Vacuum booster

Fluid-pressure and analogous brake systems – Speed-controlled – Having a valve system responsive to a wheel lock signal

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C091S37600A

Reexamination Certificate

active

07021724

ABSTRACT:
In a vacuum booster in which a reaction force mechanism is interposed between an input rod and a valve cylinder connected integrally with a booster piston, and an output rod, a valve piston is fitted onto an input piston connecting the input rod and the reaction force mechanism to be slidably movable forward from a predetermined retreat position with respect to the input piston, the valve piston is biased to the retreat position by a set spring, and locking device is provided between the valve piston and the valve cylinder to lock the valve piston at the valve cylinder thereby holding an atmosphere introduction valve seat in an open state at the time of emergency braking when the input piston moves forward by a predetermined number of strokes ahead of the valve cylinder. Thus, while a delay in atmosphere introduction into the operating chamber is eliminated irrespective of normal braking or emergency braking, the output is allowed to reach a servo limit point earlier and held at the time of emergency braking.

REFERENCES:
patent: 6516704 (2003-02-01), Inoue et al.
patent: 6564692 (2003-05-01), Inoue et al.
patent: 2002/0057013 (2002-05-01), Kuno et al.
patent: 2002/0073834 (2002-06-01), Shinohara
patent: 2003/0052533 (2003-03-01), Miwa et al.
patent: 2003/0056643 (2003-03-01), Takasaki et al.
patent: 09123900 (1997-05-01), None
patent: 10059164 (1998-03-01), None
patent: 2001-063551 (2001-03-01), None
patent: 2001-341632 (2001-12-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Vacuum booster does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum booster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum booster will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3577807

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.