УСТРОЙСТВО ПЕРЕДАЧИ ГИДРАВЛИЧЕСКОЙ ЭНЕРГИИ

Изобретение относится к устройствам передачи гидравлической энергии, которые работают на принципе смещения текучей среды посредством закрепляющейся трохоидной зубчатой передачи, и более конкретно к уменьшению сил трения в таких системах. Устройство передачи гидравлической энергии с трохоидной зубчатой передачей использует соосную ступицу с наружным и/или внутренним ротором 40 и соответствующим узлом подшипника с элементом качения, который использует предварительно нагруженные подшипники 44, 46 для точного задавания оси вращения и/или осевого положения ротора 40, с которым он связан. Это позволяет постоянному зазору между поверхностями ротора 40 и поверхностями кожуха или другого ротора быть заданным на расстоянии, которое сводит к минимуму сдвигающие силы рабочей текучей среды и/или обходную утечку и исключает износ зубьев зубчатой передачи, таким образом, сохраняя эффективную герметизацию между камерами. 21 з.п. ф-лы, 13 ил.

МАШИНА ДЛЯ РАСШИРЕНИЯ ИЛИ СЖАТИЯ ГАЗООБРАЗНЫХ СРЕД

Изобретение относится к машине для снижения давления или сжатия газообразных сред. Машина содержит корпус (10) и по меньшей мере один винтовой ротор (36, 38), расположенный в корпусе (10) и простирающийся между стороной (62) низкого давления и стороной высокого давления. Ротор (36, 38) установлен в корпусе (10) с обеих сторон посредством комплекта (92, 94, 96, 98) подшипников. Каждый комплект (92, 94, 96, 98) имеет по меньшей мере один радиальный подшипник (102), и по меньшей мере один из комплектов (96, 98) имеет по меньшей мере один действующий в осевом направлении подшипник (104), подпирающий по меньшей мере один ротор (36, 38) в осевом направлении против движения перемещения из его рабочего положения в направлении (112, 114) стороны (62). По меньшей мере один ротор (36, 38) снабжен по меньшей мере одним осевым упорным подшипником (212, 214), подпирающим в осевом направлении по меньшей мере один ротор (36, 38) таким образом, что находящаяся со стороны высокого давления торцевая сторона ...

ВИНТОВОЙ НАСОС

Изобретение относится к винтовому насосу. Винтовой насос содержит корпус (2), который окружает нагнетательную камеру (5), приводной винт (7) и противоположно вращающийся ведомый винт (8), корпусную вставку (6), расположенную в корпусе (2), в которой установлены винты (7, 8), по меньшей мере, один присоединенный к вставке (6) опорный элемент (13', 13ʺ), на котором расположены опоры (12) винтов (7, 8), и по меньшей мере одну закрывающую корпусное отверстие корпусную крышку. Элемент (13', 13ʺ) с вставкой (6) и винтами (7, 8) образует модуль (15), который после удаления корпусной крышки через корпусное отверстие выполнен с возможностью извлечения из корпуса (2). Винтовой насос имеет, по меньшей мере, одну съемную направляющую рельсовую систему, которая имеет, по меньшей мере, один проходящий в продольном направлении винтового насоса направляющий рельс, на котором модуль (15) направляется в корпусе (2) в аксиальном направлении. Изобретение направлено на обеспечение простых и экономичных работ ...

ОБОЮДНО ШНЕКОВЫЙ БЛОК ПОДВИЖНЫХ РАБОЧИХ КАМЕР МЕХАНИЧЕСКОГО СЖАТИЯ ИЛИ ИСПОЛЬЗОВАНИЯ ДАВЛЕНИЯ СЖАТОГО ЖИДКОГО И/ИЛИ ГАЗООБРАЗНОГО РАБОЧЕГО ТЕЛА, СПОСОБ ИЗГОТОВЛЕНИЯ СФЕРИЧЕСКОЙ СПИРАЛЬНОЙ СТЕНКИ СФЕРИЧЕСКОГО ШНЕКА ОБОЮДНО ШНЕКОВОГО БЛОКА

FIELD: engines and pumps. SUBSTANCE: invention relates to compressors or engines. Double-auger unit of movable working chambers of mechanical compression or using pressure of liquid and/or gaseous working body comprises one auger integrating one lengthwise end face of helical wall with bottom, and another auger integrating opposite end face of the like helical wall with bottom. Movable augers are driven by clamping device and/or converting drive. Augers feature spherical or flat shape. Helical walls together with bottoms of both augers are displaced through half the pitch of generating spiral minus sum of thickness of both helical walls. Space between bottoms of both augers is separated by helical walls into tight chambers arranged on both sides of either helical wall. Helical wall of one auger can roll in whatever direction and slide along two helical surfaces of helical wall of the other auger to vary volume of chambers formed and disappeared in space between bottoms of augers. EFFECT: reduced friction of working surfaces. 24 cl, 34 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 373 400 (13) C2 (51) МПК F01C F01C F01C F02B F02B B23C 9/00 (2006.01) 11/00 (2006.01) 17/00 (2006.01) 53/08 (2006.01) 55/02 (2006.01) 3/32 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2007145817/06, 10.12.2007 (24) Дата начала отсчета срока действия патента: 10.12.2007 (43) Дата публикации заявки: 20.06.2009 (72) Автор(ы): Рубанов Дмитрий Александрович (RU) (73) Патентообладатель(и): Рубанов Дмитрий Александрович (RU) R U (45) Опубликовано: 20.11.2009 Бюл. № 32 2 3 7 3 4 0 0 (56) Список документов, цитированных в отчете о поиске: RU 2208681 С2, 20.07.2003. SU 1301582 A1, 07.04.1987. RU 2155272 C1, 27.08.2000. US 2353373 A, 11.07.1944. US 6533561 B1, 18.03.2003. 2 3 7 3 4 0 0 R U (54) ОБОЮДНО ШНЕКОВЫЙ БЛОК ПОДВИЖНЫХ РАБОЧИХ КАМЕР МЕХАНИЧЕСКОГО СЖАТИЯ ИЛИ ИСПОЛЬЗОВАНИЯ ДАВЛЕНИЯ СЖАТОГО ЖИДКОГО И/ИЛИ ...

ВИНТОВОЙ КОМПРЕССОР С ВПРЫСКОМ ТЕКУЧЕЙ СРЕДЫ

FIELD: machine building. SUBSTANCE: screw compressor with fluid medium injection includes two interacting rotors 2 and 3 which are mounted on supports in housing 1 in radial and axial directions. Housing forms rotor chamber 4, in which two rotors 2 and 3 are located, and in which there is fluid medium circulation and injection circuit 11. Radial support, at least of one rotor, is formed due to contact of that rotor with some part of wall of housing 1, which is opposite to external outline of that rotor, and/or due to interaction with the other rotor and maximum by means of one additional radial support. EFFECT: reduction of compressor cost; simplification of its design. 15 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 465 463 (13) C2 (51) МПК F01C 21/02 F04C 18/16 (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010153241/06, 15.05.2009 (24) Дата начала отсчета срока действия патента: 15.05.2009 (72) Автор(ы): ПАУВЕЛС Рафаэль Анри Мария (BE), ЭРНЕНС Филипп Альфонс Луи (BE) (43) Дата публикации заявки: 10.07.2012 Бюл. № 19 2 4 6 5 4 6 3 (45) Опубликовано: 27.10.2012 Бюл. № 30 (56) Список документов, цитированных в отчете о поиске: US 3246612 А, 12.04.1966. СН 396289 А, 31.07.1965. GB 696008 А, 19.08.1953. RU 2107192 С1, 20.03.1998. SU 1454263 A3, 23.01.1989. 2 4 6 5 4 6 3 R U (86) Заявка PCT: BE 2009/000025 (15.05.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 27.12.2010 (87) Публикация заявки РСТ: WO 2009/143589 (03.12.2009) Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" (54) ВИНТОВОЙ КОМПРЕССОР С ВПРЫСКОМ ТЕКУЧЕЙ СРЕДЫ (57) Реферат: Изобретение относится к винтовому компрессору с впрыском текучей среды. Винтовой компрессор с впрыском текучей среды содержит два взаимодействующих ротора 2 и 3, которые в радиальном и в осевом направлениях смонтированы на опорах в корпусе 1. Корпус образует роторную камеру 4, в которой расположены два ...

