초록 ▼

An anti-icing management system for a gas turbine engine according to which, at all times, only the required amount of heat is applied to inlet surfaces of the engine to prevent the formation of ice. Heated air is bled from the compressor discharge, or from some other suitable heat source, for this

An anti-icing management system for a gas turbine engine according to which, at all times, only the required amount of heat is applied to inlet surfaces of the engine to prevent the formation of ice. Heated air is bled from the compressor discharge, or from some other suitable heat source, for this purpose. The amount of flow of the heated air is adjusted by an electronic control responsive to the temperature of the anti-iced engine inlet surfaces directly in the path of incoming air. The electronic control may be effective to admit flow of the heated air to the region to be heated when a separate ice detector determines the presence of ice and so informs the control.

대표청구항 ▼

An anti-icing management system for a gas turbine engine including a compressor, a combustor, and a turbine, comprising: structural means at the inlet of the gas turbine engine having an outer surface and air ducting therein for receiving flow therethrough of heated air to thereby prevent the format

An anti-icing management system for a gas turbine engine including a compressor, a combustor, and a turbine, comprising: structural means at the inlet of the gas turbine engine having an outer surface and air ducting therein for receiving flow therethrough of heated air to thereby prevent the formation of ice on said outer surface; a source of heated air; passage means enabling the flow of heated air from said source to said air ducting; temperature sensor means on said outer surface directly in the path of incoming air for detecting the temperature of said outer surface and generating a signal proportional thereto; modulated valve means in said passage means operable for incremental movement between fully open and fully closed positions for regulating the flow of heated air therethrough between said source and said air ducting according to the temperature of said outer surface; and control means responsive to the signal from said temperature sensor means when the temperature of said outer surface falls to or below a predetermined value for continuously, incrementally operating said valve means as a function of the temperature of said outer surface to thereby provide only the required amount of heat to said structural means to prevent the formation of ice on said outer surface.