ЦЕНТРОБЕЖНЫЙ НАСОС И СПОСОБ РЕГУЛИРОВКИ РАССТОЯНИЯ ИЗНОСОСТОЙКОЙ ПЛАСТИНЫ ОТ РАБОЧЕГО КОЛЕСА ЦЕНТРОБЕЖНОГО НАСОСА

FIELD: pumps.SUBSTANCE: invention relates to a centrifugal pump (1) for lifting clean water or water with suspended particles, comprising a hollow body (2) defining a central axis (L) and having a front hole (3) and a volute (4) with an inlet channel (5), an impeller (8) located in the body (2) configured to connect with the engine and having blades (9), wherein the upper edges (10) of the blades essentially lie in the same plane with the annular peripheral area (11). Also provided is a lid (12) for closing the front hole (3) comprised of a flange (13) with a central part (14) and a substantially radial peripheral part (16) of a substantially circular wear-resistant plate (19) rigidly connected to the flange (13) and located at a predetermined axial distance (d1) from the annular peripheral area (11) of the impeller (8) and from the adjusting tools (24) for controlled adjustment of the axial distance (d1) of the wear-resistant plate (19). The adjusting tools (24) are mounted on the flange (13) and can be accessed from the outside and are configured to calibrate the axial position of the wear-resistant plate (19) and to lock said plate in the calibrated position. Also described is a method of adjusting the axial distance (d1) of a wear-resistant plate (19) from an impeller (8) in a centrifugal pump (1).EFFECT: invention provides a simple and quick initial adjustment of the distance between a wear plate and an impeller, as well as technical maintenance.14 cl, 11 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 751 118 C2 (51) МПК F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 7/04 (2021.02) (21)(22) Заявка: 2019125336, 03.03.2017 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): ВАРИСКО С.Р.Л. (IT) Дата регистрации: 08.07.2021 Приоритет(ы): (22) Дата подачи заявки: 03.03.2017 (43) Дата публикации заявки: 05.04.2021 Бюл. № 10 (45) Опубликовано: 08.07.2021 Бюл. № 19 (85) ...

МАГИСТРАЛЬНЫЙ НЕФТЯНОЙ ЭЛЕКТРОНАСОСНЫЙ АГРЕГАТ И СПОСОБ УЛУЧШЕНИЯ ХАРАКТЕРИСТИК АГРЕГАТА

Группа изобретений относится к области перекачивания нефти в магистральных нефтепроводах. Агрегат содержит центробежный одноступенчатый насос двухстороннего входа, приводной электродвигатель, муфту, соединяющую их валы, и общую или раздельные рамы для крепления насоса и электродвигателя на них. Между корпусом и крышкой насоса установлен ротор. Рабочее колесо ротора посажено на вал посредством двухстороннего цангового зажимного устройства с коническими втулками и винтами, а его торцовые уплотнения - с помощью односторонних цанговых зажимных устройств с коническими втулками и винтами. Зажимные устройства представляют собой сочетание двух соосных колец с коническими рабочими поверхностями с возможностью смещения колец с помощью зажимных винтов вдоль оси вала относительно друг друга с зажимом вала. Ротор насоса установлен во внешних консольных опорах: сферическом двухрядном роликовом подшипнике и «плавающем» тороидальном роликоподшипнике. Подшипники установлены на валу на конических стяжных ...

ЦЕНТРОБЕЖНЫЙ НАСОС И МУФТА ДЛЯ СОЕДИНЕНИЯ ВАЛА ЦЕНТРОБЕЖНОГО НАСОСА С ВАЛОМ ПРИВОДНОГО ДВИГАТЕЛЯ

1. Центробежный насос, имеющий вал (18), крыльчатку на валу (18) и спиральный кожух, в котором размещена крыльчатка, при этом спиральный кожух прикреплен крепежным средством (16) к электрическому приводному двигателю (12), имеющему вал (20), при этом вал (18) центробежного насоса соединен с валом (20) электрического приводного двигателя (12) таким образом, что вал (20) приводного двигателя (12) поддерживает вал (18) и крыльчатку центробежного насоса, при этом вал (18) центробежного насоса (10) прикреплен к концу вала (20) электрического приводного двигателя (12) посредством отдельной регулируемой в осевом направлении соединительной муфты (24, 124, 224, 324, 424, 524), расположенной на валу (20) приводного двигателя (12), отличающийся тем, что вал (20) приводного двигателя (12) и отдельная, регулируемая в осевом направлении, соединительная муфта (24, 124, 224, 324, 424, 524) снабжены средством (26, 28, 36, 38, S, 568) для регулировки осевого положения регулируемой в осевом направлении соединительной муфты (24, 124, 224, 324, 424, 524) относительно вала (20) приводного двигателя (12).2. Центробежный насос по п. 1, отличающийся тем, что регулировочное средство содержит регулировочную гайку (26), расположенную в резьбовой связи (36, 38) с отдельной, регулируемой в осевом направлении, муфтой (24, 124, 224, 324, 424), при этом регулировочная гайка (26) расположена с возможностью прикрепления к валу (20) приводного двигателя (12) посредством стопорного винта (28) или посредством болта без головки и контрагайки.3. Центробежный насос по п. 1 или 2, отличающийся тем, что отдельная соединительная муфта (24, 124, 424, 524, 624) соединена с валом (18) центробежного насоса (10) посредством резьбы (42, 142, 442, 542, 642), расположенной на соединительной муфт� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F04D 1/00 (13) 2014 101 968 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014101968/06, 22.01.2014 (71) Заявитель(и): ...

Lagervorrichtung, Verdichter und Verfahren zur Herstellung solch einer Lagervorrichtung

Die Erfindung betrifft eine Lagervorrichtung, einen Verdichter und ein Verfahren, wobei ein erstes Radiallagerelement in zumindest radialer Richtung vermessen wird, wobei ein axialer Abstand des ersten Axiallagerelements zu dem ersten Radiallagerelement gemessen wird, wobei das zweite Radiallagerelement in zumindest radialer Richtung vermessen wird, wobei in Abhängigkeit der vordefinierten ersten Breite des Radialspalts das erste Radiallagerelement zu dem zweiten Radiallagerelement positioniert wird, wobei das Justiermittel derart angeordnet wird, dass der Axialspalt die vordefinierte zweite Breite aufweist.

Kreiselpumpe mit Axial- und Radialspieleinstellung ohne das Pumpengehäuse zu öffnen

Improvements in Centrifugal Pumps, for Pumping Sands, Ballast, Minerals, Sludges and the like.

... 18,857. Lush, F. M. Aug. 10. Wear, preventing and adjusting for.-In a oentrifugal pump for dealing with sludges, minerals, &c., the impeller A is formed as a hollow casting having outlets A<2>, the rearward walls a<@> of which are lined internally with wearing-plates a<3>. A flange a<2> on the open end of the impeller surrounds the suction pipe C, and bears against an adjustable wearing-ring D. Inspection and removal of the impeller A is facilitated by providing the casing F with a removable section E, and the liner G with a removable section g.

Sensor system for a pump impeller assembly

Centrifugal pumps

Centrifugal pump improvements

Exhaust assembly

Exhaust assembly 100 comprises a casing (102, fig 2) defining a chamber 104 containing a fan 106A, 106B. The casing comprises first 108 and second 110 removably coupled wind bands defining first 112 and second 114 open ends of the casing in which the fan induces flow from the first open end to the second open end. The wind bands may be identical to each other and may each comprise two bands wherein the first band has a uniform diameter and the second tapers towards the free end. The first wind band may comprise a base plate (130, fig 2) having planar section (132, fig 2) and cone 134 defining fluid inlet (136, fig 8) such to guide fluid flow from the open end to an impeller 106B of the fan; the base plate may comprise draining apertures (142, fig 8). The fan position may be adjusted via a mounting frame (148, fig 3) comprising a support bracket 152 having an arm 154 coupled to a plate 150 of a motor 106A. The motor may comprise a fan cover 162 having a motor cover 164 coupled to a cap 170 ...

A pump housing support

Liner coupling pin

SEAL FOR A CENTRIFUGAL PUMP

An adjustable side liner for a pump.

A pump housing support.

Liner coupling pin.

SEAL FOR A CENTRIFUGAL PUMP

SEAL FOR A CENTRIFUGAL PUMP

AN ADJUSTABLE SIDE LINER FOR A PUMP

LINER COUPLING PIN

A pump housing support

A pump housing support.

An adjustable side liner for a pump.

Liner coupling pin.

Liner coupling pin

Liner coupling pin.

Liner coupling pin

A pump housing support

A pump housing support.

An adjustable side liner for a pump.

STARRE WELLENKUPPLUNG ZUR DREHMOMENTUEBERTRAGUNG ZWISCHEN ZWEIER WELLENENDEN

ROTARY SHAFT SEAL.

Adjustment mechanism for pump seal

An adjustment mechanism (85) for a seal assembly (80) for a pump drive shaft (52) of a pump, the pump shaft (52) mounted for rotation about a rotation axis. The seal assembly (80) comprises a rotating seal (81) mounted for rotation with the drive shaft (52) about the rotation axis and a static seal (84) adjacent the rotating seal (81) and axially moveable relative thereto. The adjustment mechanism (85) comprises an adjustment member (87) which is axially moveable so as to cause axial movement of the static seal (84) relative to the rotating seal (81). The mechanism further includes an actuator (88) and a transmission (93) for transmitting a motive force from the actuator to the adjustment member as a result of activation of the actuator. The transmission (93) is operatively connected to the adjustment member (87) at two spaced apart couplings (98) whereby activation of the actuator causes simultaneous transmission of the motive force to the two spaced apart couplings. The actuator (88) ...

Centrigugal pump having adjustable clean-out assembly

A seal for a pump, and a pump comprising the seal

CENTRIFUGAL PUMP

VERTICAL CENTRIFUGAL PUMP

IMPELLER SHROUD

An impeller shroud is mounted in a cantilever manner to a stator assembly in a compressor for a gas turbine engine, wherein the impeller has a radial component, the impeller shroud being adapted for deflection around its outer portion in correspondence with deflection which may occur in the outer portion of the impeller. The stator assembly includes a shroud surrounding the compressor gas path and is directly fixed to the casing of the engine and has a common datum with the rotor portion of the compressor through a thrust bearing.

ADJUSTABLE SIDE LINER FOR PUMP

SIDE CHANNEL COMPRESSOR HAVING A SEAL ASSEMBLY

The invention relates to a side channel compressor for sealing a gas, comprising a housing (3) and at least one impeller (2), which is arranged in the housing and can be rotationally driven about a central axis (4). The side channel compressor further comprises at least one seal assembly (38) arranged in the housing (3) having at least one sealing device (47), which seals at least one gap (59) between the housing (3) and the at least one impeller (2) and forces the same radially outwards with respect to the central axis (4) in order to keep the at least one gap (59) small. The at least one seal assembly (38) further comprises at least one sealing device holding unit (46), which axially fixes the at least one sealing device (47) in place with respect to the central axis (4) and is provided with at least one holding main body (48).

A HYDRAULICALLY POWERED ROTARY ACTUATOR

A hydraulically powered rotary actuator is described including: a hydraulic linear actuator which is moveable in both directions between a retracted position and an extended position; a clutch device which is operable between an engaged condition and a disengaged condition; and a rotary output member; wherein the linear actuator is coupled to the rotary output member by way of the clutch.

METAL-TO-METAL SEALING FOR DIFFUSERS OF AN ELECTRICAL SUBMERSIBLE WELL PUMP

A well pump assembly includes a centrifugal pump (19) having a housing (33) with a cylindrical internal side wall (35). Upper and lower diffusers (39, 41) are located in the housing. A metal-to-metal seal (65 or 91, 99) seals an upper end portion of the lower diffuser to the lower end portion of the upper diffuser. The seal also has an outer surface (81 or 94) that frictionally engages the internal side wall of the housing. The seal is energized in response to an axial force exerted between the upper and lower diffusers. One version has a metal seal ring (65) located in mating recesses (73, 77) on the outer walls of the diffusers. Another version includes an inner lip (99) on one of the end portions of the diffusers that extends within and deflects an outer lip (91) on the other of the end portions of the diffusers.

A METHOD FOR PROVIDING AN AXIAL GAP IN A CUTTER ASSEMBLY OF A GRINDER PUMP, AND A GRINDER PUMP COMPRISING A SHIM CONFIGURED FOR PROVIDING SAID AXIAL GAP

The invention relates to a method for providing an axial gap in a cutter assembly of a grinder pump () in order to secure an operative shearing action at a shearing interface in said cutter assembly. The invention also relates to a grinder pump () comprising a cutter wheel (5) connected to and driven in rotation by a drive shaft (16), the cutter wheel (5) comprising a set of cutting edges (13), and a cutter disc (6) stationary connected to a pump housing (3) and having a central hole (24) and a set of cutting holes (12), the drive shaft (16) and the cutter wheel (5) being interconnected via said central hole (24) of the cutter disc (6),wherein the cutter wheel (5) and the cutter disc (6) constitute said cutter assembly. The grinder pump is characterized in that a shim (27), that has a thickness equal to or greater than 0,05 millimeters and equal to or less than 0,15 millimeters and that is manufactured from degradable paper or plastic material, is clamped between the cutter wheel (5) and ...

LINER COUPLING PIN

... ²A coupling pin for use in a pump housing, the pump housing including an outer ²casing and ²an inner pump liner, the coupling pin being suitable for locating the liner ²and casing relative ²to one another, the coupling pin including a shank and a head at one end of ²the shank. The ²head includes a cammed surface thereon which is adapted to co-operate with a ²follower on ²the liner, and a locating section on a remote or terminal end of the head ²which is adapted to ²be positioned against a seat in the outer casing when fitted. The arrangement ²is such that ²rotation of the coupling pin causes the follower to track along the cammed ²surface so as to ²cause relative movement between the outer casing and the inner pump liner.² ...

SEAL FOR A CENTRIFUGAL PUMP

A seal for use in a centrifugal pump, the pump having a stationary pump casing, a stationary plate and an axially adjustable side liner, is disclosed. The seal includes a base having an inner surface and an outer surface. A band portion extends from the base and a retainer member extends from the band portion. The retainer member is spaced apart from the base and oriented for positioning against a groove formed in the axially adjustable side plate liner of the centrifugal pump.

