CN202928801U - Deep thermal shock test device - Google Patents
Deep thermal shock test device Download PDFInfo
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- CN202928801U CN202928801U CN 201220614163 CN201220614163U CN202928801U CN 202928801 U CN202928801 U CN 202928801U CN 201220614163 CN201220614163 CN 201220614163 CN 201220614163 U CN201220614163 U CN 201220614163U CN 202928801 U CN202928801 U CN 202928801U
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Abstract
The utility model relates to engine test equipment and particularly relates to a deep thermal shock test device, which comprises an engine oil cooling circulation system. An oil-water heat exchanger comprises a first branch, a second branch and a third branch. The first branch is provided for the circulation engine oil to pass in and out of the oil-water heat exchanger. The second branch is provided for the circulation extraneous water to pass in and out of the oil-water heat exchanger. The third branch is provided for the circulation low-temperature coolant to pass in and out of the oil-water heat exchanger. The first extraneous water inlet pipe and the first extraneous water outlet pipe of the second branch are provided with an extraneous water switching valve respectively. The low-temperature coolant inlet pipe and the low-temperature coolant outlet pipe of the third branch are provided with a low-temperature coolant switching valve respectively. The low-temperature coolant inlet pipe and the low-temperature coolant outlet pipe are both connected with a low-temperature coolant supply pipe or a low-temperature coolant return pipe. According to the technical scheme of the utility model, due to the adoption of the device, the engine oil coolant circulation process and the constant-temperature engine oil extraneous water circulation process are realized by means of a common oil-water heat exchanger. Meanwhile, the engine oil cooling circulation system has the advantages of simple structure, convenient operation, high performance-price ratio and low production cost.
Description
Technical field
The utility model relates to Engine Block Test equipment, particularly a kind of depth cold-hot impact test device.
Background technology
In the situation that limit heat is investigated permanance and the reliability of Static and dynamic sealing system, it is an important content of engine test, this test mode is mainly used to develop and assess the reliability of aluminum cylinder assembly related components of engine and the test of permanance, and test will determine the intensity of the parts under extreme temperature and operating mode.Test is focussed in particular on the piston of engine, piston ring, head gasket, cylinder sleeve, camshaft, boss and guide edge, main bearing, cylinder body, cylinder head, air inlet and exhaust valve and valve seat and all seal points thereof.
Each automaker carried out this type of test according to GB in the past, namely test by the corresponding test specification of motor car engine reliability test method " GB/T19055-2003 " establishment, realize the switching back and forth coolant temperature is from 35 ℃ to 110 ℃, switching time, Minute was calculated, because temperature difference is smaller, realize than being easier to.but do not simulate high and cold fully, the actual environment temperature in high thermally district is on its impact that causes, the test of engine specimen development phase now needs more extreme temperature variations (-30 ℃ of cold soakings bubbles of part producer's requirement, the temperature of 120 ℃ of heat soakings is controlled), carry out more extreme depth cold-hot impact test, yet, this kind equipment that can meet the technical requirements such as precision is at present abroad monopolized substantially, cost is higher, the being seen home equipment of existing market is because of reasons such as design concept are unreasonable, in coolant temperature, pressure, all do not reach the development test requirement in the control of flow velocity.
Chinese patent instructions CN201233315 has announced a kind of engine depth cold-hot impact test device, comprises liquid coolant heat circulating system, cooling liquid-cooling circulating system, engine oil cooling circulation system.This device can the control engine liquid coolant and temperature and the reliability circulation pattern of machine oil, can realize the cold and hot temperature variation impulse test of the limit.But in this engine depth cold-hot impact test device, the complex structure of engine oil cooling circulation system, engine oil cooling circulation system comprise two oil-water heat exchangers, and manufacturing cost is high.
