公开(公告)号：WO2021249694A1

公开(公告)日：2021-12-16

申请号：PCT/EP2021/061359

申请日：2021-04-29

Applicant: VALEO SYSTEMES THERMIQUES

Inventor： CAPOULUN, Geoffroy ,  SIFFREIN-BLANC, Nicolas

IPC: H05K1/18 ,  B60H1/00 ,  H05K3/30 ,  F04D17/16 ,  F04D25/08 ,  F04D29/42 ,  F04D29/58 ,  H01R13/24 ,  H05K3/34 ,  H01R12/58 ,  H01R12/70 ,  B60H1/00471 ,  B60H2001/00614 ,  F04D25/082 ,  F04D29/4226 ,  F04D29/5813 ,  H01R12/585 ,  H01R12/7076 ,  H01R13/245 ,  H05K1/184 ,  H05K2201/10303 ,  H05K2201/1059 ,  H05K2201/1078 ,  H05K2201/10878 ,  H05K3/308 ,  H05K3/3447

Abstract: Un composant mécanique de contact électrique (44) est destiné à être fixé sur une carte électronique (42), afin de mettre en contact électrique un circuit imprimé sur la carte électronique (42) avec une lame de contact électrique (45), notamment une lame de contact électrique (45) avec un bobinage statorique d'un moteur électrique (14) d'un ventilateur (10). Le composant mécanique de contact électrique (44) comprend une première languette (64) avec une première portion (641) destinée à être fixée à plat sur la carte électronique (42); une deuxième languette (66) avec une première portion (661) destinée à être fixée à la lame de contact électrique (45); et une troisième languette (68) élastique, entre la première languette (64) et la deuxième languette (66). Les premières portions (641; 661) des première et deuxième languettes (64; 66) s'étendent selon deux plans (P1; P2) distincts, notamment inclinés.

公开(公告)号：WO2022018020A2

公开(公告)日：2022-01-27

申请号：PCT/EP2021/070134

申请日：2021-07-19

Applicant: ZEHNDER GROUP INTERNATIONAL AG

Inventor： HADDEMAN, Martijn ,  ARENDS, Eric ,  BRINK, Rene

IPC: F04D17/16 ,  F04D29/42 ,  F04D27/00 ,  F24F11/77 ,  F04D29/70 ,  F04D27/001 ,  F04D29/4226 ,  F04D29/706 ,  F05D2270/301 ,  F24F1/0022 ,  F24F12/006

Abstract: The invention relates to a centrifugal fan arrangement (1) comprising a centrifugal fan (2) rotatably mounted within a scroll housing (3), The centrifugal fan comprises a plurality of circumferentially spaced fan blades fixed to a central fan axle extending along an axial direction (A) and/ or to a circumferential fan ring extending in a plane orthogonal to an axial direction (A). The scroll housing (3) comprises a housing main portion (3b) with a maximum housing diameter D and a maximum axial housing width H, a housing inlet portion (3a) and a housing outlet portion (3c), said housing main portion (3b) surrounding said centrifugal fan (2) at radially outer locations to define a circumferentially extending air guiding space (GS). The housing inlet portion (3a) is located at radially inner locations to define an inner air inlet space (IS). The housing outlet portion (3c) is located at a radially outer location in order to define an air outlet space (OS). A ratio D/H between said maximum housing diameter D of said housing main portion and said maximum axial housing width Hof said housing main portion (3b) is comprised between 20/10 and 35/10, and preferably between 25/10 and 32/10.

