公开(公告)号：US09957824B2

公开(公告)日：2018-05-01

申请号：US14776473

申请日：2014-03-14

Applicant: United Technologies Corporation

Inventor： Carl Brian Klinetob ,  Stephen J. Lindahl ,  Myron L. Klein ,  Andrew Pope ,  William Richard Ganoe, Jr. ,  Thomas D. Kasprow ,  Douglas J. Morgan

IPC: F01D5/16 ,  F01D9/04 ,  F01D5/26 ,  F01D25/06

CPC classification number: F01D9/041 ,  F01D5/16 ,  F01D5/26 ,  F01D25/06 ,  F05D2230/60 ,  F05D2240/12 ,  F05D2240/123 ,  F05D2240/124 ,  F05D2260/96 ,  F05D2300/121 ,  F05D2300/171

Abstract: A stationary guide vane includes a top platform, a bottom platform, and a vane body located between the top platform and the bottom platform. The vane body includes one or more cavities formed on a side wall of the vane body. One or more of the cavities are filled with vibration damping material and a vane cover is bonded to the vane body over the one or more containers.

公开(公告)号：US20180038382A1

公开(公告)日：2018-02-08

申请号：US15231058

申请日：2016-08-08

Applicant: United Technologies Corporation

Inventor： Larry Foster ,  Myron L. Klein

IPC: F04D29/32 ,  F02K3/06 ,  F02C3/04 ,  F04D29/38 ,  F04D29/02

CPC classification number: F04D29/327 ,  F01D5/10 ,  F01D5/16 ,  F01D5/282 ,  F01D25/04 ,  F02C3/04 ,  F02K3/06 ,  F04D29/023 ,  F04D29/388 ,  F04D29/666 ,  F05D2220/36 ,  F05D2230/60 ,  F05D2240/35 ,  F05D2260/961 ,  F05D2300/603 ,  F05D2300/6034 ,  Y02T50/673

Abstract: A gas turbine engine includes a fan mounting a first group of blades and a second group of blades. The first group of blades and the second group of blades share a profile shape. The first group of blades have a first laminate composition, and the second group of blades have a second laminate composition, distinct from the first laminate composition. A frequency of a vibratory mode of the first group of blades is offset from a frequency of a vibratory mode of the second group of blades.

公开(公告)号：US10781827B1

公开(公告)日：2020-09-22

申请号：US15872171

申请日：2018-01-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Jason Elliott ,  Daniel C. Falk ,  Myron L. Klein ,  Ethan C. Drew ,  James H. Moffitt ,  Darryl Whitlow ,  Byron R. Monzon ,  Jay Thomas Abraham ,  William R. Graves

IPC: F04D29/32 ,  F04D29/38 ,  F02C3/04 ,  F02K3/06 ,  F04D29/66 ,  F01D5/16

Abstract: A turbomachine airfoil element includes an airfoil that has pressure and suction sides spaced apart from one another in a thickness direction and joined to one another at leading and trailing edges. The airfoil extends in a radial direction a span that is in a range of 27.5-28.5 inches (699-724 mm). A chord length extends in a chordwise direction from the leading edge to the trailing edge at 50% span and is in a range of 13.0-14.0 inches (330-356 mm). The airfoil element includes at least two of a first mode with a frequency of 34±10% Hz, a second mode with a frequency of 90±10% Hz, a third mode with a frequency of 178±10% Hz, a fourth mode with a frequency of 222±10% Hz, a fifth mode with a frequency of 307±10% Hz and a sixth mode with a frequency of 389±10% Hz.

公开(公告)号：US10711623B1

公开(公告)日：2020-07-14

申请号：US15872196

申请日：2018-01-16

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Jason Elliott ,  Daniel C. Falk ,  Myron L. Klein

IPC: F01D5/16 ,  F01D5/26 ,  F01D5/28 ,  F01D25/06 ,  F02K3/06

Abstract: In one exemplary embodiment, a turbofan engine comprises a fan section. A core section includes a turbine section arranged fluidly downstream from the compressor section. A combustor is arranged fluidly between the compressor and turbine sections. The fan and core sections are configured to produce a thrust in a range 27,000-35,000 pounds-f (120,102-156,688 N). An airfoil is arranged in the fan section. The airfoil has first and second modes each having a frequency. The first mode has the lowest frequency, and the second mode has the second lowest frequency wherein the second mode frequency is 140 Hz or less at a redline engine speed.

公开(公告)号：US20160333710A1

公开(公告)日：2016-11-17

申请号：US14776473

申请日：2014-03-14

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Carl Brian Klinetob ,  Stephen J. Lindahl ,  Myron L. Klein ,  Andrew Pope ,  William Richard Ganoe, JR. ,  Thomas D. Kasprow ,  Douglas J. Morgan

IPC: F01D9/04 ,  F01D25/06

CPC classification number: F01D9/041 ,  F01D5/16 ,  F01D5/26 ,  F01D25/06 ,  F05D2230/60 ,  F05D2240/12 ,  F05D2240/123 ,  F05D2240/124 ,  F05D2260/96 ,  F05D2300/121 ,  F05D2300/171

Abstract: A stationary guide vane includes a top platform, a bottom platform, and a vane body located between the top platform and the bottom platform. The vane body includes one or more cavities formed on a side wall of the vane body. One or more of the cavities are filled with vibration damping material and a vane cover is bonded to the vane body over the one or more containers.

Abstract translation: 固定导叶包括顶部平台，底部平台和位于顶部平台和底部平台之间的叶片体。 叶片体包括形成在叶片体的侧壁上的一个或多个空腔。 一个或多个空腔填充有减震材料，并且叶片盖在一个或多个容器上结合到叶片主体。