Patent · US Expired

Hydrokinetic coupling apparatus in particular for motor vehicle

US6736247B2 · kind B2 · utility

4Cited by
4References
33Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 2001
Grant dateMay 18, 2004
Priority date
Expiry dateMar 3, 2022

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16H2045/0278
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

The invention concerns an apparatus comprising a housing (12) with a radial wall (14) coupled with another input shaft, a turbine wheel (104) coupled with a hub (54) and an output shaft; and a lockup clutch comprising a piston (40); an annular friction disc (152) with global radial orientation, coupled in rotation with the turbine wheel (104)/hub (54) assembly and bearing on a first surface a first counter-track (210) co-operating with a first friction track (200) integral with the piston to define a first annular friction zone (Z1), and which bears on its second surface opposite to the first surface, a second counter-track (230) co-operating with a second friction track (220) integral with the radial wall (14) to define a second annular friction zone (Z2). The invention is characterized in that the first and second friction zones (Z1, Z2) are radially offset relative to each other.

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