公开(公告)号：WO2023275106A1

公开(公告)日：2023-01-05

申请号：PCT/EP2022/067820

申请日：2022-06-29

Applicant: VALEO KLIMASYSTEME GMBH

Inventor： BELLUR, Raghu Tejaswi ,  SOTO, Christian Jonhatan ,  LISKA, Jan ,  LEPOT, Juraj

IPC: F04D17/16 ,  F04D25/06 ,  F04D29/42 ,  F04D29/66 ,  H02K5/24 ,  F04D29/4226 ,  F04D29/668 ,  H02K2213/03

Abstract: Eine Gebläsemotorlagerung umfassend eine innere Gebläsemotoraufnahme, welche einen eine Antriebsachse aufweisenden Gebläsemotor aufnimmt und eine äußere Struktur, welche die innere Gebläsemotoraufnahme stützt. Die Antriebsachse des Gebläsemotors bildet eine Zylinderkoordinatenachse eines Zylinderkoordinatensystems, wobei zur Beschränkung einer Relativbewegung zwischen der inneren Gebläsemotoraufnahme und der äußeren Struktur an zumindest zwei unterschiedlichen Ordinatenabständen bei unterschiedlichem Radialabstand jeweils ein beabstandetes Flächenstückpaar ausgebildet ist.

公开(公告)号：WO2022240096A1

公开(公告)日：2022-11-17

申请号：PCT/KR2022/006567

申请日：2022-05-09

Applicant: 엘지전자 주식회사

Inventor： 오준철 ,  배효조 ,  문창국 ,  이병철

IPC: F04D17/12 ,  F04D25/06 ,  F04D29/053 ,  F04D29/28 ,  F04D29/42 ,  F04D27/02 ,  F04D29/286 ,  F04D29/4226 ,  F05D2210/14

Abstract: 본 발명은, 냉매의 압축을 위한 회전 동력을 발생 가능하게 하는 구동 유닛; 일 방향으로 연장되며, 상기 구동 유닛으로부터 발생된 동력에 의해 회전 가능하도록 상기 구동 유닛에 설치되는 축; 상기 축의 일 측에서 상기 축에 설치되는 제1 내지 제3압축유닛을 포함하고, 상기 제1압축유닛은, 증발기로부터 배출된 냉매를 흡입하고 흡입된 냉매를 압축하여 토출 가능하게 하도록 상기 구동 유닛으로부터의 동력에 의해 회전하는 제1 임펠러를 구비하며, 상기 제2압축유닛은, 상기 제1압축유닛으로부터 토출된 냉매를 흡입하고 흡입된 냉매를 압축하여 토출 가능하게 하도록 상기 구동 유닛으로부터의 동력에 의해 회전하는 제2임펠러를 구비하며, 상기 제3압축유닛은 제3임펠러를 구비하고, 상기 제3임펠러는, 상기 제2압축유닛으로부터 토출된 냉매를 흡입하고 흡입된 냉매를 압축하여 외부로 토출하거나 상기 제1압축유닛으로 바이패스하여 제공 가능하게 하는 것을 특징으로 하는 터보 압축기 및 이를 제어하는 방법을 제공한다.

公开(公告)号：WO2022238686A1

公开(公告)日：2022-11-17

申请号：PCT/GB2022/051159

申请日：2022-05-06

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: F04D17/06 ,  F04D17/16 ,  F04D25/08 ,  F04D29/16 ,  F04D29/28 ,  F04D29/42 ,  F04D29/44 ,  F04F5/16 ,  F01D11/02 ,  F01D11/08 ,  F04D29/083 ,  F04D29/162 ,  F04D29/164 ,  F04D29/281 ,  F04D29/326 ,  F04D29/4213 ,  F04D29/4226 ,  F04D29/441

Abstract: A compressor is provided for use in domestic appliances. The compressor comprises: an impeller comprising 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.

公开(公告)号：WO2022238685A1

公开(公告)日：2022-11-17

申请号：PCT/GB2022/051158

申请日：2022-05-06

Applicant: DYSON TECHNOLOGY LIMITED

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

IPC: F04D17/06 ,  F04D29/16 ,  F04D29/28 ,  F04D29/42 ,  F04D29/44 ,  F04D25/08 ,  F04F5/16 ,  F04D17/16 ,  F01D11/02 ,  F01D11/08 ,  F04D29/083 ,  F04D29/161 ,  F04D29/162 ,  F04D29/281 ,  F04D29/326 ,  F04D29/4213 ,  F04D29/4226 ,  F04D29/441

Abstract: A compressor is provided for use in domestic appliances. The compressor comprises: an impeller comprising 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 comprises 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.