Hydraulic pump unit with orifice plate for vehicle brake control system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 4, 2005
Grant Date -
Mar 13, 2003
app pub date -
Jun 18, 2002
filing date -
Jun 27, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A hydraulic pump unit for vehicle brake control system comprising a pump housing, a cylinder received in a receiving hole formed in the pump housing. The cylinder has a bottom portion and is provided at the bottom portion with an outlet valve. A plunger is slidingly received in the cylinder and defines a pump chamber in cooperation with the cylinder. An inlet valve provided on the plunger, an inlet passage formed in the pump housing. An opening of the inlet passage is provided in the receiving hole. An outlet passage formed in the pump housing, an opening of the outlet passage is provided in the receiving hole. A plug member for closing an opening of the receiving hole, the plug member is fixed to the bottom portion of the cylinder, and an orifice plate having a passage is arranged between the bottom portion and the plug member.
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