公开(公告)号：US20200208730A1

公开(公告)日：2020-07-02

申请号：US16730392

申请日：2019-12-30

Applicant: ABB Schweiz Ag

Inventor： Joe J. Liou ,  Stefan Rakuff

IPC: F16H57/04 ,  F16H57/02 ,  F16H57/00

Abstract: A transmission includes a housing, a plurality of components, and a cooling system. The housing has a plurality of walls that cooperate to define an interior space and a sump configured to store lubricating fluid in use of the transmission. The plurality of components are arranged in the interior space and configured to cooperatively transmit rotational power between an input shaft and an output shaft of the transmission to reduce a rotational speed of the output shaft relative to a rotational speed of the input shaft in use of the transmission. At least one of the plurality of components is supplied with lubricating fluid stored by the sump in use of the transmission. The cooling system is supported by the housing.

公开(公告)号：US10690232B2

公开(公告)日：2020-06-23

申请号：US15994268

申请日：2018-05-31

Applicant: ABB Schweiz AG

Inventor： Joe J. Liou ,  Stefan Rakuff ,  Nolan W. Nicholas

IPC: F16H57/04 ,  F04D29/42 ,  F04D29/44 ,  F04D29/54 ,  F16H57/02 ,  H02K5/18 ,  H02K9/06

Abstract: A system includes a gearbox having an external surface; a fan or impeller constructed to generate a first cooling airflow when rotated; a shroud operative to guide and discharge the first cooling airflow over the external surface and cool the gearbox, wherein at least a portion of the shroud is spaced apart from the gearbox and disposed radially outward of the external surface; and a flow entrainment structure coupled to the gearbox and/or the shroud, wherein the flow entrainment structure is constructed to entrain a second cooling airflow and combine the second cooling airflow with the first cooling airflow to form a combined cooling airflow directed across the external surface to cool the gearbox.

公开(公告)号：US20200018558A1

公开(公告)日：2020-01-16

申请号：US16033992

申请日：2018-07-12

Applicant: ABB Schweiz AG

Inventor： Gregory Cole ,  Qimin Dong ,  Stefan Rakuff ,  Joe J. Liou

IPC: F28F3/04 ,  F04D29/58 ,  F16H57/04 ,  F16H57/02

Abstract: A mechanical drive system includes a mechanical drive component, an enclosure, and a centrifugal fan. The mechanical drive component has a housing and a rotatable shaft supported within the housing. The enclosure is disposed on the housing and a wall of the housing has an output opening therein through which the rotatable shaft of the mechanical drive component extends and another of wall has an intake opening therein. Surfaces of the housing and the walls of the enclosure define an air passage channel extending from the intake opening to the output opening. The centrifugal fan is aligned and in fluid communication with the output opening of the enclosure. The impeller is operatively connected to the rotatable shaft.

公开(公告)号：US20190368596A1

公开(公告)日：2019-12-05

申请号：US15994456

申请日：2018-05-31

Applicant: ABB Schweiz AG

Inventor： Stefan Rakuff ,  Gregory F. Rossano ,  Joe J. Liou ,  Qimin Dong

IPC: F16H57/04 ,  F04D29/42 ,  F04D29/44 ,  F04D29/54

Abstract: A system includes a machine having an external surface and a shaft extending from a first side of the machine; a cooling airflow generator mounted on the shaft and operative to generate a cooling airflow for cooling the machine; a flow guide structure constructed to receive the cooling airflow from the cooling airflow generator and to direct the cooling airflow received from the cooling airflow generator across the external surface; and a scavenge scoop spaced apart from the flow guide structure and disposed at a second side of the machine opposite the first side, wherein the external surface is disposed between the scavenge scoop and the flow guide structure, and wherein the scavenge scoop is constructed to collect a portion of the cooling airflow generated by the cooling airflow generator and direct the a portion of the cooling airflow across a portion of the second side of the machine.