A starter for an internal combustion engine includes a rotating shaft formed with a helical spline on an outer periphery thereof and which rotates by a rotation of a motor, a pinion gear helically splined to the rotating shaft and movable in an axial direction of the rotating shaft along a tooth surface of the helical spline, a lever receiving member disposed opposing an end surface in an axial direction of the pinion gear, moved by receiving an axial pushing force by a pushing member, and causing the pinion gear to engage with a ring gear of the internal combustion engine by a movement thereof, and a buffer member for restricting a movement of the pinion gear in a rotational direction when the pinion gear moves along the teeth surface of the helical spline.

A starter assembly includes a partial planetary gear set connected to a pinion gear slidable along a first axis. The starter also includes a motor casing housing a brushless electric motor and having a first bearing. The motor includes multi-phase stator and rotor assemblies arranged inside the casing concentrically relative to the first axis. The rotor assembly has a rotor with a shaft supported by the first bearing and connected to a sun gear engaging the gear set, and a rotor position and speed sensor target. The starter additionally includes a motor end-cap for mating with and enclosing the motor casing and having a second bearing supporting the shaft. The starter also includes an electronics cover with a power connector for mating with the end-cap and housing an electronic commutator assembly. The commutator assembly includes power electronics, and control processor electronics arranged between the end-cap and the power electronics.

An internal combustion engine for being mounted laterally on a saddle-type vehicle includes an AC generator disposed on an end portion of a crankshaft which is supported in a crankcase. An ACG cover covers the AC generator from outside widthwise across the vehicle. The ACG cover includes an electric power transmission line cover bulging portion covering electric power transmission lines extending to the ACG cover and bulging sideways outwardly widthwise across the vehicle. A crank angle sensor is disposed behind the electric power transmission line cover bulging portion in a vehicle front-back direction. The crank angle sensor is thus protected from flying stones, etc. without an increase in the number of parts used and an increase in the weight of the internal combustion engine.

A spring casing of a starter device of an internal combustion engine has a base body provided with a spring receptacle. A cover plate is provided to cover at least partially the spring receptacle. A connecting device is provided that connects the cover plate and the base body to each other. The connecting device secures the cover plate against a movement relative to the base body in a direction of a center axis of the spring casing. The connecting device only has a first part that is a component of the base body and a second part that is a component of the cover plate and has no further parts. A starter device with such a spring casing is provided.

A specialty nut and specialty ratchet driver device used to start an internal combustion engine, each with an integrated one direction clutch, designed to be an attachment for a commercially available battery operated drill/driver gun. The specialty ratchet driver with an integrated one direction clutch is inserted into the driver receptacle of the socket placed over the nut on the crank shaft of the engine. One end of a drive shaft is inserted into the one direction clutch portion of the specialty ratchet driver device and the other end of the drive shaft is inserted into the chuck of a battery operated drill/driver gun. The torque of the drill/driver gun turns the crank shaft of the engine with sufficient force to initiate starting of the engine. The one direction clutch then allows the engine to turn faster than the drill/driver so as not to impede the engine start up.

A motor used for a starter of an internal combustion engine includes a motor shaft; a slide bearing that rotatably supports the motor shaft; and a bearing support member that supports the slide bearing. The motor shaft includes a concave portion or a convex portion extending in a direction orthogonal to an axial direction, the concave portion and the convex portion each includes a first surface and a second surface which face each other and the slide bearing is configured to be divided into a plurality of sections in a circumferential direction or the axial direction of the motor, the slide bearing serves as a regulation member that regulates a deviation of the motor shaft in the axial direction by an engagement between the slide bearing with the concave portion or the convex portion.

A control apparatus controls the operation of a starter such that, after an idling stop is executed and before a request for starting an engine is subsequently issued, the control apparatus executes a preset which causes a pinion to engage a ring gear. A control apparatus controls the operation of a starter such that, after an idling stop is executed and before a request for starting an engine is subsequently issued, the control apparatus executes a preset which causes a pinion to engage a ring gear. It is determined that the preset condition has been cancelled, and the preset is again executed. In that case, the pinion is already engaged with the ring gear at the time point when a request for starting the engine is issued. In that way it is unnecessary for the control apparatus to push out the pinion after a start request is issued.

A belt-driven starter-generator includes a rotary shaft, and a pulley belt coupled on an outer peripheral surface of the rotary shaft. A key is press-fitted into a pocket formed between the rotary shaft and the pulley belt so as to fix the rotary shaft to the pulley belt. A coupling member is coupled to a thread formed on the outer peripheral surface of the rotary shaft so as to support one side of the pulley belt. Operational reliability and assembly convenience may be improved by the belt-driven starter-generator of the present disclosure.

A brushed DC includes a housing, a motor shaft, a cap, a restricting member and a spacer. The housing has a cylindrical portion with an axial end surface. The motor shaft has a protruding portion protruding from the cylindrical portion of the housing and an annular groove formed in an outer circumferential surface of the protruding portion. The cap is mounted to the cylindrical portion of the housing with an opposing surface of the cap opposed to the axial end surface of the cylindrical portion. The restricting member is mounted in the groove of the motor shaft and fixed between the axial end surface and the opposing surface to restrict axial movement of the motor shaft. The spacer is interposed, in a state of having been plastically deformed in an axial direction of the motor shaft during the mounting of the cap, between the opposing surface and the restricting member.

Provide an electromagnetic switch device for a starter, by which a winding fluctuation of a plurality of coils, of which wire diameters are different from each other, is prevented, which can be downsized and can be produced with a low cost. A bobbin, at which winding portions are separated by using a first flange portion which includes a first notch portion, second notch portions, and third notch portions, by which coils are led out, and a first separation wall and a second separation wall, which include the second notch portions and the third notch portions, by which coils are led out, is included, and a main aspiration holding coil, a sub-aspiration holding coil, and a resistance coil, of which wire diameters are different from each other, which are respectively wound around a first winding portion, a second winding portion, and a third winding portion, which are separated, are provided.