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CN102777582A - Cooling system of automatic transmission - Google Patents

Cooling system of automatic transmission Download PDF

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Publication number
CN102777582A
CN102777582A CN2012102956256A CN201210295625A CN102777582A CN 102777582 A CN102777582 A CN 102777582A CN 2012102956256 A CN2012102956256 A CN 2012102956256A CN 201210295625 A CN201210295625 A CN 201210295625A CN 102777582 A CN102777582 A CN 102777582A
Authority
CN
China
Prior art keywords
oil
automatic transmission
oil cooler
cooler
pipe
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2012102956256A
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Chinese (zh)
Inventor
周广凤
李剑
龚跃年
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Heavy Duty Truck Group Jinan Power Co Ltd
Original Assignee
China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China National Heavy Duty Truck Group Jinan Power Co Ltd filed Critical China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority to CN2012102956256A priority Critical patent/CN102777582A/en
Publication of CN102777582A publication Critical patent/CN102777582A/en
Pending legal-status Critical Current

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Abstract

本发明公开了一种自动变速器冷却系统,本发明包括自动变速器和油冷器,自动变速器内设有油槽和油泵,油槽和油冷器通过油泵、进油管和回油管连接成一个循环油路,所述的进油管和回油管上均设有阻流管段,阻流管段高于油冷器。本发明通过增设阻流管段,在不改变自动变速器和油冷器的安装位置的情况下,能增大了自动变速器油从油冷器向自动变速器回流阻力,防止其回流,很好的解决了自动变速器油冷器与自动变速器高低布置时自动变速器的溢油问题,解决了因溢油而引起的自动变速器油量过少、油温过高,继而导致的自动变速器烧坏问题。

Figure 201210295625

The invention discloses an automatic transmission cooling system. The invention comprises an automatic transmission and an oil cooler. An oil tank and an oil pump are arranged in the automatic transmission. The oil tank and the oil cooler are connected to form a circulating oil circuit through an oil pump, an oil inlet pipe and an oil return pipe. Both the oil inlet pipe and the oil return pipe are provided with choke pipe sections, and the choke pipe sections are higher than the oil cooler. The present invention can increase the backflow resistance of the automatic transmission oil from the oil cooler to the automatic transmission by adding a blocking pipe section without changing the installation positions of the automatic transmission and the oil cooler, and prevent its backflow, which is a good solution When the automatic transmission oil cooler and the automatic transmission are arranged at a high level, the oil overflow problem of the automatic transmission solves the problem of automatic transmission burnout caused by too little oil and high oil temperature caused by oil overflow.

