초록 ▼

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 receive

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).

대표청구항 ▼

A combination solenoid valve and shuttle valve, comprising a body having therein a bore comprising a first bore section, second bore section, and third bore section sealingly isolated from one another at the perimeter of the bore, the solenoid valve disposed within the bore and operable to open a va

A combination solenoid valve and shuttle valve, comprising a body having therein a bore comprising a first bore section, second bore section, and third bore section sealingly isolated from one another at the perimeter of the bore, the solenoid valve disposed within the bore and operable to open a valve therein in order to communicate said second bore section with said third bore section, and the shuttle valve disposed sealingly and slidably within said first and second bore sections, the shuttle valve having an interior opening which is received sealingly and slidably at an end of said solenoid valve, said solenoid valve including a seal member engaging a surface of the interior opening of said shuttle valve, the bore communicating at one end with a pressure source and the shuttle valve slidable to cooperate with said end of the solenoid valve in order to direct fluid from the pressure source primarily to the valve of the solenoid valve, a portion of the shuttle valve engageable with a valve seat of the solenoid valve so that fluid from said pressure source flows primarily through the shuttle valve and to the valve of the solenoid valve.