Load adjustment device for an internal combustion engine controlled by throttle valve

US5172668A · kind A · utility

Assignee

• VDO Adolf Schindling AG · DE

Inventors

• Frank Gohring · Frankfurt, DE
• Erwin Schneider · Fulda, DE

Key dates

• Filing date: Jan 9, 1992
• Grant date: Dec 22, 1992
• Expiry date: Jan 9, 2012

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F02D11/106
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A load adjustment device for an internal combustion engine includes a throttle valve (4) which can be acted on via a the setting element (8) on the accelerator-pedal side and, also by an electromotive setting drive (12), their movements being decoupled. In order to be able to note both the idle position of the setting element (8) and a driver's wish for "idle" and, furthermore, the actual position value of the electromotive setting drive (12) for a position control circuit and the throttle-valve position for injection electronics, there is a drive potentiometer (25) associated with the electromotive setting drive (12). Also a throttle-valve potentiometer (24) is associated with the throttle valve (4). The drive (12) and the potentiometer (24) have a common support plate (19) which is fastened, fixed for rotation, to the drive shaft (11) of the electromotive setting drive (12). There are two wiper paths (21, 20), a wiper (21) for the drive potentiometer (25) being arranged fixed on the housing and a wiper (20) for the throttle-valve potentiometer (24) fastened, fixed for rotation, to a further setting element on the throttle-valve side. The further setting element is developed as th…