-
公开(公告)号：US12006926B1
公开(公告)日：2024-06-11
申请号：US16879965
申请日：2020-05-21
申请人： W. H. Barnett, Jr.
发明人： W. H. Barnett, Jr.
CPC分类号： F04B11/00 , F04B15/02 , F16L41/03 , F16L55/055 , E21B43/2607
摘要： The anti-cavitation device comprises a housing and valve assembly. A fluid end comprises one or more intake chambers, one or more exhaust chambers, a compression chamber, a plunger chamber, and one or more intake manifolds. The intake manifolds are fluidly connected to the intake chambers such that the intake manifolds are adapted to deliver the hydraulic fracturing fluid to the intake chambers. The intake chambers comprise intake valve assemblies adapted to regulate flow from the intake chambers to the compression chamber. One of the intake chambers comprises an anti-cavitation chamber positioned across from and co-planar with the plunger chamber. The anti-cavitation device is positioned within the anti-cavitation chamber. A method of reducing cavitation is provided, the method comprises the step of inserting the anti-cavitation device into the access opening of the fluid end. The anti-cavitation device may be used in existing, previously used, or new fluid ends.
-
公开(公告)号：US20240141879A1
公开(公告)日：2024-05-02
申请号：US18548251
申请日：2022-03-02
申请人： Equilibar, LLC
发明人： Zachary Allan Cobb , Jeffrey D. Jennings , Carlyle Leonard Donevant, IV , Ryan Matthew Heffner , Tony Boyd Tang
IPC分类号： F04B11/00 , F04B43/12 , F16K7/17 , F16K31/126
CPC分类号： F04B11/00 , F04B43/12 , F16K7/17 , F16K31/1266
摘要： A pulsation dampener includes: a centerbody assembly having: a chamber including a first opening bounded by a wall defining a first surface; an outlet port communicating with the chamber; an inlet port communicating with the chamber; a flexible first diaphragm, wherein a perimeter of the first diaphragm is bonded to the first surface forming a seal that blocks the passage of fluid; a first cap disposed adjacent the first diaphragm, defining a first cavity between the first cap and the first diaphragm; an inlet orifice formed in the first cap communicating with the first cavity; an exhaust orifice formed in the first cap communicating with the first cavity; and a valve seat disposed in the first cavity in fluid communication with the exhaust orifice. The first diaphragm is moveable between an open position spaced away from the valve seat, and a closed position sealed against the valve seat.
-
公开(公告)号：US20240011472A1
公开(公告)日：2024-01-11
申请号：US18372498
申请日：2023-09-25
发明人： Yehuda Algawi , Assaf Govari , Ilya Sitnitsky , Gili Attias
CPC分类号： F04B5/02 , F04B11/0008 , A61M5/14216 , F04B11/00 , A61M5/1422
摘要： A disposable single-piston dual-action reciprocating pump part includes a single piston, an output port, and a balloon damper. The output port is configured for outputting fluid pumped by the single piston. The balloon damper is fitted in the output port, and the balloon damper is configured to suppress a pulsation in a flow rate of the outputted fluid.
-
公开(公告)号：US11655816B2
公开(公告)日：2023-05-23
申请号：US14707727
申请日：2015-05-08
发明人： Elliott Gruber , Luke Wadsley
IPC分类号： F04C15/00 , F04C2/12 , F04C15/06 , F04C29/12 , F04C29/00 , F04C29/06 , F04B53/16 , F04C2/02 , F04C2/16 , F04C2/18 , F04C2/344 , F04C18/02 , F04C18/16 , F04C18/18 , F04C18/12 , F04C18/344 , F04B11/00 , F04B39/12
CPC分类号： F04C15/0049 , F04B11/00 , F04B11/0091 , F04B39/12 , F04B53/16 , F04C2/025 , F04C2/126 , F04C2/16 , F04C2/18 , F04C2/344 , F04C15/064 , F04C18/0215 , F04C18/126 , F04C18/16 , F04C18/18 , F04C18/344 , F04C29/0035 , F04C29/063 , F04C29/124 , F05C2253/14
摘要： A fluid working system such as a pump for displacing a working fluid such as hydraulic fluid or a motor using a working fluid is provided. The system may have a positive displacement machine which includes one or more working chamber with displacement means such as a cylinder with a reciprocating piston. There are also two or more fluid ports to allow the working fluid to flow into and out of the working chamber. The working fluid flows from one fluid port means to another either being forced to do so when pumped or moving the piston when functioning as an engine. The fluid working system has associated therewith a non-dead compliance volume of a material such as syntactic foam. This compliance volume acts to smooth any pressure fluctuations within the working fluid system.
-
公开(公告)号：US20180128266A1
公开(公告)日：2018-05-10
申请号：US15345462
申请日：2016-11-07
CPC分类号： F04B49/20 , F04B11/00 , F04B23/06 , F04B43/0072 , F04B43/1261 , F04B49/065 , F04B49/08 , F04B51/00 , F04B2205/04 , F04B2205/503
摘要： Methods and systems for pumping fluid through tubing are provided. Methods include orbiting one or more first rollers at multiple angular speeds around the periphery of a substantially circular first disk having a first radius with each first roller travelling at the same angular speed as the other first rollers, orbiting second rollers at a second angular speed around a substantially circular second disk having substantially the first radius, and increasing the pressure of fluid in tubing between one first roller and one second roller by causing the one or more first rollers to orbit at a first angular speed greater than the second angular speed so the one first roller moves along and fully compresses the tubing in a first section of the first disk, and simultaneously causing the one second roller to move along and fully compress the tubing in a first section of the second disk.
