公开(公告)号：US20240117805A1

公开(公告)日：2024-04-11

申请号：US18264618

申请日：2022-01-17

Applicant: MIXTRON S.R.L.

Inventor： Stefano BREVINI

IPC: F04B53/16 ,  F04B1/145

CPC classification number: F04B53/164 ,  F04B1/145

Abstract: A piston pump (1) is described for pumping a liquid comprising: a head (10) wherein at least a cylinder (15) is obtained, a piston (45) slidably inserted in the cylinder, a first sealing annular gasket (60) which circumferentially sealingly contacts the piston (45), a second sealing annular gasket (80) which circumferentially sealingly contacts the piston, and an annular body (100) which circumferentially encloses the piston (45) and is at least partially accommodated in a housing seat (110) obtained in the head (10) in a portion of the cylinder (15). Said annular body (100) comprises: a first housing seat (150) wherein the first sealing annular gasket (60) is housed, a second housing seat (155) wherein the second sealing annular gasket (80) is housed, and a third housing seat (185) wherein a third sealing annular gasket (190) is housed, which is placed between the annular body (100) and the housing seat (110) of the annular body.

公开(公告)号：US20230271204A1

公开(公告)日：2023-08-31

申请号：US18144991

申请日：2023-05-09

Applicant: Graco Minnesota Inc.

Inventor： David J. Thompson ,  Jerry D. Horning ,  William M. Blenkush ,  Eric J. Finstad ,  Bradley H. Hines ,  Marius J. Luczak ,  Diane Olson ,  Philip K. Snider ,  Harold D. Johnson ,  Jimmy Wing Sum Tam

IPC: B05B9/04 ,  F04B17/06 ,  B05B9/01 ,  F04B1/145 ,  B05B9/08 ,  F04B23/02 ,  F04B1/02 ,  F04B1/14 ,  F04B17/03 ,  F04B9/04 ,  B05B9/043 ,  F04B53/16

CPC classification number: B05B9/0413 ,  F04B17/06 ,  B05B9/01 ,  F04B1/145 ,  B05B9/0894 ,  F04B23/02 ,  F04B1/02 ,  B05B9/0416 ,  F04B1/14 ,  F04B17/03 ,  F04B9/045 ,  B05B9/0866 ,  B05B9/043 ,  B05B9/0861 ,  F04B53/16 ,  B05B9/0888

Abstract: A fluid dispensing device includes a housing and a reciprocating piston fluid pump coupled to the housing. The reciprocating piston fluid pump includes a piston. The piston is configured to pressurize at least one pumping chamber. A motor is connected to the reciprocating piston fluid pump to actuate the piston. A spray tip connected to an outlet of the at least one pumping chamber.

公开(公告)号：US09803634B2

公开(公告)日：2017-10-31

申请号：US14478180

申请日：2014-09-05

Applicant: Caterpillar Inc.

Inventor： Michael P. May

IPC: F04B49/22 ,  F04B1/12 ,  F04B1/14 ,  F04B1/29 ,  F04B53/10 ,  F16K3/02 ,  F16K3/08 ,  F16K3/316 ,  F16K3/34 ,  F04B1/30 ,  F04B1/20

CPC classification number: F04B49/225 ,  F04B1/124 ,  F04B1/143 ,  F04B1/145 ,  F04B1/148 ,  F04B1/2042 ,  F04B1/295 ,  F04B1/303 ,  F04B53/10 ,  F16K3/029 ,  F16K3/085 ,  F16K3/316 ,  F16K3/34 ,  Y10T137/86743

Abstract: An axial piston pump may comprise a valve plate assembly including a plurality of valve plates rotatably disposed adjacent to each other and configured to control the flow of fluid between a piston chamber and inlet and outlet port passages. The piston pump may also comprise a swashplate arrangement that is capable of being angled in two different directions to be used in combination with the valve plate assembly. A fixed displacement axial piston pump may also comprise the valve plate assembly disclosed herein in which pressure transitions are facilitated in the same fashion, but without the variable of changing swashplate angles which control pump flow.

