The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1992
Filed:
Aug. 17, 1990
G Emerson Brown, Niles, MI (US);
Allied-Signal Inc., Morristown, NJ (US);
Abstract
The master cylinder (12, 212) comprises either a nonboosted master cylinder (12), a vacuum servomotor (14) boosted master cylinder (12), or a hydraulic pressure boosted master cylinder (212), each of which includes a fluid supply regulator (37) disposed within an end (26) of the master cylinder (12, 212). The fluid supply regulator (37) comprises a regulator valve (40) disposed within a stepped bore (34, 234) at the end (26) of the master cylinder (12, 212), the stepped bore (34, 234) communicating with the secondary pressure chamber (32, 232) of the master cylinder (12, 212). Hydraulic pressure generated by movement of the secondary piston (18, 218) causes the supply reguglator valve (40) to be displaced and open a valve (54) within the stepped bore (34, 234) to permit pressure from a pump (70) and an accumulator (60) to be supplied to the adaptive braking system (80). If the master cylinder (12, 212) should experience a fluid pressure failure, a full stroke displacement of the secondary piston (18, 218) by the vehicle operator causes the secondary piston (18, 218) to engage and displace the supply regulator valve (40) so that fluid pressure is communicated to the adaptive braking system (80) and is directly proportional to the vehicle driver's input force.