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

Rail transit brake system and empty load device

A braking system, rail transit technology, applied in braking safety systems, brakes, brake components, etc.

Active Publication Date: 2013-04-24
NEW YORK AIR BRAKE CORP
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But as already described, the prior art pneumatic no-load system regulates the output of the brake control valve, while the ECP system directly produces the correct pressure

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
  • Rail transit brake system and empty load device
  • Rail transit brake system and empty load device
  • Rail transit brake system and empty load device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] as known in the industry and as figure 1 and figure 2 As shown, the EPC car brake system includes an electro-pneumatic brake valve or car control device CCD 28 that provides a brake control signal to a brake cylinder 30 through an unloaded device 10 . The brake signal from the CCD 28 is provided to the inlet 20 of the idler E / L 10 and at the outlet 22 the appropriate brake cylinder pressure is provided from the idler 10 to the brake cylinder BC 30 . The unloaded device 10 includes a load sensing device, shown as a pushrod or actuator 40 . The position of the actuator 40 is determined by the load of the car. The actuator 40 may be connected to an element that senses the position of the body of the car relative to the truck caused by deflection of the suspension springs, or may be connected to the wall of the cargo car to sense the weight of the cargo in the car. The load sensed by the actuator 40 controls a switching device or valve in the idle valve 10 which equaliz...

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

A rail vehicle brake system includes an electric controlled pneumatic brake valve having a controller and includes an empty-load device connecting the brake valve to a brake device. An electro-pneumatic lock-out valve is controlled by the controller and has a first position which allows the proportioning of the inlet pressure to the outlet by the empty-load device and a lock-out position which pneumatically prevents the proportioning of the inlet pressure to the outlet by the empty-load device. Also, the system may include a sensor for sensing the vehicle load; and the controller controls the brake valve in response to the sensed load taking into account the operation of the change over valve of the empty-load device. Also, an empty-load device including a load sensor is disclosed.

Description

technical field [0001] The present disclosure relates generally to unloaded devices for rail braking systems, and more particularly, to unloaded devices that can be used in pneumatic and Electrically Controlled Pneumatic (ECP) rail braking systems. Background technique [0002] A dual-mode empty-load system that provides empty-load (Empty Load, EL) functions in ECP and AAR standard pneumatic modes has been disclosed. The AAR standard no-load system is known to operate in response to brake cylinder pressure to determine the carriage load by measuring the spring deflection of the suspension (bogie) and is used to transfer volume in the empty carriage by means of the distribution valve and associated no-load transfer volume Reduce the pressure of the brake cylinder under the state. Under load, the unloaded system bypasses the distribution valves and volumes, so the full pressure of the brake cylinder air is delivered to the brake cylinders. [0003] Typical unloaded valves ar...

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
Patent Type & Authority Patents(China)
IPC IPC(8): B60T17/22B60T13/66B60T8/18
CPCB60T17/228B60T8/1893B60T13/665
Inventor 埃里克·C·赖特
Owner NEW YORK AIR BRAKE CORP