CN104006583A - Heat pump system and air supplementing method of heat pump system - Google Patents
Heat pump system and air supplementing method of heat pump system Download PDFInfo
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- CN104006583A CN104006583A CN201410259551.XA CN201410259551A CN104006583A CN 104006583 A CN104006583 A CN 104006583A CN 201410259551 A CN201410259551 A CN 201410259551A CN 104006583 A CN104006583 A CN 104006583A
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- heat exchanger
- heat pump
- compressor
- valve
- expansion
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 title claims abstract description 8
- 239000003507 refrigerant Substances 0.000 claims abstract description 35
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 230000008676 import Effects 0.000 claims description 20
- 239000012808 vapor phase Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 10
- 239000013589 supplement Substances 0.000 claims 1
- 239000007791 liquid phase Substances 0.000 abstract description 12
- 230000009467 reduction Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 4
- 239000012071 phase Substances 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000000717 retained effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention provides a heat pump system and a gas supplementing method of the heat pump system, the heat pump system comprises a compressor, a first heat exchanger and a second heat exchanger which are communicated with the compressor, wherein the compressor, the first heat exchanger and the second heat exchanger are connected in series to form a passage, the first heat exchanger is communicated with the second heat exchanger through a flash evaporator, and the heat pump system also comprises: and the air supply outlet of the flash evaporator is connected with the air supply inlet of the compressor through the expansion flow divider, the inlet of the expansion flow divider is connected with the air supply outlet of the flash evaporator, and the outlet of the expansion flow divider is connected with the air supply inlet of the compressor. Thus, the gas-phase refrigerant flowing at high speed suddenly expands in volume and reduces speed in the expansion flow divider, so that not only can the liquid-phase refrigerant carried in the gas-phase refrigerant be partially flashed into gas, but also the liquid-phase refrigerant can be retained under the action of gravity due to the reduction of speed, and the gas-liquid separation of the refrigerant is realized.
Description
Technical field
The present invention relates to air-conditioning technical field, more specifically, relate to the supplementing method for air of a kind of heat pump and heat pump.
Background technology
It is a kind of technological means conventional in current hot pump in low temp system that filling increases enthalpy technology, and it can improve, improve the unit performance of heat pump under low temperature harsh weather.
As shown in Figure 1, it is that flash vessel 4 is installed in heat pump that filling of the prior art increases enthalpy technology, be arranged between First Heat Exchanger 2 and the second heat exchanger 3 by flash vessel 4, and the tonifying Qi outlet of flash vessel 4 and the tonifying Qi import of compressor 1 are connected, make cold-producing medium therein " shwoot " go out vapor phase refrigerant, then by increasing enthalpy in flash vessel Base top contact vapor phase refrigerant for filling to compressor.Using on the heat pump of invariable frequency compressor, by selecting suitable flash vessel, mating refrigerant perfused amount accurately, can ensure that compressor can not produce " band liquid " phenomenon in the time that filling increases enthalpy.
But; using in the source pump of frequency-changeable compressor; because frequency-changeable compressor can exist the operation of higher frequency conventionally; the circulating mass of refrigerant of system can be more a lot of than generally exceeding; at this time the relative volume of flash vessel " has diminished "; liquid level rises, and adds the disturbance of gushing of high speed cold-producing medium, easily causes " band liquid " phenomenon of filling.
Because current a lot of compressors do not allow long-time band liquid in the process of air-breathing or filling to carry out, because liquid refrigerant easily causes the danger of " liquid hammer " to compressor, affect the service life of compressor, improve to avoid occurring this " band liquid " phenomenon therefore need to increase enthalpy technology to this filling of the prior art.
Summary of the invention
The present invention aims to provide the supplementing method for air of a kind of heat pump and heat pump, easily produces the problem of " band liquid " phenomenon to solve tonifying Qi increasing enthalpy technology of the prior art.
For solving the problems of the technologies described above, according to an aspect of the present invention, a kind of heat pump is provided, the First Heat Exchanger that comprises compressor and be communicated with compressor and the second heat exchanger, wherein, compressor, between First Heat Exchanger and the second heat exchanger, being connected into path and First Heat Exchanger is communicated with by flash vessel with the second heat exchanger, heat pump also comprises: expansion current divider, the tonifying Qi outlet of flash vessel is connected by expansion current divider with the tonifying Qi import of compressor, wherein, the import of expansion current divider is connected with the tonifying Qi of flash vessel outlet, the outlet of expansion current divider is connected with the tonifying Qi import of compressor.
