Patent · US Active

Planetary gear train of automatic transmission for vehicles

US9163705B1 · kind B1 · utility

29Cited by
4References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 1, 2014
Grant dateOct 20, 2015
Priority date
Expiry dateDec 1, 2034

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2200/2046
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A planetary gear train of an automatic transmission may include an input shaft, a first planetary gear set including a first sun gear, a first planetary carrier, and a first ring gear, a second planetary gear set including a second sun gear, a second planetary carrier, and a second ring gear, a third planetary gear set including a third sun gear, a third planetary carrier, and a third ring gear, a fourth planetary gear set including a fourth sun gear, a fourth planetary carrier, and a fourth ring gear, a fifth planetary gear set including a fifth sun gear, a fifth planetary carrier, and a fifth ring gear, first to ninth rotational shafts, and six friction elements selectively connecting the rotational shafts and the rotational shaft and the transmission housing.

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