CN103147886A - Heat exchanger for LPI vehicle - Google Patents
Heat exchanger for LPI vehicle Download PDFInfo
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- CN103147886A CN103147886A CN2012102250214A CN201210225021A CN103147886A CN 103147886 A CN103147886 A CN 103147886A CN 2012102250214 A CN2012102250214 A CN 2012102250214A CN 201210225021 A CN201210225021 A CN 201210225021A CN 103147886 A CN103147886 A CN 103147886A
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- China
- Prior art keywords
- connecting pipeline
- thermal radiation
- radiation part
- import
- outlet
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M31/00—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture
- F02M31/20—Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture for cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
- F02M21/0203—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels characterised by the type of gaseous fuel
- F02M21/0209—Hydrocarbon fuels, e.g. methane or acetylene
- F02M21/0212—Hydrocarbon fuels, e.g. methane or acetylene comprising at least 3 C-Atoms, e.g. liquefied petroleum gas [LPG], propane or butane
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
- F28D9/0043—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
- F28D9/005—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
- F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
A Heat exchanger for LPI vehicle. The heat exchanger may include: a heat radiating portion provided with first, second, and third connecting lines formed by stacking a plurality of plates, and adapted to receive first, second, and third operating fluids respectively into the first, second, and third connecting lines, the first, second, and third operating fluids exchanging heat with each other during passing through the first, second, and third connecting lines and the first, second, and third operating fluids supplied to the first, second, and third connecting lines not being mixed with each other and being circulated; first, second, and third inlets connected respectively to the first, second, and third connecting lines so as to supply the first, second, and third operating fluids respectively to the first, second, and third connecting lines; and first, second, and third outlets connected respectively to the first, second, and third connecting lines.
Description
The cross reference of related application
The application requires on December 7th, 2011 to the preference of the korean patent application No.10-2011-0130580 of Korea S Department of Intellectual Property submission, and the full content of this application is quoted by this and is incorporated into this, to be used for all purposes.
Technical field
The present invention relates to a kind of heat exchanger for the LPI vehicle.More particularly, the present invention relates to a kind of heat exchanger for the LPI vehicle, it is applicable to LPG fuel and passes through the refrigeration agent heat-shift of Air-conditioning Cycle so that cooling described LPG fuel.
Background technique
Usually, the machinery that is different from the LPG fuel that depends on steel cylinder (bombe) pressure injects type, and LPI(liquefied petroleum injection syringe: a kind of device for injecting liquid LPG fuel) motor has the petrolift that is arranged on described steel cylinder.Described LPG fuel is compressed into High Voltage (5 to 15bar) and is liquefied by described petrolift.By using injector that the fuel of liquefaction is injected cylinder so that drive motor.
Because described LPI motor is applicable to inject the fuel of liquefaction, so assembly is unnecessary as vaporizer and mixer.On the contrary, high pressure injector, the regulation and control unit that is arranged on petrolift, fuel in described steel cylinder and pipeline is provided, is used for the electric controller (ECU) of described LPI motor and is used for controlling fuel pressures are extra necessary.
The electric controller reception of described LPI motor comes from the input signal of various sensors so that determine the situation of described motor, and controls described petrolift, described injector and spark coil so that realize the performance of best air/fuel ratio and raising motor.
In addition, the described petrolift of fuel regulation that described electric controller is required according to described motor is so that provide the fuel of liquefaction to described motor, and described LPI injector one after the other injects fuel so that realize the air/fuel ratio of described the best in cylinder.
Yet, according to the vehicle of using conventional LPI system, because the high-temperature fuel that returns from described motor is returned to described steel cylinder, the temperature of LPG fuel described in described steel cylinder be enhanced and therefore the interior pressure of described steel cylinder also be raised.Especially, in the situation that the stowing pressure that the interior pressure of described steel cylinder is stood higher than LPG, LPG fuel can not be filled with in described steel cylinder.
Reduce the temperature of the fuel that returns from described motor because extra fuel cooling installation need to be arranged on return pipeline, make and installation cost may increase and described LPI motor may be difficult to install in the mini engine chamber.
The information that is disclosed in background parts of the present invention only is intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or hint that in any form this information structure has been prior art known in those skilled in the art.
