B - Operations – Transporting – 60 – T
Patent
B - Operations, Transporting
60
T
303/85
B60T 17/08 (2006.01) B60T 11/20 (2006.01) B60T 11/224 (2006.01)
Patent
CA 1132635
FAST-FILL MASTER CYLINDER ABSTRACT OF THE DISCLOSURE A fast-fill master cylinder includes a stepped bore within a housing to movably receive a pair of pistons. One of the pistons cooperates with a large diameter portion of the stepped bore to sub- stantially define a fast-fill chamber and also cooperates with a small diameter portion of the stepped bore and the other piston to substantially define a primary chamber. A reservoir communicates fluid to the fast-fill chamber and the primary chamber, The one piston carries a sealing member cooperating with the small diameter portion to close the primary chamber from the reservoir when the one piston is moved during a brake application. The one piston defines a metering land adjacent the sealing member and also includes at least one passage leading from the fast-fill chamber to the sealing member. During a first stage of braking fluid pressure generated in the fast-fill chamber in response to movement of the one piston is communicated to the primary chamber via the passage. At this time the metering land forms a restriction so that substantially all of the fluid communication from the fast-fill chamber to the primary chamber is by way of the passage. During second stage of braking the metering land is aligned with a port opening to the reservoir so that fluid pressure within the fast-fill chamber is gradually vented to the reservoir in response to movement of the one piston. The sealing member defines a radial outer portion in alignment with the metering land and a radial inner portion in alignment with the one passage. A retainer is biased toward the one piston to urge the sealing member in fluid-tight engagement with the piston at a radial location intermediate the metering land and the one passage.
349550
Crumb Donald A.
Lohraff Larry G.
Martinic Jack
Bendix Corporation (the)
Macrae & Co.
LandOfFree
Fast-fill master cylinder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fast-fill master cylinder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fast-fill master cylinder will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-382344