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Sealing ring, in particular for a hydraulic piston pump

A hydraulic piston pump and sealing ring technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as damage and leakage of sealing components, and achieve the effect of small leakage, avoiding functional damage and small wear.

Active Publication Date: 2012-09-05
ROBERT BOSCH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This prevents the sealing element from being pressed in the area between the support ring and the piston, which could damage the sealing element and lead to leakage

Method used

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  • Sealing ring, in particular for a hydraulic piston pump
  • Sealing ring, in particular for a hydraulic piston pump
  • Sealing ring, in particular for a hydraulic piston pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] figure 1 A sealing ring 10 according to the invention is shown having an inner peripheral surface 12 and an outer peripheral surface 14 . On the inner peripheral surface 12, the sealing ring 10 has a sealing lip 16 with a defined contour 18 (see figure 2 ).

[0054] figure 2 Shown is a sealing ring 10 which is arranged between a cylindrical wall 20 of a cylindrical chamber and a piston 22 of a hydraulic piston pump. The sealing ring 10 bears with its outer peripheral surface 14 against the inner peripheral surface 24 of the cylindrical wall 20 and with the defined contour 18 of the sealing lip 16 against the outer peripheral surface 26 of the piston 22 . The piston 22 is configured to move in and out inside the cylindrical chamber and forms a sealing surface 28 on the contact surface between the sealing lip 16 and its outer peripheral surface 26 , which is opposite to the sealing lip 16 of the sealing ring 10 Movable. The sealing ring 10 here seals off the fluid-...

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Abstract

The invention relates to a sealing ring (10), in particular for a hydraulic piston pump, for sealing a pressure chamber (30) which is filled with a fluid, wherein a sealing lip (16) having a contour (18) contacts a sealing surface (28) and is movable relative thereto, wherein the contour (18) of the sealing lip (16) is adapted according to the speed of the sealing lip (16) relative to the sealing surface (28), such that a defined leakage of the fluid out of the pressure chamber (30) is adjusted.

Description

technical field [0001] The invention relates to a sealing ring, in particular a sealing ring for a hydraulic piston pump, for sealing a fluid-filled pressure chamber, wherein a sealing lip rests against a sealing surface with a contour and is displaceable relative to the sealing surface. Furthermore, the invention relates to the use of a sealing ring, a method for producing a piston pump, a piston pump and a vehicle brake system. Background technique [0002] The sealing ring of a hydraulic piston pump for sealing off a pressure chamber filled with hydraulic fluid usually has a substantially smooth surface which bears against a piston which can be moved in and out of the cylindrical chamber. In this process, friction occurs between the surface of the sealing ring and the piston, which leads to wear of the sealing ring. [0003] A sealing and guiding device for sealing on a pump piston is known from DE 10 2006 036 442 A1. The sealing and guiding device comprises a guiding r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32F16J15/56
CPCF16J15/3204F16J15/324Y10T29/49236
Inventor W·舒勒D·戈塞
Owner ROBERT BOSCH GMBH
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