Selector valve for a pressure control device in a railway vehicl

Fluid-pressure and analogous brake systems – Automatic – Synchronizing

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

B60T 1522

Patent

active

045617007

ABSTRACT:
A pressure control valve for the compressed air brakes of a railway vehicle includes a triple pressure control valve with a constant pressure chamber, a selector valve and a selector reservoir. Upon the occurrence of pressure reductions in the main brake line for service braking, the selector valve selector remains at rest. When stronger pressure reductions in the main brake line occur, the selector valve evacuates the selector reservoir which lags in relation to the main brake line pressure as result of the force exerted by a pre-stressed spring until a specific minimum pressure is attained by a retention valve. In a subsequent brake release, the selector valve will produce a pressure balance between the constant pressure chamber and the selector reservoir to facilitate the brake release process and a balancing or proportioning of the pressure control valve at an optionally reduced normal pressure head in the main brake line. The selector valve includes a piston retained in a middle position by a spring buffer and by two valves positioned on both sides of the piston and spring loaded in their respective closing directions. On one side, the piston is loaded by the main brake line pressure and on the other side by the pressure in the selector reservoir.

REFERENCES:
patent: 3554615 (1971-01-01), Worbois et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Selector valve for a pressure control device in a railway vehicl does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Selector valve for a pressure control device in a railway vehicl, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Selector valve for a pressure control device in a railway vehicl will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1021054

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.