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公开(公告)号：US20210348607A1
公开(公告)日：2021-11-11
申请号：US16869459
申请日：2020-05-07
发明人： Ronald J. Forni
摘要： A magnetic coupling assembly includes a first balancing magnet positioned and surrounding drive magnets and, across a gap, a second balancing magnet and surrounding driven magnets. The drive magnets when rotated drive the driven magnets to rotate. The balancing magnets generate a repulsive force, which counterbalances an attractive force generated by the drive magnets and driven magnets. The assembly may be utilized in a pump for contactless coupling of a motor shaft to a pump shaft. The driven side of the assembly may be hermetically sealed, such as with a liquid crystal polymer boundary interposed in the gap.
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公开(公告)号：US09611852B2
公开(公告)日：2017-04-04
申请号：US13853655
申请日：2013-03-29
发明人： Ronald J. Forni , Scott Driscoll , George Galica
CPC分类号： F04C29/04 , F01C21/10 , F04C18/0215 , F04C29/045 , F04D19/002 , F04D25/08 , F04D27/004
摘要： The main sources of heat in a scroll pump are cooled efficiently by a single cooling fan so that noise and, in particular, fan-generated noise, can be kept low. The scroll pump includes a pump head assembly, a pump motor, a cooling fan that produces a cooling air flow in the pump, a cowling in which the pump head assembly, pump motor and cooling fan are housed and juxtaposed with one another in an axial direction of the pump, and a shroud disposed within the cowling and extending around the pump motor to define a tunnel with the motor and through which the air flow of the cooling fan is directed.
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公开(公告)号：US20150159650A1
公开(公告)日：2015-06-11
申请号：US14102943
申请日：2013-12-11
发明人： Ronald J. Forni
IPC分类号： F04C18/02
CPC分类号： F01C21/02 , F01C1/0215 , F01C19/08 , F04C18/0215 , F04C23/008 , F04C25/02 , F04C27/005 , F04C27/008 , F04C29/0021 , F04C29/0057 , F04C2240/50 , F04C2240/807
摘要： A scroll pump includes a frame, a stationary plate scroll, an orbiting plate scroll, a non-energized type of tip seal or seals, an eccentric drive mechanism assembled to and supported by the frame and to which the orbiting plate scroll is assembled so as to be drivable by the eccentric drive mechanism in an orbit about a longitudinal axis of the pump, and an axial compliance system including a flexure. The flexure is interposed between a bearing of the eccentric drive mechanism and a flexure-locating surface of the eccentric drive mechanism. The flexure allows the orbiting plate scroll to move away from the stationary plate scroll in the case of an assembly process which would otherwise result in the tip seal(s) being too forcefully engaged with the plate of the opposing plate scroll.
摘要翻译： 涡旋泵包括框架，固定板涡旋件，旋转板涡旋件，无通电类型的末端密封件或密封件，组装到框架并由框架支撑并且轨道板涡旋件组装成的偏心驱动机构， 可以通过围绕泵的纵向轴线的轨道中的偏心驱动机构驱动，以及包括挠曲件的轴向顺应性系统。 弯曲部插入在偏心驱动机构的轴承和偏心驱动机构的挠曲定位面之间。 在组装过程的情况下，弯曲允许轨道板卷轴离开固定板涡旋件，否则将导致尖端密封件与相对的板卷轴的板太强制地接合。
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4.发明申请VACUUM PUMP SYSTEM WITH LIGHT GAS PUMPING AND LEAK DETECTION APPARATUS COMPRISING THE SAME 审中-公开具有轻气泵的真空泵系统和包含其的泄漏检测装置公开(公告)号：US20160356273A1
公开(公告)日：2016-12-08
申请号：US14732637
申请日：2015-06-05
发明人： John Calhoun , Ronald J. Forni , Kevin Flynn
CPC分类号： F04C25/02 , F04C18/0215 , F04C18/0261 , F04C23/005 , F04C28/02
摘要： A rough vacuum pump system includes a primary vacuum pump and a secondary vacuum pump. The primary vacuum pump is an oil-free positive displacement pump, and has an inlet opening, an outlet opening, a compression stage between the inlet and outlet openings, and an intermediate gas passageway that connects to a gas flow path running through the compression stage. The secondary vacuum pump is connected to the intermediate gas passageway of the primary vacuum pump. The compression ratio of the primary and secondary vacuum pumps operating in combination is greater than that of the compression ratio of either of the primary and secondary vacuum pumps operating individually. A vacuum apparatus includes a tracer gas detector connected to an inlet of the primary vacuum pump.
