Настройки

Укажите год
-

Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

Подробнее
-

Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 11996. Отображено 100.
07-12-2020 дата публикации

Оголовок вакуумного насоса

Номер: RU0000201262U1
Автор: Владимир Анатольевич Аксельрод, Олег Викторович Канунников
Принадлежит: Общество с ограниченной ответственностью "Экотол-Сервис"

Полезная модель относится к комплектующему оборудованию вакуумных насосов, в частности к конструкции оголовка.Техническим результатом, решаемым предлагаемой полезной моделью, является создание конструкции оголовка для вакуумного насоса, обладающей повышенной коррозийной стойкостью, за счет чего обеспечения длительной работы вакуумного оборудования.Технический результат в предлагаемой полезной модели достигают созданием оголовка для вакуумного насоса, в котором, согласно полезной модели, корпус и крышка выполнены в виде единой детали из коррозийно-стойкого синтетического материала, оголовок снабжен пластиной, изготовленной из нержавеющей стали, размещенной снизу корпуса и имеющей установочные места для клапанов всасывания и нагнетания. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 201 262 U1 (51) МПК F04C 15/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ПОЛЕЗНОЙ МОДЕЛИ К ПАТЕНТУ (52) СПК F04C 15/00 (2020.08) (21)(22) Заявка: 2020129122, 02.09.2020 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Общество с ограниченной ответственностью "Экотол-Сервис" (RU) Дата регистрации: 07.12.2020 (45) Опубликовано: 07.12.2020 Бюл. № 34 2 0 1 2 6 2 R U (54) Оголовок вакуумного насоса (57) Реферат: Полезная модель относится к комплектующему оборудованию вакуумных насосов, в частности к конструкции оголовка. Техническим результатом, решаемым предлагаемой полезной моделью, является создание конструкции оголовка для вакуумного насоса, обладающей повышенной коррозийной стойкостью, за счет чего обеспечения длительной работы вакуумного оборудования. Технический результат в предлагаемой Стр.: 1 полезной модели достигают созданием оголовка для вакуумного насоса, в котором, согласно полезной модели, корпус и крышка выполнены в виде единой детали из коррозийно-стойкого синтетического материала, оголовок снабжен пластиной, изготовленной из нержавеющей стали, размещенной снизу корпуса и имеющей установочные места для клапанов всасывания и ...

Подробнее
Номер записи: 1
22-03-2012 дата публикации

Pre-pressurization pump liner for vane pump

Номер: US20120070327A1
Автор: David W. Borgetti, Paul G. Dennis, Timothy J. Franckowiak
Принадлежит: Hamilton Sundstrand Corp

A vane liner for use in a vane pump has a vane liner body defining an inner bore for providing a cam surface in a vane pump. The cam surface has a suction opening formed through the body at one circumferential extent, and a discharge opening through the body at a distinct circumferential extent. A pre-pressurization opening extends through the body at a location upstream of an upstream end of the discharge opening, but spaced by at least 90 degrees from a downstream end of the suction opening. A vane pump incorporating the above-discussed liner is also claimed. Further, a vane pump is also disclosed and claimed having the spacing from the downstream end of the suction opening at least X degrees wherein X equals 360 divided by N, N being the number of vanes in the vane pump.

Подробнее
Номер записи: 2
05-04-2012 дата публикации

Pendulum-slide cell pump

Номер: US20120082582A1
Автор: Christian Richter, Mark Tepler
Принадлежит: MAHLE International GmbH

A pendulum-slide cell pump may include a rotationally mounted inner rotor connected via pendulum-slides with an outer rotor and wherein the outer rotor may be configured to transfer rotational movement of the outer rotor to the inner rotor via the pendulum-slides.

Подробнее
Номер записи: 3
19-04-2012 дата публикации

Exhaust heat regeneration system

Номер: US20120090317A1
Автор: Kazuhiko Kawajiri, Kazunori Tsuchino, Minoru Sato
Принадлежит: Mitsubishi Electric Corp

An exhaust heat regeneration system includes: an evaporator for cooling engine cooling water; an expansion device for expanding the refrigerant heated through the evaporator so as to generate a driving force; a condenser for cooling the refrigerant passing through the expansion device to condense the refrigerant; and a pump for pressure-feeding the refrigerant cooled through the condenser to the evaporator, in which: the expansion device is coupled to the pump by a shaft, and the expansion device and the pump are housed within the same casing to constitute a pump-integrated type expansion device; and the pump includes a high-pressure chamber through which the refrigerant to be discharged to the evaporator flows, the high-pressure chamber being provided on the expansion device side, or a low-pressure chamber through which the refrigerant flowing from the condenser flows, the low-pressure chamber being provided on the expansion device side.

Подробнее
Номер записи: 4
16-08-2012 дата публикации

Rotary compressor having gate axially movable with respect to rotor

Номер: US20120207639A1
Автор: Gregory T. Kemp
Принадлежит: Individual

A rotary compressor having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric to a housing longitudinal axis. A gate is also provided that is slidably mounted therewith the rotor and movable axially about and between a first position, in which a distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor. The distal end of the gate being constrained to be spaced proximate from the inner wall surface of the housing as the rotor rotates about the rotor axis of rotation.

Подробнее
Номер записи: 5
23-08-2012 дата публикации

Pump assemblies with freeze-preventive heating

Номер: US20120211093A1
Автор: David J. Grimes
Принадлежит: Micropump Inc

Pumps are disclosed that include a pump housing and at least one movable pumping element situated in the housing. The pumping element(s) are magnetically driven by magnetically coupling an external magnet driver (e.g., a stator) to a driven magnet located in the housing. A control circuit selectively operates the stator and a heat-producing element, so as to energize the heat-producing element especially in a potential freezing condition when the pump is not being otherwise operated. Thus, the fluid in the pump is prevented from freezing, and freeze-related pump damage is avoided. The heat-producing element can be the stator itself energized differently from when the stator is used for driving the pump.

Подробнее
Номер записи: 6
30-08-2012 дата публикации

Seal retaining sleeve for gear pump

Номер: US20120219445A1
Автор: Satish Shantilal Shah, Timothy P. Walgren
Принадлежит: Hamilton Sundstrand Corp

A shaft assembly includes a shaft with a first radial shoulder and a second radial shoulder along a shaft axis. A seal retaining sleeve is defined around the shaft axis to position a shaft seal. A retainer plate at least partially between the first radial shoulder and the second radial shoulder is adjacent to the seal retaining sleeve to position and provide access to the seal retaining sleeve and shaft seal.

Подробнее
Номер записи: 7
20-09-2012 дата публикации

Downhole Backspin Retarder for Progressive Cavity Pump

Номер: US20120237380A1
Автор: Jorge Robles-Villa
Принадлежит: Weatherford Lamb Inc

A backspin retarder for a progressive cavity pump deploys on the drive string uphole from a pump unit. The backspin retarder has a shaft that connects to portions of the drive string. An impeller disposes on the shaft and can move axially and radially. In an unengaged condition, the impeller and shaft can rotate relative to one another so the drive string can rotate in a drive direction without impediment from the impeller. In an engaged condition, the impeller rotates with the shaft in a backspin direction. In this way, vanes on the impeller can retard the backspin of the shaft and drive string by attempting to force the lifted fluid column flowing downhole past the impeller back uphole. The retarder can use a pin and slot arrangement or an arrangement of engageable teeth to engage the impeller to the rotation of the shaft.

Подробнее
Номер записи: 8
04-10-2012 дата публикации

Meat processing assembly

Номер: US20120252332A1
Автор: Andrew W. Maddux, Emile A. Burgers, Kenneth B. Arnote, Liansuo Xie, Michael S. Simpson
Принадлежит: Marel Meat Processing Inc

An improved processing assembly having a meat emulsion pump connected to a stuffing horn. The stuffing horn positioned to fill casings with meat emulsion which form a strand of processed meat that is received by a twister, then a linker, and subsequently deposited on a conveyor.

Подробнее
Номер записи: 9
11-10-2012 дата публикации

External Gear Pump for Hot Cooking Oil

Номер: US20120258006A1
Автор: Joshua Gerbig, Scott Meyer, William E. Allen, Jr.
Принадлежит: Viking Pump Inc

An overhung external spur gear positive displacement pump for hot oil or deep fryer applications is disclosed. The external gear pump includes a casing that includes a through bore for accommodating a drive shaft that leads to a pump chamber that accommodates a drive gear and a driven gear. The casing further includes a recess connected to the pump chamber for accommodating a stationary pin. The casing also includes a proximal end coupled to a prime mover and a distal end coupled to a head. The gears are enclosed in the pump chamber by the head. The stationary pin is accommodated within the driven gear and the drive shaft is coupled to the drive gear. The head is provided in the form of a flat plate with a plurality of holes for accommodating fasteners that couple the head to the distal end of the casing.

Подробнее
Номер записи: 10
08-11-2012 дата публикации

Rapid ink-charging of a dry ink discharge nozzle

Номер: US20120282840A1
Автор: Conor F. Madigan, Eliyahu Vronsky
Принадлежит: Kateeva Inc

The present teachings relate to methods and apparatus for depositing one or more materials (e.g., one or more films, such as one or more solids) on one or more substrates, which may form part of an OLED or other type(s) of display. In some embodiments, the disclosure relates to apparatus and methods for depositing ink on one or more substrates. The apparatus can include, for example, one or more chambers for receiving ink, and plural orifices configured for ejecting droplets of the ink. The ejected droplets of ink can be received at unique, spaced-apart locations. In some embodiments, a single liquid ink-holding chamber, which includes plural orifices (e.g., three), receives ink in liquid form having a plurality of dissolved or suspended particles, and droplets of the ink are ejected substantially simultaneously to respective, spaced-apart locations on one or more substrates.

Подробнее
Номер записи: 11
15-11-2012 дата публикации

Pump-motor assembly

Номер: US20120288380A1
Автор: Anthony P. Tata, Edward L. Kaiser, Michael C. Muir, Michael P. Fannin, Peter Bostwick, Ryan Van Tiem
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A pump-motor assembly includes a motor housing, a motor disposed substantially within the motor housing, and a pumping element driven by the motor. A pressurized region is filled with a fluid pressurized by the pumping element, and a fluid passage is in fluid communication with the pressurized region and the motor housing. Fluid flows from the pressurized region to the motor housing and at least partially submerges the motor.

Подробнее
Номер записи: 12
22-11-2012 дата публикации

Vacuum control in a vacuum filler without external air supply

Номер: US20120295526A1
Автор: Martin Staudenrausch
Принадлежит: Albert Handtmann Maschinenfabrik GmbH and Co KG

A conveyor system for a filling machine and a method of conveying pasty mass with a corresponding conveyor system and a corresponding filling machine, including a housing with a vacuum opening and a vacuum pump as well as a suction line for generating a vacuum in the conveyor system. A valve means and at least one pressure sensor for measuring the pressure in the suction line and/or in the conveyor system are provided. A control means controls the vacuum in the conveyor system or the suction line, respectively, wherein the cross-section of the suction line is adjusted in response to the measured pressure via the valve means.

Подробнее
Номер записи: 13
13-12-2012 дата публикации

Scroll-Type Fluid Machine

Номер: US20120315174A1
Автор: Kiminori Iwano, Natsuki Kawabata, Shumpei Yamazaki, Toshikazu Harashima, Yoshio Kobayashi
Принадлежит: Hitachi Industrial Equipment Systems Co Ltd

A scroll-type fluid machine reduces intrusion of abrasion powders, generated by sliding of a conductor causing an orbiting scroll side and a fixed scroll side to be conducted, into a compression chamber, and improves reliability of a compressor. The scroll-type machine includes a casing, a fixed scroll having a flange surface attached to the casing, and a wrap portion provided at an end plate, an orbiting scroll having a wrap portion provided at the end plate, and provided in an opposed relationship with the fixed scroll, a drive shaft connected through a crank portion to the orbiting scroll, an orbiting bearing, a face seal portion arranged between the orbiting scroll and the fixed scroll, a cooling fan, and an orbiting scroll side conductive brush.

Подробнее
Номер записи: 14
28-02-2013 дата публикации

Apparatus and method for controlling or limiting rotor orbit in moving cavity motors and pumps

Номер: US20130048384A1
Автор: Andrei Plop, Brian P. Jarvis, Brian Williams, Daniel Alvarado, Geoffrey Downton, Gokturk Tunc, Lance Underwood, Lawrence Lee, Maxim Pushkarev, Nigel Wilcox, Peter Thomas Cariveau, Shunetsu Onodera, Warren Askew, William Murray
Принадлежит: Smith International Inc

A moving cavity motor or pump, such as a mud motor, comprising: a rotor, a stator, and one or more apparatus for constraining (i.e., controlling or limiting) the movement of the rotor relative to the stator.

Подробнее
Номер записи: 15
28-02-2013 дата публикации

Vane pump apparatus and method

Номер: US20130052057A1
Автор: Alexander RÜTHER, Theodor Hüser, Udo Schubert
Принадлежит: Hella KGaA Huek and Co

The invention relates to a vane pump, comprising an electric drive unit having an electric motor and a motor shaft, a pump chamber, attached on the electric drive unit, a rotor having a plurality of blades, said rotor being arranged concentrically to the motor shaft within the pump chamber, wherein the motor shaft is engaged with the rotor by way of a tappet which is connected torsionally rigid with the motor shaft and the tappet comprises at least one tappet peg, which is engaged in a rotor recess that corresponds to the tappet peg, wherein the at least one rotor recess has an oval shape and the tappet peg is contoured in such a way that two first slightly curved contoured sections each form one contact area with one oblong planar section each of the rotor recess.

Подробнее
Номер записи: 16
14-03-2013 дата публикации

ROTATION DEVICE INCLUDING SEAL STRUCTURE

Номер: US20130064704A1
Автор: Kawabata Tomoaki, Nakamura Yuki
Принадлежит: ADVICS CO., LTD.

A seal member is configured so that an annular rubber member is disposed in an annular storage chamber of a resin annular member. Thus, the rubber annular member is not directly in contact with a drive shaft, and the rubber annular member can be prevented from wearing or peeling without requiring a rotation stopping structure for the seal member. Furthermore, the seal member is provided with first and second communication mouths, so that a brake fluid pressure is applied to compartments obtained by dividing the annular storage chamber using the rubber annular member. Thus, the rubber annular member is pressed, and then is elastically deformed, and accordingly, the resin annular member is expanded by the elastic force. Thus, a self-sealing operation can be performed on the basis of a high pressing force. 1. A rotation device comprising:a shaft;a casing at which a center hole is formed so as to house the shaft while allowing relative rotation of the shaft; anda seal structure located in the center hole of the casing, the seal structure accordingly sealing a void between the shaft and the casing,the seal structure including:a resin annular member including a shaft-side seal surface tightly in contact with the shaft and a casing-side seal surface tightly in contact with the casing, and having an annular storage chamber between the shaft-side seal surface and the casing-side seal surface; anda rubber annular member located in the annular storage chamber, being tightly in contact with an inner wall surface at each of an inner circumferential side and an outer circumferential side of the annular storage chamber, and thereby forming compartments into which the annular storage chamber are divided,wherein a first communication hole and a second communication holeare formed at the resin annular member, the first communication hole causing one of both parts into which the seal structure divides a void between the shaft and the casing to communicate with one of both of the ...

Подробнее
Номер записи: 17
28-03-2013 дата публикации

Seal for Oil-Free Rotary Displacement Compressor

Номер: US20130075975A1
Автор: Hilaris John A., Liarakos Nicholas P.
Принадлежит: HYDRO-ERGOSEAL INC.

Non-contacting cartridge shaft seals prevent leakage loss of process gases in an “oil free” rotary screw compressor or blower, while simultaneously preventing ingress of lubricating oil to the pumping chamber, allowing the compressor/blower to generate process pressure differentials without oil contamination. A compact unitized seal cartridge assembly is provided in the end plates of the pump housing. One of the rotor shafts extends through an aperture in the end plate or housing, between the pumping chamber and oil-lubricated gear/bearing cases. Internal elements have the ability to self-align radially achieving essential concentricity with shaft rotational axes. The rotor shafts or sleeves non-contact relationship during operation allow increased ranges of shaft rotational speeds. Air seal elements restrict flow of process air from the pumping or compression chamber, and oil seal elements with a directional spiral groove on the inside diameter prevent the leakage of lubricating oil to the process or atmosphere. 1. A seal cartridge for use in rotary displacement compressor , the compressor having a compressor chamber between two shaft bearings , comprising:a) a cartridge carrier disposed in a seal cavity and around a shaft capable of housing at least two self aligning seal rings, the cartridge carrier including a fluid communication path in fluid communication with the environment outside the seal cavity, the shaft having a closely controlled outer diameter surface;b) a first oil seal ring disposed within a cartridge cavity at least partially defined by an inner diameter of said cartridge carrier and sealing between a fluid communication path side and a shaft bearing side, the first oil seal ring being statically sealed against a surface of said cartridge carrier, the first oil seal ring further comprising a spiral groove in a machined inner diameter surface thereof, the machined inner diameter surface having very close tolerances, and the spiral grooves being ...

