F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
137/105
F15B 13/043 (2006.01) B60T 8/36 (2006.01)
Patent
CA 2016420
ABSTRACT OF THE DISCLOSURE The solenoid valve (10) is received within a cavity (12) of a modulator body (14). The valve (10) includes a first opening (22) for fluid received from a master cylinder or pump, and a top part (40) has second (44) and third (46) openings. The second opening (44) communicates fluid with a brake circuit and the third opening (46) communicates fluid with a sump circuit. An end member (20) includes the first opening (22) which extends transversely therethrough and communicates with a longitudinal opening (24) that communicates the first opening (22) with a chamber (50) contained in an upper body member (30). Disposed within the chamber (50) is a movable armature (60) having at one end a first valve (62) which may sealingly engage a seat (26) of the longi- tudinal opening (24) and at a second end a second valve (64) which may sealingly engage a seat (45) of the third opening (46). The armature (60) includes a pair of paral- lel axial passages (63) permitting fluid flow there- through. A wave washer (70) disposed between the end mem- ber (20) and armature (60) biases the armature (60) so that the second valve (62) normally closes the seat (45) of the third opening (46). An electrical coil (80) is disposed about the end member (20) and armature (60) and when energized causes the armature (60) to be displaced so that the first valve (62) closes the seat (26) of the longitudinal opening (24) and the second valve (64) opens the seat (45) of the third opening (46). Subsequent energization of the electrical coil (80) and fluid pres- sure received from the pump via the first opening (22) results in modulation of the armature (60).
Alliedsignal Inc.
Macrae & Co.
Tackett Wendell D.
LandOfFree
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