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Title:
BRAKING DEVICE
Document Type and Number:
WIPO Patent Application WO/1998/013244
Kind Code:
A1
Abstract:
Connected midway a primary passage (18), which connects a master cylinder (14) and a braking cylinder (10) to each other, is a discharge side of a pump (16) through an auxiliary passage (20), and provided on a portion of the primary passage (18) between a connection of the primary passage (18) and the auxiliary passage (20) and the master cylinder (14) is a pressure regulating valve (22) adapted to permit a working liquid from the pump (16) to leak to the master cylinder (14) when a discharge pressure of the pump (16) tends to be higher than a set value relative to a master cylinder liquid pressure. The pump (16) is actuated during a braking operation and when it is necessary to generate a higher liquid pressure in the braking cylinder (10) than the master cylinder liquid pressure.

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Inventors:
SAKAMOTO SHIGERU (JP)
OHNUMA YUTAKA (JP)
ITOH KENJI (JP)
SUZUKI MASAKUNI (JP)
SAWADA KOUICHI (JP)
ISONO HIROSHI (JP)
NOGUCHI NOBORU (JP)
Application Number:
PCT/JP1997/003348
Publication Date:
April 02, 1998
Filing Date:
September 19, 1997
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
SAKAMOTO SHIGERU (JP)
OHNUMA YUTAKA (JP)
ITOH KENJI (JP)
SUZUKI MASAKUNI (JP)
SAWADA KOUICHI (JP)
ISONO HIROSHI (JP)
NOGUCHI NOBORU (JP)
International Classes:
B60T8/32; B60T8/34; B60T8/36; B60T8/44; B60T8/48; B60T13/16; B60T13/565; B60T13/66; B60T13/68; B60T13/72; (IPC1-7): B60T13/66
Foreign References:
JPH04244464A1992-09-01
JPH05229418A1993-09-07
JPH06312658A1994-11-08
JPH06344894A1994-12-20
JPH0592760A1993-04-16
JPH06255472A1994-09-13
JPS5576744A1980-06-10
Other References:
See also references of EP 0928730A4
Attorney, Agent or Firm:
Kando, Norikazu (Toyo-Bluiding 14-16, Meieki 3-chome, Nakamura-k, Nagoya-shi Aichi 450, JP)
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