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公开(公告)号：US20240316591A1
公开(公告)日：2024-09-26
申请号：US18577682
申请日：2022-07-05
发明人： Roger Tobler , Marco Sanwald
CPC分类号： B05C11/1026 , F04B53/1075 , F04B53/20
摘要： A dense-phase powder pump for conveying powder-type materials, in particular coating powder, includes at least one powder conveying chamber with a filter element that has at least regions thereof accommodated in a casing body and at least one pinch valve that is or can be connected to an end region of the powder conveying chamber. In particular, the pinch valve includes a valve element with at least regions that are sleeve-like, wherein the peripheral wall thereof can be squeezed together transverse to the valve element longitudinal axis in order to change the through-flow cross-section, and also includes a substantially tubular support structure, in which at least regions of the valve element are accommodated, wherein the support structure consists of multiple shell elements which are arranged one after another around the peripheral wall in the peripheral direction of the peripheral wall of the valve element, each having an arched cross-section, and which are placed on the outside of the valve element in a radial direction relative to the valve element longitudinal axis.
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公开(公告)号：US20170058883A1
公开(公告)日：2017-03-02
申请号：US15245347
申请日：2016-08-24
申请人： Pfeiffer Vacuum GmbH
发明人： Armin CONRAD
CPC分类号： F04B45/047 , F04B35/045 , F04B37/14 , F04B37/16 , F04B41/06 , F04B43/0054 , F04B43/02 , F04B43/023 , F04B43/04 , F04B43/14 , F04B45/041 , F04B49/06 , F04B49/22 , F04B53/1075
摘要： A membrane vacuum pump has at least one working space which is bounded by a membrane deformable to change the size of the working space and by a wall in which at least one inlet and at least one outlet are formed for a medium which is sucked into the working space which increases in size in so doing in a suction phase and is expelled via the outlet from the working space which decreases in size in so doing in a compression phase. The membrane vacuum pump furthermore has a controllable actuator unit for deforming the membrane by a contactless action on the membrane by means of electrical and/or magnetic fields.
摘要翻译： 膜真空泵具有至少一个工作空间，该工作空间由可变形的膜限定，以改变工作空间的尺寸和壁，其中形成至少一个入口和至少一个出口用于介质被吸入 工作空间，其在抽吸阶段中的大小增加，并且经由出口从工作空间排出，其在压缩阶段中的尺寸减小。 膜真空泵还具有可控的致动器单元，用于通过电场和/或磁场通过膜上的非接触作用使膜变形。
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公开(公告)号：US20160052001A1
公开(公告)日：2016-02-25
申请号：US14784157
申请日：2014-04-16
申请人： SAMES TECHNOLOGIES
发明人： Christophe Pravert
CPC分类号： B05B7/1472 , B05B5/047 , F04B53/1075 , F04F5/14 , F04F5/24 , F04F5/46 , F04F5/461 , F04F5/466
摘要： A Venturi pump used for sucking powder from a supply, diluting the same, then feeding it to a gun via a conveyor pipe. The pump comprises an outer body, at least one powder suction duct, at least two air connections, of which a first air connection is capable of supplying an injector to create a vacuum inside the suction duct and a second air connection is capable of supplying a dilution air circuit separate from the powder flow. The pump including at least one powder outlet nozzle centered on an axis of diffusion, the inlet of which is located downstream from the first air connection and the suction duct. At least one protection barrier contains a non-return valve disposed inside the dilution air circuit and at least one outlet tip of the dilution circuit disposed around the nozzle and also connected to the conveyor pipe.
