公开(公告)号：US12024304B2

公开(公告)日：2024-07-02

申请号：US18299276

申请日：2023-04-12

Applicant: Archer Aviation Inc.

Inventor： Scott Graves ,  Robert Wayne Moore

IPC: H02K11/33 ,  B60L15/06 ,  B60L15/38 ,  B64C27/54 ,  B64C29/00 ,  B64D27/24 ,  B64D33/08 ,  B64D35/02 ,  F16B2/06 ,  F16H57/08 ,  H02K1/27 ,  H02K1/32 ,  H02K5/124 ,  H02K5/20 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K15/03 ,  H02M7/5395 ,  H02P21/00 ,  H02P25/16 ,  H02P27/06 ,  H02P27/08 ,  H02K7/00

CPC classification number: B64D27/24 ,  B60L15/06 ,  B60L15/38 ,  B64C27/54 ,  B64C29/0008 ,  B64C29/0033 ,  B64D33/08 ,  B64D35/02 ,  F16B2/06 ,  F16H57/08 ,  H02K1/27 ,  H02K1/32 ,  H02K5/124 ,  H02K5/203 ,  H02K7/08 ,  H02K7/116 ,  H02K9/19 ,  H02K11/33 ,  H02K15/03 ,  H02M7/5395 ,  H02P21/50 ,  H02P25/16 ,  H02P27/06 ,  H02P27/08 ,  B60L2200/10 ,  B60L2210/40 ,  H02K7/006

Abstract: An electric propulsion system comprising an electric motor assembly. The electric motor assembly may include a housing having an internal volume, a stator ring disposed about a perimeter of the internal volume, and a rotor positioned within the stator. The electric motor assembly may include a main shaft connected to the rotor via a gear reduction, wherein the main shaft extends through the rotor. The electric motor assembly may include a collar connected to the main shaft, wherein the collar encircles the main shaft, and at least a portion of the collar is configured to direct a fluid away from the main shaft and toward the stator ring.

公开(公告)号：US11975854B2

公开(公告)日：2024-05-07

申请号：US18306275

申请日：2023-04-25

Applicant: Archer Aviation Inc.

Inventor： Alan D. Tepe ,  Stephen Michael Spiteri ,  Scott Graves ,  Alan Baldwin ,  Wei Wu ,  Robert Wayne Moore ,  Michael Zwiers ,  Diederik Marius

IPC: B64D27/24 ,  B64C29/00 ,  H02P25/16 ,  H02P27/06

CPC classification number: B64D27/24 ,  B64C29/0033 ,  H02P25/16 ,  H02P27/06

Abstract: An electrical propulsion system for a vertical take-off and landing (VTOL) aircraft comprises an electrical motor assembly and an inverter assembly. The inverter assembly comprises a housing, a capacitor assembly, at least one printed circuit board assembly (PCBA), and a plurality of positioning pins. The capacitor assembly comprises a center hole, at least one capacitor, a capacitor housing having at least one busbar, and a plurality of through holes in the capacitor housing. The capacitor assembly and the at least one PCBA are positioned inside the housing. The plurality of positioning pins pass through the through the plurality of through holes of the capacitor housing and the at least one PCBA and are connected to the housing.

公开(公告)号：US11912424B1

公开(公告)日：2024-02-27

申请号：US18148688

申请日：2022-12-30

Applicant: ARCHER AVIATION INC.

Inventor： Scott Graves

IPC: B64D27/24 ,  F16H57/08 ,  B64D35/02 ,  B64C29/00

CPC classification number: B64D27/24 ,  B64C29/0033 ,  B64D35/02 ,  F16H57/08

Abstract: An electric engine for a vertical takeoff-and-landing aircraft comprising an electric motor assembly including a stator and a rotor. The electric engine may comprise an inverter assembly, a gearbox assembly including a sun gear, and a main shaft including a length of the main shaft that extends from a first end of the main shaft through the gearbox assembly and through the electric motor assembly to a second end of the main shaft. The electric engine may include a hydrodynamic bearing located between the main shaft and sun gear, and a bearing including an inner race mechanically coupled to the main shaft and an outer race mechanically coupled to the rotor. The electric engine may include a bearing including an outer race mechanically coupled to an inner surface of the rotor.