-
公开(公告)号：US20180058432A1
公开(公告)日：2018-03-01
申请号：US15660175
申请日：2017-07-26
申请人： Robert Bosch GmbH
发明人： Peter Roos
CPC分类号： F04B1/2064 , F03C1/0663 , F04B1/2014 , F04B11/00 , F04B11/0008
摘要： A hydrostatic axial piston machine includes a pot-like housing, a connection plate that closes the pot-like housing, a rotatably mounted cylinder drum, and pistons arranged in cylinder chambers of the cylinder drum. The cylinder chambers are each alternately connected via a cylinder chamber opening to a low-pressure control opening and a high-pressure control opening of a resting control part. The control part has two switching regions located between the low-pressure and high pressure control openings. A piston reverses its movement direction in a dead center within the two switching regions. In the switching region, the cylinder chambers are connected via a connecting line to a fluid volume arranged in the housing. The fluid volume extends between the connection plate and the housing such that it is sealed to an interior by the connection plate and the housing.
-
公开(公告)号：US20170291586A1
公开(公告)日：2017-10-12
申请号：US15512229
申请日：2015-09-09
申请人： Robert Bosch GmbH
CPC分类号： F04B5/00 , F04B1/0408 , F04B9/042 , F04B11/00 , F04B53/126 , F04B53/14
摘要： A reciprocating pump, in particular a hydraulic pump of a slip-controlled vehicle braking system, includes a step piston, a differential pressure valve, and a pump outlet. The step piston includes a piston step that delimits a stepped space which is in communication with the pump outlet via the differential pressure valve. The piston step is configured such that the step space undergoes suction and displacement in a direction opposite to a displacement space, and in smaller quantities than suction and displacement in the displacement space, such that brake fluid volume flow in the pump outlet is evened out, and such that pressure pulsations are inhibited.
-
公开(公告)号：US09732754B2
公开(公告)日：2017-08-15
申请号：US14836194
申请日：2015-08-26
申请人： HI-BAR BLOWERS, INC.
CPC分类号： F04C29/0035 , F04B11/00 , F04B39/0027 , F04B39/0055 , F04B39/0061 , F04B39/0088 , F04C18/0215 , F04C18/126 , F04C29/061 , F04C29/065 , F04C29/068
摘要： A shunt pulsation trap for a positive-displacement gas-transfer machine having a gas transfer chamber with an intake port and a discharge port and having at least one positive-displacement drive device (such as two cooperating rotors) defining a compression region of the transfer chamber. The trap includes a pulsation-trap chamber arranged for parallel fluid flow with the machine transfer chamber. The trap has a first (e.g., inlet) port in communication with the compression region of the transfer chamber (e.g., at least one lobe span away or totally isolated from the transfer-chamber intake port), a second (e.g., discharge) port in communication with the discharge port of the transfer chamber, and at least one pulsation dampener in the pulsation-trap chamber. In this way, the shunt pulsation trap traps and attenuates gas pulsations before discharge from the machinery transfer chamber, thereby reducing induced NVH and improving machinery efficiency.
-
公开(公告)号：US20170211559A1
公开(公告)日：2017-07-27
申请号：US14421830
申请日：2013-08-15
CPC分类号： F04B17/003 , E21B43/128 , F04B9/06 , F04B11/00 , F04B17/03 , F04B47/06 , F04B53/003 , F04B53/14 , F04B53/16
摘要： The technical solution relates to devices for pumping fluid media and can be used in industry, transport and the home for pumping liquids and other incompressible and compressible fluid media as well as for extracting oil from wells. The pump assembly with an electric drive consists of a housing, an electric drive armature situated inside the housing, and a displacer situated in the fore end of the housing, wherein the electric drive armature and the displacer are connected to one another. The displacer is in the form of a piston. The electric drive armature consists of the following, connected in series: an electric drive rear spacing block, an electric drive motion block capable of moving relative to the housing in the direction of a change in the length of the motion block, and an electric drive fore spacing block. Unlike the closest prior art, at least one electric drive spacing block is in the form of a magnetostrictive spacing block, and/or the electric drive motion block is in the form of a magnetostrictive motion block. The invention is intended to solve the technical problem of extending the range of existing technical equipment. The positive result of realizing the invention is that of achieving this purpose.
-
公开(公告)号：US20160131097A1
公开(公告)日：2016-05-12
申请号：US14927555
申请日：2015-10-30
申请人： DENSO CORPORATION
CPC分类号： F02M59/025 , F02M55/04 , F02M2200/31 , F04B11/00 , F04B53/16
摘要： A partitioning portion partitions a fuel chamber into a first space, which receives a pressurizing chamber forming portion and is communicated with an inflow pipe, and a second space, which is communicated with an outflow pipe. A flow passage forming portion extends from the partitioning portion toward the first space side and forms a communicating flow passage, which communicates between the first space and the second space. Thereby, vapor contained in the fuel, which is returned from a pressurizing chamber to the fuel chamber, is accumulated as bubbles in the first space, which receives the pressurizing chamber forming portion. The first space is communicated with the outside through the communicating flow passage and the second space. Therefore, outputting of air bubbles of the first space to the outside can be effectively limited in comparison to a case where the fuel chamber is directly communicated with the outside.
摘要翻译： 分隔部将燃料室分隔成容纳加压室形成部并与流入管连通的第一空间和与流出管连通的第二空间。 流路形成部从分隔部朝向第一空间侧延伸，形成在第一空间与第二空间之间连通的连通流路。 由此，从加压室返回到燃料室的燃料中所含的蒸气在接收加压室形成部的第一空间中作为气泡蓄积。 第一空间通过连通流路和第二空间与外部连通。 因此，与燃料室与外部直接连通的情况相比，可以有效地限制将第一空间的气泡输出到外部。
-
-
-
-
-
-
-
-
-
搜索结果
229 条记录 (耗时 0.023 秒)
