公开(公告)号：US12234822B1

公开(公告)日：2025-02-25

申请号：US18371548

申请日：2023-09-22

Applicant: Yaode Yang

Inventor： Yaode Yang

IPC: F04C18/12 ,  F04C18/18 ,  F04C29/00

Abstract: An apparatus has a housing having a prismatic interior chamber with a base of a shape of two partially overlapping circles; a first rotor and a second rotor rotatably fit in the prismatic interior chamber. The first rotor and the second rotor are configured to rotate in the same direction. The first rotor and the second rotor are prismatic in shape and the base of the first rotor has a first circular arc and a second circular arc. The first circular arc and the second circular arc are concentric. The first circular arc has a smaller radius than the second circular arc. The first circular arc and the second circular arc have the same central angle. The apparatus may function as a compressor or a pump.

公开(公告)号：US12180953B2

公开(公告)日：2024-12-31

申请号：US17781515

申请日：2019-12-04

Applicant: Ateliers Busch SA

Inventor： Paul Alers ,  Jeihong Kim ,  Jean-Eric Larcher

IPC: F04B41/06 ,  F04C18/12 ,  F04C18/16 ,  F04C23/00 ,  F04C25/02 ,  F04C28/02 ,  F04C28/24 ,  F04C28/26 ,  F04C18/02 ,  F04C18/18 ,  F04C28/28

Abstract: The present invention relates to a redundant vacuum pumping system (300) and a pumping method using this system, comprising a primary roots pump (302), a first pumping sub-system (310) and a second pumping sub-system (320), wherein the first pumping sub-system (310) and the second pumping sub-system (320) are arranged to pump in parallel the gas evacuated by the primary roots pump (302), the first pumping sub-system (310) comprising a first secondary roots pump (311) and a first positive displacement pump (312) and a first valve (313) positioned between the gas discharge outlet (302b) of the primary roots pump (302) and the gas suction inlet (311a) of the first secondary roots pump (311), and the second pumping sub-system (320) comprising a second secondary roots pump (311) and a second positive displacement pump (312) and a second valve (323) positioned between the gas discharge outlet (302b) of the primary roots pump (302) and the gas suction inlet (321a) of the second secondary roots pump (321). According to the invention, the first pumping sub-system (310) and the second pumping sub-system (320) are configured to pump at a same flow rate, and the primary roots pump (302) is configured to be able to pump at a flow rate F equal to the pumping flow rate of the primary pumping sub-system (310) plus the pumping flow rate of the secondary pumping sub-system (320).

公开(公告)号：US11873813B2

公开(公告)日：2024-01-16

申请号：US17286297

申请日：2019-07-08

Applicant: Hai Nguyen

Inventor： Hai Nguyen

IPC: F04C18/18 ,  F04C18/08 ,  F04C18/14 ,  F04C11/00 ,  F04C2/14 ,  F04C2/16 ,  F04C27/00

CPC classification number: F04C18/18 ,  F04C2/16 ,  F04C27/005 ,  F04C2240/30

Abstract: The present invention relates to highly efficient suction and compression rotating mechanisms, particularly the compression mechanism with piston blocks mounted on two axes and driven by a pair of matching gears in the field of compressors and vacuums or hydraulic system such as oil pump, hydraulic motor, hydraulic gearbox, specifically there is application that uses this mechanism to create one rotary motor with multi compression stages, force-generating stages and continuous fuel burning regime. The new rotary lobe structure in this invention provides a close contact between curved surfaces with the same radius, which is a “Surface-to-surface” contact, with much better tightness than “line” contact.

公开(公告)号：US10006459B2

公开(公告)日：2018-06-26

申请号：US15033158

申请日：2014-11-06

Applicant: ANEST IWATA Corporation

Inventor： Kenichi Kobayashi

IPC: F04B17/00 ,  F04C18/18 ,  F04C23/00 ,  F04C28/24 ,  F04C25/02 ,  F04C28/16 ,  F04C18/12 ,  F04C18/08 ,  F04C29/00 ,  F04C28/10 ,  F04C29/12

