Abstract: An engine blower includes a blower having a fan accommodated in a volute case, and an engine having a volute for generating a cooling air for self-cooling. An output shaft of the engine is provided with the fan without attaching a cooling fan for generating the cooling air. An outlet port for delivering a part of a blowing air generated by the fan is provided on the volute case.

Abstract: An engine blower includes a centrifugal blower, an engine, and a frame for supporting the centrifugal blower. The centrifugal blower is supported by a back support of the frame via a flexible vibration-proofing section while being connected to the back support via a belt-shaped stopper. An engaging hole is provided on at least one of the centrifugal blower and the back support, and a thick engaging section is provided on at least one end of the stopper for being engaged with the engaging hole. When the stopper is inserted into the engaging hole and the one end of the stopper is pulled, the engaging section is engaged with the engaging hole. By further pulling the one end of the stopper, the engaging section is tightly buried into the engaging hole. Thus, the stopper can be reliably attached to the centrifugal blower or the back support.

Abstract: An engine blower includes a blower having a fan accommodated in a volute case, and an engine having a volute for generating a cooling air for self-cooling. An output shaft of the engine is provided with the fan without attaching a cooling fan for generating the cooling air. An outlet port for delivering a part of a blowing air generated by the fan is provided on the volute case.

Abstract: An engine blower includes a centrifugal blower, an engine, and a frame for supporting the centrifugal blower. The centrifugal blower is supported by a back support of the frame via a flexible vibration-proofing section while being connected to the back support via a belt-shaped stopper. An engaging hole is provided on at least one of the centrifugal blower and the back support, and a thick engaging section is provided on at least one end of the stopper for being engaged with the engaging hole. When the stopper is inserted into the engaging hole and the one end of the stopper is pulled, the engaging section is engaged with the engaging hole. By further pulling the one end of the stopper, the engaging section is tightly buried into the engaging hole. Thus, the stopper can be reliably attached to the centrifugal blower or the back support.

Abstract: In a stratified scavenging two-cycle engine 1 whose crankshaft 30 is cantilevered, a crankcase 20 is provided with an opening 23 for housing the crankshaft 30, and a thick wall of the crankcase 20 is provided with a crankcase air passage 24. The opening 23 is fitted with a carburetor mount 50 that allows mounting a carburetor 70. Since the carburetor mount 50 covering the opening 23 of the crankcase 20 functions also as an alternative for a conventional insulator, there is no need to prepare a separate insulator, thereby reducing the number of components. Moreover, since the crankcase 20 is lower in temperature than the cylinder 10 in which combustion takes place, the carburetor mount 50 functioning as an insulator can be thinner, thereby downsizing the engine 1.

Abstract: An engine blower includes a muffler (9) provided to an engine and a volute case (31) accommodating a fan driven by the engine. On a muffler main body (10) of the muffler (9), an exhaust-gas guide member (21) covering an exhaust-gas outlet port and a cover hood (22) covering the exhaust-gas guide member (21) on the side of the outlet port are provided. Between the exhaust-gas guide member (21) and the cover hood (22), an outside-air introduction gap (23) is formed, through which outside air is introduced into the cover hood (22) by ejector effects. A blow-off port (32) for blowing off a part of pressure air in the volute case (31) to the outside-air introduction port (23) is only provided at a position substantially on a back side of the outside-air introduction gap (23).