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公开(公告)号：US6102684A
公开(公告)日：2000-08-15
申请号：US152779
申请日：1998-09-14
申请人： Charles H. Tuckey
发明人： Charles H. Tuckey
摘要： A positive displacement gear rotor fuel pump with a plurality of spaced apart outlet ports through which fuel is discharged from a fuel pumping assembly and a valve which prevents any fuel downstream of the outlet ports which is at outlet pressure, from reentering portions of the pumping assembly which are at a lower pressure to prevent the higher pressure fuel from rapidly compressing and collapsing the fuel vapor in the pumping assembly to greatly reduce the noise of the operating fuel pump. This reduces the magnitude of the cavitation noise in the fuel pump which is the noise caused by the collapsing of the fuel vapor in the pump. The outlet ports are also constructed and arranged to prevent adjacent pumping chambers of the pumping assembly from communicating with each other to prevent the fuel at an increased pressure in a downstream pumping chamber from flowing into a lower pressure pumping chamber upstream thereof to also reduce cavitation noise in the fuel pump.
摘要翻译： 正排量齿轮转子燃料泵，其具有多个间隔开的出口，燃料从燃料泵送组件排出，阀阻止出口压力下游出口压力的任何燃料，重新输入泵送组件的部分 它们处于较低的压力下，以防止较高压力的燃料快速压缩和坍缩泵送组件中的燃料蒸汽，以大大降低操作燃料泵的噪音。 这降低了燃料泵中的空化噪声的大小，其是由泵中的燃料蒸汽塌缩引起的噪声。 出口端口还构造和布置成防止泵送组件的相邻泵送室彼此连通，以防止下游泵送室中的增加的压力下的燃料流入其上游的较低压力泵送室，以减少气蚀噪声 在燃油泵。
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公开(公告)号：US5842837A
公开(公告)日：1998-12-01
申请号：US703878
申请日：1996-08-27
申请人： Hideki Nakayoshi , Naoki Oogushi
发明人： Hideki Nakayoshi , Naoki Oogushi
CPC分类号： F04C15/062 , F04C11/001
摘要： A tandem pump apparatus is featured having a main suction passage connected to a fluid source. The main suction passage branches into first and second suction passages which, in turn, feed into first and second pumps. Each pump discharges a portion of the fluid to a return passage that is fluidly connected to the suction port of each respective pump. In each return passage, a return control valve is disposed to control the amount of fluid returned to the suction port. The tandem pump featured in this invention exhibits increased efficiency and decreased noise.
摘要翻译： 串联泵装置具有连接到流体源的主吸入通道。 主吸入通道分支进入第一和第二抽吸通道，进入第一和第二泵。 每个泵将一部分流体排放到流体连接到每个相应泵的吸入口的返回通道。 在每个返回通道中，设置有返回控制阀以控制返回到吸入口的流体的量。 本发明特征的串联泵表现出增加的效率和降低的噪音。
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公开(公告)号：US5120201A
公开(公告)日：1992-06-09
申请号：US628369
申请日：1990-12-17
CPC分类号： F02M37/08 , F02D41/3082 , F02D2200/0602 , F02D2250/31 , F02M2037/087
摘要： A self-contained brushless electric-motor fuel pump for internal combustion engine fuel delivery systems and like applications in accordance with the present invention comprises a housing having a fuel inlet and fuel outlet, and a brushless electric motor with a permanent magnet armature mounted for rotation within the housing and stator windings surrounding the armature within the housing. A pump mechanism is positioned between the fuel inlet and outlet, and is coupled to the armature for corotation with the armature within the housing to pump fuel under pressure from the inlet to the outlet. A pressure sensor is operatively coupled to the fuel outlet within the housing for providing an electrical pressure signal as a function of fuel pressure at the outlet. Pump motor control electronics within the housing includes circuitry for comparing the pressure signal from the pressure sensor to a pump drive reference signal, and providing an error signal as a function of a difference therebetween. Drive current is applied to the stator windings of the motor as a function of such error signal.
