Unlock instant, AI-driven research and patent intelligence for your innovation.

Vehicle relay valve

A technology for relay valves and vehicles, which is applied to vehicle components, control valves, air release valves, brake components, etc., and can solve the problems that brake valves cannot meet

Inactive Publication Date: 2010-04-07
沈阳西屋制动科技有限公司
View PDF0 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the truck braking system of the five-unit container flat car and the iron ore hopper car with the bottom door, the control valve is used to indirectly control the braking and relief of the brake cylinder. The domestic brake valve cannot meet the needs of the above models.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Vehicle relay valve
  • Vehicle relay valve
  • Vehicle relay valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Figure 1 to Figure 3 As shown, the vehicle relay valve is composed of a valve body 1, an end cover 11 and its internal structure. There is a balance valve 13 in the upper part of the valve body 1. The balance valve 13 is connected with the balance valve stem 6 through a pin 12. The balance valve stem 6 The upper cavity is equipped with a balance valve spring 7; the lower part of the valve body 1 has a piston composition 20, the piston composition 20 is mainly composed of an upper piston 41, a lower piston 42, a piston rod 15 and a rubber diaphragm between the upper and lower pistons 43 components, the piston component 20 can move up and down due to the pressure difference, when the piston rod 15 moves upward, it can open the balance valve 13, the balance valve 13 leaves the balance valve seat 16, and when the piston rod 15 moves downward At this time, under the pressure of the balance valve spring 7, the balance valve 13 falls on the balance valve seat 16, and the axia...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a vehicle relay valve, which is particularly used on a control valve in a braking system of a railway freight car. The upper part in a valve body (1) is provided with a balance valve (13), the lower part of the valve body (1) is provided with a piston assembly (20), a piston rod (15) on the piston assembly (20) enables the balance valve (13) to perform opening and closing motion relative to a balance valve seat (16), a cavity is formed in the axial direction at the upper part of the piston rod (15), and a hole (28) communicated with the cavity is drilled in the radial direction of the rod; and a copper sleeve (5) is arranged at the position where a balance valve rod (6) and a piston rod (15) perform relative motion in the valve body (1), and sealing rings (4) are arranged on the balance valve rod (6) and the piston rod (15). The vehicle relay valve controls the pressure change of a second cavity (22) through the pressure change of a third cavity (23) so as to realize braking, pressure-keeping and relieving functions of the braking system.

Description

technical field [0001] The invention discloses a relay valve, which is especially used as a control valve in the braking system of railway wagons. It is especially suitable for the truck braking system of five-unit container flat cars and iron ore hopper cars with bottom doors. Background technique [0002] The existing air brakes for railway freight cars in our country all belong to the direct acting structure, that is, the braking and relief of the brake cylinder are directly controlled by a control valve. For the truck braking system of the five-unit container flat car and the iron ore hopper car with the bottom door, the control valve is used to indirectly control the braking and relief of the brake cylinder. The domestic brake valve cannot meet the needs of the above models. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a vehicle relay valve, which is used in conjunction with the existing air brakes of do...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B60T15/18
Inventor 刘兵吴萍董纯秋李克钧
Owner 沈阳西屋制动科技有限公司