Valve assembly for a trailer braking assembly

A technology of parking brake and valve assembly, applied in the direction of brake assembly, brake, vehicle parts, etc., can solve the problems of sliding guide, complicated operation of switching valve, large installation space, etc., so as to improve work safety and reliable operation mode. , the effect of simple manipulation

Active Publication Date: 2013-03-27
HALDEX BRAKE PROD AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The operation of a changeover valve with three possible valve positions and thus also three different actuating mechanism positions is complex, since the valve body and thus the actuating mechanism require depending on whether the supply port is pressurized or not in order to maneuver the trailer. different valve positions
Furthermore, the sliding guidance of the emergency brake piston on the valve body can be complex and requires a large installation space

Method used

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  • Valve assembly for a trailer braking assembly
  • Valve assembly for a trailer braking assembly
  • Valve assembly for a trailer braking assembly

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] figure 1 A trailer brake system 1 of a commercial vehicle is shown schematically. The trailer equipped with the trailer braking system 1 together with the tractor forms a vehicle group. The pneumatic coupling between the trailer and the tractor takes place via the accumulator coupling (Kupplungskopf Vorrat) 2 and the brake coupling (Kupplungskopf Bremse) 3 via which the trailer brake system 1 is fed supply pressure by the tractor, via The brake coupling supplies the trailer brake system 1 with a brake control pressure which is associated with the driver's actuation of the brake pedal of the tractor. The trailer brake system 1 is equipped with a spring accumulator, a parking brake 5 and a service brake 6 at least on several axles with a combined brake cylinder 4 . It is understood that the trailer brake system 1 generally has more than one combined brake cylinder 4 shown, wherein the axle can also be equipped with only a service brake 6 and / or a spring accumulator park...

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PUM

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Abstract

The invention relates to a valve assembly (7) for a trailer braking assembly (1) for a commercial vehicle. The valve assembly (1) comprises a supply port (15), a spring-loaded port (28), and a manual actuating element (38). An emergency braking- and / or uncoupling function is integrated in the valve assembly (7) and causes automatic exhaust of the spring-loaded port when the supply port is not under pressure. According to the valve assembly, the only manual actuating element (38) can be actuated to perform pressure loading and exhaust upon the spring-loaded port (28) when a supply port (28) is pressurized or not under pressure. Therefore, the manual actuating element (38) can be used in multiple functions, and can not only ensure a parking function of a traditional parking valve, but also ensure a release function of a traditional release valve.

Description

technical field [0001] The invention relates to a trailer brake system valve assembly for a commercial vehicle. Furthermore, the invention relates to a trailer brake system with such a valve arrangement. Background technique [0002] DE 69705978 T2 discloses a trailer brake system with a plurality of individual valve units, which are coupled to one another via pneumatic lines. The working brake chamber of the combination brake cylinder is acted upon by the brake coupling head according to the brake control pressure, which acts as control pressure on the relay valve. A level adjustment valve is connected between the brake coupling and the relay valve, which performs a load-dependent adaptation of the brake control pressure. Supply pressure air to the relay valve, the control pressure is according to the release valve stored in the coupling head or removed from the container. The release valve automatically assumes a position when the coupling head is connected to the res...

Claims

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Application Information

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IPC IPC(8): B60T15/18B60T13/26B60T13/38
CPCB60T15/60B60T15/041B60T13/38B60T13/265
Inventor G·舒勒齐克G·恩格尔H·麦尔特里
Owner HALDEX BRAKE PROD AB
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