Title:
IMPROVED MASTER CYLINDER FOR BRAKING SYSTEM
Document Type and Number:
WIPO Patent Application WO2003031245
Kind Code:
A3
Abstract:
The invention concerns a master cylinder comprising a body (12) delimiting a braking fluid supply chamber (14) and at least a primary pressurizing chamber (16), a primary piston (18) separating the supply and the primary chambers, axially mobile between an inactive position and a position for pressurizing the primary chamber (14), a feeding channel (40) and means (42) for connecting said feeding channel with the supply chamber. Said connecting means (42) include two axially offset openings (44, 46), called front and rear relative to the displacement direction of the primary piston (18) during braking, the front opening (46) capable of being at least partially closed, by displacement of the primary piston (18) such that, when the primary piston (18) is in its inactive position, the cross-section of the fluid passage through said front opening (46) is minimal.
Inventors:
DELAGE JEAN-PIERRE (FR)
NEN YANNICK (FR)
MANFREDINI STEPHANE (FR)
NEN YANNICK (FR)
MANFREDINI STEPHANE (FR)
Application Number:
PCT/FR2002/003406
Publication Date:
October 16, 2003
Filing Date:
October 07, 2002
Export Citation:
Assignee:
BOSCH GMBH ROBERT (DE)
DELAGE JEAN-PIERRE (FR)
NEN YANNICK (FR)
MANFREDINI STEPHANE (FR)
DELAGE JEAN-PIERRE (FR)
NEN YANNICK (FR)
MANFREDINI STEPHANE (FR)
International Classes:
B60T11/228; B60T11/232; B60T11/16; (IPC1-7): B60T11/228; B60T11/232
Foreign References:
| US6065292A | 2000-05-23 | |||
| US5449225A | 1995-09-12 |
Other References:
PATENT ABSTRACTS OF JAPAN vol. 1998, no. 13 30 November 1998 (1998-11-30)
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