公开(公告)号：US20170159641A1

公开(公告)日：2017-06-08

申请号：US15368643

申请日：2016-12-04

Applicant: Michael Rannow ,  Perry Yan-Ho Li ,  Thomas Chase

Inventor： Michael Rannow ,  Perry Yan-Ho Li ,  Thomas Chase

IPC: F03C1/40 ,  F04B1/16 ,  F03C1/06 ,  F04B53/14 ,  F04B53/10 ,  F03C1/32 ,  F04B1/14 ,  F04B1/29

CPC classification number: F03C1/0681 ,  F03C1/0613 ,  F03C1/0615 ,  F03C1/0626 ,  F03C1/0628 ,  F03C1/0631 ,  F04B1/143 ,  F04B1/145 ,  F04B1/146 ,  F04B1/16 ,  F04B1/28 ,  F04B7/008 ,  F04B53/10

Abstract: A variable displacement pump-motor includes a pump-motor having a plurality of cylinders and pistons, and further including a main shaft rotatable relative to the system body. A hydro mechanical control system includes a plurality of main stage valves in communication with the plurality of cylinders. Each of the main stage valves is configured to open and close a cylinder of the plurality of cylinders to one or more of high or low pressure fluid sources. A pilot spool valve is in selective communication with each of the main stage valves. The pilot spool rotates with the main shaft. The pilot spool includes coding configured to operate each of the main stage valves to open and close the respective cylinders to the one or more high and low pressure fluid sources according to a translational position of the pilot spool and rotation of the pilot spool by the main shaft.

公开(公告)号：US09670922B2

公开(公告)日：2017-06-06

申请号：US15054615

申请日：2016-02-26

Applicant: GARDNER DENVER WATER JETTING SYSTEMS, INC.

Inventor： Amos Pacht

IPC: E03B5/00 ,  F04B53/10 ,  F16K1/42 ,  F04B1/04 ,  F04B53/00 ,  F04B1/12 ,  F04B1/14 ,  F04B53/16

CPC classification number: F04B53/1087 ,  F04B1/0452 ,  F04B1/124 ,  F04B1/143 ,  F04B1/145 ,  F04B53/007 ,  F04B53/109 ,  F04B53/16 ,  F16K1/42

Abstract: A pump system includes a pump housing defining a plurality of pump bores, a plurality of pumping members, and a plurality of valves positioned within the pump housing. Each of the valves includes a valve body defining a plurality of inlets, arranged to receive a low pressure fluid, a suction valve coupled to the valve body and movable between a closed position and an open position, the suction valve including a suction valve closing member having a conical contact surface having a large diameter portion, and a first elastomeric member positioned adjacent the large diameter portion, and a discharge valve coupled to the valve body and movable between a closed position and an open position, the discharge valve including a discharge valve closing member having a conical contact surface having a large diameter portion, and a second elastomeric member positioned immediately adjacent the large diameter portion.

公开(公告)号：US08475141B2

公开(公告)日：2013-07-02

申请号：US12757683

申请日：2010-04-09

Applicant: Italo DaRif

Inventor： Italo DaRif

IPC: F04B27/08 ,  F01B3/00

CPC classification number: F04B1/145

Abstract: A pump assembly 10 for high pressure cleaners having a pump body 12 encasing the free end 14 of a motor shaft provided with a keyed-on wobble plate 16 which moves one or more than one axial pistons 18 that are elastically tensioned by helical springs 20. The pump assembly also includes a pump head 32 fixed to the pump body 12 provided with fluid inlet and outlet conduits and relative valves, and an intermediate housing 34 for receiving and guiding the piston 18. The intermediate housing 34 has a frustoconical-shaped body with its larger diametered bottom section facing the same-diametered pump body 12 and being secured thereto by screws 36.

Abstract translation: 一种用于高压清洁器的泵组件10，其具有包围电动机轴的自由端14的泵体12，电动机轴设置有键入的摆动板16，该摆动盘16移动由螺旋弹簧20弹性张紧的一个或多个轴向活塞18。 泵组件还包括固定到泵主体12的泵头32，泵主体12设置有流体入口和出口导管和相关阀，以及用于接收和引导活塞18的中间壳体34.中间壳体34具有截头圆锥形体， 其较大直径的底部部分面向同一直径的泵体12并且通过螺钉36固定在其上。

公开(公告)号：US07874815B2

公开(公告)日：2011-01-25

申请号：US11894048

申请日：2007-08-16

Applicant: Georg Wesch ,  Wolfgang Mueller

Inventor： Georg Wesch ,  Wolfgang Mueller

IPC: F04B39/02 ,  F04B1/12

CPC classification number: F16H57/0421 ,  B08B3/026 ,  B08B2203/0294 ,  F04B1/128 ,  F04B1/141 ,  F04B1/145 ,  F04B17/03 ,  F04B53/18 ,  F16H57/0434 ,  F16H57/0482 ,  Y10T137/2322

