Hydrostatic seal of a gas turbine engine and corresponding gas turbine engine

摘要

Gas turbine engine systems involving hydrostatic face seals (22) with anti-fouling provisioning are disclosed. In this regard, a representative turbine assembly for a gas turbine engine comprises: a turbine (120) having a hydrostatic seal (10); the hydrostatic seal (10) having a seal face (24), a seal runner (26), a carrier (20), and a biasing member (30); the seal face (24) and the seal runner (26) defining a high-pressure side and a lower-pressure side of the seal; the carrier (20) being operative to position the seal face (24) relative to the seal runner (26); and the biasing member (30) being located on the lower-pressure side of the seal and being operative to bias the carrier (20) such that interaction of the biasing member (30) and gas pressure across the seal causes the carrier (20) to position the seal face (24) relative to the seal runner (26).