Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal
Patent
1991-11-15
1994-04-05
Graham, Matthew C.
Fluid-pressure and analogous brake systems
Speed-controlled
Having a valve system responsive to a wheel lock signal
13759617, 303 842, F15B 13044, B60T 836
Patent
active
052998592
ABSTRACT:
The combination solenoid valve and shuttle valve (60, 160A-D, 260A-D) comprises a shuttle valve (50, 150) which is slidingly and sealingly received at or adjacent an end of the solenoid valve (40, 140). The shuttle valve (50, 150) includes a stepped interior opening (54, 154) which sealingly receives the end of the solenoid valve (40) or a valve part (140A), such that slidable movement of the shuttle valve (50) causes an insert (55, 55A, 155) within the interior opening (54, 154) to seat sealingly over either a solenoid insert seat (41C) or insert seat (141C) of the valve part (140A) in order to isolate pressure chambers (12A, 12B; 112A, 112B; 212A, 212B) of a master cylinder/hydraulic booster (12, 112, 212A, 212B) from a wheel brake (16, 116A-D, 216A-D). The shuttle valve (50, 150) may include a one way build orifice (30, 30 A, 130) which permits restricted fluid flow between a pressure source (18, 101, 201) and the wheel brake (16, 116A-D, 216A-D), a feedback orifice (36, 36A) which permits restricted fluid flow from the pressure source (18) to the master cylinder (12), a pump check valve (23, 123) which prevents fluid flow from the shuttle valve (50, 150) back toward the pressure source (18, 101, 201) and a poppet check valve or floating feedback washer (38, 38A) which when displaced permits fluid flow from the master cylinder (12) toward the wheel brake (16).
REFERENCES:
patent: 3909073 (1975-09-01), de Gennes
patent: 4719300 (1987-12-01), Heess et al.
patent: 4844114 (1989-07-01), Martinic
patent: 4844119 (1989-07-01), Martinic
patent: 4859005 (1989-08-01), Rey et al.
patent: 4915459 (1990-04-01), Hashida et al.
patent: 4936344 (1990-06-01), Gilbert et al.
patent: 4938545 (1990-07-01), Shuey et al.
patent: 5123718 (1992-06-01), Tyler
Albert Timothy J.
Brown George E.
Grana Thomas A
Hendershot Jay A.
Lohraff Larry G.
Allied-Signal Inc.
Decker Ken C.
Graham Matthew C.
Palguta Larry J.
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