Abstract: The invention relates to a high-pressure cleaning appliance with a motor-pump unit, comprising a pump head on which is positioned a piston subassembly, which carries a drive motor with the interposition of a planetary gearing, and has a plurality of pistons which can be moved back and forth in the longitudinal direction of the motor-pump unit and each penetrate into a pumping chamber of the pump head, and also comprising a swash-plate unit which interacts with the pistons, the planetary gearing having a sun gear which is connected in a rotationally fixed manner to the motor shaft of the drive motor and is coupled to a ring gear via planet gears rotatably mounted on a planet gear carrier, the planet gear carrier being connected in a rotationally fixed manner to the swash-plate unit. In order for it to be possible for the planetary gearing to be lubricated to good effect even when the motor-pump unit is oriented substantially vertically, it is proposed for the piston subassembly to have an oil sump into which penetrates an oil-delivery tube which is aligned coaxially with the motor shaft and is connected in a rotationally fixed manner to the planet gear carrier, it being possible for oil to be fed to the planetary gearing from the oil sump via the oil-delivery tube.

Abstract translation: 本发明涉及一种具有电动泵单元的高压清洁器具，包括一个泵头，活塞子组件位于该泵头上，该活塞子组件带有插入行星齿轮的驱动马达，并具有多个活塞， 在电机 - 泵单元的纵向方向上来回移动，并且每个都穿入泵头的泵送室，并且还包括与活塞相互作用的斜盘单元，行星齿轮具有太阳齿轮，该太阳齿轮是 以旋转固定的方式连接到驱动电动机的电动机轴上，并通过可旋转地安装在行星齿轮架上的行星齿轮联接到齿圈，行星齿轮架以旋转固定的方式连接到旋转斜盘单元。 为了使行星齿轮传动机构可以在马达 - 泵单元基本垂直取向的情况下被润滑得到很好的效果，因此建议活塞组件具有一个油槽，该油槽穿过一个油输送管， 与电动机轴同轴对准并且以旋转固定的方式连接到行星齿轮架上，可以通过油输送管将油从油底壳供给到行星齿轮传动装置。

公开(公告)号：US20100322789A1

公开(公告)日：2010-12-23

申请号：US12521740

申请日：2007-12-20

Applicant: Gerhard Betz ,  Herbert Dreher ,  Clemens Krebs ,  Michael Duerr

Inventor： Gerhard Betz ,  Herbert Dreher ,  Clemens Krebs ,  Michael Duerr

IPC: F04B1/26

CPC classification number: F04B1/2064 ,  F04B1/145

Abstract: The invention relates to a hydrostatic axial piston engine (1), having a housing (2), which with two transverse walls (18a, 18b) and a peripheral wall (2c) connecting these longitudinally to one another surrounds an interior (3), a driving shaft (19), which extends longitudinally in the housing (2) and is mounted rotatably in the housing (2), and a swash plate (4), which is mounted longitudinally adjacent to the cylinder drum (5) in the housing (2) and supported against which in an articulated manner are pistons (9) that are reciprocably mounted in approximately longitudinally extending piston holes (6) in the cylinder drum (5). In order to improve the axial piston engine (1) in terms of a spatially advantageous shape, the peripheral wall (2c) has at least one radial elevation (34a), which is constructed in an elongate manner in the longitudinal direction of the housing (2) and which is formed by two peripheral wall portions (2e), which are arranged in an angular or U-shaped manner and delimit a radially widened interior portion (36).

Abstract translation: 本发明涉及一种具有壳体（2）的静液压轴向活塞发动机（1），其具有两个横向壁（18a，18b）和将它们彼此纵向连接的周壁（2c）围绕内部（3）， 驱动轴（19），其在所述壳体（2）中纵向延伸并且可旋转地安装在所述壳体（2）中;以及旋转斜盘（4），其在所述壳体（5）中纵向邻近所述气缸滚筒 （2）并且以铰接的方式支撑为活塞（9），其可往复运动地安装在气缸滚筒（5）中的大致纵向延伸的活塞孔（6）中。 为了在空间上有利的形状方面改进轴向活塞式发动机（1），外围壁（2c）具有至少一个径向高度（34a），其在壳体的纵向方向上以细长方式构造（ 2），并且由两个外围壁部分（2e）形成，它们以角度或U形的方式布置并且限定径向加宽的内部部分（36）。

