Patent · US Expired

Gear box control cooling

US5878630A · kind A · utility

5Cited by

5References

26Claims

0Family size

Assignee

ZF FRIEDRICHSHAFEN AG · DE

Inventors

Bernhard Fessler · Friedrichshafen, DE
Josef Schwarz · Augsburg, DE
Gerhard Birkenmaier · Tettnang, DE

Key dates

Filing date	Oct 20, 1997
Grant date	Mar 9, 1999
Priority date	—
Expiry date	Oct 20, 2017

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T74/2189
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method and apparatus for cooling of a controller (16) of a transmission of a motor vehicle (6). A motor vehicle (6) has a transmission (2) in which or on which is provided a control mechanism (16, 18) actuated by a control fluid (40). The control electronic system (30, 32, 38) of the controller (16) is compulsorily cooled by a ducted supply of a control fluid (40) to the electronic system (30, 32, 38) or through the control electronic system (30, 32, 38). The control fluid (40) may be driven by a conveyor mechanism through a cooling channel (36) upon which the control electronic system is mounted with optimum heat conductivity.

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