摘要翻译： 粗抽真空泵系统包括一次真空泵和二次真空泵。 主真空泵是无油正排量泵，具有入口开口，出口开口，入口和出口之间的压缩级，以及连接到穿过压缩级的气体流路的中间气体通道 。 二次真空泵连接到初级真空泵的中间气体通道。 一次和二次真空泵组合的压缩比大于单独运行的一次和二次真空泵的压缩比。 真空装置包括连接到初级真空泵的入口的示踪气体检测器。
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5.发明授权Scroll pump having bellows providing angular synchronization and back-up system for bellows 有权涡旋泵具有波纹管，为波纹管提供角度同步和后备系统公开(公告)号：US09404491B2
公开(公告)日：2016-08-02
申请号：US13798613
申请日：2013-03-13
发明人： Ronald J. Forni
CPC分类号： F04C2/025 , F01C17/06 , F04C18/0215 , F04C25/02
摘要： A scroll pump has a metallic bellows that angularly synchronizes the stationary and orbiting scroll blades of the pump, and a hack-up system for the bellows. The back-up system consists of pins integral with and fixed relative to one of the stationary and orbital parts of the scroll pump, and a guide part that is integral with and fixed relative to the other of the stationary and orbital parts. The back-up system may be a non-contacting hack-up system in which there is no contact between the pins and guide part during normal operation of the pump. Therefore, no particles are created by a wearing away of such parts which would otherwise have the potential to contaminate the fluid being worked by the pump and reduce the useful life of the pump.
摘要翻译： 涡旋泵具有金属波纹管，其使泵的静止涡旋叶片和绕动涡旋叶片成角度地同步，并且用于波纹管的起重系统。 后备系统包括与涡旋泵的固定和轨道部分之一成一体且固定的销，以及与静止轨道部分和轨道部分中的另一个成一体并固定的引导部分。 备用系统可以是非接触的黑客系统，其中在泵的正常操作期间销和引导部分之间没有接触。 因此，不会由于这种部件的磨损而产生颗粒，否则这些部件可能会污染被泵加工的流体并降低泵的使用寿命。
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公开(公告)号：US20150078927A1
公开(公告)日：2015-03-19
申请号：US14026550
申请日：2013-09-13
发明人： Ronald J. Forni
IPC分类号： F04B25/00
CPC分类号： F04B25/00
摘要： A multi-stage pump includes a pump head having at least two compression stages disposed in series With espect to the direction of flow of fluid through the pump, and a reverse fluid bypass circuit including a fluid passageway through which fluid flowing between upstream and downstream ones of the compression stages can he circulated back upstream of the upstream compression stage. The reverse fluid bypass circuit may restrict or stop the flow of fluid through the fluid passageway as long as the pressure differential across the fluid passage is below a. predetermined value. To this end, the reverse fluid bypass circuit may be configured to restrict the flow of fluid while the fluid is in its transitional or molecular flow regime, and allow the flow of fluid while the fluid is in its viscous flow regime.
