Working piston, in particular for a brake booster

Details Working piston, in particular for a brake booster Working piston, in particular for a brake booster

1989-04-11

1991-04-16

Look, Edward K.

Expansible chamber devices

Collapsible chamber wall portion

Wall portion formed of flexible material

92 99, F01B 1900

Patent

active

050073290

ABSTRACT:
Working pistons, in particular those of brake boosters, have to tolerate a considerable number of changes in stress and great forces acting on the piston. Simultaneously, it is an object to construct the pistons as light-weight as possible. Due to the considerable forces in the axial direction, it is imperative for the piston to be well secured on the guiding axis. On the other hand, the central guide's projection securing the piston in the axial direction can cause local stresses on the piston and, thus, fatigue in the material which implies a premature failure of the piston. It is an object of this invention to improve the central circumference of the piston no longer is rigidly clamped into the central guide, but rather in that the inner end and the support are designed so as to enable a swivelling motion of the piston plate without local bending stress, thereby the life of the piston being considerably prolonged.

REFERENCES:
patent: 4531370 (1985-07-01), Hendrickson et al.
patent: 4534270 (1985-08-01), Nishii
patent: 4632014 (1986-12-01), Endo
patent: 4747336 (1988-05-01), Uyama
patent: 4803912 (1989-02-01), Nishii
patent: 4846047 (1989-07-01), Uyama et al.
patent: 4892027 (1990-01-01), Wagner et al.

Affiliated with

Also associated with

Rating

Working piston, in particular for a brake 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 Working piston, in particular for a brake booster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Working piston, in particular for a brake booster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-414057