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Air spring arrangement with integrated control valve

A technology of air springs and control valves, which is applied in springs, vehicle springs, springs/shock absorbers, etc., and can solve the problem of expensive longitudinal extension distance of operating parts

Active Publication Date: 2012-12-12
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, the actuating element is particularly expensive due to the considerable longitudinal extension and the considerable number of individual components

Method used

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  • Air spring arrangement with integrated control valve
  • Air spring arrangement with integrated control valve
  • Air spring arrangement with integrated control valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] according to figure 1 The air spring arrangement basically consists of an outer tube 1 with an upper fixing ring 2 located opposite the rolling tube 3 with a corresponding lower fixing ring 4. The fixing ring 4 is here a component of the hydraulic shock absorber 5, which is surrounded coaxially by the outer tube 1 and the rolling tube 3. An air spring bellows composed of an elastomer material extends between the outer tube 1 and the rolling tube 3, and the air spring bellows expands on the outer surface of the rolling tube 3 according to the stroke of the air spring. The outer tube 1, the rolling tube 3 and the air spring bellows 6 form a pressure chamber 7, which is loaded with compressed air, thereby fulfilling the air spring function of the air spring arrangement. In order to realize the pressure loading of the pressure chamber 7, an internal control valve 8 is provided. Here, the control valve is designed as a three-position three-way reversing valve with switching p...

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PUM

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Abstract

The invention relates to an air spring arrangement having at least one integrated control valve (8) for charging a pressure chamber (7), which is formed among an outer tube (1), a rolling tube (3) and an air spring bellows (6) which connects said tubes, with compressed air, wherein the control valve (8), which has a plurality of switching positions, can be actuated by means of likewise integrated mechanical actuating means as a function of the air spring stroke for the purpose of ride height adjustment, wherein the mechanical actuating means comprises a compression spring (10) which is fastened on the end side to the outer tube (1) or rolling tube (3), the distal end of which compression spring interacts with an actuating plunger (9) of a control valve (8) which is arranged opposite on the rolling tube (3) or outer tube (1) respectively.

Description

Technical field [0001] The present invention relates to an air spring arrangement having: at least one integrated control valve for charging a pressure chamber formed between an outer tube, a rolling tube, and an air spring bellows arranged between the outer tube and the rolling tube with compressed air, Among them, a plurality of switching positions can be used to control the control valve for level adjustment through the same integrated mechanical operating member depending on the air spring stroke. Background technique [0002] The field of application of the invention extends especially to automotive technology. For example, a shock absorber is used in the area of ​​the running gear of a commercial vehicle. The shock absorber includes a mostly hydraulic damping element and an air spring arrangement that interacts with it. In the sense of an integrated structure, the damping element usually has a container tube, which is connected to the rolling tube of the air spring. The ro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G11/27B60G15/14B60G17/048B60G17/052F16F9/05F16F9/43
CPCB60G2500/202B60G2400/252B60G17/0485B60G15/14B60G11/27B60G17/0521F16F9/43F16F9/05B60G2204/1262B60G2202/314B60G2500/30B60G2206/424B60G2204/62
Inventor 安德拉斯·福伊特亚诺什·托特
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH