CN204749797U - Liquefaction gas cold energy air conditioner device and passenger train - Google Patents
Liquefaction gas cold energy air conditioner device and passenger train Download PDFInfo
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- CN204749797U CN204749797U CN201520290006.7U CN201520290006U CN204749797U CN 204749797 U CN204749797 U CN 204749797U CN 201520290006 U CN201520290006 U CN 201520290006U CN 204749797 U CN204749797 U CN 204749797U
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Abstract
The utility model provides a liquefaction gas cold energy air conditioner device and passenger train, vaporizer is bathed including vaporization refrigerating system, vaporization refrigerating system including the sky of locating on the gas gas transmission main line including the gas gas transmission main line of intercommunication gas gas holder and engine, liquefaction gas cold energy air conditioner device to the gas cold energy air conditioner device that should liquefy, and liquefaction gas cold energy air conditioner device is still including being used for and emptying the first air supply pipeline of bathing the vaporizer and carrying out the heat exchange. The utility model discloses a liquefaction cold energy air conditioner device is when using, the hot gas flow directly gets into vapourizing unit and liquid gas generation heat exchange through vaporization refrigeration air inlet pipeline, not only realize the vaporization of liquid gas, also make simultaneously the hot gas flow cooling form the cold airflow, thereby reach cryogenic mesh in these cold airflow rethread vaporization refrigeration out wind pipe entering car, this kind of refrigerating method is only through a heat exchange, the cold energy loss is less, the structural style of whole device is also fairly simple simultaneously, reducing manufacturing cost.
Description
Technical field
The utility model relates to vehicle air treatment facility technical field, particularly relates to liquefaction gas cold energy interior environment system and passenger vehicle.
Background technology
Day by day serious along with environmental pollution and energy shock, energy-saving and emission-reduction have become the theme of mankind nowadays society.Especially at automotive field, development energy-efficient, environment-friendly automobiles have become the main direction of studying of each auto vendor.Along with the progress of technology and the lifting of quality of life, automotive air-conditioning system has become the standard configuration system of vehicle.When traditional mounted air conditioner system works, by driven by engine compressor operating, utilize the gasification heat absorption of refrigerant thus produce refrigeration, but during a/c system work, considerably increase the consumption of fuel oil, thus exacerbate environmental pollution, also improve vehicle use cost, therefore, increasing car load and parts producer start to be devoted to develop more energy-conservation a/c system and technology.
Authorization Notice No. is CN201872573U, authorized announcement date is that the Chinese utility model patent of 2011.06.22 discloses a kind of LNG LNGV air-conditioning refrigeration system, the combustion gas gas transmission main line of this refrigeration system is in series with liquified natural gas gasification installation and heat exchanger, the recirculated cooling water pipeline of driving engine passes in heat exchanger, flow to the high-temperature cooling water of heat exchanger and liquefaction gas generation interchange of heat from driving engine and make gas gasification supply engine, cooling water expansion tank reduces and is back to driving engine place and lowers the temperature to driving engine, therefore this gasification installation can be called cooling water expansion tank gasification installation, in addition, the refrigerant fluid pipeline of air-conditioning refrigeration system also passes in heat exchanger, when needs air conditioner refrigerating, valve closing on recirculated cooling water pipeline is made cooling water expansion tank no longer through heat exchanger, and the water pump started on refrigerant fluid pipeline makes refrigerant fluid flow through heat exchanger, so liquid combustion gas and refrigerant fluid generation interchange of heat also make refrigerant fluid lower the temperature, the refrigerant fluid of low temperature absorbs the heat in air and reaches the object of refrigeration.
Although this air-conditioning refrigeration system utilizes liquefaction gas to carry out with the refrigerant fluid of a/c system the object that interchange of heat achieves certain energy-saving and emission-reduction, but, this by realizing in the process of lowering the temperature by refrigerant fluid and air generation interchange of heat again after a generation interchange of heat between liquefaction gas and refrigerant fluid, two-stage energy transfer process causes the loss of cold energy, fully directly do not utilize the cold energy of liquefaction gas completely, still cause certain cold energy waste.
Utility model content
The purpose of this utility model is to provide a kind of liquefaction gas cold energy interior environment system, carries out multiple energy exchange and the problem causing energy dissipation in order to solve prior art; Meanwhile, the utility model additionally provides a kind of passenger vehicle using this liquefaction gas cold energy interior environment system.
