Hydraulic unit for vehicle brake apparatus
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United States of America Patent
Stats
-
Jan 31, 2017
Grant Date -
Dec 17, 2015
app pub date -
Jun 10, 2015
filing date -
Jun 12, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A hydraulic unit for a vehicle brake apparatus having a master cylinder and a wheel cylinder includes a housing formed with a pipe line connecting between the master cylinder and the wheel cylinder, a pump disposed in the housing for sucking and discharging a brake fluid to boost pressure of the brake fluid, and a reservoir piston disposed in a hole formed in the housing so as to be movable slidably back and forth, the reservoir piston partitioning a reservoir chamber within the hole for temporarily storing the brake fluid discharged from the wheel cylinder. The hydraulic unit further includes a cover disposed in the hole to close one end on an atmospheric side of the hole, the cover being formed with a fluid reservoir chamber for storing the brake fluid leaking from the pump.
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