space heat exchanger by an expansion element such that, during a heat operation and in order to absorb heat from the surroundings, refrigerant flows from the compressor, then through the interior space heat exchanger, then through the expansion element, then through the ambient air heat exchanger, and then through the coolant/refrigerant heat exchanger. 2. The air-conditioning system as claimed in claim 1, wherein the refrigerant circuit provides a flow direction reversal for the refrigerant in at least a region of the refrigerant circuit in which the ambient heat exchanger, the coolant/refrigerant heat exchanger and the interior space heat exchanger are arranged. 3. The air-conditioning system as claimed in claim 1, wherein the first coolant circuit is configured to connect to the second coolant circuit such that an exchange of coolant takes place between the first and second coolant circuits. 4. The air-conditioning system as claimed in claim 3, wherein, when the first coolant circuit connects to the second coolant circuit, coolant is configured to flow through a heater that heats the air which passes from the interior space heat exchanger, wherein the heated air is configured to be supplied to an interior space of the vehicle, and wherein the coolant/refrigerator heat exchanger, which serves for the exchange of heat with the second coolant circuit, is configured to be traversed by the coolant, and wherein heat is conducted from the refrigerant circuit to the heater. 5. A method for operating the air-conditioning system as claimed in claim 1, comprising exchanging heat of the refrigerant circuit with the second coolant circuit using the coolant/refrigerant heat exchanger, wherein a heat pumping mode comprises absorbing heat from at least one of cabin waste air and waste heat generated in the vehicle using the waste heat exchanger arranged in the second coolant circuit, conducting the waste heat using coolant to the coolant/refrigerant heat exchanger, and dissipating the heat to the refrigerant in the refrigerant circuit. 6. The method as claimed in claim 5, wherein a cooling mode of the air conditioning system comprises: dissipating heat from the coolant/refrigerant heat exchanger to the coolant as absorbed heat; anddissipating the absorbed heat, using the waste heat exchanger that is arranged in the second coolant circuit, to the environment. 7. The method as claimed in claim 5, wherein a reheat mode of the air conditioning system comprises reheating air that passes from the interior space heat exchanger and is supplied to an interior space of the vehicle by dissipating heat from the coolant/refrigerant heat exchanger to the coolant as absorbed heat and dissipating the absorbed heat via a heater in the first coolant circuit to the air supplied to the interior space. 8. The method as claimed in claim 5, wherein a reheat mode of the air conditioning system comprises: reheating air that passes from the interior space heat exchanger and is supplied to an interior space of the vehicle by heat from the coolant/refrigerant heat exchanger to the coolant as absorbed heat,dissipating the absorbed heat via the waste heat exchanger arranged in the second coolant circuit to the environment; andheating the air supplied to the interior space with a heater that is arranged in the first coolant circuit and uses waste heat of the engine.
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