发明名称 |
HYDRAULIC UNIT FOR VEHICLE BRAKE APPARATUS |
摘要 |
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. |
申请公布号 |
US2015360669(A1) |
申请公布日期 |
2015.12.17 |
申请号 |
US201514735885 |
申请日期 |
2015.06.10 |
申请人 |
DENSO CORPORATION ;ADVICS CO., LTD. |
发明人 |
Koyama Fumitoshi;Sasaki Shin;Oonishi Jun |
分类号 |
B60T17/02;B60T13/16 |
主分类号 |
B60T17/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. A hydraulic unit for a vehicle brake apparatus having a master cylinder and a wheel cylinder comprising:
a housing formed with a pipe line connecting between the master cylinder and the wheel cylinder to allow a brake fluid to pass therethrough; a pump disposed in the housing for sucking and discharging the brake fluid to boost pressure of the brake fluid; 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; 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; and a drain passage formed in the housing for leading the brake fluid leaking from the pump into the fluid reservoir chamber. |
地址 |
Kariya-city JP |