Turbine engine power optimization control system

Patent · Tue Sep 04 00:00:00 EDT 1984

OSTI ID:6057339

Moore, M S

Pushbutton controls are provided for the power management of a turbine powered aircraft; and these pushbuttons may be mounted on the aircraft pilot's control handwheel. The turbine engine has a maximum rated permissible rotational speed which initially increases with increasing air temperature and with increasing altitude or reduced pressure; and has an absolute maximum limitation, with this maximum permissible rotational speed decreasing at increasing temperatures starting at about 10 or 15 degrees below zero, centigrade; and these limitations are reduced when supplemental equipment such as de-icing equipment is turned on. In accordance with the present invention, a series of ''maps'', or rotational speed control characteristics reflecting the factors mentioned above, are provided, and the pushbutton controls select among these characteristics, with the ''take-off'' power button permitting the highest maximum speeds, etc. In addition, automatic timing to reduce the maximum power levels, such as ''Take-Off'' power or ''Performance Climb'' power, is provided, to avoid over-stressing the turbine engines. The system may include additional arrangements for limiting the maximum allowable rotational speed of the turbine engine to a speed below that indicated by any of the ''maps'', when certain pushbuttons such as the ''Approach'' pushbutton is actuated.

• Assignee: Semco Instruments Inc.
• Patent Number(s): US 4468924
• OSTI ID: 6057339
• Resource Relation: Patent File Date: Filed date 24 Sep 1982; Other Information: PAT-APPL-422863
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
COMPUTERIZED CONTROL SYSTEMS
DESIGN
TURBOJET ENGINES
ALTITUDE
ANGULAR VELOCITY
CONTROL EQUIPMENT
OPERATION
PERFORMANCE
POWER INPUT
CONTROL SYSTEMS
ENGINES
EQUIPMENT
VELOCITY
330103* - Internal Combustion Engines- Turbine
320201 - Energy Conservation
Consumption
& Utilization- Transportation- Air & Aerospace