Air spring assembly having integrated control valve and rod-shaped actuating element

A technology for air springs and control valves, applied in springs, vehicle springs, springs/shock absorbers, etc., can solve problems such as unrestricted switching positions, and achieve the effect of saving installation space

Active Publication Date: 2016-09-21
KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although a more precise valve actuation can be achieved with this mechanism, the valve actuation does not take place over the entire gas spring travel, so that undefined switching positions are possible at least in the extreme end positions

Method used

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  • Air spring assembly having integrated control valve and rod-shaped actuating element
  • Air spring assembly having integrated control valve and rod-shaped actuating element
  • Air spring assembly having integrated control valve and rod-shaped actuating element

Examples

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Effect test

Embodiment Construction

[0025] according to figure 1 , the air spring assembly mainly consists of an outer tube 1 with an upper fixing ring 2 and a rolling tube 3 with a lower fixing ring 4 for mounting on the driver's cab of a commercial vehicle not further shown, the The lower retaining ring is used in air spring assemblies mounted on commercial vehicle frames. The outer tube 1 and the rolling tube 3 are connected through the air spring air bag 5 , so that a spring pressure chamber 6 is formed between the outer tube 1 , the rolling tube 3 and the air spring air bag 5 . This air spring cooperates with an integrated hydraulic shock absorber 7 for damping the sprung mass.

[0026] The spring pressure chamber 6 of the air spring assembly can be loaded with compressed air via an integrated control valve assembly consisting of a single vent valve 8 and a single vent valve 9 . The ventilation valve 8 and the exhaust valve 9 can be actuated according to the air spring travel position by means of likewise...

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PUM

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Abstract

The invention relates to an air spring assembly, comprising an integrated control valve assembly for admitting compressed air into a spring pressure chamber (6) formed between an outer tube (1), a rolling tube (3), and an air spring bellows (5) that connects these components, wherein the control valve assembly consists of an individual air inlet valve (8) and an individual air outlet valve (9), which can be actuated by likewise integrated mechanical actuating elements in accordance with the air spring stroke position in order to admit air into or let air out of the spring pressure chamber (6), wherein the air inlet valve (8) is arranged opposite the air outlet valve (9) with actuating tappets (8a; 9a) facing each other, wherein the mechanical actuating elements that act on the actuating tappets while lying therebetween comprise a switching rod (10) attached to the outer tube (1) or rolling tube (3) at one end, the sliding tracks (11a, 11b) of which switching rod, which are opposite each other and which are each associated with one of the actuating tappets (8a, 8b), act on the actuating tappets (8a; 8b) in order to actuate the valves in dependence on the stroke position.

Description

technical field [0001] The invention relates to an air spring assembly with an integrated control valve assembly for loading with compressed air a spring pressure chamber formed between an outer tube, a rolling tube and an air spring bellows connecting these components, wherein, The control valve assembly consists of a single ventilation valve and a single exhaust valve, which can be operated according to the stroke position of the air spring by means of the same integrated mechanical operating device for venting or venting the spring pressure chamber. gas. [0002] The field of application of the invention relates in particular to vehicle technology. In the chassis area of ​​commercial vehicles, for example, shock absorbers are used which comprise mostly hydraulic damping elements and air spring assemblies interacting therewith. In the sense of an integrated construction, the damping element usually has a container tube which is connected to the rolling tube of the air spri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60G15/12B60G17/052B60G17/048F16F9/05F16F9/512F16F9/342
CPCB60G15/12B60G17/0485B60G17/0525B60G17/0528F16F9/342F16F9/5123F16F9/05B60G2202/314B60G2204/42B60G2204/423B60G2204/4232B60G2400/25B60G2400/252B60G2500/202B60G2500/2021B60G2500/2022B60G2500/2042B60G2500/2044
Inventor I·道利K·坎托尔Z·沃什L·康奇
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH
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