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公开(公告)号：US20190032577A1
公开(公告)日：2019-01-31
申请号：US16019944
申请日：2018-06-27
Applicant: GE Avio S.r.l.
Inventor： Lorenzo CIPOLLA , Giampaolo GABBI , Simone CASTELLANI , Federico DELLAVALLE , Felice FELIPPONE
Abstract: The present disclosure is directed to a system for controlling an output of a gas generator via an operator manipulated input device. The system includes one or more sensors measuring one or more environmental conditions, a gas generator shaft speed, and a power turbine torque. The system further includes an operator manipulated input device and one or more controllers including one or more processors and one or more memory devices. The one or more memory devices stores instructions that when executed by the one or more processors cause the one or more processors to perform operations. The operations include receiving, via an operator manipulated input device, a throttle lever position defining at least an idle position, a takeoff position, and one or more intermediate positions therebetween; receiving, via one or more sensors, one or more environmental conditions, wherein the environmental condition includes one or more of an ambient air temperature, an ambient air pressure, and an ambient airflow rate; determining, via the controller, a first commanded fuel flow of the gas generator based on a gas generator speed output curve based at least on the throttle lever position, the one or more environmental conditions, and a coefficient reference table; determining, via the controller, a second commanded fuel flow of the gas generator based on a power turbine torque output curve based at least on the one or more environmental conditions; and generating, via the gas generator, a gas generator output based on the first commanded fuel flow or the second commanded fuel flow.
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公开(公告)号：US20170307063A1
公开(公告)日：2017-10-26
申请号：US15492046
申请日：2017-04-20
Applicant: GE Avio S.r.l.
Inventor： Michele GRAVINA , Federico DELLAVALLE
Abstract: An oil transfer unit has a rotating part extending along an axis, a stationary part provided with an oil mouth, and a floating part having a cylindrical surface fitted onto an outer cylindrical surface of the rotating part in a non-contact configuration; an annular groove is provided between the floating part and the rotating part to put the oil mouth into communication with an inner chamber of the rotating part; both sides of the groove are sealed by a hydrostatic seal defined by a radial gap between the cylindrical surfaces; the unit has at least one oil transfer tube, coupled to the stationary part and the floating part in a fluid-tight manner and with freedom of movement, and a connecting rod to prevent rotation of the floating part; the opposite ends of the connecting rod are coupled to the stationary part and floating part by respective spherical joints.
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公开(公告)号：US20140182252A1
公开(公告)日：2014-07-03
申请号：US14143837
申请日：2013-12-30
Applicant: GE AVIO S.r.l.
Inventor： Stefano ZECCHI , Federico DELLAVALLE , Daniele COUTANDIN
IPC: B01D46/00
CPC classification number: B01D46/0056 , B01D39/10 , B01D46/26 , B01D2239/10
Abstract: A filtering net, in particular for a rotary separator, has a plurality of cells, which are substantially equal to one another and are defined by the replication of a base cell along two transversal directions of replication; the base cell comprises at least one intermediate filament and a first and a second end filament, arranged on opposite sides of the intermediate filament; the intermediate filament and the end filaments extend along respective longitudinal axes which are parallel; cross-sectioning the base cell with any plane orthogonal to the longitudinal axes of the filaments and joining, on said plane, the trace of each longitudinal axis with the trace of the adjacent longitudinal axis by a respective straight line, the two straight lines are incident at the trace of the longitudinal axis of the intermediate filament and form an incidence angle of between approximately 90° and 160°.
Abstract translation: 特别是用于旋转分离器的过滤网具有多个细胞，其彼此基本相等，并且通过沿着两个横向复制方向复制基质细胞而定义; 所述基座包括布置在所述中间丝的相对侧上的至少一个中间丝和第一和第二末端丝; 中间丝和末端长丝沿着平行的相应纵轴延伸; 用与灯丝的纵向轴线垂直的任何平面对基座进行横截面，并且在所述平面上，通过相应的直线将每个纵向轴线的轨迹与相邻纵向轴线的迹线相接合，两条直线是入射的 在中间丝的纵轴的迹线处，并形成大约90°至160°之间的入射角。
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公开(公告)号：US20170307061A1
公开(公告)日：2017-10-26
申请号：US15492040
申请日：2017-04-20
Applicant: GE Avio S.r.l.
Inventor： Michele GRAVINA , Federico DELLAVALLE , Elio PERONA
CPC classification number: F16H57/0424 , F01D15/12 , F01D25/18 , F02C7/06 , F02C7/36 , F05D2260/40311 , F16H1/28 , F16H57/0427 , F16H57/043 , F16H57/0479 , F16H57/0482 , F16H57/0486 , F16H57/082
Abstract: An oil transfer unit has a rotating part, a stationary part provided with an oil mouth, and a floating part having a support body coupled to the stationary part; the floating part has an annular pad, that is distinct from the body and is provided with a cylindrical surface fitted onto an outer cylindrical surface of the rotating part in a non-contact configuration, with an annular groove provided between the pad and the rotating part to put the oil mouth into communication with an inner chamber of the rotating part; both sides of the groove are sealed by a hydrostatic seal between the cylindrical surfaces; an angular retaining constraint is provided to retain angularly the pad with respect to the body; at least one element is breakable or plastically deformable to release the angular constraint when the torque transferred to the body, in use, exceeds a defined threshold.
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