Patent · US Expired

Power transmission mechanism

US7128683B2 · kind B2 · utility

76Cited by
2References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 16, 2004
Grant dateOct 31, 2006
Priority date
Expiry dateMay 25, 2025

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2200/2012
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A power transmission mechanism for an automatic transmission, configured to establish seven or more forward speeds and one reverse speed. The power transmission mechanism includes four simple planetary gears, three connection members interconnecting two of the rotating members of the planetary gears, three clutches selectively connectable between two of the rotating members, and four brakes each operable to hold selectively against rotation one of the rotating members.

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