Summary of the invention
The depth cold-hot impact test device that provides a kind of engine oil cooling circulation system simple in structure is provided the purpose of this utility model.
to achieve these goals, the utility model adopts following technical scheme: the depth cold-hot impact test device, comprise cooling liquid-cooling circulating system, engine oil cooling circulation system, described cooling liquid-cooling circulating system comprises refrigeration unit, cold water storage cistern, for the cryogenic liquid feed pipe of cryogenic liquid from the cold water storage cistern inflow engine, flow back to the cryogenic liquid return pipe of cold water storage cistern from transmitter for cryogenic liquid, described engine oil cooling circulation system comprises oil-water heat exchanger, described oil-water heat exchanger is provided be used to the branch road that carries out heat interchange, the branch road of oil-water heat exchanger comprises the first branch road for circulation machine oil turnover oil-water heat exchanger, the first branch road has a pair of oil inlet pipe, flowline, the branch road of described oil-water heat exchanger also comprises for circulation extraneous water turnover oil-water heat exchanger the second branch road, the 3rd branch road for circulation cryogenic liquid turnover oil-water heat exchanger, the second branch road comprises the first extraneous water water inlet pipe, the first extraneous water rising pipe, the 3rd branch road comprises the cryogenic liquid water inlet pipe, the cryogenic liquid rising pipe, be equipped with the extraneous water switch valve of controlling the second branch road break-make on described the first extraneous water water inlet pipe and the first extraneous water rising pipe, be equipped with the cryogenic liquid switch valve of controlling the 3rd branch road break-make on described cryogenic liquid water inlet pipe and cryogenic liquid rising pipe, described cryogenic liquid water inlet pipe all is connected with cryogenic liquid feed pipe or cryogenic liquid return pipe with the cryogenic liquid rising pipe.
Between described oil inlet pipe and flowline, bridge joint has the short circuit oil pipe, and the junction of described short circuit oil pipe and flowline is provided with an oil circuit T-valve.
also comprise the liquid coolant heat circulating system, described liquid coolant heat circulating system comprises boiler, for the high temperature coolant feed pipe of cyclic high-temperature liquid coolant from the boiler inflow engine, flow back to the high temperature coolant return pipe of boiler from transmitter for the cyclic high-temperature liquid coolant, the water water heat exchanger, described water water heat exchanger is provided with two branch roads, a branch road of water water heat exchanger comprises a pair of the second extraneous water water inlet pipe and the second extraneous water rising pipe for the turnover of circulation extraneous water, another branch road of water water heat exchanger comprises high temperature coolant water inlet pipe and the high temperature coolant rising pipe for the turnover of cyclic high-temperature liquid coolant, the high temperature coolant water inlet pipe all is connected with the high temperature coolant feed pipe with the high temperature coolant rising pipe, described high temperature coolant water inlet pipe and high temperature coolant feed pipe junction are provided with a liquid coolant T-valve, be provided with heat-exchanger pump on described high temperature coolant feed pipe between liquid coolant T-valve and boiler.
Described cryogenic liquid feed pipe and high temperature coolant feed pipe are intersected in an end of total feed pipe, the other end of total feed pipe is connected with the water inlet of engine, described cryogenic liquid return pipe and high temperature coolant return pipe are intersected in an end of total return pipe, and the other end of described total return pipe is connected with the water delivering orifice of engine.
Be respectively equipped with on described high temperature coolant feed pipe and high temperature coolant return pipe for the first switch valve and the second switch valve of controlling high temperature coolant turnover engine, be respectively equipped with the 3rd switch valve and the 4th switch valve of controlling cryogenic liquid turnover engine on described cryogenic liquid feed pipe and cryogenic liquid return pipe.
between described high temperature coolant feed pipe and high temperature coolant return pipe, bridge joint has high temperature short circuit water pipe, between cryogenic liquid feed pipe and cryogenic liquid return pipe, bridge joint has low temperature short circuit water pipe, one end of high temperature short circuit water pipe is connected with the import of the first switch valve, the other end of high temperature short circuit water pipe is connected with the outlet of second switch valve, one end of low temperature short circuit water pipe is connected with the import of the 3rd switch valve, the other end of low temperature short circuit water pipe is connected with the outlet of the 4th switch valve, high temperature short circuit water pipe is provided with the 5th switch valve, low temperature short circuit water pipe is provided with the 6th switch valve.
