DONALD H HALL
Engineering in Middleton, MA
License number
Massachusetts 28391
Expiration Date
Jun 30, 1984
Type
Mechanical Engineer
Address
Address
Middleton, MA 01949
Personal information
See more information about DONALD H HALL at radaris.comName
Address
Phone
4 Circuit Ave, Wareham, MA 02571
4 Old Colony Dr #3, Westborough, MA 01581
498 Dickinson St, Springfield, MA 01108
Professional information
Independently Actuated Control Valves For Steam Turbine
US Patent:
4604028, Aug 5, 1986
Filed:
May 8, 1985
Appl. No.:
6/731691
Inventors:
Thomas L. Yeaple - Lynn MA
James B. Wagner - Peabody MA
Donald H. Hall - Middleton MA
James B. Wagner - Peabody MA
Donald H. Hall - Middleton MA
Assignee:
General Electric Company - Lynn MA
International Classification:
F01D 1718
US Classification:
415 38
Abstract:
A control system for a steam turbine employs complementary-sized nozzle groups receiving steam in a sequence which employs the smallest possible sized group receiving steam from a control valve of the smallest possible capacity as the governing valve. All other control valves remain either fully open or fully closed. An optimum path may be followed to select a highest-efficiency transition between valve combinations.