Further, expansion current divider is muffler or oil eliminator or filter.
Further, heat pump also comprises: cross valve, and the first valve port of cross valve is connected with the outlet of compressor, and the second valve port of cross valve is connected with the import of compressor; The 3rd valve port of cross valve is connected with the first opening of First Heat Exchanger, and the 4th valve port of cross valve is connected with the first opening of the second heat exchanger; Wherein, the second opening of First Heat Exchanger and the second opening of the second heat exchanger are communicated with by flash vessel.
Further, heat pump also comprises: the first control valve, and one end of the first control valve is connected with expansion current divider, and the other end of the first control valve is connected with the tonifying Qi import of compressor.
Further, the first control valve is magnetic valve.
Further, heat pump also comprises: the first expansion valve, and one end of the first expansion valve is connected with the second heat exchanger, and the other end of the first expansion valve is connected with flash vessel; The second expansion valve, one end of the second expansion valve is connected with First Heat Exchanger, and the other end of the second expansion valve is connected with flash vessel.
Further, heat pump also comprises: the first filter, and the first filter is arranged between the first expansion valve and the second heat exchanger, and/or between the first expansion valve and flash vessel; The second filter, the second filter is arranged between the second expansion valve and First Heat Exchanger, and/or between the second expansion valve and flash vessel.
Further, the outlet of expansion current divider is higher than the import of expansion current divider.
Further, heat pump also comprises: fluid reservoir, and one end of fluid reservoir is communicated with First Heat Exchanger, and the other end of fluid reservoir is communicated with the second heat exchanger.
According to another aspect of the present invention, provide a kind of supplementing method for air of heat pump, having comprised: the vapor phase refrigerant flowing out from flash vessel has been introduced in expansion current divider to remove the liquid in vapor phase refrigerant; The vapor phase refrigerant flowing out from expansion current divider is introduced to compressor with the gas in make up compressor.
Heat pump in the present invention is provided with expansion current divider between flash vessel and compressor, this expansion current divider be a kind of space expand suddenly strengthen parts, like this, swiftly flowing vapor phase refrigerant can be in this space volumetric expansion suddenly, Speed Reduction, and then not only can make the liquid phase refrigerant part of carrying in vapor phase refrigerant flash into gas, can also make liquid phase refrigerant because of under Speed Reduction is detained under the effect of gravity, thereby realize the gas of cold-producing medium, liquid separates, avoided occurring the imagination of " band liquid " in compressor tonifying Qi process, ensure the reliability to compressor tonifying Qi.
Brief description of the drawings
The accompanying drawing that forms the application's a part is used to provide a further understanding of the present invention, and schematic description and description of the present invention is used for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 has schematically shown the schematic diagram of heat pump of the prior art; And
Fig. 2 has schematically shown the schematic diagram of heat pump in the present invention.
Reference numeral in figure: 1, compressor; 2, First Heat Exchanger; 3, the second heat exchanger; 4, flash vessel; 10, compressor; 20, First Heat Exchanger; 30, the second heat exchanger; 40, flash vessel; 50, expansion current divider; 60, cross valve; 61, the first valve port; 62, the second valve port; 63, the 3rd valve port; 64, the 4th valve port; 71, the first control valve; 72, the first expansion valve; 73, the second expansion valve; 81, the first filter; 82, the second filter.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
One aspect of the present invention, a kind of heat pump is provided, please refer to Fig. 2, the First Heat Exchanger 20 that comprises compressor 10 and be communicated with compressor 10 and the second heat exchanger 30, wherein, compressor 10, between First Heat Exchanger 20 and the second heat exchanger 30, be connected into path, and First Heat Exchanger 20 is communicated with by flash vessel 40 with the second heat exchanger 30, heat pump also comprises: expansion current divider 50, the tonifying Qi outlet of flash vessel 40 is connected by expansion current divider 50 with the tonifying Qi import of compressor 10, wherein, the import of expansion current divider 50 is connected with the tonifying Qi outlet of flash vessel 40, the outlet of expansion current divider 50 is connected with the tonifying Qi import of compressor 10.
