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公开(公告)号：EP1388131B1
公开(公告)日：2007-10-10
申请号：EP02736768.9
申请日：2002-05-13
Applicant: Roper Pump Company
Inventor： FLAVELLE, William, D.
IPC: G07D11/00
CPC classification number: G05D11/003 , F02C7/228 , F04C2/18 , F04C11/001 , F04C15/0042 , G05D11/006 , Y10T137/0363 , Y10T137/2516 , Y10T137/2524 , Y10T137/85938
Abstract: A fluid metering device (30) preferably includes a substantially linear series of intermeshing gears (310, 314). The device includes an inlet port (340I-342I) adjacent the intermeshing portion of each pair of gears (310-313) within the series adjacent the point at which the pair of gears diverge. The device (300) further includes a discharge port (340D-342D) adjacent the intermeshing portion of each pair of gears within the series adjacent the point at which the pair of gears converge. The device (30) is configured to convey liquid from a main inlet stream of liquid, through the inlet ports (340I-342I), and out the discharge ports (140D-142D) at substantially equal rates. The device (30) preferably includes a pressure balance inlet port (344I-345I) and a pressure balance discharge port (344D-345D) adjacent the exterior portion of each end gear (310, 314) within the series of gears (310-314) for balancing forces exerted on the end gear (310, 314) by liquid passing through the various inlet and discharge ports (340I-342I, 340D-34dD).
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公开(公告)号：EP1388131A1
公开(公告)日：2004-02-11
申请号：EP02736768.9
申请日：2002-05-13
Applicant: Roper Pump Company
Inventor： FLAVELLE, William, D.
IPC: G07D11/00
CPC classification number: G05D11/003 , F02C7/228 , F04C2/18 , F04C11/001 , F04C15/0042 , G05D11/006 , Y10T137/0363 , Y10T137/2516 , Y10T137/2524 , Y10T137/85938
Abstract: A fluid metering device (30) preferably includes a substantially linear series of intermeshing gears (310, 314). The device includes an inlet port (340I-342I) adjacent the intermeshing portion of each pair of gears (310-313) within the series adjacent the point at which the pair of gears diverge. The device (300) further includes a discharge port (340D-342D) adjacent the intermeshing portion of each pair of gears within the series adjacent the point at which the pair of gears converge. The device (30) is configured to convey liquid from a main inlet stream of liquid, through the inlet ports (340I-342I), and out the discharge ports (140D-142D) at substantially equal rates. The device (30) preferably includes a pressure balance inlet port (344I-345I) and a pressure balance discharge port (344D-345D) adjacent the exterior portion of each end gear (310, 314) within the series of gears (310-314) for balancing forces exerted on the end gear (310, 314) by liquid passing through the various inlet and discharge ports (340I-342I, 340D-34dD).
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公开(公告)号：US10458240B2
公开(公告)日：2019-10-29
申请号：US15234595
申请日：2016-08-11
Applicant: Roper Pump Company
Inventor： John Eugene Purcell , Tyson Bentley Anderson , Edmond Tate Coghlan
Abstract: A hybrid elastomer/metal on metal motor for a helical gear device includes a rotor and stator comprising a hydraulic motor that produces work when a working fluid is pumped therethrough. The improvement involves the stator being, for part of its length, a conventional or even wall stator, using an elastomer to form a seal against the moving rotor. The stator's remaining length comprises a profiled rigid surface that forms a seal directly with the moving rotor. This gives the motor the high efficiency of the elastomer sealing against the rotor, and simultaneously provides a backup of the stator's rigid section allowing continued motor operation at reduced efficiency, if the elastomer part failed in service. The invention also includes combinations of a regular disk stack with a rubber lining, a rigid material disk stack (or unitized element) and a circular rigid sleeve which react to rotor sideloading while permitting proper rotor orbiting.
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公开(公告)号：USD766991S1
公开(公告)日：2016-09-20
申请号：US29545265
申请日：2015-11-11
Applicant: Roper Pump Company
Designer： Michael Andrew Ingram , Jeffrey Lee Brown
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公开(公告)号：US20210180593A1
公开(公告)日：2021-06-17
申请号：US17120803
申请日：2020-12-14
Applicant: Roper Pump Company
Inventor： Trevor Mark Brasselle , Brian Lee Gerdes , Gregory Richard Ferguson , Cody Richard Reynolds
Abstract: A semi-rigid stator is provided for a helical gear device. The stator includes a stack of rigid rings, a deformable layer, and a rigid housing. Each of the rigid rings has a central opening and an exterior surface. The rigid rings are aligned along a common centerline and rotated slightly relative to each other such that the stack of rigid rings forms a helically convoluted chamber. Each of the rigid rings is secured within the rigid stator housing by the deformable layer disposed between the exterior surface of each of the rigid rings and the rigid housing. The deformable layer bonds the rigid rings together as the ring stack and permits movement of the rigid rings relative to each other.