IMPELLER SHROUD WITH PNEUMATIC PISTON FOR CLEARANCE CONTROL IN A CENTRIFUGAL COMPRESSOR

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.

ADJUSTMENT DEVICE FOR CENTRIFUGAL PUMP IMPELLER

An adjustment device to move a pump rotor assembly to effect desired impeller clearance without causing misalignment. The arrangement provides for rigid contact between bearing housing and frame and for sealing to protect the device from exposure.

Zentrifugal-Umwälzpumpe

Turbomachine.

Strömungsmaschine, mit einem statorseitigen Gehäuse und einem rotorseitigen Laufrad, wobei zwischen einem radial äusseren Abschnitt des Laufrads und einem angrenzenden Abschnitt des Gehäuses ein Axialspalt ausgebildet ist, mit einer ersten statorseitigen Ringstruktur (20) und einer zweiten statorseitigen Ringstruktur (21), die einander zugewandte Flächen (24, 25) aufweisen, an denen in Umfangsrichtung voneinander beabstandete, sich in Axialrichtung erstreckende Vorsprünge (22, 23) ausgebildet sind, wobei die Ringstrukturen (20, 21) in einer von mindestens zwei definierten Relativpositionen, in welchen die Ringstrukturen (20, 21) in einem verbunden Zustand derselben jeweils zusammen unterschiedliche axiale Abmessungen aufweisen, miteinander verbunden sind, wobei die Relativposition, in welcher die Ringstrukturen (20, 21) miteinander verbunden sind, über die axiale Abmessung der miteinander verbunden Ringstrukturen (20, 21) eine Abmessung des Axialspalts zwischen dem Gehäuse und dem radial ...

Turbomachine.

Strömungsmaschine, mit einem statorseitigen Gehäuse und einem rotorseitigen Laufrad, wobei zwischen einem radial äusseren Abschnitt des Laufrads und einem angrenzenden Abschnitt des Gehäuses ein Axialspalt ausgebildet ist, mit einer ersten statorseitigen Ringstruktur (20) und einer zweiten statorseitigen Ringstruktur (21), die einander zugewandte Flächen (24, 25) aufweisen, an denen in Umfangsrichtung voneinander beabstandete, sich in Axialrichtung erstreckende Vorsprünge (22, 23) ausgebildet sind, wobei die Ringstrukturen (20, 21) in einer von mindestens zwei definierten Relativpositionen, in welchen die Ringstrukturen (20, 21) in einem verbundenen Zustand derselben jeweils zusammen unterschiedliche axiale Abmessungen aufweisen, miteinander verbunden sind, wobei die Relativposition, in welcher die Ringstrukturen (20, 21) miteinander verbunden sind, über die axiale Abmessung der miteinander verbundenen Ringstrukturen (20, 21) eine Abmessung des Axialspalts zwischen dem Gehäuse und dem radial ...

Schneidepumpe.

Die Schneidepumpe umfasst eine Verbindungseinrichtung (15) zum Ankoppeln eines Motors (10) und einer Welle (30), um diese um eine Rotationsachse anzutreiben, ein Pumpengehäuse (23), in welchem ein Fördermedium von einem Einlass zu einem Auslass förderbar ist, und eine an die Welle gekoppelte und im Pumpengehäuse angeordnete Pump- und Schneideinrichtung (50) mit mindestens einem rotierbaren Flügel und mit mindestens einer rotierbaren Schneide. Die Schneide ist in Bezug auf den Einlass in Richtung der Rotationsachse beweglich gelagert.

PIN FOR ATTACHMENT OF INSERT

SEALING DEVICE FOR ADJUSTABLE MEMBERS PUMP

ШТИФТ ДЛЯ ПРИКРЕПЛЕНИЯ ВКЛАДЫША

Описан соединительный штифт для использования в корпусе насоса, причем корпус насоса включает внешний кожух и внутренний вкладыш насоса, при этом соединительный штифт пригоден для расположения вкладыша и кожуха относительно друг друга, причем соединительный штифт включает хвостовик и головку на одном конце хвостовика. Головка включает находящуюся на ней скошенную поверхность, которая приспособлена для взаимодействия со следящим элементом на вкладыше, и установочную секцию на дальней или оконечной части головки, которая приспособлена для расположения в гнезде во внешнем кожухе при установке. Устройство таково, что вращение соединительного штифта вызывает движение следящего элемента вдоль скошенной поверхности, вызывающее относительное перемещение между внешним кожухом и внутренним вкладышем насоса.

IMPROVEMENTS, RELATED TO THE SEALING ASSEMBLIES PUMP

SUPPORT PUMP HOUSING

DEVICE FOR RETAINING LUBRICATING MATERIAL FOR BEARING UNIT PUMP SHAFT

PIN FOR ATTACHMENT OF INSERT

ADJUSTABLE SIDE INSERT FOR PUMP

A ROTARY PUMP AND A METHOD FOR ADJUSTING ROTARY PUMP

Stator for e.g. radial compressor of airplane jet engine, has connection arm with heating unit that is controlled to adjust radial and/or axial positions of shroud and has resistors arranged symmetrically with respect to median plane of arm

The stator has a shroud (3) whose inner face (4') defines a gaseous flow stream. A connection arm (8) connects an outer casing (1) with the shroud. The connection arm has a heating unit that is controlled to adjust radial and/or axial positions of the shroud. The heating unit has two electrical resistors (9', 9'') that are arranged symmetrically with respect to a longitudinal median plane (XX') of the connection arm. The electrical resistors are controlled independently from one another. The shroud forms a cover arranged opposite to a rotor (2). An independent claim is also included for a compressor or a low pressure turbine comprising a stator.

METHOD FOR REDUCING AERO CLEARANCE WITH BALL BEARING TURBOCHARGER

A product and method for use with a turbocharger system comprises a housing with a shaft rotationally supported by the housing. The shaft extends in an axial direction. A bearing assembly supports the shaft in the housing. A wheel is connected to the shaft and rotates with respect to the housing. A clearance opening is defined in the axial direction between the wheel and the housing. A thrust washer is engaged with the bearing assembly. The thrust washer has an outer circumference and is moved with respect to the housing. An efficiency washer is disposed around the outer circumference of the thrust washer and determines the clearance opening by defining a space within which the thrust washer moves with respect to the housing in the axial direction. COPYRIGHT KIPO 2016 ...

“BOLT OF COUPLING FOR USE IN A PACK OF BOMB, PACK OF BOMB, DISPOSAL OF COUPLING OF BOMB TO CONNECT A EXTERNAL BOX OF THE BOMB AND AN INTERNAL COVERING FOR BOMB AND COVERING OF BOMB FOR A PACK OF BOMB”

método e aparelho para ajustar a distância entre a hélice e o anel em uma bomba

CENTRIFUGAL PUMP WITH OPEN TYPE IMPELLER

A centrifugal pump having an open type bladed impeller, featuring an impeller shaft assembly which as such comprises a hollow impeller shaft, a tie rod within the impeller shaft, and an impeller with open blades connected to the tie rod so as to be axially adjustable relative to the shaft and thus relative to the pump housing through manipulation of the tie rod at the free end of the shaft.

ROTATION MECHANISM AND INTERNAL UNIT OF ROTATION MECHANISM

A rotation mechanism includes: a casing which is configured to be vertically split into two portions and includes an upper half portion on the upper side and a lower half portion on the lower side; an internal unit which is disposed in the casing and has a configuration in which a rotor which rotates around an axis thereof, a bearing portion which rotatably supports the rotor, and an annular seal portion which seals a gap surrounding a circumferential surface of the rotor so as to enable the rotor to rotate are integrated; an axial movement restricting portion which includes a fitting concave portion provided on one of the casing and the internal unit and a fitting convex portion provided on the other thereof to be fitted into the fitting concave portion as a pair and restricts relative movement between the casing and the internal unit in a direction of axis; and a tapered surface which is formed on each of the fitting concave portion and the fitting convex portion so that a width thereof ...

Impeller with removable and replaceable vanes for centrifugal pump

The present disclosure relates to impellers with removable and replaceable vanes, and methods of constructing such impellers. According to aspects of the present disclosure, a plurality of impeller back plates are provided with differently configured slots to receive removable vanes. In addition, a plurality of differently configured vanes are disclosed which may be connected to the plurality of impeller back plates. As a result, the desired performance characteristics of a pump based upon end use applications may be efficiently and quickly achieved by combining appropriately configured vanes and back plate into a desired impeller providing the desired characteristics, together with a particular pump casing and motor.

ЦЕНТРОБЕЖНЫЙ НАСОС И СПОСОБ РЕГУЛИРОВКИ РАССТОЯНИЯ ИЗНОСОСТОЙКОЙ ПЛАСТИНЫ ОТ РАБОЧЕГО КОЛЕСА ЦЕНТРОБЕЖНОГО НАСОСА

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 125 336 A (51) МПК F04D 7/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019125336, 03.03.2017 (71) Заявитель(и): ВАРИСКО С.Р.Л. (IT) Приоритет(ы): (22) Дата подачи заявки: 03.03.2017 (43) Дата публикации заявки: 05.04.2021 Бюл. № 10 (72) Автор(ы): ТИТОМАНЛИО, Антонио (IT) R U (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.10.2019 (86) Заявка PCT: IB 2017/051259 (03.03.2017) WO 2018/158617 (07.09.2018) R U (54) ЦЕНТРОБЕЖНЫЙ НАСОС И СПОСОБ РЕГУЛИРОВКИ РАССТОЯНИЯ ИЗНОСОСТОЙКОЙ ПЛАСТИНЫ ОТ РАБОЧЕГО КОЛЕСА ЦЕНТРОБЕЖНОГО НАСОСА (57) Формула изобретения 1. Центробежный насос (1) для подъема чистой воды и воды со взвешенными частицами, содержащий: - полый корпус (2), определяющий центральную ось (L), причем указанный корпус (2) имеет переднее отверстие (3) и улитку (4) с радиальным впускным каналом (5); - рабочее колесо (8), размещенное в указанном корпусе (2) и выполненное с возможностью соединения с двигателем, причем указанное рабочее колесо (8) имеет лопасти, (9) верхние кромки (10) которых по существу расположены в одной плоскости с закругленной периферийной областью (11); - крышку (12) для закрытия указанного переднего отверстия (3), причем указанная крышка (12) содержит фланец (13) с центральной частью (14), которая имеет по существу осевой отсасывающий канал (15) и по существу радиальную периферийную часть (16); - по существу кольцевую износостойкую пластину (19), составляющую одно целое с указанным фланцем (13) и расположенную на заданном осевом расстоянии (d1) от указанной кольцевой периферической области (11) указанного рабочего колеса (8); - средства (24) регулировки для контролируемой регулировки указанного осевого расстояния (d1) указанной износостойкой пластины (19), отличающийся тем, что указанные средства (24) регулировки установлены на указанном фланце (13) и выполнены доступными снаружи, причем указанные средства (24) ...

ИЗНОСОСТОЙКИЙ НАСОС ПУЛЬПЫ

1. Центробежный насос для пульпы, включающий:корпус (42) насоса, формирующий область рабочего колеса, область (20) спирали и соответствующий водорезный зазор (С, С2); ирабочее колесо (14), установленное с возможностью вращения в области рабочего колеса и имеющее заданный диаметр;при этом корпус (42) содержит сменную кольцевую вставку (46) на стороне всасывания корпуса (42), имеющую диаметр (G), составляющий по меньшей мере 1,15 диаметра (D) рабочего колеса (14), а водорезный зазор (С, С2) составляет от 0,20 до 0,25 диаметра (D) рабочего колеса (14).2. Насос по п.1, в котором сменная кольцевая вставка (46) имеет диаметр (G), приблизительно составляющий от 1,18 до 1,22 диаметра (D) рабочего колеса (14).3. Насос по п.1, содержащий регулируемое в осевом направлении компенсационное кольцо (30) между кольцевой вставкой (46) и стороной всасывания рабочего колеса (14), имеющее диаметр (Е), который больше поверхности (48) взаимодействия между компенсационным кольцом (30) и рабочим колесом (14) на величину, составляющую от 10 до 14%.4. Насос по п.1, содержащий группу выступающих выталкивающих лопастей (24) на стороне всасывания рабочего колеса (14), формирующих зазор между лопастями (24) и кольцевой вставкой (46), который больше размера наибольшей твердой частицы в распределении размеров частиц пульпы.5. Насос по п.1, содержащий регулируемое в осевом направлении компенсационное кольцо (30) между кольцевой вставкой (46) и стороной всасывания рабочего колеса (14), имеющее диаметр (Е), который больше поверхности взаимодействия между компенсационным кольцом (30) и рабочим колесом (14) на величину, составляющую от 10 до 14%; и группу выступающих выталкивающих лопастей (24) на стороне всасывания рабочего к� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК F04D 29/22 (13) 2013 150 530 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013150530/06, 13.04.2012 (71) Заявитель(и): ЭФ-ЭЛ-СМИДТ А/С (DK) Приоритет(ы): (30) Конвенционный ...

Sensor system for a pump impeller assembly

Sensor system for a pump impeller assembly

A sensor system 30 measures the position of a metallic impeller 11 in the casing of a pump, eg a slurry pump. An impeller sensor 40 comprises an impeller sensor probe 41 comprising at least one coil 43 mounted to the casing outside one of the wear liners (15),16 disposed between the casing and the impeller 11. A radio frequency drive signal generates an RF field in the coil, and a detector circuit detects a characteristic of the signal developed across the coil 43 that varies with impedance and generates a signal representative of the position of the impeller 11. A clearance signal representing the clearance between the impeller 11 and surface of the wear liner 16 is generated and used to control the position of the impeller relative to the wear liner. A liner sensor 60 including a liner sensor probe 61 may be provided to measure the separation between the liner sensor probe 61 and the surface of the wear liner 16 facing the impeller. The impeller sensor 40 may have plural coils (43, fig ...

IMPROVEMENTS IN OR RELATING TO CLEARANCE-SETTING DEVICES

Centrifugal superchargers

A centrifugal supercharger has an impeller (211) having blades (216) so arranged that the flow path through the impeller increases in cross-sectional area radially outwards. A moveable shroud (220) can be lifted to increase the clearance of the shroud from the impeller to counteract surge. A moveable plug may be withdrawn from the volute of the supercharger to allow air to circulate repeatedly in the volute to further unload the impeller.

