Patent application number | Description | Published |
20110219781 | GAS TURBINE ENGINE WITH TIE SHAFT FOR AXIAL HIGH PRESSURE COMPRESSOR ROTOR - A compressor section to be mounted in a gas turbine engine has a plurality of axial compressor rotors arranged from an upstream location toward a downstream location. A tie shaft applies an axial force at one end of the compressor section and biases the compressor rotors against a hub at the opposite end. The downstream compressor is an axial compressor rotor. A gas turbine engine incorporating this structure is also claimed. | 09-15-2011 |
20110219784 | COMPRESSOR SECTION WITH TIE SHAFT COUPLING AND CANTILEVER MOUNTED VANES - A compressor section to be mounted in a gas turbine engine has a plurality of compressor rotors arranged from an upstream location toward a downstream location. A tie shaft applies an axial force at one end of the compressor section to a downstream one of the compressor rotors, and biases the compressor rotors against a hub at the opposite end. Vane sections are mounted intermediate the compressor rotors. The vane sections include at least some variable vanes driven by actuators mounted at a radially outer position and at least some of the fixed vanes are cantilever mounted , such that they are spaced from a compressor rotor, but unsecured at a radially inner end. | 09-15-2011 |
20130195660 | COMPRESSOR DISK BLEED AIR SCALLOPS - A rotor disk for a gas turbine engine includes a hub; a rim with a forward portion and an aft portion; and a plurality of circumferentially spaced radial scallops in the rim to form cooling slots between two disks when the rotor disk is connected to another rotor disk. | 08-01-2013 |
20130322985 | RETENTION ASSEMBLY INCLUDING SLEEVE - An assembly includes a first part, a second part, a sleeve, and a fastener. The first part has a first hole with a threaded portion therein. Additionally, the first hole has a first counterbore. The second part has a second hole with a second counterbore. The second counterbore is arranged to oppose the first counterbore. The sleeve is inserted into the second counterbore and extends to insert into the first counterbore. The fastener has a threaded end portion and a reduced diameter portion and extends through the first hole and into the second hole. The reduced diameter portion of the fastener is surrounded by the sleeve when the fastener is inserted to mount the first part with the second part. | 12-05-2013 |
20140090397 | BLEED TUBE ATTACHMENT - An anti-vortex assembly for a gas turbine engine includes a support ring including a seat surrounding an opening and a bleed tube including a base with a bearing face sealing against the seat. A retaining ring is mounted within the support ring and engages the base of the bleed air tube to hold the bleed tube within the support ring. | 04-03-2014 |
20160032759 | MACHINED VANE ARM OF A VARIABLE VANE ACTUATION SYSTEM - An exemplary variable vane actuation system includes, among other things, a vane arm with a vane stem contact surface and a radially outward facing surface. The vane stem contact surface is to contact a vane stem of a variable vane and thereby actuate the variable vane about a radially extending axis. The vane stem contact surface is angled relative to both the radially extending axis and the radially outward facing surface. | 02-04-2016 |