Cost optimized electric EGR valve
AssigneeSiemens VDO Automotive Corporation
InventorsRussell Modien, Mike Gauthier
Life of this patent
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Abstract
An exhaust gas recirculation (EGR) valve includes an actuator mountable to a valve assembly such that a single actuator design can be utilized for different valve assemblies. The actuator is linked to the valve assembly through a calibration plug that provides for the calibration of an actuator armature position to a desired valve element position. The interface between the armature and valve element with the calibration plug provide adjustment and calibration to tailor operation of the actuator to a desired operation of the valve assembly.
Claims23
An emission control valve assembly for controlling the flow of exhaust gases comprising:
- a valve housing defining a flow path for exhaust gases;
- a valve element movable within the valve housing for controlling the flow of exhaust gases through the valve housing;
- a calibration plug attached to the valve element;
- and
- an actuator for selectively driving the valve element including an armature attached to the calibration plug.
A method of assembling an exhaust gas recirculation device comprising the steps of:
- a) defining a gas flow path through a valve housing;
- b) supporting a valve element within the valve housing;
- c) attaching an actuator to the valve housing;
- and
- d) positioning an armature of the actuator relative to the valve element in a desired relative orientation to calibrate operation of the valve element with operation of the actuator.
Dependencies are inferred from the claim text.