Abstract: [Problem] To provide a carburettor assembly which suppresses dripping of fuel from a nozzle to an air-fuel mixing passage during idling.

Abstract: The present invention relates to an air supply apparatus for a two-stroke stratified scavenging combustion engine. The air supply apparatus includes an air cleaner having an air outlet and a partition, such that the partition substantially divides the air outlet into a first section and a second section. The air supply apparatus further includes a carburetor. The carburetor includes a passage, a throttle valve and a choke valve, such that the throttle valve and the choke valve substantially divides the passage into an air portion and a mixture portion. Further, a first aperture in communication with the first section of the air outlet is provided corresponding to the air portion, and the second aperture in communication with the second section of the air outlet is provided corresponding to the mixture portion. Moreover, an area of the first section is different from that of the second section.

Abstract: A stratified scavenging two-cycle engine (10) comprising an engine body (11), a carburetor (12) equipped with a pivotable rotary valve (22) for switching between opening and closing of a single intake path, and an insulator (13) having heat insulating performance. The rotary valve (22) of the carburetor (12) is provided with a fuel injecting nozzle opening (26) open downward. Fuel from the nozzle opening (26) is injected in the directions corresponding to a mixed gas path (27) and to that portion of an air path (28) which is upstream in the mixed gas path (27).

Abstract: To reduce the occurrence of vibration without any need for adding an electronic component, changing an existing layout space, and the like. In each of magnetic pole teeth 42 of yokes 41a to 41d, a ratio of a length of a side 44c, which is a tip portion, to a width b of a root portion is 65% or more, and a ratio of its height h to the width b of the root portion is not less than 90% nor more than 110%, and its maximum width in a circumferential direction is set to a value within 30 degrees in terms of mechanical angle, and this enables a change in an amount of magnetic flux interlinked with a stator coil, so that a waveform of induced voltage of the stator coils 31a, 31b can be corrected to a form restraining the generation of a torque causing the occurrence of the vibration, and vibration level is by far lower than conventional vibration level.