CN105136480A - Warm air testing machine of vehicle - Google Patents
Warm air testing machine of vehicle Download PDFInfo
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- CN105136480A CN105136480A CN201510641306.XA CN201510641306A CN105136480A CN 105136480 A CN105136480 A CN 105136480A CN 201510641306 A CN201510641306 A CN 201510641306A CN 105136480 A CN105136480 A CN 105136480A
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- warm braw
- test
- test fluid
- vehicle
- water tank
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Abstract
Disclosed in the invention is a warm air testing machine of a vehicle. The testing machine comprises a testing liquid barrel and testing liquid installed into the testing liquid barrel. A heating module is arranged on the testing liquid barrel and is used for heating the testing liquid in the testing liquid barrel, so that the liquid has a certain temperature all the time and thus testing of a heater tank by the testing liquid can be realized conveniently. In addition, the machine also includes a circulation module and a cleaning module; the circulation module connected with the testing liquid barrel is used for driving the heated testing liquid to flow the heater tank repeatedly to form a test loop; and the cleaning module is used for cleaning the inside of the heater tank. According to the invention, whether a warm air fault is caused by a heater tank can be determined rapidly and thus a phenomenon that the heater tank arranged on a work bench is dismounted by mistake during the warm air maintenance and thus other parts are damaged can be prevented. Meanwhile, the maintenance time is saved; and the heater tank in the vehicle can be cleaned and thus the service life of the heater tank can be prolonged.
Description
Technical field
The invention belongs to automobile mechanical field, more particularly, relate to a kind of vehicle warm braw test machine.
Background technology
Automobile is that the hot water provided by engine guides the little water tank of warm braw into by water pipe, and then by the effect of blower motor, the hot blast that adds of blowing over the little water tank of warm braw is delivered to car indoor, thus reaches the object of heating, glass for vehicle window defrosting and defogging.
Usually at thermostat under normal circumstances, blower fan 1 grade of hot blast, 2 grades of warm airs, 3 grades of cool breeze, 4 grades of cold wind, wind-warm syndrome measured by electronic thermometer should be greater than 52 DEG C, engine coolant temperature indicator 90 ° of C, when vehicle uses year of a specified duration, particularly in the north, winter Vehicle Heating hydraulic performance decline, warm braw air outlet wind-warm syndrome reduces, and hot blast is not enough, or just having opened fan outlet is hot blast, namely be cool breeze subsequently, opening blower fan after having stopped blower fan a few minutes is again hot blast, is again cool breeze subsequently.
This situation normally the little water tank of warm braw (warm braw heat exchanger) inside blocking, inner blocking is caused by following reason: 1, individual vehicle cooling system in summer adds water or uses liquid coolant inferior to cause fouling in the little water tank of warm braw, the little water tank of the dirt tied blocking warm braw; 2, the rust sheet in the little water tank of warm braw is too much, blocks the little water tank of warm braw; 3, when the little water tank of warm braw keeps in repair, liner smears fluid sealant too much, and unnecessary glue drips cooled liquid and washes away, and deposits in the little water tank of warm braw, the little water tank of blocking warm braw; Will keep in repair the little water tank of warm braw when a failure occurs.
The little water tank of warm braw is arranged on inner bellows, keep in repair the worktable just needing to pull down vehicle, decomposes bellows, to change the little water tank of warm braw, more progressively reassembles.Whole process approximately needs 3 to 5 hours (if the structure of vehicle is simple, then approximately need 3 hours the servicing time of the little water tank of warm braw, the time that warm braw little water tank needs changed by the luxurious car that some structures are more complicated is then longer, and some even needs more than ten hour).But, some vehicles still do not solve the bad problem of warm braw heat after the little water tank of replacing, real fault is now described at other positions so waste the regular hour, maintenance personal also very easily damages the instrument of former car, fixing buckle etc. when disassemble and assemble work platform simultaneously, easily damage because part is comparatively accurate, even if handle with care, the filament as dial illumination bulb also may break etc.
Summary of the invention
For the deficiencies in the prior art, the invention provides a kind of without the need to little for warm braw water tank is pulled down can detect warm braw effect decline whether caused and the vehicle warm braw test machine that the little water tank of warm braw is cleaned by the little water tank of warm braw.
