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1. 发明授权

US09533485B2 Compressor variable vane assembly 有权
标题翻译：压缩机可变叶片总成
公开(公告)号：US09533485B2
公开(公告)日：2017-01-03
申请号：US14228616
申请日：2014-03-28
申请人： Pratt & Whitney Canada Corp.
发明人： Andrew R. Marshall , David Menheere
IPC分类号： F04D29/56 , B33Y10/00 , F01D5/14 , F01D17/16 , F04D29/02 , F04D29/16 , B33Y80/00 , F01D11/12
CPC分类号： F04D29/563 , B22F3/1055 , B22F5/009 , B23K15/0086 , B23K2101/001 , B33Y10/00 , B33Y80/00 , F01D5/143 , F01D11/12 , F01D17/162 , F04D29/023 , F04D29/164 , F04D29/542 , F05D2230/31 , F05D2300/514 , F05D2300/603 , F05D2300/608 , F05D2300/613 , Y10T29/49245
摘要： A variable vane assembly for a gas turbine engine compressor and method of manufacturing same is described. A plurality of projections the inner and/or outer shroud which protruded into the annular gas path such as to ensure that a radial clearance gap, defined between the projections and a vane airfoil overhang portion, remains substantially constant throughout a substantial portion of the vane pivot arc of the variable vane. The method includes forming one cavities within the shroud, the cavities isolated from the annular gas path and disposed radially beneath at least each of the projections, and providing one or more structural reinforcing elements within the cavities.
摘要翻译：描述了一种用于燃气涡轮发动机压缩机的可变叶片组件及其制造方法。多个凸起，其突出到环形气体路径中的内部和/或外部护罩，以确保限定在突出部和叶片翼型件伸出部分之间的径向间隙保持在叶片枢轴的大部分内基本上恒定可变叶片弧。该方法包括在护罩内形成一个空腔，空腔与环形气体路径隔离并且设置在至少每个突起的径向下方，并在空腔内提供一个或多个结构增强元件。

2. 发明授权

US10060444B2 Compressor variable vane assembly 有权
公开(公告)号：US10060444B2
公开(公告)日：2018-08-28
申请号：US15361877
申请日：2016-11-28
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Andrew R. Marshall , David Menheere
IPC分类号： F04D29/56 , F04D29/54 , F04D29/16 , F01D17/16 , F01D5/14 , B33Y10/00 , F04D29/02 , B33Y80/00 , B22F3/105 , B22F5/00 , B23K15/00 , F01D11/12 , B23K101/00
CPC分类号： F04D29/563 , B22F3/1055 , B22F5/009 , B23K15/0086 , B23K2101/001 , B33Y10/00 , B33Y80/00 , F01D5/143 , F01D11/12 , F01D17/162 , F04D29/023 , F04D29/164 , F04D29/542 , F05D2230/31 , F05D2300/514 , F05D2300/603 , F05D2300/608 , F05D2300/613 , Y10T29/49245
摘要： A variable vane assembly for a gas turbine engine compressor and method of manufacturing same is described. A plurality of projections on the inner and/or outer shroud protrude into the annular gas path, each projection being at least partially circumferentially disposed between two variable vanes and located adjacent the overhang portion thereof. The projections have an angled planar surface that is substantially parallel to a plane defined by a terminal edge of the overhang portion of the variable vanes when pivoted through a vane pivot arc.

3. 发明授权

US09638212B2 Compressor variable vane assembly 有权
公开(公告)号：US09638212B2
公开(公告)日：2017-05-02
申请号：US14133873
申请日：2013-12-19
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Andrew R. Marshall
IPC分类号： F01D5/14 , F01D9/04 , F01D17/16 , F04D29/54 , F04D29/56 , F04D29/68
CPC分类号： F04D29/544 , F01D5/143 , F01D9/04 , F01D17/162 , F04D29/545 , F04D29/563 , F04D29/681 , F05D2240/122 , F05D2250/61
摘要： A variable vane assembly for a gas turbine engine compressor with a plurality of pivoting variable vanes extending between inner and outer shrouds and having an overhang portion that protrudes from a button at opposed ends of the vane. A plurality of projections, disposed on at least one of the inner and outer shrouds, protrude into the gas path relative to a nominal gas path boundary of the shrouds. The projections are disposed adjacent the overhang portion and have an angled planar surface that is substantially parallel to a plane swept by a terminal edge of the overhang portion when the variable vane is rotated through its vane pivot arc, so that a radial clearance gap between the shroud and the overhang portion remains substantially constant through a substantial portion of the vane pivot arc.

4. 发明申请

US20150176418A1 COMPRESSOR VARIABLE VANE ASSEMBLY 有权
标题翻译：压缩机可变风扇组件
公开(公告)号：US20150176418A1
公开(公告)日：2015-06-25
申请号：US14133873
申请日：2013-12-19
申请人： Pratt & Whitney Canada Corp.
发明人： Andrew R. Marshall
IPC分类号： F01D9/02
CPC分类号： F04D29/544 , F01D5/143 , F01D9/04 , F01D17/162 , F04D29/545 , F04D29/563 , F04D29/681 , F05D2240/122 , F05D2250/61
摘要： A variable vane assembly for a gas turbine engine compressor with a plurality of pivoting variable vanes extending between inner and outer shrouds and having an overhang portion that protrudes from a button at opposed ends of the vane. A plurality of projections, disposed on at least one of the inner and outer shrouds, protrude into the gas path relative to a nominal gas path boundary of the shrouds. The projections are disposed adjacent the overhang portion and have an angled planar surface that is substantially parallel to a plane swept by a terminal edge of the overhang portion when the variable vane is rotated through its vane pivot arc, so that a radial clearance gap between the shroud and the overhang portion remains substantially constant through a substantial portion of the vane pivot arc.
摘要翻译：一种用于燃气涡轮发动机压缩机的可变叶片组件，其具有在内护罩和外护罩之间延伸的多个枢转可变叶片，并且具有从叶片的相对端处的按钮突出的突出部分。设置在内护罩和外护罩中的至少一个上的多个突起相对于护罩的标称气体路径边界突出到气体路径中。这些突起设置成邻近突出部分并且具有成角度的平坦表面，该平坦表面基本上平行于当可变叶片通过其叶片枢转弧线旋转时由突出部分的终端边缘扫掠的平面，使得在护罩和悬伸部分通过叶片枢转弧的大部分保持基本恒定。

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