Patent · US Expired

Actuator for the frictional engaging device

US4895236A · kind A · utility

121Cited by
8References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 27, 1988
Grant dateJan 23, 1990
Priority date
Expiry dateJan 27, 2008

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16D2500/7044
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

An actuator for a four wheel drive transfer mechanism which is laid in a power transmission device and is controlled by an electrical signal sent from a controlling unit comprises a torque generating mechanism which converts electrical energy into a torque, and a torque-thrust conversion mechanism which converts the torque generated by the torque generating mechanism into a thrust force. The thrust force generated from the torque-thrust conversion mechanism is applied to the frictional engaging device to control torque distribution between front and rear vehicle wheels.

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