Master cylinder with fast fill valving mechanism

Patent · Tue May 24 04:00:00 EDT 1988

OSTI ID:6843859

Gaiser, R F

A master cylinder is described comprising a master cylinder housing with a bore extending axially therein, a reservoir providing fluid for the bore, an end of the housing having a bearing member attached thereto and retaining a sleeve member within the bore, a pair of pistons associated with the master cylinder housing and one of the pistons extending through an opening in the bearing member, an end of the one piston having a piston support guide, fill seal, seal retainer, and spring means disposed threat between the end of the one piston and sleeve member and comprising an overcenter spring, the fast fill seal mounted upon the seal retainer which engages the spring means, the fast fill seal engaging sealably the sleeve member and the piston support guide, application movement of the one piston effecting increased pressure within an associated pressure chamber of the master cylinder and the increased pressure transmitted to a brake circuit. The increased pressure causes the seal retainer and fast fill seal to be displaced axially against biasing of the overcenter spring so that the fast fill seal disengages the piston support guide and permits fluid pressure within the chamber to be communicated past the fast fill seal and seal retainer.

• Assignee: Allied Corp., Morristown, NJ
• Patent Number(s): US 4745751
• OSTI ID: 6843859
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330100* -- Internal Combustion Engines
CYLINDERS
DESIGN
ENGINES
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MACHINE PARTS
OPERATION
PISTONS
SEAS
SLEEVES
SPRINGS
SURFACE WATERS