公开(公告)号：US20180216468A1

公开(公告)日：2018-08-02

申请号：US15748825

申请日：2015-10-14

Applicant: GARDNER DENVER NASH LLC

Inventor： Wilson Fabián GAIBOR ,  Giovanni ZAZA ,  Emanuele ROTTA

IPC: F01D5/14 ,  F04C19/00 ,  F04D17/18

CPC classification number: F01D5/141 ,  F04C19/00 ,  F04C19/008 ,  F04C23/001 ,  F04C25/02 ,  F04C2240/20 ,  F04C2250/20 ,  F04C2250/201 ,  F04D17/18 ,  F05B2250/184 ,  F05B2250/71

Abstract: A liquid ring pump includes a stationary housing that defines an inner space, and a drive shaft rotatably mounted within the stationary housing. The drive shaft defines a rotational axis. An impeller includes a plurality of blades extending radially outward with respect to the rotational axis, and each blade includes a root and a tip, wherein a continuous curve extends from the tip of each blade through the root of the blade and intersects with the rotational axis.

公开(公告)号：US09695835B2

公开(公告)日：2017-07-04

申请号：US13962008

申请日：2013-08-08

Applicant: Austin Wade Mueller

Inventor： Austin Wade Mueller

IPC: F04C19/00 ,  F04D29/18 ,  F04D5/00 ,  F01C21/08 ,  F04D9/02

CPC classification number: F04D29/188 ,  F01C21/08 ,  F04C19/007 ,  F04C2210/1044 ,  F04C2210/24 ,  F04C2250/201 ,  F04D5/002 ,  F04D9/02

Abstract: A liquid ring pump is provided. The liquid ring pump is designed to reduce the overall envelop of the ring pump. The liquid ring pump includes a housing and an impeller. The housing defines an impeller cavity. The impeller cavity has an inlet port and a discharge port. The impeller is positioned within the impeller cavity for rotation about a central rotational axis. The impeller includes a central hub defining a conical outer surface and a plurality of angularly spaced apart main vanes extending radially outward from the conical outer surface relative to the central rotational axis. The inlet and discharge ports may be located on a same side of the impeller housing.

公开(公告)号：US20170059211A1

公开(公告)日：2017-03-02

申请号：US14837736

申请日：2015-08-27

Applicant: VERT Rotors UK Limited

Inventor： Oleg Dmitriev ,  Evgenii Tabota

IPC: F25B9/00 ,  F25B9/06 ,  F25B31/02

CPC classification number: B64G1/00 ,  F04C18/107 ,  F04C18/16 ,  F04C2250/201 ,  F25B1/047 ,  F25B9/006 ,  F25B2500/01 ,  F25B2500/13

Abstract: A system for cryocooling an optical sensor on a satellite to a temperature below 200K with minimal vibration comprising a miniature conical rotary screw compressor comprising an inner element configured to only rotate around a first stationary axis and an outer element configured to only rotate around a second stationary axis so that both elements revolve with minimal vibration; with at least one of a) a length of at least one of the inner element and the outer element is between 10 mm and 50 mm; b) a diameter of at least one of the inner element and the outer element is between 2 mm and 25 mm; c) a compression ratio of the rotary screw compressor is between 1:2 and 1:20; and d) a shaft speed of the conical rotary screw compressor is between 6001 and 20000 revolutions per minute.

Abstract translation: 一种用于将卫星上的光学传感器低温冷却到低于200K的温度并且具有最小的振动的系统，其包括微型锥形旋转螺杆式压缩机，该微型锥形旋转螺杆式压缩机包括构造成仅围绕第一固定轴线旋转的内部元件和构造成仅围绕第二静止 使得两个元件以最小的振动旋转; 其中a）至少一个内部元件和外部元件的长度中的至少一个在10mm和50mm之间; b）内部元件和外部元件中的至少一个的直径在2mm和25mm之间; c）旋转螺杆式压缩机的压缩比为1:2至1:20; 和d）锥形旋转螺杆式压缩机的轴速度在6001-20000转/分钟之间。

公开(公告)号：US09175681B2

公开(公告)日：2015-11-03

申请号：US13265510

申请日：2010-04-21

Applicant: Richard Paul Hayes-Pankhurst ,  Peter William Ross

Inventor： Richard Paul Hayes-Pankhurst ,  Peter William Ross

IPC: F01C19/04 ,  F04C15/00 ,  F01C5/04 ,  F01C19/00 ,  F04C5/00 ,  F04C2/22

CPC classification number: F04C15/00 ,  F01C5/04 ,  F01C19/005 ,  F04C2/22 ,  F04C5/00 ,  F04C15/0015 ,  F04C2240/30 ,  F04C2250/201

Abstract: A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor.

