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water pump

A water pump and pump body technology, applied in the field of cooling system design, can solve the problems of large pressure difference at both ends of the water discharge hole, cavitation damage, etc., and achieve the effect of avoiding cavitation damage and improving cavitation resistance

Active Publication Date: 2022-08-05
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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Embodiment Construction

[0040] In order to make the objectives, 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 accompanying drawings in the preferred embodiments of the present invention. Throughout the drawings, the same or similar reference numbers refer to the same or similar parts or parts having the same or similar functions. The described embodiments are some, but not all, of the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings 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 those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. The embodiments of the...

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Abstract

The invention provides a water pump, comprising a pump body and an impeller, the pump body is provided with a water pressure chamber and a water inlet chamber, a baffle plate is arranged between the water pressure chamber and the water inlet chamber, and a through hole is opened on the baffle plate to communicate with the water pressure chamber The impeller is installed in the water pressure chamber, and the impeller and the through hole are arranged coaxially; one side of the baffle plate is provided with a water discharge hole, and a throttling piece is inserted in the water discharge hole, and the throttling piece is connected to the water pump pressure chamber. and the curved channel of the inlet chamber. The invention provides a water pump, which can effectively reduce the flow rate of the water flow through the bent channel, thereby avoiding the cavitation damage caused by the high flow rate and the low static pressure, and effectively improving the anti-cavitation ability of the water discharge hole.

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 of the cooling system. Under normal circumstances, the water pump is driven by the 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 parts work under appropriate 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 through the water discharge valve at the bottom of the lower water chamber of the water tank. The water in the vortex channel of the pump needs to flow back to the water inlet cavity of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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