РОТОРНАЯ РАСШИРИТЕЛЬНАЯ МАШИНА

Роторная расширительная машина может быть использована в области энергетического машиностроения. В качестве рабочего тела в роторной расширительной машине используется водяной пар, который подводится через входной канал к роторам, выполненным в виде колес Рутса. Роторы делают составными из нескольких пластин, которые при сборке плотно прижимают друг к другу. Корпус роторной машины состоит из роторного корпуса и двух крышек, выполненных одинаковыми по конструкции. Расширяются функциональные возможности машины, упрощается конструкция роторов и сборка всей машины. 2 з.п.ф-лы, 2 ил.

Подшипниковый узел ротора винтового компрессора

Изобретение относится к подшипниковым узлам ротора винтового компрессора. Подшипниковый содержит последовательно установленные опорный роликовый подшипник (1) и радиально-упорные подшипники (2) качения с осевым предварительным натягом, а также два самоустанавливающихся элемента (3, 4), установленных с обеих сторон от радиально-упорных подшипников (2) качения. Элементы (3, 4) выполнены в виде двух втулок, сопряженных друг с другом по сферической поверхности, центр которой расположен на оси ротора. Одна из втулок выполнена с форсункой для подвода масла в подшипники (2), связанной с диаметральной канавкой, выполненной на ее сферической поверхности. Изобретение направлено на повышение надежности работы подшипникового узла ротора винтового компрессора за счет обеспечения компенсации перекосов упорных поверхностей, возникающих от прогиба вала ротора при работе компрессора. 4 ил.

ВИНТОВОЙ НАСОС

ЛОПАСТНОЙ ПНЕВМОДВИГАТЕЛЬ

Изобретение относится к пневматическому двигателю лопастного типа с уменьшенным износом лопасти при работе на высоком давлении. Пневмодвигатель (100) содержит корпус с впускным и выпускным отверстиями (102, 104), ротор, с возможностью вращения закрепленный в корпусе, лопасти, вставленные в ротор. Пневмодвигатель (100) дополнительно содержит стопоры лопастей, выполненные выступающими за верхнюю и нижнюю части внутренней стороны лопасти, внутреннее кольцо, сопряженное с верхней центральной частью ротора для выталкивания стопоров наружу для инициирования движения, и упорные подшипники, установленные в верхней и нижней части ротора для предотвращения перемещения стопоров наружу. По меньшей мере на одной, верхней или нижней, части ротора дополнительно установлена крышка, на которой выполнены направляющие пазы для направления лопастей. Изобретение позволяет увеличить выходную мощность двигателя. 3 з.п. ф-лы, 9 ил.

Drehanlage für flüssige Medien

KOMBINIERTES SCHUB- UND DREHLAGER

Axialkugellager

ZWEIWELLENVAKUUMPUMPE MIT SCHOEPFRAUM.

The pump (1) has at least one suction space containing a respective rotor pair (8,9) defined between two end plates and a side space containing a synchronising drive (23,24) with two cog wheels. One end of one shaft (2,3) is coupled to the drive motor, (22) with both shafts (2,3) of the vacuum pump (1) arranged vertically. The side space for the synchronisation drive (23,24) and the coupling between the shaft and the drive motor (22) are positioned below the lower must rotor pair (8,9). Pref. the pump inlet (29) lies above the uppermost pump stage and the outlet (36) is below the lowermost pump stage.

Zahnradpumpe

Lever piston two stroke or four stroke compact smooth running motor of single, double or multi-cylinder design for IC engines, piston motors

The piston has two work faces and operates in a cylinder shaped as the segment of a circle. At either end of the cylinder are inlet (Ein) and exhaust (Aus) valves and sparking plugs so that as the piston moves backward and forward in the section of the cylinder they face the normal four stroke(Hub 1-4) cycle is performed. The reciprocating movement of the piston assembly is transferred to the crankshaft by a lever/connecting rod system. A fine gap exists between the surfaces of piston and cylinder ...

Gear pump bearings with hybrid pads

Vacuum pump with biased stator seals and method of manufacture thereof

Scroll fluid machine

Scroll pump having axially compliant spring element

BUSHING ARRANGEMENTS FOR ROTARY SHAFTS

... 1,272,196. Bearings. GENERAL SIGNAL CORP. 24 Sept., 1970 [26 Sept., 1969], No. 45611/70. Heading F2A. [Also in Division F1] A rotary shaft 15 is journalled in a bush 19 located in a bore 23 in a structural member. A clearance 28 is provided between the outer periphery of the bush and the wall of the bore, the clearance being at least coextensive with the load zone of the bush in the circumferential direction, extending longitudinally from one end of the bush at least half the length of the bush, and being tapered to a maximum radial width at one end of the bush. Preferably, the wall of the bore is cylindrical and the outer periphery of the bush is conical. The bush may be bronze-lined with a steel backing, or may be solid bronze. As described, four bushings are provided for the shafts of a high pressure gear pump, the clearance being provided at the end of the bush nearer the gear. Wear plates 17, 18 are provided, one (17) being fixed and the other being movable.

SCROLL-TYPE ROTARY FLUID-MACHINE

The machine may be compressor and has a drive shaft 13 supported by a bearing 30 lodged in an end plate 11 of a housing 10 and carrying a seal assembly 20, which is accommodated by an annular sleeve 17 projecting from the said plate. ...

Bearing assembly for sealed compressor

A compressor

A hydraulic machine

Bearing support and pump

A support element 50 for mounting a bearing and a pump (10, Fig 1) comprising the support element are claimed. The support element comprises a distortable portion 56 and a bearing mounting portion, or inner hub (54, Fig 4), the distortable portion being linked to the bearing mounting portion and being formed of a plurality of materials, such as aluminium and low carbon steel. Each of the materials having a different coefficient of thermal expansion such that a change in temperature of the distortable portion causes the distortable portion to distort due to differential expansion of the materials. The support element is configured such that distortion of the distortable portion displaces the bearing mounting portion in an axial direction relative to an axis of the rotatable shalt that the bearing is configured to support, an amount of axial displacement being dependent on the temperature change. The support element may comprise bimetallic strips and / or a heater. The pump comprises at least ...

Pump assemblies with stator joint seals

Rotary piston and cylinder device

MESHING-SCREW GAS-COMPRESSING APPARATUS

Gear pump with self-lubricating bearings

Disclosed is a gear pump including at least two shafts, where the rotors are located on respective shafts between first and second ends, each end supported by a journal bearing 26, where each journal bearing includes a lubrication interface and at least one high pressure zone, where there is a pressure relief valve 40 located on the flow path 44 between the lubrication interface and the high pressure zone on at least one of the journal bearings in the pump. There may be pressure relief valves located in the flow paths of all four journal bearings. The gear pump may be the fuel supply pump for a jet engine. Two journal bearings may be in contact and arranged such that they share a flow path from high pressure zone to lubrication interface, this arrangement may be found on each end of both shafts such that there are two pairs of contacting journal bearings.

ENGINE PUMP UNIT

INTERIOR GEAR PUMP WITH RECESSES AT THE GEAR WHEEL STORAGE SPACES

ROTATION POSITIVE-DISPLACEMENT PUMP WITH LIMITED RADIAL SPACE REQUIREMENT

GEAR PUMP

MULTI-LEVEL SCREW SPINDLE COMPRESSOR

POSITIVE-DISPLACEMENT ENGINE

SCREW COMPRESSOR

GEAR PUMP

TESTING BEARINGS

Submersible pump assembly for use in a borehole

Abstract The invention relates to a submersible pump assembly for use in a borehole, comprising a screw pump and/or an eccentric screw pump with a longitudinal axis. The 5 submersible assembly further comprises a drive and a bearing arrangement for taking up and diverting the axial and/or radial forces arising during the operation of the screw pump and/or eccentric screw pump. The drive is disposed, via a first coupling rod, at one end of the screw pump and/or eccentric screw pump and the bearing arrangement is assigned, via a second coupling 10 rod, to the opposite end of the screw pump and/or eccentric screw pump along the longitudinal axis. Figure 1 SR Fig 1 BL,30 H' 7 r28 ...