Heat pump in the present invention is provided with expansion current divider 50 between flash vessel 40 and compressor 10, this expansion current divider 50 is a kind of space parts that strengthen that expand suddenly, like this, swiftly flowing vapor phase refrigerant can be in this space volumetric expansion suddenly, Speed Reduction, and then not only can make the liquid phase refrigerant part of carrying in vapor phase refrigerant flash into gas, can also make liquid phase refrigerant because of under Speed Reduction is detained under the effect of gravity, thereby realize the gas of cold-producing medium, liquid separates, avoided occurring the imagination of " band liquid " in compressor tonifying Qi process, ensure the reliability to compressor tonifying Qi.
Preferably, expansion current divider 50 is muffler or oil eliminator or filter.In the time electing this expansion current divider 50 as muffler, in can making gas phase refrigerator with liquid realize noise reduction in this muffler, reduce its flow velocity, make liquid phase refrigerant because the effect of gravity is back in flash vessel on the one hand, make on the other hand Partial Liquid Phase cold-producing medium flash into vapor phase refrigerant and enter subsequently in compressor, gas, the liquid of so just having realized cold-producing medium separate.In the time selecting oil eliminator as expansion current divider 50 in the application, this oil eliminator also can be realized with same principle gas, the liquid separation of cold-producing medium, and, in oil eliminator, also there are the parts such as filter screen, these parts can stop liquid phase refrigerant get off, and then more effectively realize gas, the liquid separation of cold-producing medium.
Preferably, heat pump also comprises: cross valve 60, and the first valve port 61 of cross valve 60 is connected with the outlet of compressor 10, and the second valve port 62 of cross valve 60 is connected with the import of compressor 10; The 3rd valve port 63 of cross valve 60 is connected with the first opening of First Heat Exchanger 20, and the 4th valve port 64 of cross valve 60 is connected with the first opening of the second heat exchanger 30; Wherein, the second opening of First Heat Exchanger 20 is communicated with by flash vessel 40 with the second opening of the second heat exchanger 30.
The present invention, by controlling cross valve, can realize the refrigeration of this heat pump or the effect heating more easily.When the used time of doing that needs are realized refrigeration, cold-producing medium in First Heat Exchanger 20 absorbs heat and becomes vapor phase refrigerant from atmosphere, this cold-producing medium is entered after compressing in compressor and is entered by cross valve 60 again and flow in the second heat exchanger 30 by cross valve 60, this cold-producing medium dispels the heat and becomes liquid phase refrigerant in the second heat exchanger 30, this liquid phase refrigerant flows in First Heat Exchanger 20 again from the second heat exchanger 30, and so continuous circulation realizes process of refrigerastion.The process that heats of this heat pump is identical with the principle of above-mentioned process of refrigerastion, is only that the flow direction of cold-producing medium is contrary.In this application, be connected with the import of compressor 10 by the first valve port 61 that makes cross valve 60, the second valve port 62 is connected with the outlet of compressor 10, can realize the circulation compression of cold-producing medium, and then improves the operating efficiency of compressor 10.
Preferably, heat pump also comprises: one end of the first control valve 71, the first control valves 71 is connected with expansion current divider 50, and the other end of the first control valve 71 is connected with the tonifying Qi import of compressor 10.The present invention can control the tonifying Qi entering in compressor 10 according to actual conditions effectively by the first control valve 71 is set.
Preferably, the first control valve 71 is magnetic valve.This magnetic valve increases the size of enthalpy for controlling the tonifying Qi of this heat pump
Preferably, heat pump also comprises: one end of the first expansion valve 72, the first expansion valves 72 is connected with the second heat exchanger 30, and the other end of the first expansion valve 72 is connected with flash vessel 40; One end of the second expansion valve 73, the second expansion valves 73 is connected with First Heat Exchanger 20, and the other end of the second expansion valve 73 is connected with flash vessel 40.The present invention can control the cold-producing medium of circulation between the second heat exchanger 30 and flash vessel 40 effectively by the first expansion valve 72 is set, and can more effectively control the cold-producing medium of circulation between First Heat Exchanger 20 and flash vessel 40 by the second expansion valve 73 is set.Expansion valve is changed and is carried out by-pass valve control flow by the degree of superheat of First Heat Exchanger 20 or the second heat exchanger 30 ends, prevents that the phenomenon of area underutilization and engine knock from appearring in First Heat Exchanger 20 or the second heat exchanger 30.
Preferably, heat pump also comprises: the first filter 81, the first filters 81 are arranged between the first expansion valve 72 and the second heat exchanger 30, and/or between the first expansion valve 72 and flash vessel 40; The second filter 82, the second filters 82 are arranged between the second expansion valve 73 and First Heat Exchanger 20, and/or between the second expansion valve 73 and flash vessel 40.The application is by arranging the first filter 81 and the second filter 82 can be processed the impurity in cold-producing medium.Preferably, the second heat exchanger 30 is fin the second heat exchanger.
