Air flow arrangement for generator enclosure

A generator structure, comprising:

• an enclosure having first and second spaced sidewalls interconnected by first and second end wails so as to define an interior for receiving an engine and an alternator therein;
• a roof structure supported on the end walls of the enclosure, the roof structure including:
• an upper panel having a first opening therethrough and first and second sides generally parallel to the sidewalls of the enclosure;
• first and second side panels extending from corresponding sides of the upper panel such that each side panel partially overlaps a corresponding sidewall of the enclosure, the first side panel and the first sidewall defining a first inlet therebetween and the second side panel and the second sidewall defining a second inlet therebetween;
• and
• a separation panel extending between the side panels such that the separation panel and the upper panel define an attic chamber therebetween;
• the separation panel and the first end wall define a first attic inlet to allow the interior of the enclosure to communicate with the attic chamber;
• and the separation panel and the second end wall define a second attic inlet to allow for communication between the interior of the enclosure and the attic chamber;
• an air flow generator positioned within the interior of the enclosure for drawing ambient air through the first and second inlets in the roof structure and into the interior of the enclosure and for urging air from the interior of the enclosure through the attic chamber in the roof structure and out of the generator structure through the first opening in the upper panel;
• and
• a muffler operatively connected to the engine, the muffler positioned within the attic chamber in the roof structure such that the air urged from the interior of the enclosure passes over the muffler prior to exiting the generator structure.

A generator structure, comprising:

• an enclosure having first and second spaced sidewalls interconnected by first and second end walls so as to define an interior;
• first and second generator sets positioned within the interior of the enclosure, each generator set including an engine, an alternator driven by the engine and having an electrical output, and a radiator operatively connected to the engine;
• a control structure for selectively connecting the electrical output of the alternator of the first generator set and the electrical output of the alternator of the second generator set;
• a roof structure supported on the end walls of the enclosure, the roof structure including:
• an upper panel having first and second openings therethrough and first and second sides generally parallel to the sidewalls of the enclosure;
• first and second side panels extending from corresponding sides of the upper panel such that each side panel partially overlaps a corresponding sidewall of the enclosure, the first side panel and the first sidewall defining a first inlet therebetween and the second side panel and the second sidewall defining a second inlet therebetween;
• and
• a separation panel extending between the side panels such that the separation panel and the upper panel define an attic chamber therebetween;
• the separation panel and the first end wall define a first attic inlet to allow the interior of the enclosure to communicate with the attic chamber;
• and the separation panel and the second end wall define a second attic inlet for allowing for communication between the interior of the enclosure and the attic chamber;
• a first air flow generator positioned within the interior of the enclosure for drawing ambient air through the first and second inlets in the roof structure, across the engine of the first generator set and through the radiator of the first generator set and for urging air from the interior of the enclosure through the attic chamber in the roof structure and out of the generator structure through the first opening in the upper panel;
• and
• a second air flow generator positioned within the interior of the enclosure for drawing ambient air through the first and second inlets in the roof structure, across the engine of the second generator set and through the radiator of the second generator set and for urging air from the interior of the enclosure through the attic chamber in the roof structure and out of the generator structure through the second opening in the upper panel.

A generator structure, comprising:

• an enclosure having first and second spaced sidewalls interconnected by first and second end walls so as to define an interior;
• first and second generator sets positioned within the interior of the enclosure, each generator set including an engine, an alternator driven by the engine and a radiator operatively connected to the engine;
• a roof structure supported on the end walls of the enclosure, the roof structure including:
• an upper panel having first and second openings therethrough and first and second sides generally parallel to the sidewalls of the enclosure;
• first and second side panels extending from corresponding sides of the upper panel such that each side panel partially overlaps a corresponding sidewall of the enclosure, the first side panel and the first sidewall defining a first inlet therebetween and the second side panel and the second sidewall defining a second inlet therebetween;
• and
• a separation panel extending between the side panels such that the separation panel and the upper panel define an attic chamber therebetween;
• the separation panel and the first end wall define a first attic inlet to allow the interior of the enclosure to communicate with the attic chamber;
• and the separation panel and the second end wall define a second attic inlet for allowing for communication between the interior of the enclosure and the attic chamber;
• a first air flow generator positioned within the interior of the enclosure for drawing ambient air through the first and second inlets in the roof structure, across the engine of the first generator set and through the radiator of the first generator set and for urging air from the interior of the enclosure through the attic chamber in the roof structure and out of thc generator structure through the first opening in the upper panel;
• a second air flow generator positioned within the interior of the enclosure for drawing ambient air through the first and second inlets in the roof structure, across the engine of the second generator set and through the radiator of the second generator set and for urging air from the interior of the enclosure through the attic chamber in the roof structure and out of the generator structure through the second opening in the upper panel;
• and
• first and second mufflers operatively connected to corresponding engines, each muffler positioned within the attic chamber in the roof structure.