GEAR PUMP

A gear pump for the dosed conveyance of pigmented lacquers or paints and which is adapted for use with a painting robot. The gear pump comprises two toothed wheels meshing with one another and which are mounted within a pump housing in such a manner that they can be rotated by a driven drive shaft and a fixed bearing shaft. For this, the drive shaft is mounted by a bearing section at multiple points in a pump housing and a coupling section of the drive shaft projects out of the pump drive to connect to a drive. In order, on the one hand, to avoid wear due to high pressure forces and, on the other hand, to absorb a pronounced load from the outside, a supporting bearing for the radial and axial support of the drive shaft is formed on the drive shaft's coupling section projecting outside of the pump housing.

COMPRESSOR CRANKSHAFT WITH BEARING SLEEVE AND ASSEMBLY METHOD

A compressor assembly having a drive shaft supported by a main bearing and an outboard bearing located on opposite axial ends of a cylinder block. The main bearing has a bearing support formed therein in which first and second apertures are defined. The diameter of the first aperture is less than the diameter of the second aperture. The shaft extends through the first and second apertures with the diameter of the drive shaft having an outer diameter which is no greater than the diameter of the first aperture. A sleeve is mounted on the drive shaft and is at least partially disposed within the second aperture. A bearing is located in the second aperture and engages the sleeve and the main bearing to rotationally support the drive shaft. The sleeve can have a thickness which allows the bearing to be of a standard size rather than a custom size.

GEAR PUMP

A gear pump for the dosed conveyance of pigmented lacquers or paints and which is adapted for use with a painting robot. The gear pump comprises two toothed wheels meshing with one another and which are mounted within a pump housing in such a manner that they can be rotated by a driven drive shaft and a fixed bearing shaft. For this, the drive shaft is mounted by a bearing section at multiple points in a pump housing and a coupling section of the drive shaft projects out of the pump drive to connect to a drive. In order, on the one hand, to avoid wear due to high pressure forces and, on the other hand, to absorb a pronounced load from the outside, a supporting bearing for the radial and axial support of the drive shaft is formed on the drive shaft's coupling section projecting outside of the pump housing.

HORIZONTAL CENTRIFUGAL PUMPING SYSTEM

The present invention provides a thrust bearing assembly and a horizontal skid utilized in a horizontal pumping system. In one embodiment, the thrust bearing assembly comprises a cylindrical open housing, at least one radial ball bearing, at least one rotating seal, and at least one axial thrust bearing. The axial thrust bearing does not have to be completely submerged in lubricant.

MODULAR THRUST-COMPENSATING ROTOR ASSEMBLY

A modular rotor assembly for a screw pump including a power rotor and an idler rotor having respective first ends adapted to be disposed in a suction side of the screw pump and respective second ends adapted to be disposed in a discharge side of the screw pump, the power rotor including a balance piston adapted to be disposed within a pump housing of the screw pump with a radial clearance between an entire circumference of the balance piston and the pump housing is in a range between 1 micron and 200 microns, wherein the power rotor is provided with a tapered bearing surface configured to define a wedge- shaped, radial gap axially intermediate the power rotor and the idler rotor.

MODULAR THRUST-COMPENSATING ROTOR ASSEMBLY

A modular rotor assembly for a screw pump including a power rotor and an idler rotor having respective first ends adapted to be disposed in a suction side of the screw pump and respective second ends adapted to be disposed in a discharge side of the screw pump, the power rotor including a balance piston adapted to be disposed within a pump housing of the screw pump with a radial clearance between an entire circumference of the balance piston and the pump housing is in a range between 1 micron and 200 microns, wherein the power rotor is provided with a tapered bearing surface configured to define a wedge- shaped, radial gap axially intermediate the power rotor and the idler rotor.

PUMP

The present invention relates to a pump (10) comprising a shaft (15) supported for rotation by a bearing (38) carried by a bearing carrier (48), said bearing carrier having a generally outer radial portion (52) which is fixed relative to a pump housing (12) and a generally inner radial portion (54) which is fixed relative to the bearing, wherein the carrier is stiff in a radial direction between said inner and outer portions and flexible in an axial direction for restraining radial movement of the bearing and allowing axial movement.

VARIABLE CAPACITY SCREW COMPRESSOR AND METHOD

A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. A method for sizing at least two variable capacity screw compressors and a refrigeration chiller incorporating a variable capacity screw compressor are separately presented.

Verfahren und Vorrichtung zum Ausgleich des Druckes in den Stirnseitenspalten von Drehkolbenverdichtern.

Hydraulische Maschine mit Zahnrädern und mindestens einem aufgeschlitzten Lagerkörper

HYDRAULIC SCREW MACHINE.

GEAR WHEEL MACHINE, IN PARTICULAR GEAR PUMP FOR LOESUNGEN OR MELTING POLYMERS.

EXHAUSTCLAIMANT ROTARY PISTON LOADER.

BLADE MACHINE WITH THE STATIONARY AND REVOLVING PARTS OF THE CYLINDER

DEVICE WITH ROTATING PISTON AND CYLINDER

MUCH STEPPED PLATE PUMP

Anti-friction bearing carrier module and compressor

An anti-friction bearing carrier module (100) for a machine is described, which anti-friction bearing carrier module (100) has a carrier (100) for mounting on the machine, wherein the machine has a hole, into which a shaft with a bearing surface which extends in the radial direction extends at least partially in the axial direction, wherein the end surface and the contact surface extend substantially parallel to one another. Furthermore, the anti-friction bearing arrangement (100) has a first anti-friction bearing (130) and a second anti-friction bearing (140), wherein one end surface of the first anti-friction bearing (130) is aligned with a plane (180) which corresponds to the end surface of the machine or the contact surface of the shaft, wherein the first anti-friction bearing (130) is configured to dissipate axial forces in at least one direction via the side surface to a component in a corresponding plane of the other surface of the end surface and the contact surface, and wherein ...

Rotary compressor

Improvements with the compressors and engines with co-operating rotors

AGENCEMENT DE PALIERS DE COMPRESSEUR A VIS, CE COMPRESSEUR ET PROCEDE POUR EMPECHER LE CONTACT ENTRE UN ROTOR ET UNE PAROI DE LA CHAMBRE DE TRAVAIL D'UN COMPRESSEUR

L'INVENTION CONCERNE UN AGENCEMENT DE PALIERS POUR ARBRE DE ROTOR DE COMPRESSEUR A VIS. IL COMPREND UN JEU DE PALIERS 30, 32, 34, 36 MONTE SUR L'ARBRE 18 DU ROTOR 16 ENTRE UNE PREMIERE CALE 28 ETABLISSANT LE JEU DE TRAVAIL 48 ENTRE LA FACE EXTREME 50 A HAUTE PRESSION DU ROTOR 16 ET LA PAROI EXTREME 46 A HAUTE PRESSION DE LA CHAMBRE 14 DE TRAVAIL DU COMPRESSEUR, ET UNE SECONDE CALE 60 DISPOSEE ENTRE LE JEU DE PALIERS ET UNE ENTRETOISE 56 ET ETABLISSANT UN INTERVALLE 70, INFERIEUR AU JEU 48 ET SUR LEQUEL LE ROTOR 16 PEUT SE DEPLACER AVANT D'ETRE ARRETE PAR LE CHAPEAU 24 D'EXTREMITE DU CORPS 12 DE PALIERS. DOMAINE D'APPLICATION : COMPRESSEURS A VIS.

