Device for actuating a throttle valve of an internal combustion engine
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsMartin Spickermann, Berndt Roehrig
Life of this patent
Estimating the term…
Abstract
A device for actuating at least one throttle valve of an internal combustion engine is provided. When the throttle valve opening angles are small, the throttle valve and the actuating device are positively coupled, and when the throttle valve opening angles are large, the throttle valve and the actuating device are form lockingly coupled in the closing direction, but are only conditionally coupled in the opening direction, such that the throttle valve can be brought into operation for smaller throttle valve opening angles.
Claims16
A device for actuating at least one throttle valve of an internal-combustion engine, the device comprising:
- an actuating mechanism;
- a stop, which is swivellable about an axis via the actuating mechanism;
- a driving device corresponding with the stop, wherein the at least one throttle valve is swivellable via the driving device;
- wherein the stop limits movement of the at least one throttle valve in an opening direction, and is acted upon by a spring in a closing direction, the driving device following the stop while being acted upon by the spring;
- an adjusting mechanism operatively configured to perform a controlled throttle valve intervention;
- and
- wherein the stop and the driving device are mutually coupleable in a form-locking manner.
An interface for coupling an actuating mechanism with a throttle valve of an internal-combustion engine, the interface comprising:
- a stop which is swivelable about an axis via the actuating mechanism, the stop limiting movement of the throttle valve in an opening direction and being acted upon by a spring biased in a closing direction;
- a driving device operatively configured to correspond with the stop the driving device being spring-force biased to follow the stop, wherein the driving device is coupled to swivel the throttle valve;
- and
- wherein the stop and the driving device are unconditionally coupled in the closing direction of the throttle valve and only conditionally coupled via the spring force bias in the opening direction of the throttle valve.
Dependencies are inferred from the claim text.