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1.发明申请公开(公告)号：US20200298959A1
公开(公告)日：2020-09-24
申请号：US16815942
申请日：2020-03-11
Applicant: GE Avio S.r.l.
Inventor： Simone Castellani , Giuseppe Cervelli
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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2.发明授权公开(公告)号：US12037100B2
公开(公告)日：2024-07-16
申请号：US16815942
申请日：2020-03-11
Applicant: GE Avio S.r.l.
Inventor： Simone Castellani , Giuseppe Cervelli
CPC classification number: B64C11/40 , F01D5/021 , F05D2260/70
Abstract: A variable pitch propeller assembly is operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof are associated. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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Patent Agency Ranking
公开(公告)号：US20240359793A1
公开(公告)日：2024-10-31
申请号：US18525315
申请日：2023-11-30
Applicant: GE AVIO S.R.L
Inventor： Diego Di Leo , Giuseppe Cervelli , Paolo Altamura
IPC: B64C11/38
CPC classification number: B64C11/38
Abstract: Methods, apparatus, systems, and articles of manufacture are disclosed to control propeller pitch in dual acting propellers. An example propeller control system comprising: a piston including a piston rod; a first valve connected to the piston rod via a first piston line and a second piston line, wherein the first valve selectively allows, based on an input signal, hydraulic fluid to transfer to the piston via the first piston line and the second piston line, wherein in the first valve is a three-state valve; and an independent valve connected to the piston rod via a third piston line, wherein the independent valve selectively allows, based on an input signal, hydraulic fluid to transfer to the piston via the third piston line and wherein the independent valve operates independently of the first valve.
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公开(公告)号：US11519346B2
公开(公告)日：2022-12-06
申请号：US16920159
申请日：2020-07-02
Applicant: GE Aviation Czech s.r.o. , GE Avio S.r.l.
Inventor： Giuseppe Cervelli , Simone Castellani , Miriam Manzoni , Giuseppe Bellocchio , Vojtech Jirasek
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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公开(公告)号：US20210079855A1
公开(公告)日：2021-03-18
申请号：US16920159
申请日：2020-07-02
Applicant: GE Aviation Czech s.r.o. , GE Avio S.r.l.
Inventor： Giuseppe Cervelli , Simone Castellani , Miriam Manzoni , Giuseppe Bellocchio , Vojtech Jirasek
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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公开(公告)号：US20240125279A1
公开(公告)日：2024-04-18
申请号：US18393440
申请日：2023-12-21
Applicant: GE Aviation Czech s.r.o , GE Avio S.r.l.
Inventor： Giuseppe Cervelli , Simone Castellani , Miriam Manzoni , Giuseppe Bellocchio , Vojtech Jirasek
CPC classification number: F02D29/02 , B64C11/385 , B64C11/40 , B63H3/10
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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公开(公告)号：US11873771B2
公开(公告)日：2024-01-16
申请号：US18061852
申请日：2022-12-05
Applicant: GE Aviation Czech s.r.o. , GE Avio S.r.l.
Inventor： Giuseppe Cervelli , Simone Castellani , Miriam Manzoni , Giuseppe Bellocchio , Vojtech Jirasek
CPC classification number: F02D29/02 , B64C11/385 , B64C11/40 , B63H3/10 , F02B61/045
Abstract: A variable pitch propeller assembly operatively coupled with an engine and methods for controlling the pitch of a plurality of propeller blades thereof is provided. In one example aspect, the variable pitch propeller assembly includes features for combining overspeed, feathering, and reverse functionality in a single secondary control valve. The secondary control valve is operable to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted to operate the variable pitch propeller assembly in one of a constant speed mode, a feather mode, and a reverse mode.
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