Be provided with successively the second temperature sensor, flow sensor, proportioning valve along coolant flow direction on described total return pipe.
Described total feed pipe is provided with the first temperature sensor.
Engine oil cooling circulation system of the present utility model shares an oil-water heat exchanger in the process of carrying out the circulation of machine oil liquid circulation and constant temperature machine oil extraneous water.Compared with prior art, the utlity model has following advantage: engine oil cooling circulation system simple in structure, easy to operate, cost performance is high, production cost is low, has wide market outlook.
Further, between oil inlet pipe of the present utility model and flowline, bridge joint has the short circuit oil pipe, in the heat soaking stage, can realize the short On The Cycle Working Process of machine oil.
Further, between high temperature coolant feed pipe and high temperature coolant return pipe, bridge joint has high temperature short circuit water pipe, between cryogenic liquid feed pipe and cryogenic liquid return pipe, bridge joint has low temperature short circuit water pipe, switch by the state to each valve, can realize the cycle control of cold soaking bubble, heat soaking, constant temperature and other state, can manually control, also realization able to programme is controlled automatically.Cooling liquid-cooling circulating system of the present utility model can be realized self-loopa in the heat soaking stage, the liquid coolant heat circulating system can be realized self-loopa in the cold soaking bubble stage, reduced the on-off times to cold water storage cistern and boiler, be of value to the serviceable life that extends cold water storage cistern and boiler, thereby be of value to the serviceable life that extends whole device.
Description of drawings
Fig. 1 is the structural representation of the utility model depth cold-hot impact test device embodiment 1.
Embodiment
The utility model depth cold-hot impact test device embodiment 1, as shown in Figure 1, depth cold-hot impact test comprises cooling liquid-cooling circulating system, liquid coolant heat circulating system, engine oil cooling circulation system.
cooling liquid-cooling circulating system comprises refrigeration unit 11, cold water storage cistern 12, for the cryogenic liquid feed pipe 13 of cryogenic liquid from cold water storage cistern inflow engine 6, flow back to the cryogenic liquid return pipe 14 of cold water storage cistern from transmitter 6 for cryogenic liquid, be respectively equipped with the 3rd switch valve 15 and the 4th switch valve 16 of controlling cryogenic liquid turnover engine on described cryogenic liquid feed pipe 13 and cryogenic liquid return pipe 14, between cryogenic liquid feed pipe 13 and cryogenic liquid return pipe 14, bridge joint has low temperature short circuit water pipe 17, one end of low temperature short circuit water pipe 17 is connected with the import of the 3rd switch valve 15, the other end of low temperature short circuit water pipe 17 is connected with the outlet of the 4th switch valve 16, low temperature short circuit water pipe 17 is provided with the 6th switch valve 18, upstream in low temperature short circuit water pipe 17 and the junction of cryogenic liquid feed pipe 13 on cryogenic liquid feed pipe 13 is provided with water supply pump 19.
the liquid coolant heat circulating system comprises boiler 21, for the high temperature coolant feed pipe 22 of cyclic high-temperature liquid coolant from boiler inflow engine 6, flow back to the high temperature coolant return pipe 23 of boiler from transmitter 6 for the cyclic high-temperature liquid coolant, water water heat exchanger 24, water water heat exchanger 24 is provided with two branch roads, a branch road of water water heat exchanger 24 comprises a pair of the second extraneous water water inlet pipe 251 and the second extraneous water rising pipe 252 for the turnover of circulation extraneous water, another branch road of water water heat exchanger 24 comprises high temperature coolant water inlet pipe 261 and the high temperature coolant rising pipe 262 for the turnover of cyclic high-temperature liquid coolant, high temperature coolant water inlet pipe 261 all is connected with high temperature coolant feed pipe 22 with high temperature coolant rising pipe 262, high temperature coolant water inlet pipe 261 and high temperature coolant feed pipe 22 junctions are provided with a liquid coolant T-valve 27, be provided with heat-exchanger pump 280 on high temperature coolant feed pipe 22 between liquid coolant T-valve 27 and boiler 21, be respectively equipped with on high temperature coolant feed pipe 22 and high temperature coolant return pipe 23 for the first switch valve 28 and the second switch valve 29 of controlling high temperature coolant turnover engine 6, between high temperature coolant feed pipe 22 and high temperature coolant return pipe 23, bridge joint has high temperature short circuit water pipe 2010, one end of high temperature short circuit water pipe is connected with the import of the first switch valve, the other end of high temperature short circuit water pipe is connected with the outlet of second switch valve, high temperature short circuit water pipe is provided with the 5th switch valve 2011.
