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Air spring assembly with integrated control valve and rocker-type controls

An air spring, control valve technology, applied in the direction of springs, vehicle springs, springs/shock absorbers, etc., can solve the problem of undefined switching positions, etc., and achieve the effect of saving installation space

Active Publication Date: 2018-03-27
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 with integrated control valve and rocker-type controls
  • Air spring assembly with integrated control valve and rocker-type controls
  • Air spring assembly with integrated control valve and rocker-type controls

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] according to figure 1 , the air spring assembly is mainly composed of an outer tube 1 with an upper fixing ring 2 and a rolling tube 3 with a lower fixing ring 4, the upper fixing ring is used for installation on the 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 by an 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 . The air spring cooperates with an integrated hydraulic damper 7 for damping the sprung mass.

[0027] The spring pressure chamber 6 of the air spring assembly can be loaded with compressed air as a function of load via an integrated control valve assembly consisting of a single vent valve 8 and a single exhaust valve 9 . The ventilation valve 8 and the exhaust valve 9 can be actuated by likewise integrated me...

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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 on the part of the outer tube (1) or the rolling tube (3), wherein the mechanical actuating elements that act on the actuating tappets while lying therebetween comprise a switching rocking lever (10), which engages by means of the one end with at least one guiding path (12) of an actuating element (11) attached to the rolling tube (3) or outer tube (1) in order to act on the actuating tappets (8a, 8b) by means of the other end in order to switch the control valve assembly.

Description

technical field [0001] The invention relates to an air spring assembly with an integrated control valve assembly for charging a spring pressure chamber formed between an outer tube, a rolling tube and an air spring air bag connecting these components with compressed air, wherein, The control valve assembly consists of a single vent valve and a single vent valve, which can be actuated by means of the likewise integrated mechanical actuating means according to the stroke position of the air spring for charging or discharging the spring pressure chamber. gas. [0002] The field of application of the invention relates in particular to vehicle technology. In the chassis region of commercial vehicles, for example, vibration dampers are used which comprise mostly hydraulic damping elements and gas spring assemblies which act together with them. In the sense of an integrated design, the damping element usually has a container tube which is connected to the rolling tube of the air sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60G15/12B60G17/048B60G17/052F16F9/05F16F9/512F16F9/342
CPCB60G15/12B60G17/0485B60G17/0525B60G17/0528B60G2202/314B60G2204/1262B60G2204/4232B60G2400/252B60G2500/2042B60G2500/2044F16F9/05F16F9/43F16F9/5123
Inventor I·道利K·坎托尔L·康奇Z·沃什
Owner KNORR-BREMSE SYST FUER NUTZFAHRZEUGE GMBH