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公开(公告)号：US20180291740A1
公开(公告)日：2018-10-11
申请号：US15924173
申请日：2018-03-16
发明人： Greg John Montie
摘要： A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
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公开(公告)号：US20240093686A1
公开(公告)日：2024-03-21
申请号：US18470625
申请日：2023-09-20
CPC分类号： F04C2/1076 , F04C15/0042 , F04C2240/10 , F04C2240/20 , F04C2250/20 , F04C2250/30
摘要： Rotary positive displacement machines based on trochoidal geometry and including a helical rotor that undergoes planetary motion relative to a helical stator can be designed and configured so that the axial load or rotor pressure force is positive, negative, or neutral. In some embodiments, a change in axial load, caused by a change in differential pressure across the machine, can be used to trigger a change in a mechanical configuration of the machine.
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公开(公告)号：US11802558B2
公开(公告)日：2023-10-31
申请号：US17565454
申请日：2021-12-30
CPC分类号： F04C2/1076 , F04C15/0042 , F04C2240/10 , F04C2240/20 , F04C2250/20 , F04C2250/30
摘要： Rotary positive displacement machines based on trochoidal geometry and including a helical rotor that undergoes planetary motion relative to a helical stator can be designed and configured so that the axial load or rotor pressure force is positive, negative, or neutral. In some embodiments, a change in axial load, caused by a change in differential pressure across the machine, can be used to trigger a change in a mechanical configuration of the machine.
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公开(公告)号：US11608827B2
公开(公告)日：2023-03-21
申请号：US17198124
申请日：2021-03-10
IPC分类号： F04C2/107 , F04C2/22 , F01C1/10 , F01C1/22 , F04C18/48 , F04C3/00 , F04C27/00 , F02B53/00 , H02K21/28 , F01C21/10
摘要： Rotary positive displacement machines based on trochoidal geometry, that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides structural and/or operational advantages in the rotary machine.
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公开(公告)号：US11988208B2
公开(公告)日：2024-05-21
申请号：US17961797
申请日：2022-10-07
IPC分类号： F04C2/10 , F01C1/04 , F01C1/10 , F01C1/22 , F04C2/107 , F04C2/22 , F04C3/00 , F04C18/48 , F01C21/10 , F02B53/00 , F04C27/00 , H02K21/28
CPC分类号： F04C2/1073 , F01C1/04 , F01C1/104 , F01C1/22 , F04C2/22 , F04C3/00 , F04C18/48 , F01C21/106 , F02B2053/005 , F02B2730/018 , F04C27/008 , F04C2240/10 , F04C2240/20 , F04C2250/20 , F04C2250/30 , H02K21/28
摘要： Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides advantages with respect to sealing in the rotary machine. In multi-stage embodiments, the rotor-stator geometry remains substantially constant or varies along the axis of the rotary machine.
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公开(公告)号：US11815094B2
公开(公告)日：2023-11-14
申请号：US17197040
申请日：2021-03-10
CPC分类号： F04C2/1076 , F04C2/084 , F04C2240/10 , F04C2240/20 , F04C2250/20 , F04C2250/30
摘要： Rotary positive displacement machines based on trochoidal geometry that includes a helical rotor that undergoes planetary motion relative to a helical stator are described. The rotor can have a hypotrochoidal-based cross-sectional shape, with the corresponding stator cavity cross-sectional shape being the outer envelope of the rotor cross-sectional shape as it undergoes planetary motion, or the stator cavity can have an epitrochoidal-based cross-sectional shape with the corresponding rotor cross-sectional shape being the inner envelope of the stator cross-sectional shape as it undergoes planetary motion. Such machines can be configured so that the stator axis is spaced from the rotor axis, the rotor is configured to spin about its axis and the stator is configured to spin about its axis, and/or the rotor and the stator are held at a fixed eccentricity so that the rotor undergoes planetary motion relative to the stator, but does not orbit.
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公开(公告)号：US11506056B2
公开(公告)日：2022-11-22
申请号：US17067772
申请日：2020-10-12
摘要： A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
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公开(公告)号：US20240280099A1
公开(公告)日：2024-08-22
申请号：US18639036
申请日：2024-04-18
IPC分类号： F04C2/107 , F01C1/04 , F01C1/10 , F01C1/22 , F01C21/10 , F02B53/00 , F04C2/22 , F04C3/00 , F04C18/48 , F04C27/00 , H02K21/28
CPC分类号： F04C2/1073 , F01C1/04 , F01C1/104 , F01C1/22 , F04C2/22 , F04C3/00 , F04C18/48 , F01C21/106 , F02B2053/005 , F02B2730/018 , F04C27/008 , F04C2240/10 , F04C2240/20 , F04C2250/20 , F04C2250/30 , H02K21/28
摘要： Sealing in rotary positive displacement machines based on trochoidal geometry that comprise a helical rotor that undergoes planetary motion within a helical stator is described. Seals can be mounted on the rotor, the stator, or both. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides advantages with respect to sealing in the rotary machine. In multi-stage embodiments, the rotor-stator geometry remains substantially constant or varies along the axis of the rotary machine.
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公开(公告)号：US20210189880A1
公开(公告)日：2021-06-24
申请号：US17198124
申请日：2021-03-10
摘要： Rotary positive displacement machines based on trochoidal geometry, that comprise a helical rotor that undergoes planetary motion within a helical stator are described. The rotor can have a hypotrochoidal cross-section, with the corresponding stator cavity profile being the outer envelope of the rotor as it undergoes planetary motion, or the stator cavity can have an epitrochoidal cross-section with the corresponding rotor profile being the inner envelope of the trochoid as it undergoes planetary motion. In some embodiments, the geometry is offset in a manner that provides structural and/or operational advantages in the rotary machine.
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公开(公告)号：US20210062655A1
公开(公告)日：2021-03-04
申请号：US17067772
申请日：2020-10-12
摘要： A rotary machine, for directing a quantity of fluid from an inlet to an outlet, comprises one or more elliptical or near-elliptical rotors having planetary rotation within a housing. The interior cavity of the housing comprises an inverse apex region that is in contact with the rotor during its rotation. In various embodiments the rotor and housing can be symmetric or asymmetric in cross-section. Features are described that can improve the operation of the machine for various end-use applications. Such features include cut-outs that are fluidly connected to the inlet or outlet ports of the machine, mechanisms for reducing variation in output flow rate from the rotary machine, linings for the interior cavity of the housing, pressure relief mechanisms, dynamic apex seals and other sealing mechanisms.
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