Подробнее
Номер записи: 18
11-04-2013 дата публикации

COMPONENT HAVING REDUCED METAL ADHESION

Номер: US20130089454A1
Автор: Grafinger Matthias, Reisner Martin, Stetina Gerold
Принадлежит: MIBA SINTER AUSTRIA GMBH

The invention relates to an assembly () having at least two metallic components () which are subject to sliding stress and each have a sliding surface and in operation slide against one another, wherein at least one of the components () consists of a metallic sintered material having an iron-based matrix containing iron together with carbon and up to 10% by weight of at least one non-ferrous metal at least in the region of the sliding stress, where the carbon content is at least 1% by weight and not more than 10% by weight and at least part of the carbon is present in unbound particulate form in the matrix. 112323. An assembly () , in particular a pump for a motor vehicle , comprising at least two metal components ( , ) which are subject to sliding stress , in particular a stator and a rotor , which each have a sliding surface and in operation slide against one another , where at least one of the components ( , ) at least in the area of sliding stress is made from a metal sintered material having an iron-based matrix , which in addition to iron contains carbon and up to 10 wt. % of at least one non-ferrous metal , the proportion of carbon content being at least 1 wt. % , wherein the carbon content is a maximum of 10 wt. % and at least a portion of the carbon is present in unbound particulate form in the matrix.21. The assembly () as claimed in claim 1 , wherein the proportion of unbound carbon is at least 80%.31. The assembly () as claimed in claim 1 , wherein the proportion of carbon is between 1.5 wt. % and 8 wt. %.41. The assembly () as claimed in claim 1 , wherein the unbound carbon has a particle size with a length of between 50 μm and 300 μm and a width of between 5 μm and 70 μm.51. The assembly () as claimed in claim 1 , wherein the matrix has a structure composed of perlite and ferrite.61. The assembly () as claimed in claim 5 , wherein the ratio of perlite to ferrite is between 95:5 and 50:50.71. The assembly () as claimed in claim 5 , wherein the ...

Подробнее
Номер записи: 19
18-04-2013 дата публикации

Intake charged pump for delivering a liquid

Номер: US20130094948A1
Автор: Marco Rosendahl, Paolo Ruatto, Stephan Brussa, Thomas Kramer
Принадлежит: ZF FRIEDRICHSHAFEN AG

An intake charged pump for pumping liquid and which has an intake duct that extends to the suction area of the pump. The pump has a duct through which a jet stream flows to the suction area. A nozzle arrangement in the intake duct accelerates the liquid which is returned via the jet stream and supports the suction of a suction stream of the liquid from a storage container. A nozzle of the nozzle arrangement leads into the mixing chamber at an acute angle in a such way that the jet stream, leaving the nozzle, creates a common mixing stream with the suction stream from the storage container, and through which partial streams having essentially the same pressure and energy content, can be delivered to the front and back suction pockets of the double chamber pump.

Подробнее
Номер записи: 20
18-04-2013 дата публикации

Rotary Piston Pump And Method For Operating A Rotary Piston Pump

Номер: US20130094985A1
Автор: Boehme Thomas, Denk Reinhard, Enderle Udo, Gradl Mathias, Herr Gunter, Kamal Hisham, Kern Stefan, Kneidl Franz, Kreidl Johann, Kurz Robert, Linde Hans Juergen, Murrenhoff Bernhard, Strassl Josef, Tekneyan Mikael, Verhoeven Marcel, Weber Erwin, Weigl Stefan, Willis Roger
Принадлежит:

A rotary piston pump equipped with a motor having two counter-rotating rotary pistons. The two rotary pistons are housed in an oval pump housing. The two rotary pistons are arranged on a first output shaft and a second output shaft. The first output shaft and the second output shaft are driven and synchronized via at least one elastic element. 1. A rotary piston pump with at least one motor with at least two counter-rotating rotary pistons and a pump housing , wherein the at least two rotary pistons are disposed on a first output shaft and a second output shaft and wherein the first output shaft and the second output shaft are synchronised and driven in such a way that the at least two rotary pistons engage into one another , characterised in that the rotary pistons are connected to one another at the drive side via at least one elastic element.2. The rotary piston pump according to claim 1 , characterised in that the elastic element is an endless claim 1 , flexible element.3. The rotary piston pump according to claim 2 , characterised in that the endless claim 2 , flexible element is a double-toothed belt and/or a chain and/or a link belt and/or at least one coated toothed wheel.4. The rotary piston pump according to claim 3 , characterised in that the length of the free strand can be adjusted by means of the active radii of the first output wheel and the second output wheel and/or that the degree of the synchronisation precision can be adjusted by means of a free length of a strand between the first output wheel and the second output wheel.5. The rotary piston pump according to claim 4 , characterised in that the length of the free strand can be adjusted by means of the spacing between the first output shaft and the second output shaft.6. The rotary piston pump according to claim 4 , characterised in that the coated toothed wheel is coated with an elastic material.7. The rotary piston pump according to claim 1 , characterised in that the motor can be positioned ...

Подробнее
Номер записи: 21
18-04-2013 дата публикации

Gear Pump

Номер: US20130094988A1
Автор: Witzler Dietrich
Принадлежит: Oerlikon Textile GmbH & Co. KG

A gear pump is described with a plurality of gear wheels which intermesh in order to deliver a pumping medium, and are rotatably held in a pump case and deliver a pumping medium from a priming zone into a delivery pressure zone of the pump case. One of the gear wheels is driven by a pump shaft which protrudes with a coupling end out of the pump case. In order to seal the pump case, a shaft sealing ring is held around the circumference of the pump shaft, wherein according to the invention, in order to avoid material deposits, the shaft sealing ring is associated with an interior flushing chamber on the circumference of the pump shaft, the flushing chamber being connected to the delivery pressure zone of the pump case by a feed channel in the pump case. 1. A gear pump comprising:a plurality of intermeshed gear wheels that are rotatably held in a pump housing to deliver a pumping medium from a priming zone into a delivery pressure zone of the pump housing;a pump shaft for driving one of the gear wheels, wherein the pump shaft has a coupling end protruding from the pump housing and a shaft sealing ring held on the circumference of the pump shaft for sealing the pump housing; andan interior flushing chamber about the circumference of the pump shaft and associated with the shaft sealing ring, the flushing chamber being connected to the delivery pressure zone of the pump housing by a feed channel in the pump housing21. The gear pump according to Claim , wherein the flushing chamber is in fluid communication with the priming zone of the pump housing by a return channel in the pump housing.31. The gear pump according to Claim , wherein at least one of the feed channel and the return channel flow into a region of a stop face of a housing plate of the pump housing which cooperates on the front side with the gear wheel held on the pump shaft.41. The gear pump according to Claim , wherein the feed channel and the return channel flow into the flushing chamber at an angular offset ...

Подробнее
Номер записи: 22
25-04-2013 дата публикации

Rotary machine and pump driving apparatus

Номер: US20130101448A1
Автор: Daishi Kato, Kunihito Ando, Takahiro Naganuma, Tomoaki Kawabata, Yuki Nakamura
Принадлежит: Advics Co Ltd, Denso Corp

A rotary machine includes a rotary shaft having two driving reactive force receiving parts that are displaced in an axial direction and are applied with diametrical reactive forces having different rotation phases from driving targets as normal loads; and bearings that rotatably support the rotary shaft wherein the rotary shaft is rotated at a state where the rotary shaft is supported by the bearings to drive the driving targets via the driving reactive force receiving parts, wherein the bearings are respectively provided at both axial sides of one of the two driving reactive force receiving parts, which receives a higher normal load, and wherein a leading end side of the rotary shaft more than the other of the two driving reactive force receiving part, which receive a lower normal load lower than the higher normal load, is configured as a free end.

Подробнее
Номер записи: 23
02-05-2013 дата публикации

Urea solution pump structure

Номер: US20130108484A1
Автор: Buyeol Ryu, Dong Myoung RYOO, Jong-Sang NOH, Jongman LEE, Junhyuck Jang, Pil Seon Choi
Принадлежит: Donghee Industrial Co Ltd, Hyundai Motor Co, Kia Motors Corp

A urea solution pump structure may include a housing portion connected to an external connector and covering an upper portion of the pump structure, a motor portion disposed at a lower portion of the housing portion and including a rotor and a stator, a case portion receiving the motor portion therein, and a pump portion disposed at a lower portion of the case portion and fluid-isolated from the motor portion, wherein the pump portion may be formed with an inlet and an outlet for a fluid, wherein a hollow cover may be provided at a lower portion of the case portion for separating the pump portion and the motor portion, and an oil seal unit may be mounted at a lower portion of the hollow cover for sealing a rotating shaft of the rotor which penetrates through the hollow cover.

Подробнее
Номер записи: 24
02-05-2013 дата публикации

VANE CELL MACHINE

Номер: US20130108498A1
Автор: Hansen Ove Thorboel, Haugaard Erik, Martensen Lars, Olsen Palle, Petersen Hans Christian
Принадлежит: Danfoss A/S

The invention concerns a vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides, said vanes bearing on an inside of the stator and bordering, together with the rotor, the stator and a side wall, work chambers at each axial end of the rotor. It is endeavoured to provide a vane cell machine that has a good internal tightness, in which the wear is still kept small. For this purpose, in a radially internal area the side wall comprises an insert that is axially movable in the side wall and has a pressure application surface axially inside and axially outside. 1. A vane cell machine with a stator and a rotor having radially displaceable vanes arranged in guides , said vanes bearing on an inside of the stator and bordering , together with the rotor , the stator and a side wall , work chambers at each axial end of the rotor , wherein in a radially internal area the side wall comprises an insert that is axially movable in the side wall and has a pressure application surface axially inside and axially outside.2. The vane cell machine according to claim 1 , wherein the side wall is made as a plate.3. The vane cell machine according to claim 1 , wherein the side wall is formed in a housing of the vane cell machine.4. The vane cell machine according to claim 1 , wherein a sealing ring is arranged between the stator and the insert.5. The vane cell machine according to claim 4 , wherein the sealing ring is arranged at a radial position of the rotor claim 4 , at which the forces caused by the pressure of the fluid radially outside the sealing ring are as large as forces caused by the pressure of the fluid on the side of the insert facing the rotor.6. The vane cell machine according to claim 1 , wherein the insert comprises an axial extension that forms a bearing for a shaft that is connected to the rotor.7. The vane cell machine according to claim 6 , wherein the extension comprises a step that forms a bearing surface for the sealing ring. ...

Подробнее
Номер записи: 25
02-05-2013 дата публикации

VANE CELL MACHINE

Номер: US20130108499A1
Автор: Hansen Ove Thorboel, Haugaard Erik, Martensen Lars, Olsen Palle, Petersen Hans Christian
Принадлежит: Danfoss A/S

The invention concerns a vane cell machine having a stator and a rotor that is made of a first material, the rotor having guides comprising radially displaceable vanes that rest on an inside of the stator and border work chambers at each axial end of the rotor together with the rotor, the stator and individual stationary side walls, the vanes having, at least at some contact faces with the rotor and the stator, a second material that interacts unfrictionally with the first material. It is endeavoured to keep the wear small. For this purpose, in a radially inner area, the side wall comprises a surface of a third material interacting unfrictionally with the first material and, in a radially outer area a surface made of the first material. 1. A vane cell machine having a stator and a rotor that is made of a first material , the rotor having guides comprising radially displaceable vanes that rest on an inside of the stator and border work chambers at each axial end of the rotor together with the rotor , the stator and individual side walls , the vanes having , at least at some contact faces with the rotor and the stator , a second material that interacts unfrictionally with the first material , wherein in a radially inner area , the side wall comprises a surface of a third material interacting unfrictionally with the first material and , in a radially outer area a surface made of the first material.2. The vane cell machine according to claim 1 , wherein the side wall is made as a plate.3. The vane cell machine according to claim 1 , wherein the side wall is formed in a housing of the vane cell machine.4. The vane cell machine according to claim 2 , wherein a radially inner area claim 2 , the side wall comprises an insert made of the third material.5. The vane cell machine according to claim 4 , wherein the insert is arranged in a central recess in the side wall and comprises an eccentric bore through which the rotor is led.6. The vane cell machine according to claim 4 , ...

Подробнее
Номер записи: 26
23-05-2013 дата публикации

Contact Element For Rotary Piston Pump

Номер: US20130129555A1
Автор: Boehme Thomas, Denk Reinhard, Gradl Mathias, Herr Gunter, Kamal Hisham, Kern Stefan, Kneidl Franz, Kreidl Johann, Kurz Robert, Linde Hans Juergen, Murrenhoff Bernhard, Strassl Josef, Tekneyan Mikael, Verhoeven Marcel, Weber Erwin, Weigl Stefan, Willis Roger
Принадлежит:

The rotary piston pump includes two counter-rotating rotary pistons and an oval pump housing. Every rotary piston has a rotary piston vane and is provided with a contact element. The contact points of the flanks of the two rotary pistons in which the two rotary pistons form a friction pairing are provided with a contact element each. The interior of the oval pump housing is likewise provided with an exchangeable contact element. 1. A rotary piston pump comprising at least two counter-rotating rotary pistons and a pump housing , wherein each rotary piston comprises rotary pistons vanes and wherein each rotary piston is provided at least with one contact element , characterised in that the rotary pistons are provided at their flank that at least one contact element , with which the rotary pistons form a friction pair , wherein the pump housing is provided at its interior with at least one contact element and wherein the contact elements are disposed at the flanks of the rotary pistons in such a way that an active interrelation is ensured between the contact elements of the rotary pistons and caps of the rotary pistons.2. The rotary piston pump according to claim 1 , characterised in that the contact elements of the rotary pistons and/or the contact element of the pump housing are exchangeable.3. The rotary piston pump according to claim 1 , characterised in that the contact element of the pump housing comprises at least two parts.4. The rotary piston pump according to characterised in that the contact elements of the rotary pistons and/or the contact element of the pump housing are connected by a form-fit claim 1 , friction-locked and/or firmly bonded connection to the rotary piston and/or the pump housing.5. The rotary piston pump according to claim 1 , characterised in that the contact elements of the rotary pistons and/or the contact element of the pump housing are formed from a sealing and/or slidable material.6. The rotary piston pump according to claim 1 , ...

Подробнее
Номер записи: 27
06-06-2013 дата публикации

Electric pump

Номер: US20130142680A1
Автор: Hiroyuki Uehara, Nozomu Sumitomo, Shinya TAMAWARI, Tadahiro Kitamura, Yusuke Kojima
Принадлежит: Aisin Seiki Co Ltd

An electric pump includes a motor, a bracket including a support surface arranged to be perpendicular to a rotation shaft of the motor and a bush attachment bore provided to be perpendicular to the support surface, and a bush fitted to the bush attachment bore. The bush attachment bore includes a base portion formed in a shape similar to a portion of the bush fitted to the bush attachment bore, the bush attachment bore including an expansion portion integrally formed with the base portion and extending in a circumferential direction of the motor.

Подробнее
Номер записи: 28
13-06-2013 дата публикации

DISTRIBUTOR ASSEMBLY FOR TWO-SPEED GEROTOR DEVICE

Номер: US20130149181A1
Автор: Jingzhi Yan, Linhua Li, Qingguo Shi
Принадлежит: WHITE (CHINA) DRIVE PRODUCTS CO., LTD.

A distributor assembly () includes a distributor housing () and a valve selector plate (). The distributor housing () includes an axial bore () extending in an axial direction through the distributor housing. The valve selector plate () is disposed in the axial bore () and is rotatable around a rotational axis () parallel to the axial direction between a first orientation and a second orientation. The valve selector plate () includes a first substantially planar face (), a second substantially planar face (), axial passages () radially offset from the rotational axis () and extending through the valve selector plate () from the first face () to the second face (), and at least one fluid blocking section () configured to block axial flow through the distributor assembly. Each fluid blocking section () is interposed between and radially aligned with the axial passages () with respect to the rotational axis (). A two-speed gerotor motor is also disclosed. 1. A distributor assembly for a two-speed gerotor device comprising:a distributor housing including an axial bore extending in an axial direction through the distributor housing; anda valve selector plate disposed in the axial bore and being rotatable about a rotational axis parallel to the axial direction between a first orientation and a second orientation, the valve selector plate including a first substantially planar face, a second substantially planar face, axial passages radially offset from the rotational axis and extending through the valve selector plate from the first face to the second face, and at least one fluid blocking section configured to block axial flow through the distributor assembly and interposed between and radially aligned with the axial passages with respect to the rotational axis.2. The assembly of claim 1 , wherein the valve selector plate is circular in a cross section taken normal to the axial direction and includes an inner annular section defining an inner edge of the axial passages ...

Подробнее
Номер записи: 29
04-07-2013 дата публикации

Vehicular power transmitting system

Номер: US20130170953A1
Автор: Fumitake Suzuki, Haruhiko Shibata, Hidenobu Yamaguchi, Kenichi Mori, Masahiko Suzuki, Masahiro Ito, Masashi Hattori, Naoki Okoshi, Yoshihiro Mizuno, Yusuke Ogata
Принадлежит: Aisin AW Co Ltd, JTEKT Corp, Toyooki Kogyo Co Ltd, Toyota Motor Corp

A vehicular power transmitting system including an oil pump constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount of first and second high-pressure passages of the oil pump is determined such that an amount of consumption of working oil of relatively high pressure can be afforded only by the high-pressure-port discharge amount, during steady-state running of a vehicle in which engine speed is not lower than a predetermined threshold value corresponding to a predetermined lowest target input shaft speed of a continuously variable transmission for its shifting control. The pressure of the working oil discharged from first and second low-pressure discharge passages is kept at a predetermined low level, and the required drive torque of the oil pump is sufficiently reduced.

