公开(公告)号：US09776739B2

公开(公告)日：2017-10-03

申请号：US14837736

申请日：2015-08-27

Applicant: VERT Rotors UK Limited

Inventor： Oleg Dmitriev ,  Evgenii Tabota

IPC: F25D23/12 ,  B64G1/00 ,  F04C18/16 ,  F25B1/047 ,  F04C18/107 ,  F25B9/00

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.

公开(公告)号：US20170204727A1

公开(公告)日：2017-07-20

申请号：US15328847

申请日：2015-07-24

Applicant: LONTRA LIMITED

Inventor： Stephen Francis Lindsey

IPC: F01C3/02 ,  F04C3/04

CPC classification number: F01C3/025 ,  F01C3/02 ,  F04C3/04 ,  F04C2250/201

Abstract: A rotor for a rotary piston and cylinder device (1), wherein at least part of an outer surface (30) of the rotor (22) is a substantially frusto-conical shaped surface.

公开(公告)号：US20150369241A1

公开(公告)日：2015-12-24

申请号：US14840886

申请日：2015-08-31

Applicant: NETZSCH Pumpen & Systeme GmbH

Inventor： Eduardo Nuss ,  Arthur Zinke ,  Aluisio Loth ,  Klaus Heizinger ,  Lorenz Lessmann ,  Sérgio Krahn ,  Rui Keunecke ,  Silvio Beneduzzi ,  Egon Weege ,  Nilton André Theilacker ,  Sidney Guedes ,  Petra Lutke ,  Robert Kurz ,  Josef Strassl ,  Johann Kreidl ,  Hisham Kamal ,  Horst Engl ,  George Balcerczyk ,  Matthias Gradl ,  Gunther Herr ,  André Nijmeh

IPC: F04C3/08 ,  F04C15/06 ,  F04C2/16

CPC classification number: F04C3/08 ,  F04C2/165 ,  F04C15/06 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/60 ,  F04C2250/10 ,  F04C2250/201

Abstract: A screw spindle pump for the delivery of fluid media with a pump housing having an inlet channel with a first longitudinal axis, an outlet channel with a second longitudinal axis, a first drive spindle with a third longitudinal axis, and a second driven spindle. The spindles each include a profiled section between the inlet channel and the outlet channel, wherein the profiled sections of the spindles are engaged at least partially with one another and form, with the pump housing between the inlet channel and the outlet channel, a delivery section parallel to the longitudinal axis of the drive spindle with delivery chambers for the fluid medium. The second longitudinal axis of the outlet channel is disposed at an obtuse angle to the delivery section in the pump housing. The invention also relates to a method for operating a screw spindle pump.

Abstract translation: 一种用于输送流体介质的螺杆主轴泵，泵壳体具有带有第一纵向轴线的入口通道，具有第二纵向轴线的出口通道，具有第三纵向轴线的第一驱动轴和第二从动主轴。 主轴每个包括在入口通道和出口通道之间的成型部分，其中主轴的成形部分彼此至少部分地接合，并且在泵壳体在入口通道和出口通道之间形成输送部分 平行于驱动主轴的纵轴与用于流体介质的输送室。 出口通道的第二纵向轴线与泵壳体中的输送部分呈钝角度。 本发明还涉及一种用于操作螺杆主轴泵的方法。

公开(公告)号：US08827669B2

公开(公告)日：2014-09-09

申请号：US12086034

申请日：2006-12-04

Applicant: Michael Henry North ,  Neil Turner ,  Tristan Richard Ghislain Davenne ,  Timothy Charles Draper

Inventor： Michael Henry North ,  Neil Turner ,  Tristan Richard Ghislain Davenne ,  Timothy Charles Draper

IPC: F03C2/00 ,  F03C4/00 ,  F04C18/00 ,  F04C18/16 ,  F04C18/08

CPC classification number: F04C18/16 ,  F04C18/084 ,  F04C2250/201

Abstract: A screw pump includes a stator having a fluid inlet and a fluid outlet, the stator housing first and second externally threaded, tapered rotors mounted on respective shafts and adapted for counter-rotation within the stator to compress fluid passing from the fluid inlet to the fluid outlet, wherein the threads have a pitch that increases towards the fluid outlet.

Abstract translation: 螺杆泵包括具有流体入口和流体出口的定子，定子壳体安装在相应轴上的第一和第二外螺纹锥形转子，并且适于在定子内反向旋转以压缩从流体入口流到流体的流体 出口，其中螺纹具有朝向流体出口增加的螺距。

公开(公告)号：US08602758B2

公开(公告)日：2013-12-10

申请号：US12560674

申请日：2009-09-16

Applicant: Alejandro Juan ,  Curtis Patterson ,  Kristjan Gottfried ,  Soheil Farshchian

Inventor： Alejandro Juan ,  Curtis Patterson ,  Kristjan Gottfried ,  Soheil Farshchian

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

CPC classification number: F01C3/085 ,  F01C1/10 ,  F01C1/107 ,  F01C1/20 ,  F01C21/08 ,  F01C21/10 ,  F02B53/04 ,  F02B53/10 ,  F02B53/12 ,  F02C3/165 ,  F02C5/00 ,  F04C3/085 ,  F04C18/48 ,  F04C2250/201 ,  F05D2250/232

Abstract: An indexing system for a rotor assembly where the indexing system can regulate the rotational location of drive rotors that are configured to rotate about a shaft in one form.

