Patent · US Expired

Gear change-speed unit for automatic transmission

US6935985B2 · kind B2 · utility

55Cited by
3References
20Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 16, 2003
Grant dateAug 30, 2005
Priority date
Expiry dateJul 16, 2023

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2200/2097
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A gear change-speed unit for an automatic transmission includes a reduction planetary-gear set, a single-pinion type planetary-gear set, and a double-sun-gear type planetary-gear set, which are disposed in parallel in this order from the side of an input shaft.

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