Piston for a hydraulic brake system and master cylinder equipped therewith

A hydraulic brake and piston technology, applied in the direction of hydraulic brake transmission device, brake transmission device, fluid pressure actuation device, etc., can solve problems such as wear and tear, achieve uniform pressure distribution, reduce the risk of jamming or blocking, Reliable and fast closing effect

Inactive Publication Date: 2006-01-25
LUCAS AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These solutions are prone to wear due to the high mechanical loads acting on the sealing elements

Method used

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  • Piston for a hydraulic brake system and master cylinder equipped therewith
  • Piston for a hydraulic brake system and master cylinder equipped therewith
  • Piston for a hydraulic brake system and master cylinder equipped therewith

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] exist figure 1 In , a piston according to the invention is shown in a partial sectional view including the axis and is indicated generally at 10 . The piston 10 is movably guided in the direction of the axis A in the cylinder housing 12 of the master cylinder. The piston 10 is provided with a stepped piston channel 14, which axially passes through the piston. The sealing member 16 comprising the sealing element 18 and the support element 20 is adhesively mounted in the piston channel 14 by press-fitting. Additional detail on sealing member 16 will be provided below.

[0023] The sealing member 16 is likewise provided with a central stepped channel 22 in which the guide element 24 is received and press-fitted so as to be locked against movement. In the guide element 24 a valve element 26 is guided in an axially movable manner. The valve element 26 includes a valve tappet 28 and a valve disk 30 . In order to guide the valve element 26 in the guide element 24, the val...

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PUM

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Abstract

The invention relates to a piston (10) with a valve assembly for a hydraulic vehicle brake system, comprising a piston channel (14), through which the piston (10) passes, a valve seat (38), which is formed around an opening (22) of the piston channel (14), and a valve element (26), which can be displaced relative to the piston (10) and which can be placed in a fluid-tight manner against the valve seat (38) in order to close the piston channel (14). The valve seat (38) is provided in the form of an annular projection on a sealing part (16), which comprises an elastic sealing element (18) and a supporting element (20) that stabilizes this sealing element. The supporting element (20) is provided with a corresponding annular recess (54) in an area located near the sealing projection (38).

Description

technical field [0001] The present invention relates to a piston with a valve arrangement for a hydraulic brake system of a vehicle, comprising a piston passage extending through the piston; a valve seat formed around the opening of the piston passage; and a valve element which can be positioned relative to the The piston moves and can be positioned in a fluid-tight manner relative to a valve seat to seal the piston passage, wherein the seal seat takes the form of an annular projection on a sealing member comprising a resilient sealing element and for sealing the sealing element Stable support elements. Background technique [0002] Such a piston is known from EP 0 607 370 B2 and, according to this background art, is installed in a brake master cylinder of a vehicle brake system. Together with the brake master cylinder, the piston surrounds a pressure chamber. In the ready position before braking action, the valve arrangement is in an open state, wherein the pressure chamb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60T11/232F15B15/20
CPCF15B15/204B60T11/232B60T11/28
Inventor 马库斯·马尔曼迪尔克·伦克尔凯姆·朱
Owner LUCAS AUTOMOTIVE GMBH
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