Figure 201210295625

Description

A kind of automatic transmission cooling system
Technical field
The present invention relates to a kind of automobile component, particularly a kind of automatic transmission cooling system.
Background technique
Existing heavily card has the automatic transmission type of cooling to mainly contain water-cooled and air-cooled, and multiple cooling system arrangement is also arranged accordingly.Higher for last dress to chassis length and width and spatial requirement, need the chassis integrated vehicle of trying one's best, can the cooler of motor and automatic transmission is integrated, reduce as far as possible its take up space.This scheme lies in a horizontal plane in the motor top with motor intercooler and automatic transmission oil cooler, and automatic transmission is placed between one, two bridges of car load, is lower than about automatic transmission oil cooler 800mm.Promptly can reduce motor and the automatic transmission cooling system takes up space, can make full use of the auxiliary automatic transmission fluid cooling of motor air cooling system again, energy efficient improves cooling effectiveness, is a kind of energy-conservation, cooling system efficiently.Yet; This automatic transmission fluid cooling system exists cooler to be higher than automatic transmission; After, the pressure release out of service when automatic transmission; The oil in the oil cooler is easy in automatic transmission, reflux under the acting in conjunction of factors such as pressure and siphonage in gravity, oil cooler, if do not deal carefully with, oil may overflow from automatic transmission.
Summary of the invention
The technical problem that the present invention will solve is: provide automatic transmission fluid after a kind of automatic transmission pressure release to be difficult for the automatic transmission cooling system that refluxes.
In order to solve the problems of the technologies described above; The present invention includes automatic transmission and oil cooler; Be provided with oil groove and oil pump in the automatic transmission; Oil groove and oil cooler connect into a circulating oil path through oil pump, oil inlet pipe and return tube, are equipped with the choked flow pipeline section on described oil inlet pipe and the return tube, and the choked flow pipeline section is higher than oil cooler.
For the ease of making, described choked flow pipeline section is the n font, and the horizontal segment of n font is higher than oil cooler.
In order to improve cooling effect; Described oil cooler comprises oil cooler A and oil cooler B; Oil cooler A and oil cooler B separation; The outlet of oil cooler A is connected through high-pressure oil pipe with the import of oil cooling B, and oil inlet pipe connects the import of oil cooler A and the outlet of oil pump, and return tube connects outlet and the oil groove import of oil cooler B.
For the ease of refueling to oil cooler; The outlet of described oil cooler A is connected with an end of high-pressure oil pipe through hollow bolt; The import of oil cooler B is connected through threeway with the other end of high-pressure oil pipe; The import of oil cooler B and the other end of high-pressure oil pipe are connected on the mouth of pipe of threeway through a hollow bolt respectively, and the threeway another one mouth of pipe is provided with bleeder screw.Open the bleeder screw venting during oiling.
The invention has the beneficial effects as follows: the present invention is through setting up the choked flow pipeline section; Under the situation of the mounting point that does not change automatic transmission and oil cooler; Can increase automatic transmission fluid from oil cooler to the automatic transmission resistance that refluxes, prevent that it from refluxing, the oil spilling problem of automatic transmission when well having solved automatic transmission oil cooler and automatic transmission and just arranging; It is too high to have solved very few, the oily temperature of the automatic transmission oil mass that causes because of oil spilling, and the automatic transmission that causes then burns out problem.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Among the figure: 1, oil cooler A, 2, oil cooler B, 3, oil cooler A import, 4, oil cooler A outlet, 5, high-pressure oil pipe; 6, oil cooler B import, 7, oil cooler B outlet, 8, n type metal bends, 9, return tube, 10, n type metal bends; 11, oil inlet pipe, 12, elbow bend, 13, automatic transmission, 14, the automatic transmission oil outlet; 15, automatic transmission return opening, 16, elbow bend, 17, oil pump, 18, oil groove.
Embodiment
A kind of specific embodiment as shown in Figure 1, it comprises oil cooler A1, oil cooler B2 and automatic transmission 13, is provided with oil pump 17 and oil groove 18 in the automatic transmission 13.Automatic transmission 13 is provided with automatic transmission oil outlet 14 and automatic transmission return opening 15.Oil pump 17 connects automatic transmission oil outlet 14 and oil groove 18, and automatic transmission return opening 15 connects oil groove 18.
Automatic transmission oil outlet 14 connects oil cooler A import 3 through oil inlet pipe 11; One end of oil inlet pipe 11 is provided with n type metal bends 10; The other end of oil inlet pipe 11 is provided with elbow bend 12, and elbow bend 12 is connected with automatic transmission oil outlet 14, and n type metal bends 10 is connected with oil cooler A import 3.
Oil cooler A outlet 4 is connected with oil cooler B import 6 through high-pressure oil pipe 5.Utilize hollow bolt with in 5 one sections fixed oil coolers of high-pressure oil pipe A outlet 4; The other end of oil cooler B import 6 and high-pressure oil pipe 5 is connected through threeway; The other end of oil cooler B import 6 and high-pressure oil pipe 5 is connected on the mouth of pipe of threeway through a hollow bolt respectively, and the threeway another one mouth of pipe is provided with bleeder screw 5.
Automatic transmission return opening 15 and oil cooler B outlet 7 is connected through return tube 9.One end of return tube 9 is provided with n type metal bends 8, and the other end of return tube 9 is provided with elbow bend 16.Elbow bend 16 is connected with automatic transmission return opening 15, and n type metal bends 8 is connected with oil cooler B outlet 7.
N type metal bends 8 all is higher than two oil coolers with n type metal bends 10 middle horizontal pipeline sections.
When automatic transmission 13 runs well; Fluid in the oil groove 18 of automatic transmission 13 is pressed among the oil cooler A1 through elbow bend 12, oil inlet pipe 11, n type metal bends 10 under oil pump 17 effects; At first in oil cooler A1, cool off; The automatic transmission fluid of preliminary heat radiation is got among the oil cooler B2 through high-pressure oil pipe 5 by oil cooler A1 outlet; In oil cooler B2, after the cooling, get into automatic transmission return opening 15, realize a cool cycles through n type metal bends 8, return tube 9, elbow bend 16.After automatic transmission 13 is out of service; Pressure in the automatic transmission is through the exhaust port pressure release; Automatic transmission is advanced, the pressure of return tube inner fluid is higher than the pressure in the automatic transmission; Therefore advance, the return tube inner fluid refluxes to the lower automatic transmission of pressure, the pressure in the automatic transmission oil cooler is higher than the pressure in the automatic transmission, so the trend that refluxes of the oriented automatic transmission of the fluid in the automatic transmission oil cooler; But be back to n type metal bends 10 or n type metal bends 8 places; The pressure difference deficiency is crossed the transverse tube of n type metal bends so that fluid is climbed, and makes fluid stop to reflux, and advances, the backflow and the vent pressure release of return tube inner fluid make the pressure in automatic transmission, metal bends, high-pressure oil pipe, the automatic transmission oil cooler reach a new balance; And keep this balance, prevented effectively that fluid in the oil cooler from refluxing and the oil spilling that causes in automatic transmission.

