Prime-mover dynamo plants – Miscellaneous – Drive gearing
Patent
1987-08-11
1989-05-16
Shoop, Jr., William M.
Prime-mover dynamo plants
Miscellaneous
Drive gearing
290 1R, F02B 6304
Patent
active
048312770
ABSTRACT:
A power system specifically adapted to provide DC power for powering a DC load at a remote site under severe environmental conditions, such as is found at remote gas pipeline locations. The power system includes a slow speed heat engine adapted to be powered by fuel, preferably taken directly from the gas pipeline, the supply of which is controlled by means of a pressure regulator. The engine is adapted to be directly coupled to an oversized, slow speed three-phase alternator so as to produce AC power, which is subsequently rectified to DC power output for powering a load in the range of 500 to 5,000 watts. The engine is particularly adapted to be started with a hand crank or a portable starter, and is provided with ceramic main bearings, an oversized lubrication system, redundant independent ignition systems and a highly superior cooling system. The cooling system includes a variable speed fan, the operation and speed of which is adapted to be automatically controlled in response to a sensed engine temperature for purposes of maintaining the engine temperature at a particular level. A rotary magnetic encoder system is provided for sensing the engine speed and for controlling the pressure regulator in response to the sensed speed to achieve optimum engine speed. Redundant safety shutdown systems are adapted to shut down the engine upon the occurrence of certain critical events. The remote power system is characterized by long life, minimal maintenance requirements and a mean time between failure equal to or in excess of 20,000 hours.
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Producing Your Own Power, edited by Carol Hupping Stoner, Rodale Press, Inc., pp. 48-52.
Duncanson Jr. W. E.
Gerken Karen M.
Hoffman Martin P.
Shoop Jr. William M.
Wasson Mitchell B.
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