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Patent Agency Ranking
公开(公告)号：US10968699B2
公开(公告)日：2021-04-06
申请号：US15601193
申请日：2017-05-22
Applicant: Roper Pump Company
Inventor： Tyson Bentley Anderson , Edmond Tate Coghlan , Zachariah Paul Rivard
IPC: F01C1/10 , F03C2/00 , F03C4/00 , F04C2/00 , E21B4/02 , F04C2/107 , F01C21/02 , F04C13/00 , F04C2/08
Abstract: A fluid displacement apparatus includes a stator section with a rotor therein. The stator section includes a cylindrical casing, a helically-convoluted chamber section within the cylindrical casing, and a rigid sleeve within the cylindrical casing and separate from the helically-convoluted chamber section. The rigid sleeve includes a circular internal bore. The rotor is rotatably disposed within the cylindrical casing. The rotor includes a helically-lobed section disposed within the helically-convoluted chamber section, and a circular cylinder section disposed within the rigid sleeve. The circular cylinder section provides a fluid passageway between the rigid sleeve and the circular cylinder section. Side loads from the rotor are distributed along a contact line at any point of rotation of the circular cylinder section within the rigid sleeve.
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公开(公告)号：US20180223598A1
公开(公告)日：2018-08-09
申请号：US15601193
申请日：2017-05-22
Applicant: Roper Pump Company
Inventor： Tyson Bentley Anderson , Edmond Tate Coghlan , Zachariah Paul Rivard
CPC classification number: E21B4/02 , F01C21/02 , F04C2/08 , F04C2/107 , F04C2/1071 , F04C2/1075 , F04C13/008 , F04C2230/10 , F04C2230/23 , F04C2230/60 , F04C2230/80 , F04C2230/90 , F04C2240/50 , F04C2240/56 , F04C2240/60 , F04C2240/605
Abstract: A fluid displacement apparatus includes a stator section with a rotor therein. The stator section includes a cylindrical casing, a helically-convoluted chamber section within the cylindrical casing, and a rigid sleeve within the cylindrical casing and separate from the helically-convoluted chamber section. The rigid sleeve includes a circular internal bore. The rotor is rotatably disposed within the cylindrical casing. The rotor includes a helically-lobed section disposed within the helically-convoluted chamber section, and a circular cylinder section disposed within the rigid sleeve. The circular cylinder section provides a fluid passageway between the rigid sleeve and the circular cylinder section. Side loads from the rotor are distributed along a contact line at any point of rotation of the circular cylinder section within the rigid sleeve.
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公开(公告)号：US11486390B2
公开(公告)日：2022-11-01
申请号：US17234181
申请日：2021-04-19
Applicant: Roper Pump Company
Inventor： Cody Richard Reynolds , Edmond Coghlan, III , Tyson Bentley Anderson
Abstract: A stator segment is provided for a helical gear device. The stator segment includes a stator tube and modular stator inserts. The stator tube has an inner profile with at least two internal sides that extend longitudinally along an interior of the stator tube. The modular stator inserts each have an outer profile that substantially matches and fits within the inner profile of the stator tube. The modular stator inserts also each have an interior helical profile that defines a central opening. The modular stator inserts are configured to be removably inserted longitudinally into the stator tube along the inner profile of the stator tube. The inner profile aligns the modular stator inserts to form a continuous helical chamber and prevents rotation of the modular stator inserts relative to the stator tube.
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公开(公告)号：US11174860B2
公开(公告)日：2021-11-16
申请号：US15939670
申请日：2018-03-29
Applicant: Roper Pump Company
Inventor： Edmond Tate Coghlan , Michael Andrew Ingram , Zachariah Paul Rivard
Abstract: A progressive cavity pump includes at least one of a jacketed stator casing and a jacketed inlet body. The jacketed stator casing includes a stator heating chamber, a stator assembly, and a rotor rotatably disposed within the stator assembly. The stator heating chamber forms a first space around the stator assembly and receives heating fluid therein. The stator assembly includes a cylindrical wall and a stator segment that forms a helically-convoluted chamber within the cylindrical wall. The jacketed inlet body includes an inlet heating chamber and a working fluid chamber in fluid communication with the helically-convoluted chamber. The inlet heating chamber forms a second space around the working fluid chamber and receives heating fluid therein. The stator heating chamber and the inlet heating chamber are isolated from each other, the helically-convoluted chamber, and the working fluid chamber.
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公开(公告)号：US11098589B2
公开(公告)日：2021-08-24
申请号：US16663746
申请日：2019-10-25
Applicant: Roper Pump Company
Inventor： John Eugene Purcell , Tyson Bentley Anderson , Edmond Tate Coghlan
Abstract: A hybrid elastomer/metal on metal motor for a helical gear device includes a rotor and stator comprising a hydraulic motor that produces work when a working fluid is pumped therethrough. The improvement involves the stator being, for part of its length, a conventional or even wall stator, using an elastomer to form a seal against the moving rotor. The stator's remaining length comprises a profiled rigid surface that forms a seal directly with the moving rotor. This gives the motor the high efficiency of the elastomer sealing against the rotor, and simultaneously provides a backup of the stator's rigid section allowing continued motor operation at reduced efficiency, if the elastomer part failed in service. The invention also includes combinations of a regular disk stack with a rubber lining, a rigid material disk stack (or unitized element) and a circular rigid sleeve which react to rotor sideloading while permitting proper rotor orbiting.
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