Claims (4)

1. automatic transmission cooling system; Comprise automatic transmission and oil cooler; Be provided with oil groove and oil pump in the automatic transmission; Oil groove and oil cooler connect into a circulating oil path through oil pump, oil inlet pipe and return tube, it is characterized in that: be equipped with the choked flow pipeline section on described oil inlet pipe and the return tube, the choked flow pipeline section is higher than oil cooler.
2. automatic transmission cooling system according to claim 1 is characterized in that: described choked flow pipeline section is the n font, and the horizontal segment of n font is higher than oil cooler.
3. require 1 or 2 described automatic transmission cooling systems according to power; It is characterized in that: described oil cooler comprises oil cooler A and oil cooler B; Oil cooler A and oil cooler B separation; The outlet of oil cooler A is connected through high-pressure oil pipe with the import of oil cooling B, and oil inlet pipe connects the import of oil cooler A and the outlet of oil pump, and return tube connects outlet and the oil groove import of oil cooler B.
4. automatic transmission cooling system according to claim 3; It is characterized in that: the outlet of described oil cooler A is connected with an end of high-pressure oil pipe through hollow bolt; The import of oil cooler B is connected through threeway with the other end of high-pressure oil pipe; The import of oil cooler B and the other end of high-pressure oil pipe are connected on the mouth of pipe of threeway through a hollow bolt respectively, and the threeway another one mouth of pipe is provided with bleeder screw.
CN2012102956256A 2012-08-20 2012-08-20 Cooling system of automatic transmission Pending CN102777582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012102956256A CN102777582A (en) 2012-08-20 2012-08-20 Cooling system of automatic transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012102956256A CN102777582A (en) 2012-08-20 2012-08-20 Cooling system of automatic transmission

Publications (1)

Publication Number Publication Date
CN102777582A true CN102777582A (en) 2012-11-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103322176A (en) * 2013-06-09 2013-09-25 盛瑞传动股份有限公司 Interface of oil cooler
CN105221719A (en) * 2015-11-09 2016-01-06 阿尔特汽车技术股份有限公司 Automobile oil cooler structure
CN109506839A (en) * 2018-09-13 2019-03-22 湖南吉盛国际动力传动系统有限公司 A transmission circulating oil automatic transfer measuring workbench

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238929A (en) * 1978-06-27 1980-12-16 Nissan Motor Company, Limited Arrangement to cool oil in hydraulic control system of automatic transmission for industrial vehicle
JP2000046156A (en) * 1998-07-28 2000-02-18 Nissan Motor Co Ltd Hydraulic oil cooling device for automatic transmission for vehicles
JP2000356261A (en) * 1999-06-16 2000-12-26 Suzuki Motor Corp Oil cooler structure of automatic transmission
CN1294989A (en) * 2000-12-21 2001-05-16 上海交通大学 Adsorbed air contioner for driver's cab of diesel locomotive
US20040204281A1 (en) * 2001-03-09 2004-10-14 Jatco Ltd Cooling system for working fluid used in automatic transmission of automotive vehicle
CN201982635U (en) * 2011-03-28 2011-09-21 长城汽车股份有限公司 Cooling device for automobile automatic transmission
CN202768799U (en) * 2012-08-20 2013-03-06 中国重汽集团济南动力有限公司 Automatic gearbox cooling system

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238929A (en) * 1978-06-27 1980-12-16 Nissan Motor Company, Limited Arrangement to cool oil in hydraulic control system of automatic transmission for industrial vehicle
JP2000046156A (en) * 1998-07-28 2000-02-18 Nissan Motor Co Ltd Hydraulic oil cooling device for automatic transmission for vehicles
JP2000356261A (en) * 1999-06-16 2000-12-26 Suzuki Motor Corp Oil cooler structure of automatic transmission
CN1294989A (en) * 2000-12-21 2001-05-16 上海交通大学 Adsorbed air contioner for driver's cab of diesel locomotive
US20040204281A1 (en) * 2001-03-09 2004-10-14 Jatco Ltd Cooling system for working fluid used in automatic transmission of automotive vehicle
CN201982635U (en) * 2011-03-28 2011-09-21 长城汽车股份有限公司 Cooling device for automobile automatic transmission
CN202768799U (en) * 2012-08-20 2013-03-06 中国重汽集团济南动力有限公司 Automatic gearbox cooling system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103322176A (en) * 2013-06-09 2013-09-25 盛瑞传动股份有限公司 Interface of oil cooler
CN105221719A (en) * 2015-11-09 2016-01-06 阿尔特汽车技术股份有限公司 Automobile oil cooler structure
CN109506839A (en) * 2018-09-13 2019-03-22 湖南吉盛国际动力传动系统有限公司 A transmission circulating oil automatic transfer measuring workbench

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Application publication date: 20121114