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81.发明授权公开(公告)号：US11619152B2
公开(公告)日：2023-04-04
申请号：US16769655
申请日：2018-11-09
摘要： A crankcase ventilation system comprises a housing defining an internal volume structured to receive a. rotating air/oil separator element. The housing has a housing inlet structured to receive a fluid and a housing outlet defined tangentially in a sidewall of the housing which is structured to allow the fluid to exit the housing. An outlet conduit is fluidly coupled to housing outlet. The outlet conduit comprises an outlet conduit first portion axially aligned with the housing outlet, and an outlet conduit second portion positioned downstream of the outlet, conduit first, portion. A swirl breaking structure is positioned in at least one of an outlet conduit inlet and the outlet conduit second portion. The swirl breaking structure is configured to disrupt swirling flow of the fluid into the outlet conduit so as to reduce a pressure drop experienced by the fluid as the fluid flows from the housing into the outlet conduit.
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公开(公告)号：US20230036998A1
公开(公告)日：2023-02-02
申请号：US17965575
申请日：2022-10-13
发明人： Brian W. Schwandt , Christopher E. Holm , Chirag D. Parikh , Suryanarayanan Paneerselvam , Peter K. Herman
摘要： A rotating coalescer having an ejected coalesced liquid separating device is described. The separating device prevents re-entrainment of liquid into a stream of filtered gas. The rotating coalescer includes a rotating filter element or coalescing cone stack positioned within a rotating coalescer housing. The outer surface of the rotating filter element or the outlet of the coalescing cone stack is displaced from the inner surface of the rotating coalescer housing. The gap between the rotating filter element or the coalescing cone stack and the rotating coalescer housing allows for ejected coalesced liquid, such as oil, to accumulate on the inner surface of the rotating coalescer housing for drainage and allows for filtered gas, such as air, to exit through a clean gas outlet of the rotating coalescer housing.
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公开(公告)号：US20220387920A1
公开(公告)日：2022-12-08
申请号：US17888184
申请日：2022-08-15
发明人： Christopher E. Holm , Peter K. Herman , Arun P. Janakiraman , Gerard Malgorn , Chirag D. Parikh , Anthony Barreteau , Ronan Corvec , Ken Tofsland
摘要： Rotating coalescer elements that maximize the radial-projected separation surface area in a given (rotating) cylindrical volume, where flow to be cleaned is passing axially upward or downward through a separating media of the rotating coalescer element. Various example package assemblies are provided with various types of rotating configurations including cylindrical coiled media packs, frustum coiled media packs, concentric cylinders, coiled metal or polymer films with and without perforations, and/or alternating layers of different materials. The described rotating coalescers may be driven by hydraulic turbine, electric motor, belt, gear or by mounting on rotating machine components, such as rotating engine shafts or connected components.
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公开(公告)号：US20220323885A1
公开(公告)日：2022-10-13
申请号：US17845058
申请日：2022-06-21
IPC分类号： B01D29/21
摘要： A filter element for filtering a fluid that comprises a pleated filter media and a support structure. The pleated filter media comprises pleats that define an upstream gap along an upstream surface of the pleated filter media and a downstream gap along a downstream surface of the pleated filter media. The support structure extends along the downstream surface of the pleated filter media and supports the pleats. The support structure is folded into two layers comprising a first layer and a second layer within the downstream gap. The first layer inner surface and the second layer inner surface are positioned adjacent to each other within the downstream gap. The support structure comprises at least one spacer that increases a distance between the first layer outer surface and the second layer outer surface such that the differential pressure drop through portion of the support structure that is within the downstream gap is decreased.
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公开(公告)号：US20220111315A1
公开(公告)日：2022-04-14
申请号：US17555771
申请日：2021-12-20
发明人： Pravin S. Kadam , Wassem Abdalla , Manolito D. Mendoza , Peter K. Herman , Kevin C. South , Ismail C. Bagci , Deeksha Shukla
IPC分类号： B01D35/16 , B01D35/153 , B01D29/21
摘要： A filter assembly includes a drain port comprising a top portion and at least one surface modification along the top portion. The drain port defines an aperture therein and is alignable with an outlet port. The outlet port includes a seal member that is attachable to an end portion of the outlet port. A portion of the aperture of the drain port is sealable to the seal member when the drain port and the outlet port are aligned such that the at least one surface modification of the drain port does not abut the seal member of the outlet port, thereby creating a sealed connection between the drain port and the outlet port.