摘要翻译： 文丘里泵用于从供应源吸取粉末，稀释，然后通过输送管将其送入枪。 所述泵包括外体，至少一个粉末吸入管道，至少两个空气连接件，其中第一空气连接件能够供应喷射器以在所述吸入管道内产生真空，并且第二空气连接件能够供应 稀释气回路与粉末流分开。 所述泵包括以扩散轴为中心的至少一个粉末出口喷嘴，其入口位于第一空气连接和吸入管的下游。 至少一个保护屏障包含设置在稀释空气回路内的止回阀和设置在喷嘴周围并且还连接到输送管的稀释回路的至少一个出口端。
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公开(公告)号：US06220835B1
公开(公告)日：2001-04-24
申请号：US09467101
申请日：1999-12-10
IPC分类号： F04B3910
CPC分类号： F04B13/00 , F04B53/1075
摘要： A piston is movable to reciprocate in a chamber. The piston has a transfer check valve which permits condiment flow only in a direction from an inlet side of the chamber to an outlet side of the chamber. The inlet side of the chamber includes an inlet coupled to a condiment source. The outlet side of the chamber includes an outlet with an outlet check valve. When the piston is moved from the outlet side to the inlet side of the chamber, the transfer check valve is open to permit condiment flow from the inlet side to the outlet side of the chamber, and the outlet check valve is closed to accumulate condiment therein. Upon accumulation of a desired amount of condiment in the outlet side of the chamber, the piston is moved from the inlet side to the outlet side of the chamber. During that time, the transfer check valve is closed and the outlet check valve is open to dispense the accumulated condiment in the outlet side of the chamber. At the same time, condiment is flowed into inlet side of the chamber. The amount of condiment transferred to the outlet side of the chamber is determined by the piston stroke, and can be controlled to produce a consistent amount for each cycle of accumulating and dispensing condiment. The cycle is repeated to provide dispensing action with simple portion control. The outlet check valve and transfer check valve may be elastomeric check valves.
摘要翻译： 活塞可移动以在腔室中往复运动。 活塞具有转移止回阀，其允许调味品仅在从室的入口侧到室的出口侧的方向上流动。 室的入口侧包括连接到调味品源的入口。 室的出口侧包括具有出口止回阀的出口。 当活塞从出口侧移动到室的入口侧时，传送止回阀打开以允许调味品从室的入口侧流出到出口侧，并且出口止回阀关闭以在其中积聚调味品 。 当在室的出口侧积聚所需量的调味品时，活塞从室的入口侧移动到出口侧。 在此期间，传送止回阀关闭，出口止回阀打开以分配在室的出口侧的积聚的调味品。 同时，调味品流入腔室的入口侧。 转移到室的出口侧的调味品的量由活塞行程确定，并且可以控制以在每个循环的累积和分配调味品中产生一致的量。 重复循环以提供具有简单部分控制的分配动作。 出口止回阀和转移止回阀可以是弹性止回阀。
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公开(公告)号：US5213487A
公开(公告)日：1993-05-25
申请号：US721935
申请日：1991-06-26
申请人： Nathan Ritchie
发明人： Nathan Ritchie
CPC分类号： F04B39/1086 , F04B39/1033 , F04B53/1075 , Y10T137/7888
摘要： A ring valve assembly for use in a reciprocating type fluid pump with a piston cylinder and a cylinder head is disclosed. The valve assembly includes a ring valve having a fluid seal surface for a selectively closing a fluid passage of a cylinder head and bias means for the ring valve for urging the ring valve in a first direction. The bias means includes the outer peripheral edge region of the ring valve being secured between opposing upper and lower annular surfaces with a predetermined smaller clearance. The upper annular surface includes an outer edge and the lower annular surface includes an inner edge which defines a fulcrum radially inward of the outer edge. The ring valve undergoes first and second stages of deflection during operation, wherein the ring valve is vertically displaced a distance equal to the predetermined small clearance against only one of the upper or lower annular surfaces in the first stage of deflection and the ring valve pivots about the inner edge and deforms into the shape of a cone about the fulcrum in the second stage of deflection. A third stage of deflection is also provided in which the ring valve is restrained between the inner edge and outer edge of the lower and upper annular surfaces, respectively, thereby increasing the stiffness of the intake valve in the third stage of deflection.
