Patent · US Expired

Power steering system for vehicle

US5769178A · kind A · utility

1Cited by
6References
15Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 23, 1996
Grant dateJun 23, 1998
Priority date
Expiry dateMay 23, 2016

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB62D5/06
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

The power steering system for a vehicle includes a steering wheel, a torsion bar fixed to the steering wheel to rotate therewith, a hydraulic control unit for controlling hydraulic pressure generating from an oil pump in accordance with the rotation of the torsion bar, the hydraulic control unit being mounted around the torsion bar, and a power cylinder separated from the torsion bar and receiving the hydraulic pressure from the hydraulic control unit, the power cylinder having a piston meshed with a sector gear which is connected with a pitman arm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.