Brake booster for an automotive vehicle

Details Brake booster for an automotive vehicle Brake booster for an automotive vehicle

1979-07-26

1984-11-27

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

91376R, 92 48, 92108, 92169, 605471, F15B 910

Patent

active

044845090

ABSTRACT:
In vacuum brake boosters for motor vehicles, the vacuum casing is conventionally made of sheet steel. The vacuum casing is subjected to mechanical and pneumatic forces which have to be absorbed by the casing components. This makes it necessary to construct the casing components so they are strong enough to take these forces. The result of such construction is, however, high costs and high weight. To eliminate these disadvantages, the invention provides a brake booster wherein the vacuum casing includes a pipe therein extending in approximately coaxial of the longitudinal axis of the vacuum casing and connected to the transverse end walls of the vacuum casing, the pipe enclosing the master cylinder push rod, and the movable wall of the brake booster is sealed relative to the pipe and slidable thereon.

REFERENCES:
patent: 11549 (1854-08-01), Ellis
patent: 42430 (1864-04-01), Boyle
patent: 905108 (1908-11-01), Scott
patent: 2930362 (1960-03-01), Riester, Jr. et al.
patent: 3101219 (1963-08-01), Herrera
patent: 3172338 (1965-03-01), Ackerman
patent: 3412649 (1968-11-01), Franz
patent: 3603208 (1971-09-01), Kytta

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