Подробнее
Номер записи: 30
25-07-2013 дата публикации

Delivery unit

Номер: US20130189142A1
Автор: Evgenij Skrynski
Принадлежит: ROBERT BOSCH GMBH

A delivery unit is already known, which comprises a drive shaft and a rotor driven by the drive shaft. The rotor is rotatably arranged in a stator housing, wherein the rotor has a toothing on the end face of said rotor that is remote from the drive shaft, wherein said toothing meshes with a toothing constructed on the stator housing. The drive shaft comprises an oblique sliding plane interacting with the rotor and which is constructed on a shoulder of the drive shaft and allows the rotor to gyrate with the rotor axis thereof about the drive axis of the drive shaft. Work spaces are formed between the toothing of the rotor and the toothing of the stator housing, wherein said work spaces can be filled via an inlet and emptied via an outlet. In one embodiment the fluid is admitted axially and discharged radially, and in the other embodiment the fluid is admitted and discharged axially. For that purpose, control valves in the form of non-return valves are required. The non-return valves cause additional internal leakages, resulting in a reduction in the volumetric efficiency of the pump. The valves are additional parts, which are associated with additional costs and an increased risk of failure. In the delivery unit according to the invention the control valves can be dispensed with. According to the invention the inlet ( 15 ) is provided in a channel ( 20 ) of the drive shaft ( 2 ) and the outlet ( 16 ) is provided at the shoulder ( 6 ) of the drive shaft ( 2 ).

Подробнее
Номер записи: 31
22-08-2013 дата публикации

ROTARY LOBE PUMP WITH WIPER BLADES

Номер: US20130216417A1
Автор: Dixon Randy, Howell Brett
Принадлежит:

A positive displacement rotary pump with an improved impeller design integrating replaceable wiper inserts. The impeller generally has or more lobes and an equal number of conjugate surfaces. Each lobe has an arcuate peripheral end comprising a plurality of wiper blades. The wiper blades improve efficiency by making a seal with a pump chamber or the conjugate surface on the other impeller as it rotates. The wiper blades are arranged such that constant and successive contact between wiper blades and impellers is achieved. 1. A rotary pump , comprising:a pump chamber having an interior chamber wall;a first impeller and a second impeller disposed within said pump chamber, each of said impellers comprising:a hub located substantially in the center of said first impeller and said second impeller, wherein each of said hubs rotates around a central axis of each of said impellers;three or more lobes extending radially outward from each of said central axes, each of said lobes having a first end and a second end, said second end proximate to said central axis;said first end comprising a substantially arcuate periphery; anda substantially arcuate cut-out portion between each of said lobes on said impellers, each of said arcuate cut-out portions having a conjugate surface;each of said lobes comprising a plurality of wiper inserts, wherein each of said wiper inserts operatively engages a conjugate surface when each of said first ends of each of said lobes is proximate to each of said conjugate surfaces;wherein said plurality of wiper inserts are radially distributed about said substantially arcuate periphery such that at least one of said wiper inserts is in contact with at least one of said impellers throughout rotation of said impellers;a biasing means for providing a force to each of said wiper inserts in a direction radially outward from each of said central axes; anda drive means interconnected to each of said hubs, wherein said drive means rotates each of said hubs and ...

Подробнее
Номер записи: 32
05-09-2013 дата публикации

SEALING STRUCTURE FOR COMPRESSOR

Номер: US20130228982A1
Автор: OGAWA Satoshi
Принадлежит: Calsonic Kansei Corporation

A sealing structure for a compressor includes a cylindrical housing in which a compression unit is accommodated (one end of the housing is opened so as to form an opening), a header fixed to the housing to close the opening of the housing, a ring-shaped gland formed on an end face of the one end of the housing, an O-ring installed in the gland to seal between the housing and the header, and a fastening mechanism for fixing the header to the housing. The end face of the housing is separated, by the gland, into an outer face on an outer circumferential side and an inner face on an inner circumferential side. A step is formed between the outer face and the inner face. According to the above structure, sealing characteristics between the housing and the header can be improved. 1. A sealing structure for a compressor , the structure comprising:a cylindrical housing in which a compression unit is accommodated, one end of the housing being opened so as to form an opening;a header fixed to the housing to close the opening of the housing;a ring-shaped gland formed on an end face any one of the housing and the header;an O-ring installed in the gland to seal between the housing and the header; anda fastening mechanism for fixing the header to the housing, whereinthe end face is separated, by the gland, into an outer face on an outer circumferential side and an inner face on an inner circumferential side, anda step is formed between the outer face and the inner face.2. The sealing structure according to claim 1 , whereinone of the outer face and the inner face on a side of which the fastening mechanism is provided is protruded from a plane of another of the outer face and the inner face so as to form the step.3. The sealing structure according to claim 2 , whereinthe fastening mechanism is provided on a side of the outer face.4. The sealing structure according to claim 1 , whereina suction port for suctioning refrigerant into an inside of the housing or a discharge port for ...

Подробнее
Номер записи: 33
12-09-2013 дата публикации

Double-screw liquid pump

Номер: US20130236334A1
Автор: Yan Tang
Принадлежит: Shanghai Power Technology Screw Machinery Co Ltd

A double-screw liquid pump is provided, which is applicable to an Organic Rankin Cycle (ORC). The double-screw liquid pump includes a semi-sealed or fully sealed shell, and the shell includes a first cavity and a second cavity isolated from each other. A motor is disposed in the first cavity, and a main body part of a double-screw is disposed in the second cavity. At least one rotor of the double-screw is fixedly connected to a rotor of the motor, and the double-screw rotates through driving of the motor. A liquid refrigerant injection inlet and a refrigerant outlet are disposed on the first cavity, and the motor is cooled through evaporation of a liquid refrigerant; a liquid inlet and a liquid outlet are disposed on the second cavity. In the double-screw liquid pump applied to the ORC provided in the present invention, since a resistance torque of the female rotor is very small, the liquid pump does not wear even when the liquid viscosity is very low, contributing to good reliability, and thereby improving power generation efficiency of the ORC. In addition, the semi-sealed or fully sealed shell can effectively prevent leakage of the refrigerant.

Подробнее
Номер записи: 34
19-09-2013 дата публикации

VALVE OF A PISTON PUMP WITH A CLOSING BODY

Номер: US20130240773A1
Автор: Hennig Oliver, Zimmermann Marc
Принадлежит: ROBERT BOSCH GMBH

A valve of a piston pump, in particular for a hydraulic vehicle brake system, includes a closing body configured to be moved in an axially guided manner against a sealing seat. The closing body is formed in two pieces, which include a damping piston and a closing element inserted in the damping piston. 1. A valve of a piston pump , comprising:a sealing seat; anda closing body configured to be moved in an axially guided manner against the sealing seat,wherein the closing body is formed in two pieces, the pieces including a damping piston and a closing element inserted therein.2. The valve as claimed in claim 1 , wherein the closing element is formed with a head lying on a face of the damping piston and a shaft inserted in the damping piston.3. The valve as claimed in claim 1 , wherein a central depression is formed in the closing element on the end facing the sealing seat.4. The valve as claimed in claim 2 , wherein the closing element is retained on the damping piston by a catch.5. The valve as claimed in claim 2 , wherein the closing element is held on the damping piston with radial play created by a radial spacing of the shaft from the surrounding damping piston.6. The valve as claimed in claim 1 , wherein claim 1 , on the end of the damping piston facing towards the closing element claim 1 , at least one channel is formed through which an underflow claim 1 , directed radially from outside to inside claim 1 , of the closing element is possible.7. The valve as claimed in claim 6 , wherein the channel forms a segment of a flow connection through the damping piston to its other end.8. The valve as claimed in claim 6 , wherein a constriction is formed in the channel claim 6 , which forms a choke.9. The valve as claimed in claim 8 , wherein the channel is formed by a radially oriented groove formed in the damping piston claim 8 , an opening cross section of which groove is reduced in the axial direction at one point.10. A piston pump of a vehicle brake system claim 8 , ...

Подробнее
Номер записи: 35
03-10-2013 дата публикации

GEAR PUMP WITH ASYMMETRICAL DUAL BEARING

Номер: US20130259729A1
Автор: Alexander Philip T., Cate Joel E., JR. Robert Edward, Norton Neil V., Oehman, Rollins Mary B.
Принадлежит: Colfax Corporation

An asymmetrical bearing is disclosed for use in a gear pump. The bearing may have first and second opposing faces, and first and second bores in communication with the first and second opposing faces. The first and second bores may be configured to receive first and second shafts of a gear pump. The bearing may have a first flat side surface and a second curved side surface, where the second curved side surface includes first and second curved portions associated with the first and second bores, respectively. The first and second faces and the first flat side surface may also include a plurality of grooves configured to direct a flow of process fluid over the bearing during operation of the pump. Self-aligning features can be provided on one or more sealing elements to ensure desired alignment of the sealing components during assembly. Other embodiments are described and claimed. 1. A pump , comprisinga housing;a drive shaft having a first gear;a driven shaft having a second gear; and first and second opposing faces and first and second bores configured to receive the drive shaft and the driven shaft;', 'a first flat side surface and a second curved side surface, the second curved side surface having first and second curved portions associated with the first and second bores, respectively; and', 'a plurality of grooves in the first and second opposing faces and the first flat side surface, the plurality of grooves configured to direct a flow of process fluid over the bearing during operation of the pump., 'first and second asymmetrical bearings, each of the asymmetrical bearings having2. The pump of claim 1 , wherein the first and second bores of at least one of the asymmetrical bearings further includes a lubrication groove.3. The pump of claim 2 , wherein the lubrication groove is formed as a portion of a circle that is offset from a center of the respective bore by an offset distance claim 2 , and at an angle “α” with respect to a line perpendicular to the ...

Подробнее
Номер записи: 36
03-10-2013 дата публикации

Rotary pump with a vane provided in each pump outlet

Номер: US20130259730A1
Автор: Albert W. Patterson
Принадлежит: Individual

A pump housing has a cylindrical interior surface having outlets and a pair of side surfaces defining, in combination with the interior surface, a substantially cylindrical chamber. The surfaces have inlets. A rotor has a void, lobes and, for each lobe, a throughpassage. The rotor is positioned in the chamber such that the void communicates with the inlet to receive fluid and the throughpassage for each lobe provides communication between the void and chamber. The rotor is rotatably mounted in the chamber such that the lobes traverse the cylindrical surface. Provided for each outlet is a vane. As the rotor turns, the rotor outer surface is traversed by the vane to create, as the vane traverses a throughpassage, a chamber ahead of the vane which increases in volume and communicates with the throughpassage, and a chamber behind the vane which decreases in volume and communicates with the outlet port.

Подробнее
Номер записи: 37
17-10-2013 дата публикации

Transmission unit

Номер: US20130274048A1
Автор: Herbert Steinwender
Принадлежит: Magna Powertrain GmbH and Co KG

A transmission unit comprises a planetary wheel set, which comprises a plurality of gearwheel elements and is designed as a pump which effects delivery of hydraulic fluid from a suction zone to a pressure zone of a pump casing containing the planetary wheel set by means of the gearwheel elements. A controllable throttling device is provided in order to selectively throttle a fluid flow pumped between the suction zone and the pressure zone and thereby to brake the gearwheel elements of the planetary wheel set relative to one another. A fluid reservoir, which can be connected simultaneously to the suction zone and to the pressure zone via the throttling device, is arranged in a pump casing interspace formed between a plurality of gearwheel elements of the planetary wheel set.

Подробнее
Номер записи: 38
21-11-2013 дата публикации

Sliding vane positive displacement pump

Номер: US20130309114A1
Автор: Michael D. Walters
Принадлежит: Delaware Capital Formation Inc

A sliding vane, positive displacement pump is provided which uses a fixed disc configuration wherein a rotor includes a pair of discs affixed to opposite faces of the rotor so as to rotate with the rotor/shaft. Preferably, the discs each have an outer diameter proximate the outer diameter of the rotor and define an outer disc surface which faces radially outwardly towards an opposing, inside surface of the pump head or other casing structure. A dynamic seal is provided along the outside disc diameter which eliminates the formation of slip between end surfaces. The path of fluid traveling from the high pressure pump side near the outlet to the low pressure side of pump near the inlet is controlled with a radial clearance that is defined between the OD of each disc and the ID of the stationary head. This effectively eliminates direct slip paths extending radially across axially-directed end faces

Подробнее
Номер записи: 39
12-12-2013 дата публикации

INTERNAL GEAR PUMP

Номер: US20130330223A1
Автор: Loew Kornelius, Schepp Rene
Принадлежит: ROBERT BOSCH GMBH

An internal gear pump includes a ring gear and a pinion configured to mesh with the ring gear. The ring gear and pinion delimit a pump chamber extending from a suction region to a pressure region. The internal gear pump also includes an axial disk arranged on front faces of the ring gear and the pinion and includes a lubricant feed from the suction region between the axial disk and the ring gear and pinion. The lubricant feed includes a lubricant channel which passes through the axial disk. A wedge gap is delimited between the axial disk and the ring gear and pinion. The wedge gap communicates with the suction region and, when the ring gear and the pinion are driven in rotation, a lubricating film forms between the axial disk and the ring gear and pinion. 1. An internal gear pump , comprising:a ring gear;a pinion arranged eccentrically in the ring gear and configured to mesh with the ring gear in a circumferential section;a pump chamber delimited between the ring gear on an outside and the pinion on an inside, the pump chamber extending in a circumferential direction from a suction region to a pressure region outside the circumferential section in which the ring gear and the pinion mesh;at least one axial disk arranged on a front face of the ring gear and a front face of the pinion and configured to bear against the front faces of the ring gear and of the pinion, the at least one axial disk configured to be subjected to pressure on an outer side oriented away from the ring gear and the pinion and configured to delimit the pump chamber on one side; anda lubricant feed from the suction region between the at least one axial disk and the ring gear and/or the pinion.2. The internal gear pump as claimed in claim 1 , wherein:the lubricant feed includes a lubricant channel in the at least one axial disk, andthe lubricant channel is configured to communicate with the suction region of the internal gear pump and is configured to open, on an inner side of the at least one ...

Подробнее
Номер записи: 40
19-12-2013 дата публикации

HYDROSTATIC PISTON ENGINE HAVING A BRAKE DEVICE

Номер: US20130333369A1
Автор: Stoelzer Rainer
Принадлежит: ROBERT BOSCH GMBH

A hydrostatic piston engine includes an actuating element configured to actuate a brake device to produce a braking force on a rotor of the piston engine. The actuating element is configured to release the brake device when a hydraulic force acts on the actuating element. The hydraulic force prevails in a pressure chamber which is connected to a pressure medium source via a first throttle point. The pressure chamber is also configured to be connected to a pressure medium sink. The hydrostatic piston engine also includes a pressure retention valve device configured to open in a direction of the pressure medium sink. The pressure retention valve device is disposed between the pressure chamber and the pressure medium sink. The opening pressure of the pressure retention valve device is at least equal to the pressure in the pressure chamber which is necessary to release the brake device. 1. A hydrostatic piston engine comprising:a rotor;a brake device configured to produce a braking force on the rotor;an actuating element configured to actuate the brake device, the actuating element configured to release the brake device, when a hydraulic force is applied on a surface of the actuating element in a pressure space, the pressure space connected via a first throttle point to a pressure medium source, and the pressure space configured to be connected to a pressure medium sink; anda pressure-holding valve device configured to open in a direction of the pressure medium sink and arranged between the pressure space and the pressure medium sink,wherein an opening pressure of the pressure-holding valve device is at least equal to a pressure in the pressure space which is required to release the brake device.2. The hydrostatic piston engine as claimed in claim 1 , wherein:a second throttle point is formed parallel to the pressure-holding valve device, andthe pressure space is connected to the pressure medium sink via the second throttle point.3. The hydrostatic piston engine as ...

Подробнее
Номер записи: 41
19-12-2013 дата публикации

OUT ROTOR DRIVE ELECTRICAL VANE PUMP

Номер: US20130336808A1
Автор: Muizelaar Richard, Wang Liping, Williamson Matthew
Принадлежит: MAGNA POWERTRAIN OF AMERICA, INC.

A variable displacement vane oil pump for use in a vehicle powertrain includes a mechanical drive coupled to a first portion of a rotor and an electrical drive coupled to a second portion of the rotor such that the variable displacement vane pump may be driven by either or both the mechanical and electrical drives to achieve greater efficiency and control while maintaining oil pressure under all circumstances including start/stop conditions. The oil pump, when being driven by the mechanical drive only, remains coupled to the electric drive such that it rotates the motor of the electric drive to generate electricity that may be used to recharge a source of electricity such as a battery. The electric drive further includes a four phase controller for controlling the motor of the electric drive to efficiently operate the variable displacement vane oil pump without the use of a pressure relief valve. 1. A pump comprising:a housing having an inlet for receiving a supply of a fluid and an outlet for supplying the fluid at a pressure higher than the pressure of the fluid at the inlet;a mechanical drive coupled to the pump for operating the pump; andan electrical drive coupled to the pump for operating the pump wherein selectively the mechanical drive, the electrical drive or both mechanical and electrical drives may be used independently or in conjunction to operate the pump and control its fluid output.2. The pump of wherein the mechanical drive and the electrical drive are independently controllable.3. The pump of wherein the mechanical drive and electrical drive are independently operable at the same time.4. The pump of wherein the mechanical drive operates at a speed dependent upon the speed of an engine and the electrical drive operates at a speed independently of the speed of the engine.5. The pump of further comprising a variable displacement vane pump including a first inner rotor and a second outer rotor and wherein the mechanical drive comprises a shaft coupled ...

