Inlet particle separator system with flow passage through hub and/or shroud

摘要

An inlet particle separator system for a vehicle engine includes a hub section, a shroud section, a splitter, and a hub suction flow passage. The shroud section surrounds at least a portion of the hub section and is spaced apart therefrom to define a main flow passageway that has an air inlet. The splitter is disposed downstream of the air inlet and extends into the passageway to divide the main flow passageway into a scavenge flow path and an engine flow path. The hub suction flow passage has a hub suction inlet port and a hub suction outlet port. The hub suction inlet port extends through the hub section and is in fluid communication with the air inlet. The hub suction outlet port extends through the splitter and is in fluid communication with the scavenge flow path.

主权项

1. An inlet particle separator system for a vehicle engine, comprising:
a hub section; a shroud section surrounding at least a portion of the hub section and spaced apart therefrom to define a main flow passageway, the main flow passageway having an air inlet and a cross sectional flow area, wherein the shroud section and the hub section are configured such that the cross sectional flow area of the main flow passageway decreases downstream of the air inlet to define a throat section and then increases downstream of the throat section to define a separation section; a splitter disposed downstream of the throat section and extending into the separation section to divide the main flow passageway, downstream of the throat section, into a scavenge flow path and an engine flow path; and a hub suction flow passage having a hub suction inlet port and a hub suction outlet port, the hub suction inlet port disposed upstream of the throat section and extending through the hub section and in fluid communication with the air inlet, the hub suction outlet port extending through the splitter and in fluid communication with the scavenge flow path.