摘要翻译： 公开了一种用于具有活塞气缸和气缸盖的往复式流体泵的环形阀组件。 阀组件包括具有流体密封表面的环形阀，用于选择性地关闭气缸盖的流体通道和用于环形阀的偏压装置，用于沿第一方向推动环形阀。 偏压装置包括环形阀的外周缘区域以预定的更小的间隙固定在相对的上下环形表面之间。 上环形表面包括外边缘，下环形表面包括限定外边缘径向内侧的支点的内边缘。 环形阀在操作期间经历第一和第二阶段的偏转，其中环形阀在偏转的第一阶段中相对于仅在上部或下部环形表面中的一个上垂直移位一定距离，该距离等于预定的小间隙，并且环形阀围绕 该内缘在第二偏转阶段中以支点为中心变形为圆锥形。 还提供了第三阶段的偏转，其中环形阀被分别限制在下部和上部环形表面的内边缘和外边缘之间，从而增加进气阀在第三级偏转中的刚度。
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公开(公告)号：US4311437A
公开(公告)日：1982-01-19
申请号：US99478
申请日：1979-12-03
申请人： Georg Liska
发明人： Georg Liska
CPC分类号： F04B1/053 , F04B53/1075
摘要： An annular elastic valve element is deformed under fluid pressure to control flow of fluid from a piston chamber to a pressure chamber of a piston pump by separation from the peripheral wall surface of a valve seat at a location through which a passage bore extends. The valve seat overlies the outer end of the piston and its peripheral wall has reduced diameter portions spaced from the bore to accommodate elastic deformation of the valve element.
摘要翻译： 环形弹性阀元件在流体压力下变形，以通过从通道孔延伸的位置处的阀座的周壁表面分离来控制流体从活塞室流到活塞泵的压力室。 阀座位于活塞的外端，并且其周壁具有与孔隔开的直径减小的部分，以适应阀元件的弹性变形。
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公开(公告)号：US3578020A
公开(公告)日：1971-05-11
申请号：US3578020D
申请日：1968-08-20
发明人： ROCHTE JERRY E , MCDAVID LARRY S
CPC分类号： F16K15/142 , F04B53/1075 , Y10T137/7838 , Y10T137/7889
摘要： A check-type valve assembly in which an annular channel is formed in a valve body. A port is formed in the inner surface of the channel and is closed by an elastic band which is positioned under tension in the channel so as to bear tightly against the inner surface thereof. The elastic band functions as a valve element for controlling the flow of fluid through passages communicating with said port and the annular channel.
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公开(公告)号：US2313284A
公开(公告)日：1943-03-09
申请号：US33634940
申请日：1940-05-21
申请人： VALENTINE WARREN P
发明人： VALENTINE WARREN P
CPC分类号： F04B53/1092 , F04B5/02 , F04B53/1075 , Y10T137/7896
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公开(公告)号：US20230383743A1
公开(公告)日：2023-11-30
申请号：US17826984
申请日：2022-05-27
IPC分类号： F04B53/10
CPC分类号： F04B53/1075 , F04B53/1087
摘要： A valve for a displacement pump includes a valve body having an annular strikeface and defining an annular receptacle, and an annular seal received in the receptacle of the valve body, the seal including an annular contact surface, wherein the seal defines a cumulative displacement ratio of (i) at least one of at most 0.20 at a location that is spaced 40% from an inner diameter (ID) of the contact surface of the seal moving towards an outer diameter (OD) of the contact surface, (ii) at most 0.35 at a location that is spaced 55% from the ID of the contact surface moving towards the OD of the contact surface, and (iii) at most 0.45 at a location that is spaced 65% from the ID of the contact surface moving towards the OD of the contact surface.
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公开(公告)号：US20170227002A1
公开(公告)日：2017-08-10
申请号：US15427903
申请日：2017-02-08
发明人： Ben MIKULSKI , Floyd GUEST , Donald R. LUFT
CPC分类号： F04B53/1075 , F04B9/045 , F04B15/08 , F04B23/00 , F04B37/08 , F04B53/109 , F04B53/143 , F04B53/16 , F04B53/162 , F04B2015/081 , F04B2015/0824
摘要： A header and a pump end for a cryogenic pump are provided for efficient liquid pumping operation. The header directs supplied liquid into a sump and gas into a freeboard. The liquid in the header can be distributed along the header and decanted over a weir to the sump, the liquid being drawn from the sump and up through the vessel to the pump end. Gas in the freeboard is collected for venting or return to the liquid source. Pump head plunger stroke can be lengthened and operated at slower stroke rates using a large cross-sectional area intake and discharge valves. Plunger seals, supported as a seal pack in a sleeve, are field installable over the plunger. A plunger to drive shim arrangement permits filed adjustment of the stroke.
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