A pump

A centrifugal slurry pump has a volute casing (2) and a back wear plate (4) defining a pumping chamber (6) in which an impeller (8) is rotatably arranged. The front running clearance (A) is defined between the front surface of the impeller (8) and a facing surface of an adjustable wear plate (16). The wear plate (16) is substantially annular and has inner and outer axially extending cylindrical surfaces (18, 20) arranged to slide along corresponding surfaces (22, 24) defining a recess within the casing in which the wear plate is housed. This linear sliding movement of the wear plate (16) enables the front running clearance (A) to be adjusted. The wear plate (16) is secured to a retaining ring (44, 124) which is in turn secured to the casing (2) whereby rotation of the wear plate (16) is prevented.

Pump and adjustment of impeller shaft

An impeller pump 30 is provided with at least one bearing 33, 34, a drive shaft, a pump housing and an impeller 36 having a surface axially spaced apart from the pump housing. The drive shaft has inner and outer components 31, 32, the inner component 31 being attached to the impeller 36 and the outer component 32 being engaged by the bearings 33, 34. Means 43, 44 are provided for effecting longitudinal movement of the inner component 31 relative to the outer component 32 to alter the spacing of the impeller from the pump housing. The means 43, 44 may comprise screw threads. The shaft components 31, 32 may comprise flat surfaces (62-65 see fig 5) and reference marks (60, 61 see fig 5) to be used in a method of adjusting for wear and maintaining a desirable running clearance. In one aspect, the invention provides an adjustable drive shaft for such an impeller pump.

FUEL FEED PUMP

Rotor assembly

EXHAUST WITH A SENSOR

STARES SHAFT COUPLING FOR TORQUE TRANSMISSION BETWEEN TWO OF SHAFT ENDS

CENTRIFUGAL PUMP

Elastomer seal for adjustable side liners of pumps

Centrifugal pump improvements

Liner coupling pin

A coupling pin for use in a pump housing, the pump housing including an outer casing and an inner pump liner, the coupling pin being suitable for locating the liner and casing relative to one another, the coupling pin including a shank and a head at one end of the shank. The head includes a cammed surface thereon which is adapted to co-operate with a follower on the liner, and a locating section on a remote or terminal end of the head which is adapted to be positioned against a seat in the outer casing when fitted. The arrangement is such that rotation of the coupling pin causes the follower to track along the cammed surface so as to cause relative movement between the outer casing and the inner pump liner.

Improvements relating to pump seal assemblies

A housing for a seal assembly of a pump, the housing comprising a main body having a wall section with inner and outer sides, and a bore extending through the main body between the inner and outer sides, a holder protruding from the inner side of the main body, the holder having an outer edge and a bearing face which is inclined inwardly towards the inner side, and extending from the outer edge towards the bore. There is also disclosed a lifting device for use with the housing.

Sealing arrangement for adjustable elements of a pump

A seal, for use with pump casing elements that are adjustable relative to each other, includes an annular band and a resilient annular flange oriented at a non-perpendicular angle to a first surface of the annular band such that the seal, in use, is able to provide greater adjustment between the adjustable pump elements while maintaining a reliable seal between the pump elements.

CENTRIFUGAL PUMPS

VERTICAL CENTRIFUGAL PUMP

PUMP-MECHANICAL SEAL CONSTRUCTION

PUMP-MECHANICAL SEAL CONSTRUCTION A pump-mechanical seal assembly (12) in which the setting of the mechanical seal is maintained when the pump impeller's position is adjusted relative to the pump housing, and means to accomplish this objective.

ADJUSTABLE SIDE LINER FOR PUMP

An adjustment assembly for pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis. The adjustment assembly is operable to cause relative displacement between the side part and the main part of the pump casing. The adjustment assembly includes a drive device and an actuator which can be activated externally of the pump, the drive device being operable to cause the relative displacement of the side part in response to activation of said actuator, the relative displacement capable of being a combination of axial and rotational movement.

ACTIVE CLEARANCE CONTROL FOR A CENTRIFUGAL COMPRESSOR

Apparatus and method of operating a centrifugal compressor and active control system includes a centrifugal compressor (18) with compressor blades (126) mounted on an impeller (32), an annular cavity (140) bounded in part by a shroud (130) adjacent to the blades (126), and an active control system (34) for controlling a clearance (180) between the shroud (130) and the blades (126) by controlling a cavity pressure (CP) in the cavity (140). An electronic controller (146) for controlling a control pressure valve (150) for pressurizing using a source of compressor discharge pressure air (76) and depressurizing the cavity (140) respectively may open and close the valves using pulse width modulation. Pressure and clearance sensors (160, 162) positioned for measuring the cavity pressure (CP) the blade tip clearance (180) respectively in signal supply communication with the electronic controller (146) may be used. The shroud (130) may be supported by radially spaced apart annular radially outer and inner supports (132, 134) connected to a casing (114) by a bolted joint (136) bounding the cavity (140)

SELF-MONITORING SYSTEM FOR EVALUATING AND CONTROLLING ADJUSTMENT REQUIREMENTS OF LEAKAGE RESTRICTING DEVICES IN ROTODYNAMIC PUMPS

A self-monitoring adjustment system is provided for evaluating and effecting adjustment of the leakage restricting mechanism between the rotating and non-rotating elements of a rotodynamic pump to restrict leakage and to establish desired gap dimensions between the rotating and non-rotating elements of the pump. The adjustment system is structured to be self-monitoring for determination of when an adjustment of the leakage restricting mechanism is warranted by the conditions of the pump, and is structured with adjusting mechanisms that are self-adjusting responsive to the monitored conditions of the pump, though manual adjustment is also enabled.

MAINLINE ELECTRIC OIL PUMP ASSEMBLY AND METHOD FOR ASSEMBLING SAME

The mainline electric oil pump assembly relates to the field of assemblies for pumping oil in main oil pipelines. The aim of the present invention is to create a mainline electric oil pump assembly with improved technical and economic characteristics, reduced noise and vibrations, and increased reliability, service life and performance. The main distinguishing features of the proposed assembly which contribute to the achievement of the aforementioned aim are: the non-splined, zero-backlash seating of the impeller on a smooth shaft, the use of roller bearings seated in a non-splined, zero-backlash fashion on the smooth shaft, the use of end seals seated in a non-splined, zero-backlash fashion on the smooth shaft, the use of self-correcting adjustable spherical supports under the supporting feet of the pump, and the boring of the seating surfaces of the pump housing for the rotor in a single set-up operation.

УСТРОЙСТВО ДЛЯ УДЕРЖИВАНИЯ СМАЗОЧНОГО МАТЕРИАЛА ДЛЯ ПОДШИПНИКОВОГО УЗЛА ВАЛА НАСОСА

Устройство для удерживания смазочного материала для использования в подшипниковом узле насоса, т.е. в подшипниковом узле, который в первой рабочей конфигурации смазывается относительно вязким смазочным материалом и который во второй рабочей конфигурации смазывается менее вязким смазочным материалом, причем подшипниковый узел содержит корпус подшипника, имеющий канал, проходящий сквозь него для приема ведущего вала насоса, отнесенные друг от друга зоны установки подшипника внутри указанного канала с камерой между ними, причем каждая зона установки подшипника приспособлена для приема в нее подшипника, при этом каждая зона имеет связанное с ней одно устройство для удерживания смазочного материала, причем указанное устройство для удерживания смазочного материала приспособлено для установки внутри указанного канала смежно с зоной установки подшипника, с которой оно связано, для формирования барьера между зоной установки подшипника и камерой, когда подшипниковый узел насоса находится в первой ...

ADJUSTABLE SIDE INSERT FOR PUMP

PIN FOR ATTACHMENT INSERT

УСТРОЙСТВО И СПОСОБ ДЛЯ ПОДЪЕМА И ПЕРЕМЕЩЕНИЯ КОРПУСА УПЛОТНИТЕЛЬНОГО УЗЛА ЦЕНТРОБЕЖНОГО НАСОСА

Предложен корпус для уплотнительного узла насоса, причем корпус содержит основной корпус, имеющий стеночную секцию с внутренней и внешней сторонами и канал, проходящий через основной корпус между внутренней и внешней сторонами, держатель, отступающий от внутренней стороны основного корпуса, при этом держатель имеет внешнюю кромку и упорную поверхность, которая наклонена внутрь к внутренней стороне и проходит от внешней кромки к каналу. Также описано подъемное устройство для использования с корпусом.

Mechanical Seal for Large Pumps

An improved mechanical seal assembly is provided for hydro transport applications and other similar applications, such as large high pressure slurry pumps. This mechanical seal is used in large scale pumps having an axially adjustable shaft to accommodate high wear applications by maintaining suitable pump performance. The improved seal is a cartridge seal that includes a stationary seal adapter which is mounted to a pump casing and has a static gasket sealingly contacting a movable gland which non-rotatably supports the stationary seal rings of a mechanical seal. Additional seal rings are rotatably supported on the shaft wherein these rotatable and non-rotatable seal components are movable axially with the shaft to improve pump performance in high-wear conditions. The gland and non-rotatable seal rings are supported on and move with a bearing housing, along with the shaft and its seal rings.

FAN ASSEMBLY AND GAP TOOL

This is a system and apparatus for precisely mounting a ring shroud to a motor vehicle cooling system and engine. A cooling fan subassembly is mounted to an engine and ring shroud subassembly containing fan braces that are mounted to the engine via mounting brackets. A mounting gap tool is inserted through apertures in the ring shroud to prescribe the radial and axial clearance between the ring shroud and the cooling fan subassembly. Once the ring shroud and cooling fan assembly are aligned to predetermined specifications for clearance, the installer secures all the fasteners in the mounting brackets and retrieves any or all the mounting gap tools. 1. A fan assembly and gap tool for motor vehicle cooling system comprising:an engine;a fan motor;a cooling fan;at least three mounting brackets;a ring shroud;at least three fan braces;wherein the fan motor is mounted to the engine, the cooling fan is mounted to the fan motor, each of the at least three fan braces is affixed to the ring shroud;each of the at least three mounting brackets having one end and an opposite end with each of the at least three mounting brackets being mounted to the engine at the one end and loosely mounted to one of the at least three fan braces at the opposite end; anda plurality of gap tools for aligning the ring shroud to the cooling fan before securing the at least three mounting brackets to the at least three fan braces.2. The fan assembly and gap tool of claim 1 , wherein the cooling fan comprises a fan hub;a plurality of fan vanes;a fan circumferential ring; anda fan outer ring, wherein the plurality of fan vanes extend outwardly from the fan hub, the fan circumferential ring encircles the fan hub, and the fan outer ring has an annular shape and is attached to the plurality of fan vanes.3. The fan assembly and gap tool of claim 1 , wherein the gap tool comprises:a head;an elongated cylinder, having one end and an opposite end:a shoulder stop, and:at least one resilient arm;the head being ...

SHROUD ASSEMBLY FOR CENTRIFUGAL COMPRESSOR AND METHOD

The centrifugal compressor can have a shroud engaged to a case via a plurality of circumferentially interspaced slots and lugs, the slots extending in at least one of a radial direction and an axial direction relative to a rotation axis of the compressor, the lugs slidingly received in a corresponding slot and configured for sliding in the slot in response to thermal growth of the case relative to the shroud. 1. A gas turbine centrifugal compressor comprising: a shroud engaged to a case via a plurality of circumferentially interspaced slots and lugs , the slots extending in at least one of a radial direction and an axial direction relative to a rotation axis of the compressor , the lugs slidingly received in a corresponding slot and configured for sliding in the slot in response to thermal growth of the case relative to the shroud.2. The shroud assembly of claim 1 , wherein at least some of the slots are defined in the case portion and at least some of the lugs are attached to the shroud claim 1 , and the dimension is a length extending in the radial direction.3. The shroud assembly of claim 2 , wherein the at least some of the slots are open radially toward the shroud.4. The shroud assembly of claim 3 , wherein the at least some of the lugs include at least one of a bolt connected to the shroud claim 3 , and a lug integral to the shroud.5. The shroud assembly of claim 4 , wherein the shroud includes a low pressure portion defining at least in part an inlet to the centrifugal compressor and a high pressure portion defining at least in part an outlet from the centrifugal compressor claim 4 , and the at least some of the lugs extend from the high pressure portion.6. The shroud assembly of claim 5 , wherein the shroud is dimensioned such that during at least part of a time during which the shroud assembly is in use claim 5 , each lug of the at least some of the lugs and a corresponding slot of the at least some of the slots define a gap between that lug and that slot ...

CENTRIFUGAL PUMP

A centrifugal pump () includes a pump casing and a shaft () which is rotatably mounted therein and on which an impeller (), for delivering fluid, is arranged rotationally fixed. A cartridge shaft seal () is arranged between the shaft () and an opening () of the casing, through which opening the shaft () is led. The cartridge shaft seal () includes a sleeve () which surrounds the shaft () at least in the region of the opening and which is connected to the shaft () releasably and rotationally fixed, by way of a clamping device () which is arranged on the outer side of the sleeve (). The clamping device () includes clamping jaws () which only engage on the outer side of the sleeve () and non-positively connect the sleeve () to the shaft (). 1. A single-stage or multi-stage centrifugal pump comprising:a pump casing;a shaft rotatably mounted in the pump casing;at least one impeller arranged on the shaft in a rotationally fixed manner for delivering fluid; anda cartridge shaft seal arranged between the shaft and an opening of the casing, through which opening the shaft is led, the cartridge shaft seal comprising a sleeve surrounding the shaft at least in the region of the opening and a clamping device comprising a clamp, the sleeve being releasably and rotationally fixedly connected to the shaft via the clamping device, the clamping device being arranged on an outer side of the sleeve, wherein the clamp of the clamping device engage only on an outer side of the sleeve such that the sleeve is only non-positively connected to the shaft.2. A centrifugal pump according to claim 1 , wherein the clamping device is releasably connected to the sleeve.3. A centrifugal pump according to claim 1 , wherein the at least one clamp of the clamping device comprises:screws;at least two clamping components which surround the sleeve in sections and which, via the screws arranged tangentially or parallel to the at least two clamping components, are connected to one another such that clamping ...

