Patent ID: 7444982
Filing Date: 2008-11-04
Classification: F02D

Abstract:
1. An air intake shut-off valve for an engine having an air intake, the shut-off valve comprising; (a) a housing having an air-flow passage extending through the housing; (b) a flow control valve disposed in the air-flow passage, the flow control valve being movable between a first open position that permits air-flow through the passage and a second closed position that prevents air-flow through the passage; (c) actuation means for moving the flow control valve between its first open position and its second closed position, and for moving the flow control valve between its second closed position and its first open position; (d) switch means for activating and deactivating the actuation means; and (e) means for sealably connecting the air-flow passage to the air intake of the engine; wherein the actuation means is adapted to move the flow control valve between its first open position and its second closed position in a period of time that is greater than 1 second, but that is less than 6 seconds.