摘要翻译： 用于根据本发明的用于内燃机燃料输送系统和类似应用的独立的无刷电动机燃料泵包括具有燃料入口和燃料出口的壳体和具有永磁电枢的无刷电动机， 在围绕壳体内的电枢的外壳和定子绕组内。 泵机构定位在燃料入口和出口之间，并且联接到衔铁，用于与壳体内的电枢一起旋转，以在从入口到出口的压力下泵送燃料。 压力传感器可操作地联接到壳体内的燃料出口，用于提供作为出口处的燃料压力的函数的电压信号。 外壳内的泵电机控制电子装置包括用于将来自压力传感器的压力信号与泵驱动参考信号进行比较的电路，并且提供作为它们之间的差的函数的误差信号。 作为这种误差信号的函数，驱动电流被施加到电动机的定子绕组。
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公开(公告)号：US5087177A
公开(公告)日：1992-02-11
申请号：US589045
申请日：1990-09-27
申请人： William J. Haley , Glenn E. Swanson
发明人： William J. Haley , Glenn E. Swanson
CPC分类号： F04C14/26 , F04C14/02 , F16H61/0025
摘要： A dual capacity pump having at least two gear pump stages with a common fluid inlet passage, each pump stage having a discharge port, the discharge port for one stage communicating with a fluid pressure load through a flow delivery passage and the discharge port for the other stage communicating with the flow delivery passage through a one-way flow valve, and flow control valve means responsive to an operating variable for connecting the discharge side of the other stage to the common fluid inlet passage during operation in a first operating range of low driving speeds for the pump and to said flow delivery passage through the one-way flow valve during operation in a calibrated range of values for the operating variable.
摘要翻译： 一种双容量泵，具有至少两个具有公共流体入口通道的齿轮泵级，每个泵级具有排放口，一级排放口与流体压力负载通过流动输送通道连通，另一端的排放口用于另一级 通过单向流量阀与流量输送通道连通;以及流量控制阀装置，其响应于在低驱动的第一操作范围内的操作期间将另一级的排放侧连接到公共流体入口通道的操作变量 在操作期间，在操作变量的值的校准范围内，泵和通过单向流量阀的所述流量输送通道的速度。
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公开(公告)号：US4580953A
公开(公告)日：1986-04-08
申请号：US632834
申请日：1984-07-20
CPC分类号： F04C15/062 , F04C14/24
摘要： A screw pump of the kind including a screw array consisting of a central screw (1) with convex flanks and one or more side screws (2) with concave flanks, the threads being formed such that coacting screws seal against each other with the screw array being sealingly surrounded by a screw housing (3), so that at least one closed chamber is formed by the sides and roots of the threads as well as the screw housing, the chamber migrating axially from the inlet end of the screw array to its outlet end when the screws are turned, and is in communication at least during a portion of its migration with a pressure fluid source (9) via at least one duct (14) made in the pump. To prevent the occurrence of, and to eliminate, existing air and gas bubbles in the liquid chamber without efficiency being unnecessarily deteriorated, the pump is provided with a regulating device (15) coacting with the duct for adjusting the quantity of liquid flowing to the chamber from the pressure fluid source.
摘要翻译： 一种螺旋泵，其包括由具有凸面的中心螺钉（1）和具有凹面的侧面螺钉（2）组成的螺杆阵列，所述螺纹形成为使得共同作用螺钉彼此用螺钉阵列密封 被螺钉壳体（3）密封地围绕，使得至少一个闭合腔室由螺纹的侧面和根部以及螺钉壳体形成，该腔室从螺杆阵列的入口端轴向移动到其出口 当螺杆转动时，至少在通过在泵中制造的至少一个管道（14）的压力流体源（9）迁移的一部分期间至少连通。 为了防止发生和消除液体室中现有的空气和气泡，其效率不必要地恶化，泵设置有与管道共同作用的调节装置（15），用于调节流到腔室的液体的量 从压力流体源。
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公开(公告)号：US4420290A
公开(公告)日：1983-12-13
申请号：US261645
申请日：1981-05-07
申请人： Gilbert H. Drutchas
发明人： Gilbert H. Drutchas
IPC分类号： F04C14/26 , B62D5/06 , B62D5/10 , F04B1/10 , F04B49/02 , F04B49/08 , F04C2/067 , F04C2/344 , F04C2/356 , F04C13/00 , F04C14/24 , F04C15/00
CPC分类号： F04C14/265
摘要： A pump includes a rotor, a cam encircling said rotor and means for effecting relative rotation of the cam and rotor about an axis. A plurality of vanes are carried by the rotor and engage the cam to define pumping pockets which expand and contract on rotation of the rotor. A cheek plate is movable along the rotational axis to communicate expanding and contracting pumping pockets. There is a cavity on one side of the cheek plate, and a fluid passage conducts fluid pressure into the cavity which fluid pressure biases the cheek plate into a position blocking the flow of fluid from the contracting pumping pockets to the expanding pumping pockets. The pump also includes a servo valve for venting the pressure in the cavity to thereby control the flow of fluid between the contracting and expanding pumping pockets. A fluid passage in the cheek plate receives flow from the contracting pockets. The passage has a portion directing flow from the contracting pumping pockets radially inwardly of the cheek plate. A tubular member is fixedly attached to the cheek plate coaxially with the axis of relative rotation of the rotor, and the interior of the tubular member communicates with the portion of the fluid passage directing flow radially inwardly.
