US 7,320,220 B1
EGR valve having integrated motor, controller, and flow meter
David Conway Atkinson, Dunlap, Ill. (US)
Assigned to Caterpillar Inc., Peoria, Ill. (US)
Filed on Dec. 15, 2006, as Appl. No. 11/639,160.
Int. Cl. F02B 33/44 (2006.01)
U.S. Cl. 60—605.2  [60/611] 21 Claims
OG exemplary drawing
 
1. A valve arrangement, comprising:
a housing at least partially defining a venturi passageway;
a first port disposed at an entrance to the venturi passageway;
a second port disposed at a throat of the venturi passageway;
a valve element disposed within the housing to regulate the flow of fluid through the housing;
a sensor mounted to the housing in communication with the first and second ports; and
a controller mounted to the housing in communication with the sensor, the controller being configured to affect movement of the valve element in response to input from the sensor.