-
公开(公告)号：US20220169366A1
公开(公告)日：2022-06-02
申请号：US17106580
申请日：2020-11-30
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong
Abstract: In an embodiment, an aircraft includes an airframe and a first propulsion assembly coupled to the airframe. The first propulsion assembly includes a first rotor hub and a first plurality of rotor blades non-uniformly spaced about the first rotor hub and operable to rotate in a rotor plane with the first rotor hub. The aircraft also includes a second propulsion assembly coupled to the airframe. The second propulsion assembly includes a second rotor hub and a second plurality of rotor blades non-uniformly spaced about the second rotor hub and operable to rotate in a rotor plane with the second rotor hub.
-
公开(公告)号：US20220177121A1
公开(公告)日：2022-06-09
申请号：US17116726
申请日：2020-12-09
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong , Karl Schroeder , Michael John Ryan
Abstract: An exemplary ducted fan includes a duct having a central longitudinal axis, a rotor hub and stator hub extending along the central longitudinal axis, rotor blades extending from the rotor hub, each of the rotor blades operable to rotate about its own pitch-change axis, the pitch-change axes lying in a rotor plane that is generally perpendicular to the central longitudinal axis, each of the rotor blades having a rotor trailing edge and a rotor chord length, stators extending from the stator hub to an interior surface of the duct, each of the stators having a stator leading edge and a stator thickness, and a first separation between the rotor plane and the stator leading edge of not less than approximately 1.5 times the stator thickness.
-
Patent Agency Ranking
公开(公告)号：US20220111952A1
公开(公告)日：2022-04-14
申请号：US17067723
申请日：2020-10-11
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong
Abstract: A rotor system has a mast axis, a first rotor rotatable about the mast axis in a first direction and the first rotor has a first number of first rotor blades, and a second rotor rotatable about the mast axis in a second direction and the second rotor has a second number of second rotor blades that is different than the first number. The second direction is opposite the first direction.
-
公开(公告)号：US11745855B2
公开(公告)日：2023-09-05
申请号：US17106580
申请日：2020-11-30
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong
CPC classification number: B64C11/46 , B64C29/0025 , B64C39/024 , B64U50/13 , B64U70/80
Abstract: In an embodiment, an aircraft includes an airframe and a first propulsion assembly coupled to the airframe. The first propulsion assembly includes a first rotor hub and a first plurality of rotor blades non-uniformly spaced about the first rotor hub and operable to rotate in a rotor plane with the first rotor hub. The aircraft also includes a second propulsion assembly coupled to the airframe. The second propulsion assembly includes a second rotor hub and a second plurality of rotor blades non-uniformly spaced about the second rotor hub and operable to rotate in a rotor plane with the second rotor hub.
-
公开(公告)号：US11827344B2
公开(公告)日：2023-11-28
申请号：US17116726
申请日：2020-12-09
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong , Karl Schroeder , Michael John Ryan
CPC classification number: B64C27/20 , B64C39/024 , B64D2033/0206 , B64U10/13 , B64U30/20 , B64U50/14
Abstract: An exemplary ducted fan includes a duct having a central longitudinal axis, a rotor hub and stator hub extending along the central longitudinal axis, rotor blades extending from the rotor hub, each of the rotor blades operable to rotate about its own pitch-change axis, the pitch-change axes lying in a rotor plane that is generally perpendicular to the central longitudinal axis, each of the rotor blades having a rotor trailing edge and a rotor chord length, stators extending from the stator hub to an interior surface of the duct, each of the stators having a stator leading edge and a stator thickness, and a first separation between the rotor plane and the stator leading edge of not less than approximately 1.5 times the stator thickness.
-
公开(公告)号：US20220169369A1
公开(公告)日：2022-06-02
申请号：US17106481
申请日：2020-11-30
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong , Bradley Joseph Passe
IPC: B64C27/00
Abstract: In an embodiment, an aircraft includes a fuselage and a first support boom extending from the fuselage and having a first boom thickness. The aircraft also includes a first propulsion assembly coupled to the first support boom. The first propulsion assembly includes a first rotor hub and first rotor blades extending from the first rotor hub and operable to rotate in a first rotor plane with the first rotor hub. The aircraft also includes a first separation between the first rotor plane and the first support boom of not less than approximately 1.5 times the first boom thickness.
-
公开(公告)号：US11319062B1
公开(公告)日：2022-05-03
申请号：US17067723
申请日：2020-10-11
Applicant: Bell Textron Inc.
Inventor： Alexander Dang Quang Truong
Abstract: A rotor system has a mast axis, a first rotor rotatable about the mast axis in a first direction and the first rotor has a first number of first rotor blades, and a second rotor rotatable about the mast axis in a second direction and the second rotor has a second number of second rotor blades that is different than the first number. The second direction is opposite the first direction.
-
-
-
-
-
-
Search Results
7
records
(took 0.012 seconds)