Summary of the invention
All aspects of of the present invention aim to provide a kind of heat exchanger for the LPI vehicle, described heat exchanger has the following advantages: it is flowed into steel cylinder after the temperature of LPG fuel is lowered, and be back to the described LPG fuel of described steel cylinder by motor and prevent that with refrigeration agent heat-shift by Air-conditioning Cycle the interior pressure of described steel cylinder from increasing by making.
In addition, All aspects of of the present invention aim to provide a kind of heat exchanger for the LPI vehicle, and described heat exchanger has following further advantage: the supercooling effect of the result of the heat exchange between the gas refrigerant of the liquid refrigerant by the middle gentle high pressure that provides as the heat exchange between described refrigeration agent and described LPG fuel and by condenser is provided and the low temperature that is provided by vaporizer and low pressure improves the cooling effectiveness of refrigeration agent.
Therefore, can prevent the mis-behave of air-conditioning and can improve cooling performance.
Be applicable to according to the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention the high temperature LPG fuel that the motor of cooling described LPI vehicle by using LPG fuel returns.
in one aspect of the invention, the heat exchange unit that is used for the LPI vehicle that is applicable to the LPG fuel that the motor in cooling described LPI vehicle by using LPG fuel returns can comprise having first, the thermal radiation part of the second and the 3rd connecting pipeline, described first, the second and the 3rd connecting pipeline forms by piling up a plurality of flat boards, and receives respectively first, the second and the 3rd working solution is to described first, the second and the 3rd connecting pipeline, described first, the second and the 3rd working solution is in process described first, heat-shift and describedly be provided to described first each other in the process of the second and the 3rd connecting pipeline, described first of the second and the 3rd connecting pipeline, the second and the 3rd working solution is not mixed and be recycled each other, forms first on the surface of described thermal radiation part, second and triple feed inlet, described first, second and triple feed inlet be connected to respectively described first, the second and the 3rd connecting pipeline is so that respectively to described first, the second and the 3rd connecting pipeline provides described first, the second and the 3rd working solution, and form first on another surface of described thermal radiation part, the second and the 3rd outlet, described first, the second and the 3rd outlet corresponds respectively to described first, second and triple feed inlet, and be connected to respectively described first, the second and the 3rd connecting pipeline is so that from described first, the second and the 3rd connecting pipeline discharges respectively described first, the second and the 3rd working solution.
Described the first working solution is the LPG fuel that is returned by motor, and described the second working solution is the liquid refrigerant that the condenser by air-conditioning provides, and described the 3rd working solution is the gas refrigerant that is provided by vaporizer.
The corner portions located of described the first import on described thermal radiation part surface forms, and described the first outlet is in another the lip-deep corner portions located formation of facing described the first import with the diagonal form of described thermal radiation part.
In the longitudinal direction with the described first import relative corner portions located of described the second import on described thermal radiation part surface forms, and described the second outlet forms in another lip-deep corner portions located relative with described the second import on width direction of described thermal radiation part.
Described triple feed inlet forms away from described the first import on described thermal radiation part surface in the longitudinal direction, and described the 3rd outlet is in another the lip-deep position formation relative with described triple feed inlet on width direction of described thermal radiation part.
Described LPG fuel is by described the first import, described the first connecting pipeline and described the first outlet circulation, described gas refrigerant is by described the second import, described the second connecting pipeline and described the second outlet circulation, and described liquid refrigerant is by described triple feed inlet, described the 3rd connecting pipeline and described the 3rd outlet circulation.
described the first connecting pipeline is placed in the core of described thermal radiation part, described the second connecting pipeline is arranged as contiguous described the first connecting pipeline at the upper section of described thermal radiation part, and part is arranged as away from described the first connecting pipeline below described thermal radiation part, and flow each other by the first intermediate hole that forms in described a plurality of flat boards and be communicated with, and described the 3rd connecting pipeline is placed on described second connecting pipeline of upper section of described thermal radiation part and is placed between described second connecting pipeline of below part of described the first connecting pipeline and described thermal radiation part, and flow each other by the second intermediate hole that forms in described a plurality of flat boards and be communicated with.
Described first, second, and third connecting pipeline is arranged according to the 3rd, second, first, the 3rd and second connecting pipeline to the below part successively from the upper section of described thermal radiation part.