For achieving the above object, the invention provides following technical scheme: a kind of vehicle warm braw test machine, comprise test fluid bucket and be loaded on the test fluid in test fluid bucket, test fluid bucket is provided with,
Heating module, heats the test fluid in test fluid bucket, makes it remain uniform temperature, so that test fluid is for the test of the little water tank of warm braw; Also include
Loop module, is connected with test fluid bucket, and drives the complete test fluid of heating repeatedly to flow through the little water tank of warm braw, forms test loop;
Cleaning module, cleans in the little water tank of warm braw.
Screen pack is provided with in further test fluid bucket.
Further heating control apparatus comprises electric heater, temperature control sensor, digital display thermostat controller, computer heating control switch and A.C. contactor, the coils connected in series of heater switch, digital display thermostat controller and A.C. contactor, electric heater is connected on the normally opened contact of A.C. contactor, and temperature control sensor is connected on digital display thermostat controller.
Further loop module comprises ebullator, water inlet pipe and the rising pipe for being connected the little water tank of warm braw, and water inlet pipe is connected with test fluid bucket.
Further cleaning module comprises water way unit, gas circuit unit and control module, water way unit, gas circuit unit and control module setting parallel with one another.
Further water way unit comprises Water supply switch valve, water source supercharge pump and waterway electromagnetic valve, and Water supply switch valve is connected with water source supercharge pump, and water source supercharge pump is parallel with waterway electromagnetic valve.
Water source supercharge pump power meter and shock-proof pressure gauge is connected with between further waterway electromagnetic valve and water source supercharge pump.
Further gas circuit unit comprises electromagnetic valve of gas circuit and very first time relay, and electromagnetic valve of gas circuit and very first time relay series connection, electromagnetic valve of gas circuit is connected with air transformer.
Further control module comprises cleaning switch and second time relay, cleaning switch and the series connection of second time relay.
Further ebullator is parallel with power light, waterway electromagnetic valve is parallel with water supply pilot lamp, second time relay is parallel with clean light, A.C. contactor is parallel with burner on light.
Compared with prior art, the invention has the beneficial effects as follows:
1, when the warm braw of vehicle goes wrong, only the test fluid bucket of little for the warm braw of vehicle water tank and vehicle warm braw test machine and loop module need be linked together, form test loop, heating module heats the test fluid in test fluid bucket makes it keep certain temperature, then the test fluid after loop module makes heating is not arrheaed into the little water tank of warm braw, hot blast sent by the fan blower of vehicle, if the shortage of heat that the little water tank of warm braw produces, check whether the cold and hot aerofoil of bellows puts in place, if cold and hot aerofoil puts in place, then need to utilize the cleaning module of warm braw test machine to clean the little water tank of warm braw.Be connected with cleaning module by little for warm braw water tank, the tamper in little for warm braw water tank, to cleaning, is thoroughly removed totally by cleaning module.If warm braw does not also recover, then carry out the dismounting and change of the little water tank of warm braw or the investigation of other faults again, thus improve the efficiency of maintenance, the present invention can judge whether the fault of warm braw is caused by the little water tank of warm braw fast, prevent from warm braw maintenance, tearing the little water tank of warm braw on worktable open by mistake and damaging other parts, save the very long detachable maintaining time simultaneously, also can clean the little water tank of the warm braw of vehicle, extend the serviceable life of the little water tank of warm braw, offer convenience to the maintenance job of vehicle warm braw, make the vehicle warm braw of 95% on the basis not changing the little water tank of warm braw, only rely on test and cleaning just can recover standard amount.
2, the tamper such as rust sheet, impurity, micelle that little for warm braw water tank deposits by cleaning module is discharged, it is made to be gathered on screen pack, test fluid continues circulation and flows in the little water tank of warm braw, tamper and test fluid are separated by screen pack, can prevent from again flowing back to from the tamper of the discharge in the little water tank of warm braw the blocking causing the little water tank of warm braw in the little water tank of warm braw with test fluid.
Compared with prior art, the present invention can judge whether the fault of warm braw is caused by the little water tank of warm braw fast, prevent from warm braw maintenance, tearing the little water tank of warm braw on worktable open by mistake and damaging other parts, save servicing time simultaneously, also can clean the little water tank of the warm braw of vehicle, extend the serviceable life of the little water tank of warm braw.
