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Automobile engine cooling water pump

A technology of automobile engine and cooling water pump, which is applied in the direction of engine cooling, engine components, machines/engines, etc. It can solve problems such as single transmission force, many cavitation problems, and belt slippage, so as to reduce moment of inertia, small layout space, The effect of lightening the overall mass

Inactive Publication Date: 2008-12-31
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, most of the water inlets of automobile engine water pumps are on the water pump shell, with a single water outlet; most of the water pump impellers are metal impellers, and there are many cavitation problems; most of the water pumps are driven by belts, the transmission force is single, and it is easy to cause belt slippage ; There are many problems with abnormal noise of the water pump

Method used

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  • Automobile engine cooling water pump
  • Automobile engine cooling water pump

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Embodiment Construction

[0016] Such as figure 1 , 2 As shown, a cooling water pump for an automobile engine includes a water pump casing 4 combined with an engine block 8, and the water pump casing 4 is combined with the cylinder block 8 to form a closed cavity, and a water pump impeller 3 driven by a water pump wheel shaft 6 and The water inlet 9 is arranged on the engine block 8 . Two water outlets, ie, a first water outlet 1 and a second water outlet 2 , are respectively arranged on both sides of the water pump housing 4 . The water pump casing adopts a cover plate structure, and the water pump casing is combined with the cylinder body to form a closed cavity, which reduces the size of the water pump casing and makes the engine structure more compact.

[0017] A pressure relief hole 5 is provided at the inlet of the blade of the water pump impeller 3 . The pressure relief holes 5 are preferably 4, evenly distributed around the circumference. This not only balances the water pressure before and...

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Abstract

The invention relates to a cooling water pump for the automobile motor. The cooling water pump comprises a water pump casing body combined with an engine cylinder body, a sealing cavity is formed by the water pump casing body and the cylinder body combined, a water pump impeller driven by a water pump wheel shaft and a water inlet opening is arranged at the position of the sealing cavity, the water inlet opening is arranged on the engine cylinder body, and two water outlet openings are respectively arranged at the two sides of the water pump casing body. A pressure relief hole is added in the blade inlet opening of the water pump impeller. The water pump drive adopts double-row sprocket drive. The water pump is provided with two water outlet openings, thus the flow quantity of the water pump is increased; the water pump impeller adopts a plastic structure, thus, on one hand, the whole mass of the water pump is lightened, and the rotational inertia is reduced; on the other hand, the water pump efficiency is enhanced; and the pressure relief hole is added in the blade inlet opening of the water pump impeller, thus the front and rear water pressure of the impeller is balanced, the cavitation erosion surplus is reduced, and the pressure relief hole can also play a cooling and water sealing role. The water pump drive adopts the double-row sprocket drive, thus, on one hand, the work efficiency of the water pump is enhanced, and on the other hand, the work stability of the water pump is strengthened.

Description

technical field [0001] The invention relates to a water pump, in particular to an automobile engine cooling water pump. Background technique [0002] At present, most of the water inlets of automobile engine water pumps are on the water pump shell, with a single water outlet; most of the water pump impellers are metal impellers, and there are many cavitation problems; most of the water pumps are driven by belts, the transmission force is single, and it is easy to cause belt slippage ; There are also many problems with abnormal noise of the water pump. Chinese patent application number 200410059751.7 discloses a water pump for an internal combustion engine, which includes: a pump casing, which is adapted to be fixed to the engine; a pump body, which is joined to the pump casing, so that A fluid chamber of the water pump is formed therebetween; and a rotating pump shaft member extends through the pump body into the fluid chamber. A fastening set for fastening the pump casing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/40F04D29/20F04D29/02F04D29/00F01P5/10
Inventor 高春霞
Owner CHERY AUTOMOBILE CO LTD
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