SCROLL POSITIVE DISPLACEMENT PUMPING APPARATUS

MECHANISM WITH SLIDING BLOCK MATCHING RADIAL FOR RECEIVING A JOURNAL OF COMPRESSOR.

SCROLL COMPRESSOR HAVING A BASEPLATE INCLUDING FIRST AND SECOND CYLINDRICAL RIM PORTIONS

Le compresseur à spirales (2) comprend une enceinte hermétique (3) comprenant une coque médiane (4), un capuchon supérieur (5) et une plaque de base (6), la plaque de base (6) comprenant une base de montage (32) ayant une forme de plaque et comportant une ouverture centrale (33), et un capuchon central (28) agencé à l'intérieur de l'ouverture centrale (33), le capuchon central (28) comprenant une partie concave (29) et une première partie de rebord cylindrique (30) s'étendant vers le haut et ayant un diamètre extérieur correspondant sensiblement à un diamètre intérieur de la coque médiane (4) ; une unité de compression (11) configurée pour comprimer un fluide frigorigène ; et un moteur électrique (21) configuré pour entraîner l'unité de compression (11) par l'intermédiaire d'un arbre d'entraînement (19). La base de montage (32) comprend une deuxième partie de rebord cylindrique (34) s'étendant vers le haut et entourant l'ouverture centrale (33), où un diamètre intérieur de la deuxième partie ...

PRESSURE LOADED PUMP

Scroll compressor assembly, has bearing supports with outer ring whose lowermost portion extends for arc of approximately one hundred and twenty degrees between adjacent support arms and includes recessed portion

Compresseur spiro-orbital ayant une spirale fixe et une spirale mobile. Les spirales sont logées dans un boîtier définissant un collecteur ayant une bâche à huile. Un arbre est couplé à une extrémité de la spirale mobile ainsi qu'à un moteur placé dans le boîtier. Un support de palier est fixé dans le boîtier et comporte un orifice central recevant un palier. Le support de palier de l'arbre est en regard de la spirale orbitale. Le support de palier comporte un anneau extérieur et un ensemble de bras de support s'étendant à partir de l'anneau extérieur du bossage. La partie la plus basse de l'anneau extérieur s'étend librement sur un arc d'environ 120° entre les bras de support adjacents. La partie la plus basse de l'anneau extérieur est placée dans la bâche à huile et comporte une partie en creux formant un passage entre l'anneau extérieur et le boîtier pour la communication du liquide de lubrification.

Hydraulic machine as pump for power assisted steering

Machine hydraulique comportant un axe d'entraînement (27) portant à sa première extrémité une roue d'entraînement induisant des efforts dans l'axe avec une composante perpendiculaire à l'axe géométrique et une unité de pompe à son autre extrémité ; cette unité comprend un premier élément de pompe tournant avec l'axe d'entraînement et un élément de pompe fixe coopérant avec le premier élément. L'axe est muni d'un dispositif de paliers (33) décalé par rapport au tracé de l'axe géométrique (13) à l'état non chargé de l'axe d'entraînement (27) . Le décalage du dispositif de paliers (33) est prévu dans la direction de la composante de la force.

WAFER POLISHING APPARATUS AND METHOD FOR POLISHING WAFER BY USING THE SAME

GEROTOR APPARATUS FOR A QUASI-ISOTHERMAL BRAYTON CYCLE ENGINE

According to one embodiment of the invention, a gerotor apparatus includes an outer gerotor (46) having an outer gerotor chamber, an inner gerotor, at least a portion of which is disposed within the outer gerotor chamber, and a synchronizing apparatus (66, 67) operable to control the rotation of the inner gerotor relative to the outer gerotor. The inner gerotor includes one or more entrance passages operable to communicate a lubricant into the outer gerotor chamber. According to another embodiment, a gap between the end of the gerotor and a valve plate (8) may be adjusted by means piloted by a proximity sensor (80). © KIPO & WIPO 2008 ...

VANE-TYPE AIR MOTOR

VANE-TYPE AIR MOTOR

ROTARY PISTON MACHINE

The invention relates to a rotary piston machine having a housing (12) in which at least one first piston (22) is disposed that can revolve about a rotary axis (30) fixed to the housing, performing reciprocating motions when revolving about the rotary axis (30) between an end position near the rotary axis and an end position away from the rotary axis (30), in order to periodically reduce and enlarge a working chamber (34) bounded by an end face (38) of the piston (22) facing the rotary axis (30), wherein the rotary axis (30) runs through the working chamber (34), wherein the piston (22) comprises a control element (70) running along a control curve (66) fixed to the housing as the piston (22) revolves about the rotary axis (30), in order to derive the reciprocating motions of the piston (22) from the revolving motion, and wherein the piston (22) is disposed in a receptacle of a piston cage (50) to which the piston is rotationally fixed relative to the rotary axis (30) and that revolves ...

A GAS DRIVEN ROTATION MOTOR, A TOOL PROVIDED WITH A GAS DRIVEN ROTATION MOTOR AND A METHOD FOR REGULATING THE ROTATION SPEED OF A GAS DRIVEN ROTATION MOTOR

The invention relates to a gas driven rotation motor, a tool provided with a gas driven rotation motor and a method for regulating the rotation speed of a gas driven rotation motor. The gas driven rotation motor comprises a housing (2), a gas driven rotating member (1) comprising a rotor (3) and a rotor shaft (7,8) carrying the rotor and journalled in a first bearing (5,25) and a second bearing (6) supported in the housing (2), and a speed governor (4) for controlling a pressure gas inlet flow in response to the rotation speed of the rotating member. The first bearing (5, 25) comprises a set of rolling elements (12, 32), an outer race (9, 29) arranged in the housing and an inner race (10, 30) arranged on a shaft portion (7) of the rotating member, said set of rolling elements being in contact with said races on which the rolling elements roll. The motor further comprises a coupling device (15, 35) arranged to couple the speed governor (4) to the rolling elements (12,32) of the first bearing ...

REVOLVING VANE COMPRESSOR

A revolving vane compressor comprising, a cylinder rotatable about an axis of rotation; a vane rotatable with the cylinder; a rotor operatively connected to the vane such that rotation of the cylinder causes rotation of the rotor; a drive shaft coaxial with the cylinder and rotatable about the axis of rotation; a front cylinder cover rotatable with the cylinder by the drive shaft comprising at least one fluid inlet positioned circumferentially around the drive shaft, and adapted to receive a compressible fluid, wherein rotation of the cylinder would urge the compressible fluid through the fluid inlet and into the rotor.

ROTARY HELICAL SCREW-TYPE COMPRESSOR

Les deux moyeux (23, 29) du rotor d'un compresseur à vis situés côté pression sont supportés dans le carter (3) par un ensemble, à jeu axial libre, de roulements à billes à portée oblique (91, 93). Les roulements à billes reposent sur la face tournée vers le rotor (9, 11), ainsi que contre un épaulement interne (97) dudit carter (3) de rotor et contre une rondelle d'espacement (101) entourant l'un des moyeux (23, 29). La longueur de la rondelle d'espacement (101) excède la distance entre l'épaulement interne (97) et la face frontale (113) du carter tournée vers le rotor (9, 11). Cette distance excédentaire peut être choisie de façon à correspondre exactement à la largeur de l'ouverture du rotor entre la face frontale du rotor et la face frontale du carter. La rondelle d'espacement (101) peut en outre être configurée de façon à servir de bague de roulement en vue de la coopération avec un dispositif d'étanchéité isolant les moyeux.

ROTARY PISTON PUMP

Disclosed is a rotary piston pump comprising at least two rotors (8) with associated drive shafts (26). A bearing tube (28) which protrudes into the associated rotor (8) and through which the associated drive shaft (26) extends is associated with each rotor (8). A first gap (64) is provided between the interior face (24) of each rotor (8) and the exterior face of the bearing tube (28). Said first gap (64) contains liquid coolant during operation and is part of a liquid coolant circuit.