Accompanying drawing explanation
Fig. 1 is the test philosophy figure of vehicle warm braw test machine of the present invention;
Fig. 2 is the fundamental diagram of the cleaning module of vehicle warm braw test machine of the present invention;
Fig. 3 is the circuit diagram of vehicle warm braw test machine of the present invention;
Fig. 4 is the stereographic map of vehicle warm braw test machine of the present invention;
Fig. 5 is the stereographic map at another visual angle of vehicle warm braw test machine of the present invention.
Wherein: 1, power supply; 2, shock-proof pressure gauge; 3, very first time relay; 4, second time relay; 5, digital display thermostat controller; 6, control knob and pilot lamp; 7, handle; 8, casing; 9, lantern socket; 10, comprehensive wire harness hole; 11, tool box door lock; 12, low-pressure gas source delivery outlet; 13, high-pressure air source delivery outlet; 14, water source delivery outlet; 15, water delivering orifice; 16, water return outlet; 17, test fluid bucket; 18, source of the gas input port; 19, input port, water source; 20, water source supercharge pump power meter; 21, fuse; 22, test fluid; 23, screen pack; 24, temperature control sensor; 25, electric heater; 26, the little water tank of warm braw; 27, water outlet sebific duct; 28, water inlet sebific duct; 29, rising pipe; 30, water inlet pipe; 31, return pipe; 32, vehicle accumulator; 33, air transformer; 34, waterway electromagnetic valve; 35, electromagnetic valve of gas circuit; 36, water route retaining valve; 37, air passage one-way valve; 38, transparent plastic pail; 39, cleaning module; 40, heating module; 41, loop module.
Embodiment
Referring to figs. 1 through Fig. 5, the embodiment of vehicle warm braw test machine of the present invention is described further.
A kind of vehicle warm braw test machine, preferably be set to: the test fluid 22 that test machine comprises test fluid bucket 17 and is loaded in test fluid bucket 17, the volume of test fluid bucket 17 is 21L, the diameter of test fluid bucket 17 is 30cm, test fluid 22 is distilled water or pure water, screen pack 23 is provided with in test fluid bucket 17, the height of test fluid 22 is lower than the height of screen pack 23, test fluid bucket 17 is connected with return pipe 31, the tie point of return pipe 31 and test fluid bucket 17 is higher than screen pack 23, test fluid bucket 17 is provided with heating module 40, heating module 40 is for heating the test fluid 22 in test fluid bucket 17, it is made to remain uniform temperature, so that test fluid 22 is for the cleaning of the little water tank 26 of warm braw, heater switch K4 in heating module 40, the coils connected in series of digital display thermostat controller 5 and A.C. contactor KM1, the electric heater 25 of 7.5kW is connected on the normally opened contact of A.C. contactor KM1, namely main circuit is arranged in, and A.C. contactor KM1 is parallel with burner on light D4, temperature control sensor 24 is connected on digital display thermostat controller 5, heating module 40 is in series with fuse 21.
Test machine also includes loop module 41 and cleaning module 39, water inlet pipe 30 one end of loop module 41 is connected with test fluid bucket 17, water inlet pipe 30 is positioned at the below of screen pack 23 with the tie point of test fluid bucket 17, the other end of water inlet pipe 30 is connected with ebullator M1, ebullator M1 being also connected with the rising pipe 29 for connecting the little water tank 26 of warm braw, ebullator M1 being parallel with power supply 1 pilot lamp D1.
Cleaning module 39 unit by water, gas circuit unit and control module composition parallel with one another, water way unit is composed in series by Water supply switch valve K2 and water source supercharge pump M2, water source supercharge pump M2 is parallel with waterway electromagnetic valve 34, waterway electromagnetic valve 34 is connected with water route retaining valve 36, waterway electromagnetic valve 34 is parallel with water supply pilot lamp D2, water source supercharge pump power meter 20 and shock-proof pressure gauge 2 is connected with between waterway electromagnetic valve 34 and water source supercharge pump M2, gas circuit unit is composed in series by electromagnetic valve of gas circuit 35 and very first time relay 3, electromagnetic valve of gas circuit 35 is connected with air passage one-way valve 37 and air transformer 33, control module comprises cleaning switch K3 and second time relay 4, cleaning switch K3 and second time relay 4 are connected, second time relay 4 is parallel with clean light D3.
