CN204226184U - ATF pump - Google Patents

Abstract

The utility model belongs to hydraulic components, in particular to an automatic transmission oil pump. The housing (7) is respectively equipped with gears. The side is the second oil discharge chamber (13), the left side of the meshing part of the gear two (12) and the third gear (9) is the oil discharge chamber one (5), the right side is the oil suction chamber two (10), and the oil discharge chamber one (5 ) is connected to pipeline two (6), oil suction chamber two (10) is connected to pipeline four (11), pipeline two (6) and pipeline four (11) are connected to the oil pool (8), oil suction chamber one (3 ) is connected to pipeline one (4), pipeline one (4) is connected to high pressure system A, oil discharge chamber two (13) is connected to pipeline three (14), pipeline three (14) is connected to low pressure system B, pipeline one ( 4) It is connected with the third pipeline (14) with the communication pipeline (15). A one-way valve (1) is installed in the middle of the communication pipeline (15). The automatic transmission oil pump adopts a double working mode, so that the transmission efficiency of the automatic transmission is improved. Greatly improved and improved the durability of the oil pump.

Description

automatic transmission oil pump

technical field

The utility model belongs to hydraulic components, in particular to an automatic transmission oil pump.

Background technique

With the improvement of people's requirements for car driving comfort, the popularity of automatic transmissions in cars at home and abroad has also increased. More and more attention has been paid to the miniaturization of automatic transmissions and the reduction of energy consumption. The transmission oil pump is driven by the engine output shaft, and the speed of the oil pump increases with the increase of the engine speed. Under certain working conditions, the engine works at a high speed, and the flow output of the oil pump is very large, but the systems of the automatic transmission do not need so much oil, and the energy is wasted.

Contents of the invention

The purpose of the utility model is to overcome the above technical deficiencies and provide an automatic transmission oil pump with compact structure, dual working modes and reduced energy consumption.

The technical solution adopted by the utility model to solve the technical problem is: the automatic transmission oil pump includes a one-way valve, a housing, a gear one, a gear two, a gear three, an oil suction chamber one, an oil suction chamber two, an oil discharge chamber one, an oil discharge chamber two, Connecting pipelines and oil pools, its characteristic is that gear 1, gear 2, and gear 3 are respectively installed in the housing, and between gear 1 and gear 2, and between gear 2 and gear 3 are meshing transmission connections, and gear 1 and gear 2 The left side of the meshing part is the oil suction chamber 1, the right side is the oil discharge chamber 2, the left side of the gear 2 meshing with the gear 3 is the oil discharge chamber 1, the right side is the oil suction chamber 2, the oil discharge chamber 1 is connected to the pipeline 2, and the oil suction chamber 2 is connected to pipeline 4, pipeline 2 and pipeline 4 are connected to the oil pool together, oil suction chamber 1 is connected to pipeline 1, pipeline 1 is connected to the high-pressure system, oil discharge chamber 2 is connected to pipeline 3, and pipeline 3 is connected to the low-pressure system, The first pipeline and the third pipeline are connected by a communication pipeline, and a check valve is installed in the middle of the communication pipeline.

The beneficial effects of the utility model are: the automatic transmission oil pump adopts the double working mode, the power consumed by the oil pump will be significantly reduced, so that the transmission efficiency of the automatic transmission is greatly improved, and the fuel efficiency of the vehicle is further improved. The load of the pump is also reduced, thereby improving the durability of the oil pump.

Description of drawings

The following will be described in detail with embodiments in conjunction with the accompanying drawings.

Figure 1 is a structural diagram of an automatic transmission oil pump.

In the figure, 1-one-way valve; 2-gear one; 3-oil suction chamber one; 4-pipeline one; 5-oil discharge chamber one; 6-pipeline two; 7-housing; 8-oil pool; 9 -Gear three; 10-Oil suction chamber two; 11-Pipeline four; 12-Gear two; 13-Oil discharge chamber two; 14-Pipeline three;

Detailed ways

Embodiment, with reference to accompanying drawing 1, the casing 7 of automatic transmission oil pump is respectively equipped with gear one 2, gear two 12, gear three 9, between gear one 2 and gear two 12, between gear two 12 and gear three 9 Both are mesh drive connections. The left side of the gear 1 2 meshing with the gear 2 12 is the oil suction chamber 1 3, and the right side is the oil discharge chamber 2 13, the oil suction chamber 1 3 is connected to the pipeline 2 6, the oil suction chamber 2 10 is connected to the pipeline 4 11, and the pipeline 2 6 Connect the oil pool 8 together with the pipeline four 11. Oil discharge chamber one 5 is connected to pipeline one 4, pipeline one 4 is connected to high pressure system A, oil discharge chamber two 13 is connected to pipeline three 14, pipeline three 14 is connected to low pressure system B, and pipeline one 4 and pipeline three 14 are connected They are connected with a communication pipeline 15, and a check valve 1 is installed in the middle of the communication pipeline 15.

The working process of the automatic transmission oil pump is: when working, the drive shaft or sprocket of the transmission drives gear 1 to rotate in the direction shown in Figure 1. At this time, gear 1 2 drives gear 2 12 to rotate, gear 2 12 drives gear 3 9 to rotate, and oil is sucked Chamber one 3 and oil suction chamber two 10 extract oil from the oil pool 8 through pipeline two 6 and pipeline four 11 respectively, and oil discharge chamber one 5 supplies high-pressure oil to the high-pressure system A of the automatic transmission through pipeline one 4. The oil required by high-pressure system A is used for the control clutch and control valve of mechanical automatic transmission, dual-clutch automatic transmission, or the high-pressure oil required for the pulley hydraulic cylinder of continuously variable transmission. The oil discharge chamber 2 13 passes through the pipeline 3 14 Provide low-pressure oil to the low-pressure system B of the automatic transmission. The low-pressure system B is used for cooling and lubricating the transmission. Under special conditions, such as low engine speed, the flow of high-pressure oil required by the high-pressure system A may be insufficient Therefore, it is necessary to control the pressure in the pipeline three 14 of the low-pressure system B to be higher than the pressure in the pipeline one 4 of the high-pressure system A through the transmission valve block, and the oil in the pipeline three 14 is supplied to the pipeline one through the check valve 1 4 in.

Claims (1)

1. an ATF pump, comprises one-way valve (1), housing (7), gear one (2), gear two (12), gear three (9), oil sucting cavity one (3), oil sucting cavity two (10), oil-discharging cavity one (5), oil-discharging cavity two (13), connecting pipeline (15), oil sump (8), is characterized in that, in housing (7), gear one (2) is housed respectively, gear two (12), gear three (9), between gear one (2) and gear two (12), being between gear two (12) and gear three (9) and being connected by meshing transmission, is oil sucting cavity one (3) on the left of gear one (2) and gear two (12) engagement place, right side is oil-discharging cavity two (13), is oil-discharging cavity one (5) on the left of gear two (12) and gear three (9) engagement place, right side is oil sucting cavity two (10), oil-discharging cavity one (5) connecting pipeline two (6), oil sucting cavity two (10) connecting pipeline four (11), pipeline two (6) is connected oil sump (8) in the lump with pipeline four (11), oil sucting cavity one (3) connecting pipeline one (4), pipeline one (4) connects high-pressure system A, oil-discharging cavity two (13) connecting pipeline three (14), pipeline three (14) connects low service system B, be connected with connecting pipeline (15) between pipeline one (4) with pipeline three (14), in the middle of connecting pipeline (15), one-way valve (1) be housed.