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公开(公告)号：US11982265B2
公开(公告)日：2024-05-14
申请号：US17634887
申请日：2020-08-11
发明人： Corrado Rossino
IPC分类号： F04B39/00 , F04B53/14 , F16J9/10 , F16J9/18 , F16J9/26 , F04B53/02 , F16J9/06 , F16J15/18 , F16J15/24 , F16J15/56
CPC分类号： F04B39/0005 , F04B53/143 , F16J9/10 , F16J9/18 , F16J9/26 , F04B53/02 , F16J9/06 , F16J15/188 , F16J15/24 , F16J15/56
摘要： A piston is described for the compression of a pneumatic fluid in a compression chamber of a cylinder comprising:
a cylindrically shaped piston body, adapted to be arranged slidably within said cylinder, and having a side wall and a top wall; along a circumferential perimeter of said side wall of the piston body a seat being defined; and
a sealing assembly accommodated in said seat, and adapted to ensure the fluid-tightness along said circumferential perimeter;
the sealing assembly comprising a plurality of sealing elements, having shapes complementary to one another, and configured so that the wear of a sealing element along said circumferential perimeter corresponds to a sliding in the radially outer direction of the adjacent sealing element.-
公开(公告)号：US11674509B2
公开(公告)日：2023-06-13
申请号：US17511378
申请日：2021-10-26
申请人： SPM Oil & Gas Inc.
摘要： A long sleeve cartridge for being inserted into a fluid end block of a pump is disclosed. The long sleeve cartridge includes a body and a sleeve bore extending through the body. The sleeve bore includes a first inner diameter and a second inner diameter. The first inner diameter is less than the second inner diameter. A first aperture is located on the body, and a second aperture is located on the body in a radial position substantially diametrically opposite of the first aperture. A packing seal assembly is secured within the long sleeve cartridge. The packing seal assembly includes one or more seals and a biasing mechanism to provide a compression force on the seals. The packing seal assembly is arranged within the second inner diameter when the packing seal assembly is disposed within the long sleeve cartridge.
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公开(公告)号：US20180202434A1
公开(公告)日：2018-07-19
申请号：US15408513
申请日：2017-01-18
申请人： Black Horse, LLC
IPC分类号： F04B53/02 , F04B19/22 , F16J15/3256
CPC分类号： F04B53/02 , F04B19/22 , F16J15/18 , F16J15/3252
摘要： A seal assembly includes a packing nut and a pressure ring configured to be coupled to the packing nut. An inner surface of the pressure ring defines a first circumferential groove that is configured to receive a first seal. The first seal is configured to be inserted into the first circumferential groove before the packing nut is coupled to the pressure ring such that the first seal is inserted into the first circumferential groove without being substantially flexed.
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公开(公告)号：US09822772B2
公开(公告)日：2017-11-21
申请号：US15381488
申请日：2016-12-16
IPC分类号： F04B13/00 , F04B53/02 , F04B13/02 , F04B53/10 , F04B53/16 , F04B49/08 , F04B19/22 , G01N30/20 , B01D15/14 , G01N30/02
CPC分类号： F04B13/00 , B01D15/14 , F04B19/006 , F04B19/22 , F04B49/08 , F04B53/02 , F04B53/1077 , F04B53/162 , G01N30/20 , G01N2030/027 , Y10T137/85978
摘要： A combined pump-injector valve system utilizing a monolithic body to provide the barrel of the pump and as the stator of the valve, thus eliminating any need for connections between a pump and a valve, and therefore the potential for high-pressure leaks or pressure reductions. The combined pump-injector valve permits injection of nanoliter-sized samples into a chromatographic column, which is sealed during loading of the sample and filling of the pump, such that complete analyses can be completed with microliters of mobile phase with nanoliters of a sample. The pump-injector valve system further includes a pressure sensor external the barrel of the pump and may include an interim position intermediate loading and injection where the contents of the barrel may be pressurized to a desired pressure.
