公开(公告)号：US20190160477A1

公开(公告)日：2019-05-30

申请号：US16321244

申请日：2017-08-17

申请人： Alfdex AB

发明人： Anders ÖRTEGREN

IPC分类号： B04B15/06 ,  B04B5/08 ,  B04B5/12 ,  B04B9/10 ,  F01M13/04

摘要： A centrifugal separator for cleaning gas containing contaminants includes a stationary casing, enclosing a separation space through which a gas flow is permitted, a gas inlet extending through the stationary casing and permitting supply of the gas to be cleaned, a rotating member including a plurality of separation members arranged in said separation space and being arranged to rotate around an axis of rotation, a gas outlet configured to permit discharge of cleaned gas and including an outlet opening through a wall of the stationary casing, a drainage outlet configured to permit discharge of liquid impurities separated from the gas to be cleaned, and a drive member, for rotating the rotating member. The centrifugal separator further includes a control unit configured to control the drive member to rotate the rotating member at a first speed during a separation phase and at a second speed, which is higher than the first speed, during a cleaning phase to remove clogging on or between said separation members, wherein the cleaning phase is shorter in time than the separation phase.

公开(公告)号：US20180141058A1

公开(公告)日：2018-05-24

申请号：US15580343

申请日：2016-05-30

申请人： ALFDEX AB

发明人： Anders ÖRTEGREN ,  Mats OLSSON ,  Per STJERNSWÄRD ,  Pedro HERNANDEZ FRACZEK ,  Mikael WALTER

IPC分类号： B04B1/08 ,  B04B7/14 ,  B04B11/02 ,  B04B5/00 ,  B04B9/02 ,  B04B9/06

CPC分类号： B04B1/08 ,  B04B5/005 ,  B04B7/14 ,  B04B9/02 ,  B04B9/06 ,  B04B11/02 ,  F01M2013/0422

摘要： A centrifugal separator for separating a liquid phase from crankcase gases of an internal combustion engine includes a separation chamber, a rotor shaft, a rotor inside the separation chamber, an inlet for crankcase gases, a gas outlet, and a liquid outlet for separated liquid phase. The centrifugal separator also includes a liquid outlet chamber, a check valve, and a rotating member. The liquid outlet chamber forms an individual chamber and is arranged in fluid communication with the separation chamber via a liquid passage. The rotating member is connected to the rotor shaft and is arranged inside the liquid outlet chamber. The liquid outlet forms an outlet of the liquid outlet chamber. The check valve is arranged in the liquid outlet.

公开(公告)号：US20190283043A1

公开(公告)日：2019-09-19

申请号：US16349536

申请日：2017-11-09

申请人： ALFDEX AB

发明人： Anders ÖRTEGREN

IPC分类号： B04B9/12 ,  B04B5/00 ,  B04B5/12 ,  B04B5/08 ,  B01D45/14 ,  B04B7/02 ,  F01M13/04

摘要： A housing for a centrifugal separator is disclosed, wherein the centrifugal separator is configured to separate a liquid phase from crankcase gases of an internal combustion engine using a rotor. The housing includes a housing body forming a separation chamber, an opening in the housing body, a bearing retainer arranged at the opening, and a bearing inserted into the bearing retainer. The bearing is configured to receive a rotor shaft extending into the separation chamber. The bearing retainer includes a bearing seat portion provided with a number of plastically deformed zones retaining the bearing in the bearing retainer. A centrifugal separator and a method of retaining a bearing of a rotor shaft in a housing for a centrifugal separator are also disclosed.