Double pipe electrically-controlled trailer brake valve

An electromagnetic control valve, dual-pipe technology, applied in the direction of control valve and air release valve, brake, brake components, etc., can solve the problem of inability to meet the braking force of long-wheelbase vehicles, poor braking effect, impact on the main vehicle, etc. question

Inactive Publication Date: 2006-12-13
淄博龙达金山汽车部件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the increase of the wheelbase of the above-mentioned vehicles, the brake pipeline is also correspondingly lengthened. For the long-wheelbase vehicles running at high speed, the reaction time lag of the air brake system and insufficient braking force are still the main problems.
However, the existing double-pipeline trailer brake valve has a lag in t...

Method used

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  • Double pipe electrically-controlled trailer brake valve
  • Double pipe electrically-controlled trailer brake valve
  • Double pipe electrically-controlled trailer brake valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] 1. Valve body 2, air inlet 3, sealing ring 4, upper relay piston 5, spacer 6, return spring 7, air inlet 8, air inlet 9, lower relay piston 10, piston seat 11, Spring seat 12, valve spring 13, air pressure adjustment piston 14, Y-shaped cup 15, air channel 16, valve 17, pressure regulating spring 18, air channel 19, exhaust channel 20, valve seat 21, valve spring 22, inlet and outlet Gas valve 23, control port 24, emergency piston 25, control piston 26, nuts 27, 28 air passage 29, air outlet 30, air inlet 31, air inlet 32, throttle valve 33, solenoid valve seat 34, air passage 35. Fixed spool 36, coil 37, terminal 38, moving spool 39, valve stem 40, air outlet 41, pressure plate 42, screw 43, positioning seat 44, push rod 45, spring 46, fixed seat 47, sound-proof Dust cover 48, air inlet 49, sealing surface 50, electromagnetic control valve 51, spring 52, electric wire 53, load sensor 54, sensing element

[0026] exist Figure 1-3 In the shown embodiment 1: the electr...

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Abstract

The invention relates to a dual-tube electric control trailer brake valve, wherein it adds an electromagnetic control valve and a load sensor, based on former valve, throttle valve, upper relay piston assembly, lower relay piston assembly and emergency piston assembly; the inner diameter lower relay piston is decreased stepped; the baffle disc sheathes the outer wall of lower relay piston to be sealed with the inner wall of valve to form vacuum chamber E and pressure adjustable chamber F; the pressure adjust piston is sealed inside the lower relay piston while a pressure adjust spring is mounted between its lower end and the lower relay piston; the side wall of lower relay piston has an air channel connecting the control chamber C and the air inlet, an air channel connecting the output chamber D and the upper end of pressure adjust piston, and an air channel connecting the lower end and the pressure adjust chamber F; the side wall of valve has an air channel connecting the vacuum chamber E and the outlet channel of electromagnetic control valve, and an air channel connecting the air inlet channel electromagnetic control valve. The invention can automatically adjust the brake pressure, with high sensitivity, better working property and high stability.

Description

Technical field [0001] The invention provides a dual-pipeline electronically controlled trailer braking valve, which belongs to the technical field of automobile braking. Background technique [0002] As my country's expressway backbone network has been basically formed, large-tonnage, trucks, long-wheelbase semi-trailers, and trailers with obvious cost advantages per ton-kilometer are also increasing year by year. Due to the increase of the wheelbase of the above-mentioned vehicles, the brake pipeline is also correspondingly lengthened. For the long-wheelbase vehicles running at high speed, the reaction time lag of the air brake system and insufficient braking force are still the main problems. However, the existing double-pipeline trailer brake valve has a lag in the trailer braking time under heavy load, and the brake is soft. It cannot meet the braking force required by the long-wheelbase vehicle during point braking or semi-braking. The phenomenon of hitting the main v...

Claims

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Application Information

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IPC IPC(8): B60T15/46
Inventor 王金山王峰刘波张勇
Owner 淄博龙达金山汽车部件有限公司
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