公开(公告)号：US20100290927A1

公开(公告)日：2010-11-18

申请号：US12757683

申请日：2010-04-09

Applicant: Italo DaRif

Inventor： Italo DaRif

IPC: F04B1/12

CPC classification number: F04B1/145

Abstract: An improved pump assembly 10 for high pressure cleaners, comprising a pump body 12 encasing the free end 14 of a motor shaft provided with a keyed-on, wobble plate 16 which moves one or more than one axial pistons 18 that are elastically tensioned by helical springs 20; the improved pump comprising also a pump head 32 fixed to said pump body 12 provided with fluid inlet and outlet conduits and relative valves, further to an intermediate housing 34 integrating the piston 18 support and guide lodgings. Said housing 34 features a frustoconical-shaped body with its larger diametered bottom section facing said same-diametered pump body 12, that it is secured onto by way of screws 36

Abstract translation: 一种用于高压清洁器的改进的泵组件10，包括泵体12，其包围电动机轴的自由端14，电动机轴设置有带键盘的摆动板16，该摆动板16移动一个或多个轴向活塞18，该活塞18被螺旋弹性张紧 弹簧20; 改进的泵还包括固定到所述泵体12的泵头32，泵头12设置有流体入口和出口管道和相对阀，还包括一体化活塞18支撑件和导向舱的中间壳体34。 所述壳体34具有截头圆锥形体，其具有面向所述相同直径的泵体12的较大直径的底部部分，其通过螺钉36固定

公开(公告)号：US20100038959A1

公开(公告)日：2010-02-18

申请号：US12539904

申请日：2009-08-12

Applicant: David F. Reuter ,  Daniel N. Borgemenke ,  Matthew P. Manning ,  Duane Edward Bassett

Inventor： David F. Reuter ,  Daniel N. Borgemenke ,  Matthew P. Manning ,  Duane Edward Bassett

IPC: B60T13/18

CPC classification number: B60T17/02 ,  B60T8/368 ,  B60T8/4022 ,  B60T8/4031 ,  F04B1/128 ,  F04B1/14 ,  F04B1/145

Abstract: A linear dual channel hydraulic control unit for a motor vehicle, having a motor section with an output shaft having a first output shaft end and an opposing second output shaft end. A rotationally adjustable wobble plate having an apex portion is fixed onto either end of the output shaft. A hydraulic block is mated onto either end of the motor section. Each hydraulic block includes an inlet for fluid communication with a braking fluid source and an outlet for fluid communication with a braking system brake, a pump cavity housing a pumping assembly and having an opening disposed on a first end, and first and second valve cavities housing first and second fluid control valves. Mated to each hydraulic block is a control sections providing first and second solenoid coils receiving portions of the first and second fluid control valves. The pumping assembly is reciprocally driven by the rotatable piston bearing surface along an axis radially disposed from and otherwise parallel to the axis of rotation of the rotatable piston bearing surface. Each of the wobble plates includes an apex that can be rotationally offset relative to the other about the axis of rotation ‘A’ to control the timing of the output cycle of the pumping assemblies; thereby reducing or eliminating the natural harmonic vibrations of the pumping assemblies and/or minimizing the current draw of the motor.

Abstract translation: 一种用于机动车辆的线性双通道液压控制单元，具有具有输出轴的马达部分，该输出轴具有第一输出轴端和相对的第二输出轴端。 具有顶点部分的旋转可调摇摆板被固定在输出轴的任一端。 液压块配合到电机部分的任一端。 每个液压块包括用于与制动流体源流体连通的入口和用于与制动系统制动器流体连通的出口，容纳泵送组件的泵腔，并且具有设置在第一端上的开口，以及第一和第二阀腔壳体 第一和第二流体控制阀。 配合到每个液压块的控制部分是提供接收第一和第二流体控制阀的部分的第一和第二螺线管线圈的控制部分。 泵送组件由沿着可旋转活塞支承表面的径向设置或平行于可旋转活塞支承表面的旋转轴线的轴线的可旋转活塞支承表面相互驱动。 摆动板中的每一个都包括一个顶点，该顶点可围绕旋转轴线'A'相对于另一个旋转偏移，以控制泵送组件的输出循环的时序; 从而减少或消除泵送组件的自然谐波振动和/或最小化电动机的电流消耗。