Water pump
A water pump and pump body technology, applied in the field of cooling system design, can solve the problems of cavitation damage and large pressure difference between the two ends of the water discharge hole, so as to avoid cavitation damage and improve the anti-cavitation ability.
Active Publication Date: 2021-03-09
WEICHAI POWER CO LTD
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Problems solved by technology
[0004] However, when the existing water pump is working, the pressure difference between the two ends of the discharge hole is too large, which is prone to cavitation damage
Method used
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[0040] In order to make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below with reference to the drawings in the preferred embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in deta...
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The invention provides a water pump. The water pump comprises a pump body and an impeller, a pressurized water chamber and a water inlet cavity are formed in the pump body, a baffle is arranged between the pressurized water chamber and the water inlet cavity, a through hole is formed in the baffle to communicate the pressurized water chamber with the water inlet cavity, the impeller is installed in the pressurized water chamber,d the impeller and the through hole are coaxially arranged, a water discharging hole is formed in one side of the baffle, a throttling piece is arranged in the water discharging hole in an inserted mode, and the throttling piece is provided with a bent channel communicating with the pressurized water chamber and the water inlet cavity of the water pump. The invention provides the water pump, and the water pump can effectively reduce the flow velocity of water flow flowing through the bent channel, so that cavitation damage caused by too high flow velocity and too low static pressure is avoided, and the anti-cavitation capacity of the water discharging hole is effectively improved.
Description
technical field [0001] The invention relates to the field of cooling system design, in particular to a water pump. Background technique [0002] The diesel engine has two major mechanisms and five major systems, the cooling system is one of them, and the water pump is the key part in the cooling system. Under normal circumstances, the water pump is driven by a belt to forcibly circulate the coolant to take away the excess heat that cannot be converted into effective work in time to ensure that the engine components work under suitable temperature conditions. [0003] When the existing water pump discharges water from the engine, the water in the water pump flows back to the lower water chamber of the water tank through the water inlet pipe of the water pump, and is discharged to the outside by the drain valve at the bottom of the lower water chamber of the water tank. The water in the vortex of the pump needs to flow back through the pump eye and return to the water inlet c...
Claims
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IPC IPC(8): F04D29/42F04D29/66F04D29/10F01P5/10
CPCF04D29/426F04D29/669F04D29/106F01P5/10
Inventor 孙传利王泽刚迟晓丽
Owner WEICHAI POWER CO LTD