Described gas refrigerant and described liquid refrigerant flow in the opposite direction respectively in described the second connecting pipeline and described the 3rd connecting pipeline.
Described the first import is connected to described motor, and described the second import is connected to the described condenser of described air-conditioning, and described triple feed inlet is connected to the described vaporizer of described air-conditioning.
Described the first outlet is connected to steel cylinder, and wherein said LPG fuel is returned to and is stored in described steel cylinder, and described the second outlet is connected to the compressor of described air-conditioning, and described the 3rd outlet is connected to the expansion valve of described air-conditioning.
Described thermal radiation is partly plate thermal radiation part, and wherein said a plurality of flat boards are piled up.
Method and apparatus of the present invention has other characteristic and advantage, these characteristics and advantage will be apparent from the accompanying drawing that is incorporated herein and embodiment subsequently, perhaps will state in detail in the accompanying drawing that is incorporated herein and embodiment subsequently, these the drawings and specific embodiments are used for explaining certain principles of the present invention jointly.
Description of drawings
Fig. 1 is the schematic diagram of having used according to the air-conditioning of the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention.
Fig. 2 is the front perspective view according to the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention.
Fig. 3 is the rear view according to the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention.
Fig. 4 is the viewgraph of cross-section of A-A line in Fig. 2.
Fig. 5 is the viewgraph of cross-section of B-B line in Fig. 2.
Fig. 6 is the viewgraph of cross-section of C-C line in Fig. 2.
Fig. 7 is for the viewgraph of cross-section of explanation according to the heat exchanger operation that is used for the LPI vehicle of an exemplary of the present invention.
Should understand, accompanying drawing must not drawn in proportion, and it shows in a way each feature through the basic principle of the present invention of having simplified.Specific DESIGNED FEATURE of the present invention disclosed herein comprises for example specific size, orientation, location and profile, will partly be determined by application and the Environmental Conditions of special purpose.
In these accompanying drawings, in running through several figures of accompanying drawing, reference character refers to identical or equivalent part of the present invention.
Embodiment
Now will be concrete with reference to each embodiment of the present invention, in the accompanying drawings with in following description these embodiments' example has been shown.Although the present invention combines with exemplary embodiment and is described, should understand, this specification is not to be intended to limit the invention to those exemplary embodiments.On the contrary, the present invention is intended to not only cover these exemplary embodiments, and covers various replacements, modification, equivalents and other embodiment that can be included within the spirit and scope of the present invention defined by the claims.
Hereinafter, describe an exemplary of the present invention in detail with reference to accompanying drawing.
The exemplary of describing in this specification and accompanying drawing is only exemplary of the present invention.Be understandable that, when various modifications and equivalents can be included in submit applications among spirit of the present invention.
Fig. 1 is the schematic diagram of having used according to the air-conditioning of the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention, Fig. 2 is the front perspective view according to the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention, Fig. 3 is the rear view according to the heat exchanger that is used for the LPI vehicle of an exemplary of the present invention, Fig. 4 is the viewgraph of cross-section of A-A line in Fig. 2, Fig. 5 is the viewgraph of cross-section of B-B line in Fig. 2, and Fig. 6 is the viewgraph of cross-section of C-C line in Fig. 2.
With reference to described accompanying drawing, the LPG fuel that is applicable to make the refrigeration agent by Air-conditioning Cycle and returns to steel cylinder 5 by motor 3 according to the heat exchanger 100 that is used for the LPI vehicle of an exemplary of the present invention is heat-shift each other, in order to make described LPG fuel flow into described steel cylinder after its temperature is lowered.Therefore, described heat exchanger 100 is applicable to prevent that the interior pressure of described steel cylinder from increasing.
In addition, refrigeration agent and LPG fuel is heat-shift each other, and the gas refrigerant of the liquid refrigerant of the middle gentle high pressure that is provided by condenser 20 and the low temperature that is provided by vaporizer 40 and low pressure heat-shift each other.Therefore, by utilizing supercooling (overcool) effect can improve the cooling effectiveness of described refrigeration agent.Therefore, described heat exchanger 100 is applicable to prevent the mis-behave of described air-conditioning and improves cooling performance.