INTERNAL GEAR PUMP WITH RECESSES ON THE GEAR BEARING SURFACES

A positive-displacement pump, in particular for use in machines for dispensing fluids, comprises two elements that are rotatable with respect to one another and which mesh with one another (20, 30), each of them being rotatably mounted in the pump with centered coupling without interference with a corresponding centering body (18, 11a). At least one of the two above-mentioned rotatable elements has a plurality of undercut regions (26, 34, 35) at the location of the centering walls. The undercut regions (26, 34, 35) comprise a wall portion which is spaced with respect to the facing wall of the respective centering body.

METHOD FOR THE AXIAL POSITIONING OF BEARINGS ON A SHAFT JOURNAL

A method for the axial positioning of bearings on a shaft journal of a rotor whereby the axial play of the rotor in its housing is adjusted by affixing a spacer ring and two bearings with an interference fit such that the outer race is moved axially with respect to the inner race of the same bearing over a distance that is a function of the desired axial play.

Rotating machine having lubricant-containing recesses on a bearing surface

A rotating type machine including a first moving member having a first surface and a second member having a second surface slidably interfacing with the first surface. The first and second surfaces have relative movement therebetween, and one of the first and second members is supported by the other member through the interface of their respective first and second surfaces. At least one of the first and second surfaces is provided with at least one recess therein. A liquid lubricant is provided between the first and second surfaces, and the lubricant is received in the recess. Relative to the surface in which the recess is provided, the recess has a maximum depth which ranges between about 0.00125 and 0.0060 inches, and a surface area which ranges between about 1.767×10−4and 1.963×10−3square inches, whereby, during operation of the machine, a pressure spike is created in the lubricant above the recess, and first and second surfaces are hydrodynamically separated from each other by the pressure ...

Scroll type fluid machine having counter weight provided on driving bush and sub weight radially protruding from rotary shaft

A scroll type fluid machine having a driving system including a counter weight and a sub weight, in which an efficiency of an assembling operation is enhanced by simplifying an assembling structure of the driving system. In the fluid machine, a sub weight ( 17 ) is provided on a rotary shaft ( 16 ) and a counter weight ( 20 ) is provided on a driving bush ( 19 ) . The driving bush ( 19 ) is attached to the rotary shaft ( 16 ) by an attachment bolt ( 23 ) to prevent relative rotation between the rotary shaft and the driving bush. The rotary shaft ( 16 ) supported by a main bearing ( 18 ) and is driven in rotation by a motor ( 9 ), with the result that an orbiting scroll ( 4 ) performs an orbiting motion with respect to a fixed scroll ( 2 ).

Cantilever mount orbiting scroll with shaft adjustment

A scroll compressor of the type having a cantilever mounted shaft is provided with a carbon crankcase bearing. Further, the bearing mounting the eccentric pin within the orbiting scroll is also formed of a carbon material. The bearing mounting the lower end of the shaft is further formed of the carbon material. The carbon bearing insures that the shaft will be quickly worn away should there be shaft misalignment.

Scroll compressor having means for biasing an eccentric bearing towards a crank shaft

A scroll compressor includes a compression mechanism having a stationary scroll and an orbiting scroll in engagement with each other, a crank shaft for causing orbiting of the scroll relative to the stationary scroll, a bearing member for rotatably supporting the crank shaft and having a thrust bearing for axially supporting the orbiting scroll, an electric motor for driving the crank shaft, and an eccentric bearing radially movably accommodated within a recess defined in an end portion of the crank shaft. The orbiting scroll has a shaft journaled in the eccentric bearing. A leaf spring is interposed between the eccentric bearing and a side wall of the recess for pressing the eccentric bearing radially outwardly. The eccentric bearing has inclined planes defined on an external surface thereof for receiving a biasing force of the leaf spring so that an axial component of the biasing force is directed towards the crank shaft. Instead of forming the inclined planes on the eccentric bearing ...

HYBRID PUMP BEARING FOR CONTAMINATION RESISTANCE

A bearing carrier is provided. The bearing carrier including: a bearing body of a first material having a shaft-receiving aperture and a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier, wherein the bearing body includes a bearing face configured to be in a facing spaced relationship with the gears, wherein the bearing face includes a second material integral with the first material, wherein at least one of the first material and the second material define a portion of the bearing face of the bearing body extending about the shaft-receiving aperture, the portion of the bearing face excluding the bridgeland.

Screw machine and shaft bearing lubrication

BEARING DEVICE OF SCREW COMPRESSOR

PURPOSE: To respectively support a radial load and thrust load and lessen the deflection of a rotor by composing respective bearings for supporting respectively high pressure gas discharging sides of both male and female rotors meshing with each other or a single angular ball bearing. CONSTITUTION: A male rotor 1 and female rotor 2 mesh with each other and are received in a main casing 4. The male rotor 1 is driven by an electric motor 3 and the female rotor 2 is driven by the male rotor 1. Both male and female rotors 1, 2 are supported respectively by respective bearings 5, 6 on the suction side and by respective bearings 7, 8 on the discharge side. Then, the respective bearings 7, 8 on the discharge side are respectively composed of the same angular ball bearings. For example, the angular ball bearing on the male rotor 1 side is composed of three angular ball bearings 7a-7c for supporting the axial load urging the male rotor 1 away from a discharge end wall 9a and one angular ball bearing ...

SCREW COMPRESSOR

PURPOSE: To minimize oil pump capacity as well as to facilitate reduction of oil infusing amount into a compressor body by dewinding thrust engendered in the direction of intake side from discharge side. CONSTITUTION: A rotor 20 in free command of swiveling in a rotor chamber 25 is supported by bearings 21W23, a hydraulic piston 26 is housed in free command of slinding in a cylinder chamber 24 installed adjacent to said rotor chamber 25. And a rotor axle 30 is protruded in the cylinder chamber 24, whose extremity is provided with a thrust bearing 29, the outer ring of the bearing 29 is prevented from swiveling in such a way that said piston 26 is constantly in contact with the extremity side of this bearing 29 by a spring 33. Further, the rotor chamber side and counter-rotor chamber side of the cylinder chamber are constituted to be conducted through bypass passages 37, 38 equipped with a valve 36. Said valve 36 opens when pressure difference grows to be more than a settled value at the ...

FRICTION LOSS REDUCING DEVICE FOR SCROLL COMPRESSOR

PROBLEM TO BE SOLVED: To minimize friction loss generated in a process of transmitting rotating power of an electric motor to a rotating scroll and wear of parts in a scroll compressor and to facilitate replacement of worn parts. SOLUTION: In this friction loss reducing device for a scroll compressor, a floating member 110 is retained by an insertion groove 8a of a hub 8 formed ay a lower part of the rotating scroll 5 in such a manner that the member 110 can rotate and idle, and a slide bush 10 fixed on an eccentric part 4a of a rotating shaft 4 is inserted in a center of the floating ring member 110. COPYRIGHT: (C)2003,JPO ...

ВИНТОВОЙ КОМПРЕССОР

Изобретение относится к винтовому компрессору. Винтовой компрессор содержит корпус, в котором расположены основной винт и вспомогательный винт, которые имеют соответственно вал и винтовой ротор. Вспомогательный винт в осевом направлении опирается на основной винт. Только основной винт имеет вращающуюся осевую опорную часть, которая опирается на неподвижную осевую опорную часть корпуса. За счет отсутствия упорного подшипника между вспомогательным винтом и корпусом упрощена опора вспомогательного винта. 14 з.п. ф-лы, 8 ил.