Liquefaction gas cold energy interior environment system of the present utility model adopts following technical scheme: liquefaction gas cold energy interior environment system, comprise the combustion gas gas transmission main line being communicated with gas storage tank and driving engine, described liquefaction gas cold energy interior environment system comprises vaporization refrigeration system, described vaporization refrigeration system comprises the sky bath carburetter for making liquid combustion gas vaporize be located at by the first air delivering pipeline connection on combustion gas gas transmission main line, described liquefaction gas cold energy interior environment system also comprises for bathing with sky the first air-supply pipeline that carburetter carries out interchange of heat, described first air-supply pipeline has vaporization refrigeration air inlet pipeline for entering for the thermal current outside Che Nei and/or car and for entering the vaporization refrigeration air outlet pipeline in car for the thermal current entered from described vaporization refrigeration air inlet pipeline after forming cold airflow carrying out interchange of heat with the liquid combustion gas in sky bath carburetter.
Described liquefaction gas cold energy interior environment system also comprises conventional refrigeration, described conventional refrigeration comprises heat-exchanger rig, heat-exchanger rig is communicated with refrigerant circulation circuit, described liquefaction gas cold energy interior environment system also comprise for heat-exchanger rig carry out interchange of heat second air-supply pipeline, described second air-supply pipeline has the refrigeration system air inlet pipeline for entering for the thermal current outside Che Nei and/or car and the refrigeration system air outlet pipeline for entering after forming cold airflow in car carrying out interchange of heat with the refrigerant in heat-exchanger rig for the thermal current entered from described refrigeration system air inlet pipeline, described refrigeration system air inlet pipeline is connected with vaporization refrigeration air inlet pipeline, described refrigeration system air outlet pipeline is connected with vaporization refrigeration air outlet pipeline.
Combustion gas gas transmission main line also bathes carburetter by the second air delivering pipeline with sky and is parallel with water bath carburetor, described water bath carburetor is communicated with recirculated cooling water pipeline, described first air delivering pipeline and the second air delivering pipeline is respectively equipped with the first control cock and the second control cock that pilot piping cut-offs.
Combustion gas gas transmission main line is also communicated with stable-pressure device in the front side of driving engine.
Refrigeration pipe air inlet pipeline and vaporization refrigeration air inlet pipeline are respectively equipped with air suctiton ventilator.
Passenger vehicle of the present utility model adopts following technical scheme: passenger vehicle, comprise liquefaction gas cold energy interior environment system, described liquefaction gas cold energy interior environment system comprises the combustion gas gas transmission main line being communicated with gas storage tank and driving engine, described liquefaction gas cold energy interior environment system comprises vaporization refrigeration system, described vaporization refrigeration system comprises the sky bath carburetter for making liquid combustion gas vaporize be located at by the first air delivering pipeline connection on combustion gas gas transmission main line, empty bath carburetter is communicated with vaporization refrigeration air inlet pipeline for entering for the thermal current outside Che Nei and/or car and for entering the vaporization refrigeration air outlet pipeline in car for the thermal current entered from described vaporization refrigeration air inlet pipeline after forming cold airflow carrying out interchange of heat with the liquid combustion gas in sky bath carburetter.
Described liquefaction gas cold energy interior environment system also comprises conventional refrigeration, described conventional refrigeration comprises heat-exchanger rig, heat-exchanger rig is communicated with refrigerant circulation circuit, heat-exchanger rig is also communicated with the refrigeration system air inlet pipeline for entering for the thermal current outside Che Nei and/or car and the refrigeration system air outlet pipeline for entering after forming cold airflow in car carrying out interchange of heat with the refrigerant in heat-exchanger rig for the thermal current entered from described refrigeration system air inlet pipeline, described refrigeration system air inlet pipeline is connected with vaporization refrigeration air inlet pipeline, described refrigeration system air outlet pipeline is connected with vaporization refrigeration air outlet pipeline.
Combustion gas gas transmission main line also bathes carburetter by the second air delivering pipeline with sky and is parallel with water bath carburetor, described water bath carburetor is communicated with recirculated cooling water pipeline, described first air delivering pipeline and the second air delivering pipeline is respectively equipped with the first control cock and the second control cock that pilot piping cut-offs.
Combustion gas gas transmission main line is also communicated with stable-pressure device in the front side of driving engine.
