Electrostatic charge control inlet particle separator system

摘要

An inlet particle separator system for an engine includes an inner flowpath section, an outer flowpath section, a splitter, a first electrostatic discharge device, and a second electrostatic discharge device. The outer flowpath section surrounds at least a portion of the inner flowpath section and is spaced apart therefrom to define a passageway having an air inlet. The splitter is disposed downstream of the air inlet and extends into the passageway to divide the passageway into a scavenge flow path and an engine flow path. The first electrostatic charge device is disposed between the air inlet and the splitter and is electrostatically charged to a first polarity. The second electrostatic charge device is disposed downstream of the first electrostatic charge device and is electrostatically charged to a second polarity that is opposite to the first polarity.

主权项

1. An inlet particle separator system for an engine, comprising:
an inner flowpath section; an outer flowpath section surrounding at least a portion of the inner flowpath section and spaced apart therefrom to define a passageway, the passageway having an air inlet; a splitter disposed downstream of the air inlet and extending into the passageway to divide the passageway into a scavenge flow path and an engine flow path; a first electrostatic charge device disposed between the air inlet and the splitter and coupled to the inner flow path section, the first electrostatic charge device electrostatically charged to a first polarity to thereby impart an electrostatic charge of a first polarity to at least a portion of particulate entering the air inlet; a second electrostatic charge device disposed downstream of the first electrostatic charge device and coupled to the outer flowpath section upstream of the scavenge flow path, the second electrostatic charge device electrostatically charged to a second polarity that is opposite to the first polarity, whereby particulate charged to the first polarity is attracted toward the second polarity; a third electrostatic charge device disposed between the air inlet and the splitter and coupled to the inner flow path section, the third electrostatic device disposed downstream of, and separate from, the first electrostatic charge device and disposed upstream of, and separate from, the second electrostatic device, the third electrostatic charge device electrostatically charged to the first polarity to thereby repel particulate charged to the first polarity; and wherein there is no overlap between the second electrostatic charge device and the third electrostatic charge device along an axial direction with respect to a longitudinal axis of the engine flow path.