B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
303/83
B60T 11/22 (2006.01) B60T 11/224 (2006.01)
Patent
CA 1299615
MASTER CYLINDER WITH FAST FILL VALVING MECHANISM ABSTRACT OF THE DISCLOSURE The master cylinder (10) comprises a housing (12) having a longitudinal bore (14), a housing end (16) enclosed by a bearing member (18) which retains a sleeve member (20) within the bore (14), a reservoir (70) mounted on the housing (12) and a pair of pistons (30, 40) received slidably within the bore (14), one piston (30) extending through an end (24) of the sleeve member (20). The one piston has an end (32) which provides seating for a fast fill valving mechanism (110). The fast fill valving mechanism (110) comprises a piston support guide (120) supporting a fast fill seal (150) and seal retainer (160) between the support guide (120) and the surface (23) of the sleeve member (20). The seal retainer (160) engages one end (142) of a spring (140), the other spring end (143) located at the end (32) of the piston. Displacement of the one piston (30) within the bore (14) creates an increasing pressure which will, at a predetermined higher pressure, cause the spring (140) to collapse or bend and permit axial displacement of the seal (150) and seal retainer (160) away from sealing engagement with a portion (123) of the piston support guide (120), and thereby permit fast fill fluid pressure within the primary chamber (88) to communicate with an auxiliary chamber (180).
554953
Alliedsignal Inc.
Macrae & Co.
LandOfFree
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