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GAS TURBINE ENGINE WITH INERTIAL PARTICLE SEPARATOR

  • US 20190331025A1
  • Filed: 11/28/2018
  • Published: 10/31/2019
  • Est. Priority Date: 04/27/2018
  • Status: Active Grant
First Claim
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1. An inertial particle separator configured for communicating with an engine inlet of an aircraft engine having an axis, the inertial particle separator comprising:

  • a main duct having an inlet fluidly connected to an environment outside of the aircraft engine and an outlet configured for being fluidly connected to the engine inlet, the main duct having a first side facing away from the axis and a second side opposed to the first side and facing toward the axis, the inlet for receiving an airflow from the environment along a first direction;

    a bypass duct stemming from the main duct between the inlet and the outlet, the bypass duct being fluidly connected to the main duct; and

    a splitter defined by an intersection of the main duct and the bypass duct, the splitter having a leading edge,wherein the second side of the main duct at the inlet extends from the inlet along a second direction defining an angle (a) of at most 45 degrees with the first direction,wherein, the main duct has a radially outward-most section between the inlet and the splitter, the radially-outward most section having a height (H1) extending from the first side to the second side and a width (W1), wherein W1/H1

    0.5,wherein a length (G1) from the second side to the first side and from the radially-outward most section along a direction parallel to the second direction is at least as great as the height (H1) of the main duct at the radially outward-most section,wherein a height (H2) of the main duct from the leading edge of the splitter and the second side of the main duct is at most four times the height (H1) of the main duct at the radially outward-most section, andwherein a height (S1) of the bypass duct from the first side at an end of the length (G1) to the leading edge is at least 20% of the height (H1) of the main duct at the radially outward-most section.

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