Подробнее
Номер записи: 42
02-01-2014 дата публикации

Pump Device

Номер: US20140003981A1
Автор: Chiharu Nakazawa, Toshihiro Koizumi
Принадлежит: HITACHI AUTOMOTIVE SYSTEMS LTD

A pump device has a motor rotation shaft and a pump rotation shaft whose end portion is connected to an end portion of the motor rotation shaft and which drives a pump unit. The pump device includes: an outer circumferential seal portion that is arranged at either one or both of radially outer sides of the end portion of the pump rotation shaft and the end portion of the motor rotation shaft so as to overlap with either one or both of the end portion of the pump rotation shaft and the end portion of the motor rotation shaft in axial directions of the pump rotation shaft and the motor rotation shaft and has an outer circumferential seal surface; and a seal unit that makes sliding contact with the outer circumferential seal portion.

Подробнее
Номер записи: 43
09-01-2014 дата публикации

Polyetherimide pump

Номер: US20140010697A1
Автор: Peter Haug
Принадлежит: SABIC INNOVATIVE PLASTICS IP BV

A positive displacement pump and methods of making a positive displacement pump having a component, the component having a density ranging from more than 0 to 3 g/cm 3 , a glass transition temperature (Tg) greater than or equal to 150° C., and a yield strength retention greater than 90% after soaking in engine oil for 7 days at 150° C.

Подробнее
Номер записи: 44
23-01-2014 дата публикации

ANTI-WEAR COATINGS FOR COMPRESSOR WEAR SURFACES

Номер: US20140024563A1
Автор: Caillat Jean-Luc M., Heidecker Matthew J.
Принадлежит:

Anti-wear surface coatings and methods for making them are provided. Such anti-wear surface coatings are particularly suitable for use in a compressor, such as a scroll or rotary compressor. A precursor powder material can be applied via spraying to a wear surface of a metal component of the scroll or rotary compressor. The precursor powder material comprises a powderized thermoplastic polymer (e.g., PEEK), a first lubricant particle (e.g., molybdenum disulfide (MoS)) and a second lubricant particle (e.g., polytetrafluoroethylene (PTFE)), which is heated to form a substantially uniform coating covering the underlying metal component having a thickness of less than or equal to about 0.006 inches (about 152 μm). The anti-wear surface coating can be used on a face seal for a bellows-type shaft seal for compressors. 1. A rotary compressor component comprising:a metal surface of the rotary compressor component defining a wear surface that comprises an anti-wear coating having a thickness of less than or equal to about 0.006 inches (about 152 μm), wherein the anti-wear coating comprises (i) a thermoplastic polymer; (ii) a first lubricant particle, and (iii) a second lubricant particle, wherein the first and second lubricant particles are distinct from one another.2. The rotary compressor component of claim 1 , wherein the thermoplastic polymer a polyaryletherketone (PAEK) thermoplastic polymer selected from the group consisting of: polyetherketone (PEK) claim 1 , polyetheretherketone (PEEK) claim 1 , polyetheretheretherketone (PEEEK) claim 1 , polyetherketoneketone (PEKK) claim 1 , polyetheretherketoneketone (PEEKK) claim 1 , polyetherketoneetheretherketone (PEKEEK) claim 1 , polyetheretherketonetherketone (PEEKEK) claim 1 , and combinations thereof.3. The rotary compressor component of claim 1 , wherein the thermoplastic polymer is selected from the group consisting of: a polyetheretherketone (PEEK) claim 1 , a polyaryletherketone (PAEK) claim 1 , a ...

Подробнее
Номер записи: 45
13-02-2014 дата публикации

ROTARY COMPRESSOR AND ROTATION MECHANISM

Номер: US20140044581A1
Автор: LI Hongshan, Li Qingwei, Liu Qiang, Mao Chunzhi, SU Xiaogeng
Принадлежит: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.

A rotary compressor, comprising: a housing (), comprising a lubricant oil storage part for containing lubricating oil; a compression mechanism () disposed in the housing (); a driving mechanism () driving the compression mechanism (), the driving mechanism () comprising a rotation shaft (), through-holes () extending along the axial direction of the rotating shaft () are disposed inside the rotating shaft (), and the rotation shaft () is in fluid connection with the lubricating oil storage part via the through-holes (); and an oil level sensor () in fluid connection with the through-holes () inside the rotation shaft () via a pressurized collection channel (). Also disclosed is a rotation mechanism, comprising an oil level sensor () in fluid connection with the through-holes () inside the rotation shaft () via the pressurized collection channel (). Accurate and reliable detection of the lubricating oil in a compressor can be done using the pressurized collection channel and the oil level sensor, thus greatly saving cost and improving compressor reliability. 1. A rotary compressor , comprising:a shell including an oil sump for receiving lubricating oil;a compressing mechanism disposed in the shell;a driving mechanism for driving the compressing mechanism, wherein the driving mechanism includes a rotary shaft provided therein with a through hole extending in an axial direction of the rotary shaft and the rotary shaft is in fluid communication with the oil sump via the through hole; andan oil level sensor in fluid communication with the through hole in the rotary shaft through a pressure picking passage.2. The rotary compressor according to claim 1 , further comprising a lower bearing housing for supporting the rotary shaft claim 1 ,wherein the pressure picking passage comprises:a pressure picking hole extending through a side wall of the rotary shaft and in fluid communication with the through hole in the rotary shaft,a circumferential oil groove formed on the rotary ...

Подробнее
Номер записи: 46
20-02-2014 дата публикации

Rotary pump exhibiting an adjustable delivery volume, in particular for adjusting a coolant pump

Номер: US20140050562A1
Автор: Claus Welte, Uwe Meinig
Принадлежит: Schwaebische Huettenwerke Automotive GmbH

An adjustable delivery volume rotary pump, including: first and second housing structures; a delivery chamber comprising a first chamber wall formed by the first housing structure, a second chamber wall formed by the second housing structure, a fluid inlet in a low-pressure region and a fluid outlet in a high pressure region; a pump wheel rotatable about a rotational axis in the delivery chamber; and a pressing device for generating pressing force. The second housing structure can be moved relative to the first housing structure from a first to a second position, against the pressing force. In the second position, a gap exists between the first and the second chamber walls and fluid can escape from the delivery chamber by bypassing the inlet and the outlet, or a circulation of the fluid which reduces the delivery rate of the rotary pump arises in the gap within the delivery chamber.

Подробнее
Номер записи: 47
20-02-2014 дата публикации

Sealing structure, vacuum pump motor including same sealing structure, and vacuum pump

Номер: US20140050605A1
Автор: Naoya Yoshida, Takanori Inada, Takashi Hozumi, Toshiharu Nakazawa, Yoshinori Ojima
Принадлежит: Ebara Corp

To provide a sealing structure for a vacuum pump motor which maintains the sealing properties of the vacuum pump motor in an ensured fashion, there is provided a sealing structure for a vacuum pump motor 100, including a lead wire 151 a which is passed through an opening portion 143 formed in a motor frame 140 to be connected to a motor stator 110 and a seal member 145 which seals the opening portion 143, wherein the lead wire 151 a includes a core wire portion 154 a and a covering portion 155 a which covers the core wire portion 154, and a seal portion 153 is formed in at least part of the core wire portion 154 a.

Подробнее
Номер записи: 48
27-02-2014 дата публикации

Suction Header Arrangement for Oil Management in Multiple-Compressor Systems

Номер: US20140056725A1
Автор: Bruce A. Fraser, Ronald J. Duppert, Wayne P. Beagle
Принадлежит: Bitzer Kuehlmaschinenbau GmbH and Co KG

A refrigeration system with two or more compressors configured to compress a flow of refrigerant with oil entrained therein. A suction flow piping arrangement is configured to supply a flow of refrigerant and oil to the two or more compressors. The suction flow piping arrangement has a suction header configured to carry the flow of refrigerant and oil, and a primary compressor supply conduit connected to the suction header. The primary compressor supply conduit supplies refrigerant and oil to a first compressor of the two or more compressors. A secondary compressor supply conduit branches off from the suction header. The secondary compressor supply conduit supplies refrigerant to a second compressor of the two or more compressors. The primary compressor supply conduit is configured to supply more oil to the first compressor than the secondary compressor supply conduit supplies to the second compressor.

Подробнее
Номер записи: 49
27-02-2014 дата публикации

Rotational clap suction/pressure device

Номер: US20140056747A1
Автор: Jong-Mun Kim
Принадлежит: Individual

The present invention relates to a simple and straightforward positive displacement suction/pressure device (rotational clap suction/pressure device) for utilizing in general industrial flow machines, such as various positive displacement pumps, vacuum pumps, compressors, flow meters, and rotary internal combustion engines. The object of the present invention using a double non-uniform rotation is to provide a simple and durable mechanical device having improved efficiency, by replacing the existing linear contact between various types of rotors or between a rotor and a housing, which is a problem in existing positive displacement flow machines and rotary internal combustion engines, with a whole surface.

Подробнее
Номер записи: 50
06-03-2014 дата публикации

ASYMMETRIC LOBES FOR MOTORS AND PUMPS

Номер: US20140064997A1
Автор: Benning Helmut G., Hohl Carsten
Принадлежит: BAKER HUGHES INCORPORATED

An apparatus for use in a wellbore may include a stator having a bore and a rotor disposed in the bore. Either or both of the rotor and the stator may include a layer that has an asymmetrical material property profile along at least a portion of a circumference of that layer. 1. An apparatus for use in a wellbore , comprising:a stator having a bore; anda rotor disposed in the bore, the stator and the rotor cooperating to form at least one fluid chamber and at least one seal at substantially the same time during relative rotation between the rotor and the stator,wherein a layer forming at least a portion of the at least one fluid chamber and portion of the at least one seal has an asymmetrical material property profile.2. The apparatus of claim 1 , wherein: the layer is formed on opposing sides of a lobe associated with the stator claim 1 , and the asymmetrical material property profile is across a circumference of an inner surface of the stator that includes the lobe.3. The apparatus of claim 1 , wherein: the layer is formed on opposing sides of a lobe associated with the rotor claim 1 , and the asymmetrical material property profile is across a circumference of an outer surface of the rotor that includes the lobe.4. The apparatus of claim 1 , wherein the layer is harder at the at least one fluid chamber than at the least one seal.5. The apparatus of claim 1 , wherein the at least one material property is at least one of: (i) hardness claim 1 , (ii) ductility claim 1 , (iii) compressibility claim 1 , (iv) Modulus of elasticity.6. The apparatus of wherein the at least one material property is at least one of: (i) a mechanical property claim 1 , and (ii) a chemical property.7. The apparatus of claim 1 , wherein the layer includes at least one of: (i) elastomeric material claim 1 , (il) a thermo-plastic material claim 1 , (iii) a ceramic material claim 1 , (iv) a metallic material claim 1 , (v) a composite claim 1 , and (vi) a duroplastic material.8. The apparatus of ...

Подробнее
Номер записи: 51
06-03-2014 дата публикации

Heating/cooling system for indwelling heat exchange catheter

Номер: US20140067027A1
Автор: Stelica Stelea, Wayne Noda
Принадлежит: Zoll Circulation Inc

A cooling system for an indwelling heat exchange catheter includes a heat exchange bath that is configured to receive a conduit that carries saline to and from the catheter. A heating/cooling fluid is in the bath and exchanges heat with the saline. The heating/cooling fluid flows through a heat exchanger that includes a refrigerant and two variable speed DC compressor for removing heat from the refrigerant. A gear pump circulates the working fluid to and from the catheter and is removably engaged with a pump support platform.

Подробнее
Номер записи: 52
03-04-2014 дата публикации

VACUUM PUMP STATORS AND VACUUM PUMPS

Номер: US20140093412A1
Автор: Stones Ian David
Принадлежит: EDWARDS LIMITED

Combined booster and primary pump arrangements can be bulky and require separate supplies of purge gas and cooling water. In order to overcome this problem invention provides a vacuum pump in which two or more pumping mechanisms, i.e. the booster pump and main pump, are housed in the same stator. The invention further provides a vacuum pump stator comprising at least two operatively interconnected cavities, wherein at least two of the cavities each comprise at least one rotor-receiving portion shaped to receive two or more at least partially intermeshing rotors, and wherein an axis of a rotor-receiving portion of a first one of the cavities is offset with respect to an axis of a rotor-receiving portion of a second one of the cavities. 1. A vacuum pump stator comprising at least two cavities , wherein at least first cavity of the at least two cavities and a second cavity of the at least two cavities each comprises a respective rotor-receiving portion shaped to receive at least one pair of intermeshing rotors , and wherein an axis of the respective rotor-receiving portion of the first cavities cavity is offset with respect to an axis of the respective rotor-receiving portion of the second cavity.2. The vacuum pump stator of claim 1 , wherein the at least two cavities are operatively interconnected by a conduit.3. The vacuum pump stator of claim 2 , wherein the conduit extends through a body of the vacuum pump stator to interconnect two cavities of the at least two cavities.4. The vacuum pump stator of any of claim 2 , or claim 2 , wherein at least one cavity of the at least two cavities comprises a plurality of axially aligned claim 2 , and interconnected claim 2 , rotor-receiving portions.5. The vacuum pump stator of claim 4 , wherein each of the plurality of axially aligned claim 4 , and interconnected claim 4 , rotor receiving portion is adapted claim 4 , in use claim 4 , to receive a pair of intermeshing rotors claim 4 , a first rotor of each pair of intermeshing ...

Подробнее
Номер записи: 53
06-01-2022 дата публикации

Rotary Piston Machine and Method for Producing a Seal in a Rotary Piston Machine

Номер: US20220003117A1
Автор: Bombardi Jakob, Bungart Merlin
Принадлежит:

A rotary piston engine and a method for manufacturing a sealing in a rotary piston engine are described. The rotary piston engine has at least two piston pairs respectively connected via a link, the pistons of which are arranged at opposite ends of the links and, during operation, circulate on an at least approximately circular path in a piston housing, such that varying working volumes are enclosed between the pistons of different piston pairs during the circulation and that, via a sealing provided between the piston housing and the pistons, a fluid flow between the enclosed working volumes is at least impeded. The technical solution described is characterized in that the sealing is formed by a gap between the pistons and the piston housing and surfaces of the pistons and the piston housing delimiting the gap at least at times are irregularly structured. 120.-. (canceled)21124345732653. A rotary piston engine () with at least two piston pairs () respectively connected via a link () , the pistons () of which are arranged at opposite ends of the links () and , during operation , circulate on an at least approximately circular path in a piston housing () , such that varying working volumes () are enclosed between the pistons () of different piston pairs () during the circulation , and with a sealing () provided between the piston housing () and the pistons () , which at least impedes a fluid flow between the enclosed working volumes ,{'b': 6', '8', '3', '5', '8', '9', '10', '3', '5', '8, 'characterized in that the sealing () is formed by a gap () between the pistons () and the piston housing (), in which no sealing elements are arranged, and that the gap () is designed such that leakage flows between neighboring working spaces are minimized, wherein surfaces (, ) of the pistons () and of the piston housing () delimiting the gap () at least at times have a surface structure generated directly upon commissioning by means of a running-in or grinding-in, resp., process.'} ...

Подробнее
Номер записи: 54
05-01-2017 дата публикации

TROCHOID PUMP FOR TRANSFERRING HIGH-VISCOSITY LIQUID UNDER HIGH PRESSURE

Номер: US20170002810A1
Автор: EOM Boon Do, KIM Hee Kyun
Принадлежит:

Disclosed is a trochoid pump for transferring high-viscosity liquids under high pressure. The trochoid pump includes an idler coupled to an inner through-hole inside a housing to be rotated, a rotor inserted into an inside of the idler, and a shaft configured to rotate the rotor, wherein the idler is provided with an inner toothed groove, into which the rotor is inserted and which has a plurality of projecting teeth, and recessed grooves, which are recessed with a predetermined depth along an outer circumferential surface thereof in a circumferential direction. Unlike an existing gear pump or trochoid pump, the trochoid pump for transferring high-viscosity liquids can reduce a viscous friction force, and can reduce the driving power. 1. A trochoid pump comprising:an idler rotatably coupled to an inner through-hole on an inside of a housing, a rotor inserted into an inside of the idler, and a shaft rotating the rotor,wherein the rotor is inserted into the idler and the idler has an inner toothed groove having a plurality of projecting gear teeth formed thereon, and a recessed groove formed on an outer circumference with a predetermined depth in a circumferential direction.2. The trochoid pump according to claim 1 , wherein the at least one recessed groove is formed on a center portion of the outer circumference of the idler claim 1 , and front and rear circular grooves are formed at front and rear ends that come in contact with an end portion of the rotor on an outer circumference of the idler.3. The trochoid pump according to claim 2 , wherein the front and rear circular grooves are formed to be deeper than the recessed groove.4. The trochoid pump according to claim 1 , wherein the outer circumference of the idler is spaced apart from an inner circumference of the inner through-hole of the housing to form a gap between them.5. The trochoid pump according to claim 1 , wherein the rotor is constructed so that a plurality of gears are formed on an outer circumference ...