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公开(公告)号：US20220072454A1
公开(公告)日：2022-03-10
申请号：US17529893
申请日：2021-11-18
IPC分类号： B01D29/21 , B01D35/147
摘要： A liquid filtration system includes a filter head, a shell housing, and a filter cartridge. The filter head includes a skirt having a ramp disposed at a first end of the skirt. The shell housing is coupled to the filter head. The filter cartridge is disposed within the shell housing. The filter cartridge includes a filter media pack and an endcap coupled to a first end of the filter media pack. The endcap includes an interface member extending from an upper surface of the endcap. The interface member includes a sealing member that is at least partially tilted at an oblique angle relative to a central axis of the endcap. The sealing member is sealingly engaged with the skirt.
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87.发明申请公开(公告)号：US20210180486A1
公开(公告)日：2021-06-17
申请号：US16769655
申请日：2018-11-09
摘要： A crankcase ventilation system comprises a housing defining an internal volume structured to receive a. rotating air/oil separator element. The housing has a housing inlet structured to receive a to fluid and a housing outlet defined tangentially in a sidewall of the housing which is structured to allow the fluid to exit the housing. An outlet conduit is fluidly coupled to housing outlet. The outlet conduit comprises an outlet conduit first portion axially aligned with the housing outlet, and an outlet conduit second portion positioned downstream of the outlet, conduit first, portion. A swirl breaking structure is positioned in at least one of an outlet conduit inlet and the outlet conduit second portion. The swirl breaking structure is configured to disrupt swirling flow of the fluid into the outlet conduit so as to reduce a pressure drop experienced by the fluid as the fluid flows from the housing into the outlet conduit.
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公开(公告)号：US20210039115A1
公开(公告)日：2021-02-11
申请号：US16966082
申请日：2019-02-01
发明人： Peter K. Herman , Chirag D. Parikh
摘要： A separation assembly comprises a housing, a jet that expels a fluid within the housing, and a turbine positioned within the housing and positioned so as to be contacted by the fluid expelled from the jet. The fluid causes the turbine to rotate about a center rotational axis within the housing. The turbine comprises a first axial end, a second axial end, and a plurality of vanes extending axially relative to the center rotational axis from the first axial end to the second axial end. The plurality of vanes defines axially-extending channels between each of the plurality of vanes. The first axial end is axially open such that fluid can flow unblocked axially through the first axial end and into the channels. The jet is positioned such that at least a portion of the fluid enters into the turbine through the first axial end.
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公开(公告)号：US20200332686A1
公开(公告)日：2020-10-22
申请号：US16921466
申请日：2020-07-06
摘要： The combination of a gas-pressure-driven pump jet nozzle or alternatively Coanda effect nozzle with an impactor nozzle(s) in an air-oil separator for separating oil from blow-by gasses from a crankcase of an internal combustion engine, or for separating liquid aerosol from gas, in general. Such combination enhances impaction efficiency and enables operation at higher pressure differentials (or pressure drop) (“dP”) without causing excessive backpressure in the air-oil separator.
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公开(公告)号：US20200276532A1
公开(公告)日：2020-09-03
申请号：US16876509
申请日：2020-05-18
发明人： Brian W. Schwandt , Christopher E. Holm , Chirag D. Parikh , Suryanarayanan Paneerselvam , Peter K. Herman
摘要： A rotating coalescer having an ejected coalesced liquid separating device is described. The separating device prevents re-entrainment of liquid into a stream of filtered gas. The rotating coalescer includes a rotating filter element or coalescing cone stack positioned within a rotating coalescer housing. The outer surface of the rotating filter element or the outlet of the coalescing cone stack is displaced from the inner surface of the rotating coalescer housing. The gap between the rotating filter element or the coalescing cone stack and the rotating coalescer housing allows for ejected coalesced liquid, such as oil, to accumulate on the inner surface of the rotating coalescer housing for drainage and allows for filtered gas, such as air, to exit through a clean gas outlet of the rotating coalescer housing.
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