Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1998-03-12
2000-07-11
Oberleitner, Robert J.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
3031171, 3031191, 13759616, B60T 836
Patent
active
060861657
ABSTRACT:
A solenoid controlled valve comprises a spool. One end side of the spool is slidably inserted into a first fluid chamber of a sleeve in a fluid tight condition. The other end of the spool is loosely inserted into a second fluid chamber. The spool with a stationary orifice is provided in an inlet path extending in axial direction. A spring for urging the spool and a movable core fixed to the spool, and a coil are provided. When electric current is supplied to the coil, the movable core is attracted against the spring force and the spool moves opposite to the urging direction of the spring, so that the external peripheral face of the spool closes the first port and the second port.
REFERENCES:
patent: 4915459 (1990-04-01), Hashida et al.
patent: 5234030 (1993-08-01), Kervagoret et al.
patent: 5437501 (1995-08-01), Kohno et al.
patent: 5577815 (1996-11-01), Hashida
patent: 5878782 (1999-03-01), Nakajima
Copy of an English Language Abstract of JP No. 49-28307.
Copy of an English Language Abstract of JP No. 5-65387.
Copy of an English Language Abstract of International Patent Publication No. WO95/09098.
Fujioka Hideaki
Hashida Koichi
Ohgaki Takato
Yasuzumi Kazumi
Oberleitner Robert J.
Sumitomo Electric Industries Ltd.
Sy Mariano
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