Fluid-pressure and analogous brake systems – Automatic – Equalizing valves
Patent
1987-03-18
1988-09-13
Kashnikow, Andres
Fluid-pressure and analogous brake systems
Automatic
Equalizing valves
303 82, B60T 1134, B60T 1704
Patent
active
047704721
ABSTRACT:
A freight brake control valve device in which the emergency piston slide valve is arranged to incorporate, in conjunction with the conventional service stability function provided thereby, an accelerated service application function in which a continuous local venting of brake pipe pressure is provided to hasten propagation of service rates of brake pipe reduction. A preliminary flow restrictor in one flow path and a primary flow restrictor in a parallel flow path control the quick-action chamber "breathing" rate such that the emergency piston is stabilized against movement to emergency position, as long as the brake pipe pressure reduction does not exceed a service rate. Following a service application, the preliminary flow restrictor has the further function of maintaining "breathing" until after the local reduction of brake pipe pressure is cut off, thereby assuring positive movement of the emergency piston to its service lap position.
REFERENCES:
patent: 1916299 (1933-07-01), Campbell
patent: 1947696 (1934-02-01), Chevillot
patent: 2027468 (1936-01-01), Campbell
Hart James E.
Weber, Jr. Charles L.
American Standard Inc.
Falce G. J.
Kashnikow Andres
Newholm Timothy
LandOfFree
Freight brake control valve having an emergency piston slide val does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Freight brake control valve having an emergency piston slide val, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Freight brake control valve having an emergency piston slide val will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-802634