Turbine engine with rotor seal retraction mechanism

• Main Authors: WESLING, RICHARD, A, GANIGER RAVINDRA SHANKAR, JALAN, PRATIK, PORTHUN GRANT, YAMARTH, DAVID, HOPPER MARK L, JOHNSON STEVEN DOUGLAS
• Format: Patent
• Language: Chinese; English
• Published: 23.04.2024
• Subjects: BLASTING; ENGINE PLANTS IN GENERAL; HEATING; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; STEAM ENGINES; WEAPONS

A rotary machine, such as a turbine of a gas turbine engine, includes, for example, a rotor and a rotor seal assembly. The rotor is rotatable about an axis of rotation and has a rotor sealing surface. The rotor seal assembly includes a seal body, one or more primary fluid conduits formed in the seal body, and a retraction assembly. The sealing body has a sealing surface and is positionable to form a fluid bearing gap between the sealing surface of the sealing body and the rotor sealing surface. One or more primary fluid conduits are fluidly connected to the fluid bearing gap to supply fluid to the fluid bearing gap. A retraction assembly is connected to the sealing body to move the sealing body in a retraction direction away from the rotor sealing surface. 一种旋转机器，例如燃气涡轮发动机的涡轮机，例如包括转子和转子密封组件。转子能够围绕旋转轴线旋转并且具有转子密封面。转子密封组件包括密封体、形成在密封体中的一个或多个初级流体导管和缩回组件。密封体具有密封面并且能够定位成在密封体的密封面和转子密封面之间形成流体轴承间隙。一个或多个初级流体导管流体连接到流体轴承间隙，以将流体供应至流体轴承间隙。缩回组件连接到密封体，以在远离转子密封面的缩回方向上移动密封体。