Preferably, the outlet of expansion current divider 50 is higher than the import of expansion current divider 50.Can ensure that like this liquid phase refrigerant is back in flash vessel effectively, and can not be gathered in this expansion current divider 50.
Preferably, heat pump also comprises: fluid reservoir, and one end of fluid reservoir is communicated with First Heat Exchanger 20, and the other end of fluid reservoir is communicated with the second heat exchanger 30.Because the internal volume of First Heat Exchanger 20 and the second heat exchanger 30 differs larger, best refrigerant perfused amount difference under refrigeration and heating mode is also larger, so, the internal circulating load of between First Heat Exchanger 20 and the second heat exchanger 30, fluid reservoir being installed and can regulating more easily cold-producing medium.
Another aspect of the present invention, provides a kind of supplementing method for air of heat pump, comprising: the vapor phase refrigerant flowing out from flash vessel is introduced in expansion current divider to remove the liquid in vapor phase refrigerant; The vapor phase refrigerant flowing out from expansion current divider is introduced to compressor with the gas in make up compressor.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a heat pump, the First Heat Exchanger (20) and the second heat exchanger (30) that comprise compressor (10) and be communicated with described compressor (10), wherein, between described compressor (10), described First Heat Exchanger (20) and described the second heat exchanger (30), being connected into path and described First Heat Exchanger (20) is communicated with by flash vessel (40) with described the second heat exchanger (30), it is characterized in that, described heat pump also comprises:
Expansion current divider (50), the tonifying Qi outlet of described flash vessel (40) is connected by described expansion current divider (50) with the tonifying Qi import of described compressor (10), wherein, the import of described expansion current divider (50) is connected with the tonifying Qi outlet of described flash vessel (40), and the outlet of described expansion current divider (50) is connected with the tonifying Qi import of described compressor (10).
2. heat pump according to claim 1, is characterized in that, described expansion current divider (50) is muffler or oil eliminator or filter.
3. heat pump according to claim 1, is characterized in that, described heat pump also comprises:
Cross valve (60), first valve port (61) of described cross valve (60) is connected with the outlet of described compressor (10), and second valve port (62) of described cross valve (60) is connected with the import of described compressor (10); The 3rd valve port (63) of described cross valve (60) is connected with the first opening of described First Heat Exchanger (20), and the 4th valve port (64) of described cross valve (60) is connected with the first opening of described the second heat exchanger (30); Wherein, the second opening of described First Heat Exchanger (20) is communicated with by described flash vessel (40) with the second opening of described the second heat exchanger (30).
4. heat pump according to claim 1, is characterized in that, described heat pump also comprises:
The first control valve (71), one end of described the first control valve (71) is connected with described expansion current divider (50), and the other end of described the first control valve (71) is connected with the tonifying Qi import of described compressor (10).
5. heat pump according to claim 4, is characterized in that, described the first control valve (71) is magnetic valve.
6. heat pump according to claim 1, is characterized in that, described heat pump also comprises:
The first expansion valve (72), one end of described the first expansion valve (72) is connected with described the second heat exchanger (30), and the other end of described the first expansion valve (72) is connected with described flash vessel (40);
The second expansion valve (73), one end of described the second expansion valve (73) is connected with described First Heat Exchanger (20), and the other end of described the second expansion valve (73) is connected with described flash vessel (40).
7. heat pump according to claim 6, is characterized in that, described heat pump also comprises:
The first filter (81), described the first filter (81) is arranged between described the first expansion valve (72) and described the second heat exchanger (30), and/or between described the first expansion valve (72) and described flash vessel (40);
The second filter (82), described the second filter (82) is arranged between described the second expansion valve (73) and described First Heat Exchanger (20), and/or between described the second expansion valve (73) and described flash vessel (40).
8. heat pump according to claim 1, is characterized in that, the outlet of described expansion current divider (50) is higher than the import of described expansion current divider (50).
9. heat pump according to claim 1, is characterized in that, described heat pump also comprises:
Fluid reservoir, one end of described fluid reservoir is communicated with described First Heat Exchanger (20), and the other end of described fluid reservoir is communicated with described the second heat exchanger (30).