CPC classification number: F04C28/24 ,  F04C18/084 ,  F04C18/123 ,  F04C18/18 ,  F04C25/02 ,  F04C28/10 ,  F04C28/16 ,  F04C29/0085 ,  F04C29/12 ,  F04C2210/22 ,  F04C2220/10 ,  F04C2240/20 ,  F04C2240/30 ,  F04C2240/40 ,  F04C2240/811 ,  F04C2250/301 ,  F04C2270/185

Abstract: A claw pump includes: a housing; two rotating shafts which are disposed parallel; a pair of rotors respectively fixed to the two rotating shafts; a rotary drive device driving the pair of rotors; and a suction port and discharge ports formed in a partition wall of the housing. The discharge ports are constituted by a first discharge port and a second discharge port. The first discharge port is formed at a position that communicates with an initial stage compression space formed at an initial stage of a compression stroke in a compression space that is formed by joining a first pocket and a second pocket. The claw pump includes an opening/closing mechanism which opens the first discharge port when a pressure of the initial stage compression space reaches a threshold and closes the first discharge port when the pressure does not reach the threshold.

公开(公告)号：US09732699B2

公开(公告)日：2017-08-15

申请号：US14726100

申请日：2015-05-29

Applicant: Richard H. Vogel

Inventor： Richard H. Vogel

IPC: F04C18/00 ,  F02G1/04 ,  F02G5/00 ,  H02K7/18 ,  F04C23/00 ,  F04C29/12 ,  F04C18/18

CPC classification number: F02G1/04 ,  F02G5/00 ,  F04C18/18 ,  F04C23/001 ,  F04C29/12 ,  H02K7/1823

Abstract: A high efficiency, thermodynamically interactive power system incorporating a “thermodynamic battery” operating in the cryogenic range. The “thermodynamic battery” is drawn upon to optimize the efficiency of power generation during times of peak demand and is “recharged” during periods of low demand. The system is ideally suited for (although not limited to) micropowerplants suitable for widely distributed generation of power in or associated with homes and small businesses, reducing transmission loading on the grid and capable of supplying power into the grid during peak load periods. The widely distributed power generation made practical by present inventions also enables distribution of heating and chill service locally on a much larger scale than is possible with large, centralized generation plants. A novel form of gear pump mechanism makes possible inexpensive and effective multi-stage compression and expansion of gaseous working fluid particularly suitable for incorporation into micropowerplants for distributed and localized power generation.

公开(公告)号：US09074524B2

公开(公告)日：2015-07-07

申请号：US13315799

申请日：2011-12-09

Applicant: William N. Eybergen ,  John G. Walker

Inventor： William N. Eybergen ,  John G. Walker

IPC: F02B33/00 ,  F02B33/44 ,  F01D15/10 ,  F02D29/06 ,  F04C18/16 ,  F04C18/18 ,  F04B17/00 ,  F04B25/00 ,  F02B33/38 ,  F02B39/10 ,  F04D25/06 ,  F04C18/12 ,  H01M8/04 ,  F04C23/00 ,  F04C23/02 ,  F02B29/04

CPC classification number: F02B33/38 ,  F02B29/0475 ,  F02B39/10 ,  F04C18/126 ,  F04C23/001 ,  F04C23/02 ,  F04D25/06 ,  F04D25/0606 ,  H01M8/04089 ,  Y02T10/146

Abstract: An air supply system is provided that uses two sets of rotors on a common set of shafts to boost air in two stages. The air supply system includes a housing and a first and a second rotatable shaft at least partially within the housing. A first and a second pair of rotors are included. Each pair of rotors has a first rotor supported for rotation on the first shaft and a second rotor supported for rotation on the second shaft. The housing has an inlet at the first pair of rotors, an outlet at the second pair of rotors, and an internal chamber between the first and the second pairs of rotors. Air flow from the inlet to the outlet thereby has a first pressure boost from the inlet to the internal chamber and a second pressure boost from the inlet chamber to the outlet.