Refrigeration pipe air inlet pipeline and vaporization refrigeration air inlet pipeline are respectively equipped with air suctiton ventilator.
The sky bath carburetter of liquefaction gas cold energy interior environment system of the present utility model is communicated with vaporization refrigeration air inlet pipeline for entering for the thermal current outside Che Nei and/or car and for entering the vaporization refrigeration air outlet pipeline in car for the thermal current entered from described vaporization refrigeration air inlet pipeline after forming cold airflow carrying out interchange of heat with the liquid combustion gas in sky bath carburetter, in use, thermal current directly enters carburetion device and liquid combustion gas generation interchange of heat by vaporization refrigeration air inlet pipeline, not only realize the vaporization of liquid combustion gas, also make thermal current lower the temperature simultaneously and form cold airflow, these cold airflows again by vaporization refrigeration air outlet pipeline into the car thus reach the object of refrigeration, this refrigeration modes is only through an interchange of heat, cold energy loss is less, the version of whole device is also fairly simple simultaneously, reduce manufacturing cost.
Further, liquefaction gas cold energy interior environment system also comprises conventional refrigeration, when leaking or damaging and need repairing appears in refrigeration system of vaporizing, still can be realized the refrigeration in car by conventional refrigeration, or it is high especially and when being badly in need of rapid refrigeration cool-down at vehicle interior temperature, refrigeration can be realized by conventional refrigeration and vaporization refrigeration system simultaneously, simultaneously, refrigeration system air inlet pipeline is connected with vaporization refrigeration air inlet pipeline, refrigeration system air outlet pipeline is connected with vaporization refrigeration air outlet pipeline, in turn saves pipeline infusion of financial resources like this.
Further, combustion gas gas transmission main line also bathes carburetter by the second air delivering pipeline with sky and is parallel with water bath carburetor, water bath carburetor is communicated with recirculated cooling water pipeline, first pipeline and the second pipeline are respectively equipped with the first control cock and the second control cock that pilot piping cut-offs, like this when not needing refrigeration, the switching of empty bath carburetter and water bath carburetor can be realized, easy to use and flexible by controlling first, second control cock.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the supply air line of passenger vehicle embodiment one of the present utility model;
Fig. 2 is the structure diagram of liquefaction gas cold energy interior environment system embodiment one of the present utility model.
Drawing reference numeral: 1, storage tank; 2, water bath carburetor; 3, empty bath carburetter; 4, buffer tank; 50, excess flow valve; 521, the first control cock; 522, the second control cock; 531, the first pressure maintaining valve; 532, the second pressure maintaining valve; 54, pressure regulating valve; 6, driving engine; 7, traditional air-conditioning system; 70, refrigerant circulation circuit; 71, heat-exchanger rig; 10, conventional refrigeration pipeline; 11, vaporization refrigeration air inlet pipeline; 12, vaporization refrigeration air outlet pipeline; 13, conventional refrigeration air inlet pipeline; 14, conventional refrigeration air outlet pipeline; 101, admission port in car; 102, car external admission mouth; 103, air extractor duct in car; 20, air suctiton ventilator; A, cooling water flow to; B, air flow; C gas-flow to.
Detailed description of the invention
The embodiment one of passenger vehicle of the present utility model: comprise liquefaction gas cold energy interior environment system, this liquefaction gas cold energy interior environment system mainly comprises two parts refrigeration system, first is vaporization refrigeration system, second conventional refrigeration, refrigeration system of wherein vaporizing mainly utilizes liquefaction gas in the process being delivered to driving engine, need the principle of absorbing heat of vaporizing, the cold energy discharged by utilizing liquefaction gas realizes refrigeration, be illustrated in figure 1 the schematic diagram of passenger vehicle supply air line, fuel gas transmission can be burnt to driving engine 6 place by combustion gas gas transmission main line and be supplied to driving engine kinetic energy by liquefaction gas storage tank 1, combustion gas gas transmission main line comprises the first air delivering pipeline and the second air delivering pipeline that are arranged in parallel, first air delivering pipeline connects free bath carburetter i.e. empty bath carburetter 3, second air delivering pipeline is connected with water bath carburetor and water bath carburetor 2, storage tank 1 connects water bath carburetor 2 and driving engine 6 successively by the second air delivering pipeline, empty bath carburetter 3 and driving engine 6 is connected successively by the first air delivering pipeline, wherein, first air delivering pipeline and the second air delivering pipeline are provided with in the front side of vacant carburetter 3 and water-bath gasifier 2 the first control cock 521 and the second control cock 522 controlling air delivering pipeline and cut-off respectively, in the present embodiment, first, second control cock is electromagnetic valve, first air delivering pipeline and the second air delivering pipeline are provided with at the rear side of sky bath carburetter 3 and water bath carburetor 2 stable-pressure device stablizing the gaseous gas air pressure be vaporized after device vaporization respectively, in the present embodiment, stable-pressure device is the first pressure maintaining valve 531 and the second pressure maintaining valve 532 and first, the buffer tank 4 connected between second air delivering pipeline and driving engine, certainly in other embodiments, can only use pressure maintaining valve or buffer tank.Be connected with excess flow valve 50 between first, second air delivering pipeline and storage tank 1, between first, second air delivering pipeline and driving engine 6, be also connected with pressure regulating valve 54.
