公开(公告)号：US20210207617A1

公开(公告)日：2021-07-08

申请号：US17056361

申请日：2019-03-12

Applicant: Dyson Technology Limited

Inventor： Mark Andrew JOHNSON ,  Simon Alexander LOCKE ,  Matthew John CHILDE ,  Cathal CLANCY ,  Vadivel Kumaran SIVASHANMUGAM ,  Nora ER-ROUHLY ,  Lukasz Andrzej KOWALCZYK ,  Alan Glynn SANDERSON ,  Thomas Richard STAFFORD ,  Sarah Elizabeth ELSON ,  Alexander Thomas WELLS ,  Jim Ray LLUISMA

IPC: F04D29/44 ,  F04D29/28 ,  A47L5/22

Abstract: A compressor has a rotor assembly having an impeller for generating an airflow through the compressor, a stator core assembly for causing rotation of the impeller, and a diffuser assembly for acting on the airflow generated by the impeller. The diffuser assembly has a first diffuser stage and a second diffuser stage. The first and second diffuser stages are separate components connected to one another by a fastener.

公开(公告)号：US20210285328A1

公开(公告)日：2021-09-16

申请号：US17257800

申请日：2019-05-17

Applicant: Dyson Technology Limited

Inventor： Mahyar MAHMOODILARI ,  Vadivel Kumaran SIVASHANMUGAM ,  Lukasz Andrzej KOWALCZYK

IPC: F01D5/02 ,  F04D25/06 ,  F01D5/30 ,  A45D20/12

Abstract: An axial impeller has a hub and a plurality of blades extending about the hub. Each blade has a root fixed to the hub, a tip spaced away from the hub, a leading edge extending between the root and the tip, and a trailing edge extending between the root and the tip. The root is inclined at a first angle α relative to a first axis B parallel to a rotational axis of the impeller, the tip is inclined at a second angle β relative to the first axis B, and the second angle β is greater than the first angle α. A first end of the trailing edge at the root is located downstream of a second end of the trailing edge at the tip, and a first end of the leading edge at the root is downstream of a second end of the leading edge at the tip.

公开(公告)号：US20210367476A1

公开(公告)日：2021-11-25

申请号：US16976780

申请日：2019-02-19

Applicant: Dyson Technology Limited

Inventor： Thomas Richard STAFFORD ,  Vadivel Kumaran SIVASHANMUGAM ,  Lukasz Andrzej KOWALCZYK

IPC: H02K5/24 ,  H02K1/14 ,  H02K3/52 ,  H02K9/06 ,  H02K1/18

Abstract: A brushless motor has a rotor assembly including a shaft, an impeller, a bearing assembly and a rotor core. The brushless motor has a stator assembly and a frame having an outer portion and an inner portion radially inward of the outer portion. The inner portion supports at least one of the rotor assembly and the stator assembly. The brushless motor has a strut extending between the outer portion and the inner portion. The strut extends at least partially into a recess formed in the stator assembly.