Patent · US Expired

Load adjustment device

US5161508A · kind A · utility

18Cited by

6References

14Claims

0Family size

Assignee

VDO Adolf Schindling AG · DE

Inventors

Matthias Zentgraf · Frankfurt am Main, DE
Gerd Hickmann · Schwalbach am Taunus, DE
Peter Volz · Darmstadt, DE

Key dates

Filing date	Apr 19, 1991
Grant date	Nov 10, 1992
Priority date	—
Expiry date	Apr 19, 2011

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF02D2011/103
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A load adjustment device is provided with a throttle valve (9) which determines the output of an internal combustion engine and is fastened, fixed for rotation, to a throttle-valve shaft (32), which is mounted in a throttle-valve housing (30). In idle operation, the throttle-valve shaft (32) is adjusted by an electric motor (14) and a four-link gearing (16) connected behind it. This includes a pinion (14) which is arranged on an output shaft of the electric motor (14) and meshes with a gear segment (50) which is connected for drive via a second link (53) to a rotor (54) which drives the throttle-valve shaft (32). Due to the advantageous arrangement of the four-link gearing (16), a very large transmission ratio can be achieved between the output shaft (40) of the electric motor 14 and the throttle-valve shaft (32), so that a very small, cost-efficient electric motor is sufficient.

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