Patent · US Expired

Shiftable planetary transmission

US5397281A · kind A · utility

24Cited by
4References
14Claims
0Family size

Assignee

Inventor

Key dates

Filing dateFeb 26, 1993
Grant dateMar 14, 1995
Priority date
Expiry dateFeb 26, 2013

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2063/3036
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A shiftable planetary transmission having a housing, a non-rotatable or rotatable transmission component, a sun gear, a carrier and at least one planet gear mounted on the carrier. A rotatable ring gear is connected to the non-rotatable or rotatable transmission component. The ring gear has an annular surface facing the interior surface of the transmission component and a coupling arrangement is non-rotatably connected to the ring gear and a spring-loaded hydraulic activation mechanism is located within the ring gear to axially move the coupling arrangement.

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