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Air suspension strut having elastic damper bearing fastening

A technology of air springs and supports, applied in the design features of springs/shock absorbers, shock absorbers, gas shock absorbers, etc., can solve problems such as expensive, complex internal movable blocks, unfavorable mold parting degree, etc.

Active Publication Date: 2021-09-10
CONTINENTAL AUTOMOTIVE TECH GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if an air spring cover made of plastic material is used, an expensive and complicated internal work piece must be used
This results in an unfavorable mold parting degree, which is not permissible according to current requirements
In addition, the rectangular groove for the sealing ring produces a large notch effect, which can lead to premature failure under normal force conditions of the shock absorber bearing

Method used

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  • Air suspension strut having elastic damper bearing fastening
  • Air suspension strut having elastic damper bearing fastening
  • Air suspension strut having elastic damper bearing fastening

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0074] figure 1 An exemplary air spring strut assembly 1 is shown, consisting of an air spring 2 and an integrated shock absorber 3, wherein the air spring 2 includes an air spring cover 4, a scroll piston 5 and a scroll airbag6. The shock absorber 3 is arranged in the air spring 2 , wherein the shock absorber 3 comprises a shock absorber tube 18 and a piston rod 19 which can be inserted into the shock absorber tube.

[0075] The air spring 2 comprises a rolling bellows 6 made of elastomer material, wherein the rolling bellows 6 together with the air spring cover 4 and the rolling piston 5 delimit a pressure-tight, variable-volume pressure chamber filled with compressed air 7. To this end, the hose-shaped rolling airbag 6 is fastened with its upper end to the air spring cover 4 and with its lower end to the rolling piston 5 , for example via a clamping ring 12 at the ends of the air spring connections. connection area. During the relative movement between the air spring co...

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Abstract

The invention relates to an air suspension strut for a motor vehicle. The air suspension strut comprises an air spring having an air spring cover and a rolling piston. A shock damper is integrated with the air spring. A rolling bellows made of an elastic material is secured between the air spring cover and the rolling piston in a pressure seal manner thereby delimiting a variable volume pressure chamber filled with compressed air. The rolling bellows rolls on the rolling piston with a rolling fold being formed. The shock damper includes a shock damper pipe and a piston rod accommodated in the shock damp pipe. The piston rod is connected to a damper bearing accommodated in the bearing socket of the air spring cover. The damper bearing comprises a supporting piece, an elastomer body, and a sleeve. A closure element inserted in the bearing socket above the damper bearing. An elastic element is arranged between the sleeve and the closure element.

Description

technical field [0001] The invention relates to an air spring strut assembly according to the preamble of claim 1 . Background technique [0002] Air springs or air spring strut assemblies which are arranged between the chassis and the body of a motor vehicle are known in many embodiments. The air spring includes a scroll air bag secured between the cover and the scroll piston. During operation, the air spring is under internal overpressure and the rolling bellows rolls on the rolling piston during the travel of the spring while forming a fold. In order to limit the stretch, the rolling airbag is surrounded by a sleeve-shaped outer guide. [0003] The shock absorber arranged inside the air spring is connected on the one hand to the hub carrier and on the other hand via its piston rod to a shock absorber carrier which is accommodated in the air spring cover. The air spring cover is in turn connected to the body, so that the motor vehicle is elastically supported and damped...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F9/05F16F9/32F16F9/36B60G15/14B60G15/02
CPCF16F9/057F16F9/0454F16F9/3207F16F9/369B60G15/14B60G15/02B60G2202/314B60G2204/1262B60G2204/128B60G2204/4502B60G2206/424F16F9/084F16F2230/0041F16F9/54
Inventor R·皮洛克A·尼塞尔
Owner CONTINENTAL AUTOMOTIVE TECH GMBH
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