Patent ID: 7506724
Filing Date: 2009-03-24
Classification: F01D,Y10T

Abstract:
1. A control system for a lubrication circuit of a turbine machine, the lubrication circuit having a supply pump and a scavenging pump jointly operated by a shaft of an electric motor for circulation of a lubricant through the lubrication circuit, the supply pump responsive to a motor control signal, the lubrication circuit providing an pressure signal representing the pressure of the lubricant, the control system comprising: a control device receiving the pressure signal from the lubrication circuit, the control device also receiving a maneuver signal, the control device providing to the lubrication circuit a motor control signal; and a control module residing in a digital memory of the control device, the control module operatively responsive to both the pressure signal and the maneuver signal in order to provide the motor control signal to vary the speed of the electric motor.