Подробнее
Номер записи: 55
05-01-2017 дата публикации

ELECTRO HYDROSTATIC ACTUATORS

Номер: US20170002845A1
Автор: Grand Serge, LESAGE Emmanuel
Принадлежит:

An electro hydrostatic actuator comprises a hydraulic pump driven by an electric motor to supply hydraulic fluid to a hydraulic actuator. The pump comprises an inlet and an outlet for the hydraulic fluid and an active flow path arranged therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet. The pump further comprises a bypass flow path arranged to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet. 1. An electro hydrostatic actuator comprising:an electric motor; and an inlet and an outlet for the hydraulic fluid and an active flow path arranged therebetween such that, in an active mode of operation when the pump is driven by the electric motor, hydraulic fluid is actively drawn in through the inlet and exhausted out through the outlet; and', 'a bypass flow path arranged to open between the inlet and outlet such that, in a damping mode of operation when the pump is not driven by the electric motor, hydraulic fluid is able to pass through the pump along the bypass flow path between the inlet and outlet., 'a hydraulic pump driven by the electric motor, the pump configured to supply hydraulic fluid to a hydraulic actuator, the pump comprising2. An electro hydrostatic actuator according to claim 1 , wherein the bypass flow path is arranged to automatically open when the pump is not driven by the electric motor.3. An electro hydrostatic actuator according to claim 2 , wherein the pump further comprises a resilient member arranged to automatically open the bypass flow path when the pump is not driven by the electric motor.4. An electro hydrostatic actuator according to claim 1 , wherein the size of the bypass flow path is adjusted during manufacture and/or ...

Подробнее
Номер записи: 56
07-01-2016 дата публикации

Control Of Variable Displacement Vane Pump Used As Scavenge Pump

Номер: US20160003113A1
Автор: Claywell Mark R., Pryor Bryan K.
Принадлежит:

A system includes a first scavenge oil pump that draws oil from a first draw location within a vehicle according to a first variable displacement associated with the first scavenge oil pump. The first variable displacement is based on a first modified scavenge ratio assigned to the first scavenge oil pump. An oil pump control module determines a first scavenge ratio, determines a first scavenge ratio multiplier based on at least one of vehicle acceleration and vehicle orientation, and applies the first scavenge ratio multiplier to the first scavenge ratio to generate the first modified scavenge ratio. 1. A system comprising:a first scavenge oil pump that draws oil from a first draw location within a vehicle according to a first variable displacement associated with the first scavenge oil pump, wherein the first variable displacement is based on a first modified scavenge ratio assigned to the first scavenge oil pump; andan oil pump control module that determines a first scavenge ratio, determines a first scavenge ratio multiplier based on at least one of vehicle acceleration and vehicle orientation, and that applies the first scavenge ratio multiplier to the first scavenge ratio to generate the first modified scavenge ratio.2. The system of claim 1 , wherein the oil pump control module sets a first duty cycle of a first solenoid associated with the first scavenge oil pump based on the first modified scavenge ratio.3. The system of claim 1 , wherein the vehicle orientation corresponds to at least one of pitch and yaw of the vehicle.4. The system of claim 1 , wherein the first draw location corresponds to a location in an oil pan.5. The system of claim 1 , wherein the oil pump control module determines the first scavenge ratio multiplier using a scavenge ratio multiplier map.6. The system of claim 1 , wherein the oil pump control module determines the first scavenge ratio based on engine speed claim 1 , engine oil temperature claim 1 , and engine load.7. The system of ...

Подробнее
Номер записи: 57
07-01-2016 дата публикации

VANE PUMP

Номер: US20160003241A1
Автор: AKATSUKA Koichiro, Fujita Tomoyuki, KATO Fumiyasu
Принадлежит: KAYABA INDUSTRY CO., LTD.

A vane pump includes: a rotor; vanes; a cam ring; pump chambers; a suction port; a discharge port; back-pressure chambers; a discharge-side back pressure port configured to guide working fluid that is discharged from the discharge port to the back-pressure chambers; and suction-side back pressure ports configured to guide the working fluid to the back-pressure chambers. The suction-side back pressure ports are formed to be divided into a low-pressure port and a high-pressure port, the low-pressure port being configured to guide the working fluid in the suction port to the back-pressure chambers, and the high-pressure port being configured to guide the working fluid that is discharged from the discharge port to the back-pressure chambers. The high-pressure port is arranged at the forward-side of the low-pressure port in rotating direction of the rotor. 1. A vane pump that is used as a fluid pressure source , comprising:a rotor configured to be rotationally driven;a plurality of slits formed in a radiating pattern so as to open to an outer circumference of the rotor;vanes slidably received in the respective slits;a cam ring that has an inner circumferential cam face with which tip portions of the vanes slidingly contact, the tip portions being end portions of the vanes in direction projecting from the slits;pump chambers defined by the rotor, the cam ring, and the adjacent vanes;a suction port configured to guide working fluid that is to be sucked to the pump chambers;a discharge port configured to guide the working fluid that is discharged from the pump chambers;back-pressure chambers formed in the slits, the back-pressure chambers being partitioned by base-end portions of the vanes, the base-end portions being end portions at the opposite side from the tip portions;a discharge-side back pressure port configured to guide the working fluid that is discharged from the discharge port to the back-pressure chambers in a discharge section in which the pump chambers are in ...

Подробнее
Номер записи: 58
07-01-2016 дата публикации

Oil pump and power transmitting device equipped with the same

Номер: US20160003245A1
Автор: Nobukazu Ike, Yuichi Seki, Yusuke Takahashi
Принадлежит: Aisin AW Co Ltd

A driven sprocket of a chain driving mechanism is fixed to a rotation shaft between a front pump cover and a converter housing, and the rotation shaft is supported by a first supporting hole of the front pump cover and a second supporting hole of a rear pump cover. The movement of the driven sprocket in such a direction that it approaches the converter housing is restricted by a case side projection formed on the converter housing, and the movement of the driven sprocket in such a direction that it separates from the converter housing is restricted by a cover side projection formed on a bottom surface of the second supporting hole.

Подробнее
Номер записи: 59
04-01-2018 дата публикации

INTERNAL GEAR PUMP

Номер: US20180003173A1
Автор: CHENOUX MATHIEU, Cornet Albert
Принадлежит: SAFRAN AERO BOOSTERS S.A.

An internal gear pump includes a pinion, a ring arranged around the pinion, and a cylindrical wall arranged around the ring. A support element, on which the pinion and the ring are supported, carries high-pressure liquid towards a recess located at the junction between the ring and the cylindrical wall, and also carries low-pressure liquid towards another recess located at another point of the junction between the ring and the cylindrical wall. The recess allows the load of the ring on the cylindrical wall to be reduced. 1. An internal gear pump comprising:a pinion capable of rotating about a first axis of rotation;a ring arranged around the pinion, having a cylindrical periphery and being configured to rotate about a second axis of rotation that is different to the first axis of rotation and parallel thereto, the pinion and the ring being arranged to delimit a work space comprising a high-pressure space and a low-pressure space;a first support element arranged on a first side of the ring to limit the movement thereof in a first sense along a first orientation that is substantially parallel to the first and second axes of rotation;a second support element arranged on a second side of the ring to limit the movement thereof in a second sense that is opposite the first sense and in the first orientation;a cylindrical wall arranged around the ring to limit the movement thereof in a plane that is substantially perpendicular to the second axis of rotation;a first high-pressure recess in an arc of a circle and in fluid contact with a first portion of the cylindrical periphery of the ring;a first low-pressure recess in an arc of a circle and in fluid contact with a second portion of the cylindrical periphery of the ring, the first high-pressure recess and the first low-pressure recess being separated;a first high-pressure conveying means forming a fluid connection between the high-pressure space and the first high-pressure recess; anda first low-pressure conveying means ...

Подробнее
Номер записи: 60
04-01-2018 дата публикации

Design and Method to Improve Downhole Motor Durability

Номер: US20180003174A1
Автор: Ba Samba, Cariveau Peter T.
Принадлежит:

Rotor and/or stator designs and methods thereof to improve progressive cavity motor or pump durability. In one or more implementations, the rotor may have a variable outer diameter or variable stiffness along an axial length thereof. The stator may similarly have a variable inner diameter or variable stiffness, which may compliment or diverge from the variable outer diameter or variable stiffness of the rotor. 1. A progressive cavity motor or pump , comprising:a stator with an internal axial bore therethrough, the internal axial bore having an inwardly facing surface with axial lobes arranged and designed to form a stator helical profile; anda rotor with an outer surface having axial lobes arranged and designed to form a rotor helical profile that is at least partially complimentary to the stator helical profile; the rotor being rotationally disposed within the internal axial bore of the stator; the axial lobes of the rotor numbering at least one less than the axial lobes of the stator to form a moving chamber between the rotor and stator; the rotor having a diameter that varies along an axial length thereof, the diameter of the rotor proximate an uphole end portion thereof being no greater than at a downhole end portion thereof.2. The progressive cavity motor or pump of wherein claim 1 ,the diameter of the rotor proximate the downhole end portion thereof is greater than at an uphole diameter.3. The progressive cavity motor or pump of wherein claim 1 ,the diameter of the rotor intermediate the uphole end portion and the downhole end portion is a minimum diameter.4. The progressive cavity motor or pump of claim 3 , wherein claim 3 ,rotor stiffness proximate the minimum diameter is less than elsewhere along the axial length of the rotor.5. The progressive cavity motor or pump of claim 1 , wherein claim 1 ,the rotor is constructed of the same materials at the uphole end portion as at the downhole end portion.6. The progressive cavity motor or pump of wherein claim 1 , ...

Подробнее
Номер записи: 61
04-01-2018 дата публикации

VANE CELL PUMP WITH A SUB-VANE REGION TO WHICH PRESSURE CAN BE APPLIED

Номер: US20180003176A1
Автор: Welte Claus
Принадлежит:

A vane cell pump, includes a rotatable rotor having vanes which can be moved back and forth; an end plate with a pressure passage for discharging pressure fluid and a supply passage for supplying a sub-vane region with pressure fluid; a flow channelling device on an end face of the end plate facing axially away from the rotor; a first outlet region for discharging a first partial flow of the pressure fluid; a second outlet region for discharging a second partial flow of the pressure fluid; a first flow path along which the first partial flow flows through the first outlet region; a second flow path connecting the pressure passage to the supply passage, diverges from the first flow path and is delineated by the flow channelling device; and a third flow path connecting the supply passage to the second outlet region and delineated by the flow channelling device. 1. A vane cell pump , comprising:a rotor which can be rotated about a rotational axis, and one or more vanes which can each be moved back and forth in a respective vane receptacle of the rotor;a cam structure which surrounds the rotor and, when the rotor is rotationally moved, guides the vane(s) such that delivery cells which periodically increase and decrease in size are formed;an end plate axially facing the rotor and comprising a pressure passage for discharging pressure fluid and a supply passage for supplying a sub-vane region with pressure fluid;a flow channelling device on an end face of the end plate facing axially away from the rotor;a first outlet region for discharging a first partial flow of the pressure fluid flowing through the pressure passage;a second outlet region for discharging a second partial flow of the pressure fluid flowing through the pressure passage;a first flow path along which the first partial flow flows through the first outlet region;a second flow path which connects the pressure passage to the supply passage, diverges from the first flow path and is delineated by the flow ...

Подробнее
Номер записи: 62
02-01-2020 дата публикации

Adaptive self-sealing microfluidic gear pump

Номер: US20200003208A1
Автор: Anette E. Hosoi, Irmgard Bischofberger, Qing Zhang, Tianshi Fang, Yongbin Sun, Youzhi Liang
Принадлежит: Massachusetts Institute of Technology

A microfluidic pumping system configured to prevent backflow from an outlet of the system toward an inlet of the system. The microfluidic pumping system comprising a gear housing that has an inlet and an outlet and that houses a drive gear, an idler gear and a drive shaft. The system further includes a front end plate that is coupled to a first surface of the gear housing and a rear end plate that is coupled to a second, different surface of the gear housing. Also coupled to the gear housing is a first and second Halbach magnet arrays that is disposed between the front end plate and the rear end plate. The first and second Halbach magnet arrays include one or more solenoids and the first Halbach magnet array is disposed proximate to the drive gear and the second Halbach magnet array is disposed proximate to the idler gear.

Подробнее
Номер записи: 63
02-01-2020 дата публикации

OIL PUMP

Номер: US20200003209A1
Автор: ETO Takamitsu, Higuchi Koji, KATAOKA Shigehiro, KOBAYASHI Yoshiyuki
Принадлежит:

An oil pump includes a motor including a shaft disposed along a central axis extending in an axial direction, a rotor rotatable around the shaft, a stator disposed to face the rotor, a housing that accommodates the rotor and the stator, a pump including a pump rotor rotatable together with the shaft to suction and discharge oil, and a pump housing including an accommodation portion that accommodates the pump rotor. The pump housing includes an intake port through which the oil is suctioned, a discharge port through which the oil is discharged, and a pressure sensor disposed between the discharge port and the accommodation portion. 110-. (canceled)11. An oil pump comprising:a motor including a shaft disposed along a central axis extending in an axial direction, a rotor rotatable around the shaft, a stator disposed to face the rotor, and a housing that accommodates the rotor and the stator; anda pump including a pump rotor rotatable with the shaft to suction and discharge oil, and a pump housing including an accommodation portion that accommodates the pump rotor; whereinthe pump housing includes an intake port through which the oil is suctioned, a discharge port through which the oil is discharged, and a pressure sensor which is disposed between the discharge port and the accommodation portion.12. The oil pump according to claim 11 , whereinthe discharge port includes a first discharge port and a second discharge port; andthe pressure sensor is disposed between any one of the first discharge port and the second discharge port and the accommodation portion.13. The oil pump according to claim 12 , whereinin a state that the discharge port is fully opened, the second discharge port has a flow rate of the oil larger than a flow rate of the oil in the first discharge port; andthe pressure sensor is disposed between the accommodation portion and the second discharge port.14. The oil pump according to claim 12 , whereinthe pump includes a solenoid valve to adjust the flow ...

Подробнее
Номер записи: 64
02-01-2020 дата публикации

OIL PUMP

Номер: US20200003210A1
Автор: Higuchi Koji, KATAOKA Shigehiro, KOBAYASHI Yoshiyuki
Принадлежит:

An oil pump includes a motor including a shaft disposed along a center axis, a rotor rotating around the shaft, a stator disposed to face the rotor, a housing accommodating the rotor and the stator, and a pump. The pump includes a pump rotor rotating together with the shaft, and a pump housing including an accommodating portion that accommodates the pump rotor. The pump housing includes a suction port that suctions in oil, a discharge port that discharges oil, and a pressure sensor that detects hydraulic pressure of oil in a partial flow passage allowing communication between the discharge port and the accommodating portion. The pressure sensor is disposed outside the housing of the motor, and the housing includes a wall that blocks electromagnetic waves. 113-. (canceled)14. An oil pump , comprising:a motor including a shaft disposed along a center axis extending in an axial direction, a rotor rotating around the shaft, a stator disposed to face the rotor, and a housing accommodating the rotor and the stator; anda pump including a pump rotor rotating together with the shaft to suction and discharge oil, and a pump housing including an accommodating portion that accommodates the pump rotor; whereinthe pump housing includes a suction port that suctions in oil, a discharge port that discharges oil, and a pressure sensor that detects hydraulic pressure of oil in a flow passage allowing communication between the discharge port and the accommodating portion;the pressure sensor is disposed outside the housing of the motor; andthe housing includes a wall that blocks electromagnetic waves.15. The oil pump according to claim 14 , whereinthe pump is disposed on one side of the motor in an axial direction thereof; andthe pump housing includes a pump body including the accommodating portion that accommodates the pump rotor and further includes a side surface and a bottom surface positioned on another side of the motor in the axial direction, and a pump cover closing an opening ...

Подробнее
Номер записи: 65
07-01-2021 дата публикации

CARTRIDGE VANE PUMP AND PUMP DEVICE INCLUDING SAME

Номер: US20210003129A1
Автор: KONDOU Hirotoshi, SUGIHARA Masamichi
Принадлежит: KYB Corporation

A cartridge vane pump includes: a side plate brought into contact with first end surfaces of the rotor and the cam ring; a cover brought into contact with second end surfaces of the rotor and the cam ring, the cover attached to the body; and an O-ring provided in an outer circumference of the side plate, the O-ring being configured to seal a gap between the outer circumference of the side plate and an inner circumference of the body. The side plate has: a first flange portion configured to restrict movement of the O-ring towards the rotor side; a second flange portion configured to restrict movement of the O-ring towards an opposite side from the rotor. The first flange portion is formed to be able to compress the O-ring with the body in an axial direction of the driving shaft. 1. A cartridge vane pump configured to be accommodated in a body in an attachable and detachable manner , the cartridge vane pump comprising:a rotor linked to a driving shaft, the rotor being configured to be rotationally driven;a plurality of vanes provided in the rotor so as to be able to reciprocate in a radial direction of the rotor;a cam ring having an inner circumference cam face with which the plurality of vanes are brought into sliding contact;a side member brought into contact with first end surfaces of the rotor and the cam ring;a cover member brought into contact with second end surfaces of the rotor and the cam ring, the cover member being configured to be attached to the body; anda sealing member provided in an outer circumference of the side member, the sealing member being configured to seal a gap between the outer circumference of the side member and an inner circumference of the body, wherein a first restricting portion configured to restrict movement of the sealing member towards the rotor side;', 'a second restricting portion configured to restrict movement of the sealing member towards an opposite side from the rotor; and', 'an accommodating space defined by the first ...