What control knob and pilot lamp 6 were arranged on casing 8 is arranged on front side wall top, former and later two sidewalls of the casing 8 of test machine are hinged with chamber door, chamber door on front side wall offers handle 6, chamber door on rear wall is provided with tool box door lock 11, the rear wall of casing 8 is provided with lantern socket 9, the position of the gentle extraction slit in the corresponding source of the gas input port 18 of rear wall offers comprehensive wire harness hole 10, bottom test machine, is provided with roller.
Before the little water tank 26 of warm braw is tested, the handle 6 on casing 8 is pulled to be opened by chamber door, take off the bung of test fluid bucket 17, the test fluid 22 injected in test fluid bucket 17 in test fluid 2214L(test fluid bucket 17 is highly 20cm), cover bung again, first former for little for the warm braw of warm braw fault car water tank 26 car sebific duct is pulled down, with the former car sebific duct of technique shutoff, reduce anti freezing solution water clock, again the water outlet sebific duct 27 of little for warm braw water tank 26 is connected on the water delivering orifice 15 of test machine rising pipe 29, water inlet sebific duct 28 is connected on the water return outlet 16 of test machine return pipe 31, the rust sheet that the little water tank 26 of the favourable warm braw of reverse adapter deposits, impurity, the tampers such as micelle are discharged, it is made to be gathered on screen pack 23, test fluid 22 continues circulation and flows in the little water tank 26 of warm braw, tamper and test fluid 22 are separated by screen pack 23, can prevent from again flowing back to from the tamper of the discharge in the little water tank of warm braw 26 blocking causing the little water tank 26 of warm braw in the little water tank 26 of warm braw with test fluid 22.
Warm braw test machine simulated engine provides thermal source for the little water tank 26 of warm braw, connection direct supply 1 also regulation voltage makes the ebullator M1 of test machine work, the difference of ebullator M1 operating voltage produces test fluid 22 circular flow is different, (idling refers to that engine operates in uncharge situation to the idling of vehicle warm braw test machine simulating vehicle engine, only need overcome the frictional resistance of therein parts, not external output power, when engine running, if close the throttle completely, at this moment engine is just in idling mode) circular flow revolution different from vehicle motor time internal circulating load, ebullator M1 makes test fluid 22 circulate in the little water tank 26 of warm braw, closed heater switch K4, test fluid 22 constant temperature 90 ° of C are set, whether temperature control sensor 24 perception test liquid 22 temperature signal is 90 ° of C, when temperature is lower than 90 ° of C, digital display thermostat controller 5HWK output signal makes the A.C. contactor KM1 powered to electric heater 25 work, electric heater 25 pairs of test fluid 22 heat (well heater 7.5kW, if test fluid 22 initial temperature 15 ° of C, environment temperature 20 ° of C, by test fluid 22 electrified regulation of 14L to during 90 ° of C about about ten minutes), if electric current is excessive in circuit, then fuse 21 disconnecting circuit, circuit is played a protective role, when temperature arrives 90 ° of C, digital display thermostat controller 5 output signal makes the A.C. contactor KM1 powered to electric heater 25 quit work, hot blast sent by the fan blower of vehicle, if the shortage of heat that the little water tank 26 of warm braw produces, check whether the cold and hot aerofoil of bellows puts in place, if cold and hot aerofoil puts in place, then need to utilize the cleaning function of warm braw test machine to clean the little water tank 26 of warm braw.
Vehicle warm braw test machine has road 0-30V, 0-10A constant voltage, constant-current dc power supply 1 exports, and is that vehicle accumulator 32 charges when vehicle motor does not work, and ensure that the power supply 1 of blower motor for vehicles is stablized, vehicle warm braw air outlet air quantity is stablized.
