Vehicle power assisted steering apparatus

Details Vehicle power assisted steering apparatus Vehicle power assisted steering apparatus

1978-01-28

1979-11-13

Pekar, John A.

Motor vehicles

Surface effect vehicles

Dynamic seal or fluid curtain

60407, 91461, B62D 508

Patent

active

041740173

ABSTRACT:
A steering system includes a sensor device which is responsive to excessive steering effort to actuate a power assist for steering. A housing rotatably receives an input member and an output member which are rotatable relative to each other when the steering effort is excessive. The housing includes an inlet communicating with a source of pressurized air and an outlet opening to atmosphere. The input member and output cooperate to define a passage communicating the inlet with the outlet such that limited rotation between the input member and output member varies the communication of pressurized air through the passage. When the communication of pressurized air through the passage is varied, a relay valve in communication with the inlet is operable to actuate the power assist.

REFERENCES:
patent: 3033051 (1962-05-01), Reinke et al.
patent: 3463260 (1969-08-01), Baines et al.
patent: 3709099 (1973-01-01), Dumeah
patent: 3741074 (1973-06-01), Oxley et al.
patent: 3948338 (1976-04-01), Toshioka et al.

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