Method of manufacturing supercharger

An object is to provide a method of manufacturing a supercharger that can promptly and easily form an abradable layer in a supercharger. A method of manufacturing a supercharger is a method of manufacturing a supercharger including a turbine configured to rotationally drive, and a compressor having an impeller configured to rotate according to rotational force of the turbine and a housing ( 10 ) configured to store the impeller, and the method includes a process of applying coating of an abradable material which is to form an abradable layer ( 20 ) when being solidified, only to a predetermined range on a surface of the housing ( 10 ) via which the impeller and the housing ( 10 ) face.

Impeller shroud with slidable coupling for clearance control in a centrifugal compressor

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a high pressure air source, an air piston mounted between an engine casing and the shroud and adapted to receive high pressure air from the high pressure air source, a mounting arm coupling the shroud and air piston, and a slidable coupling adapted to allow axial movement of the shroud and joining the shroud to an axial member.

Sealing Arrangement For Adjustable Elements Of A Pump

A seal, for use with pump casing elements that are adjustable relative to each other, includes an annular band and a resilient annular flange oriented at a non-perpendicular angle to a first surface of the annular band such that the seal, in use, is able to provide greater adjustment between the adjustable pump elements while maintaining a reliable seal between the pump elements. 1. A seal for use with pump casing elements that are adjustable relative to each other , comprising:an annular band having a first circumferential end and a second circumferential end, and having a first surface extending at least partially between said first circumferential end and said second circumferential end, and having a second surface extending at least partially between said first circumferential end and said second circumferential end, said second surface being spaced from said first surface and oriented in a direction opposite to said first surface; anda resilient annular flange positioned proximate said second circumferential end of said annular band and extending at a non-perpendicular angle with respect to said first surface of said annular band.2. The seal according to claim 1 , further comprising a pivotable region located between said resilient annular flange and said annular band to facilitate movement of said resilient annular flange toward and away from said first surface of said annular band claim 1 , said pivotable region being located beyond a plane claim 1 , defined by said first surface of said annular band claim 1 , in a direction away from said second surface.3. The seal according to claim 2 , wherein said resilient annular flange is further comprised of a terminal edge positioned at a distance from said pivotable region.4. The seal according to claim 3 , further comprising a locating rim extending along and outwardly from said terminal edge of said resilient annular flange.5. The seal according to claim 3 , wherein said resilient annular flange further comprises ...

RADIAL COMPRESSOR FOR AN EXHAUST GAS TURBOCHARGER

The invention relates to a radial compressor () for an exhaust gas turbocharger, in particular of an internal combustion engine, 1. A radial compressor for an exhaust gas turbocharger of an internal combustion engine comprising:a compressor housing including an axial inlet channel and a radial outlet channel, wherein the compressor housing at least partially surrounds a compressor space;a compressor wheel arranged in the compressor space for delivering and compressing a gas, wherein the compressor wheel includes an axial inlet side facing the inlet channel, a radial outlet side facing the outlet channel, and an axial wheel surface contour extending from the inlet side to the outlet side;an adapter element substantially designed sleeve-like, the adapter element axially insertable into a fastening section provided on the compressor housing proximate to the axial inlet channel and fixed in a predetermined axial fixing position; and{'b': 10', '6, 'wherein the adapter element having a first axial face end, which in the predetermined axial fixing position faces the compressor wheel, includes a surface contour at least in sections formed substantially complementarily to the axial wheel surface contour, wherein axially moving the adapter element in the fastening section in a non-fixed state of the adapter element adjust a gap width of a passage gap axially formed between the adapter element () and the compressor wheel () along the axial wheel and adapter element surface contours.'}2. The radial compressor according to claim 1 , wherein the adapter element is fixed relative to the compressor housing in the predetermined axial fixing position by at least one of pressing and gluing.3. The radial compressor according to claim 1 , whereinthe fastening section includes an internal thread and the adapter element includes an external thread that is complementary thereto, wherein the adapter element is moveable relative to the fastening section in the axial direction.4. The radial ...

Metal-to-Metal Sealing for Diffusers Of An Electrical Submersible Well Pump

A well pump assembly includes a centrifugal pump having a housing with a cylindrical internal side wall. Upper and lower diffusers are located in the housing. A metal-to-metal seal seals an upper end portion of the lower diffuser to the lower end portion of the upper diffuser. The seal also has an outer surface that frictionally engages the internal side wall of the housing. The seal is energized in response to an axial force exerted between the upper and lower diffusers. One version has a metal seal ring located in mating recesses on the outer walls of the diffusers. Another version includes an inner lip on one of the end portions of the diffusers that extends within and deflects an outer lip on the other of the end portions of the diffusers. 1. A well pump assembly , comprising:a motor;a centrifugal pump having a housing with a cylindrical internal side wall and a longitudinal axis;an upper and a lower diffuser in the housing, each of the diffusers having a cylindrical outer wall, the lower diffuser having an upper end portion that abuts a lower end portion of the upper diffuser;a central opening extending concentrically through each of the diffusers;a shaft extending rotatably through the central openings in the diffusers;an impeller mounted to the shaft for rotation therewith and positioned between the diffusers; anda metal-to-metal seal that seals the upper end portion of the lower diffuser to the lower end portion of the upper diffuser, the seal having an outer surface that frictionally engages the internal side wall of the housing, the seal being energized in response to an axial force exerted between the upper and lower diffusers.2. The assembly according to claim 1 , and wherein the metal-to-metal seal comprises:an annular lower end recess on the outer wall of the upper diffuser at the lower end portion;an annular upper end recess on the outer wall of the lower diffuser at the upper end portion, the upper end recess and the lower end recess defining a seal ...

IMPELLER SHROUD WITH CLOSED FORM REFRIGERATION SYSTEM FOR CLEARANCE CONTROL IN A CENTRIFUGAL COMPRESSOR

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver is coupled to a closed form refrigeration system having an evaporator, a compressor, a condenser, an expansion valve, and a refrigerant contained therein. The thermal driver is cooled by the refrigeration system, and the rate of cooling causes expansion and contraction of the thermal driver that is translated by linkages into axially forward and aft motion of the shroud. 1. A compressor shroud assembly in a turbine engine having a dynamically moveable impeller shroud for encasing a rotatable centrifugal compressor and maintaining a clearance gap between the shroud and the rotatable centrifugal compressor , said assembly comprising:a static compressor casing; one or more linkage assemblies mounted to said casing and being spaced around the circumference thereof; and', 'an annular thermal driver mounted to said linkage assemblies and coupled to a closed form refrigeration system having an evaporator, a compressor, a condenser, an expansion valve, and a refrigerant contained therein; and, 'a thermal actuator comprisingan impeller shroud slidably coupled at a forward end to said casing and mounted proximate an aft end to said linkage assemblies, said impeller shroud moving relative to the rotatable centrifugal compressor in an axial direction while substantially maintaining a radial alignment when said thermal actuator is actuated.2. The assembly of claim 1 , wherein said evaporator forms at least a portion of said annular thermal driver.3. The assembly of claim 2 , wherein said evaporator comprises metal foam.4. The assembly of claim 3 , wherein said annular thermal driver comprises a ring configured for radial flexion.5. The shroud assembly of wherein said linkage ...

Method for the positioning of a cover disk of a pump and pump

A method for the positioning of a cover disk with respect to an open impeller of a pump arranged in a pump housing. An adjustment bolt is first screwed so far into a threaded bore of the cover disk until it comes into contact with the pump housing. An identifier is subsequently applied which indicates a position of a first marking of the adjustment bolt. The adjustment bolt is then screwed in further until a second marking reaches the identifier. The described steps are repeated for at least one further adjustment bolt.

ROTOR ASSEMBLY

A rotor assembly that includes a shaft and an impeller and/or a rotor core. The shaft is secured within a bore in the impeller and/or the rotor core by an adhesive such that the concentricity of the shaft is smaller than that of the bore. A method of manufacturing the rotor assembly is also described. 1. (canceled)2. A rotor assembly comprising a shaft and an impeller , the shaft being secured within a bore of the impeller by an adhesive , wherein a centreline of the bore is offset from a centreline of the impeller by a first amount , a centreline of the shaft is offset from the centreline of the impeller by a second amount , and the second amount is less than the first amount.3. The rotor assembly of claim 2 , wherein the impeller is formed of plastic.4. The rotor assembly of claim 2 , wherein the rotor assembly comprises a rotor core claim 2 , and the shaft is secured within a bore of the rotor core by an adhesive claim 2 , and wherein a centreline of the bore in the rotor core is offset from a centreline of the rotor core by a third amount claim 2 , a centreline of the shaft is offset from the centreline of the rotor core by a fourth amount claim 2 , and the fourth amount is less than the third amount.5. The rotor assembly of claim 4 , wherein the rotor assembly comprises a bearing cartridge located between the impeller and the rotor core.6. The rotor assembly of claim 4 , wherein the rotor core is formed of a rare-earth magnetic material.7. A method of manufacturing a rotor assembly comprising:providing a shaft;providing an impeller; andadhering the shaft within a bore in the impeller such that a centreline of the bore is offset from a centreline of the impeller by a first amount, a centreline of the shaft is offset from the centreline of the impeller by a second amount, and the second amount is less than the first amount,wherein adhering the shaft within the bore comprises applying an adhesive to the shaft and inserting the shaft into the bore whilst rotating ...

COVER OF A TURBOMACHINE CENTRIFUGAL COMPRESSOR CAPABLE OF BEING RIGIDLY CONNECTED VIA THE DOWNSTREAM SIDE NEAR TO THE UPSTREAM EDGE OF SAME, AND TURBOMACHINE COMPRISING THIS COVER

A cover of a centrifugal compressor intended to be rigidly connected to a turbomachine housing, which includes a plurality of ports, is provided. The cover further includes a fastening device for fastening the cover to the housing. A portion of the fastening device is located upstream relative to the ports and can be accessed by a fastening tool through at least one of the ports of the cover. A turbomachine uses this cover to form a sealed space, in particular with a view to collecting air. 1: A cover for a centrifugal compressor which is intended to be fixed to a casing of a turbine engine , comprising an upstream edge and a downstream edge in the flow direction of the gases crossing the compressor , said cover comprising a plurality of openings and means for fixing to the casing ,wherein the upstream fixing means are located upstream relative to the openings and can be accessed by a fixing tool through at least one of said openings in the cover.2: The centrifugal compressor cover according to claim 1 , wherein said openings are intended for an air offtake in the compressor.3: The centrifugal compressor cover according to claim 1 , wherein said upstream fixing means comprise an outer flange and fixing holes which pierce said flange claim 1 , the unit being intended to cooperate with clamping means claim 1 , of the screw and nut type claim 1 , which can be actuated by the fixing tool.4: The centrifugal compressor cover according to claim 3 , wherein said outer flange forms a wall which completely surrounds said cover.5: The centrifugal compressor cover according to claim 4 , configured such that each fixing hole can receive one clamping screw passing through at least one of said openings.6: The centrifugal compressor cover according to claim 3 , wherein said flange extends close to the upstream edge of the cover.7: The centrifugal compressor cover according to claim 3 , further comprising a downstream flange for holding against the casing of the turbine engine claim ...

MULTI-STAGE HORIZONTAL CENTRIFUGAL PUMP FOR CONVEYING A FLUID AND A METHOD FOR REPAIRING THE SAME

A multi-stage horizontal centrifugal pump for conveying a fluid has a rotor including a rotatably arranged shaft and a plurality of impellers for conveying the fluid and a stator. All the impellers are arranged in a rotatably fixed manner on the shaft. The stator includes a plurality of stage casings, which are arranged consecutively one after another with respect to an axial direction determined by a central axis. The stator encompasses the rotor, and each stage casing is designed and arranged centrically with respect to the central axis. A plurality of wear rings is disposed between the rotor and the stator, each of which is fixed with respect to the stator, and surrounds the rotor with a clearance. At least one of the wear rings is designed eccentrically. 1. A multiple-stage horizontal centrifugal pump for conveying a fluid , comprising:a rotor comprising a rotatably arranged shaft and a plurality of impellers for conveying the fluid, each impeller of the plurality of impellers being arranged in a rotatably fixed manner on the shaft;a stator comprising a plurality of stage casings arranged consecutively one after another with respect to an axial direction determined by a central axis, the stator encompassing the rotor, and each stage casing of the plurality of stage casings being configured and arranged centrically with respect to the central axis;a plurality of wear rings disposed between the rotor and the stator, each wear ring of the plurality of wear rings being fixed with respect to the stator, and surrounding the rotor with a clearance, at least one wear ring of the plurality of wear rings is designed eccentrically.2. The multiple-stage horizontal centrifugal pump according to claim 1 , wherein at least two wear rings of the plurality of wear rings is designed eccentrically.3. The multiple-stage horizontal centrifugal pump according to claim 1 , wherein the least two wear rings of the plurality of wear rings have an eccentricity which increases towards the ...

Electrical machine and methods of assembling the same

A fluid circulating assembly having a rotation axis is provided. The fluid circulating assembly includes a fan impeller including an inlet ring and a rear plate that together define a central fan chamber. The fluid circulating assembly also includes an electrical machine having a rotor assembly, a stator assembly, and at least one bearing assembly. The rotor assembly is coupled to the rear plate such that the electrical machine is located entirely outside the central fan chamber. The rotor assembly includes a hub portion having a radially inner wall that at least partially defines a central opening extending entirely through the electrical machine and oriented about the rotation axis such that the central opening does not include a shaft extending therethrough.

Compact turbomachine with magnetic bearings and auxiliary bearings

A turbo-machine for compressing or expanding a fluid comprises a housing ( 201 ), a rotary shaft ( 203 ), an electric machine ( 207 ), an impeller ( 202 ) mounted at an end of the rotary shaft ( 203 ), radial magnetic bearings ( 208 ), an axial magnetic bearing ( 210 ), an axial detector ( 240 ), radial detectors ( 209 ), a control circuit, and auxiliary bearings ( 290 ). An auxiliary bearing ( 290 ) is integrated within a stator portion ( 211, 212 ) of the axial magnetic bearing ( 210 ) and this stator portion ( 211, 212 ) of the axial magnetic bearing ( 210 ) is located opposite a rotor armature ( 220 ) of the axial magnetic bearing ( 210 ). The rotor armature ( 220 ) is made of iron or of a material which is adapted to be attracted in a magnetic field and is constituted by a rear face ( 221 ) of the impeller ( 202 ).