Abstract translation: 用于转子组件的分度系统，其中分度系统可以调节驱动转子的旋转位置，所述转动构件被配置成以一种形式绕轴旋转。

公开(公告)号：US20120034122A1

公开(公告)日：2012-02-09

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: F01C19/06

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：US20110305589A1

公开(公告)日：2011-12-15

申请号：US13203268

申请日：2010-03-02

Applicant: Ralf Daunheimer

Inventor： Ralf Daunheimer

IPC: F01C1/16

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 arc 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）之间的体积（V3，V4，V5。... Vn） 定子（2）和转子（1）相等。

公开(公告)号：US20090214369A1

公开(公告)日：2009-08-27

申请号：US12162150

申请日：2007-01-25

Applicant: Esben Gronborg Brun ,  Soren Hansen ,  Per Hojsgaard Andreasen ,  Helge Grann

Inventor： Esben Gronborg Brun ,  Soren Hansen ,  Per Hojsgaard Andreasen ,  Helge Grann

IPC: F04C2/107

CPC classification number: F04C2/1071 ,  F04C15/0019 ,  F04C2250/201 ,  F05C2203/08

Abstract: The invention relates to an eccentric screw pump with a annular outer part (10; 40; 74) and an inner part (12; 42; 72) arranged therein, the interior of the outer part (10; 40; 74) and the exterior of the inner part (12; 42; 72) tapering in a complementary manner towards an axial end (16; 46; 70). In the axial direction (X, W), the inner part (12; 42; 72) and the outer part (10; 40; 74) are movably received in relation to each other and the inner part (12; 42; 72) and/or the outer part (10; 40; 74) are configured in such a manner that pressure applied to the pressure side of the eccentric screw pump generates a force that acts upon the inner part (12; 42; 72) axially to the direction in which the inner part (12; 42; 72) tapers and/or a force that acts upon the outer part (10; 40; 74) in an opposite axial direction.

Abstract translation: 本发明涉及一种具有环形外部部分（10; 40; 74）和布置在其中的内部部分（12; 42; 72）的偏心螺杆泵，外部部分（10; 40; 74）的内部和外部 所述内部部分（12; 42; 72）以互补的方式朝向轴向端部（16; 46; 70）逐渐变细。 在轴向（X，W）上，内部部分（12; 42; 72）和外部部分（10; 40; 74）相对于彼此可移动地接收，内部部分（12; 42; 72） 和/或所述外部部件（10; 40; 74）构造成使得施加到所述偏心螺杆泵的压力侧的压力产生作用在所述内部部件（12; 42; 72）上的力， 内部部分（12; 42; 72）渐缩的方向和/或在相反的轴向作用在外部部分（10; 40; 74）上的力。

公开(公告)号：US20010024620A1

公开(公告)日：2001-09-27

申请号：US09740085

申请日：2000-12-19

Inventor： Michael Henry North

IPC: F04C018/16

CPC classification number: F04C18/084 ,  F04C18/16 ,  F04C2220/12 ,  F04C2250/201

Abstract: A vacuum pump having a screw mechanism and comprising two externally threaded rotors mounted on respective shafts in a pump body and adapted for counter-rotation therein with intermeshing of the rotor threads with close tolerances between the threads and internal surfaces of the pump body in order that gas may be pumped from a pump inlet to a pump outlet by action of the rotor threads, the root diameter of each rotor increases and the thread diameter of each rotor decreases in a direction from the pump inlet to the pump outlet, and wherein the pitch of the rotor threads decreases in a direction from the pump inlet to the pump outlet.

Abstract translation: 一种真空泵，其具有螺旋机构并且包括两个外螺纹转子，其安装在泵体中的相应轴上并且适于在其中反向旋转，其中转子螺纹与螺纹和泵体的内表面之间的紧公差相互啮合，以便 气体可以通过转子螺纹的作用从泵入口泵送到泵出口，每个转子的根直径增加，并且每个转子的螺纹直径在从泵入口到泵出口的方向上减小，并且其中间距 的转子螺纹在从泵入口到泵出口的方向上减小。

公开(公告)号：US06200116B1

公开(公告)日：2001-03-13

申请号：US09334236

申请日：1999-06-16

Applicant: Nigel Paul Schofield ,  Michael Henry North

Inventor： Nigel Paul Schofield ,  Michael Henry North

IPC: F01C124

CPC classification number: F01C21/02 ,  F04C18/084 ,  F04C18/16 ,  F04C29/0078 ,  F04C2240/50 ,  F04C2250/201

Abstract: A vacuum pump incorporating a screw mechanism section and comprising two externally threaded rotors mounted on respective shafts in a pump body. The externally threaded rotors are adapted for counter-rotation in a first chamber within the pump body with intermeshing of the rotor threads in order to pump gas from a pump inlet by action of the rotors. The root diameter of each rotor increases and the thread diameter of each rotor decreases in a direction from pump inlet and in which the gas is pumped. The two externally threaded rotors are positioned in the pump body by means of shaft bearings located inside cavities in the rotors. The cavities are sealed at the ends closest to the pump inlet.

Abstract translation: 一种包括螺旋机构部分的真空泵，包括安装在泵体内的相应轴上的两个外螺纹转子。 外螺纹转子适于在泵主体内的第一室中进行反向转动，其中转子螺纹相互啮合，以便通过转子的作用从泵入口泵送气体。 每个转子的根直径增加，并且每个转子的螺纹直径在从泵入口的方向上减小，并且其中泵送气体。 两个外螺纹转子通过位于转子内腔内的轴承座定位在泵体内。 空腔在最靠近泵入口的端部密封。