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Piston guiding element, particularly piston guiding element for cylinder piston pump

A technology for hydraulic piston pumps and guiding components, which is applied in the direction of pump components, pumps, multi-cylinder pumps, etc., which can solve problems such as leakage and damage to sealing components, and achieve the effects of cost reduction, excellent wear protection, and ensuring piston guidance

Inactive Publication Date: 2012-04-11
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 into the area between the support ring and the piston, which would cause damage to the sealing element and lead to leakage

Method used

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  • Piston guiding element, particularly piston guiding element for cylinder piston pump
  • Piston guiding element, particularly piston guiding element for cylinder piston pump
  • Piston guiding element, particularly piston guiding element for cylinder piston pump

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0056] figure 1 A hydraulic piston pump 10 is shown with a low-pressure side guide ring 12 as a piston guide element according to the prior art.

[0057] The piston pump 10 comprises a pump housing 14 in which a cylinder-piston unit 15 is accommodated. In this cylinder-piston unit 15 there is a piston 16 which is movable in a cylinder 17 along a longitudinal axis. During operation of the piston pump 10 , the piston 16 is driven by a rotating eccentric 18 which is arranged in an eccentric chamber 20 . The eccentric 18 rests with its outer circumference against the end face 22 of the piston 16 and moves the piston 16 in or out of the cylinder 17 .

[0058] A suction valve 24 is assigned to the piston 16 . The intake valve 24 is arranged in a valve housing 26 which is clamped on a holder 28 . The suction valve 24 is designed to suck fluid into the pressure area 32 inside the cylinder 17 by means of the reciprocating movement of the piston 16 via the suction device 30 and to d...

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PUM

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Abstract

The invention relates to a piston guiding element (62), particularly a piston guiding element (62) for a cylinder piston pump (10), the piston guiding element has one side that is in a butt joint with an inner lateral area (56) of the pump housing (14) and the other side that is capable of being movably supported at an outer curved surface area (52) of a piston (16) in order that the piston guiding element can guide the piston (16) capable of moving inside the pump housing (14) and provided with a low pressure side sealing unit (54) that is arranged on the outer curved surface area (52). According to the piston guiding element, the piston guiding element (62) covers the low pressure-sided sealing element (54) on its side that is facing towards the inner lateral area (56) of the pump housing (14) with a section.

Description

technical field [0001] The invention relates to a piston guide element, especially a piston guide element of a hydraulic piston pump. The piston guide element is used to guide a piston movable in a cylinder, and a low-pressure side seal is arranged on the outer peripheral surface of the piston. ring to seal the eccentric chamber. Furthermore, the invention relates to a component unit with a cylinder-piston unit, a method for producing a piston pump, a piston pump and a vehicle brake system. Background technique [0002] The piston guide element of a hydraulic piston pump for guiding and supporting a piston displaceably mounted in a cylinder usually rests axially on the pump housing, that is to say, between the inner wall of the pump housing and the piston. between the outer walls. When producing a piston pump, the piston guide element is usually pressed as a separate part on the low-pressure side between the housing and the piston. Such a pressed-in guide ring rests in a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04B53/16F04B53/02
CPCF04B53/20F04B53/164F04B1/0439F04B53/166
Inventor O・格特纳A・舒比肖
Owner ROBERT BOSCH GMBH
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