Title: Master cylinder assembly and brake system incorporating same

Abstract: A dual master cylinder has modular proportioners attached to an outlet from each pressurizing chamber. The master cylinder is shown installed in an X-split vehicle brake system. The master cylinder assembly includes a pressure failure warning device. The arrangement provides a minimum number of leak points, permits the master cylinder and the modular proportioners to be built and tested separately, and enhances serviceability since the modular proportioners can be separately replaced without removing the master cylinder. It also permits the master cylinder to be of a universal type with modular proportioners of various proportioning characteristics used in accordance with the particular vehicle application.

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Inventors: Brademeyer, David L. (Dayton, OH, US)

Application Number: 951586
Filing Date: 1978-10-16
Publication_date: 1980-07-22
Assignee: General Motors Corporation (Detroit, MI)
Primary Class(es): 303/9.75 60/591, 188/349
Other Classes:
US Patent Ref:

3695730	Oct, 1972	Ayers	303/6.
3804468	Apr, 1974	Ishikawa	188/349.
3938333	Feb, 1976	Mathues	303/6.
3964795	Jun, 1976	Mathues	303/6.
4084377	Apr, 1978	Gaiser	340/52.

Other Refs:
Primary Examiner: Blix, Trygve M.
Assistant Examiner: Eisenzopf, Reinhard J.
Attorney: McGraw; D. D.