Abutment key for the valve plunger of a braking assistance servo

Details Abutment key for the valve plunger of a braking assistance servo Abutment key for the valve plunger of a braking assistance servo

1986-03-26

1987-06-16

Garrett, Robert E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

F15B 910

Patent

active

046728821

ABSTRACT:
The planar abutment key (11) incorporates in its body portion (18) two flexible fingers (22) extending laterally and angularly in the direction away from the end portion (19) of the key which forms abutment arms (21) for the plunger, each finger (22) ending in a sharp angle (24), the transverse distance at rest between the sharp angles (24) being greater than the transverse width (d.sub.1) of the slot (12) in the hub portion of the assistance piston (1) in which the key (11) is housed.

REFERENCES:
patent: 3312147 (1967-04-01), Reichard
patent: 3688647 (1972-09-01), Kytta
patent: 4491058 (1985-01-01), Morin
patent: 4512237 (1985-04-01), Endoh et al.
patent: 4619185 (1986-10-01), Mori et al.

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