Подробнее
Номер записи: 66
03-01-2019 дата публикации

ELECTRIC PUMP SYSTEM AND METHOD

Номер: US20190003477A1
Автор: Bellemare Eric, Dellal Benjamin, Graves Scott Michael, Silva Rodriguez Diego Alberto, Zhu Yufei
Принадлежит: Tesla, Inc.

An electric pump system and method of operating the same involves pumping a fluid through a fluid passageway defined in a mechanical pump from a pump inlet to a hollow shaft of a motor, through the hollow shaft to an internal motor cavity defined by a housing of the motor, and through another fluid passageway defined in the motor housing and mechanical pump that leads to a pump outlet. The system and method further involve pumping the fluid through another fluid passageway defined in the mechanical pump from yet another pump inlet to the pump outlet. The temperature of fluid exiting the hollow shaft can be assessed and used by an electronic control unit (ECU) of the electric pump system to control the same. The electric pump system can be part of a cooling and lubrication system for an electric vehicle transmission, gearbox, differential or transfer case, for example. 1. An apparatus comprising: a stator;', 'a rotor comprising a shaft; and', 'a housing around the stator and rotor and defining an internal motor cavity and a bypass inlet in fluid communication with the internal motor cavity;, 'a motor having a first side and a second side, the motor includingan electronic control unit connected to the first side of the motor;a mechanical pump connected to the second side of the motor and defining a first fluid passageway from a first pump inlet to a pump outlet; andwherein the motor housing and mechanical pump further defining a second fluid passageway from the internal motor cavity to the pump outlet via a second pump inlet.2. The apparatus of claim 1 , wherein the electronic control unit further comprises a thermistor.3. The apparatus of claim 1 , wherein the shaft is a hollow shaft that defines a shaft inlet and a shaft outlet claim 1 , wherein the mechanical pump defines a third fluid passageway from a third pump inlet to the shaft inlet claim 1 , and wherein the shaft outlet is in fluid communication with the internal motor cavity.4. The apparatus of claim 3 , ...

Подробнее
Номер записи: 67
03-01-2019 дата публикации

SELF ADJUSTING PUMP FOR ICE CREAM FREEZER

Номер: US20190003478A1
Автор: Bendixen Ole, Gyldenlöv Steen, Petersen Erik-J-Wolf
Принадлежит:

A self adjusting gear pump () for an ice cream freezer and a control unit () for adaptively controlling the closing pressure (PCLOSE) of a pump for an ice cream freezer. The gear pump system comprises a pump casing (), an inlet () for receiving a liquid food product of ice cream mix, an outlet () for transferring the ice cream mix into a freezing cylinder () of the ice cream freezer (), wherein the pump () is closed by supplying a closing air pressure onto a moveable pump cover () of the pump via at least one hole () provided straight through the pump casing (), thereby moving said moveable pump cover () against the star wheel () and a control unit () for supplying a calculated closing air pressure (PCLOSE) to the pump by means of the air pressure regulator (). 1. A control unit for adaptively controlling closing pressure of an inlet gear pump of an ice cream freezer , the inlet gear pump comprising a pump casing , an inlet for receiving a liquid food product of ice cream mix , and outlet for transferring the ice cream mix into a freezing cylinder of the ice cream freezer , the inlet being connected to an impeller driving a star wheel which in turn is connected to the outlet , wherein the pump is closed by supplying a closing air pressure onto a movable pump cover of the pump via at least one hole provided straight through the pump casing , thereby moving said movable pump cover against the star wheel , wherein the control unit is configured to:receive a first measure of liquid food product supply pressure at the inlet of the pump,receive a second measure of liquid food product outlet pressure at the outlet of the pump,calculate a closing air pressure being determined by the differential pressure between the liquid food product outlet pressure and the liquid food product supply pressure across the pump,supply the calculated closing air pressure to the moveable pump cover by means of an air pressure regulator via the at least one hole in the pump casing, thereby ...

Подробнее
Номер записи: 68
02-01-2020 дата публикации

Drive device

Номер: US20200007009A1
Автор: Shuhei Nakamatsu, Takayuki Migita, Yuki Ishikawa
Принадлежит: Nidec Corp

In a drive device, a housing includes an outer lid that covers one side in an axial direction of a motor shaft. A pump includes an external gear fixed to an end on one side in the axial direction of the motor shaft, an internal gear surrounding a radial outside of the external gear and meshing with the external gear, a pump room recessed from a surface on the other side in the axial direction of an outer lid toward one side in the axial direction, the pump room accommodating the internal gear and the external gear, a suction port through which the oil is to be sucked into the pump room, and a discharge port through which the oil is to be discharged from the pump room. The motor shaft includes a motor shaft body to which a rotor core is fixed and a closer fixed to the motor shaft body to overlap the internal gear, and close at least a portion of the opening on the other side in the axial direction of the pump room.

Подробнее
Номер записи: 69
12-01-2017 дата публикации

METHOD AND KIT FOR GEROTOR REPAIR

Номер: US20170008134A1
Автор: Stuckey George D.
Принадлежит:

An improved repair method and repair kit for gerotor pumps that have become damaged or worn in order to allow the pump to create a sound seal once more. 1. A method for improving gerotor performance comprising:inserting a wear plate within a gerotor assembly;providing a front cover piece which is placed overtop the gerotor; andperforming the above steps without removing a front cover of an engine.2. The method of claim 1 , wherein the wear plate is added to a rear of a gerotor case.3. The method of claim 1 , wherein the wear plate is shaped to conform to a front cover bottom of the engine.4. The method of claim 1 , wherein the wear plate is inserted to engage a lower surface of the gerotor.5. The method of claim 1 , wherein an upper surface of the gerotor engages a lower face of the front cover piece.6. The method of claim 1 , wherein the front cover piece defines openings that correspond to receiving openings in the front cover of the engine.7. The method of claim 1 , wherein the front cover piece has a lower face sized to accommodate a thickness of the wear plate.8. The method of claim 7 , wherein the lower face includes a channel or grove sized to offset the thickness of the wear plate.9. The method of claim 1 , wherein the method is performed without replacing gaskets or adding spacers to the gerotor assembly.10. A method for repairing an existing gerotor assembly in a vehicle comprising:removing a fan shroud, belt, fan clutch, and fan assembly from an engine;removing a harmonic balancer from the engine;removing a gerotor oil pump cover;removing a gerotor;removing a crankshaft seal wear ring;installing a gerotor wear plate;reinstalling the crankshaft seal wear ring;reinstalling the gerotor;installing a front cover piece that accommodates the wear plate;reinstalling the harmonic balance; andreinstalling the fan shroud, belt, fan clutch, and fan assembly.11. The method of wherein the gerotor assembly is repaired without removing an engine front cover.12. The ...

Подробнее
Номер записи: 70
14-01-2016 дата публикации

Internal Gear Pump

Номер: US20160009264A1
Автор: Alaze Norbert, Kurz Edgar, Schepp Rene, Speer Harald
Принадлежит:

The disclosure relates to an internal gear pump as a hydraulic pump for a slip-controlled vehicle brake system. The disclosure proposes to configure the internal gear pump as a pre-assembled module with a cartridge as housing, which can be pressed into a receptacle of a hydraulic block of the vehicle brake system. The cartridge has two steps which are parallel to one another for attaching a press-in ram and for orienting the cartridge in an angularly correct manner by means of the press-in ram, and a sealing surface, with which the cartridge bears in a sealed manner in the receptacle of the hydraulic block when the cartridge is pressed into the receptacle. 1. An internal gear pump for a hydraulic vehicle brake system , comprising:a preassembled module including a cartridge configured as a housing, the cartridge having a shoulder for angularly correct alignment by positive engagement.2. The internal gear pump as claimed in claim 1 , further comprising:a drive wheel positioned on one end of the cartridge, a diameter of the drive wheel being smaller than a diameter of the cartridge, wherein the drive wheel does not overlap the shoulder for angularly correct alignment of the cartridge, when viewed axially.3. The internal gear pump as claimed in claim 1 , the cartridge having two parallel surfaces extending in secant directions as a shoulder for angularly correct alignment by positive engagement.4. The internal gear pump as claimed in claim 3 , the cartridge having two mutually opposite parallel steps which are axially parallel with respect to the cartridge claim 3 , the two mutually opposite parallel steps being the two parallel surfaces of the shoulder for angularly correct alignment of the cartridge by positive engagement claim 3 , the two mutually opposite parallel steps further having radial surfaces situated in a radial plane of the cartridge and configured to press the cartridge into a socket.5. The internal gear pump as claimed in claim 1 , further comprising a ...

Подробнее
Номер записи: 71
08-01-2015 дата публикации

PUMP

Номер: US20150010419A1
Автор: Holtmann Ludger, Rosenkranz Kerstin
Принадлежит:

A pump has a suction region, a pressure region, and a pressure space which has an outflow region. A rotor is connected to a shaft in which rotor delivery elements are displacably received. The rotor has expelling regions connected to the pressure region by way of a first fluid path. A cold starting device is prestressed into a first functional position to shutoff a second fluid path from the pressure region to the pressure space, and is configured to be displaced counter to the prestress into a second functional position to open the second fluid path. The cold starting device is arranged in its second functional position at least in regions with a relief face which faces away from the pressure region in a relief receptacle. The relief face is loaded during operation of the pump with a pressure being smaller than a system pressure in the outflow region. 1. A pump comprising:at least one suction region and at least one pressure region;a pressure space which has an outflow region to a consumer;a rotor which is operatively connected to a shaft which rotates about a rotational axis, in which rotor delivery elements are received displaceably, as viewed in the radial direction;the rotor having expelling regions radially within the delivery elements, which expelling regions are connected at least partially to the pressure region by way of a first fluid path; anda cold starting device which comprises a cold starting element which is prestressed into a first functional position and, in its first functional position, shuts off a second fluid path from the pressure region to the pressure space, the cold starting element opening the second fluid path in a second functional position, the cold starting element being configured and arranged in such a way that it can be displaced counter to the prestress into its second functional position by way of a pump pressure which is generated in the pressure region during operation of the pump;wherein the cold starting element is arranged in ...

Подробнее
Номер записи: 72
08-01-2015 дата публикации

OIL PUMP

Номер: US20150010420A1
Автор: ODA Hiroyuki
Принадлежит:

An oil pump of the present invention includes a housing () which includes an inlet port () to suck oil, a discharge port () to discharge oil, and a purge port () to eject air-mixed oil, an inner rotor () which is arranged in the housing as being rotatable about a predetermined axis line (S), an outer rotor () which is arranged in the housing to be rotated as being interlocked with the inner rotor, and a filter member () which is arranged at the housing from the outside thereof to prevent foreign matter from entering through the purge port. According to the above, entering of foreign matter and the like can be prevented even when oil is sucked through the purge port. 1. An oil pump , comprising:a housing which includes an inlet port to suck oil, a discharge port to discharge oil, and a purge port to eject air-mixed oil with air mixed;an inner rotor which is arranged in the housing as being rotatable about a predetermined axis line;an outer rotor which is arranged in the housing to be rotated as being interlocked with the inner rotor; anda filter member which is arranged at the housing from the outside thereof to prevent foreign matter from entering through the purge port.2. The oil pump according to claim 1 ,wherein the purge port is arranged at a range capable of providing communication, concurrently with the inlet port, with a pump chamber defined by the inner rotor and the outer rotor.3. The oil pump according to claim 1 ,wherein the housing includes a housing body including a concave portion for containing the inner rotor and the outer rotor, and a housing cover which is connected to the housing body to close an opening of the housing body,the purge port is formed at the housing cover, andthe filter member is attached to the housing cover from the outside.4. The oil pump according to claim 1 ,wherein the inner rotor and the outer rotor include an upstream rotor including a first inner rotor and a first outer rotor and a downstream rotor including a second inner ...

Подробнее
Номер записи: 73
08-01-2015 дата публикации

Sealing Element for Rotary Compressor

Номер: US20150010421A1
Автор: Bradshaw Craig R., Orosz Joseph S., T. Kemp Gregory
Принадлежит: Torad Engineering, LLC

A sealing assembly for use in a rotary compressor having a housing and a rotor. The sealing assembly includes a sealing element and a spring positioned circumferentially around the sealing element. The sealing assembly is positioned in a slot formed in the housing, with at least one surface of the sealing element being beveled, and a cooperating mating surface of the slot being beveled. The force of the spring against the sealing element causes the sealing element to be forced into contact with at least one surface of the rotor (such as an inner surface of a rotor end plate). Alternatively, a sealing element can be provided that has elastic properties, the forces of which cause the sealing element to be forced into contact with the rotor. 1. A rotary compressor , comprising:a housing defining an internal cavity having an inner wall surface, wherein the housing has a housing longitudinal axis extending transverse to a housing plane that bisects the inner wall surface and wherein the housing further comprises a first sealing assembly;a rotor having a peripheral surface and being positioned within the internal cavity of the housing, the rotor configured to rotate about a rotor axis of rotation eccentric to the housing longitudinal axis, wherein the rotor has a first side surface and an opposed second side surface, and wherein the rotor further comprises a pair of end plates that are mounted to and rotate therewith the respective first and second side surfaces of the rotor; anda gate having a distal end, the gate being slidably mounted therewith the rotor and movable axially about and between a first position, in which the distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor, wherein the distal end of the gate is constrained to be spaced proximate from the inner wall surface of the housing as ...

Подробнее
Номер записи: 74
12-01-2017 дата публикации

Hydraulic Pump

Номер: US20170009769A1
Автор: Pawlik Robert A.
Принадлежит:

A hydraulic pump is described comprising a rotor provided for rotation about a longitudinal axis (X-X) within a housing. The pump comprises a plurality of chambers for pumping a fluid that are provided by longitudinally extending recesses in a circumferential outer surface of the rotor. During use the recesses are moved across a circumferential inner surface of the housing, and in so doing, are moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid. The hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing. The roller is positioned after the outlet port in a direction of the rotor's rotation and is arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port. 1. A hydraulic pump comprising a rotor provided for rotation about a longitudinal axis within a housing , the pump comprising:a plurality of chambers for pumping a fluid, the chambers being provided by longitudinally extending recesses in a circumferential outer surface of the rotor, the recesses being moved across a circumferential inner surface of the housing during rotation of the rotor, and in so doing, being moved over an inlet port in the housing to draw fluid into the chamber and then over an outlet port in the housing to discharge the fluid, whereinthe hydraulic pump further comprises a roller that is mounted in a longitudinally extending pocket of the housing, the roller being positioned after the outlet port in a direction of the rotor's rotation, the roller further being arranged to follow the outer surface of the rotor and seal against each recess as it is drawn past the roller, thereby directing fluid from the chamber into the outlet port.2. The hydraulic pump according to wherein the rotor comprises:a plurality of magnets which are able to generate a ...

Подробнее
Номер записи: 75
12-01-2017 дата публикации

Turbine engine provided with a lubrication unit

Номер: US20170009776A1
Автор: Bellal Waissi, Benoit Jean Henri Gomanne, Michel Gilbert Roland Brault, Thomas Chauveau
Принадлежит: Safran Aircraft Engines SAS

A turbine engine includes two rotary shafts and a lubrication unit. The lubrication unit has at least one pump which a casing inside of which a rotor is mounted and driven by one of the rotary shafts. The pump casing is rotated by the other rotary shaft such that the actuation of the pump depends on the difference between rotational speeds of the shafts. The shafts are a drive shaft and a fan shaft, respectively, wherein the fan shaft is driven by the drive shaft by means of a reduction gear which is lubricated by the lubrication unit. The reduction gear is annular and the pump passes axially therethrough.

Подробнее
Номер записи: 76
27-01-2022 дата публикации

ROTARY LOBE PUMP WITH INTERNAL BEARING

Номер: US20220025883A1
Автор: Ahrens Henrik, Krampe Paul
Принадлежит: VOGELSANG GMBH & CO. KG

A rotary lobe pump having a pump housing with a pump room, an inlet opening and an outlet opening, a first multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a first axis of rotation, a second multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a second axis of rotation spaced apart from the first axis of rotation and meshingly engages in the first rotary piston, wherein the first and second rotary pistons are drivable in opposite directions and are designed to generate a flow of a conveyed medium from the inlet opening through the pump room to the outlet opening by counter-rotation about the first and second axis of rotation, respectively, and a drive device, which is mechanically coupled to the rotary pistons for driving the rotary pistons. 124-. (canceled)25. A rotary lobe pump for conveying a particle-laden conveyed medium , comprising:a pump housing with a pump room;an inlet opening and an outlet opening;a first, multi-lobe rotary piston, which is arranged in the pump room and is rotatably mounted about a first axis of rotation;a second multi-lobe rotary piston, which is arranged in the pump room, and is rotatably mounted about a second axis of rotation spaced apart from the first axis of rotation and meshingly engages in the first rotary piston;wherein the first and the second rotary pistons are drivable in opposite directions and are designed to generate a flow of the conveyed medium from the inlet opening through the pump room to the outlet opening by counter-rotation about the first and second axis of rotation, respectively;a drive device arranged on one side of the pump housing, which is mechanically coupled to the rotary pistons for driving the rotary pistons;a first fixed axle body, which is arranged inside the first rotary piston and connected to the pump housing on the side of the drive device; andat least one first bearing for rotatably supporting the first rotary piston ...

