Patent ID: 8525359

Claim:
An engine generator comprising: an engine; a generator driven by the engine to generate electrical power; at least one inverter configured to convert the electrical power generated by the generator into an alternating current and to output the alternating current; a control device configured to control the engine and the generator; a fuel tank to store fuel to be supplied to the engine; an air cleaner configured to purify air to be supplied to the engine; a muffler configured to deaden exhaust noise of the engine; a radiator configured to cool coolant for the engine; and a housing accommodating the foregoing components, wherein at least one cooling air inlet is disposed on a first side of the housing corresponding to a first side of the engine, wherein a cooling air outlet is disposed on a second side of the housing corresponding to a second side of the engine, wherein a cooling air passage is disposed in the housing between the at least one cooling air inlet and the cooling air outlet, wherein the generator, the inverter, and the air cleaner are disposed further upstream than the engine along the cooling air passage, wherein the fuel tank, the radiator, and the muffler are disposed further downstream than the engine along the cooling air passage, wherein upon driving of a cooling fan of the engine by the engine, ambient air is incorporated as cooling air into the housing through the at least one cooling air inlet, allowed to flow from an upstream toward a downstream of the cooling air passage, and discharged to outside the housing through the cooling air outlet, wherein the at least one cooling air inlet comprises upper and lower first cooling air inlets respectively on upper and lower portions of the first side of the housing, wherein the at least one inverter comprises two, upper and lower inverters in the housing and in parallel to the first side of the housing, the upper and lower inverters respectively being opposite the upper and lower first cooling air inlets, wherein a support is disposed between and in parallel to the upper and lower inverters and the first side of the housing, wherein the support comprises a first duct constituting the cooling air passage, the first duct extending from the upper and lower first cooling air inlets toward the upper and lower inverters, and wherein the cooling air is allowed to flow through the at least one cooling air inlet into the first duct and is guided upward and downward along the upper and lower inverters.