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.