Подробнее
Номер записи: 77
14-01-2016 дата публикации

VALVE TIMING CONTROL APPARATUS

Номер: US20160010516A1
Автор: Hattori Isao, Hayashi Masashi, SUZUKI Tomonori
Принадлежит:

A valve timing control apparatus includes a check valve, a filter, and a filter holding body. The check valve is placed between a camshaft and a vane rotor. The filter is placed between the camshaft and the check valve. The filter holding body includes a plurality of metal plates, which are stacked one after another. Two metal plates, which serve as enlarged space forming plates, are placed adjacent to the filter on one side of the filter where the camshaft is placed while each of the two metal plates includes enlarged through holes. A metal plate, which serves as an enlarged space forming plate, is placed adjacent to the filter on another side of the filter and includes enlarged through holes. A flow passage cross-sectional area of each enlarged through hole is larger than a flow passage cross-sectional area of a supply oil passage. 1. A valve timing control apparatus that is placed in a drive force transmission path , which transmits a drive force from a drive shaft of an internal combustion engine to a driven shaft , to adjust valve timing of a valve that is opened and closed by the driven shaft , wherein one of the drive shaft and the driven shaft serves as a first shaft while another one of the drive shaft and the driven shaft serves as a second shaft , and an oil passage , which opens in an end surface of the second shaft , serves as an external oil passage , the valve timing control apparatus comprising:a housing that is rotatable together with the first shaft; an advancing oil passage, which is communicated with the advancing chamber;', 'a retarding oil passage, which is communicated with the retarding chamber; and', 'a supply oil passage, which opens on a side where the second shaft is placed, wherein the supply oil passage is communicatable with the external oil passage;, 'a vane rotor that is placed along an extension of an axis of the second shaft and is rotatable together with the second shaft, wherein the vane rotor forms a vane, which partitions an ...

Подробнее
Номер записи: 78
14-01-2016 дата публикации

PUMPS

Номер: US20160010643A1
Автор: HAYES-PANKHURST Richard Paul
Принадлежит:

A pump is formed by a housing () having a fluid inlet () and a fluid outlet () and containing a rotor () forming with the housing () chambers () that, on rotation of the rotor () by a drive, convey fluid from the inlet () to the outlet () to pump the fluid. A seal assembly () is arranged between the outlet () and the inlet (). The seal assembly () includes a membrane () that contacts the rotor () and a flexible resilient spring member () that provides a force urging the membrane () against the rotor (). The spring member () thus, on rotation of the rotor (), moves radially relative to the axis of rotation of the rotor () and is arranged to provide a force on the rotor () via the membrane () that is constant and a minimum to maintain a seal between the rotor () and the seal () for a given outlet pressure of the pumped fluid. 1. A pump formed by a housing having a fluid inlet and a fluid outlet and containing a rotor forming with the housing chambers that , on rotation of the rotor , convey fluid from the inlet to the outlet to pump the fluid to the outlet at an outlet pressure , a seal assembly being arranged between the outlet and the inlet and , on rotation of the rotor , moving radially relative to the axis of rotation of the rotor to contact the rotor to prevent fluid passing from the outlet to the inlet in the direction of rotation of the rotor , the force applied by the seal assembly per unit distance of movement being constant (as herein defined) over the travel of the seal assembly to minimise the force applied by the seal assembly to the rotor for a given output pressure.2. A pump according to wherein said sealing force is generally constant along the axial length of the contact between the rotor and said seal.3. A pump according to wherein said sealing force is generally constant at all angular positions of the rotor4. A pump according to wherein the seal assembly includes a spring member of flexible resilient material claim 3 , the sealing member ...

Подробнее
Номер записи: 79
14-01-2016 дата публикации

PUMP WITH A RESILIENT SEAL

Номер: US20160010644A1
Автор: HAYES-PANKHURST Richard Paul, ROSS Peter William
Принадлежит:

A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor. 1. A pump comprising:a housing, the housing having an interior defining a rotor path;an inlet formed in the housing at a first position on said rotor path;an outlet formed in the housing at a second position on said rotor path spaced from said first position; at least one first surface formed on the rotor and sealing against said rotor path of the housing,', 'at least one second surface formed on said rotor circumferentially spaced from said at least one first surface and forming a chamber with the rotor path that travels around said rotor path on rotation of the rotor to convey fluid around the housing from the inlet to the outlet; and, 'a rotor rotatable in said housing,'} formed in one piece with the housing,', 'the seal and the housing comprising the same material,', 'the seal located on said rotor path and extending between the outlet and the inlet in the direction of rotation of said rotor, 'a resilient seal'}wherein the at least one first surface seals with, and resiliently deforms, the seal, as the rotor rotates around the rotor path within the housing to prevent fluid flow from said outlet to said inlet past the seal.2. A pump according to claim 1 , wherein the housing and ...

Подробнее
Номер записи: 80
14-01-2016 дата публикации

COMPACT STRUCTURE OF GEAR PUMP

Номер: US20160010645A1
Автор: Hakamada Naoki, Hashiba Takashi, Kawabata Tomoaki, Naganuma Takahiro
Принадлежит:

A gear pump apparatus includes a gear pump and a sealing mechanism which includes an annular rubber member, an outer member, and an inner member. One of the outer member and a casing of the gear pump apparatus has a contact member located outside a portion of the outer member which contacts the gear pump in a radial direction of the gear pump. The contact member is placed to create a physical contact between the outer member and the casing to absorb a part of force by which the outer member is pressed against the gear pump. This results in a decrease in pressure acting on an area of contact between the outer member and the gear pump, which leads to a drop in resistance to sliding between the gear pump and the outer member, thus decreasing a loss of torque required for the pumping operation of the gear pump. 1. A gear pump apparatus comprising:a gear pump which includes an outer gear and an inner gear meshing with the outer gear so as to define a plurality of cavities, the outer and inner gears being rotated through a drive shaft to suck and discharge fluid in a pumping operation;a casing which has defined therein a chamber in which the gear pump is disposed;a sealing mechanism which is disposed between an outer wall of the casing and said gear pump, said sealing mechanism working to create a hermetical seal between a low-pressure region and a high-pressure region, the low-pressure region including a suction side of the gear pump into which the fluid is sucked and a peripheral region of the drive shaft, the high-pressure region including a discharge side from which the fluid is discharged, said sealing mechanism including an annular rubber member, an outer member, and an inner member, the annular rubber member surrounding the low-pressure region to create a hermetical seal between the low-pressure region and the high-pressure region, the outer member being placed in contact with one of axially opposed ends of the casing and one of axially opposed ends of the gear ...

Подробнее
Номер записи: 81
14-01-2016 дата публикации

Rotary vane pump for generating a vacuum

Номер: US20160010646A1
Автор: Andreas Blank, Bernd Hess, Hans-Peter Ott, Martin Thoma, Torsten Helle
Принадлежит: Joma Polytec GmbH

A rotary vane pump for generating a vacuum, having an electric drive with a motor stator and a motor rotor, wherein the motor stator and the motor rotor radially encompass the pump housing. The motor stator is non-rotatably disposed around or on the pump housing. The motor rotor is disposed on the side of the motor stator facing away from the pump housing, such that an overall housing is provided that accommodates the electric drive and the pump housing, and the overall housing has a housing floor and a housing shell, wherein the housing floor, together with the pump housing delimits the pump chamber.

Подробнее
Номер записи: 82
11-01-2018 дата публикации

FUEL PUMP

Номер: US20180010606A1
Автор: FURUHASHI Daiji, SAKAI Hiromi
Принадлежит:

An outer gear and an inner gear expand and contract volume of pump chambers formed between both the gears, and rotate to suction fuel into the pump chambers and then discharge fuel from the pump chambers sequentially. The inner gear includes an insertion hole that is depressed along its axial direction. A joint member includes a main body portion that is fitted to a rotary shaft, a foot portion that extends from the main body portion along the axial direction and is inserted in the insertion hole with a clearance therebetween, and a protruding portion that protrudes from the foot portion toward a rotation progress side of the inner gear and has its width in the axial direction further narrowed toward a top portion of the protruding portion. 1. A fuel pump comprising:an outer gear that includes a plurality of internal teeth;an inner gear that includes a plurality of external teeth and is eccentric from the outer gear in an eccentric direction to be engaged with the outer gear;a pump housing that rotatably accommodates the outer gear and the inner gear;an electric motor that includes a rotary shaft which is rotary-driven; anda joint member that connects together the inner gear and the rotary shaft, wherein:the outer gear and the inner gear expand and contract volume of a plurality of pump chambers formed between both the gears, and rotate to suction fuel into the plurality of pump chambers and then discharge fuel from the plurality of pump chambers sequentially;the inner gear includes an insertion hole that is depressed along its axial direction; and a main body portion that is fitted to the rotary shaft;', 'a foot portion that extends from the main body portion along the axial direction and is inserted in the insertion hole with a clearance therebetween; and', 'a protruding portion that protrudes from the foot portion toward a rotation progress side of the inner gear and has its width in the axial direction further narrowed toward a top portion of the protruding ...

Подробнее
Номер записи: 83
11-01-2018 дата публикации

FUEL PUMP AND MANUFACTURING METHOD THEREOF

Номер: US20180010607A1
Автор: FURUHASHI Daiji, SAKAI Hiromi
Принадлежит:

A suction side end part of a suction guide passage and a discharge side end part of a discharge guide passage are opposed to each other with a gap therebetween. At a deviation angle at which contraction of a pump chamber starts, an outer peripheral part of the discharge side end part is formed along an inner tooth, and an inner peripheral part of the discharge side end part is formed along an outer tooth. A working tool that rotates and cuts circularly is moved around on a pump housing in a single continuous line to form an outline of the discharge guide passage, thereby forming the discharge guide passage. The working tool is moved around on the pump housing in a single continuous line to form an outline of the suction guide passage, thereby forming the suction guide passage. 1. A fuel pump comprising:an outer gear that includes a plurality of inner teeth;an inner gear that includes a plurality of outer teeth and is eccentric from the outer gear in an eccentric direction to be engaged with the outer gear; anda pump housing that rotatably accommodates the outer gear and the inner gear, wherein:the outer gear and the inner gear expand and contract volume of a plurality of pump chambers formed between both the gears, and rotate to sequentially suction fuel into the plurality of pump chambers and discharge fuel from the plurality of pump chambers; a sliding surface on which the outer gear and the inner gear slide;', 'a suction guide passage that suctions fuel into the plurality of pump chambers as a guide passage that is recessed from the sliding surface and extends in a circumferential direction of the pump housing; and', 'a discharge guide passage that discharges fuel from the plurality of pump chambers as the guide passage that is recessed from the sliding surface and extends in the circumferential direction;, 'the pump housing includesa suction side end part of the suction guide passage and a discharge side end part of the discharge guide passage are opposed to ...

Подробнее
Номер записи: 84
14-01-2021 дата публикации

DOSING PUMP SYSTEM

Номер: US20210010469A1
Автор: Ubidia Fernando A.
Принадлежит:

A compact, modular dosing pump system that is capable of microdose and macrodose volume flow rates, reduces or eliminates the need for additional flow control components such as temperature and pressure sensors, and utilizes a wider operational flow range than existing systems while maintaining the level of accuracy and precision exhibited by conventional dosing pump systems is provided. The dosing pump utilizes a a control system to deliver a range of fluid volumes. The control system monitors the motor emf voltage, calculates the flow rate, and makes adjustments to the pump motor voltage to precisely maintain the desired flowrate. 1. A pump system comprising: an inlet port;', 'an inlet flow channel providing fluid communication from the inlet port to the pump input;', 'an output flow channel in fluid communication with the pump output;', 'a bypass flow orifice;', 'a bypass loop valve, wherein the output flow channel provides a fluid path from the pump output to the bypass loop valve and the bypass loop valve is disposed downstream from the bypass flow orifice;', 'a return channel disposed downstream from the bypass loop valve, wherein the return channel is connected to the inlet flow channel and forms a fluid pathway between the bypass loop valve and the inlet flow channel;', 'an outlet branch connected to the output flow channel upstream from the bypass flow orifice;', 'an outlet flow orifice;', 'an outlet branch valve, wherein the outlet branch provides a fluid pathway from the pump output to the outlet branch valve and the outlet branch valve is disposed downstream from the outlet flow orifice; and', 'an outlet port disposed downstream from the outlet branch valve., 'a fluid pump having an pump input and a pump output in fluid communication with a fluid flow circuit wherein said flow circuit comprises2. The pump system of wherein claim 1 , the outlet flow orifice is connected to the outlet branch valve.3. The pump system of wherein claim 1 , the bypass flow ...

Подробнее
Номер записи: 85
10-01-2019 дата публикации

PUMP WITH ROTOR HAVING ARCUATE SLOTS AND VANES

Номер: US20190010942A1
Автор: CLARK Tyler J. E., Patterson Albert
Принадлежит:

A pump includes a shaft to rotate about a longitudinal axis, a rotor, at least two arcuate slots extending continuously into and through the rotor, wherein each of the slots is curved along a longitudinal slot axis, and at least two arcuate vanes, each of the vanes being shaped to be slidably seated in one of the slots, each of the vanes being movable in the corresponding slot between an extended position with the external edge of the vane adjacent the interior sidewall of the housing, and a retracted position wherein the external edge of the vane does not extend beyond the cylindrical surface of the rotor. Each of the vanes is spaced from an adjacent vane about the rotor such that there is always at least one vane positioned between the fluid inlet and fluid outlet ports. 1. A rotary pump comprising:a shaft to rotate about a longitudinal axis;a rotor centrally secured to the shaft, the rotor having a body with spaced ends and a cylindrical surface extending between the spaced ends;a rotor disk secured to each end of the rotor and secured at a centre of the rotor disk to the shaft;a housing encasing the shaft, the rotor disks, and the rotor within an internal cavity, the housing having interior end walls and an interior sidewall, with fluid inlet and fluid outlet ports in the interior sidewall, a first section of the interior sidewall of the housing being cylindrical and curved with a constant radius over an angle of about approximately 180°, the first section being spaced a constant distance from confronting sections of the cylindrical surface of the rotor, and a second section of the interior sidewall of the housing extending between the extremities of the first section of the interior sidewall, the cylindrical surface of the rotor being proximal to the interior sidewall of the housing between the fluid inlet and fluid outlet ports about midway along the second section, the fluid inlet and fluid outlet ports being located in the second section of the interior ...

Подробнее
Номер записи: 86
10-01-2019 дата публикации

AUTOMOTIVE ELECTRICAL OIL PUMP

Номер: US20190010943A1
Автор: MALVASI ALESSANDRO, SCHROEDER VIKTOR
Принадлежит: PIERBURG PUMP TECHNOLOGY GMBH

An automotive electrical oil pump includes an oil displacement pumping unit with a pump rotor which rotates in a pump chamber so as to pump a pressurized oil to an oil recipient, an electric driving motor which drives the pump rotor of the oil displacement pumping unit, an electrical connector plug which electrically connects the electric driving motor to a power source, and a fluid connector. The fluid connector includes a pump inlet which is fluidically connected to a chamber inlet, a pump outlet which is fluidically connected to a chamber outlet, a center front opening, and a ring front opening which is arranged coaxially to the center front opening. The center front opening and the ring front opening define the pump inlet and the pump outlet. 112-. (canceled)13. An automotive electrical oil pump comprising:an oil displacement pumping unit comprising a pump rotor which is configured to rotate in a pump chamber so as to pump a pressurized oil to an oil recipient;an electric driving motor configured to drive the pump rotor of the oil displacement pumping unit;an electrical connector plug configured to electrically connect the electric driving motor to a power source; and a pump inlet which is fluidically connected to a chamber inlet,', 'a pump outlet which is fluidically connected to a chamber outlet,', 'a center front opening, and', 'a ring front opening which is arranged coaxially to the center front opening,', 'wherein,', 'the center front opening and the ring front opening define the pump inlet and the pump outlet., 'a fluid connector comprising,'}14. The automotive electrical oil pump as recited in claim 13 , wherein claim 13 ,the fluid connector further comprises a first circular opening wall arranged coaxially to the center front opening, andthe first circular opening wall is configured to fluidically separate the center front opening and the ring front opening.15. The automotive electrical oil pump as recited in claim 13 , wherein claim 13 ,the fluid ...