Cryogenic liquid feed pipe 13 and high temperature coolant feed pipe 22 are intersected in an end of total feed pipe 91, the other end of total feed pipe 91 is connected with the water inlet of engine 6, described cryogenic liquid return pipe 14 and high temperature coolant return pipe 23 are intersected in an end of total return pipe 92, and the other end of total return pipe 92 is connected with the water delivering orifice of engine 6.Be provided with successively the second temperature sensor 921, flow sensor 922, proportioning valve 923 along coolant flow direction on total return pipe 92.Total feed pipe is provided with the first temperature sensor 911.
engine oil cooling circulation system comprises oil-water heat exchanger 31, oil-water heat exchanger 31 is provided with three branch roads, the first branch road of oil-water heat exchanger 31 comprises a pair of oil inlet pipe 32 for circulation machine oil turnover oil-water heat exchanger, flowline 33, the second branch road of oil-water heat exchanger 31 comprises a pair of the first extraneous water water inlet pipe 34 for circulation extraneous water turnover oil-water heat exchanger, the first extraneous water rising pipe 35, the 3rd branch road of oil-water heat exchanger 31 comprises a pair of cryogenic liquid water inlet pipe 36 for circulation cryogenic liquid turnover oil-water heat exchanger, cryogenic liquid rising pipe 37, be equipped with an extraneous water switch valve 39 of controlling extraneous water turnover oil-water heat exchanger on the first extraneous water water inlet pipe 34 and the first extraneous water rising pipe 35, be equipped with a cryogenic liquid switch valve 3010 of controlling cryogenic liquid turnover oil-water heat exchanger on cryogenic liquid water inlet pipe 36 and cryogenic liquid rising pipe 37, cryogenic liquid water inlet pipe 36 all is connected with cryogenic liquid return pipe 14 with cryogenic liquid rising pipe 37, between oil inlet pipe 32 and flowline 33, bridge joint has a short circuit oil pipe 3011, the junction of short circuit oil pipe 3011 and flowline 33 is provided with an oil circuit T-valve 3012.
The course of work of the utility model embodiment 1 comprises three phases: cold soaking bubble stage, heat soaking stage and the constant temperature stage.The utlity model has following work prerequisite: cold water storage cistern 12 and boiler 21 are interior all has liquid level sensor that its liquid level is controlled automatically, and scarce liquid has alarm; Freezing unit 11 has the automatic control function of design temperature, and carries out automatic cold exchange cycles by ebullator and cold water storage cistern 12; Be provided with well heater and temperature sensor in boiler 21, and automatic control function is arranged.
1. cold soaking steeps the stage
Be mainly to realize cold soaking bubble below engine coolant-35 ℃ and the cold function of following of machine oil, have following requirement: oil circuit T-valve 3012 and liquid coolant T-valve 27 all are in initial pass-through state, proportioning valve 923 place's full gate degree states; Water supply pump 19 carries out the variable frequency control of flow by flow sensor 922.
The liquid coolant thermal cycle course of work: the high temperature coolant in boiler 21 carries out self-loopa by heat-exchanger pump 280 and the 5th switch valve 2011; At this moment, the 5th switch valve 2011 is in open mode, and the first switch valve 28 and second switch valve 29 are in closed condition, realize the self-loopa of high temperature coolant.
