公开(公告)号：DE69830891T2

公开(公告)日：2006-05-24

申请号：DE69830891

申请日：1998-12-24

Applicant: UNITED TECHNOLOGIES CORP

Inventor： HILBERT GARY R ,  PEARSON DAVID D

IPC: F01D25/04 ,  F16F15/00 ,  F01D5/16 ,  F01D5/26 ,  F16F7/00 ,  F16F15/02

Abstract: A method and apparatus reduces the magnitude of vibratory strain in a turbomachine component that experiences high steady state strain by, in the case of a passive embodiment, coupling a mechanical-to-electromagnetic energy converter to an interior and/or exterior surface of the component, and/or embedding the energy converter within the component, and by, in the case of an active embodiment, coupling a mechanical-to-electromagnetic energy converter to an interior and/or exterior surface of the component.

公开(公告)号：DE60112150T2

公开(公告)日：2006-03-30

申请号：DE60112150

申请日：2001-03-02

Applicant: UNITED TECHNOLOGIES CORP

Inventor： REY NANCY M ,  MILLER ROBIN MIHEKUN ,  TILLMAN THOMAS G ,  RUKUS ROBERT M ,  KETTLE JOHN L ,  DUNPHY JAMES R ,  CHAUDHRY ZAFFIR A ,  PEARSON DAVID D ,  DREITLEIN KENNETH C ,  LOFFREDO CONSTANTINO V ,  WYNOSKY THOMAS A

IPC: F02K1/06 ,  F02K1/12 ,  F02K3/06 ,  F02K3/075 ,  F03G7/06 ,  F04D29/56

Abstract: A gas turbine engine (10) includes a variable area nozzle (30) having a plurality of flaps (38). The flaps (38) are actuated by a plurality of actuating mechanisms (40) driven by shape memory alloy (SMA) actuators (68) to vary fan exist nozzle area (36). The SMA actuator (68) has a deformed shape in its martensitic state and a parent shape in its austenitic state. The SMA actuator (68) is heated to transform from martensitic state to austenitic state generating a force output to actuate the flaps (38). The variable area nozzle (30) also includes a plurality of return mechanisms (42) deforming the SMA actuator (68) when the SMA actuator (68) is in its martensitic state.

公开(公告)号：CA1184097A

公开(公告)日：1985-03-19

申请号：CA386155

申请日：1981-09-17

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

IPC: C22F1/10

Abstract: An alloy composition casting scheme and specific heat treatment process are described for the production of directionally solidified single crystal articles which have exceptional properties. The alloy is based on the Ni-Al-Mo system, preferably with additions of Ta. The process for producing the article inclused directional solidification at a high rate to produce a fine dendritic microstructure. A combined homogenizing and solution treatment is performed to provide a unique chemically homogeneous single phase microstructure. This homogeneous article is rapidly quenched and then aged at an intermediate temperature to develop a controlled uniform distribution of fine gamma prime phase particles.

公开(公告)号：BR8108726A

公开(公告)日：1982-06-22

申请号：BR8108726

申请日：1981-08-19

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

IPC: C30B1/02 ,  C22C1/02 ,  C22C19/00 ,  C22C19/03 ,  C22F20060101 ,  C22F1/10 ,  C30B11/00 ,  C30B21/02 ,  C30B29/52 ,  C30B21/00

Abstract: A high strength nickel base superalloy having a novel microstructure is described. The article consists of a gamma matrix containing a oriented gamma prime second phase having a plate or rod form. This noncuboidal gamma prime phase is produced by aging solution treated material under an applied stress. When this process is applied to a certain class of superalloys which are rich in refractory elements, the resultant structure provides exceptional resistance to creep at elevated temperatures.

公开(公告)号：NO821175A

公开(公告)日：1982-04-07

申请号：NO821175

申请日：1982-04-07

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

IPC: C22F20060101 ,  C22F1/10 ,  C22F

公开(公告)号：EP0057696A4

公开(公告)日：1982-12-09

申请号：EP81902224

申请日：1981-08-10

Applicant: UNITED TECHNOLOGIES CORP

Inventor： PEARSON DAVID D ,  LEMKEY FRANK D ,  KEAR BERNARD H

IPC: C30B1/02 ,  C22C1/02 ,  C22C19/00 ,  C22C19/03 ,  C22F20060101 ,  C22F1/10 ,  C30B11/00 ,  C30B21/02 ,  C30B29/52

CPC classification number: C22F1/10 ,  C22C19/007 ,  C30B11/00 ,  C30B29/52

Abstract: An alloy composition coasting scheme and specific heat treatment process are described for the production of directionally solidified single crystal articles which have exceptional properties. The alloy is based on the Ni-Al-Mo system, preferably with additions of Ta. The process for producing the article inclused directional solidification at a high rate to produce a fine dendritic microstructure. A combined homogenizing and solution treatment is performed to provide a unique chemically homogeneous single phase microstructure. This homogeneous article is rapidly quenched and then aged at an intermediate temperature to develop a controlled uniform distribution of fine gamma prime phase particles.

Abstract translation: 描述了用于生产具有特殊性能的定向凝固单晶制品的合金组成铸造方案和特定热处理方法。 该合金基于Ni-Al-Mo系统，优选添加Ta。 制造该制品的方法包括高速定向凝固以产生精细的树枝状微结构。 进行组合的均化和溶液处理以提供独特的化学均匀的单相微观结构。 这种均匀的制品被迅速淬火，然后在中间温度下老化，以形成精细γ相颗粒的受控均匀分布。