A pressure regulator configured to regulate a pressure of a working fluid by two pilot pressures, including: a spool valve mechanism having a spool; a first biasing mechanism configured to bias the spool toward the other end of the pressure regulator in its axial direction by a first pilot pressure in a first-pilot-pressure chamber; a second biasing mechanism configured to bias the spool toward the other end of the pressure regulator by a second pilot pressure in a second-pilot-pressure chamber; and a counter biasing mechanism configured to bias the spool toward one end of the pressure regulator by a pressure of the working fluid in a regulated-pressure chamber, wherein the counter biasing mechanism has a counter biasing piston configured to push the spool toward the one end of the pressure regulator by the pressure of the working fluid in the regulated-pressure chamber applied to the counter biasing piston.
Pressure regulator and hydraulic brake system for vehicle equipped with the same
2017-11-28
Patent
Elektronische Ressource
Englisch
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