10. a supplementing method for air for heat pump, is characterized in that, comprising:
The vapor phase refrigerant flowing out from flash vessel is introduced in expansion current divider to remove the liquid in described vapor phase refrigerant;
The vapor phase refrigerant flowing out from expansion current divider is introduced to compressor to supplement the gas in described compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259551.XA CN104006583A (en) | 2014-06-11 | 2014-06-11 | Heat pump system and air supplementing method of heat pump system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410259551.XA CN104006583A (en) | 2014-06-11 | 2014-06-11 | Heat pump system and air supplementing method of heat pump system |
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| CN104006583A true CN104006583A (en) | 2014-08-27 |
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| CN201410259551.XA Pending CN104006583A (en) | 2014-06-11 | 2014-06-11 | Heat pump system and air supplementing method of heat pump system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913558A (en) * | 2015-06-08 | 2015-09-16 | 珠海格力电器股份有限公司 | Control method of two-stage enthalpy-increasing compressor |
| CN105387644A (en) * | 2015-12-02 | 2016-03-09 | 重庆美的通用制冷设备有限公司 | Water chilling unit and control method thereof |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing air conditioning system capable of preventing refrigerant from flowing back and control method thereof |
| CN106969556A (en) * | 2016-12-31 | 2017-07-21 | 广州市粤联水产制冷工程有限公司 | A kind of flash type economizer and cooling cycle system |
| CN108278784A (en) * | 2017-12-06 | 2018-07-13 | 上海交通大学 | A kind of heat pump heat distribution system becoming storage solar energy using heat-storage medium water phase |
| CN109591545A (en) * | 2018-10-31 | 2019-04-09 | 上海爱斯达克汽车空调系统有限公司 | Gas-supplying enthalpy-increasing heat pump system, the vehicles, method with more mouthfuls of heating power expansion valves of throttling |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736555Y (en) * | 2004-08-19 | 2005-10-26 | 加西贝拉压缩机有限公司 | Air sucking silencer for compressor |
| CN102165276A (en) * | 2008-09-29 | 2011-08-24 | 开利公司 | Flash tank economizer cycle control |
| CN102997514A (en) * | 2011-09-09 | 2013-03-27 | 常州晶冷工业制冷设备有限公司 | Water-cooled type low-temperature refrigerant compressor unit with economizer and silencer |
| CN103363738A (en) * | 2012-03-31 | 2013-10-23 | 珠海格力电器股份有限公司 | Flash tank and air conditioning system with same |
| CN203893511U (en) * | 2014-06-11 | 2014-10-22 | 珠海格力电器股份有限公司 | Heat pump system |
-
2014
- 2014-06-11 CN CN201410259551.XA patent/CN104006583A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2736555Y (en) * | 2004-08-19 | 2005-10-26 | 加西贝拉压缩机有限公司 | Air sucking silencer for compressor |
| CN102165276A (en) * | 2008-09-29 | 2011-08-24 | 开利公司 | Flash tank economizer cycle control |
| CN102997514A (en) * | 2011-09-09 | 2013-03-27 | 常州晶冷工业制冷设备有限公司 | Water-cooled type low-temperature refrigerant compressor unit with economizer and silencer |
| CN103363738A (en) * | 2012-03-31 | 2013-10-23 | 珠海格力电器股份有限公司 | Flash tank and air conditioning system with same |
| CN203893511U (en) * | 2014-06-11 | 2014-10-22 | 珠海格力电器股份有限公司 | Heat pump system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913558A (en) * | 2015-06-08 | 2015-09-16 | 珠海格力电器股份有限公司 | Control method of two-stage enthalpy-increasing compressor |
| CN105387644A (en) * | 2015-12-02 | 2016-03-09 | 重庆美的通用制冷设备有限公司 | Water chilling unit and control method thereof |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing air conditioning system capable of preventing refrigerant from flowing back and control method thereof |
| CN106969556A (en) * | 2016-12-31 | 2017-07-21 | 广州市粤联水产制冷工程有限公司 | A kind of flash type economizer and cooling cycle system |
| CN108278784A (en) * | 2017-12-06 | 2018-07-13 | 上海交通大学 | A kind of heat pump heat distribution system becoming storage solar energy using heat-storage medium water phase |
| CN109591545A (en) * | 2018-10-31 | 2019-04-09 | 上海爱斯达克汽车空调系统有限公司 | Gas-supplying enthalpy-increasing heat pump system, the vehicles, method with more mouthfuls of heating power expansion valves of throttling |
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Application publication date: 20140827 |