КОМПРЕССОР

FIELD: machine building. SUBSTANCE: invention relates to compressor industry, to variable speed compressors. A compressor comprises a crankshaft, a bearing, an oil sump, an oil pump and a branch pipe for pressure balancing. The crankshaft comprises an oil supplying channel made in the shaft in the longitudinal direction. The bearing supports the lower part of the crankshaft with the possibility of rotation. The oil sump is set near the lower part of the crankshaft. The oil pump comprises an oil inlet port, an oil outlet port, an oil receiving chamber and an oil discharge chamber. The oil inlet port can be located below the oil level in the oil sump and be hydraulically communicated with the oil receiving chamber. The oil discharge chamber can be hydraulically communicated with the oil supplying channel in the lower part of the crankshaft via the oil outlet port. The pressure balancing branch pipe provides for hydraulic connection between the space above the oil level in the oil sump and the oil receiving chamber. Oil consumption does not essentially depend on the rotation speed of the crankshaft. EFFECT: improved design. 20 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 553 586 C2 (51) МПК F04B 39/02 (2006.01) F04C 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013147700/06, 30.03.2012 (24) Дата начала отсчета срока действия патента: 30.03.2012 (72) Автор(ы): У Цзибао (CN), СУНЬ Цинфэн (CN) 31.03.2011 CN 201110089527.2; 31.03.2011 CN 201120103771 R U (73) Патентообладатель(и): ЭМЕРСОН КЛАЙМИТ ТЕКНОЛОДЖИЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.05.2015 Бюл. № 13 2 5 5 3 5 8 6 (45) Опубликовано: 20.06.2015 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: JPH11280668A,15.10.1999.SU840464A, 23.06.1981. SU1771517A3, 23.10.1992. JPH01257787A,13.10.1989. US2007071627A1 29.03.2007 (86) Заявка PCT: US 2012/031621 (30.03.2012) C 2 C ...

Bearing for dry-compressing screw pump, has non-fixed bearing with inner ring race firmly placed on cylinder sleeve, and inner ring of non-fixed bearing sealed with sealing ring between cylinder sleeve and spindle rotor shaft end

The bearing has a crown or bevel gear (5) with a rotor-fixed gear wheel (11) on a side of a fixed bearing (10). A non-fixed bearing (13) with an inner ring race is firmly placed on a cylinder sleeve (16), which is provided on an oil film displaceably in an axial direction, and is enclosed on a gas inlet-sided spindle rotor shaft end. An oil film is originated from a centrical cooling oil borehole (7). An inner ring of the non-fixed bearing is sealed with a sealing ring between the cylinder sleeve and the spindle rotor shaft end.

SPIRALFLUIDVERDRAENGERVORRICHTUNG MIT WELLENLAGERUNG

Lagerung des Laeufers bei Vielzellenkraftmaschinen oder Rotationskompressoren, die mit einem grossen Waermegefaelle arbeiten

Schraubenspindelpumpe mit integriertem Druckbegrenzungsventil

Offenbart wird eine Schraubenspindelpumpe mit einem Pumpengehäuse, an dem ein Flanschabschnitt zur Montage der Pumpe ausgeformt ist sowie mit einem integrierten Druckbegrenzungsventil. Erfindungsgemäß ist das Druckbegrenzungsventil im Flanschabschnitt des Pumpengehäuses in dieses eingebaut.

DURCHBIEGUNGSKOMPENSATION FUER DREHKOLBENMOTORE

Verwendung eines Wälzlagers zur Lagerung rotierender Bauteile in Vakuumeinirchtungen sowie Vakuumeinrichtung

Ein Wälzlager zur Lagerung rotierender Bauteile in Vakuumeinrichtungen weist mehrere zwischen Lagerelementen (12, 14) angeordnete Wälzkörper (10) auf. Ein Lagerraum (26) ist beispielsweise beidseitig durch Dichtelemente (22, 24) verschlossen. Die Dichtelemente (22, 24) weisen einen geringen Dichtspalt (s) auf. Erfindungsgemäß erfolgt ein Verwenden derartiger Wälzlager in Vakuumbereichen, in denen ein Druck von weniger als 10-3 mbar herrscht.

Flügelzellenverdichter

Drehkolbenanlage für flüssige Medien

Screw-type compressor

In a screw-type compressor or Lysholm compressor which has intermeshing convex and concave rotors (1, 2) which are rotatably accommodated in a housing (3) in order to compress gas flowing in the axial direction, shafts (5, 7) on the outlet side are supported by bearings (16, 18) on the outlet side in such a way that the shafts on the outlet side are fixed in the thrust direction, whereas shafts (6, 8) of the rotors on the intake side are supported by bearings (17, 19) on the intake side in such a way that the shafts on the intake side can move in the thrust direction. Proper fixing or selection of the intermediate spaces (C1, C2, C3, C4) of the rotors is thereby considerably facilitated. ...

Scroll compressor

A scroll compressor is provided that may include a fixed scroll having a fixed wrap, an orbiting scroll engaged with the fixed wrap to define a compression chamber, a rotation shaft having a shaft portion eccentrically located with respect to the orbiting scroll, a pin portion located at an end of the shaft portion and having a diameter smaller than a diameter of the shaft portion, and a bearing located at an end of the pin portion, and a drive that drives the rotation shaft. The pin portion may be inserted through one of the fixed scroll or the orbiting scroll, and the orbiting scroll may be rotatably coupled to the bearing.

Fluid Energy Transfer Device

A rotary chambered fluid energy-transfer device includes a housing with a central portion having a bore formed therein and an end plate forming an arcuate inlet passage, with a radial height and a circumferential extent. The device also includes an outer rotor rotatable in the central portion bore with a female gear profile formed in a radial portion defining a plurality of roots and an inner rotor with a male gear profile defining a plurality of lobes in operative engagement with the outer rotor. A minimum radial distance between an outer rotor root and a corresponding inner rotor lobe define a duct end face proximate the end plate, wherein the duct end face has a radial height substantially equivalent to the inlet passage radial height at a leading edge of the inlet passage.

Shaft rotating double-stator multi-speed motor with curves of constant width

The present invention discloses a shaft rotating constant-width curve double-stator multi-speed motor, comprising a rotor ( 5 ), an inner stator ( 19 ), an outer stator ( 3 ), sets of sliders ( 22 ) mounted on the rotor, a left end cover ( 6 ) and a right end cover ( 1 ), a curve of an external surface of a front portion of the inner stator ( 19 ) and a curve of an internal surface of the outer stator ( 3 ) are two similar curves which are smooth and closed, wherein oil distributing ports in outer stator ( 20 ) are opened on the outer stator ( 3 ) in the number of 2×n (n is the number of actions), oil distributing ports in inner stator ( 24 ) are opened on the external surface of the front portion of the inner stator ( 19 ), and the inner stator ( 19 ) is mounted in the rotor ( 5 ). The multi-speed motor of the present invention works stably and has a small volume, a light weight, a high efficiency and a large specific power. According to the present invention, a plurality of hydraulic motors of different inputs set in one shell, so as to output different speeds and torques when the motors have different inputs or outputs.

Electric pump unit

A pump body is formed of a pump housing and a pump plate provided in front of the pump housing. A motor housing is fixed to a rear end of the pump housing, and accommodates a pump driving electric motor. A bearing device that supports a motor shaft includes a first bearing that is arranged in a closed-end hole formed in a rear face of the pump plate and supporting a front end portion of the motor shaft, and a second bearing that is arranged radially inward of a cylindrical bearing support portion formed in the pump housing and extending inside the motor housing and that supports a middle portion of the motor shaft. A pump rotor is arranged between the first bearing and the second bearing.

Bearing Release, In Particular For A Steering Column

The invention relates to a bearing device which comprises an internal ring and an external ring, which are each provided with a bearing path for rolling elements which are arranged between the rings in contact with the bearing paths. At least one of the two rings comprises a casing which is provided with an axial portion, two radial portions at the ends thereof. This device also comprises two bearing elements which are mounted in the casing and which each form a bearing path, and at least one pretensioning element which is produced from resilient material and which is arranged between one of the radial portions of the casing and one of the bearing elements. A pretensioning element is mounted in the casing of a first ring in frictional contact with the second ring in order to apply a resistant torque during the rotation of one ring relative to the other. 1. A bearing device comprising:an internal ring provided with an internal ring bearing path;an external ring provided with an external ring bearing path;rolling elements, wherein the rolling elements are arranged between the internal ring and the external ring and in contact with the internal ring bearing path and the external ring bearing path; a casing provided with an axial portion and two radial portions at the ends thereof,', 'two bearing elements mounted in the casing, each bearing element forming at least one of the internal ring bearing path and the internal ring bearing path, and', 'at least one pretensioning element which is produced from resilient material and which is arranged between one of the radial portions of the casing and one of the two bearing elements,, 'at least one of the internal ring and the external ring comprisingwherein one of said at least one pretensioning elements is mounted in the casing of one of the internal ring and the external ring in frictional contact with the other one of the internal ring and the external ring in order to apply a resistant torque during the rotation of the ...

