Power steering device

Details Power steering device Power steering device

1980-03-07

1982-08-10

Cohan, Alan

Fluid handling

Systems

Multi-way valve unit

91368, 91375A, 251251, F15B 900

Patent

active

043433308

ABSTRACT:
A power steering device comprising: an input and an output shafts connected to each other by a torsion bar in a manner to be relatively rotatable in the same direction; a valve spool concentrically disposed around said input shaft and axially movably provided; balls provided in first moving paths and engaged with said valve spool; and pins formed on said valve spool and engaged with second moving paths. Said first moving paths are given torsions at a certain angle with respect to said second moving paths. Said valve spool is axially moved in accordance with a relative rotation between said input and output shafts to change one oil channel over to the other.

REFERENCES:
patent: 1722401 (1929-07-01), Todd
patent: 3292499 (1966-12-01), Duffy
patent: 3610105 (1971-10-01), Tomita

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