Подробнее
Номер записи: 87
09-01-2020 дата публикации

VANE PUMP

Номер: US20200011326A1
Автор: Ima Akihiro, SAKIKAWA Shigenori, TAKANI Kunimitsu, YAMAOKA Yoshimune
Принадлежит:

The purpose of the present invention is to provide a vane pump that is able to prevent decrease of power transmission efficiency when the vane pump is used in combination with a device such as a transmission device, for example. Therefore, this vane pump () has a hollow shaft (), the hollow shaft () is configured such that a hollow portion thereof allows a rotation driving shaft (which is, for example, an input shaft of a transmission device as illustrated in , and, which also includes an input shaft which is inserted directly into the transmission device from a driving source without having a coupling interposed therebetween) of the driving source () to be inserted therethrough, and the hollow shaft () and the rotation driving shaft () are coupled by means of a mechanism (spline, key and key groove, etc.) for transmitting a torque but transmitting no thrust. 1. A vane pump comprising a hollow shaft , whereinthe hollow shaft is constructed such that a rotation driving shaft of a driving source can be inserted into a hollow portion; andthe hollow shaft and the rotation driving shaft are connected by a mechanism for transmitting a torque but transmitting no thrust.2. The vane pump according to claim 1 , whereina rotor is mounted on said hollow shaft.3. The vane pump according to claim 2 , whereinsaid hollow shaft and the rotor are mounted such that relative rotation is not possible and movement in an axial direction is limited by a wire ring; andthe wire ring is disposed in a mode across a shaft-side recess portion and a rotor-side stepped portion in a state where the shaft-side recess portion formed on said hollow shaft and the rotor-side stepped portion formed on the rotor are aligned.4. The vane pump according to claim 1 , whereina mechanical seal is provided on both end portions in the axial direction of said hollow shaft; anda circuit for allowing the mechanical seals on the both end portions to communicate is formed.5. The vane pump according to claim 1 , ...

Подробнее
Номер записи: 88
09-01-2020 дата публикации

Portable Fuel Pump

Номер: US20200014277A1
Автор: Jacob J. Berry
Принадлежит: Tuthill Corp

An illustrative embodiment of the present disclosure includes a pump having a rotor and a plurality of vanes. The rotor is attached to a motor that rotates it in first and second directions and is located in a cavity. The plurality of vanes are each pivotally coupled to the rotor so as the rotor rotates, the vanes selectively push fluid from an inlet port out through an outlet port. The plurality of vanes each have an end selected from the group consisting of a lobe, no lobe, and a rod located in the lobe. Each of the plurality of vanes also includes a pivot pin configured to fit in a corresponding receptacle located in the rotor so that each of the plurality of vanes is pivotable with respect to the rotor inside the cavity.

Подробнее
Номер записи: 89
19-01-2017 дата публикации

Gear pump and image recording apparatus

Номер: US20170015106A1
Автор: Masaaki Ando, Noritaka Mitsuo
Принадлежит: Seiko Epson Corp

To reduce frictional heat generated between a rotation shaft and a bearing portion in a gear pump in which the rotation shaft having a gear mounted thereon is received by the bearing portion and an image recording apparatus having the gear pump. Provided is a gear pump which has a rotation shaft, a bearing portion which receives the rotation shaft, and a gear which is mounted on the rotation shaft and rotates with the rotation shaft, in such a manner that the gear feeds liquid. Furthermore, at least either a concave portion or a convex portion is provided in at least either the rotation shaft or the bearing portion.

Подробнее
Номер записи: 90
15-01-2015 дата публикации

Rotary Compressor Having Gate Axially Movable With Respect To Rotor

Номер: US20150017046A1
Автор: Kemp Gregory T.
Принадлежит:

A rotary compressor having a housing and a rotor positioned within an internal cavity of the housing. The rotor being configured to rotate about a rotor axis of rotation eccentric to a housing longitudinal axis. A gate is also provided that is slidably mounted therewith the rotor and movable axially about and between a first position, in which a distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor. The distal end of the gate being constrained to be spaced proximate from the inner wall surface of the housing as the rotor rotates about the rotor axis of rotation. 1. A rotary compressor , comprising:a housing defining an internal cavity having an inner wall surface, wherein the internal cavity of the housing has a housing longitudinal axis extending transverse to a housing plane that bisects the inner wall surface;a rotor having a peripheral surface and being positioned within the internal cavity of the housing, the rotor configured to rotate about a rotor axis of rotation eccentric to the housing longitudinal axis, wherein the rotor has a first side surface and an opposed second side surface, and wherein the rotor further comprises a pair of end plates that rotate therewith the respective first and second side surfaces of the rotor; anda gate having a distal end, the gate being slidably mounted therewith the rotor and translates axially relative to the rotor about and between a first position, in which the distal end of the gate is positioned at a first distance from the peripheral surface of the rotor, and a second position, in which the distal end of the gate is positioned at a second distance from the peripheral surface of the rotor, wherein the distal end of the gate is constrained to be spaced proximate from the inner wall surface of the housing as the rotor rotates about the rotor ...

Подробнее
Номер записи: 91
03-02-2022 дата публикации

ELECTRIC OIL PUMP

Номер: US20220034315A1
Автор: Hashimoto Yutaka, Higuchi Koji, KUBO Kohei, MAKI Yoshiyuki
Принадлежит:

An electric oil pump includes a motor including a motor shaft, a pump assembly including a vane pump driven by the motor to suction and discharge oil, and an inverter to drive the motor. The motor includes a rotor, a stator on a side outward from the rotor in a radial direction, and a motor housing containing the rotor and the stator. The motor housing includes a suction port through which the vane pump suctions oil from outside, and a discharge port through which the vane pump discharges oil to outside. The motor housing includes flat surface portions in a portion of an outer periphery thereof. The suction port and the discharge port are located in a first surface of side surfaces which are the flat surface portions of the motor housing and are parallel or substantially parallel to the axial direction. 112-. (canceled)13. An electric oil pump comprising:a motor including a motor shaft extending along a central axis extending in an axial direction;a pump assembly including a vane pump which is on one side of the motor in the axial direction and is driven by the motor via the motor shaft to suction and discharge oil; andan inverter which is on another side of the motor in the axial direction to drive the motor; wherein a rotor which is rotatable together with the motor shaft;', 'a stator which is on a side outward from the rotor in a radial direction; and', 'a motor housing which houses the rotor and the stator;, 'the motor includes a suction port through which the vane pump suctions oil from outside; and', 'a discharge port through which the vane pump discharges oil to outside;, 'the motor housing includesthe motor housing includes flat surface portions in a portion of an outer peripheral shape thereof; andthe suction port and the discharge port are provided in a first surface of side surfaces which are the flat surface portions of the motor housing and are parallel or substantially parallel to the axial direction.14. The electric oil pump according to claim 13 , ...

Подробнее
Номер записи: 92
19-01-2017 дата публикации

Mounting structure for electric oil pump

Номер: US20170016442A1
Автор: Shinichiro Hazama, Shinsuke Isogai, Takashi Hashimoto, Toshiyuki Yokoi
Принадлежит: Aisin Seiki Co Ltd

A mounting structure for electric oil pump is provided to allow the electric oil pump to be mounted without through a communication pipe. The electric oil pump includes a pump unit having an inscribed gear pump, and a motor unit disposed adjacent to the pump unit and having a sensorless brushless DC motor for rotating the inscribed gear pump. A transmission accommodates the electric oil pump and includes a transmission case having an oil pan. The electric oil pump is attached to the transmission case with at least a through hole for supplying working oil to the pump unit being submerged in the working oil reserved in the oil pan.

Подробнее
Номер записи: 93
19-01-2017 дата публикации

Pump For Conveying A Liquid, In Particular An Exhaust-Gas Cleaning Additive

Номер: US20170016444A1
Автор: HODGSON JAN, KOPP YVES, MAGUIN GEORGES
Принадлежит:

A pump for conveying liquid includes a pump housing having an inlet, an outlet, an inner circumferential surface and a geometric axis. An eccentric in the housing is rotatable about the geometric axis relative to the housing. A deformable element is disposed between the inner circumferential housing surface and the eccentric. A delivery duct from the inlet to the outlet is formed by the deformable element and the inner circumferential housing surface. The deformable element is pressed against the housing by the eccentric in sections so that a displaceable seal of the duct and a closed pump volume in the duct are formed and are displaceable to convey the liquid along the duct from the inlet to the outlet by rotation of the eccentric. A receptacle, accommodating an edge region of the deformable element, is formed by the inner circumferential housing surface and a counter bracket. 110-. (canceled)11. A pump for delivering a liquid , the pump comprising:at least one pump housing having at least one inlet, at least one outlet, an inner circumferential surface and a geometric axis;an eccentric disposed within said at least one pump housing and rotatable relative to said at least one pump housing about said geometric axis;a deformable element disposed between said inner circumferential surface of said at least one pump housing and said eccentric, said deformable element having at least one edge region;a delivery duct formed from said at least one inlet to said at least one outlet by said deformable element and said inner circumferential surface of said at least one pump housing;said eccentric pressing said deformable element in sections against said at least one pump housing to form at least one displaceable seal of said delivery duct and at least one closed pump volume in said delivery duct;said at least one displaceable seal and said at least one closed pump volume being displaceable along said delivery duct from said at least one inlet to said at least one outlet by a ...

Подробнее
Номер записи: 94
21-01-2016 дата публикации

VARIABLE DISPLACEMENT VANE PUMP

Номер: US20160017884A1
Автор: AKATSUKA Koichiro, Fujita Tomoyuki, KATO Fumiyasu
Принадлежит: KAYABA INDUSTRY CO., LTD.

A variable displacement vane pump includes a rotor, vanes, a cam ring, pump chambers, a suction port, a discharge port, back pressure chambers, a plate that has a sliding contact surface and a penetrating hole, a suction-side back pressure port being configured to guide the working fluid in the suction port to the back pressure chambers in a suction section, a discharge-side back pressure port being configured to guide the working fluid that is discharged from the discharge port to the back pressure chambers in a discharge section, an additional groove provided on the sliding contact surface so as to extend from between the discharge-side back pressure port and the penetrating hole to between the suction-side back pressure port and the penetrating hole, and a connection groove that communicates the additional groove with the suction-side back pressure port.

Подробнее
Номер записи: 95
18-01-2018 дата публикации

Diverter Valve For Progressing Cavity Pump

Номер: US20180016871A1
Автор: Berry Douglas
Принадлежит: BAKER HUGHES INCORPORATED

A diverter valve housing is secured to an upper end of a pump. A shuttle in the diverter valve housing moves between an upper closed position and a lower open position. A floating ring has an exterior band that abuts an upper end of the shuttle to move the shuttle downward. The floating ring moves upward when the pump operates. A bushing abuts an upward facing shoulder in the floating ring and is adhered within the bushing by a layer of adhesive. The shuttle has upper and lower seals separated by upper and lower spacer rings. A stop ring between the spacer rings limits downward movement of the upper spacer ring and also limits upward movement of the lower spacer ring. 1. A well pumping apparatus , comprising:a pump having a rotatable drive member;a diverter valve housing secured to an upper end of the pump, the diverter valve housing having a sidewall containing at least one outlet port;a shuttle reciprocally carried in the diverter valve housing, the shuttle having an upper closed position blocking flow through the outlet port and a lower open position allowing flow through the outlet port;a spring in the diverter valve housing that urges the shuttle to the upper position;a flow tube secured to and extending upward from the diverter valve housing, the flow tube having a longitudinal axis and an upper end adapted to be secured to a string of production tubing;a connector rod secured to and extending upward from the drive member through the spring and the shuttle, the connector rod having an upper end with a rod coupling for connecting to a string of drive rods to rotate the drive member;a floating ring having a bore that receives the connector rod, the floating ring having an exterior band that abuts an upper end of the shuttle to move the shuttle downward toward the open position while the pump is shut off, the floating ring being upwardly movable in the flow tube relative to the shuttle in response to well fluid flowing upward from the pump while the pump is ...

Подробнее
Номер записи: 96
17-01-2019 дата публикации

SCREW PUMP

Номер: US20190017504A1
Автор: HONGO Yusuke, INOUE Masashi, KAMIYA Haruo, OKAJIMA Masahiro, TAKEUCHI Yasuhiro
Принадлежит:

A screw pump includes a male screw, a female screw, a motor, a journal, a bearing member, and a case. The motor includes an output shaft, which transmits a torque to the male screw, and the motor is operable to drive the male screw to rotate the same through the output shaft. The journal is rotatably placed between the output shaft of the motor and the male screw. The bearing member rotatably supports the journal. The case includes a screw receiving hole that receives the male screw and the female screw. The journal and the male screw are coaxially and non-detachably integrated together. The output shaft and the journal are fitted together by clearance fit that enables transmission of the torque between the output shaft and the journal. 1. A screw pump that pumps fluid from a suction inlet at a low pressure side to a discharge outlet at a high pressure side when a driving-side screw , which is one of a male screw or a female screw , and at least one driven-side screw , which is another one of the male screw or the female screw , are rotated while the driving-side screw and the at least one driven-side screw are meshed with each other , the screw pump comprising:the driving-side screw;the at least one driven-side screw;a drive device that includes an output shaft that transmits a torque to the driving-side screw, wherein the drive device is operable to rotate the driving-side screw through the output shaft;a journal portion that is rotatably placed between the output shaft of the drive device and the driving-side screw;a bearing portion that rotatably supports the journal portion; anda case that includes a screw receiving hole, which receives the driving-side screw and the at least one driven-side screw, wherein:the journal portion and the driving-side screw are coaxially and non-detachably integrated together; andthe output shaft and the journal portion are fitted together by clearance fit that enables transmission of the torque between the output shaft and the ...

Подробнее
Номер записи: 97
17-01-2019 дата публикации

AUTOMOTIVE ELECTRICAL OIL PUMP

Номер: US20190017505A1
Автор: MALVASI ALESSANDRO, SCHROEDER VIKTOR, WULF ANDREAS
Принадлежит: PIERBURG PUMP TECHNOLOGY GMBH

An automotive electrical oil pump which includes an oil displacement pumping unit with a pump rotor which rotates in a pump chamber to pump oil to an oil recipient, an electric driving motor which drives the pump rotor, an electrical connector plug which connects the electric driving motor to a power source, and a fluid connector. The fluid connector includes a pump inlet fluidically connected to a chamber inlet, a pump outlet fluidically connected to a chamber outlet, a first lateral circular ring opening which define the pump inlet or the pump outlet, and a second lateral circular ring opening or a circular front opening which defines the pump outlet or the pump inlet. The second lateral circular ring opening is provided separate from the first lateral circular ring opening. The pump outlet and the pump inlet are arranged coaxially to each other. 112-. (canceled)13. An automotive electrical oil pump comprising:an oil displacement pumping unit comprising a pump rotor which is configured to rotate in a pump chamber so as to pump a pressurized oil to an oil recipient;an electric driving motor configured to drive the pump rotor of the oil displacement pumping unit;an electrical connector plug configured to electrically connect the electric driving motor to a power source; and a pump inlet which is fluidically connected to a chamber inlet,', 'a pump outlet which is fluidically connected to a chamber outlet,', 'a first lateral circular ring opening which is configured to define the pump inlet or the pump outlet, and', 'a second lateral circular ring opening or a circular front opening which is configured to define the pump outlet or the pump inlet, the second lateral circular ring opening being provided separate from the first lateral circular ring opening,', 'wherein,', 'the pump outlet and the pump inlet are arranged coaxially to each other., 'a fluid connector comprising,'}141. The automotive electrical oil pump as recited in claim , wherein , the fluid connector is ...

Подробнее
Номер записи: 98
17-01-2019 дата публикации

OIL PUMP DRIVING DEVICE

Номер: US20190017588A1
Автор: KAWAI Masahiro, Sato Koji
Принадлежит: NTN CORPORATION

An oil pump driving device of which the oil pump can be driven by either of an engine and an electric motor, and which is short in axial dimension. The oil pump driving device includes a first one-way clutch for transmitting motive power from the engine only in one direction, and a second one-way clutch for transmitting motive power from the electric motor only in the above one direction. The first one-way clutch is disposed within an opening formed in a partition wall of a transmission case. The oil pump includes a rotor having an inner peripheral portion defining a hollow space. The second one-way clutch is disposed inside of the inner peripheral portion of the rotor. 1. An oil pump driving device comprising:a single oil pump including a rotor configured to receive motive power;a first one-way clutch configured to transmit motive power from an engine only in one direction;a second one-way clutch configured to transmit motive power from an electric motor only in said one, direction; anda transmission case having a partition wall formed with an opening, wherein:the first one-way clutch is disposed within the opening of the transmission case;the rotor has an inner peripheral portion defining a hollow space;the second one-way clutch is disposed inside of the inner peripheral portion of the rotor; andthe transmission case is coupled to the oil pump.2. The oil pump driving device of claim 1 , wherein the first one-way clutch includes a sprocket configured to transmit the motive power from the engine.3. The oil pump driving device of claim 2 , wherein the first one-way clutch further includes a clutch outer ring disposed within the opening of the transmission case claim 2 , and the sprocket is integral with the clutch outer ring.4. The oil pump driving device of claim 1 , wherein the first one-way clutch further includes an output shaft disposed within the opening of the transmission case claim 1 , andthe oil pump further includes a shaft connected to the output shaft ...

Подробнее
Номер записи: 99
21-01-2016 дата публикации

Electric motor, pump device using electric motor, and stator

Номер: US20160020659A1
Автор: Jun Takahashi
Принадлежит: Mikuni Corp

An electric motor, and the electric motor includes a stator core provided on a stator, a plurality of teeth provided on the stator core, a coil wound body attached to the tooth, an inner flange portion provided at an inner diameter side of a bobbin, a first engagement portion provided at one end side in a width direction of the inner flange portion, and a second engagement portion provided at the other end side in the width direction of the inner flange portion, the first engagement portion being provided to be located at an outer side in a diameter direction than the second engagement portion of the adjacent coil wound body in a moving direction, the second engagement portion being provided to be located at an outer side in a diameter direction than the first engagement portion of the adjacent coil wound body in a moving direction.

Подробнее
Номер записи: 100