Portable engine-generator power unit with cooling

Claim 1

A portable engine-generator power unit adapted to rest on a floor comprising a base frame including peripheral side and end members defining a substantially rectangular enclosure; means for supporting said base frame above said floor; a housing resting on said base frame, said housing including side walls and end walls secured to said base frame and including a roof continuing said side and end walls; a fuel tank mounted on said side members and spaced from said side members, said end members and said floor to leave tank air spaces therebetween; beams spanning said enclosure and resting on said side members; an engine-generator set supported on said beams above said fuel tank leaving an engine air space therebetween communicating with said tank air spaces, said set including an engine radiator and a fan for blowing an airstream from the upstream, engine side of said radiator to the opposite downstream side thereof; means defining an opening in one of said housing end walls; a door panel mounted to swing on said end wall and having an air outlet therein; a shroud on said door surrounding said outlet and adapted in one position of said door to engage said radiator around the path of said airstream on the downstream side of said radiator; a loading coil for said generator; means for mounting said loading coil on said shroud within said airstream therein; and flexible conductors connected between said generator and said loading coil.