Patent · US Expired

Hydraulic torque converter

US4362017A · kind A · utility

1Cited by

8References

3Claims

0Family size

Assignee

Zahnradfabrik Friedrichshafen AG · DE

Inventors

Franz Boss · Kreßbronn, DE
Gerold Bieber · Tettnang, DE
Karlheinz Schachmann · Friedrichshafen, DE

Key dates

Filing date	Mar 7, 1980
Grant date	Dec 7, 1982
Priority date	—
Expiry date	Mar 7, 2000

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16H41/30
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A hydraulic torque converter with a toroidal space bounded by a pump member, a turbine member and a free-wheeling stator has an inlet channel for fresh transmission fluid (oil) which opens into the pump torus at a location spaced from the pump member, preferably via the stator, whereby the relatively cool volume of newly admitted fluid mingles with the fluid already present instead of being immediately centrifugated toward the peripheries of the pump and turbine members from which it would quickly return to the sump. The inlet channel may include one or more radial passages in a spacer ring separating the stationary races of the journal bearings by which the pump member and the stator are supported on a trunnion rigid with the converter housing.

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