The vaporization refrigeration system that liquefaction gas cold energy interior environment system comprises mainly utilizes the cold energy of empty bath carburetter 3 place liquefaction gas release when vaporizing to freeze, conventional refrigeration is then utilize refrigerant to become gaseous state from liquid state to discharge cold energy, as shown in Figure 2, liquefaction gas cold energy interior environment system comprises the vaporization refrigeration pipe and conventional refrigeration pipeline that are arranged in parallel, the refrigeration pipe liquefaction gas comprised for bathing in carburetter with sky of wherein vaporizing carries out first of interchange of heat and to blow pipeline, first air-supply pipeline has the vaporization refrigeration air inlet pipeline 11 be positioned on front side of vacant carburetter 3 and the vaporization refrigeration air outlet pipeline 12 be positioned on rear side of empty bath carburetter 3, vaporization refrigeration air inlet pipeline 11 is provided with the air suctiton ventilator 20 for carrying thermal current to sky bath carburetter 3, admission port 101 in the car that vaporization refrigeration air inlet pipeline is communicated with vehicle body respectively, be communicated with the car external admission mouth 102 of car body ft connection, under the effect of air suctiton ventilator 20, the thermal current of vehicle body and/or car body outside can be delivered to empty bath carburetter 3 place and empty liquefaction gas generation interchange of heat of bathing carburetter 3 inside, and make liquefaction gas vaporization heat absorption, thermal current cooling forms cold airflow, in the car that vaporization refrigeration air outlet pipeline 12 is communicated with vehicle body, air extractor duct 103 is communicated with, cold airflow is transported to vehicle body by air extractor duct in car 103, wherein, car external admission mouth place is provided with air blowing control valve, car external admission mouth can be opened or close by air blowing control valve, control the source of thermal current, conventional refrigeration comprises conventional refrigeration pipeline 10, heat-exchanger rig 71 is provided with in conventional refrigeration pipeline 10, heat-exchanger rig 71 is communicated with refrigerant circulation circuit 70, refrigerant circulation circuit 70 connects traditional air-conditioning system 7, conventional refrigeration also comprise for refrigerant carry out interchange of heat second air-supply pipeline, second air-supply pipeline comprises the conventional refrigeration air inlet pipeline 13 be positioned on front side of heat-exchanger rig 71 and the conventional refrigeration air outlet pipeline 14 be positioned on rear side of heat-exchanger rig 71, conventional refrigeration air inlet pipeline 13 is also provided with air suctiton ventilator and for heat-exchanger rig 71 direction exhausting, conventional refrigeration air inlet pipeline is also communicated with admission port 101 and car external admission mouth 102 in car respectively, under the effect of air suctiton ventilator, the thermal current of vehicle body and car body outside can be delivered to the liquid refrigerants generation interchange of heat of heat-exchanger rig 71 place and heat-exchanger rig 71 inside, and make liquid refrigerants vaporization heat absorption, thermal current cooling forms cold airflow, conventional refrigeration air outlet pipeline 14 is communicated with air extractor duct in car 103, cold airflow is transported to vehicle body by air extractor duct in car 103, in the present embodiment, heat-exchanger rig 71 is evaporator, in car, air extractor duct 103 has both direction, cold airflow can be led to passenger accommodation and driving compartment simultaneously.
