Patent ID: 6039009
Filing Date: 2000-03-21
Classification: F02B

Abstract:
An engine-operated generator unit comprising: an engine and a generator driven by the engine arranged in a direction of a rotary shaft linking the engine and the generator;a soundproof case accommodating the engine, the generator and other components of the unit therein;a plate-like front frame member and a plate-like rear frame member partitioning an interior of said soundproof case into a front compartment, a center compartment and a rear compartment;a through hole formed in said rear frame member;a duct provided in communication with said through hole swelling out toward said center compartment and said rear compartment;said generator, said engine and a muffler being accommodated in said duct;a fuel tank and suction system instruments disposed outside of said duct within said center compartment; andelectric instruments disposed within said front compartment;a suction hole being formed in an outer wall of said front compartment;a communication hole being formed in said front frame member for communicating said front compartment with said center compartment;a suction opening of said duct opening into said center compartment; anda discharge opening of said duct opening to an exterior of said rear compartment, whereby outside air introduced into said front compartment through said suction hole enters said center compartment through said communication hole, is inhaled into said duct through said suction opening of said duct, sequentially cools said generator, said engine and said muffler in order, and then is discharged through said discharge opening to the exterior.