公开(公告)号：US09476320B2

公开(公告)日：2016-10-25

申请号：US14033652

申请日：2013-09-23

Applicant: United Technologies Corporation

Inventor： Gregory M. Savela

IPC: F02C7/06 ,  F01D25/16 ,  F02C7/20 ,  F02K3/06

CPC classification number: F02C7/06 ,  F01D25/162 ,  F01D25/164 ,  F02C3/10 ,  F02C7/20 ,  F02K3/06 ,  F05D2240/50 ,  F05D2260/96 ,  Y02T50/671

Abstract: An example gas turbine engine includes a turbine and first and second spools coaxial with one another. The first spool is arranged within the second spool and extends between forward and aft ends. The aft end extends axially beyond the second spool and supports the turbine. A housing is arranged downstream from the turbine. First and second bearings are mounted to the aft end of the first spool and supported by the housing portion.

Abstract translation: 示例性燃气涡轮发动机包括涡轮机以及彼此同轴的第一和第二线轴。 第一卷轴布置在第二卷轴内并且在前端和后端之间延伸。 后端轴向延伸超过第二线轴并支撑涡轮机。 外壳设置在涡轮下游。 第一和第二轴承安装到第一线轴的后端并由壳体部分支撑。

公开(公告)号：US10233778B2

公开(公告)日：2019-03-19

申请号：US15173065

申请日：2016-06-03

Applicant: United Technologies Corporation

Inventor： Daniel L. Gysling ,  Gregory M. Savela ,  John M. Feiereisen ,  Robert J. Morris

IPC: F02C7/06 ,  F01D25/16 ,  F16C19/06 ,  F16C27/04

Abstract: A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.

公开(公告)号：US10094420B1

公开(公告)日：2018-10-09

申请号：US15470252

申请日：2017-03-27

Applicant: United Technologies Corporation

Inventor： David B. Hudson ,  Gregory M. Savela ,  Robert J. Morris ,  Christopher J. Zuck ,  Daniel L. Gysling ,  Alan J. Goetschius

IPC: F16C27/00 ,  F16C27/04

Abstract: A squeeze film damper includes a static member and a whirling member positioned adjacent to the static member. A gap is formed between the static member and the whirling member. A pressurized oil reservoir is formed in the gap between the static member and the whirling member. A first low pressure oil reservoir is formed in a first cavity in the whirling member, wherein the first low pressure oil reservoir is positioned on a first end of the pressurized oil reservoir. A second low pressure oil reservoir is formed in a second cavity in the whirling member, wherein the second low pressure oil reservoir is positioned on a second end of the pressurized oil reservoir. A first primary seal is positioned between the first end of the pressurized oil reservoir and the first low pressure oil reservoir, and a second primary seal is positioned between the second end of the pressurized oil reservoir and the second low pressure oil reservoir.

公开(公告)号：US20170234158A1

公开(公告)日：2017-08-17

申请号：US15042346

申请日：2016-02-12

Applicant: United Technologies Corporation

Inventor： Gregory M. Savela

IPC: F01D25/16 ,  F01D25/18 ,  F02K3/06 ,  F01D15/12 ,  F01D19/02 ,  F01D5/02

CPC classification number: F01D25/164 ,  F01D5/027 ,  F01D15/12 ,  F01D19/00 ,  F01D19/02 ,  F01D25/18 ,  F02K3/06 ,  F05D2220/32 ,  F05D2240/53 ,  F05D2240/60 ,  F05D2260/98 ,  F05D2270/02 ,  F05D2270/114 ,  F05D2270/304 ,  F16C27/045 ,  F16C2360/23 ,  F16F15/0237

Abstract: A method of bowed rotor start response damping for a gas turbine engine is provided. A spring rate and a damping characteristic of one or more bearing supports in the gas turbine engine are selectively modified while a shaft of the gas turbine engine rotates below a speed which is adversely affected by a bowed rotor condition of the gas turbine engine.