Hydraulic anti-locking brake unit

Details Hydraulic anti-locking brake unit Hydraulic anti-locking brake unit

1993-02-01

1994-03-01

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

3031132, 3031162, 3031191, 303901, 3031171, B60T 832, B60T 848

Patent

active

052900983

ABSTRACT:
A hydraulic anti-locking brake unit is presented in which the brake line is shut off by an isolating valve 20 during a control action. For the reduction of the pressure, the outlet valve 7 is opened, so that the pump 14 delivers hydraulic fluid out of the wheel brake into the high-pressure accumulator 19. For a renewed pressure build-up, the inlet valve 6 is opened, so that hydraulic fluid flow is directed out of the high pressure accumulator 19 to the wheel brake. In order to be able to utilize a high pressure accumulator having a low receiving capacity, various valving arrangements are disclosed to direct excess flow from the pump either to the master cylinder or a low pressure accumulator.

REFERENCES:
patent: 4618189 (1986-10-01), Nakanishi et al.
patent: 4703979 (1987-11-01), Nakanishi et al.
patent: 4957330 (1990-09-01), Morikawa et al.
patent: 5094511 (1992-03-01), Becker et al.

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