Patent · US Expired

Wheel hub drive

US5398776A · kind A · utility

29Cited by
4References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 30, 1993
Grant dateMar 21, 1995
Priority date
Expiry dateAug 30, 2013

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60K2007/0092
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A drive for selectively driving a wheel hub which includes a motor with a hollow output shaft driving a planetary gear train with a sun wheel on the hollow output shaft. An output element is fixed to a portion of the wheel hub and a multi-plate clutch or brake selectively connects and disconnects the wheel hub and the hollow output shaft. An axially movable rod operates the clutch or brake and pressurized hydraulic fluid and a spring shift the rod axially to connect and disconnect the clutch or brake to control rotation of the wheel hub by the motor.

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