Braking correction device

Details Braking correction device Braking correction device

1977-02-07

1977-11-22

Halvosa, George E. A.

Brakes

Position adjusters

Load

13762569, 251127, 251DIG1, 303 22R, B60T 818

Patent

active

040591743

ABSTRACT:
The braking correcting device of the hydraulic type comprises a housing in which is defined a cavity. A stepped piston is disposed movable in the cavity and has one end which projects outwards from the housing, the piston having a head slidable in a bore formed in the cavity of the housing for separating the cavity into an inlet chamber which adjoins the piston end face having the smaller effective cross sectional area, and an outlet chamber which adjoins the piston end face having the larger effective cross sectional area. The piston head contains a peripheral groove which receives with axial and radial clearance a ring of elastomeric material capable of disconnecting the two chambers when the piston moves a predetermined distance from its idle position which is fixed relative to the housing, overcoming a return force. The bore comprises a first portion having a fluid tight side wall adjoining the inlet chamber, and a second portion contiguous to the first portion and adjoining the outlet chamber. The second portion has a side wall which is permeable to hydraulic brake fluid.

REFERENCES:
patent: 1395469 (1921-11-01), Benbow
patent: 2517061 (1950-08-01), Stackelberg
patent: 3191999 (1965-06-01), Cordiano
patent: 3802750 (1974-04-01), Kawai
patent: 3826281 (1974-07-01), Clark

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