Abstract translation: 提供一种供气系统，其在两组共轴上使用两组转子，以分两个阶段来提升空气。 空气供应系统包括壳体和至少部分地在壳体内的第一和第二可旋转轴。 包括第一和第二对转子。 每对转子具有第一转子，该第一转子被支撑以在第一轴上旋转，第二转子被支撑以在第二轴上旋转。 壳体在第一对转子处具有入口，在第二对转子处具有出口，并且在第一和第二对转子之间具有内部室。 从入口到出口的空气流从入口到内室具有第一压力升压，并且从入口室到出口的第二压力升高。

公开(公告)号：US20090004039A1

公开(公告)日：2009-01-01

申请号：US12087159

申请日：2006-12-26

Applicant: Tetsushi Ohtsuka ,  Yosinobu Ito

Inventor： Tetsushi Ohtsuka ,  Yosinobu Ito

IPC: F04C29/04 ,  F04C18/18

CPC classification number: F04C18/126 ,  F01C21/007 ,  F04C28/04 ,  F04C29/12 ,  F04C2220/10 ,  F04C2250/101

Abstract: To provide a single stage root type-vacuum pump which can prevent an increase in an installation space while achieving a fine anti-corrosion property, and can shorten discharge time by preventing a drop in a pumping flow rate when pumping by reverse rotation, and to provide a vacuum fluid transport system employing this single stage root type-vacuum pump.A pair of outside air introduction holes (22, 22) is formed in the vicinity of a phantom line (m) in an inner wall surface (6c) within a range between intersecting points (q, q), where the intermediate position (p) is located between the center of a driving side Root type-s rotor shaft (11) and the center of a driven side Root type-s rotor shaft (12) of three-lobe rotors (20, 21), and where the intersecting points (q, q) are the points at which internal circles located on the extended circumferences of the inner wall surface (6c) of the casing (6) intersect with the intermediate position (p). The pair of outside air introduction holes (22, 22) is formed in symmetrical positions into horizontally long slit shapes parallel to a width direction of the casing. Check valves (27) are fitted to tip end portions (26a, 26a) of outside air introduction pipes (26, 26) which are respectively connected to outside air communication holes (24, 24) so as to avoid air from escaping at the time of reverse rotation of the three-lobe rotors (20, 21).

Abstract translation: 提供单级根型真空泵，其可以防止在提供良好的防腐蚀性能的同时增加安装空间，并且可以通过防止通过反向旋转泵送时的泵送流量的下降来缩短放电时间，并且 提供采用这种单级根真空泵的真空流体输送系统。 在相交点（q，q）之间的范围内的内壁面（6c）中的虚线（m）附近形成有一对外部空气导入孔（22,22），其中中间位置 ）位于驱动侧根型转子轴（11）的中心与三叶转子（20,21）的从动侧根型转子轴（12）的中心之间，并且其中交叉 点（q，q）是位于壳体（6）的内壁表面（6c）的延伸圆周上的内圆与中间位置（p）相交的点。 一对外部空气导入孔（22,22）形成为与壳体的宽度方向平行的水平长的狭缝形状的对称位置。 止回阀（27）安装在分别连接到外部空气连通孔（24,24）上的外部空气导入管（26,26）的前端部分（26a，26a）上，以避免空气逸出 所述三叶片转子（20,21）的反转。

公开(公告)号：US20050110446A1

公开(公告)日：2005-05-26

申请号：US10994890

申请日：2004-11-22

Applicant: Masanao Kagami ,  Toshiro Fujii ,  Kazuho Yamada ,  Tatsuyuki Hoshino ,  Takayuki Hirano

Inventor： Masanao Kagami ,  Toshiro Fujii ,  Kazuho Yamada ,  Tatsuyuki Hoshino ,  Takayuki Hirano

IPC: F04C18/18 ,  F04B49/06 ,  F04C18/12 ,  F04C28/06 ,  F04C29/00 ,  H02P1/04

CPC classification number: F04C28/06 ,  F04C18/126 ,  F04C2240/40 ,  F04C2270/19 ,  F04C2270/701

Abstract: A starting system for a pump includes a driving motor, an electric source, a selector switch, a starter sensor, a temperature sensor and a control unit. The selector switch is located between the driving motor and the electric source for reversing polarity of the electric power supplied from the electric source to the driving motor. The starter sensor senses whether or not the driving motor has been started. The temperature sensor senses a temperature. The control unit operates the selector switch so as to repeatedly give the driving motor indications of reverse rotation and normal rotation in a case where the starter sensor does not sense that the driving motor has been started even if the control unit operates the selector switch so as to give the driving motor the indication of normal rotation in a state where the temperature sensed by the temperature sensor is below a preset temperature.