Cooling liquid cooling On The Cycle Working Process: the cryogenic liquid of cold water storage cistern 12 is by water supply pump 19 and the 3rd switch valve 15 and the 4th switch valve 16 and cycle of engine; At this moment, the 6th switch valve 18 is in closed condition, and the 3rd switch valve 15 and the 4th switch valve 16 are in open mode, realize the cold circulation of cryogenic liquid.
The cold On The Cycle Working Process of machine oil: liquid coolant provides cold medium for oil-water heat exchanger 31 by cryogenic liquid switch valve 3010, realizes the cold circulation of machine oil; At this moment, extraneous water switch valve 39 is all located closed condition; Cryogenic liquid switch valve 3010 is all located full-gear.
2. heat soaking stage
Mainly realize the heat soaking function under 140 ℃ of engine coolants, require as follows: proportioning valve 923 place's full gate degree states; Heat-exchanger pump 280 carries out the variable frequency control of flow by flow sensor 922.
The liquid coolant thermal cycle course of work: the high temperature coolant of boiler 21 is by heat-exchanger pump 280 and the first switch valve 28, second switch valve 29 and cycle of engine; At this moment, the 5th switch valve 2011 place's closed conditions, the first switch valve 28 and second switch valve 29 are all located full-gear, realize the thermal cycle of high temperature coolant; During the high temperature coolant excess Temperature, the aperture of precision controlling cooling liquid T-valve 27 is carried out exchange heat with water water heat exchanger 24, guarantees the precision of High-temperature cooling liquid temp.
Cooling liquid cooling On The Cycle Working Process: the cryogenic liquid of cold water storage cistern 12 is by water supply pump 19 and the 6th switch valve 18 self-loopas; The 6th switch valve 18 is in full-gear, and the 3rd switch valve 15 and the 4th switch valve 16 are all located closed condition.
The short On The Cycle Working Process of machine oil: by switching the state of oil circuit T-valve 3012, the machine oil oil-water heat exchanger 31 of not flowing through is realized the short circulation of engine motor oil; At this moment, extraneous water switch valve 39, cryogenic liquid switch valve 3010 are all located closed condition.
3. constant temperature stage
Boiler 21 participation work, the heating-up temperature of the well heater of boiler 21 is the setting value of water inflow of the engine temperature, freezing unit 11 no powers use extraneous water (tap water) as heat eliminating medium, and liquid coolant, machine oil are carried out cycle control, to save electric energy.
the liquid coolant thermal cycle course of work: high temperature coolant flows out from engine water outlet, through proportioning valve 923, second switch valve 29 flows back to boiler, then high temperature coolant flows out from the water delivering orifice of boiler 21, after flowing through liquid coolant T-valve 27, high temperature coolant is divided into two-way, compare according to the actual inflow temperature of engine and the water inflow of the engine temperature value of setting, aperture to liquid coolant T-valve 27 is regulated control, wherein one the tunnel through high temperature coolant water inlet pipe 261, water water heat exchanger 24, high temperature coolant rising pipe 262 carries out cooling, another road directly flows to the first switch valve 28, two-way is realized converging in the upstream of the first switch valve 28, then high temperature coolant flows to the water inlet of engine, complete circulation.Carry out regulation by pressure transducer Comparative Examples valve 923, realize the control of engine hydraulic pressure; Heat-exchanger pump 280 carries out the variable frequency control of flow by flow sensor 922.Can realize realizing the constant temperature circulating of high temperature coolant.
Constant temperature machine oil On The Cycle Working Process: by regulating the aperture of oil circuit T-valve 3012, the machine oil part oil-water heat exchanger 31 of flowing through carries out cooling, a part is the flow direction engine oil-in directly, realize the temperature control of engine motor oil, at this moment, extraneous water switch valve 39 is all located full-gear, and cryogenic liquid switch valve 3010 is all located closed condition, and extraneous water is as the heat eliminating medium of oil-water heat exchanger 31.
Above-described embodiment 1 in use switches by the state to each valve, can realize the cycle control of cold soaking bubble, heat soaking, constant temperature and other state, can manually control, and also realization able to programme is controlled automatically.
