| 摘要 |
<p>A self-contained service module incorporates a water cooled internal combustion engine as a primary power source which drives a low-pressure, high-volume forced air ventilation system; a water cooled, high-pressure air compressor, and an alternator. Large diameter steel tubing is utilized as a basic framework for the system and provides a dual function by supporting the primary components of the system and by serving as a reservoir for the high-pressure air. A heat exchange radiator is provided to remove heat from the engine and air compressor cooling liquid and heat the low-pressure air in the ventilation system. When heated air is not required, the radiator is moved to a second position so that air passing therethrough is exhausted from the unit and fresh air at ambient temperatures is provided by the ventilation system.</p> |
