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1. (WO2017155934) BRAKE CYLINDER MAINTAINING VALVE
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Pub. No.: WO/2017/155934 International Application No.: PCT/US2017/021072
Publication Date: 14.09.2017 International Filing Date: 07.03.2017
IPC:
B60T 15/02 (2006.01) ,B60T 11/10 (2006.01) ,B61H 13/34 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
T
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
15
Construction, arrangement, or operation of valves incorporated in power brake systems and not covered by groups B60T11/ or B60T13/172
02
Application and release valves
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
T
VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
11
Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
10
transmitting by fluid means, e.g. hydraulic
B PERFORMING OPERATIONS; TRANSPORTING
61
RAILWAYS
H
BRAKES OR OTHER RETARDING APPARATUS PECULIAR TO RAIL VEHICLES; ARRANGEMENTS OR DIS-POSITIONS OF BRAKES OR OTHER RETARDING APPARATUS IN RAIL VEHICLES
13
Actuating rail-vehicle brakes
34
Details
Applicants:
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION [US/US]; 1001 Air Brake Avenue Wilmerding, Pennsylvania 15148, US
Inventors:
GAUGHAN, Edward W.; US
POTTER, William John; US
Agent:
BYRNE, Richard L.; US
SCHUSTER, Christian E.; US
KOMOROWSKI, Adam J.; US
GRESE, Michael J.; US
Priority Data:
62/304,59507.03.2016US
Title (EN) BRAKE CYLINDER MAINTAINING VALVE
(FR) VANNE DE MAINTIEN DE CYLINDRE DE FREIN
Abstract:
(EN) A brake cylinder maintaining system includes a main valve comprising a first diaphragm, a second diaphragm, and a valve member, with the first diaphragm having a reference pressure on one side of the first diaphragm and a brake cylinder pressure on an opposite side of the first diaphragm. The second diaphragm having a brake cylinder pressure on one side of the second diaphragm with the first diaphragm configured to move between a first position and a second position based on a differential between the reference pressure and the brake cylinder pressure. The valve member is configured to place a brake cylinder in fluid communication with a brake pipe when the first and second diaphragm are each in the second position and configured to isolate a brake cylinder from a brake pipe when the first diaphragm or the second diaphragm are in the first position.
(FR) La présente invention concerne un système de maintien de cylindre de frein qui comprend une vanne principale comprenant un premier diaphragme, un deuxième diaphragme et un élément de vanne, le premier diaphragme ayant une pression de référence sur un côté du premier diaphragme et une pression de cylindre de frein sur un côté opposé du premier diaphragme. Le deuxième diaphragme ayant une pression de cylindre de frein sur un côté du deuxième diaphragme avec le premier diaphragme configuré pour se déplacer entre une première position et une deuxième position sur la base d'un différentiel entre la pression de référence et la pression de cylindre de frein. L'élément de vanne est configuré pour placer un cylindre de frein en communication fluidique avec un tuyau de frein lorsque les premier et deuxième diaphragmes sont chacun dans la deuxième position et configurés pour isoler un cylindre de frein d'un tuyau de frein lorsque le premier diaphragme ou le deuxième diaphragme sont en première position.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)