Brake fluid pressure control apparatus
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United States of America Patent
Stats
-
Apr 23, 1996
Grant Date -
N/A
app pub date -
Feb 17, 1995
filing date -
Feb 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A brake fluid pressure control apparatus includes a second pump communicating port disposed to face a first pump communicating port approximately perpendicularly to the direction of movement of a spool. The first and second pump communicating ports are connected to a master cylinder, and a check valve is provided between the master cylinder and the first and second pump communicating ports. The check valve is adapted to open when the master cylinder-side brake fluid pressure becomes a predetermined value higher than the pump discharge-side brake fluid pressure. A master cylinder communicating port is provided to extend along the direction of movement of the spool. A cut-off valve is provided between the master cylinder communicating port and the master cylinder. The cut-off valve is closed when the spool is moved to provide communication between the pump communicating ports and a wheel cylinder communicating port.
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