Liquefaction gas cold energy interior environment system of the present utility model has two kinds of mode of operations, the first mode of operation is when not needing air conditioner refrigerating, first control cock 521 is closed, second control cock 522 is opened, high-temperature cooling water in the cooling water circulation loop of engine-cooling system is delivered to water bath carburetor 2 place, by the high temperature of cooling water expansion tank, the liquefaction gas in water bath carburetor 2 is vaporized, High-temperature cooling water for cooling circular flow postbacks motivation place to engine cooling, the liquefaction gas be vaporized is delivered to the burning of driving engine place by the second air delivering pipeline, the second mode of operation refers to that air-conditioning needs the situation of refrigeration, first control cock 521 is opened, second control cock 522 is closed, liquefaction gas is delivered to driving engine by the first air delivering pipeline through empty bath carburetter 3, now, air suctiton ventilator 20 on vaporization refrigeration air inlet pipeline 11 works and thermal current is delivered to empty bath carburetter 3 place and carry out heat exchange with empty liquefaction gas of bathing in carburetter 3, liquefaction gas heat absorption is vaporized and is transported to the burning of driving engine place, thermal current is lowered the temperature and forms cold airflow, and be delivered to realization refrigeration in car by vaporization refrigeration air outlet pipeline 12, so just do not need traditional a/c system work refrigeration, reduce the consumption of combustion gas or fuel oil or electric energy, and it is very high at vehicle interior temperature, need in car during down quench, the air suctiton ventilator on vaporization refrigeration air inlet pipeline and conventional refrigeration air inlet pipeline can be opened again simultaneously, use traditional air-conditioning system 7 and vaporization refrigeration system to freeze simultaneously, the down quench in car can be realized, certainly, break down in vaporization refrigeration system, when vaporization refrigeration pipe occurs leaking damaged, traditional air-conditioning system can be adopted to freeze, be unlikely to the situation occurring cannot freezing in car.
Passenger vehicle of the present utility model uses liquefaction gas cold energy interior environment system to utilize the cold energy of liquefaction gas to freeze, directly carry out interchange of heat by thermal current and liquefaction gas and realize freezing, take full advantage of the cold energy of liquefaction gas, farthest reduce cold energy loss, vaporization refrigeration system and conventional refrigeration is comprised with timer, and can freely switch between two cover systems, can unrestricted choice be carried out, easy to use and flexible according to different situations.
The embodiment two of passenger vehicle of the present utility model: be with the difference of embodiment one, heat-exchanger rig adopts carburetter.
The embodiment three of passenger vehicle of the present utility model: be with the difference of embodiment one, heat-exchanger rig is the heat exchange case that heat exchange coil is formed.
The embodiment of liquefaction gas cold energy interior environment system of the present utility model: as shown in Figure 1-2, its concrete structure is identical with the structure of the liquefaction gas cold energy interior environment system in above-mentioned passenger vehicle embodiment, repeats no more herein.
Claims (10)
1. liquefaction gas cold energy interior environment system, comprise the combustion gas gas transmission main line being communicated with gas storage tank and driving engine, it is characterized in that, described liquefaction gas cold energy interior environment system comprises vaporization refrigeration system, described vaporization refrigeration system comprises the sky bath carburetter for making liquid combustion gas vaporize be located at by the first air delivering pipeline connection on combustion gas gas transmission main line, described liquefaction gas cold energy interior environment system also comprises for bathing with sky the first air-supply pipeline that carburetter carries out interchange of heat, described first air-supply pipeline has vaporization refrigeration air inlet pipeline for entering for the thermal current outside Che Nei and/or car and for entering the vaporization refrigeration air outlet pipeline in car for the thermal current entered from described vaporization refrigeration air inlet pipeline after forming cold airflow carrying out interchange of heat with the liquid combustion gas in sky bath carburetter.
2. liquefaction gas cold energy interior environment system according to claim 1, it is characterized in that, described liquefaction gas cold energy interior environment system also comprises conventional refrigeration, described conventional refrigeration comprises heat-exchanger rig, heat-exchanger rig is communicated with refrigerant circulation circuit, described liquefaction gas cold energy interior environment system also comprise for heat-exchanger rig carry out interchange of heat second air-supply pipeline, described second air-supply pipeline has the refrigeration system air inlet pipeline for entering for the thermal current outside Che Nei and/or car and the refrigeration system air outlet pipeline for entering after forming cold airflow in car carrying out interchange of heat with the refrigerant in heat-exchanger rig for the thermal current entered from described refrigeration system air inlet pipeline, described refrigeration system air inlet pipeline is connected with vaporization refrigeration air inlet pipeline, described refrigeration system air outlet pipeline is connected with vaporization refrigeration air outlet pipeline.