Abstract translation: 泵包括壳体，其具有限定转子路径的内部，在所述壳体中在所述转子路径上的第一位置处形成的入口，在所述转子路径上与所述第一位置间隔开的第二位置处形成在所述壳体中的出口。 转子可以在壳体中旋转，其中第一表面密封住壳体。 第二表面形成在所述转子上，与所述第一表面周向间隔开，并形成围绕所述转子路径行进的腔室，以将流体从入口传送到出口。 与壳体形成的弹性密封件位于转子路径上，以防止流体从所述出口流到所述入口经过密封件。 可以提供通道以将流体以用于将密封件推向转子的压力提供给密封件的下表面。

公开(公告)号：US09109595B2

公开(公告)日：2015-08-18

申请号：US13203268

申请日：2010-03-02

Applicant: Ralf Daunheimer

Inventor： Ralf Daunheimer

IPC: F01C1/16 ,  F04C2/107

CPC classification number: F04C2/1071 ,  F04C2230/91 ,  F04C2240/10 ,  F04C2240/20 ,  F04C2250/201

Abstract: The invention relates to an eccentric screw pump (100), in particular for conveying viscous, highly viscous and abrasive media, having a longitudinal direction L, having a conical, helically wound, at least single-start rotor (1) having a gradient h, having at least one eccentricity (e1, e2, e3, . . . en) and at least one cross-section d that is rotatably arranged in a single or multi-start conical stator (2) wherein a plurality of chambers (3, 4, 5 . . . n) each having a volume (V3, V4, V5 . . . Vn) is formed between the rotor (1) and stator (2) that serve to convey the medium and wherein the chambers (3, 4, 5 . . . n) between the stator and the rotor are limited by a sealing line D. The volumes (V3, V4, V5 . . . Vn) of each individual chamber (3, 4, 5 . . . n) between the stator (2) and the rotor (1) are equal.

Abstract translation: 本发明涉及一种偏心螺杆泵（100），特别是用于输送具有纵向方向L的粘性，高粘度和研磨介质，其具有圆锥形螺旋缠绕的至少单启动转子（1），其具有梯度h 具有至少一个偏心（e1，e2，e3，...）和至少一个可旋转地布置在单启动或多启动锥形定子（2）中的横截面d，其中多个室（3， 在转子（1）和定子（2）之间形成有用于输送介质的体积（V3，V4，V5 ... Vn）的各个（4,5）...， 定子和转子之间的距离，5 ...，n）由密封线D限制。每个单独的腔室（3,4,5 ... n）的体积（V3，V4，V5。... Vn） 定子（2）和转子（1）相等。

公开(公告)号：US08337184B2

公开(公告)日：2012-12-25

申请号：US12599701

申请日：2008-05-12

Applicant: Mohammod Anwar Hossain ,  Kaname Ohtsuka ,  Masanori Masuda

Inventor： Mohammod Anwar Hossain ,  Kaname Ohtsuka ,  Masanori Masuda

IPC: F03C4/00 ,  F04C2/00 ,  F04C18/00

CPC classification number: F04C18/084 ,  F04C18/16 ,  F04C18/52 ,  F04C28/10 ,  F04C29/0021 ,  F04C2250/201 ,  F04C2270/044

Abstract: A single screw compressor structure includes a screw rotor and a casing. The screw rotor has a plurality of helical grooves formed in an outer peripheral surface thereof. The casing houses the screw rotor. The screw rotor includes a main tapered portion having a tapered outer diameter that becomes larger from an intake side toward a discharge side of the screw rotor, and a reversely tapered portion that is located on a downstream side of a maximum outer diameter portion of the outer surface and on the discharge side of the main tapered portion. The reversely tapered portion has a reversely tapered outer diameter that becomes smaller as the reversely tapered portion extends away from the maximum outer diameter portion.

Abstract translation: 单螺杆压缩机结构包括螺杆转子和壳体。 螺杆转子在其外周面形成有多个螺旋槽。 外壳容纳螺旋转子。 所述螺杆转子包括从所述螺杆转子的吸入侧朝向排出侧变大的锥形外径的主锥形部，以及位于所述螺旋转子的最大外径部的下游侧的倒锥部 表面和主锥形部分的排出侧。 反锥形部分具有倒锥形外径，随着反锥形部分从最大外径部分延伸而变小。

公开(公告)号：US08308459B2

公开(公告)日：2012-11-13

申请号：US12740731

申请日：2008-09-25

Applicant: Helge Grann ,  Sebastien D'Antonio

Inventor： Helge Grann ,  Sebastien D'Antonio

IPC: F01C1/10 ,  F03C2/00 ,  F03C4/00 ,  F04C2/00

CPC classification number: F04C2/1071 ,  F04C2250/201

Abstract: A Moineau pump or Moineau compressor includes a conically designed inner (4) and a conically designed outer (8) element, whose longitudinal axes (X1, X2) run at an angle to one another and intersect at a point. The pump or compressor has at least two sections (2a, 2b, 2c, 2d) in the axial direction. A part (4b) of the inner element (4) located in a second section (2b) is arranged rotated with respect to a part (4a) of the inner element located in a first section (2a) about the longitudinal axis (X1) of the inner element (4). A part (8b) of the outer element (8) located in the second section (2b) is arranged rotated with respect to an other part (8a) of the outer element (8) located in the first section (2a) about the longitudinal axis (X2) of the outer element (8).

