Patent · US Expired

Device for actuating a throttle valve

US4840349A · kind A · utility

18Cited by

3References

3Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Cornelius Peter · Ansbach, DE
Uwe Schaper · Bühl, DE
Lothar Schmidt · Bochum, DE

Key dates

Filing date	Nov 15, 1988
Grant date	Jun 20, 1989
Priority date	—
Expiry date	Nov 15, 2008

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2011/102
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device that serves to actuate a throttle valve. The actuating device includes an electric drive motor and a step-down gear driven by the motor; an output shaft of the step-down gear is operatively connected to a throttle valve shaft which controls the throttle valve. The actuating device is compact in structure as well as versatile in use, even with various sizes of throttle valve, the step-down gear is embodied as a planetary gear having its output shaft provided with a gear wheel, which is operatively connected via a toothed belt with a second gear wheel, disposed on the throttle valve shaft. The motor is controlled by a control means assembled in the same housing as the motor and the throttle valve.

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