3. liquefaction gas cold energy interior environment system according to claim 1 and 2, it is characterized in that, combustion gas gas transmission main line also bathes carburetter by the second air delivering pipeline with sky and is parallel with water bath carburetor, described water bath carburetor is communicated with recirculated cooling water pipeline, described first air delivering pipeline and the second air delivering pipeline is respectively equipped with the first control cock and the second control cock that pilot piping cut-offs.
4. liquefaction gas cold energy interior environment system according to claim 3, is characterized in that, combustion gas gas transmission main line is also communicated with stable-pressure device in the front side of driving engine.
5. liquefaction gas cold energy interior environment system according to claim 4, is characterized in that, refrigeration pipe air inlet pipeline and vaporization refrigeration air inlet pipeline are respectively equipped with air suctiton ventilator.
6. passenger vehicle, comprise liquefaction gas cold energy interior environment system, described liquefaction gas cold energy interior environment system comprises the combustion gas gas transmission main line being communicated with gas storage tank and driving engine, it is characterized in that, described liquefaction gas cold energy interior environment system comprises vaporization refrigeration system, described vaporization refrigeration system comprises the sky bath carburetter for making liquid combustion gas vaporize be located at by the first air delivering pipeline connection on combustion gas gas transmission main line, empty bath carburetter is communicated with vaporization refrigeration air inlet pipeline for entering for the thermal current outside Che Nei and/or car and for entering the vaporization refrigeration air outlet pipeline in car for the thermal current entered from described vaporization refrigeration air inlet pipeline after forming cold airflow carrying out interchange of heat with the liquid combustion gas in sky bath carburetter.
7. passenger vehicle according to claim 6, it is characterized in that, described liquefaction gas cold energy interior environment system also comprises conventional refrigeration, described conventional refrigeration comprises heat-exchanger rig, heat-exchanger rig is communicated with refrigerant circulation circuit, heat-exchanger rig is also communicated with the refrigeration system air inlet pipeline for entering for the thermal current outside Che Nei and/or car and the refrigeration system air outlet pipeline for entering after forming cold airflow in car carrying out interchange of heat with the refrigerant in heat-exchanger rig for the thermal current entered from described refrigeration system air inlet pipeline, described refrigeration system air inlet pipeline is connected with vaporization refrigeration air inlet pipeline, described refrigeration system air outlet pipeline is connected with vaporization refrigeration air outlet pipeline.
8. the passenger vehicle according to claim 6 or 7, it is characterized in that, combustion gas gas transmission main line also bathes carburetter by the second air delivering pipeline with sky and is parallel with water bath carburetor, described water bath carburetor is communicated with recirculated cooling water pipeline, described first air delivering pipeline and the second air delivering pipeline is respectively equipped with the first control cock and the second control cock that pilot piping cut-offs.
9. passenger vehicle according to claim 8, is characterized in that, combustion gas gas transmission main line is also communicated with stable-pressure device in the front side of driving engine.
10. passenger vehicle according to claim 9, is characterized in that, refrigeration pipe air inlet pipeline and vaporization refrigeration air inlet pipeline are respectively equipped with air suctiton ventilator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290006.7U CN204749797U (en) | 2015-05-07 | 2015-05-07 | Liquefaction gas cold energy air conditioner device and passenger train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520290006.7U CN204749797U (en) | 2015-05-07 | 2015-05-07 | Liquefaction gas cold energy air conditioner device and passenger train |
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| CN204749797U true CN204749797U (en) | 2015-11-11 |
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| CN201520290006.7U Withdrawn - After Issue CN204749797U (en) | 2015-05-07 | 2015-05-07 | Liquefaction gas cold energy air conditioner device and passenger train |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859403A (en) * | 2015-05-07 | 2015-08-26 | 郑州宇通客车股份有限公司 | Air-conditioning unit utilizing cold energy of liquefied fuel gas and car |
-
2015
- 2015-05-07 CN CN201520290006.7U patent/CN204749797U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104859403A (en) * | 2015-05-07 | 2015-08-26 | 郑州宇通客车股份有限公司 | Air-conditioning unit utilizing cold energy of liquefied fuel gas and car |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151111 Effective date of abandoning: 20170804 |
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| AV01 | Patent right actively abandoned |