公开(公告)号：US12030656B1

公开(公告)日：2024-07-09

申请号：US18599703

申请日：2024-03-08

Applicant: Archer Aviation Inc.

Inventor： Scott Graves ,  Alan D. Tepe ,  Robert Wayne Moore

IPC: B64D33/08 ,  B64C29/00 ,  B64D27/24 ,  B64D27/30

CPC classification number: B64D27/24 ,  B64C29/0033 ,  B64D27/30 ,  B64D33/08

Abstract: An electric propulsion system for a vertical take-off and landing (VTOL) aircraft having a heat exchanger to cool fluids used in an electrical engine, the electric propulsion system comprising at least one electrical engine mechanically connected directly or indirectly to a fuselage of the VTOL aircraft and electrically connected to an electrical power source. The electrical engine may comprise an electrical motor having a stator and a rotor; a gearbox assembly comprising a sun gear; at least one planetary gear; a ring gear; and a planetary carrier. The electric engine may include an inverter assembly comprising a thermal plate and an inverter assembly housing; an end bell assembly that is connected to the thermal plate of the inverter assembly; and a heat exchanger comprising an array of cooling fins and tubes.

公开(公告)号：US11901795B1

公开(公告)日：2024-02-13

申请号：US18316931

申请日：2023-05-12

Applicant: ARCHER AVIATION, INC.

Inventor： Scott Graves ,  Diego Silva

IPC: H02K7/00 ,  H02K1/27 ,  B64D27/24 ,  H02K1/32 ,  H02K15/03 ,  B64C29/00

CPC classification number: H02K7/006 ,  B64C29/0033 ,  B64D27/24 ,  H02K1/27 ,  H02K1/32 ,  H02K15/03

Abstract: A rotor assembly has a sleeve, a rotor hub, a lamination core, and a plurality of tapered magnets disposed circumferentially around an inner diameter of the sleeve. The plurality of tapered magnets are configured to abut on one another. The plurality of tapered magnets includes a first set of tapered magnets and a second set of tapered magnets. Insertion of the first set of tapered magnets axially relative to the second set of tapered magnets is configured to increase a diameter of the sleeve. The rotor hub is configured to retain at least one of the lamination core, the plurality of tapered magnets, or the sleeve.

公开(公告)号：US11827349B1

公开(公告)日：2023-11-28

申请号：US18324702

申请日：2023-05-26

Applicant: ARCHER AVIATION, INC.

Inventor： Kerry Manning ,  Nathan Storrs ,  Scott Graves

IPC: B64C29/00 ,  B64D27/26 ,  B64D27/24 ,  B64C11/02

CPC classification number: B64C29/0033 ,  B64C11/02 ,  B64D27/24 ,  B64D27/26

Abstract: A VTOL aircraft includes a lift propeller configured to provide lift during takeoff, landing and hover operations. The lift propeller is configured to be stowed close to a boom surface when not in use during, e.g., cruise flight, to minimize drag around propeller surfaces. The lift propeller may be displaced vertically with respect to the boom when switching to a lift configuration to provide greater separation from the boom to improve lift efficiency and reduce unwanted vibrations. The lift propeller may have a fail-safe configuration that allows the propeller to move passively between lift and stowed configurations, and to fully rotate even when fully retracted.

公开(公告)号：US11820523B1

公开(公告)日：2023-11-21

申请号：US18298548

申请日：2023-04-11

Applicant: Archer Aviation Inc.

Inventor： Scott Graves

IPC: B64D27/24 ,  B64D35/00 ,  B64C29/00 ,  B64C11/00 ,  B64D35/02 ,  H02K7/00

CPC classification number: B64D27/24 ,  B64C29/0033 ,  B64D35/02 ,  H02K7/006

Abstract: An electric propulsion system for a vertical take-off and landing (VTOL) aircraft, the electric propulsion system including an electrical motor having a stator and a rotor. The electric propulsion system may include a main shaft possessing at least one shoulder on an outer surface of the main shaft. The electric propulsion system may include a gearbox assembly comprising a sun gear that is concentrically aligned with the main shaft at least one planetary gear that interfaces with the sun gear. The electric propulsion system may include a planetary carrier, wherein a center of the planetary carrier is concentrically aligned with the main shaft. The electric propulsion system may include a propeller flange assembly that travels through the rotor, and an axial buttress positioned in the at least one shoulder located on the main shaft.