GEAR PUMP BEARINGS

A gear pump bearing can include a body sized and shaped to occupy a portion of a pump housing cavity such that a clearance is formed between the body and a pump housing. The gear pump bearing can also include at least one clearance consuming feature extending from an outer surface of the body configured to reduce motion of the body within the pump housing cavity. 1. A gear pump bearing , comprising:a body sized and shaped to occupy a portion of a pump housing cavity such that a clearance is formed between the body and a pump housing; andat least one clearance consuming feature extending from an outer surface of the body configured to reduce motion of the body within the pump housing cavity.2. The bearing of claim 1 , wherein the at least one clearance consuming feature is at least one pin disposed on or within the body.3. The bearing of claim 2 , wherein the at least one pin includes a plurality of pins disposed at different circumferential positions on the body.4. The bearing of claim 3 , wherein the plurality of pins includes two pins.5. The bearing of claim 4 , wherein the plurality of pins are inserted into a respective pin hole defined in the body.6. The bearing of claim 5 , wherein the plurality of pins are epoxied to the body.7. The bearing of claim 4 , wherein the pins are disposed about 45 degrees apart.8. The bearing of claim 1 , wherein the at least one clearance consuming feature is a raised outer diameter extension.9. The bearing of claim 1 , further comprising an inner aperture defined in the body for receiving a shaft of a gear.10. The bearing of claim 1 , wherein the bearing includes a flat configured to mate with a flat of mating gear bearing within the pump housing cavity.11. The bearing of claim 1 , wherein the outer surface is partially circular having a first radius claim 1 , wherein pump housing cavity is partially circular having second radius claim 1 , wherein first radius is smaller than second radius.12. A gear pump claim 1 , comprising:a ...

Variable Capacity Screw Compressor and Method

A variable capacity screw compressor comprises a suction port, at least two screw rotors and a discharge port being configured in relation to a selected rotational speed that operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity. A motor is configured to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity. A variable speed drive receives a command signal from a controller and generates a control signal that drives the motor at the selected rotational speed. 1. A variable capacity screw compressor comprising:a rotor housing comprising a suction port,a working chamber,a discharge port, andat least two screw rotors that include a female screw rotor and a male screw rotor being positioned within the working chamber for cooperatively compressing a fluid;wherein the suction port, the at least two screw rotors and the discharge port being configured in relation to a selected rotational speed;the selected rotational speed operates at least one screw rotor at an optimum peripheral velocity that is independent of a peripheral velocity of the at least one screw rotor at a synchronous motor rotational speed for a rated screw compressor capacity;a motor operable to drive the at least one screw rotor at a rotational speed at a full-load capacity that is substantially greater than the synchronous motor rotational speed at the rated screw compressor capacity; anda variable speed drive to receive a command signal from a controller and to generate a control signal that drives the motor at the rotational speed.229-. (canceled)30. The variable capacity screw compressor of claim 1 , further comprising:one or more first bearings positioned close to the discharge port;one or more ...

Bearing Housing and Assembly of a Screw Compressor

An improved bearing housing of a rotary screw compressor is described. The bearing housing is generally shorter than a convention bearing housing. The bearing housing can be configured to enclose and support radial bearings of the screw compressor. The bearing housing can be configured not to enclose axial bearings of the screw compressor in an axial direction. 1. A bearing housing of a screw compressor , comprising:a cavity defined by the bearing housing, wherein a depth of the cavity is configured to be no larger than a length of a radial bearing of a screw compressor.2. The bearing housing of claim 1 , wherein the bearing housing is configured to support a radial bearing of the screw compressor.3. The bearing housing of claim 1 , wherein the bearing housing is configured to be positioned to cover an axial end of the screw compressor.4. A screw compressor claim 1 , comprising:a rotor including a shaft;one or more radial bearings attached to the shaft;one or more axial bearings attached to the shaft; anda bearing housing, wherein the bearing housing defines a cavity that is configured to support the one or more radial bearings but not the one or more axial bearings.5. The screw compressor of claim 4 , wherein the cavity has a depth and the one or more radial bearings have a length claim 4 , and the depth of the cavity is not larger than the length of the one or more radial bearings.6. The screw compressor of claim 4 , further comprising:a bearing cover, the bearing cover configured to be attached to the bearing housing; wherein the bearing cover is configured to have a clearance with the one or more axial bearings.7. The screw compressor of claim 4 , further comprising:a bearing cover, the bearing cover defined a space; wherein the space defined by the bearing cover is configured to enclose the one or more axial bearings.8. The screw compressor of claim 4 , wherein the one or more radial bearings are positioned closer to the rotor than the one or more axial ...

LOW CREEP BEARING AND METHOD FOR INSTALLING IN SUPERCHARGER

A supercharger assembly comprises a housing, a shaft bore in the housing, a shaft extending into the shaft bore, wherein the shaft comprises an axis, and a bearing assembly located between the shaft bore and the shaft. The bearing assembly comprises an outer ring. The outer ring comprises an outer face. A grease is located between the outer face of the outer ring and the shaft bore. The grease has a viscosity greater than International Standards Organization Viscosity Grade 100. 1. A supercharger assembly comprising:a housing;a shaft bore in the housing;a shaft extending into the shaft bore, wherein the shaft comprises an axis; anda bearing assembly located between the shaft bore and the shaft, the bearing assembly comprising:an outer ring comprising an outer face;a grease located between the outer face of the outer ring and the shaft bore, wherein the grease has a viscosity greater than International Standards Organization Viscosity Grade 100.2. The supercharger assembly of claim 1 , further comprising a first o-ring and a second o-ring around the outer ring claim 1 , wherein the grease is located between the first o-ring and the second o-ring.3. (canceled)4. The supercharger assembly of claim 2 , further comprising a radial spring claim 2 , wherein the radial spring abuts either the first o-ring or the second o-ring.5. The supercharger assembly of claim 2 , wherein the grease is the only fluid located between the first o-ring and the second o-ring.6. The supercharger assembly of claim 2 , further comprising a bore lubricant located between the outer face of the outer ring and the shaft bore claim 2 , wherein the bore lubricant has a viscosity lower than the viscosity of the grease.7. (canceled)8. The supercharger assembly of claim 1 , further comprising:rolling elements between the outer ring and the shaft; anda bearing lubricant lubricating the rollers,wherein the bearing lubricant comprises a viscosity less than International Standards Organization Viscosity ...

DOUBLE-ENDED SCROLL COMPRESSOR LUBRICATION OF ONE ORBITING SCROLL BEARING VIA CRANKSHAFT OIL GALLERY FROM ANOTHER ORBITING SCROLL BEARING

A scroll compressor orbiting scroll bearing lubrication system includes a scroll compressor crankshaft having a lubricating fluid gallery extending therethrough between a first stage orbiting scroll and a second stage orbiting scroll. The first stage employs an orbiting scroll radial bearing and an orbiting scroll hydrodynamic thrust bearing, while the second stage employs an orbiting scroll radial bearing and an orbiting scroll hydrostatic thrust bearing. Lubricating fluid is supplied to the second stage orbiting scroll radial bearing via the lubricating fluid gallery. 1. A scroll compressor orbiting scroll bearing lubrication system , comprising:a lubricating fluid sump storing a lubricating fluid pressurized higher than the scroll compressor suction pressure; a first eccentric drive pin extending from a first end of the crankshaft, wherein the first drive pin is rotatably disposed at least partially within a first radial orbital bearing and configured to engage a first orbiting scroll comprising a baseplate and a spiral wrap element extending from the baseplate, and further comprising one or more oil passages in the baseplate;', 'a second eccentric drive pin extending from a second end of the crankshaft, wherein the second drive pin is rotatably disposed at least partially within a second radial orbital bearing and configured to engage a second orbiting scroll;, 'a compressor crankshaft comprisingan orbiting scroll hydrodynamic thrust bearing associated with the first orbiting scroll,wherein the first radial orbital bearing and the orbiting scroll hydrodynamic thrust bearing are configured to receive lubricating fluid from the lubricating fluid sump via the one or more oil passages in the first orbiting scroll baseplate;2. The scroll compressor orbiting scroll bearing lubrication system according to claim 1 , further comprising a bearing housing containing one or more oil supply passages claim 1 , wherein the first radial orbital bearing and orbiting scroll ...