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公开(公告)号：US20170314550A1
公开(公告)日：2017-11-02
申请号：US15534518
申请日：2015-09-07
申请人： Robert Bosch GmbH
发明人： Andreas Plisch , Jurij Giesler , Siamend Flo , Thorsten Allgeier , Walter Maeurer , Lena Maren Baessler
CPC分类号： F04B53/02 , F04B17/044
摘要： The invention relates to a piston pump, in particular for injection systems for motorized two-wheeled vehicles and/or for motorized three-wheeled vehicles, having a compression chamber, a piston, an inlet valve, and an outlet valve. A fluid can flow into the compression chamber via the inlet valve, and the fluid can flow out of the compression chamber via the outlet valve. A region in the form of a channel, which is arranged fluidically upstream of the outlet valve, in particular directly upstream of the outlet valve, has a cross-section which is reduced compared to a compression chamber region at a distance from the outlet valve. The invention is characterized in that a piston end face facing the channel has a region which can be immersed into the channel.
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公开(公告)号：US20170292342A1
公开(公告)日：2017-10-12
申请号：US15632310
申请日：2017-06-24
IPC分类号： E21B33/128 , F04B9/133 , E21B33/12
CPC分类号： E21B33/1285 , E21B33/1208 , E21B43/128 , F04B11/00 , F04B17/03 , F04B35/04 , F04B43/08 , F04B43/107 , F04B47/06 , F04B53/008 , F04B53/02 , F04B53/08 , F04B53/18 , F04D13/0653 , F04D13/10 , H02K5/132
摘要： An electric submersible pumping system for use in pumping fluids from a wellbore includes a motor, a pump driven by the motor, and a fluid expansion module connected to the motor. The fluid expansion module includes a piston seal housing and a piston assembly contained within the piston seal housing. The piston assembly includes a piston body having an exterior surface, a plurality of seals connected to the exterior surface of the piston body and a pressure equalization system. The pressure equalization system reduces a pressure differential between fluid in an annular space between the plurality of seals and fluid surrounding the first piston assembly.
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公开(公告)号：US20170198690A1
公开(公告)日：2017-07-13
申请号：US15404728
申请日：2017-01-12
申请人： Graco Minnesota Inc.
CPC分类号： F04B53/144 , B05B9/0413 , F04B1/0413 , F04B1/0426 , F04B1/0531 , F04B9/042 , F04B15/02 , F04B17/06 , F04B53/02 , F04B53/14 , F04B53/146 , F04B53/147
摘要： A piston rod for pumping paint includes an elongated cylindrical stem and a piston rod cap connected to the cylindrical stem. The cylindrical stem is formed from metal and has an outer diameter that is uniform along most or all of a length of the cylindrical stem. The piston rod cap is cylindrical and formed from metal. The piston rod cap includes an annular top portion that has an outer diameter that is larger than the outer diameter of the cylindrical stem, an annular bottom portion that has an outer diameter that is larger than the outer diameter of the cylindrical stem, and an exterior recess located between the annular top and bottom portions. The recess has an outer diameter that is smaller than the outer diameters of the annular top and bottom portions.
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公开(公告)号：US20170184094A1
公开(公告)日：2017-06-29
申请号：US15149471
申请日：2016-05-09
发明人： Jorge Goncalves
IPC分类号： F04B53/14 , F16J15/3256
CPC分类号： F04B53/143 , F04B37/08 , F04B53/02 , F05B2240/57 , F16J15/3256 , F16J15/3272 , F16J15/348
摘要： A mechanical seal of the cartridge type for a cryogenic pump. A stationary subassembly attaches to a pump casing, the stationary subassembly running against the flat surface of a rotary subassembly to thereby provide a sealing face. The stationary subassembly defines an inner seal cavity and further comprises a gland and a packing plate attached to the gland, the packing plate having a front face and back face, wherein the back face is angled to be non-parallel with the front face such that ice and moisture from the cryogenic pump is directed away from the inner seal cavity. A shroud over the drive ring for sealing disposition against the shaft shields ice and moisture ingress into the inner seal cavity. Lock wire holes defined within the collar screw and drive collar allow a lock wire to prevent loosening of the collar screw to prevent sparking.
