Patent ID: 8434445
Filing Date: 2013-05-07
Classification: F02D,F02M

Abstract:
1. An engine having an ignition system that generates an ignition signal, a piston, a rotating shaft that rotates in response to movement of the piston, and an automatic choke, the automatic choke comprising: a choke valve movable between a fully closed position and a fully open position; a motor connected to the choke valve and operable to move the choke valve in response to a motor control signal; a temperature sensor coupled to the engine and operable to provide a temperature signal indicative of a temperature of the engine; and a controller electrically connected to the motor and to the temperature sensor, the controller operable to control the choke valve for providing choke relief to the engine in at least two phases during a starting operation of the engine, wherein a first relief phase duration is based on a passage of a predetermined length of time and the duration of a second relief phase is based on a passage of a predetermined number of revolutions of the engine.