초록 ▼

A compact engine-operated generator unit having a high soundproof effect in which a generator thereof can be cooled efficiently as well as an engine and a muffler thereof. The engine-operated generator has an engine and a generator driven by the engine arranged in a row with a common rotary axis and

A compact engine-operated generator unit having a high soundproof effect in which a generator thereof can be cooled efficiently as well as an engine and a muffler thereof. The engine-operated generator has an engine and a generator driven by the engine arranged in a row with a common rotary axis and accommodated in a soundproof case. The generator, the engine and the muffler are arranged in order within the soundproof case and covered by a duct to be isolated from other instruments in the soundproof case; the duct has an end on the side of the generator opening to an interior of the soundproof case and another end on the side of the muffler opening to an exterior of the soundproof case; and a cooling fan is driven by the engine so that air in the soundproof case is inhaled through end opening of the duct on the side of the generator into the duct, sequentially cools the generator, the engine and the muffler in order and then is discharged through the end opening of the duct on the side of the muffler to the exterior.

대표청구항 ▼

[ What is claimed is:] [1.] An engine-operated generator unit having an engine and a generator driven by the engine arranged in a direction of a rotary shaft of the engine and accomodated in a soundproof case, wherein:the generator, the engine, and a muffler are arranged in order within said soundpr

[ What is claimed is:] [1.] An engine-operated generator unit having an engine and a generator driven by the engine arranged in a direction of a rotary shaft of the engine and accomodated in a soundproof case, wherein:the generator, the engine, and a muffler are arranged in order within said soundproof case and covered by a duct which is separate from and which surrounds the generator, engine, and muffler so as to isolate said generator engine, and muffler from other instruments in said soundproof case;said duct has an end opening on a side of said generator which opens on an interior of said soundproof case and another end opening on a side of said muffler communicating with an exterior of said soundproof case; anda cooling fan drivable by said engine so that air in said soundproof case is inhaled through the end opening of said duct on the side of said generator into said duct, substantially all of the inhaled air sequentially cools said generator, said engine, and said muffler in order and then is discharged through the other end opening of said duct on the side of said muffler to the exterior.