Carry out warm braw little water tank 26 when cleaning, first water pipe is connected with input port, water source 19, water source is provided to test machine, again the water outlet sebific duct 27 of little for warm braw water tank 26 and water inlet sebific duct 28 are taken off from rising pipe 29 and water inlet pipe 30, then the water source delivery outlet 14 of water outlet sebific duct 27 with vehicle warm braw test machine is connected, water inlet sebific duct 28 is caused bore to be greater than in the transparent plastic pail 38 of water sebific duct 28, fixed, prevent the water cleaned from spilling, Water supply switch valve K2 is closed connects circuit, water source supercharge pump M2 and waterway electromagnetic valve 34 work, water source supercharge pump M2 is used for increasing hydraulic pressure, waterway electromagnetic valve 34 is in order to adjust the direction of current, flow and speed etc., water source supercharge pump power meter 20 shows working current (if working current exceeds normal range, have a power failure and check reason, and queueing problem), shock-proof pressure gauge 2 tests the water flow pressure flow through, current flow to the little water tank 26 of warm braw through water source delivery outlet 14, cleaning switch K3 closes, the time relay was powered to electromagnetic valve of gas circuit 35 according to the time of setting, power-off, source of the gas blows current and forms high-speed pulse current, flushing warm braw little water tank 26 inwall that high-speed pulse current are interrupted, the current flowed out carry the rust sheet of alluvial in the little water tank 26 of warm braw, impurity, the tampers such as micelle are expelled in transparent plastic pail 38 from water inlet sebific duct 28, tamper is deposited at the bottom of the bucket of transparent plastic pail 38, water route retaining valve 36 makes current can only uniflux and cannot refluxing, waterway electromagnetic valve 34 is had to the effect of protection, shock-proof pressure gauge 2 is used for showing cleaning pressure, source of the gas is from source of the gas input port 18, low-pressure gas source delivery outlet 12 or high-pressure air source delivery outlet 13 input, source of the gas is adjusted to suitable pressure by air transformer 33, through electromagnetic valve of gas circuit 35 and air passage one-way valve 37, air passage one-way valve 37 stops water source to enter air-channel system, protection air passage one-way valve 37, observe at the bottom of the bucket of transparent plastic pail 38 until tamper no longer increases, disconnect cleaning switch K3 and Water supply switch valve K2, cleaning terminates.
Again water inlet sebific duct 28 is connected on the water return outlet 16 of test machine return pipe 31, water outlet sebific duct 27 is connected on the water delivering orifice 15 of test machine rising pipe 29, continue warm braw little water tank 26 heat amount test, if warm braw air outlet temperature increases, but or 52 ° of more than C can not be reached, illustrate that the water inlet of the little water tank of warm braw 26 and the division wall leakage of water delivering orifice 15 or the little water tank of warm braw 26 other paths block, this will change the little water tank 26 of warm braw.
If the temperature of warm air outlet reaches satisfied, then first by the test fluid 22 of the little water tank 26 of source of the gas blowout warm braw of 0.05Mpa, remaining test fluid 22 is thoroughly blown clean again with the source of the gas of 0.8Mpa, pull down the water inlet sebific duct 28 and water outlet sebific duct 27 that connect the little water tank 26 of warm braw and test machine, to be careful when pulling down operation, notice that the interior test fluid 22 up to 90 ° of C of pipe is to avoid scalding, and finally reassembles the sebific duct of the little water tank 26 of warm braw.When finding that the sebific duct elasticity of former car is bad, new product please be change.
More than operate after all completing, start vehicle, engine warms, add anti freezing solution to standard liquid level, observe engine and whether enclose gas, be vented in time, in order to avoid vapour lock, when engine temperature reaches standard, open blower switch, warm braw will normally heat supply.If warm braw or bad, explanation is the problem outside the little water tank 26 of warm braw.Carefulness is wanted to check engine cool ebullator (abbreviation water pump) and other iron pipe connected and sebific duct one by one, to fix a breakdown.
The working power 1 of test machine is 380V, 50Hz, test machine need have access water source and source of the gas with the use of, water source is tap water, cistern or water pot, and input source of the gas is pressure 0.8Mpa, flow is not less than the pressurized air of 600L/min.
Roller bottom test machine makes staff more laborsaving when mobile test machine.
Below be only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. a vehicle warm braw test machine, is characterized in that: comprise test fluid bucket and be loaded on the test fluid in test fluid bucket, test fluid bucket is provided with,
Heating module, heats the test fluid in test fluid bucket, makes it remain uniform temperature, so that test fluid is for the test of the little water tank of warm braw; Also include
Loop module, is connected with test fluid bucket, and drives the complete test fluid of heating repeatedly to flow through the little water tank of warm braw, forms test loop;
Cleaning module, cleans in the little water tank of warm braw.
2. vehicle warm braw test machine according to claim 1, is characterized in that: be provided with screen pack in described test fluid bucket.
