ICE STARTER Russian patent published in 2017 - IPC F02N15/02 F02N11/08 

FIELD: engines and pumps.

SUBSTANCE: starter contains an electric motor and a planetary gearbox. When starting the internal combustion engine, a screw mechanism is used. The carrier shaft of the planetary gearbox is placed inside the electromagnetic coil together with a drive gear bushing attached to the shaft. There are screw grooves made with an angle of inclination to its longitudinal axis of 20-30° on the outer surface of the carrier shaft. The screw grooves of the carrier shaft are in connection with the screw nut of the clutch screw mechanism, the outer protrusions of which enter the grooves of its drive gear. The drive gear bushing together with the outer protrusions of the screw nut of the carrier shaft are the core of the electromagnetic coil. There is a spacer helical coil spring with left-hand winding between the screw nut of the carrier shaft and the drive gear. The motor start-up terminals made together with the insulated pins exit the silumin cover outside between the constant excitation magnets of the motor stator. The contact terminals for starting the motor are closed by an annular magnetizing contactor. The thrust ring of the drive gear is mounted on the front end of the carrier shaft to limit its travel. The return helical coil spring of the annular steel contactor serves to open the contact of the annular steel contactor with the contact terminals of the motor start-up when the electromagnetic coil is switched off. Two covers of the motor stator are pulled together by two steel pins.

EFFECT: simplified device, reduced overall dimensions and weight, increased reliability and durability in operation.

1 dwg