Abstract translation: Moineau泵或Moineau压缩机包括锥形设计的内部（4）和圆锥形设计的外部（8）元件，其纵向轴线（X1，X2）彼此成角度地相交并且在一个点处相交。 泵或压缩机在轴向具有至少两个部分（2a，2b，2c，2d）。 位于第二部分（2b）中的内部元件（4）的部分（4b）相对于围绕纵向轴线（X1）位于第一部分（2a）中的内部元件的部分（4a）旋转， 的内部元件（4）。 位于第二部分（2b）中的外部元件（8）的部分（8b）相对于位于第一部分（2a）中的外部元件（8）的另一部分（8a）围绕纵向 轴线（X2）。

公开(公告)号：US20070196228A1

公开(公告)日：2007-08-23

申请号：US10578546

申请日：2004-11-04

Applicant: Clive Marcus Tunna ,  Allan McDiarmid ,  Mark Tomkins

Inventor： Clive Marcus Tunna ,  Allan McDiarmid ,  Mark Tomkins

IPC: F01C1/16 ,  F01C1/24 ,  F01C1/08

CPC classification number: F04C29/0028 ,  F04C18/16 ,  F04C29/0092 ,  F04C2220/12 ,  F04C2250/201 ,  F04C2270/17

Abstract: A screw pump comprises a pair of rotors (92, 94) each carrying an external screw thread (96, 98), the pair of rotors being rotatably mounted in a stator (72) and arranged such that, in operation, the screw threads of the rotors intermesh as the rotors rotate in opposing directions. Means (100, 102) are provided for actively controlling the axial position of the rotors within the stator during use of the pump.

Abstract translation: 螺杆泵包括一对转子（92,94），每个转子承载外螺纹（96,98），所述一对转子可旋转地安装在定子（72）中，并且布置成使得在操作中螺杆 当转子相反的方向旋转时，转子相互啮合。 提供装置（100,102）用于在泵的使用期间主动地控制定子内的转子的轴向位置。

公开(公告)号：US07131826B1

公开(公告)日：2006-11-07

申请号：US10719605

申请日：2003-11-21

Applicant: Mitchell A. Friedman

Inventor： Mitchell A. Friedman

IPC: F03C2/00 ,  F04C2/00

CPC classification number: F04C11/003 ,  B01F3/04099 ,  B01F3/04787 ,  B01F15/005 ,  B01F15/0416 ,  B01F2003/04907 ,  B01F2015/0221 ,  F04C11/006 ,  F04C13/00 ,  F04C2250/201 ,  G05D11/008

Abstract: A blending pump assembly for accurately maintaining the proper ratio of two fluid components. Flow of a first fluid is utilized to drive a fluid motor, which in turn drives a pumping mechanism to inject a proportional amount of a second fluid into the flow of the first fluid. The fluid motor and pump are sized so that a predetermined ratio between the two fluids is maintained regardless of changes in pressure and flow rate of such first fluid.

公开(公告)号：US4863357A

公开(公告)日：1989-09-05

申请号：US249570

申请日：1988-09-14

Applicant: Hans Olofsson

Inventor： Hans Olofsson

IPC: F04C18/107 ,  F01C1/107 ,  F04C20060101

CPC classification number: F01C1/107 ,  F04C2250/201

Abstract: Rotary positive displacement machine for a compressible working fluid comprising two tapered, internally intermeshing members (26, 28) with eccentric axes (48, 50). The members (26, 28) have spiral grooves (34, 38) and intervening lands (36, 40) which cooperate to form closed chambers (66) varying in volume while moving axially from one end to the other. The inner member (28) has a hypocyclic movement in relation to the outer member (26). The radial depth of the grooves (34, 38) varies axially along the members (26, 28) and in each transverse plane is equal to twice the eccentricity of the axes (48, 50) of the members (26, 28) and the pitch angle of the spiral at the pitch cone varies continuously in the axial direction.

Abstract translation: PCT No.PCT / SE87 / 00203 Sec。 371日期：1988年9月14日 102（e）日期1988年9月14日PCT提交1987年4月21日PCT公布。 公开号WO87 / 06654 日期：1987年11月5日。用于可压缩工作流体的旋转容积式容器包括具有偏心轴（48,50）的两个锥形的内啮合构件（26,28）。 构件（26,28）具有螺旋槽（34,38）和中间平台（36,40），它们协作以形成在从一端轴向移动到另一端的同时体积变化的闭合腔室（66）。 内部构件（28）相对于外部构件（26）具有低速运动。 凹槽（34,38）的径向深度沿着构件（26,28）轴向变化，并且在每个横向平面中等于构件（26,28）的轴线（48,50）的偏心率的两倍和 俯仰角处的螺旋的俯仰角在轴向上连续变化。