This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Digitally Controlled Fuel Metering Pump for Small Gas Turbine Engines
Annotation ability available
Sector:
Language:
English
Abstract
There is a need in the gas turbine industry for an inexpensive fuel control unit for the new breed of high performance small gas turbine engines. To answer this demand, it is proposed to couple an automotive type fuel pump with a stepper motor driven in microstepping mode. The speed of the motor and the fuel flow rate can be controlled by the frequency signal from the computer. This concept is particularly well suited for the gas turbine engine fuel supply where the fuel pressure at low speed is low and the fuel leakage in the pump is not high. The stepper motor driven by a microstepping driver can reach high speeds of several thousands rpm. The unit can be installed inside the fuel, supply tank, as is the case with electric fuel pumps found in automobiles. Prototypes have been made and tested. Both steady state and transient response are showing an impressive performance of such an electronic fuel metering pump. Also, the price, as compared to that of existing fuel control units for gas turbine engines, is favorable and has the tendency to go down with the spread of stepper motor drive technology.
Recommended Content
Citation
Krepec, T., Labbate, A., and Taylor, M., "Digitally Controlled Fuel Metering Pump for Small Gas Turbine Engines," SAE Technical Paper 910057, 1991, https://doi.org/10.4271/910057.Also In
References
- Freis, J. S. “Electronic Control System for a Modern Turboprop Engine,” SAE Technical Paper Series, 810620 January 1981
- Janich, S. “Full Authority Digital Control for a Small Turbine Helicopter Engine,” SAE Technical Paper Series, 831476 January 1983
- Georgantas, A.I. Krepec, T. Cheng, R.M.H. “Investigations on Electronically Actuated Metering Valve in a Fuel Control Unit for Small Gas Turbine Engines,” ASME International Computers in Engineering Conference New York City August 9-13 1987
- Krepec, T. Krepec, M. Georgantas, A.I. “Low Cost Electronic Fuel Control Concept for Small Gas Turbine Engines,” Seventh World Congress on the Theory of Machines and Mechanisms Sevilla, Spain September 17-22 1987
- Krepec, T. Georgantas, A.I. Taylor, M. To, C.H. “New family of Low Cost Electronic Fuel Control Units for Small Gas Turbine Engines,” SAE Technical Paper Series, 901039 April 1990
- Carrese, G. Krepec, T. To, C.H. “Testing and Simulation of a New Low Cost Fuel Control Unit for Small Gas Turbine Engines,” SAE Technical Paper Series, 901027 April 1990
- Norbye, J. P. Automotive Fuel Injection Systems - A Technical Guide Osceola: Motorbooks International 1981
- Kemmer, U. Rollwage, M. Rose, K. “New Generation of Bosch Electrical Fuel Pumps - Improvement in Hot-Fuel Handling and Noise,” SAE Technical Paper Series, 870120 February 1987