초록 ▼

In an engine generator unit, an engine is connected with an outer-rotor/magnet type generator that has a cantilevered outer rotor functioning also as a substitute for an engine fly wheel. Cooling fan device is attached to the outer rotor. The generator and cooling fan device are covered with a fain

In an engine generator unit, an engine is connected with an outer-rotor/magnet type generator that has a cantilevered outer rotor functioning also as a substitute for an engine fly wheel. Cooling fan device is attached to the outer rotor. The generator and cooling fan device are covered with a fain cover that is made of die-cast aluminum alloy. The fan cover has, at its one end remote from the engine, a cooling-air inlet portion for introducing cooling air from the outside via the cooling fan device, and a recoil starter is attached to the cooling-air inlet portion. Also, the fan cover is connected at its other end to the engine with a gap formed therebetween for blowing the cooling air onto an outer peripheral surface of the engine. Supporting leg members are secured to the fan cover and engine, and these leg members are also mounted to a framework via shock-absorbing members.

대표청구항 ▼

1. An engine generator unit comprising: an engine; an electric-power generator driven by said engine, said engine and said electric-power generator being provided coaxially in a direction of an output shaft of the engine, said electric-power generator being an outer-rotor/magnet type generator havin

1. An engine generator unit comprising: an engine; an electric-power generator driven by said engine, said engine and said electric-power generator being provided coaxially in a direction of an output shaft of the engine, said electric-power generator being an outer-rotor/magnet type generator having a cantilevered outer rotor functioning also as a substitute for a fly wheel of the engine; a cooling fan device attached to said outer rotor; a fan cover covering said electric-power generator and said cooling fan device, said fan cover being generally in a cylindrical shape and made of die-case aluminum alloy, said fan cover having, at a first end thereof remote from said engine, a cooling-air inlet portion for introducing cooling air from outside said engine generator unit via said cooling fan device, a recoil starter being attached to the cooling-air inlet portion, said fan cover being directly attached at a second end thereof opposite the first end to said engine so that the fan cover serves as a heat radiating member for radiating heat produced by the engine and having, at the second end, a cooling-air outlet portion for blowing the cooling air onto an outer peripheral surface of said engine; and supporting leg members secured to said fan cover and said engine, said supporting leg members being mounted to a frame via shock-absorbing members; wherein the cooling fan device comprises a centrifugal cooling fan device that forces the cooling air between the outer rotor and the fan cover so as to send the cooling air to the outer peripheral surface of the engine through the cooling-air outlet portion.