Prime-mover dynamo plants – Electric control – Engine control
Patent
1996-08-12
1998-08-04
Stephan, Steven L.
Prime-mover dynamo plants
Electric control
Engine control
290 40C, 290 51, 415 36, 415311, 415175, 60431, 60435, F02N 1106, H02P 904
Patent
active
057898227
ABSTRACT:
An electronic governor (34) to control a main steam valve (22) of a steam turbine (10) for controlling the rotational speed of a main drive shaft (16). The electronic governor (34) has a housing (36) in which an electric generator (104) is mounted to supply electrical energy to an electronic module (100) mounted on the housing (36). A hydraulic fluid pump (52) is mounted on the housing (36) and supplies fluid to a fluid operated piston (62) to effect a predetermined rotation of an output control shaft (32) and movement of main steam valve (22). Output signals from a microprocessor (116) to solenoid operated valves (96, 98) control the movement of fluid operated piston (62). Pump shaft (46) and generator shaft (48) are in axial alignment with and driven by the main drive shaft (16) to provide all of the power for operation of the electronic governor (34).
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Calistrat Michael M.
Revak Lynn A.
Enad Elvin G.
Revak Turbomachinery Services, Inc.
Stephan Steven L.
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