Stroke gain device for a master cylinder

Details Stroke gain device for a master cylinder Stroke gain device for a master cylinder

2005-08-16

2005-08-16

Look, Edward K. (Department: 3745)

Power plants

Pressure fluid source and motor

Pulsator

C060S594000

Reexamination Certificate

active

06928813

ABSTRACT:
A master cylinder wherein an input force applied to a bearing assembly pushes and rotates an input piston into a bore of a housing through the engagement between a helical groove on its outer surface and a pin on the housing to act on a primary piston in the bore that supplies pressurized fluid to wheel brakes. A threaded connection that connects the input piston to a primary master cylinder piston has an opposite direction thread from that of the helical groove in the input piston and as a result the input piston moves at a different rate of travel within the bore than the primary piston such that initial movement of the input piston is accentuated in the movement of primary piston and after a predetermined travel of the input piston into the bore, the input piston and primary piston travel in unison to effect a brake application.

REFERENCES:
patent: 6282896 (2001-09-01), Wachi et al.

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