Power steering gear with delashed piston nut and screw threading

Details Power steering gear with delashed piston nut and screw threading Power steering gear with delashed piston nut and screw threading

1978-09-25

1980-08-19

Maslousky, Paul E.

Motors: expansible chamber type

Working member position feedback to motive fluid control

Follower type

744248R, 85 1F, 151 7, 277 12, F15B 910

Patent

active

042178134

ABSTRACT:
Power steering gear with integral rotary valve for directing hydraulic pressure fluid to and from a piston nut and in which an elongated screw threaded through the piston nut is slit longitudinally to give the metallic screw a barrel-shape configuration with outwardly sprung sides. The sides of the screw are radially compressed inwardly by the piston nut when it is threaded through the piston nut to provide for a close fit between the meshing helical threads of the piston nut. Improved fluid sealing is provided by this construction with the slot being filled with a yieldable elastomer material which engages the helical threads of the piston nut.

REFERENCES:
patent: 33487 (1861-10-01), Marsh
patent: 2318415 (1943-05-01), Patzschke et al.
patent: 2407160 (1946-09-01), Kahn
patent: 2428783 (1947-10-01), Cole
patent: 4009641 (1977-03-01), Rohde et al.
patent: 4036110 (1977-07-01), Galonska et al.

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