3. vehicle warm braw test machine according to claim 2, it is characterized in that: described heating module comprises electric heater, temperature control sensor, computer heating control switch and A.C. contactor, the coils connected in series of described heater switch, digital display thermostat controller and A.C. contactor, described electric heater is connected on the normally opened contact of A.C. contactor, and described temperature control sensor is connected on digital display thermostat controller.
4. vehicle warm braw test machine according to claim 3, is characterized in that: described loop module comprises ebullator, water inlet pipe is connected with described test fluid bucket with the rising pipe for being connected the little water tank of warm braw, described water inlet pipe.
5. vehicle warm braw test machine according to claim 4, is characterized in that: described cleaning module comprises water way unit, gas circuit unit and control module, described water way unit, gas circuit unit and control module setting parallel with one another.
6. vehicle warm braw test machine according to claim 5, it is characterized in that: described water way unit comprises Water supply switch valve, water source supercharge pump and waterway electromagnetic valve, described Water supply switch valve is connected with described water source supercharge pump, and described water source supercharge pump is parallel with waterway electromagnetic valve.
7. vehicle warm braw test machine according to claim 6, is characterized in that: be connected with water source supercharge pump power meter and shock-proof pressure gauge between described waterway electromagnetic valve and water source supercharge pump.
8. vehicle warm braw test machine according to claim 5, it is characterized in that: described gas circuit unit comprises electromagnetic valve of gas circuit and very first time relay, described electromagnetic valve of gas circuit and very first time relay series connection, described electromagnetic valve of gas circuit is connected with air transformer.
9. vehicle warm braw test machine according to claim 5, is characterized in that: described control module comprises cleaning switch and second time relay, described cleaning switch and the series connection of second time relay.
10. the vehicle warm braw test machine according to claim 6,8 or 9, it is characterized in that: described ebullator is parallel with power light, described waterway electromagnetic valve is parallel with water supply pilot lamp, described second time relay is parallel with clean light, described A.C. contactor is parallel with burner on light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641306.XA CN105136480A (en) | 2015-10-08 | 2015-10-08 | Warm air testing machine of vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510641306.XA CN105136480A (en) | 2015-10-08 | 2015-10-08 | Warm air testing machine of vehicle |
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| CN105136480A true CN105136480A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510641306.XA Pending CN105136480A (en) | 2015-10-08 | 2015-10-08 | Warm air testing machine of vehicle |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132386A (en) * | 1996-11-01 | 1998-05-22 | Matsushita Electric Ind Co Ltd | Electrical warm air machine |
| CN101850346A (en) * | 2010-06-02 | 2010-10-06 | 安徽中鼎金亚汽车管件制造有限公司 | Cleaning device for automobile power-steering oil suction pipe |
| CN201637595U (en) * | 2010-04-15 | 2010-11-17 | 上海佐竹冷热控制技术有限公司 | Performance testing device of heat exchanger |
| CN203020281U (en) * | 2013-01-03 | 2013-06-26 | 郭二忠 | Disassembly-free cleaning equipment for heater water tank of motor vehicle |
| CN205015166U (en) * | 2015-10-08 | 2016-02-03 | 李卫良 | Vehicle warm braw test machine |
-
2015
- 2015-10-08 CN CN201510641306.XA patent/CN105136480A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10132386A (en) * | 1996-11-01 | 1998-05-22 | Matsushita Electric Ind Co Ltd | Electrical warm air machine |
| CN201637595U (en) * | 2010-04-15 | 2010-11-17 | 上海佐竹冷热控制技术有限公司 | Performance testing device of heat exchanger |
| CN101850346A (en) * | 2010-06-02 | 2010-10-06 | 安徽中鼎金亚汽车管件制造有限公司 | Cleaning device for automobile power-steering oil suction pipe |
| CN203020281U (en) * | 2013-01-03 | 2013-06-26 | 郭二忠 | Disassembly-free cleaning equipment for heater water tank of motor vehicle |
| CN205015166U (en) * | 2015-10-08 | 2016-02-03 | 李卫良 | Vehicle warm braw test machine |
Non-Patent Citations (1)
| Title |
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| 吴志功: "《青年无线电实用手册》", 31 January 1983, 中国青年出版社 * |
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Application publication date: 20151209 |