Adjustment Mechanism For Pump Seal

An adjustment mechanism () for a seal assembly () for a pump drive shaft () of a pump, the pump shaft () mounted for rotation about a rotation axis. The seal assembly () comprises a rotating seal () mounted for rotation with the drive shaft () about the rotation axis and a static seal () adjacent the rotating seal () and axially moveable relative thereto. The adjustment mechanism () comprises an adjustment member () which is axially moveable so as to cause axial movement of the static seal () relative to the rotating seal (). The mechanism further includes an actuator () and a transmission () for transmitting a motive force from the actuator to the adjustment member as a result of activation of the actuator. The transmission () is operatively connected to the adjustment member () at two spaced apart couplings () whereby activation of the actuator causes simultaneous transmission of the motive force to the two spaced apart couplings. The actuator () is disposed externally of all pump parts. 115-. (canceled)16. An adjustment mechanism for a seal assembly for a pump drive shaft of a pump , the pump shaft mounted for rotation about a rotation axis , the adjustment mechanism comprising:an adjustment member which is axially moveable so as to cause axial movement of the static seal relative to the rotatable seal, an actuator and a transmission for a portion of a seal assembly of a pump;an actuator which is operable at a single point; anda transmission for transmitting a motive force from the actuator to the adjustment member as a result of activation of the actuator, the transmission being operatively connected to the adjustment member at two or more spaced apart couplings, whereby activation of the actuator causes simultaneous transmission of the motive force to the couplings.17. The adjustment mechanism according to claim 16 , wherein the transmission comprises a fork shaped member having two spaced apart legs extending away from one end of the fork shaped member claim ...

MAGNETICALLY COUPLED SEALLESS CENTRIFUGAL PUMP

A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the cannister under catastrophic bearing failure. 1. A magnetically driven centrifugal pump having an axis of impeller rotation , comprisinga pump case;an open vane impeller in the pump case rotatably mounted about the axis of impeller rotation;a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer by threads extending about the axis of impeller rotation and provided directly on the stuffing box inner and the stuffing box outer;a rotor axially fixed and rotatably mounted about the axis of impeller rotation in the stuffing box inner, the impeller being fixed to rotate with the rotor;a drive including a drive output rotatably mounted about the axis of impeller rotation;a magnetic coupling between the rotor and the drive output; anda canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive.2. The magnetically driven centrifugal pump of claim 1 , the rotor being concentric with and outwardly of the drive output at the magnetic coupling in the stuffing box.3. The magnetically driven centrifugal pump of further comprisinga journal rotor bushing between the ...

EZ ADJUST IMPELLER CLEARANCE

A pump features a bearing sleeve couples to a pump shaft, and includes a bearing sleeve surface having bores for receiving fasteners; and an adjusting nut having a central bore with central bore threads to rotationally couple to pump shaft threads, is configured to rotate in relation to the bearing sleeve and move the pump shaft axially to adjust an impeller clearance between a working side of an impeller arranged on the pump shaft and a casing of the pump, and is configured with an adjusting nut surface having openings different in number than the bores, sets of corresponding bores and openings aligning at angular adjustment intervals, e.g. every 9 or 15°, when the adjusting nut is rotated in relation to the bearing sleeve in either direction in order to receive fasteners to couple the adjusting nut to the bearing sleeve when the adjustment of the impeller clearance is completed. 1. A pump comprising:a bearing sleeve configured to couple to a pump shaft, and also configured with a bearing sleeve surface having bores for receiving fasteners; andan adjusting nut configured with a central bore having central bore threads to rotationally couple to pump shaft threads of the pump shaft, configured to rotate in relation to the bearing sleeve and move the pump shaft axially to adjust an impeller clearance between a working side of an impeller arranged on the pump shaft and a casing of the pump, and configured with an adjusting nut surface having openings that are different in number than the bores, sets of corresponding bores and openings configured to align at angular adjustment intervals about every 9° or 15° when the adjusting nut is rotated in relation to the bearing sleeve in either direction in order to receive fasteners to couple the adjusting nut to the bearing sleeve when the adjustment of the impeller clearance is completed.2. A pump according to claim 1 , wherein the bores include eight (8) bores claim 1 , and the openings include six (6) openings.3. A pump ...

IMPELLER SHROUD FOR A COMPRESSOR

A shroud for a compressor is provided. The shroud may include a first annular portion constructed of a first material, a second annular portion coupled to the first annular portion and constructed of a second material, and a first coating disposed on the first annular portion and constructed of a third material. At least one of the first material, the second material, and the third material may be a different material from at least one other of the first material, the second material, and the third material. 1. A shroud for a compressor , comprising:a first annular portion constructed of a first material;a second annular portion coupled to the first annular portion and constructed of a second material; anda first coating disposed on the first annular portion and constructed of a third material,wherein at least one of the first material, the second material, and the third material is a different material from at least one other of the first material, the second material, and the third material.2. The shroud of claim 1 , wherein the first annular portion comprises:an inner annular member having a first inner annular member end portion and a second inner annular member end portion and an inner annular surface extending between the first inner annular member end portion and the second inner annular member end portion, the first coating being disposed on the inner annular surface of the inner annular member;an outer annular member having a first outer annular member end portion and a second outer annular member end portion and an outer annular surface extending between the first outer annular member end portion and the second outer annular member end portion, the outer annular member configured to couple the shroud with a casing of the compressor; anda bridge member extending radially between the second inner annular member end portion and the second outer annular member end portion.3. The shroud of claim 2 , wherein the outer annular member and the inner annular member ...

A method for providing an axial gap in a cutter assembly of a grinder pump, and a grinder pump comprising a shim configured for providing said axial gap

A method for providing an axial gap in a cutter assembly of a grinder pump in order to secure an operative shearing action at a shearing interface in the cutter assembly. A grinder pump includes a cutter wheel connected to and driven in rotation by a drive shaft. The cutter wheel includes a set of cutting edges, and a cutter disc stationary connected to a pump housing and having a central hole and a set of cutting holes. The drive shaft and the cutter wheel are interconnected via the central hole of the cutter disc, wherein the cutter wheel and the cutter disc constitute the cutter assembly. A shim, which has a thickness equal to or greater than 0.05 millimeters and equal to or less than 0.15 millimeters and that is manufactured from degradable paper or plastic material, is clamped between the cutter wheel and the cutter disc.

Blower Housing with Two Position Cutoff

A heating, ventilation, and/or air conditioning (HVAC) system includes a blower assembly having a blower housing configured to operate with various sized impellers. The blower housing includes a cutoff that is selectively radially adjustable to locate a leading edge of the cutoff in a position relative to one of the various sized impellers to maintain a proper clearance between the leading edge of the cutoff and one of the various sized impellers in order to efficiently separate blower discharge airflow from incoming airflow collected in the blower housing and prevent recirculation of the blower discharge airflow through the blower housing.

Impeller shroud with thermal actuator for clearance control in a centrifugal compressor

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of an impeller shroud in a turbine engine. The system comprises a thermal driver coupled between the impeller shroud and engine casing by hinged linkages. The thermal driver includes an annular ring and annular seal which together define thermal driver cavity. Relatively warm or relatively cool air supplied to the thermal driver cavity cause expansion and contraction, respectively, of the annular ring which is translated by linkages into axially forward and aft motion, respectively.

SEAL FOR A CENTRIFUGAL PUMP

A seal for use in a centrifugal pump, the pump having a stationary pump casing, a stationary plate and an axially adjustable side liner, is disclosed. The seal includes a base having an inner surface and an outer surface. A band portion extends from the base and a retainer member extends from the band portion. The retainer member is spaced apart from the base and oriented for positioning against a groove formed in the axially adjustable side plate liner of the centrifugal pump.

METHOD AND INSTALLATION FOR THE TREATMENT OF HEAT-SENSITIVE FOOD PRODUCTS, AND CENTRIFUGAL PUMP FOR AN INSTALLATIONOF SAID TYPE

A method for treating liquid food products after direct heating comprises a first cooling of the liquid food product occurring on a floor of the infuser vessel up to an outlet opening. A second cooling of the liquid food product occurs in a tubular section connecting directly to the outlet opening. A third cooling of the liquid food product occurs in a housing cover of a pump housing of a centrifugal pump. At least one flushing operation of the pump housing and of an impeller via a rear impeller gap is performed, wherein the at least flushing operation occurs via a front impeller gap located between the housing cover and the impeller. Volume flows of the at least one flushing operation are greater than equalization flows within the pump housing. 138-. (canceled)39. A method for treating liquid food products after direct heating , wherein steam directly heats the liquid food product in an infuser vessel forming a sterile state , wherein an amount of water corresponding to that of the steam is removed from the liquid food product by decompression , and wherein a centrifugal pump conveys the liquid food product between the heating and the decompression , the method comprising:(a) a first cooling of the liquid food product occurring on a floor of the infuser vessel up to an outlet opening;(b) a second cooling of the liquid food product in a tubular section connecting directly to the outlet opening, wherein the tubular section is formed by one of an outlet pipe leading out of the infuser vessel and an intake connector of the centrifugal pump;(c) a third cooling of the liquid food product in a housing cover of a pump housing of the centrifugal pump, wherein the housing cover connects to one of the outlet pipe and an intake connector; and(d) performing at least one flushing operation of the pump housing and of an impeller via a rear impeller gap positioned between a housing rear wall of the centrifugal pump and the impeller, wherein the flushing operation occurs via a ...

SEGREGATED IMPELLER SHROUD FOR CLEARANCE CONTROL IN A CENTRIFUGAL COMPRESSOR

A system for controlling the clearance distance between an impeller blade tip of a centrifugal compressor and a radially inner surface of a segregated impeller shroud in a turbine engine. The system comprises a driving mechanism coupled to a portion of a segregated impeller shroud. The driving mechanism comprises a driving arm and threaded axial member configured to translate motion of an actuator ring into axially forward and aft motion of the portion of the segregated impeller shroud. 1. A compressor shroud assembly comprising:a static compressor casing;an actuator carried by said casing, said actuator comprising a driving member extending along a radius of the axis of rotation of a rotatable centrifugal impeller and being rotatable about said axis; andan impeller shroud for encasing the rotatable centrifugal impeller, the impeller shroud coupled at a forward end to said casing by a slidable coupling that maintains an air boundary during the full range of axial movement of said impeller shroud, said shroud being threadably coupled to said driving member so that rotation of said driving member about the axis of rotation effects translation of at least a portion of said shroud relative to the rotatable centrifugal impeller.2. The compressor shroud assembly of wherein the translation of at least a portion of said shroud relative to the rotatable centrifugal impeller is in an axial direction while maintaining a radial alignment of said portion of said shroud.3. The compressor shroud assembly of wherein said actuator further comprises a driving mechanism coupled to said driving member to rotate said driving member about the axis of rotation when said actuator is actuated.4. The compressor shroud assembly of wherein said threaded coupling between said driving member and said shroud comprises driving threads which rotate with said driving member while maintaining an axial alignment claim 1 , and driven threads which translate axially with said portion of said shroud.5. ...

IMPELLER WITH REMOVABLE AND REPLACEABLE VANES FOR CENTRIFUGAL PUMP

The present disclosure relates to impellers with removable and replaceable vanes, and methods of constructing such impellers. According to aspects of the present disclosure, a plurality of impeller back plates are provided with differently configured slots to receive removable vanes. In addition, a plurality of differently configured vanes are disclosed which may be connected to the plurality of impeller back plates. As a result, the desired performance characteristics of a pump based upon end use applications may be efficiently and quickly achieved by combining appropriately configured vanes and back plate into a desired impeller providing the desired characteristics, together with a particular pump casing and motor. 1. A pump impeller , comprising:a. a first plate having a first surface, a second surface and a perimeter edge disposed between the first and second surfaces;b. an aperture at the center of the plate extending through the plate and configured to receive a shaft for rotating the impeller;c. a plurality of slots extending through the plate between the first and second surfaces, the slots extending from a first position proximate the aperture to a second position proximate the perimeter edge;d. a plurality of removable vanes, wherein each vane extends into at least a single slot when secured to the first plate, and wherein each vane is removable from the at least a single slot;e. a second plate having a first surface and a second surface and a perimeter edge disposed between the first and second surfaces;f. a second aperture at the center of the second plate extending through the second plate and configured to receive the shaft; andg. a plurality of slots disposed in the second plate, and wherein the second plate is disposed at a distance from the first plate and each vane engages a slot formed in the second plate such that the vanes extend between the first and second plates.2. The impeller of claim 1 , wherein at least one vane is removably secured in a ...

Centrifugal pump assembly

In centrifugal pumps and, in particular, pumps for transferring fluids containing abrasive particles such as slurry pumps, wear of wetted areas is a major maintenance issue. The invention provides for the protection of internal surfaces vulnerable to wear from such particles by providing means for adjusting and controlling distribution of gland fluid for flushing vulnerable areas. The invention extends to a method and a retrofit kit, but provides primarily for a centrifugal pump assembly comprising an impeller rotatably mounted therein and support means operatively arranged for supporting the impeller from its suction side in sealing relationship with the housing. The sealing means may be mechanically adjustable for substantially even distribution of gland fluid to both axial sides of the impeller in the pump housing.

CLEARANCE CONTROL SYSTEM FOR A COMPRESSOR SHROUD ASSEMBLY

A compressor shroud assembly is disclosed comprising a dynamically moveable impeller shroud, a static compressor casing, an air piston mounted between said impeller shroud and said compressor casing, and a clearance control system. The air piston effects axial movement of said impeller shroud responsive to a supply of actuating air. The clearance control system regulates the pressure of actuating air in said air piston and comprises a supply conduit having a supply modulating valve and a discharge conduit having a blowoff check valve. The blowoff check valve is set to open at a predetermined differential pressure between pressure of the air piston and pressure of the supply of actuating air. 1. A compressor shroud assembly comprising:a dynamically moveable impeller shroud at least partly encasing a rotatable impeller;a static compressor casing;an air piston mounted between said impeller shroud and said compressor casing, said air piston effecting axial movement of said impeller shroud responsive to actuating air; and a supply conduit extending from an actuating air supply chamber to the air piston and having a supply modulating valve positioned in said supply conduit for regulating the flow of actuating air to and from said air piston; and', 'a blowoff conduit having a check valve positioned in said blowoff conduit, said check valve set to allow actuating air discharge from the air piston at a predetermined differential pressure between the air piston and the actuating air supply chamber., 'a clearance control system regulating the pressure of actuating air in said air piston, said clearance control system comprising2. The compressor shroud assembly of wherein said actuating air supply chamber is a chamber that captures effluent discharged from a centrifugal compressor.3. The compressor shroud assembly of wherein said blowoff conduit discharges to said actuating air supply chamber.4. The compressor shroud assembly of wherein said blowoff conduit discharges to ...

