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Integrated actuator unit for anti-skid brake control system for automotive vehicle

  • US 5,066,075 A
  • Filed: 12/26/1989
  • Issued: 11/19/1991
  • Est. Priority Date: 12/26/1988
  • Status: Expired due to Fees
First Claim
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1. An integrated actuator unit for an anti-skid automotive brake system comprising:

  • a cast casing defining a first space for receiving an inlet valve assembly for introducing a braking pressure built in a master cylinder of a hydraulic brake circuit to a wheel cylinder, and a second space for receiving an outlet valve assembly for draining braking pressure in the wheel cylinder, said inlet and outlet valves being selectively operated to open and closed positions for adjusting braking pressure in said wheel cylinder;

    and wherein said casing comprises a main body defining at one end open bores in a parallel relationship to each other, which bores serve as said first and said second spaces for receiving said inlet and outlet valves, and a cover member for sealingly closing the open ends of said bores;

    and wherein said casing further defines a third bore extending essentially perpendicular to said first and second bores and internally communicated at least with said first bore, said third bore serving for receiving a pressure accumulator connected to an integrally formed path which is connected a drain line of said hydraulic circuit for receiving a pressurized fluid via a fluid pump, which accumulator is connected to said first space for supplying pressurized fluid via a path integrally formed with said casing; and

    fluid flow path means integrally formed with said casing for communication with said hydraulic brake circuit and said first and second spaces.

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