In this, the described heat exchanger 100 that is used for the LPI vehicle according to an exemplary of the present invention as shown in Figure 1 is applied to described air-conditioning, described air-conditioning comprises be used to the compressor 10 that compresses described refrigeration agent, be used for receiving and come from the refrigeration agent that has compressed of described compressor 10 and the condenser 20 of the described refrigeration agent of condensation, be used for expansion by the expansion valve 30 of the described liquid refrigerant of described condenser 20 condensations, and be used for evaporation by the vaporizer 40 of the described refrigeration agent of described expansion valve 30 expansions by the heat exchange with air.
Described heat exchanger 100 is applicable to come the cooling high temperature LPG fuel that is returned by the described motor 3 in the LPI vehicle of use LPG fuel by the heat exchange with described refrigeration agent.
For this purpose, the described heat exchanger 100 that is used for the LPI vehicle according to an exemplary of the present invention as shown in Figures 2 and 3 comprises thermal radiation part 110, a plurality of imports 120, and a plurality of outlet 130, and each assembly will be described in detail.
Described thermal radiation part 110 forms by piling up a plurality of dull and stereotyped 111, and a plurality of connecting pipeline forms between adjacent flat board 111.In addition, when through described a plurality of connecting pipeline, a plurality of working solutions are heat-shift each other.
Described thermal radiation part 110 is plate (or video disc type) thermal radiation parts, and wherein said a plurality of dull and stereotyped 111 pile up.
In this, described a plurality of working solutions can comprise the LPG fuel that is returned by described motor 3, the liquid refrigerant of the middle gentle high pressure that is provided by the condenser 20 of air-conditioning, and the low temperature that is provided by vaporizer 40 and the gas refrigerant of low pressure.
According to this exemplary, described a plurality of imports 120 form on the surface of described thermal radiation part 110 and described a plurality of working solution flows into described thermal radiation part 110 by described a plurality of imports 120.Described a plurality of import 120 is connected to described a plurality of connecting pipeline.
In addition, described a plurality of outlet 130 is corresponding to described a plurality of imports 120 and be formed at another surface of described thermal radiation part 110.A plurality of working solutions that flow into described thermal radiation part 110 are discharged from by described a plurality of outlets 130.Described a plurality of outlet 130 is connected to described a plurality of connecting pipeline.
In this, described a plurality of imports 120 are included in the surface formation of described thermal radiation part 110 and first, second, and third import 121,123 and 125 that away from each other configures in the longitudinal direction.
In addition, described a plurality of outlet 130 comprises and corresponds respectively to described first, second, and third import 121,123 and 125, and first, second, and third outlet 131,133 and 135 that forms and configure away from each other on another surface of described thermal radiation part 110.Described first, second, and third outlet 131,133 and 135 is connected to respectively described first, second, and third import 121,123 and 125 by a plurality of connecting pipelines 141,143 and 145.
According to this exemplary, described the first import 121 forms in the lip-deep corner portions located of described thermal radiation part 110, and described the first outlet 131 forms with the corner portions located of diagonal form in the face of described the first import 121 on described thermal radiation part 110 another surfaces.
In addition, described the second import 123 is on described thermal radiation part 110 surfaces, relative with described the first import 121 in the longitudinal direction corner portions located forms, and described the second outlet 133 is on described thermal radiation part 110 another surfaces, and corner portions located relative with described the second import 123 on width direction forms.
In addition, described triple feed inlet 125 is on described thermal radiation part 110 surfaces, form away from described the first import 121 in the longitudinal direction, and described the 3rd outlet 135 is on described thermal radiation part 110 another surfaces, position relative with described triple feed inlet 125 on width direction forms.
In this, described LPG fuel is by described the first import 121 and described the first outlet 131 circulations, the gas refrigerant of described low temperature and low pressure is by described the second import 123 and described the second outlet 133 circulations, and the liquid refrigerant of described middle gentle high pressure is by described triple feed inlet 125 and described the 3rd outlet 135 circulations.
In other words, described the first outlet 131 is connected to described steel cylinder 5, wherein said LPG fuel is returned to and is stored in described steel cylinder 5, and described the second outlet 133 is connected to the described compressor 10 of described air-conditioning in order to will provide to described compressor 10 through the low temperature of described heat exchange part 110 and the gas refrigerant of low pressure.