Magnet assembly structure for driving motor for turbo compressor

PURPOSE: A magnet assembly structure is provided to maintain the stability and reliability of driving shaft and compressor, while reducing the size of motor and allowing the magnet to be easily assembled. CONSTITUTION: A driving motor includes a stator fixed in an axial direction at the inner periphery of a closed container, and a rotor arranged to have a predetermined air gap from the inner periphery of the stator, and coupled, in an axial direction, to a driving shaft having impellers arranged at both ends of the driving shaft so as to compress a fluid in a centrifugal manner. The rotor is constituted by a magnet(120) assembly where a plurality of magnets having different polarities are alternately fixed in a circumferential direction between first and second driving shafts(210,220).

SEALING DEVICE FOR CENTRIFUGAL PUMP DRIVE WHEEL DRIVE AND FASTENING SCREW USED IN COMBINATION WITH IT

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2006 114 650 (13) A (51) ÌÏÊ F04D 29/00 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2006114650/06, 28.04.2006 (71) Çà âèòåëü(è): ÇÓËÜÖÅÐ ÏÓÌÏÅÍ Àà (CH) (30) Êîíâåíöèîííûé ïðèîðèòåò: 29.04.2005 FI 20050451 (43) Äàòà ïóáëèêàöèè çà âêè: 20.01.2008 Áþë. ¹ 2 (72) Àâòîð(û): ÀÕËÜÐÎÒÕ Þññè (FI), ËÅÕÒÎÍÅÍ Éîðìà (FI) R U Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U (57) Ôîðìóëà èçîáðåòåíè 1. Óïëîòíèòåëüíîå óñòðîéñòâî äë êðåïëåíè äèñêà ðàáî÷åãî êîëåñà öåíòðîáåæíîãî íàñîñà, ñîäåðæàùåãî ïî ìåíüøåé ìåðå óëèòêó (10) íàñîñà è äèñê (130) ðàáî÷åãî êîëåñà, ñîåäèíåííûé ñ óëèòêîé (10) èëè êðûøêîé êîðïóñà, ïðè÷åì óïîì íóòûé äèñê (130) ðàáî÷åãî êîëåñà èìååò êðåïåæíûå âèíòû (132), êàæäûé èç êîòîðûõ ñíàáæåí ôëàíöåì (164), îòëè÷àþùååñ òåì, ÷òî ìåæäó âèíòîì (132) è óëèòêîé (10) èëè êðûøêîé êîðïóñà óñòàíîâëåíî êîëüöåâîå óïëîòíåíèå (180). 2. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.1, îòëè÷àþùååñ òåì, ÷òî êîëüöåâîå óïëîòíåíèå (180) óñòàíîâëåíî ìåæäó ôëàíöåì (164) êðåïåæíîãî âèíòà (132) è óëèòêîé (10) èëè êðûøêîé êîðïóñà. 3. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.1, îòëè÷àþùååñ òåì, ÷òî âèíò (132) èìååò êîëüöåâóþ êàíàâêó äë êîëüöåâîãî óïëîòíåíè (180). 4. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.1 èëè 2, îòëè÷àþùååñ òåì, ÷òî ôëàíåö (164) âèíòà (132) èìååò êîëüöåâóþ êàíàâêó äë êîëüöåâîãî óïëîòíåíè (180). 5. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.4, îòëè÷àþùååñ òåì, ÷òî äèñê ðàáî÷åãî êîëåñà èìååò íàðóæíóþ öèëèíäðè÷åñêóþ ïîâåðõíîñòü (134) ñ êàíàâêîé (150) äë óïëîòíåíè (146). 6. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.4, îòëè÷àþùååñ òåì, ÷òî óïîì íóòà êîëüöåâà êàíàâêà èìååò äèàìåòð ñàìîå áîëüøîå ðàâíûé íàðóæíîìó äèàìåòðó ôëàíöà (164). 7. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.1 èëè 2, îòëè÷àþùååñ òåì, ÷òî óëèòêà (10) íàñîñà èëè êðûøêà êîðïóñà èìååò êîëüöåâóþ êàíàâêó äë êîëüöåâîãî óïëîòíåíè (180). 8. Óïëîòíèòåëüíîå óñòðîéñòâî ïî ï.7, ...

The method of the wearing plate and the distance between impeller of centrifugal pump and adjusting centrifugal pump

一种用于提升清水或带有悬浮固体的水的离心泵(1)，该离心泵包括：中空本体(2)，该中空本体限定中心轴线(L)并且具有前开口(3)和带有输送端口(5)的蜗壳(4)；叶轮(8)，该叶轮被容纳在本体(2)中并且被设计成连接到马达，并且该叶轮具有叶片(9)，叶片的顶端(10)在环形周缘区域(11)处基本上共面；还设置有用于封闭前开口(3)的盖(12)，该盖包括法兰(13)，法兰具有中央部分(14)和基本上径向的周缘部分(16)；基本上环形的耐磨板(19)，该耐磨板刚性地连接到法兰(13)并且定位成与叶轮(8)的环形周缘区域(11)相距预定的轴向距离(d 1 )；以及调节装置(24)，该调节装置用于耐磨板(19)的轴向距离(d 1 )的受控的调节。调节装置(24)安装到法兰(13)上，并且能够从外部接近该调节装置，并且该调节装置设计成既能校准耐磨板(19)的轴向位置又能将耐磨板锁定在经校准的位置。一种调节在离心泵(1)中的耐磨板(19)与叶轮(8)之间的轴向距离(d 1 )的方法。

Proximity sensor system for electric submersible pumps

ROLLER BEARING HOUSING WITH ASSEMBLIES FOR DUMPING AXIAL FORCES AND TO PREVENT ROTATION

1. Турбонагнетатель, содержащий:вал, имеющий ось вращения, конец со стороны компрессора и конец со стороны турбины;корпус (3) подшипника, содержащий отверстие подшипника и имеющий обращенную к компрессору сторону и обращенную к турбине сторону;гильзу роликового подшипника (РП), имеющую опору в указанном отверстии подшипника, при этом гильза РП содержит по меньшей мере одно внутреннее кольцо (65) подшипника, по меньшей мере одно внешнее кольцо (64) подшипника и ряд тел качения, при этом каждое тело качения находится в контакте с дорожкой качения во внутреннем кольце подшипника и с дорожкой качения во внешнем кольце подшипника, и, факультативно, внешнюю втулку, находящуюся во фрикционном контакте с по меньшей мере одним внешним кольцом (64) подшипника;кольцо (121) для предотвращения вращения, имеющее внешнюю поверхность (123) и в целом цилиндрическую внутреннюю поверхность, при этом внутренняя поверхность содержит один или несколько участков (124), отклоняющихся от окружности с постоянным радиусом вокруг оси вала,где внешнее кольцо подшипника или втулка РП содержит конец со стороны компрессора и конец со стороны турбины и содержит на внешней окружности по меньшей мере один конец, по меньшей мере один некруглый по окружности участок внешней поверхности, приспособленный для зацепления с некруглым участком кольца для предотвращения вращения и для закрепления внешнего кольца подшипника или втулки РП для недопущения вращения относительно кольца для предотвращения вращения.2. Турбонагнетатель по п.1, где кольцо (121) для предотвращения вращения имеет в целом цилиндрическую внешнюю поверхность и помещено в углубление на конце РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F02B 39/00 (11) (13) 2013 122 073 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013122073/06, 21.10.2011 (71) Заявитель(и): БОРГВАРНЕР ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 28.10.2010 US 61/407,552 (85) Дата начала рассмотрения заявки ...

Control device of centrifugal compressor

(57)【要約】 （修正有） 【課題】 インペラチップ隙間の増大を可及的に抑え て、性能を向上する。 【解決手段】 遠心羽根車翼端部及びベーンドディフュ ーザ部１５に対向するケーシング部分で、ロータ回転軸 ２の軸方向に一体に移動可能とした可動ケーシングに形 成されるインペラケーシング１０、ディフューザベーン １６及びディフューザプレート１７をインペラケーシン グ１０に対し一体に移動可能に保持する保持手段１１、 圧縮機ケーシング５に取付けられて、インペラケーシン グ１０をロータ回転軸２の軸方向に移動させるアクチュ エータ１２、並びに圧縮機ケーシング５に取付けられ て、圧縮運転中の羽根車のスラスト方向の変位を検出す る羽根車変位検出器１３を設け、羽根車変位検出器１３ が検出した変位量に対応した移動量出力をアクチュエー タ１２に与えて、インペラチップ隙間を適正値に保持す る、制御。

Self-control system for estimation of parameters and control over rotor dynamic pump anti-leak devices

FIELD: engines and pumps. SUBSTANCE: invention relates to control appliances used in adjustment mechanisms of rotor dynamic pumps to confine fluid circulation and to reduce wear caused by interaction of rotary and fixed elements in operation with suspensions. Note here that said pumps incorporate or may include adjustable wear compensators that double as anti-leak devices. Design of adjustment system comprises self-control in determination of time when pump inside conditions require adjustment on anti-leak mechanism and incorporates adjustment mechanisms responding to pump tracked inside conditions. However, manual adjustment is also possible. EFFECT: decreased leaks, adequate sizes between rotary and fixed elements. 3 cl, 7 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 486 371 (13) C2 (51) МПК F04D 29/16 F04D 15/02 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010133998/06, 15.01.2009 (24) Дата начала отсчета срока действия патента: 15.01.2009 (73) Патентообладатель(и): УЭИР СЛАРРИ ГРУП, ИНК. (US) R U Приоритет(ы): (30) Конвенционный приоритет: 15.01.2008 US 61/011,100 14.01.2009 US 12/353,735 (72) Автор(ы): БУРЖУА Рональд Дж. (US), КОСМИЦКИ Рэнди Дж. (US), ВИАН Джеффри К. (US), ЭРЛАНДСОН Тайлер М. (US), ВИКЕН Майкл Л. (US) (43) Дата публикации заявки: 27.02.2012 Бюл. № 6 2 4 8 6 3 7 1 (45) Опубликовано: 27.06.2013 Бюл. № 18 (56) Список документов, цитированных в отчете о поиске: US 5941536 A, 24.08.1999. SU 1368493 A1, 23.01.1988. RU 2238442 C2, 20.10.2004. SU 1216449 A, 07.03.1986. US 4527948 A, 09.07.1985. US 6082737 A, 04.07.2000. 2 4 8 6 3 7 1 R U (86) Заявка PCT: US 2009/000266 (15.01.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.08.2010 (87) Публикация заявки РСТ: WO 2009/091575 (23.07.2009) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. А.В.Мицу, рег.№ 364 (54) СИСТЕМА С ...

Fan motor and Manufacturing method of the same

According to an embodiment of the present invention, a fan motor comprises: an impeller including a hub connected to a rotation shaft and at least one blade formed on an outer surface of the hub; a shroud surrounding an outer circumference of the impeller; and a coating layer coated on an inner circumferential surface of the shroud. The coating layer includes: a polymer having a strength lower than a strength of the blade; and a plurality of beads mixed in the polymer and having strength higher than strength of the polymer.

Centrifugal compressor having a bearing assembly

Embodiments of the present disclosure are directed towards an annular bearing retainer ring comprising a first axial surface, wherein the first axial surface is planar, and a second axial surface, wherein the second axial surface is non-planar.

DEVICE FOR CREATING A SMALL GAP BETWEEN THE ROTATING SHOVELS AND THE WALL OF A FLOW MACHINE

Pump liner

Adjustable side liner for pump

An adjustment assembly for pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis. The adjustment assembly is operable to cause relative displacement between the side part and the main part of the pump casing. The adjustment assembly includes a drive device and an actuator which can be activated externally of the pump, the drive device being operable to cause the relative displacement of the side part in response to activation of said actuator, the relative displacement capable of being a combination of axial and rotational movement.

Adjustable side liner for pump

An adjustment assembly for pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis. The adjustment assembly is operable to cause relative displacement between the side part and the main part of the pump casing. The adjustment assembly includes a drive device and an actuator which can be activated externally of the pump, the drive device being operable to cause the relative displacement of the side part in response to activation of said actuator, the relative displacement capable of being a combination of axial and rotational movement.

CENTRIFUGAL COMPRESSOR COVER, CENTRIFUGAL COVER AND COMPRESSOR ASSEMBLY, AND TURBOMACHINE COMPRISING SUCH ASSEMBLY

La présente invention vise, dans un encombrement axial réduit, à permettre une dilatation libre de l'enveloppe d'un couvercle de compresseur centrifuge selon la direction radiale lors des montées en température, afin de maîtriser la tenue des jeux radiaux en bord d'attaque et des jeux axiaux en bord de fuite. Pour ce faire, l'invention prévoit un couvercle (30) dans lequel la jonction (41) entre l'attache (4) et l'enveloppe (3) est formée entre sensiblement le milieu (I) de l'enveloppe (3) et son bord de fuite (BF) et dans lequel, à froid, l'attache (4) présente essentiellement une forme concave (43) élastiquement déformable en flexion. Cette forme concave (43) est raccordée à l'enveloppe (3) par une paroi (5) se prolongeant au niveau de la jonction (41) par une forme convexe (44), de sorte que l'attache (4) présente, globalement, une configuration en coupe en forme de « S » avec une jonction (41) située plus près du bord de fuite (BF) de l'enveloppe (3) que de son bord d'attaque (BA). The present invention aims, in a reduced axial space, to allow free expansion of the casing of a centrifugal compressor cover in the radial direction during temperature rises, in order to control the holding of the radial games at the leading edge. and axial games in trailing edge. To do this, the invention provides a cover (30) in which the junction (41) between the fastener (4) and the envelope (3) is formed between substantially the medium (I) of the envelope (3) and its trailing edge (BF) and in which, cold, the fastener (4) has substantially a concave shape (43) elastically deformable in bending. This concave shape (43) is connected to the envelope (3) by a wall (5) extending at the junction (41) by a convex shape (44), so that the fastener (4) has, overall, an "S" shaped sectional configuration with a junction (41) located closer to the trailing edge (BF) of the envelope (3) than its leading edge (BA).

