Patent · US Expired

Power transmission system for a four-wheel drive

US4805718A · kind A · utility

9Cited by
7References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 1, 1986
Grant dateFeb 21, 1989
Priority date
Expiry dateAug 1, 2006

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB60K17/26
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A power transmission system for a four-wheel drive vehicle has front and rear wheel driving power transmission systems for transmitting the output of a transmission. A forward overrunning clutch and a reverse overrunning clutch are provided in one of the power transmission systems. One of the overrunning clutches can be selected in accordance with the operation of a driver of the vehicle. The overrunning clutch operates to transmit the power to corresponding wheels and to allow the selected wheels to rotate faster than the other wheels. A locking device is provided for locking both overrunning clutches.

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