Abstract translation: 泵的启动系统包括驱动电动机，电源，选择开关，起动器传感器，温度传感器和控制单元。 选择开关位于驱动电动机和电源之间，用于使从电源向驱动电动机提供的电力的极性反转。 起动传感器检测驱动电动机是否起动。 温度传感器检测温度。 控制单元操作选择器开关，以便即使控制单元操作选择器开关，起动器传感器也不感觉到驱动电动机已启动的情况下，反复给出驱动电动机的反向旋转和正常转动指示，从而 在温度传感器感测到的温度低于预设温度的状态下给驱动电动机指示正常旋转。

公开(公告)号：US6164945A

公开(公告)日：2000-12-26

申请号：US402805

申请日：2000-01-03

Applicant: Yoshimitsu Ishibashi ,  Katsuaki Usui ,  Satoshi Arai

Inventor： Yoshimitsu Ishibashi ,  Katsuaki Usui ,  Satoshi Arai

IPC: F04C18/18 ,  F01C21/08 ,  F04C18/08 ,  F04C18/12 ,  F10C1/18

CPC classification number: F04C18/126 ,  F04C18/084 ,  Y10T29/49242

Abstract: A rotor has an interior free from invasion of water and is resistant to deformation from applied stresses normally encountered during the operation of a vacuum pump. The rotor comprises a rotor shell formed to conform to an outline of lobes and side-plates for covering transverse ends of the rotor shell. A rotation shaft is secured to the side-plates. A hollow section is formed by the rotor shell and the side-plates which is under a vacuum environment.

Abstract translation: PCT No.PCT / JP99 / 00637 Sec。 371日期2000年1月3日 102（e）日期2000年1月3日PCT提交1999年2月15日PCT公布。 WO99 /​​ 41503 PCT出版物 日期1999年8月19日转子具有不受水侵蚀的内部，并且耐真空泵操作期间通常遇到的施加应力的变形。 转子包括形成为符合用于覆盖转子壳体的横向端部的凸角和侧板的轮廓的转子壳体。 旋转轴固定在侧板上。 中空部分由转子壳体和真空环境下的侧板形成。

公开(公告)号：US5702240A

公开(公告)日：1997-12-30

申请号：US437147

申请日：1995-05-05

Applicant: Alan D. O'Neal ,  Michael D. Stone ,  Carl R. Coles

Inventor： Alan D. O'Neal ,  Michael D. Stone ,  Carl R. Coles

IPC: F04C29/00 ,  F04C29/12 ,  F04C18/18

CPC classification number: F04C29/122 ,  F04C29/0035

Abstract: A rotary positive displacement blower for producing a flow of fluid. The blower includes a housing having a rotor chamber, an inlet port and an outlet port. The outlet port has a first end and a second end and a first edge and a second edge which extend from the first end towards the second end while becoming increasingly spaced apart from one another. A first rotor and a second rotor are located in the rotor chamber. Each rotor includes a plurality of lobes and are each rotatable about a respective axis. Each rotor includes a plurality of pockets adapted to rotate into fluid communication with the inlet port to receive fluid and to rotate into fluid communication with the outlet port to deliver fluid as the rotors rotate. Fluid passages located in the housing extend between the outlet port and the rotor chamber to provide a flow of high pressure fluid from the outlet port to the pockets of the rotors to pre-pressurize the fluid contained therein before each pocket rotates into fluid communication with the outlet port thereby reducing pressure pulsations and resulting noise and vibration.

Abstract translation: 用于产生流体流动的旋转容积式鼓风机。 鼓风机包括具有转子室，入口和出口的壳体。 出口具有第一端和第二端以及从第一端朝向第二端延伸而彼此间隔开的第一边缘和第二边缘。 第一转子和第二转子位于转子室中。 每个转子包括多个叶片，并且各自可绕相应的轴线旋转。 每个转子包括多个凹穴，其适于旋转成与入口端口流体连通以接收流体并且随着转子旋转而旋转成与出口端口流体连通以输送流体。 位于壳体中的流体通道在出口和转子室之间延伸，以提供高压流体从出口到转子的口袋的流动，以在每个口袋旋转成与 出口端口，从而减少压力脉动并产生噪音和振动。