Rotary pump

A rotary pump 10, e.g. a centrifugal slurry pump, has a main casing 12 housing an impeller 18 rotatable in an impeller cavity 16 defined between end liners 25, 28 and a peripheral main casing portion 24. The end liner 28, at a suction end of the impeller, is slidingly sealed via an annular seal 32 against the main casing portion 24. A radially inner, axially outwardly extending tubular portion 36 integral with the end liner 28 is aligned with a stationary tubular Inlet portion 40. Seats 38, 44 respectively on the tubular portions 36, 40 oppose each other over a bridge cavity accommodating an annular bridge 50 which is expansible to allow the end liner 28 to be adjusted axially to close any gap with the impeller 18 caused by wear, Two variations of the annular bridge 50 are disclosed.

DILECERATING PUMP WITH MEANS OF ADJUSTMENT

Pompe dilacératrice, comprenant un arbre (1) entraîné en rotation par un moteur, un impulseur (2) solidaire en rotation de l'arbre (1), du fluide véhiculé passant entre un couteau (6) solidaire de l'arbre (1) et une bague (7) sécatrice, le couteau (6) et la bague (7) sont en regard par des surfaces munies de moyens de dilacération, la distance ou jeu de dilacération entre le couteau (6) et la bague (7) sécatrice est réglable par des moyens (15) de réglage. Macerator pump, comprising a shaft (1) driven in rotation by a motor, an impeller (2) integral in rotation with the shaft (1), fluid carried between a knife (6) integral with the shaft (1) and a ring (7) secateurs, the knife (6) and the ring (7) are facing by surfaces provided with means of disintegration, the distance or clearance between the knife (6) and the ring (7) secateur is adjustable by means (15) of adjustment.

CENTRIFUGAL PUMP FOR COMBUSTION ENGINE COOLING LIQUID CIRCUIT.

DEVICE FOR ADJUSTING THE RADIAL AND / OR AXIAL POSITION OF A TURBOMACHINE STATOR VIOLA

A method of manufacturing a micro-blower for a respiratory assistance device

Titre de l’invention Procédé de fabrication d’une micro-soufflante pour appareil d’assistance respiratoire L’invention concerne un procédé de fabrication d’une micro-soufflante (1) pour un appareil d’assistance respiratoire (100), comprenant un moteur électrique (2) entraînant en rotation un axe rotatif (3) portant une roue à ailettes (4), ladite roue à ailettes (4) étant agencée dans une volute (8) comprenant les étapes d’emmancher la roue à ailettes (4) sur l’axe (3) du moteur ; d’équilibrer la roue à ailettes (4) sur l’axe (3) du moteur de sorte que le battement soit compris entre 0 et 0,1 mm, et le balourd statique soit compris entre 0 et 20 mg.mm ; et de contrôler le jeu entre la roue à ailettes (4) et la volute supérieure (8a) de sorte que ledit jeu soit compris entre 0,1 et 0,5 mm. Figure de l’abrégé : Fig. 1 Title of the invention Method of manufacturing a micro-blower for a respiratory assistance device The invention relates to a method of manufacturing a micro-blower (1) for a respiratory assistance device (100), comprising a electric motor (2) rotating a rotary axis (3) carrying a paddle wheel (4), said paddle wheel (4) being arranged in a volute (8) comprising the steps of fitting the paddle wheel (4) ) on the motor shaft (3); to balance the impeller (4) on the axis (3) of the motor so that the flutter is between 0 and 0.1 mm, and the static unbalance is between 0 and 20 mg.mm; and controlling the clearance between the impeller (4) and the upper volute (8a) so that said clearance is between 0.1 and 0.5 mm. Abstract figure: Fig. 1

Centrifugal pump

ABSTRACT OF THE DISCLOSURE A centrifugal pump having a packing seal in which rope packing is compressed between two facing seal walls extending radially from the pump shaft, one wall being on a stationary seal gland and the other wall being on a rotary member attached to the shaft; a centrifugal lubricator mounted on the shaft which has an annular tube with an entrance opening through which lubricant enters and exit openings through which the lubricant is centrifugally distributed; an adjustable feature enabling precise adjustment of the impeller's axial location; a removable seal housing; and a tangential flushing tube in a side wall of the seal housing.

Patent FR2110605A5

rotary electric pump

Frame plate with tightening rods for a centrifugal pump

Обеспечена универсальная рамная плита, предназначенная для центробежных насосов, которые включают в себя корпус насоса. Рамная плита включает в себя втулку, сконфигурированную для селективного прикрепления к первому корпусу насоса, имеющему выпускной патрубок, расположенный на первой стороне, или ко второму корпусу насоса, имеющему выпускной патрубок, расположенный на второй стороне, которая противоположна первой стороне. Сегмент первой стороны простирается радиально наружу от втулки. Сегмент первой стороны сконфигурирован для покрытия основания выпускного патрубка первого корпуса насоса, когда рамная плита прикреплена к первому корпусу насоса. Сегмент второй стороны простирается радиально наружу от втулки вдоль противоположных радиальных направлений относительно сегмента первой стороны. Сегмент второй стороны сконфигурирован для покрытия основания выпускного патрубка второго корпуса насоса, когда рамная плита прикреплена ко второму корпусу насоса. 3 н. и 17 з.п. ф-лы, 4 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 764 826 C1 (51) МПК F04D 29/42 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 29/42 (2021.08) (21)(22) Заявка: 2020125678, 05.02.2019 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): УЭИР СЛАРРИ ГРУП, ИНК. (US) Дата регистрации: 21.01.2022 05.02.2018 US 62/626,494 (45) Опубликовано: 21.01.2022 Бюл. № 3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 07.09.2020 (86) Заявка PCT: 2 7 6 4 8 2 6 R U (87) Публикация заявки PCT: WO 2019/153005 (08.08.2019) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) РАМНАЯ ПЛИТА СО СТЯГИВАЮЩИМИ СТЕРЖНЯМИ ДЛЯ ЦЕНТРОБЕЖНОГО НАСОСА (57) Реферат: Обеспечена универсальная рамная плита, втулки. Сегмент первой стороны предназначенная для центробежных насосов, сконфигурирован для покрытия основания которые включают в себя корпус насоса. Рамная выпускного ...

Device for adjusting the running clearance of an impeller

An improved device for adjusting the running clearance of a pump impeller is shown and described. In a preferred embodiment, an annular adjustment member is positioned adjacent to a pump impeller and the pump housing, the impeller being spaced from the adjustment member and housing by a predetermined distance. The adjustment member is selectively moved towards and away from the impeller, and lockable in any desired position. The adjustment member is moved in an axial direction by loosening a plurality of clamp nuts, and turning adjustment nuts until the annular adjustment member bottoms out on the impeller. The annular adjustment member is then backed off until an end surface of the adjustment member is spaced from the end surface of the impeller by the predetermined distance. The adjustment member is locked in the new location, thereby resetting the running clearance of the pump. The annular adjustment member includes an elastomeric member that creates a dynamic seal in a radial direction, the adjustment member being accessible and usable during operation of the pump.

Liner coupling pin

A coupling pin for use in a pump housing, the pump housing including an outer casing and an inner pump liner, the coupling pin being suitable for locating the liner and casing relative to one another, the coupling pin including a shank and a head at one end of the shank. The head includes a cammed surface thereon which is adapted to co-operate with a follower on the liner, and a locating section on a remote or terminal end of the head which is adapted to be positioned against a seat in the outer casing when fitted. The arrangement is such that rotation of the coupling pin causes the follower to track along the cammed surface so as to cause relative movement between the outer casing and the inner pump liner.

Magnetically coupled sealless centrifugal pump

A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the cannister under catastrophic bearing failure.

Centrifugal slurry pump

A pump, for example, a centrifugal slurry pump, has a casing (10) with an inlet (12) and an outlet (14). The casing (10) and a separate backliner (28) define a chamber (16) in which an impeller (18) is arranged to be rotated by way of a drive shaft (20) which extends axially with respect to the casing (10). Fine running clearances are defined between the front and rear surfaces of the impeller (18) and the adjacent surfaces of the casing (10) and the backliner (28). In order to compensate for increases of the running clearances, for example, due to erosion, the backliner (28) may be moved axially relative to the casing (10). The backliner (28) is connected to an annular flange (38) which is bolted to an annular flange (36) connected to the casing (10) and the spacing between the flanges (36, 38) may be adjusted by removing one or more shims (40) provided therebetween.

Centrifugal pump

The pump has an impeller (2) arranged in housing (3), where and impeller is rotatably supported around a rotational axis. A wearing part (5), which extends in a process direction of the rotational axis and surrounds a blade edge, is arranged within the pump housing such that the wearing part exhibits a gap with respect to the blade edge. The wearing part is movably supported with respect to the housing in such a manner that rotation of wearing part around the axis causes a movement of the wearing part in a direction of the axis to change the gap between an impeller edge and the wearing part. An independent claim is also included for a method for changing a position of a wearing part in a centrifugal wheel pump.

Bearing carrier with multiple lubrication slots

A bearing assembly, a pump with a bearing assembly and a method of lubricating a pump bearing using a bearing assembly. The bearing assembly includes a bearing carrier and a bearing housing that are rotatably connected to one another to permit axial adjustment of the pump's impeller or other fluid-conveying apparatus, as well as variable rotational positioning of the bearing carrier relative to a pump housing. Numerous lubricant access apertures placed around the periphery of the bearing carrier facilitate lubricant passage from a connection on the bearing housing to the bearings, regardless of the rotational position of the carrier relative to the bearing housing or other pump structure.

A pump housing support

A pump housing support for use in a pump assembly, the pump assembly including a plurality of component parts which include a seal housing, a drive shaft having a rotation axis, an impeller and a pump housing, the pump housing which includes a main liner. The pump housing support comprises: a base and a mounting member which includes a body portion to which a part of the pump housing can be mounted and a locating flange extending therefrom, the locating flange having first and second locating surfaces on opposing sides thereof, wherein the main liner is located on the first locating surface and the seal housing is located on the second locating surface.

Tool-free adjustable clean-out assembly for a pump

A clean out assembly for a centrifugal pump, particularly, for example, a self-priming-type of centrifugal pump, is structured to provide easy adjustment of the clean out assembly and axial movement of a wear plate in proximity to the impeller of the pump without the need for tools to effect such movement of the wear plate and clean out assembly.

Adjustment device for centrifugal pump impeller

An adjustment device to move a pump rotor assembly to effect desired impeller clearance without causing misalignment. The arrangement provides for rigid contact between bearing housing (2) and frame (14) and for sealing to protect the device from exposure.

Magnetically coupled sealless centrifugal pump

A magnetically driven centrifugal pump has a pump case, an open vane impeller in the pump case, a stuffing box including a stuffing box outer being fixed relative to the pump case and a stuffing box inner threadedly engaged with the stuffing box outer, and a rotor axially fixed and rotatably mounted in the stuffing box inner. Bushings are arranged between the rotor and the stuffing box inner. A drive is fixed relative to the pump case and includes a drive output extending into the rotor. There is a magnetic coupling between the rotor and the drive and a canister fixed to the stuffing box and extending through the magnetic coupling to isolate the rotor from the drive. A rub ring closes the end of the stuffing box inner and constrains the drive output from damaging the cannister under catastrophic bearing failure.

Adjustment device for centrifugal pump impeller

An adjustment device to move a pump rotor assembly to effect desired impeller clearance without causing misalignment. The arrangement provides for rigid contact between bearing housing and frame and for sealing to protect the device from exposure.

Method and installation for the treatment of heat-sensitive liquid food products, and centrifugal pump for an installation of said type

A method for treatment of heat-sensitive liquid food products is provided. The method comprises: after the direct heating, the liquid food product is subjected to a first cooling at least on the vessel floor of the infuser vessel up to an outlet opening located there, a second cooling in a tubular section connecting directly to the outlet opening; and a third cooling in a housing cover of a pump housing of the centrifugal pump. The liquid food product serves for at least one planned flushing operation of the pump housing and of the impeller via a rear impeller gap provided between a housing rear wall of the centrifugal pump and the impeller, and via a front impeller gap provided between the housing cover and the impeller. The volume flows of the planned flushing operations are up to several times greater than the inevitable equalization flows within the pump housing.

Pump assembly and method

The invention refers to a pump assembly, and more specifically to a chopping pump assembly comprising a cutting wheel (5) mounted on a drive shaft in coaxial and co- rotational relation with a pump wheel (1), and a cutting plate (6) stationary mountable in a pump housing between the cutting wheel and the pump wheel, the cutting plate having perforations forming passages there through for a liquid to be transported by the pump wheel in rotation, the cutting wheel and cutting plate in co-operation providing a shearing interface effective for cutting solid matter which may be entrained in the liquid. An axial clearance between the cutting wheel and cutting plate is established at all times by eliminating an axial play in a threaded engagement between the cutting wheel and the drive shaft. The invention also refers to a method by which an operative shearing action is securable in the pump assembly. Publication picture.

Elastomer seal for adjustable side liners of pumps

An elastomer seal member (10) for use in a pump having adjustable side liners (38, 40) is structured with a bellows-type flange (74, 76) which provides and maintains a tight seal between adjoining casing elements (14) of the pump as the side liners (38, 40) are axially adjusted to compensate for wear and abrasion of the side liners. The elastomer seal member (10) provides a continuous seal between adjoining casing elements (14) as the side liners (38, 40) are axially adjusted, thereby extending the service life of the side liners (38, 40) and extending the number of hours the pump may be operated before a replacement of the side liners and seal is required.