Outside 1, in other embodiment of the present utility model, the cryogenic liquid water inlet pipe of the 3rd branch road of oil-water heat exchanger can also all be connected with the cryogenic liquid feed pipe with the cryogenic liquid rising pipe in addition to the implementation.
Claims (8)
1. depth cold-hot impact test device, comprise cooling liquid-cooling circulating system, engine oil cooling circulation system, described cooling liquid-cooling circulating system comprises refrigeration unit, cold water storage cistern, for the cryogenic liquid feed pipe of cryogenic liquid from the cold water storage cistern inflow engine, flow back to the cryogenic liquid return pipe of cold water storage cistern from transmitter for cryogenic liquid, described engine oil cooling circulation system comprises oil-water heat exchanger, described oil-water heat exchanger is provided be used to the branch road that carries out heat interchange, the branch road of oil-water heat exchanger comprises the first branch road for circulation machine oil turnover oil-water heat exchanger, the first branch road has a pair of oil inlet pipe, flowline, it is characterized in that: the branch road of described oil-water heat exchanger also comprises for circulation extraneous water turnover oil-water heat exchanger the second branch road, the 3rd branch road for circulation cryogenic liquid turnover oil-water heat exchanger, the second branch road comprises the first extraneous water water inlet pipe, the first extraneous water rising pipe, the 3rd branch road comprises the cryogenic liquid water inlet pipe, the cryogenic liquid rising pipe, be equipped with the extraneous water switch valve of controlling the second branch road break-make on described the first extraneous water water inlet pipe and the first extraneous water rising pipe, be equipped with the cryogenic liquid switch valve of controlling the 3rd branch road break-make on described cryogenic liquid water inlet pipe and cryogenic liquid rising pipe, described cryogenic liquid water inlet pipe all is connected with cryogenic liquid feed pipe or cryogenic liquid return pipe with the cryogenic liquid rising pipe.
2. depth cold-hot impact test device according to claim 1, it is characterized in that: between described oil inlet pipe and flowline, bridge joint has the short circuit oil pipe, and the junction of described short circuit oil pipe and flowline is provided with an oil circuit T-valve.
3. depth cold-hot impact test device according to claim 1 and 2, it is characterized in that: also comprise the liquid coolant heat circulating system, described liquid coolant heat circulating system comprises boiler, for the high temperature coolant feed pipe of cyclic high-temperature liquid coolant from the boiler inflow engine, flow back to the high temperature coolant return pipe of boiler from transmitter for the cyclic high-temperature liquid coolant, the water water heat exchanger, described water water heat exchanger is provided with two branch roads, a branch road of water water heat exchanger comprises a pair of the second extraneous water water inlet pipe and the second extraneous water rising pipe for the turnover of circulation extraneous water, another branch road of water water heat exchanger comprises high temperature coolant water inlet pipe and the high temperature coolant rising pipe for the turnover of cyclic high-temperature liquid coolant, the high temperature coolant water inlet pipe all is connected with the high temperature coolant feed pipe with the high temperature coolant rising pipe, described high temperature coolant water inlet pipe and high temperature coolant feed pipe junction are provided with a liquid coolant T-valve, be provided with heat-exchanger pump on described high temperature coolant feed pipe between liquid coolant T-valve and boiler.
4. depth cold-hot impact test device according to claim 3, it is characterized in that: described cryogenic liquid feed pipe and high temperature coolant feed pipe are intersected in an end of total feed pipe, the other end of total feed pipe is connected with the water inlet of engine, described cryogenic liquid return pipe and high temperature coolant return pipe are intersected in an end of total return pipe, and the other end of described total return pipe is connected with the water delivering orifice of engine.
5. depth cold-hot impact test device according to claim 4, it is characterized in that: be respectively equipped with on described high temperature coolant feed pipe and high temperature coolant return pipe for the first switch valve and the second switch valve of controlling high temperature coolant turnover engine, be respectively equipped with the 3rd switch valve and the 4th switch valve of controlling cryogenic liquid turnover engine on described cryogenic liquid feed pipe and cryogenic liquid return pipe.