In addition, described the 3rd outlet 135 is connected to the described expansion valve 30 of described air-conditioning in order to will provide to described expansion valve 30 through the liquid refrigerant of the middle gentle high pressure of described heat exchange part 110.
Simultaneously, the connecting port can be arranged on respectively in described import 120 and described outlet 130 and by the connecting hose that is connected to described connecting port and be connected to described air-conditioning, described motor 3 and described steel cylinder 5.
According to this exemplary, described a plurality of connecting pipelines comprise first, second, and third connecting pipeline 141,143 and 145 and will be described in detail.
As shown in Figure 4, described the first connecting pipeline 141 is applicable to described LPG fuel flow and flows into wherein by described the first import 121, and is configured in the core of described thermal radiation part 110.
As shown in Figure 5, according to this exemplary, described the second connecting pipeline 143 is configured to contiguous described the first connecting pipeline 141 at the upper section of described thermal radiation part 110, and part forms away from described the first connecting pipeline 141 below described thermal radiation part 110.Described second connecting pipeline 143 of the upper section of described thermal radiation part 110 and below described thermal radiation part 110 described second connecting pipeline 143 of part be connected to each other by the intermediate hole 151 in described heat exchange part 110, in order to make the low temperature that provides by described the second import 123 and the gas refrigerant of low pressure flow into described the second connecting pipeline 143.
In other words, through the described LPG fuel of described the first connecting pipeline 141 with through being configured on described the first connecting pipeline 141 and with the gas refrigerant heat-shift of the low temperature of contiguous described the second connecting pipeline 143 of described the first connecting pipeline 141 and low pressure and be cooled.
In addition, as shown in Figure 6, described the 3rd connecting pipeline 145 is configured on described second connecting pipeline of upper section of described thermal radiation part 110 and forms between described second connecting pipeline 143 of part below described the first connecting pipeline 141 and described thermal radiation part 110.Described the 3rd connecting pipeline 145 of described the 3rd connecting pipeline 145 of the upper section of described thermal radiation part 110 and the below part of described thermal radiation part 110 is connected to each other by the intermediate hole 153 of described thermal radiation part 110, in order to make the liquid refrigerant of the middle gentle high pressure that provides by described triple feed inlet 125 flow into described the 3rd connecting pipeline 145.
In other words, described the 3rd connecting pipeline 145 be applicable in described thermal radiation part 110 to connect be placed in described the 3rd connecting pipeline 145 on described the first connecting pipeline 141 and be placed in described thermal radiation part 110 below described the 3rd connecting pipeline 145 of part.
Therefore, the gas refrigerant of the low temperature by described the second connecting pipeline 143 and low pressure with through the described LPG fuel heat-shift of described first connecting pipeline 141 of the upper section of described thermal radiation part 110 and with liquid refrigerant heat-shift through the middle gentle high pressure of described the 3rd connecting pipeline 145 of the below part of described thermal radiation part 110.
Therefore, the liquid refrigerant of described LPG fuel and described middle gentle high pressure is cooled by the heat exchange with the gas refrigerant of described low temperature and low pressure.
Because described the second import 123 and described triple feed inlet 125 form at the lip-deep opposite side of described thermal radiation part 110, so the liquid refrigerant of the gas refrigerant of described low temperature and low pressure and described middle gentle high pressure is applicable to flow into described the second connecting pipeline 143 and described the 3rd connecting pipeline 145 to opposite direction.
Therefore, the heat exchange efficiency of the liquid refrigerant of the gas refrigerant of described low temperature and low pressure and described middle gentle high pressure can be enhanced.
In addition, be included in through the uncooled gas refrigerant in the liquid refrigerant of the described middle gentle high pressure of described the 3rd connecting pipeline 145 by being condensed with heat exchange through the gas refrigerant of the described low temperature of described the second connecting pipeline 143 and low pressure.Therefore, the degradation in efficiency due to the described air-conditioning of described uncooled gas refrigerant can be prevented, and the expansion efficiency of described expansion valve 30 can be strengthened.
Hereinafter, operation and the function according to the described heat exchanger 100 for the LPI vehicle of an exemplary of the present invention will be described in detail.
Fig. 7 is for the viewgraph of cross-section that shows according to the heat exchanger operation that is used for the LPI vehicle of an exemplary of the present invention.
