Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1979-04-09
1980-10-21
Reger, Duane A.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
188344, B60T 826
Patent
active
042290503
ABSTRACT:
In a known motorcycle brake system, the pedal-actuated master cylinder acts on the front-wheel brake and the rear-wheel brake and the hand-actuated master cylinder acts on the front-wheel brake. The brake force regulator's control behavior provided by a stepped control piston is influenced by the hand-actuated master cylinder. This known system has functional disadvantages since the rear-wheel brake is evacuated of fluid by movement of the control piston if the hand-actuated master cylinder is actuated alone. In addition, the regulator's change-over point is reached at a relatively high pressure. These disadvantages are eliminated in the present invention by the provision of a valve adapted to close independently of the position of the stepped piston which is prevented from moving when the hand-actuated master cylinder is actuated alone by a stop against which the stepped piston abuts.
REFERENCES:
patent: 4027923 (1977-06-01), Saito
patent: 4174867 (1979-11-01), Oberthur
Hill Alfred C.
IT&T Industries, Inc.
O'Halloran John T.
Reger Duane A.
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