公开(公告)号：US20240229815A1

公开(公告)日：2024-07-11

申请号：US18290271

申请日：2022-05-06

Applicant: Dyson Technology Limited

Inventor： Raul CORRALEJO ANTON ,  Robert James KYLE ,  Christopher Ashley MONK

IPC: F04D29/08 ,  F04D29/16 ,  F04D29/28 ,  F04D29/44

CPC classification number: F04D29/083 ,  F04D29/161 ,  F04D29/281 ,  F04D29/441

Abstract: A compressor is provided for use in domestic appliances. The compressor includes: an impeller including an inlet, an outlet, a hub defining a rotational axis of the impeller, a plurality of impeller blades that extend from the hub, and a shroud that at least partially surrounds the impeller blades; a housing that at least partially surrounds the shroud and that is coaxially arranged with respect to the rotational axis of the impeller to allow the impeller to rotate within the housing; a leakage flow path defined between the shroud and the housing leading from a leakage flow path inlet to a reinjection port, and a labyrinth seal arrangement provided in the leakage flow path. The labyrinth seal arrangement includes one or more shroud rings interdigitated with one or more housing rings so as to form a tortuous flow path for fluid flowing through the leakage flow path.

公开(公告)号：US20240229814A1

公开(公告)日：2024-07-11

申请号：US18290258

申请日：2022-05-06

Applicant: Dyson Technology Limited

Inventor： Raul CORRALEJO ANTON ,  Robert James KYLE ,  Christopher Ashley MONK

IPC: F04D29/08 ,  F04D29/28 ,  F04D29/42 ,  F04D29/44

CPC classification number: F04D29/083 ,  F04D29/281 ,  F04D29/4226 ,  F04D29/441

Abstract: A compressor is provided for use in domestic appliances. The compressor includes: an impeller including an inlet, an outlet, a hub defining a rotational axis of the impeller, a plurality of impeller blades that extend from the hub, and a shroud that at least partially surrounds the impeller blades; a housing that at least partially surrounds the shroud and that is coaxially arranged with respect to the rotational axis of the impeller to allow the impeller to rotate within the housing; a leakage flow path defined between the shroud and the housing leading from a leakage flow path inlet to a leakage flow path outlet; a labyrinth seal arrangement provided in the leakage flow path; and a flow straightening arrangement having an inlet at an outlet of the labyrinth seal arrangement.