As shown in S1 in Fig. 7, the LPG fuel of the high temperature that is returned by described motor 3 flows into by described the first import 121, through described the first connecting pipeline 141, and is discharged to described steel cylinder 5 by described the first outlet 131.
As shown in S2 in Fig. 7, the low temperature that is provided by described vaporizer 40 and the gas refrigerant of low pressure flow into by described the second import 123, through described the second connecting pipeline 143, and are discharged to described compressor 10 by described the second outlet 133.
In this, LNG fuel flows into described the first connecting pipeline 141, and the gas refrigerant of described low temperature and low pressure flows into described the second connecting pipeline 143 on described first connecting pipeline 141 of the upper section that is placed in described thermal radiation part 110.Therefore, described LNG fuel is cooled by the heat exchange with the gas refrigerant of described low temperature and low pressure.
In addition, as shown in S3 in Fig. 7, the liquid refrigerant of the described middle gentle high pressure that is provided by described condenser 20 flows into by described triple feed inlet 125, through described the 3rd connecting pipeline 145, and is discharged to described expansion valve 30 by described the 3rd outlet 135.
At this moment, the gas refrigerant of described low temperature and low pressure flows into described the second connecting pipeline 143, and the liquid refrigerant of described middle gentle high pressure flows into described the 3rd connecting pipeline 145 on described second connecting pipeline 143 of the upper section that is placed in described thermal radiation part 110.In addition, the liquid refrigerant of the gas refrigerant of described low temperature and low pressure and described middle gentle high pressure flow to opposite direction.Therefore, the gas refrigerant heat-shift of the liquid refrigerant of described middle gentle high pressure and described low temperature and low pressure.
Because the liquid refrigerant of described middle gentle high pressure is through described the 3rd connecting pipeline 145 on described second connecting pipeline 143 of upper section that is placed in described thermal radiation part 110, the liquid refrigerant of described middle gentle high pressure prevents that the heat in engine compartment directly is transferred to the gas refrigerant of described low temperature and low pressure and prevents that the temperature of described gas refrigerant from raising.
Therefore, can prevent in advance by the raise deterioration of the described air-conditioning cooling performance that causes of described gas refrigerant temperature.
In addition, the liquid refrigerant of described middle gentle high pressure is through described the 3rd connecting pipeline 145 under described first connecting pipeline 141 of below part that is configured in described thermal radiation part 110.Therefore, when with the gas refrigerant heat-shift of described low temperature and low pressure, prevent from being cooled to gratifying temperature through the described LPG fuel of described the first connecting pipeline 141 by supercooling and with described LPG fuel.
As mentioned above, the described LPG fuel that is cooled to described gratifying temperature is provided to described steel cylinder 5 by described the first outlet 131.
Therefore, described heat exchanger 100 is applicable to cause the high temperature LPG fuel and the gas refrigerant of described low temperature and low pressure and the liquid refrigerant heat-shift of described middle gentle high pressure that are returned by described motor 3, so that described LPG fuel is cooled to described gratifying temperature.Thereafter, described heat exchanger 100 provides described LPG fuel to described steel cylinder 5.Therefore, prevent from being increased by the interior pressure that described high temperature LPG fuel flows in the described steel cylinder 5 that causes.
Simultaneously, be included in through the described uncooled gas refrigerant in the liquid refrigerant of the described middle gentle high pressure of described the 3rd connecting pipeline 145 by being condensed with exchange heat through the gas refrigerant of the low temperature of described the second connecting pipeline 143 and low pressure.Therefore, can prevent the degradation in efficiency of the described air-conditioning that caused by described uncooled gas refrigerant and can improve the expansion efficiency of described expansion valve 30.
Therefore, be applicable to by through the refrigeration agent of described Air-conditioning Cycle be back to after exchange heat between the described LPG fuel of described steel cylinder 5 reduced the temperature of described LPG fuel, described LPG fuel be flowed into described steel cylinder 5 according to the heat exchanger 100 that is used for the LPI vehicle of an exemplary of the present invention.Therefore, can prevent that the interior pressure in described steel cylinder 5 from increasing.
In addition, because prevented that the interior pressure in described steel cylinder 5 from increasing, so can carry out swimmingly the fuel supply and can improve merchantability.