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公开(公告)号：US20170009754A1
公开(公告)日：2017-01-12
申请号：US14766746
申请日：2014-09-24
申请人： José Félix Manfredi , Marcelo Teixeira Duarte , Heliara Dalva Lopes do Nascimento , Karel Negrin Napoles
发明人： José Félix Manfredi , Marcelo Teixeira Duarte , Heliara Dalva Lopes do Nascimento , Karel Negrin Napoles
CPC分类号： F04B17/03 , F04B13/00 , F04B19/22 , F04B23/06 , F04B49/06 , F04B49/065 , F04B53/02 , F04B53/10 , F04B53/14 , F04B2201/0201
摘要： Precision Analytical Pump of continuous flow, programmable and without pulsation, moves liquids and solutions without dead recharge time, for application in instrumental chemical analysis, in pharmaceutical and Fine Chemistry process lines. It consists of a micro-step electric motor (1), who drives a shaft with linear displacement (2), coupled to two pistons (3), which penetrate two volumetric chambers of variable volume (4), with antechambers (5) arranged between said chambers and motor, involving the movement path of pistons. Said chambers have connections with valves (6) for directional flow control and inner walls fit pistons with sealing rings (7). Said antechambers communicate in order inner saturated air can go from one to the other, for pressure equilibrium during pistons displacement. A digital electronic circuit monitors pump operation, limiting pistons course by sensors (8), and allows interface with the operator and with a computer.
摘要翻译： 精密分析泵连续流动，可编程和无脉动，可移动液体和溶液，无需充电时间，适用于仪器化学分析，制药和精细化学工艺流程。 它由一个微步进电动机（1）组成，该微型电动机驱动一个具有线性位移（2）的轴，该轴连接到两个活塞（3），两个活塞穿过可变体积（4）的两个体积腔室，前室（5） 在所述腔室和马达之间，涉及活塞的运动路径。 所述室具有用于定向流动控制的阀（6）和具有密封环（7）的内壁配合活塞的连接。 所述前厅进行通信，内部饱和空气可以从一个到另一个，用于活塞位移期间的压力平衡。 数字电子电路监测泵运行，通过传感器（8）限制活塞过程，并允许与操作者和计算机的接口。
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公开(公告)号：US09482211B2
公开(公告)日：2016-11-01
申请号：US13549232
申请日：2012-07-13
申请人： Shajan V. Chacko , David C. Wands
发明人： Shajan V. Chacko , David C. Wands
CPC分类号： F04B53/143 , B24C7/0007 , F04B1/0408 , F04B1/0448 , F04B53/02 , F04B53/16 , F04B53/164 , F16J9/12
摘要： A seal assembly seals a gap between a pump plunger and a high pressure cylinder of a pump. The assembly includes a seal ring having a bore through which the plunger can extend, a front axial end, and a rear axial end. An O-ring is positioned on the seal ring. A packing ring has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the seal ring, and a rear axial end. A non-metal packing follower has a bore through which the plunger can extend, a front axial end abutting the rear axial end of the packing ring, and a rear axial end. The non-metal packing follower can be ceramic (e.g., carbide) or similar hard, wear-resistant materials.
摘要翻译： 密封组件密封泵柱塞和泵的高压缸之间的间隙。 组件包括具有孔的密封环，柱塞可以穿过该孔，前轴向端和后轴向端。 O形圈位于密封圈上。 填料环具有柱塞能够延伸的孔，邻接密封环的后轴向端部的前轴向端部和后轴向端部。 非金属填料随动体具有柱塞能够延伸的孔，邻接填料环的后轴向端部的前轴向端部和后轴向端部。 非金属填料随动体可以是陶瓷（例如碳化物）或类似的硬质耐磨材料。
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