About 97 results
https://drivepatents.com/patents/1077111 · 8 Jun 2005
In a vehicle braking system, a backup piston (88) pushes a master piston (26) directly from behind when hydraulic pressure of a boosted hydraulic pressure chamber decreases. The backup piston (88) has a piston body (88a) which is slidably fitted in a casin...
https://drivepatents.com/patents/1077110 · 8 Jun 2005
A vehicle braking system includes: a hydraulic booster (13) which applies output hydraulic pressure of a hydraulic power source (12) to a boosted hydraulic pressure chamber (25) after regulating the output hydraulic pressure as a control piston (90) operat...
https://drivepatents.com/patents/1077109 · 8 Jun 2005
A hydraulic controller includes: a pair of liquid chambers; and an on-off valve (116,117) capable of opening and closing a flow channel (152,159) on the side of the liquid chamber with a higher hydraulic pressure (143,130) out of the pair of liquid chamber...
https://drivepatents.com/patents/1077104 · 8 Jun 2005
A vehicle braking system includes: a hydraulic booster (13) which applies output hydraulic pressure of a hydraulic power source (12) to a boosted hydraulic pressure chamber (25) after regulating the output hydraulic pressure as a control piston (90) operat...
https://drivepatents.com/patents/1080808 · 12 Jan 2005
A normally closed solenoid valve includes a fixed core (22), a valve portion including a valve seat (42) and a valve body (20), a movable core (32) disposed between the fixed core (22) and the valve seat (42), a resilient biasing member (34) for biasing th...
https://drivepatents.com/patents/1081012 · 5 Jan 2005
In a vacuum booster (B) in which a reaction force mechanism (24) is interposed between an input rod (20) and a valve cylinder (10) connected integrally with a booster piston (4), and an output rod (25), a valve piston (33) is fitted onto an input piston (1...
https://drivepatents.com/patents/1081769 · 8 Dec 2004
A normally open solenoid valve (10), includes: a coil (12); a fixed core (20) that is excited when the coil (12) is energized, the fixed core (20) having a through hole (22) and an opening formed at an end of the through hole (22); a valve seat (42) dispos...
https://drivepatents.com/patents/1081766 · 8 Dec 2004
An electromagnetic valve (10) comprising has a valve seat, a valve element movable relative to the valve seat (40) so as to open or close a hydraulic fluid passage interposed therebetween and a plunger (24) movable together with the valve element (30) rela...
https://drivepatents.com/patents/1081753 · 8 Dec 2004
A plunger pump, includes: a plunger pump unit including a pump chamber and a plunger for pressing a hydraulic fluid in the pump chamber to perform a discharging operation of the hydraulic fluid; a motor; and a camportion driven by the motor to rotate and p...
https://drivepatents.com/patents/1084773 · 18 Aug 2004
A reservoir union (1) for a hydraulic master cylinder of a vehicle for providing fluid stored in a reservoir to a master cylinder comprising a body connecting pipe (4) projected and provided on a lower side of a reservoir union body (1c) so as to connect w...