Centrifugal pump with housing

FIELD: pumps building.SUBSTANCE: centrifugal pump includes housing (1). In housing (1) there are impeller (2) and suction branch pipe (4) forming suction hole and made with possibility of insertion into bottom plate (3) of pump housing. Branch pipe (4) is installed with possibility of axial movement on bottom plate (3) due to the fact that both suction branch pipe (4) and bottom plate (3) have at least one surface (6) turned relative to bottom plate (3), by which they adjoin each other so that due to scrolling of suction branch pipe (4) the distance between impeller (2) and suction branch pipe (4) can vary, and / or on radial circumferential surface (12) of suction branch pipe (4) there is sealing collar (14), in inserted state, adjacent to bottom plate (3).EFFECT: inventions are aimed at maintenance of high efficiency of pump during long-term operation.14 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 707 238 C1 (51) МПК F04D 15/00 (2006.01) F04D 29/16 (2006.01) F04D 29/62 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04D 15/0033 (2019.08); F04D 29/167 (2019.08); F04D 29/622 (2019.08); F04D 29/628 (2019.08) (21)(22) Заявка: 2019116662, 29.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): ВИЛО СЕ (DE) 25.11.2019 (56) Список документов, цитированных в отчете о поиске: FR 2290133 A6, 28.05.1976. FR 2681906 A1, 02.04.1993. WO 2014086472 A1, 12.06.2014. US 3499388 A1, 10.03.1970. EP 1906026 A1, 02.04.2008. RU 80519 U1, 10.02.2009. 12.06.2018 LU 100831 (45) Опубликовано: 25.11.2019 Бюл. № 33 2 7 0 7 2 3 8 R U (54) ЦЕНТРОБЕЖНЫЙ НАСОС С КОРПУСОМ (57) Реферат: Группа изобретений относится к области насосостроения. Центробежный насос содержит корпус (1). В корпусе (1) расположены рабочее колесо (2) и всасывающий патрубок (4), образующий всасывающее отверстие и выполненный с возможностью вставки в донную пластину (3) корпуса насоса. Патрубок (4) установлен с ...

Liner coupling pin

一种用在泵罩中的连接销，所述泵罩包括外壳和内泵衬套，所述连接销适于相对于彼此定位所述衬套和所述壳，所述连接销包括杆和在所述杆的一端处的头部。所述头部包括在其上的适于与所述衬套上的随动件协同操作的凸轮式表面，和在所述头部的远端或终端上的定位部分，定位部分在配合时适于定位靠在所述外壳中的座上。该布置使得所述连接销的转动引起所述随动件沿着所述凸轮式表面行进从而引起所述外壳和所述内泵衬套之间的相对运动。

Centrifugal

Radial compressor for an exhaust gas turbocharger

Die Erfindung betrifft einen Radialverdichter (1) für einen Abgasturbolader, – mit einem Verdichtergehäuse (2) und einem darin angeordneten Verdichterrad (6), – mit einem am Verdichtergehäuse (2) befestigten Adapterelement (10), welches derart ausgebildet ist, dass zwischen einer Oberflächenkontur (13) des Adapterelements (10) und einer dazu komplementären Rad-Oberflächenkontur (9) des Verdichterrads (6) ein Durchgangspalt (14) ausgebildet wird, – wobei das Adapterelement (10) mittels eines Befestigungselements (20) am Verdichtergehäuse (2) befestigt ist, – wobei das Adapterelement (10) einen Adapterelement-Hauptabschnitt (18) aufweist, welcher in axialer Richtung (A) vom Verdichterrad (6) weg in einen Adapterelement-Befestigungsabschnitt (15) mit einem bolzenartig ausgebildeten und ein Außengewinde (17) aufweisenden Anbringungsabschnitt (16) übergeht, – wobei an einem Befestigungsabschnitt (11) des Verdichtergehäuses (2) eine Durchgangsöffnung (25) vorgesehen ist, welche der Anbringungsabschnitt (16) durchgreift, – wobei das Befestigungselement (20) als Gewindemutter (26) ausgebildet ist, welches zur Fixierung des Adapterelements (10) am Verdichtergehäuse (2) von außen auf das Außengewinde (17) des Anbringungsabschnitts (16) aufgeschraubt ist. The invention relates to a radial compressor (1) for an exhaust gas turbocharger, - with a compressor housing (2) and a compressor wheel (6) arranged therein, - with an adapter element (10) attached to the compressor housing (2), which is designed such that between a Surface contour (13) of the adapter element (10) and a complementary wheel surface contour (9) of the compressor wheel (6) a passage gap (14) is formed, - the adapter element (10) by means of a fastening element (20) on the compressor housing (2) - The adapter element (10) has an adapter element main section (18), which in the axial direction (A) away from the compressor wheel (6) into an adapter element fastening section (15) with a bolt-like design and an ...

Fan motor and manufacturing method of the same

一種根據本發明一實施例的風扇馬達，可以包括：一葉輪，包含連接到一旋轉軸的一輪轂和設置在該輪轂的外表面上的至少一個葉片；一護罩，圍繞該葉輪的外圓周表面；以及一塗層，塗覆在該護罩的內圓周表面上。該塗層可以包含：一聚合物，具有硬度低於該葉片的硬度；以及複數個珠子，與該聚合物混合並且具有硬度大於該聚合物的硬度。

Rotary pump

A rotary pump 10, e.g. a centrifugal slurry pump, has a main casing 12 housing an impeller 18 rotatable in an impeller cavity 16 defined between end liners 25, 28 and a peripheral main casing portion 24. The end liner 28, at a suction end of the impeller, is slidingly sealed via an annular seal 32 against the main casing portion 24. A radially inner, axially outwardly extending tubular portion 36 integral with the end liner 28 is aligned with a stationary tubular inlet portion 40. Seats 38, 44 respectively on the tubular portions 36, 40 oppose each other over a bridge cavity accommodating an annular bridge 50 which is expansible to allow the end liner 28 to be adjusted axially to close any gap with the impeller 18 caused by wear. Two variations of the annular bridge 50 are disclosed.

Side liner for a pump

一种泵侧件，包括：具有中心轴线、前面、后面和周边沿的侧壁部分；直径小于所述侧壁部分的入口部分，所述入口部分与所述侧壁部分的前面共轴并且从所述侧壁部分的前面延伸并且终止于自由端，所述泵侧件还包括在所述入口部分的所述自由端处的居中或对准表面，以及在所述沿上的另一居中或对准表面，其中所述居中或对准表面被加工成彼此平行并且平行于所述中心轴线，其中所述居中表面中的一个与泵的外罩的协同操作的表面相配合并且所述居中表面中的另一个与所述主件的协同操作的表面相配合，所述表面被布置为在使用中在它们之间邻接地滑动运动。

Centrifugal pump

ABSTRACT A centrifugal pump having an adjustable feature en-abling precise adjustment of the impeller's location.

Centrifugal pump

ABSTRACT OF THE DISCLOSURE A centrifugal pump having a packing seal in which rope packing is compressed between two facing seal walls extending radially from the pump shaft, one wall being on a stationary seal gland and the other wall being on a rotary member attached to the shaft; a centrifugal lubricator mounted on the shaft which has an annular tube with an entrance opening through which lubricant enters and exit openings through which the lubricant is centrifugally distributed; an adjustable feature enabling precise adjustment of the impeller's axial location; a removable seal housing; and a tangential flushing tube in a side wall of the seal housing.

Seal for a centrifugal pump

A seal for use in a centrifugal pump, the pump having a stationary pump casing, a stationary plate and an axially adjustable side liner, is disclosed. The seal includes a base having an inner surface and an outer surface. A band portion extends from the base and a retainer member extends from the band portion. The retainer member is spaced apart from the base and oriented for positioning against a groove formed in the axially adjustable side plate liner of the centrifugal pump.

Centrifugal pump

A centrifugal pump comprises an impeller (2a and 2b) which is rototable about an axis (X-X) inside a static volute (1). The pump is further provided with a sealing means (11). The sealing means (11) reduces or substantially eliminates the clearance between the surface of the suction side of the impeller (2a) and the static volute (1). The sealing means are axially adjustable.

Bearing carrier with multiple lubrication slots

A bearing assembly, a pump with a bearing assembly and a method of lubricating a pump bearing using a bearing assembly. The bearing assembly includes a bearing carrier (110) and a bearing housing (100) that are rotatably connected to one another to permit axial adjustment of the pump's impeller or other fluid- conveying apparatus, as well as variable rotational positioning (68) of the bearing carrier relative to a pump housing (10). Numerous lubricant access apertures (72) placed around the periphery of the bearing carrier facilitate lubricant passage from a connection (77) on the bearing housing to the bearings, regardless of the rotational position of the carrier relative to the bearing housing or other pump structure.

Sealing arrangement for adjustable elements of a pump

A seal, for use with pump casing elements that are adjustable relative to each other, includes an annular band and a resilient annular flange oriented at a non-perpendicular angle to a first surface of the annular band such that the seal, in use, is able to provide greater adjustment between the adjustable pump elements while maintaining a reliable seal between the pump elements.

Method and apparatus for adjusting impeller clearance in a pump

An impeller clearance adjustment system for providing for a desired clearance between an impeller and a housing by adjusting a spacing ( 10 ) between a thrust housing ( 11 ) and a frame ( 12 ) using a plurality of evenly-spaced shoulder screws ( 21 ) locked into a screwed-in position by respective lock nuts ( 22 ). A shoulder portion ( 21 a ) of each shoulder screw ( 21 ) keeps the thrust housing ( 11 ) from coming closer to the frame ( 12 ) than the adjusted spacing ( 10 ).

Inflating device and method

Centrifugal pump and method for adjusting an axial gap

Kreiselpumpe (1), umfassend ein Pumpengehäuse (2) mit einem davon umgebenen Strömungskanal (20) mit einer an einer Pumpen-Saugseite (19) angeordneten Ansaugöffnung (6) und einer Auslassöffnung (7), ein in dem Strömungskanal (20) drehbar angeordnetes, offenes oder halb-offenes Laufrad (8) mit mindestens einem Förderflügel (9, 10), welcher eine zur Saugseite (19) hin gewandte Flügelseitenkante (11, 12) aufweist, und einen an der Saugseite (19) an dem Pumpengehäuse (2) angeordneten Gehäusedeckel (5).Der Gehäusedeckel (5) weist eine dem Laufrad (8) zugewandte Stirnseitenfläche (13) auf, welche einen Abschnitt einer Gehäusewandung (14) des Strömungskanals (20) bildet und unter Ausbildung eines Spalts (15) zwischen der Stirnseitenfläche (13) und der Flügelseitenkante (11,12) in unterschiedlichen Abständen zu der Flügelseitenkante (11,12) anordenbar ist. Centrifugal pump (1), comprising a pump housing (2) with a flow channel (20) surrounded by it, with a suction opening (6) arranged on a pump suction side (19) and an outlet opening (7), one rotatably arranged in the flow channel (20) , open or half-open impeller (8) with at least one delivery vane (9, 10), which has a vane side edge (11, 12) facing the suction side (19), and one on the suction side (19) on the pump housing (2 The housing cover (5) has an end face (13) facing the impeller (8), which forms a section of a housing wall (14) of the flow channel (20) and forms a gap (15) between the End face (13) and the wing side edge (11,12) can be arranged at different distances from the wing side edge (11,12).

Cutter pump with adjusting means

Pompe dilacératrice, comprenant un arbre (1) entraîné en rotation par un moteur, un impulseur (2) solidaire en rotation de l'arbre (1), du fluide véhiculé passant entre un couteau (6) solidaire de l'arbre (1) et une bague (7) sécatrice, le couteau (6) et la bague (7) sont en regard par des surfaces munies de moyens de dilacération, la distance ou jeu de dilacération entre le couteau (6) et la bague (7) sécatrice est réglable par des moyens (15) de réglage. Macerator pump, comprising a shaft (1) driven in rotation by a motor, an impeller (2) integral in rotation with the shaft (1), fluid carried between a knife (6) integral with the shaft (1) and a ring (7) secateurs, the knife (6) and the ring (7) are facing by surfaces provided with means of disintegration, the distance or clearance between the knife (6) and the ring (7) secateur is adjustable by means (15) of adjustment.

Sealing arrangement for adjustable elements of a pump

Adjustable side liner for pump

An adjustment assembly for pump casing of a pump, the pump casing including a main part and a side part having a main axis and a side wall section extending laterally with respect to the main axis. The adjustment assembly is operable to cause relative displacement between the side part and the main part of the pump casing. The adjustment assembly includes a drive device and an actuator which can be activated externally of the pump, the drive device being operable to cause the relative displacement of the side part in response to activation of said actuator, the relative displacement capable of being a combination of axial and rotational movement.

centrifugal

Self-monitoring system for evaluating and controlling adjustment requirements of leakage restricting devices in rotodynamic pumps

提供了一种自监测调节系统，用于评估和实现转子动力泵的转动元件和非转动元件之间的泄漏限制机构的调节，以限制泄漏和在泵的转动元件和非转动元件之间建立所期望的间隙尺寸。调节系统被构造成是自监测的，用以确定依据泵的状况何时准许对泄漏限制机构进行调节，并且被构造有可响应于监测的泵状况而进行自调节的调节机构，但也能进行人工调节。

Plug-in coolant pump with sealing washer for the minimization of a sealing gap

Die Erfindung betrifft eine Einsteckkühlmittelpumpe (1) für Kraftfahrzeuge aufweisend ein Flügelrad (30), das von einem Pumpengehäuse (3) umgeben ist, wobei das Flügelrad (30) mittels einer Pumpenwelle (2) um eine Längsachse (100) antreibbar ist, die das Pumpengehäuse (3) durchsetzt, und wobei zwischen der Pumpenwelle (2) und dem Pumpengehäuse (3) eine Dichtung (4) zur Abdichtung des kühlmittelführend Pumpengehäuses (3) vorgesehen ist, wobei das Pumpengehäuse (3) Haltedome (12) aufweist, auf denen eine Dichtscheibe (16) befestigt ist, die einen Dichtspalt (19) zwischen einem Pumpenzulauf mit Druckschräge und dem offenen Flügelrad (30) einstellt.

Shaft seal.

A centrifugal pump having a packing seal in which rope packing (216) is compressed between two facing seal walls (208, 210) extending radially from the pump shaft, one wall (208) being on a stationary seal gland and the other wall (210) being on a rotary member attached to the shaft.