About 11 results
https://drivepatents.com/patents/1387593 · 29 Apr 2026
The braking device comprises: - a body (2) provided with at least one inlet port (3) of a pressurized working liquid, with at least one outlet port (4) connectable to the braking circuit (I) of a vehicle, and with at least one draining port (5) connectable...
https://drivepatents.com/patents/978970 · 5 Feb 2014
An electric brake device (16) includes a first slave piston (88b) which is housed in a cylinder body (82) and generates hydraulic pressure in a first hydraulic chamber (98b) by moving forward, a motor which transmits a driving force to the first slave pist...
https://drivepatents.com/patents/998737 · 5 Sep 2012
[Problem] Provided is a master cylinder hydraulic fluid flow control valve which can effectively decrease a pressure receiving area of a floating valve element when the floating valve element is seated on a valve seat, can favorably maintain a sealing func...
https://drivepatents.com/patents/1001167 · 20 Jun 2012
The servomotor (1) has a hydraulic fluid reservoir (14) in communication with a primary chamber (2) of a master cylinder (3) via a channel (15). A closing unit is provided with a valve (16), a sliding part (17) and an elastic unit (18) e.g. spring, to clos...
https://drivepatents.com/patents/1066654 · 7 Jun 2006
The cylinder has pistons each exhibiting a pressure chamber and a central valve (22), which is opened in a resting position of the piston to connect a pressure chamber with an equalization and castor connection over a piston channel. A valve body (34) is p...
https://drivepatents.com/patents/1070791 · 18 Jan 2006
To provide a plunger type master cylinder capable of reducing invalid stroke and preventing residual pressure without impairing durability of a seal ling (70). A piston (91) of the master cylinder has a recess (93) at its outer peripheral surface and a rel...
https://drivepatents.com/patents/1071941 · 7 Dec 2005
The hydraulic cylinder for a hydraulic system, especially a master cylinder for a hydraulic clutch, has a housing (12) with a bush formed therein for a longitudinally movable piston (18) which determines a variable pressure chamber (32) which is sealed aga...
https://drivepatents.com/patents/1071938 · 7 Dec 2005
The hydraulic cylinder for a hydraulic system, especially a master cylinder for a hydraulic clutch, has a housing (12) for a longitudinally movable piston (18) which determines a variable pressure chamber (32) which is sealed against atmospheric pressure b...
https://drivepatents.com/patents/1078944 · 30 Mar 2005
The cylinder has a check valve (18) hermetically sealing a pressure chamber connected to a feed chamber linked to a brake fluid tank. The valve has shutters (22) mounted in bores of pistons (8, 10) of hydraulic circuits (4, 6). A cylindrical pin (42) openi...
https://drivepatents.com/patents/1093741 · 27 Aug 2003
The braking system master cylinder has primary and secondary pistons (16, 44) that move axially inside working chambers (18, 52) linked by axial passages (22, 58) to fluid feed chambers (32, 60), and valves (26, 56) actuated by springs (28, 70) that close ...