公开(公告)号：US20190112973A1

公开(公告)日：2019-04-18

申请号：US16164148

申请日：2018-10-18

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Sylvain LAMARRE ,  Mike FONTAINE ,  Andre JULIEN ,  Michael GAUL ,  Jean THOMASSIN ,  Lazar MITROVIC ,  Ilya MEDVEDEV ,  Sergey USIKOV ,  Andrey ZOLOTOV

IPC: F02B41/00 ,  F02C6/20 ,  F02C7/052 ,  F02C7/36 ,  F01C21/18 ,  F01C11/00 ,  F02C6/12

Abstract: A compound engine assembly with an inlet duct, a compressor, an engine core including at least one internal combustion engine, and a turbine section including a turbine shaft configured to compound power with the engine shaft. The turbine section may include a first stage turbine and a second stage turbine. The turbine shaft and the engine shaft are parallel to each other. The turbine shaft, the engine shaft and at least part of the inlet duct are all radially offset from one another. A method of driving a rotatable load of an aircraft is also discussed.

公开(公告)号：US20140290265A1

公开(公告)日：2014-10-02

申请号：US13754304

申请日：2013-01-30

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Richard ULLYOTT ,  Keith MORGAN ,  Jean DUBREUIL ,  Lazar MITROVIC ,  Kevin A. DOOLEY ,  Stephen KENNY ,  Ilya MEDVEDEV ,  Johnny VINSKI

IPC: F02C7/36

CPC classification number: F02C7/36 ,  F02C3/113 ,  F05D2220/324 ,  F05D2220/327

Abstract: A multi spool gas turbine engine with a differential having a selectively rotatable member which rotational speed determines a variable ratio between rotational speeds of driven and driving members of the differential. The driven member is engaged to the first spool and a rotatable shaft independent of the other spools (e.g. connected to a compressor rotor) is engaged to the driving member. First and second power transfer devices are engaged to the first spool and the selectively rotatable member, respectively. A circuit interconnects the power transfer devices and allows a power transfer therebetween, and a control unit controls the power being transferred between the power transfer devices. Power can thus be transferred between the first spool and the selectively rotatable member to change the speed ratio between the first spool and the rotatable shaft.

Abstract translation: 具有差速器的多线轴燃气涡轮发动机具有可选择性地旋转的构件，其转速确定差速器的驱动和驱动构件的转速之间的可变比。 被驱动构件接合到第一卷轴，并且与其它卷轴（例如，连接到压缩机转子）无关的可旋转轴接合到驱动构件。 第一和第二动力传递装置分别接合到第一卷轴和可选择性旋转的构件。 电路将功率传输装置互连并允许它们之间的电力传输，并且控制单元控制在功率传输装置之间传输的功率。 因此能够在第一卷轴和可选择性地旋转的构件之间传递动力，以改变第一卷轴和可旋转轴之间的速比。

公开(公告)号：US20190010875A1

公开(公告)日：2019-01-10

申请号：US16123344

申请日：2018-09-06

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Richard ULLYOTT ,  Keith MORGAN ,  Jean DUBREUIL ,  Lazar MILTROVIC ,  Kevin A. DOOLEY ,  Stephen KENNY ,  Ilya MEDVEDEV ,  Johnny VINSKI

IPC: F02C7/36 ,  F02C3/113

Abstract: A multi spool gas turbine engine with a differential having a selectively rotatable member which rotational speed determines a variable ratio between rotational speeds of driven and driving members of the differential. The driven member is engaged to the first spool and a rotatable shaft independent of the other spools (e.g. connected to a compressor rotor) is engaged to the driving member. First and second power transfer devices are engaged to the first spool and the selectively rotatable member, respectively. A circuit interconnects the power transfer devices and allows a power transfer therebetween, and a control unit controls the power being transferred between the power transfer devices. Power can thus be transferred between the first spool and the selectively rotatable member to change the speed ratio between the first spool and the rotatable shaft.