摘要翻译： 多级泵包括具有串联设置的至少两个压缩级的泵头，其包括流体通过泵的流动方向，以及包括流体通道的反向流体旁路回路，流体在上游和下游之间流动 的压缩级可以循环回到上游压缩级的上游。 只要跨越流体通道的压差低于a，反向流体旁通回路可以限制或停止通过流体通道的流体流动。 预定值。 为此，反向流体旁通回路可以被配置为在流体处于其过渡或分子流动状态时限制流体的流动，并且允许流体在流体处于其粘性流动状态时流动。
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公开(公告)号：US10208753B2
公开(公告)日：2019-02-19
申请号：US13902533
申请日：2013-05-24
发明人： Ronald J. Forni , Vannie (Yucong) Lu , Arti Desai
摘要： The speed of a cooling fan of a scroll pump is controlled such that fan-generated noise can be kept low. The scroll pump includes a pump head, a pump motor, the fan, a controller and one or more sensors. The pump head includes a plate scroll set in which a tip seal is provided to create a seal between the blade and the opposing plates of the plate scrolls of the set. The speed of the fan is cycled by the controller, and the power draw on the pump motor as a result is checked. These results are used to infer the state of the pump, i.e., to discriminate several different states of the pump from one another, including a state in which a new tip seal is being worn in, and to control the speed of the fan accordingly.
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公开(公告)号：US09982666B2
公开(公告)日：2018-05-29
申请号：US14726404
申请日：2015-05-29
发明人： Ronald J. Forni
IPC分类号： F04B41/06 , F04B43/02 , F04C29/12 , F04C23/00 , F04B23/12 , F04B37/14 , F04C25/02 , F04C18/02
CPC分类号： F04B41/06 , F04B23/12 , F04B37/14 , F04B43/02 , F04C18/0215 , F04C23/005 , F04C23/006 , F04C25/02 , F04C29/126
摘要： A vacuum pump system includes a secondary pumping mechanism incorporated into a stationary portion of a scroll pump. The stationary portion includes the stationary plate scroll of the scroll pump and defines a gas passageway in which the secondary pumping mechanism is disposed. The gas passageway is connected to a gas flow path through the scroll pump at a location upstream of an exhaust check valve of the scroll pump. The secondary pumping mechanism is displaceable within the gas passageway to draw residual gas in the compression stage upstream of the check valve into the gas passageway, and may pump the residual gas back out through the exhaust check valve, to evacuate residual gas from the compression stage.
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公开(公告)号：US09605674B2
公开(公告)日：2017-03-28
申请号：US14140591
申请日：2013-12-26
发明人： Ronald J. Forni , John Calhoun
CPC分类号： F04C18/0215 , F04C25/02 , F04C29/0021 , F04C29/0057
摘要： A vacuum scroll pump has a frame, a stationary plate scroll fixed to the frame, an orbiting plate scroll, an eccentric drive mechanism for driving the orbiting plate scroll, and counterbalancing features by which axial loads produced on the eccentric drive mechanism are offset. Scroll blades of the stationary and orbiting plate scrolls are nested to define pockets which constitute a compression stage between opposing front sides of plates of the stationary and orbiting plate scrolls. The counterbalancing features include an axial counterbalancing chamber defined at a back side of the plate of the orbiting plate scroll, i.e., opposite the side at which the compression stage is provided, and a mechanism by which an intermediate one of the pockets can be placed in communication with the counterbalancing chamber through the plate of the orbiting plate scroll.
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10.发明授权公开(公告)号：US09353749B2
公开(公告)日：2016-05-31
申请号：US13955611
申请日：2013-07-31
发明人： Ronald J. Forni
CPC分类号： F04C27/006 , F01C17/00 , F01C21/102 , F04C18/0215 , F04C27/005 , F04C29/0021
摘要： An orbiting plate scroll of a scroll pump includes an orbiting plate having a first side and a second side, an orbiting scroll blade projecting in an axial direction from the first side of the orbiting plate, and a flexure whose compliance is in the axial direction. The flexure is coupled to the orbiting plate at the second side of the orbiting plate, and couples the orbiting plate and orbiting scroll blade to bearings that allow for free rotation of the orbiting plate scroll about a longitudinal axis, while constraining motion of the orbiting plate scroll in the remaining degrees of freedom.
摘要翻译： 涡旋泵的旋转板涡旋件包括具有第一侧和第二侧的轨道板，从旋转板的第一侧沿轴向突出的绕动涡旋叶片和柔性沿轴向方向。 挠性件在轨道板的第二侧耦合到轨道板，并且将轨道板和绕动涡旋叶片耦合到允许围绕纵向轴线自由旋转的轨道板涡旋的轴承，同时约束轨道板的运动 滚动剩下的自由度。
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