In addition, be applicable to carry out the heat exchange of the gas refrigerant of the liquid refrigerant of the described gentle high pressure that provided by described condenser 20 and the described low temperature that is provided by described vaporizer 40 and low pressure according to the heat exchanger 100 that is used for the LPI vehicle of an exemplary of the present invention.In this case, can improve the cooling effectiveness of refrigeration agent by the supercooling effect of described refrigeration agent, can prevent the mis-behave of described air-conditioning, and can improve cooling performance.
In addition, because the cooling of the supercooling of described refrigeration agent and described LPG fuel carries out in the mini engine chamber simultaneously, so can improve space utilization and can simplified topology.
Explain and accurate definition claim for convenient, term " top ", " below ", " inside " and " outside " are used for the feature of description exemplary, about the position of these features as shown in the figure.
Aforementioned description to concrete exemplary of the present invention is for the purpose with illustration is described.These descriptions are not to think exhaustive the present invention, perhaps the present invention are defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.Exemplary embodiment is selected and the purpose described is to explain certain principles of the present invention and practical application thereof, thereby made others skilled in the art can realize and utilize various exemplary of the present invention and various selection and change.Scope of the present invention is intended to be limited by claims and equivalents thereof.
Claims (12)
1. heat exchange unit that is used for the LPI vehicle, it is applicable to the described LPG fuel that the motor in cooling described LPI vehicle by using LPG fuel returns, and described heat exchanger comprises:
Thermal radiation part with first, second, and third connecting pipeline, described first, second, and third connecting pipeline forms by piling up a plurality of flat boards, and receive respectively first, second, and third working solution to described first, second, and third connecting pipeline, described first, second, and third working solution is through heat-shift each other in the process of described first, second, and third connecting pipeline, and described described first, second, and third working solution that is provided to described first, second, and third connecting pipeline is not mixed and be recycled each other;
First, second, and third import, described first, second, and third import forms on the surface of described thermal radiation part, and is connected to respectively described first, second, and third connecting pipeline in order to provide described first, second, and third working solution to described first, second, and third connecting pipeline respectively; And
First, second, and third outlet, described first, second, and third outlet forms on another surface of described thermal radiation part, correspond respectively to described first, second, and third import, and be connected to respectively described first, second, and third connecting pipeline in order to discharge respectively described first, second, and third working solution from described first, second, and third connecting pipeline.
2. the heat exchange unit for the LPI vehicle according to claim 1, wherein said the first working solution is the LPG fuel that is returned by motor, described the second working solution is the liquid refrigerant that the condenser by air-conditioning provides, and described the 3rd working solution is the gas refrigerant that is provided by vaporizer.
3. the heat exchange unit for the LPI vehicle according to claim 1, the corner portions located of wherein said the first import on described thermal radiation part surface forms, and described the first outlet is in another the lip-deep corner portions located formation of facing described the first import with the diagonal form of described thermal radiation part.
4. the heat exchange unit for the LPI vehicle according to claim 1, in the longitudinal direction with the described first import relative corner portions located of wherein said the second import on described thermal radiation part surface forms, and described the second outlet forms in another lip-deep corner portions located relative with described the second import on width direction of described thermal radiation part.
5. the heat exchange unit for the LPI vehicle according to claim 1, wherein said triple feed inlet forms away from described the first import on described thermal radiation part surface in the longitudinal direction, and described the 3rd outlet is in another the lip-deep position formation relative with described triple feed inlet on width direction of described thermal radiation part.
6. the heat exchange unit for the LPI vehicle according to claim 1, wherein said LPG fuel is by described the first import, described the first connecting pipeline and described the first outlet circulation, described gas refrigerant is by described the second import, described the second connecting pipeline and described the second outlet circulation, and described liquid refrigerant is by described triple feed inlet, described the 3rd connecting pipeline and described the 3rd outlet circulation.
7. the heat exchange unit for the LPI vehicle according to claim 6, wherein said the first connecting pipeline are placed in the core of described thermal radiation part,
Described the second connecting pipeline is arranged as contiguous described the first connecting pipeline at the upper section of described thermal radiation part, and part is arranged as away from described the first connecting pipeline below described thermal radiation part, and flowing each other by the first intermediate hole that forms in described a plurality of flat boards is communicated with, and
Described the 3rd connecting pipeline is placed on described second connecting pipeline of upper section of described thermal radiation part and is placed between described second connecting pipeline of below part of described the first connecting pipeline and described thermal radiation part, and flows each other by the second intermediate hole that forms in described a plurality of flat boards and be communicated with.
