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Liquid pump with axial thrust washer

一种止推垫圈、液压泵的技术，应用在用于弹性流体的泵送装置的部件、泵、泵元件等方向，能够解决限制使用寿命等问题，达到延长使用寿命、确保固定的效果

Inactive Publication Date: 2013-05-22
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has been found that thrust washers made of stainless steel are subject to wear which limits the service life of conventional pumps

Method used

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  • Liquid pump with axial thrust washer
  • Liquid pump with axial thrust washer
  • Liquid pump with axial thrust washer

Examples

Experimental program
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Embodiment Construction

[0023] FIG. 1 is a cross-sectional view of a portion of a pump housing 110 of a hydraulic pump 100 . For example, hydraulic pump 100 may be designed to pump water. Hydraulic pump 100 can be used, for example, as a supplementary water pump in a motor vehicle. As a supplemental water pump, hydraulic pump 100 may be used to cool charge air, a battery of a controller, or other components of a motor vehicle.

[0024] The pump housing 110 has an axial bearing receptacle 130 which is designed to receive a bearing cover screw (not shown in FIG. 1 ). The bearing cap bolts extend in the axial direction 140 into the axial bearing receptacle 130 . Bearings, for example bearing shells, are mounted on the bearing cap bolts, which rotate around the bearing cap bolts during operation of the hydraulic pump 100 .

[0025] The axial bearing receptacle 130 has a bearing surface 131 which is oriented in the direction of the rotating bearing. In order to protect the bearing surface 131 of the a...

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PUM

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Abstract

A liquid pump, in particular a water pump, comprises a pump housing, which has a thrust bearing seat, a bearing bolt and a bearing mounted on the bearing bolt. In this case, a thrust washer is arranged between the thrust bearing seat of the pump housing and the bearing. Furthermore, a flexible washer is arranged between the thrust bearing seat and the thrust washer.

Description

technical field [0001] The invention relates to a hydraulic pump with an axial thrust washer. Background technique [0002] Known hydraulic pumps, such as water pumps, are designed with a rotatable rotor. It is also known to arrange a thrust washer in the region of the axial bearing receptacle of the housing of such a pump, which thrust washer serves as a counterpart for the displaceable bearing sleeve. In the prior art such thrust washers are made of stainless steel. However, it has been found that thrust washers made of stainless steel are subject to wear, which limits the service life of conventional pumps. [0003] It is known that hydraulic pumps are used in motor vehicles for boost control cooling, battery cooling, controller cooling and for other cooling circuits. Contents of the invention [0004] The object of the invention is to provide a hydraulic pump with an extended service life. This object is achieved by a hydraulic pump with the features of claim 1 . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/04
CPCF04D29/0413F04D29/046F04D29/0465F04D29/0473
Inventor D.阿伦斯C.海尔C.穆舍尔克瑙茨
Owner ROBERT BOSCH GMBH
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