摘要翻译： 泵包括转子，围绕所述转子的凸轮和用于实现凸轮和转子围绕轴的相对旋转的装置。 多个叶片由转子承载并接合凸轮以限定在转子旋转时膨胀和收缩的泵送袋。 颊板可以沿着旋转轴线移动以连通膨胀和收缩的抽吸口袋。 在脸颊板的一侧上有一个空腔，一个流体通道将流体压力传导到空腔中，流体压力将面颊板偏压到一个位置，阻止流体从收缩抽吸口流到膨胀的抽吸口。 泵还包括用于排出空腔中的压力的伺服阀，从而控制收缩和膨胀的泵送袋之间的流体流动。 颊板中的流体通道从收缩口中接收流。 该通道具有一部分引导从颊板径向向内的收缩抽吸口的流动。 管状构件与转子的相对旋转轴线同轴地附接到颊板，并且管状构件的内部与径向向内引导流体的流体通道的部分连通。
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公开(公告)号：US4339007A
公开(公告)日：1982-07-13
申请号：US172128
申请日：1980-07-25
申请人： Wallace Clark
发明人： Wallace Clark
摘要： There is disclosed a control system for a hydraulic down-hole earth drilling motor of the helical gear pair type to control the pressure drop of the fluid through the motor so that it does not become excessive. A housing is provided defining a chamber, one end of the housing being secured to the outer member housing of the motor. Valve means and pressure controlling means are positioned in the chamber. Linkage means positioned within the chamber joins the valve means pressure controlling means and the upper end of the inner member of the motor. In operation the inner member of the motor may be caused to operate the valve means to control the fluid flow and therefore the pressure drop through the motor in order to protect the motor from overload. A further embodiment of the invention corrects an additional problem in down-hole motors resulting from the back flow when the drilling is stopped for any reason.
摘要翻译： 公开了一种用于控制通过电动机的流体的压降使得其不会变得过大的斜齿轮对的液压井下钻井马达的控制系统。 提供限定腔室的壳体，壳体的一端固定到马达的外部构件壳体上。 阀装置和压力控制装置位于腔室中。 定位在室内的连接装置与阀装置压力控制装置和电动机内部构件的上端连接。 在操作中，可以使马达的内部构件操作阀装置以控制流体流动，并因此控制马达的压力降，以保护马达免受过载。 本发明的另一实施例在由于任何原因停止钻孔时，校正了由回流引起的井下电动机中的另外的问题。
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公开(公告)号：US3366070A
公开(公告)日：1968-01-30
申请号：US61224767
申请日：1967-01-27
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公开(公告)号：US2974600A
公开(公告)日：1961-03-14
申请号：US57911756
申请日：1956-04-18
申请人： RYSTROM CHARLES H
发明人： RYSTROM CHARLES H
CPC分类号： F04C14/24 , F04C14/02 , Y10T137/86139
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公开(公告)号：US2633806A
公开(公告)日：1953-04-07
申请号：US72743147
申请日：1947-02-08
申请人： PERKINS FRANK M
发明人： PERKINS FRANK M
IPC分类号： F04C14/08 , F04C14/18 , F04C14/24 , F16H61/40 , F16H61/4035 , F16H61/46 , F16H61/465
CPC分类号： F04C14/185 , F04C14/08 , F04C14/24 , F16H61/4035 , F16H61/46 , F16H61/465
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