8. the heat exchange unit for the LPI vehicle according to claim 7, wherein said first, second, and third connecting pipeline is arranged according to the 3rd, second, first, the 3rd and second connecting pipeline to the below part successively from the upper section of described thermal radiation part.
9. stream is in the opposite direction respectively in described the second connecting pipeline and described the 3rd connecting pipeline for the heat exchange unit for the LPI vehicle according to claim 6, wherein said gas refrigerant and described liquid refrigerant.
10. the heat exchange unit for the LPI vehicle according to claim 1, wherein said the first import is connected to described motor, described the second import is connected to the described condenser of described air-conditioning, and described triple feed inlet is connected to the described vaporizer of described air-conditioning.
11. the heat exchange unit for the LPI vehicle according to claim 1, wherein said the first outlet is connected to steel cylinder, wherein said LPG fuel is returned to and is stored in described steel cylinder, described the second outlet is connected to the described compressor of described air-conditioning, and described the 3rd outlet is connected to the described expansion valve of described air-conditioning.
12. the heat exchange unit for the LPI vehicle according to claim 1, wherein said thermal radiation are partly plate thermal radiation parts, wherein said a plurality of flat boards are piled up.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2011-0130580 | 2011-12-07 | ||
| KR1020110130580A KR101316861B1 (en) | 2011-12-07 | 2011-12-07 | Heat exchanger for lpi vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103147886A true CN103147886A (en) | 2013-06-12 |
| CN103147886B CN103147886B (en) | 2018-02-16 |
Family
ID=48464728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210225021.4A Active CN103147886B (en) | 2011-12-07 | 2012-06-29 | Heat exchanger for LPI vehicle |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130146246A1 (en) |
| JP (1) | JP5948158B2 (en) |
| KR (1) | KR101316861B1 (en) |
| CN (1) | CN103147886B (en) |
| DE (1) | DE102012105604B4 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101886075B1 (en) * | 2012-10-26 | 2018-08-07 | 현대자동차 주식회사 | Heat exchanger for vehicle |
| KR102017044B1 (en) * | 2013-07-10 | 2019-09-02 | 현대자동차주식회사 | Air conditioner system for vehicle |
| JP5907183B2 (en) * | 2014-01-22 | 2016-04-26 | トヨタ自動車株式会社 | Vehicle fuel cooling system |
| EP2985443B1 (en) * | 2014-08-15 | 2017-02-22 | Wärtsilä Finland Oy | A fuel system for an internal combustion piston engine and a method of operating an internal combustion engine |
| KR101745270B1 (en) * | 2016-07-13 | 2017-06-08 | 현대자동차주식회사 | System for cooling filling lpg bombe of bi-fuel vehicle |
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| JP4031668B2 (en) * | 2002-05-23 | 2008-01-09 | 東京ラヂエーター製造株式会社 | Heat exchanger |
| JP2008144713A (en) * | 2006-12-12 | 2008-06-26 | Toyota Motor Corp | Fuel cooling device and its manufacturing method |
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| KR101734281B1 (en) * | 2011-05-20 | 2017-05-12 | 현대자동차 주식회사 | Condenser for vehicle |
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2011
- 2011-12-07 KR KR1020110130580A patent/KR101316861B1/en active IP Right Grant
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2012
- 2012-06-11 JP JP2012132154A patent/JP5948158B2/en active Active
- 2012-06-21 US US13/529,810 patent/US20130146246A1/en not_active Abandoned
- 2012-06-27 DE DE102012105604.8A patent/DE102012105604B4/en active Active
- 2012-06-29 CN CN201210225021.4A patent/CN103147886B/en active Active
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2013119853A (en) | 2013-06-17 |
| US20130146246A1 (en) | 2013-06-13 |
| JP5948158B2 (en) | 2016-07-06 |
| CN103147886B (en) | 2018-02-16 |
| KR20130063945A (en) | 2013-06-17 |
| DE102012105604B4 (en) | 2021-05-06 |
| KR101316861B1 (en) | 2013-10-08 |
| DE102012105604A1 (en) | 2013-06-13 |
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