公开(公告)号：US20200182084A1

公开(公告)日：2020-06-11

申请号：US16792511

申请日：2020-02-17

Applicant: United Technologies Corporation

Inventor： Michael J. Birnkrant

IPC: F01D25/04 ,  F16F15/08 ,  F02C3/04 ,  F16F1/37 ,  F02C7/24 ,  F01D25/06 ,  F01D5/26 ,  F01D5/16

Abstract: A machine includes a section that defines a target vibrational mode to dampen and a nanocellular foam damper that includes interconnected ligaments in a cellular structure. The interconnected ligaments have an average ligament size defined with respect to a vibrational loss modulus of the nanocellular foam damper and the target vibrational mode. Also disclosed is a method of damping vibration.

公开(公告)号：US10478894B2

公开(公告)日：2019-11-19

申请号：US15232149

申请日：2016-08-09

Applicant: United Technologies Corporation

Inventor： Jose L. Santana ,  Weina Li ,  Michael J. Birnkrant

IPC: B22F3/11 ,  B22F3/10 ,  B22F5/04 ,  B22F3/00 ,  B01J32/00 ,  B01J37/02 ,  B01J37/03 ,  B01J37/08 ,  B01J23/755 ,  B01J35/06 ,  B01D39/20

Abstract: A method of fabricating an article includes providing an arrangement of loose nanowires and bonding the loose nanowires in the presence of carbon together into a unitary cellular structure.

公开(公告)号：US10071425B2

公开(公告)日：2018-09-11

申请号：US15037573

申请日：2014-08-13

Applicant: United Technologies Corporation

Inventor： Michael J. Birnkrant

IPC: B22F3/11 ,  B22F5/00 ,  C22C1/08 ,  B22F9/22 ,  B82Y30/00 ,  B82Y40/00

CPC classification number: B22F3/1143 ,  B22F1/0018 ,  B22F3/1125 ,  B22F5/009 ,  B22F9/22 ,  B22F9/24 ,  B22F2201/013 ,  B22F2201/10 ,  B22F2301/15 ,  B22F2302/25 ,  B22F2998/10 ,  B22F2999/00 ,  B82Y30/00 ,  B82Y40/00 ,  C22C1/08 ,  F05D2220/323 ,  F05D2230/20 ,  F05D2300/16 ,  F05D2300/612 ,  B22F2202/03

Abstract: A method for fabricating a metal foam component from an aerogel containing a polymer and nanoparticles is disclosed. The method may comprise: 1) exposing the aerogel to a reducing condition at an elevated temperature for a reaction time to provide a metal foam; and 2) using the metal foam to fabricate the metal foam component. At least one of the elevated temperature and the reaction time may be selected so that at least some ligaments of the metal foam have a desired ligament diameter or at least some pores of the metal foam have a desired pore size. The desired ligament diameter may be less than about one micron and the component may be a component of a gas turbine engine.

公开(公告)号：US09845731B2

公开(公告)日：2017-12-19

申请号：US14749438

申请日：2015-06-24

Applicant: United Technologies Corporation

Inventor： Michael J. Birnkrant ,  Carey Clum

IPC: G05D23/02 ,  F02C7/18 ,  F01D25/12 ,  F01D5/18 ,  F02C7/20 ,  F01D9/04 ,  F01D11/08 ,  F02C7/25 ,  F01D11/14 ,  F01D11/24 ,  F23R3/00 ,  F23R3/06 ,  F23R3/26

CPC classification number: F02C7/20 ,  F01D5/182 ,  F01D5/186 ,  F01D9/041 ,  F01D11/08 ,  F01D11/14 ,  F01D11/24 ,  F01D25/12 ,  F02C7/18 ,  F02C7/25 ,  F05D2220/32 ,  F05D2240/12 ,  F05D2240/30 ,  F05D2240/35 ,  F05D2240/55 ,  F05D2260/202 ,  F05D2300/134 ,  F05D2300/16 ,  F05D2300/5021 ,  F05D2300/50212 ,  F23R3/002 ,  F23R3/06 ,  F23R3/26 ,  F23R2900/03042 ,  G05D23/02 ,  G05D23/021 ,  G05D23/022

Abstract: Systems and methods are disclosed herein for passively managing cooling air in a gas turbine engine. A cooling air supply line may supply cooling air to a component in the gas turbine engine. A metering coupon may have a negative coefficient of thermal expansion. The metering coupon may allow more airflow through the metering coupon and through the component in response to an increase in temperature.