6. depth cold-hot impact test device according to claim 5, it is characterized in that: between described high temperature coolant feed pipe and high temperature coolant return pipe, bridge joint has high temperature short circuit water pipe, between cryogenic liquid feed pipe and cryogenic liquid return pipe, bridge joint has low temperature short circuit water pipe, one end of high temperature short circuit water pipe is connected with the import of the first switch valve, the other end of high temperature short circuit water pipe is connected with the outlet of second switch valve, one end of low temperature short circuit water pipe is connected with the import of the 3rd switch valve, the other end of low temperature short circuit water pipe is connected with the outlet of the 4th switch valve, high temperature short circuit water pipe is provided with the 5th switch valve, low temperature short circuit water pipe is provided with the 6th switch valve.
7. depth cold-hot impact test device according to claim 6, is characterized in that: be provided with successively the second temperature sensor, flow sensor, proportioning valve along coolant flow direction on described total return pipe.
8. depth cold-hot impact test device according to claim 7, it is characterized in that: described total feed pipe is provided with the first temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614163 CN202928801U (en) | 2012-11-20 | 2012-11-20 | Deep thermal shock test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220614163 CN202928801U (en) | 2012-11-20 | 2012-11-20 | Deep thermal shock test device |
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| CN202928801U true CN202928801U (en) | 2013-05-08 |
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| CN 201220614163 Expired - Lifetime CN202928801U (en) | 2012-11-20 | 2012-11-20 | Deep thermal shock test device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266840A (en) * | 2014-10-11 | 2015-01-07 | 中国第一汽车股份有限公司 | Deep thermal shock testing device of heavy-duty engine |
| CN104792538A (en) * | 2015-04-28 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Water temperature adjusting loop of engine |
| CN106997218A (en) * | 2017-05-19 | 2017-08-01 | 堀场仪器（上海）有限公司 | A kind of multi-temperature control system |
| CN110044630A (en) * | 2019-04-27 | 2019-07-23 | 武汉东测科技有限责任公司 | A kind of RDE standard analog detection rack system and its test method |
| CN110609579A (en) * | 2019-09-29 | 2019-12-24 | 吉林化工学院 | Water constant temperature control method and device for engine test bed |
| CN112629865A (en) * | 2020-12-30 | 2021-04-09 | 重庆隆鑫通航发动机制造有限公司 | Temperature impact experiment system and method for testing durability of engine |
| CN114812092A (en) * | 2022-04-24 | 2022-07-29 | 华域汽车电动系统有限公司 | Automatic cooling water path switching device for motor test |
-
2012
- 2012-11-20 CN CN 201220614163 patent/CN202928801U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266840A (en) * | 2014-10-11 | 2015-01-07 | 中国第一汽车股份有限公司 | Deep thermal shock testing device of heavy-duty engine |
| CN104792538A (en) * | 2015-04-28 | 2015-07-22 | 安徽江淮汽车股份有限公司 | Water temperature adjusting loop of engine |
| CN106997218A (en) * | 2017-05-19 | 2017-08-01 | 堀场仪器（上海）有限公司 | A kind of multi-temperature control system |
| CN110044630A (en) * | 2019-04-27 | 2019-07-23 | 武汉东测科技有限责任公司 | A kind of RDE standard analog detection rack system and its test method |
| CN110609579A (en) * | 2019-09-29 | 2019-12-24 | 吉林化工学院 | Water constant temperature control method and device for engine test bed |
| CN112629865A (en) * | 2020-12-30 | 2021-04-09 | 重庆隆鑫通航发动机制造有限公司 | Temperature impact experiment system and method for testing durability of engine |
| CN112629865B (en) * | 2020-12-30 | 2023-12-12 | 重庆隆鑫通航发动机制造有限公司 | Temperature impact experiment system and method for testing durability of engine |
| CN114812092A (en) * | 2022-04-24 | 2022-07-29 | 华域汽车电动系统有限公司 | Automatic cooling water path switching device for motor test |
| CN114812092B (en) * | 2022-04-24 | 2023-11-21 | 华域汽车电动系统有限公司 | A automatic switching device in cooling water route for motor test |
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