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1. (WO2007005571) SLIP CONTROL BOOST BRAKING SYSTEM
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2007/005571 International Application No.: PCT/US2006/025510
Publication Date: 11.01.2007 International Filing Date: 29.06.2006
IPC:
B60T 13/74 (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
13
Transmitting braking action from initiating means to ultimate brake actuator with power assistance or drive; Brake systems incorporating such transmitting means, e.g. air-pressure brake systems
74
with electrical assistance or drive
Applicants:
KELSEY-HAYES COMPANY [US/US]; 12001 Tech Center Drive Livonia, MI 48150, US (AllExceptUS)
GANZEL, Blaise [US/US]; US (UsOnly)
Inventors:
GANZEL, Blaise; US
Agent:
PAVELKO, Douglas, V.; MacMillan, Sobanski & Todd, LLC One Maritime Plaza, Fifth Floor 720 Water Street Toledo, OH 43604, US
Priority Data:
60/695,63130.06.2005US
60/730,96628.10.2005US
Title (EN) SLIP CONTROL BOOST BRAKING SYSTEM
(FR) SYSTEME DE FREINAGE ANTIPATINAGE A SERVOCOMMANDE
Abstract:
(EN) A master cylinder includes a housing (30) and a first secondary piston (126) disposed in the housing. The first secondary piston cooperates with the housing to define a first secondary chamber (158) which changes volume as the first secondary piston moves in the houisng. A second secondary piston (127) is disposed in the housing and cooperates with the housing to define a second secondary chamber (162) which changes volume as the second secondary piston moves in the housing. A stepped primary piston (94) is disposed in the housing. The primary piston cooperates with the housing to define a primary chamber which changes volume as the primary piston moves in the housing. The primary piston defines an abutment surface (116) which can be driven into abutment with the first secondary piston and the second secondary piston to move the first secondary piston and the second secondary piston. A primary piston spring (118) maintains a restorative force on the primary piston when actuated.
(FR) L'invention concerne un cylindre principal, qui comprend un boîtier et un premier piston secondaire disposé dans le boîtier. Le premier piston secondaire coopère avec le boîtier pour délimiter une première chambre secondaire qui change de volume lorsque le premier piston secondaire se déplace dans le boîtier. Un second piston secondaire est disposé dans le boîtier et coopère avec le boîtier pour délimiter une seconde chambre secondaire qui change de volume lorsque le second piston secondaire se déplace dans le boîtier. Un piston primaire différentiel est disposé dans le boîtier. Le piston primaire coopère avec le boîtier pour délimiter une chambre primaire qui change de volume lorsque le piston primaire se déplace dans le boîtier. Le piston primaire délimite une surface de culée qui peut être amenée à former une culée avec le premier piston secondaire et le second piston secondaire pour déplacer ces derniers. Un ressort de piston primaire, lorsqu'il est actionné, exerce une force de rétablissement sur le piston primaire.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SY, 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, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT, LU, LV, MC, NL, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
KR1020080030641EP1907251JP2009502594US20090077963CN101636301IN507/CHENP/2008