Motor vehicles – Surface effect vehicles – Dynamic seal or fluid curtain
Patent
1993-01-29
1994-11-08
Focarino, Margaret A.
Motor vehicles
Surface effect vehicles
Dynamic seal or fluid curtain
91375A, 180149, 267277, G62D 506
Patent
active
053618610
ABSTRACT:
A power steering system includes a pair of valve members (42, 46) which are interconnected by a torsion-tension spring (52). During a steering maneuver, torque is applied to the torsion-tension spring (52) to effect increasing torsional deformation of the torsion-tension spring. Tensile force is also applied to the torsion-tension spring (52) to effect increasing axial deformation of the torsion-tension spring. The tensile force is applied to the torsion-tension spring (52) by interaction between rollers (110) of a thrust bearing (80) and annular arrays (84, 92) of cam surfaces (86, 94) which engage opposite sides of the rollers. The cam surfaces (86, 94) are connected with opposite ends of the torsion-tension spring (52) by rigid bodies(42, 62, 102, 76) so that any increase in the distance between the cam surfaces results in a corresponding elongation of the torsion-tension spring. The cam surfaces (86, 94) have a configuration such that the extent of axial deformation of the torsion-tension spring (52) during each increment of relative rotation decreases. This results in a decrease in the force required to effect each succeeding increment of axial deformation of the torsion-tension spring (52).
REFERENCES:
patent: 3118660 (1964-01-01), Saniewski
patent: 3709099 (1973-06-01), Dumeah
patent: 4557342 (1985-12-01), Drutchas
patent: 4598787 (1986-07-01), Drutchas
patent: 4632204 (1986-12-01), Honaga
patent: 4774847 (1988-10-01), Breitweg
patent: 4942803 (1990-07-01), Rabe et al.
patent: 5251669 (1993-10-01), Bishop
Boehler Anne Marie
Focarino Margaret A.
TRW Inc.
LandOfFree
Power steering system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Power steering system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power steering system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1775409