ORBITING CRANKSHAFT DRIVE PIN AND ASSOCIATED DRIVE PIN SLEEVE GEOMETRY

A compressor crankshaft assembly includes a crankshaft and an eccentric drive pin extending from one end of the crankshaft. The shape of the drive pin viewed into the exposed end of the drive pin is defined by the intersection of a first cylinder that is coaxial with the axis of a substantially cylindrical orbital bearing journaled and installed to receive the eccentric drive pin and a second cylinder that is coaxial with the axis of a substantially cylindrical main bearing journaled and installed to rotatably receive the crankshaft, such that the area defined by the intersecting portion is less than the area defined by either cylinder. 1. A compressor crankshaft assembly comprising:a substantially cylindrical main bearing;a crankshaft rotatably disposed at least partially within the substantially cylindrical main bearing;a substantially cylindrical orbital bearing; andan eccentric drive pin extending from one end of the crankshaft and rotatably disposed at least partially within the substantially cylindrical orbital bearing, wherein the shape of the drive pin viewed into the exposed end of the drive pin is defined by the intersection of a cylinder that is coaxial with the axis of the orbital bearing and a cylinder that is coaxial with the axis of the main bearing such that the area defined by the intersecting portion is less than the area defined by either cylinder.2. The compressor crankshaft assembly according to claim 1 , further comprising an eccentric drive pin sleeve pressed claim 1 , or shrunk around claim 1 , or fixedly attached to the eccentric drive pin.3. The compressor crankshaft assembly according to claim 1 , further comprising an eccentric drive pin sleeve between the orbital bearing and the eccentric drive pin claim 1 , wherein the drive pin sleeve includes an inside surface shaped so as to receive the eccentric drive pin claim 1 , the inside surface being defined by the intersection of the cylinder that is coaxial with the axis of the orbital ...

STRUCTURE FOR STABILIZING AN ORBITING SCROLL IN A SCROLL COMPRESSOR

A scroll compressor includes one or more stage of compression disposed within a compressor housing. One or more of the stages includes a stationary scroll member including a base and a generally spiral wrap extending from the base of the stationary scroll member. One or more of the stages further includes an orbiting, scroll member including a substantially circular base and a substantially spiral wrap extending from the base of the orbiting scroll member. A coupling is disposed between the first scroll member base and the second scroll member base and in surrounding relationship to the first and second scroll member spiral wraps. At least one stabilizing pad is disposed between the first scroll member base and the second scroll member base and in axial thrust force relationship with the coupling to at least partially prevent tipping of the second scroll member. 1. A scroll compressor , comprising:a compressor housing; a first, stationary, scroll member comprising a base and a generally spiral wrap extending from the base of the first, stationary, scroll member; and', 'a second, orbiting, scroll member comprising a substantially circular base and a generally spiral wrap extending from the base of the second, orbiting scroll member;, 'an output stage of compression disposed within the compressor housing, the output stage comprisinga coupling disposed between the first scroll member base and the second scroll member base and in surrounding relationship to the first and second scroll member spiral wraps;the scroll compressor further comprising at least one of:one or more stabilizing pads disposed on the base of the first scroll member and configured to at least partially stabilize an axial thrust force between the coupling and the base of the first scroll member to at least partially prevent tipping of the second scroll member;one or more stabilizing pads disposed on the base of the second scroll member and configured to at least partially stabilize an axial thrust ...

Motor-operated compressor

A motor-operated compressor according to the present disclosure includes a first scroll performing an orbiting motion, a second scroll coupled to the first scroll to form a compression chamber with the first scroll and radially supporting a rotation shaft, a main housing coupled to the second scroll outside the second scroll, and coupled with a driving motor to form a motor chamber, the main housing including an opened end at one side of the motor chamber, a frame portion formed at another side of the motor chamber to axially support the second scroll, and a first bearing portion formed through the frame portion so that the rotation shaft is inserted therethrough to be radially supported, and an inverter housing coupled to the opened end of the main housing to seal the motor chamber, whereby a main frame can be easily formed and a compressor fabrication process can be simplified.

Hydrodynamic gear assembly

A gear assembly includes a first gear having a first pitch diameter and a second gear having a second pitch diameter different than the first pitch diameter. The first and second gears are located in a housing bore having a cusp line between first and second sections of the housing bore corresponding to the first and second gears. A first gear bearing is located in the first section of the housing bore and has a first flat side. A second gear bearing is located in the second section of the housing bore and has a second flat side. The second flat side is configured to press against the first flat side along the cusp line of the gear housing based on a pressurized fluid being provided to the housing bore.

A scroll compressor

The scroll compressor ( 1 ) includes an orbiting scroll arrangement ( 7 ), and a drive shaft ( 18 ) configured to drive the orbiting scroll arrangement ( 7 ) in an orbital movement, the drive shaft ( 18 ) including a lubrication channel ( 32 ) and a first lubrication hole ( 35 ) fluidly connected to the lubrication channel ( 32 ) and emerging in an outer wall of the drive shaft ( 18 ). The scroll compressor ( 1 ) further includes a first and a second bearings ( 38, 39 ) axially offset along a rotation axis of the drive shaft ( 18 ) and each configured to engage the drive shaft ( 18 ). The first and second bearings ( 38, 39 ) and the drive shaft ( 18 ) partially define a first annular gap ( 44 ) in which emerges the first lubrication hole ( 35 ). The first bearing ( 38 ) and the drive shaft ( 18 ) define a first oil recess fluidly connected to the first annular gap ( 44 ), and the second bearing ( 39 ) and the drive shaft ( 18 ) define a second oil recess fluidly connected to the first annular gap ( 44 ).

Submersible Pump Assembly For Use In A Borehole

A submersible pump assembly for use in a borehole, including a screw pump and/or an eccentric screw pump with a longitudinal axis. The submersible assembly further includes a drive and a bearing arrangement for taking up and diverting the axial and/or radial forces arising during the operation of the screw pump andor eccentric screw pump. The drive is disposed, via a first coupling rod, at one end of the screw pump and/or eccentric screw pump and the bearing arrangement is assigned, via a second coupling rod, to the opposite end of the screw pump and/or eccentric screw pump along the longitudinal axis. 1. A submersible pump assembly for use in a borehole , Comprising:a screw pump and/or an eccentric screw pump with a longitudinal axis,a drive, anda bearing arrangement for taking up and diverting axial and/or radial forces occurring during operation of the screw pump and/or eccentric screw pump,wherein the drive is disposed, via a first coupling rod, at one end of the screw pump and/or eccentric screw pump along the longitudinal axis and that the bearing arrangement is assigned, via a second coupling rod, to the opposite end of the screw pump and/or eccentric screw pump along the longitudinal axis.2. The submersible pump assembly according to claim 1 , wherein the submersible pump assembly is disposed in the borehole in such a way that the drive is disposed in the borehole beneath the screw pump and/or eccentric screw pump and that the bearing arrangement of the submersible pump assembly is disposed inside the borehole above the screw pump and/or eccentric screw pump.3. The submersible pump assembly according to claim 1 , wherein the bearing arrangement is an adjusted support bearing in an O-shape.4. The submersible pump assembly according to claim 1 , wherein the bearing arrangement is a component of a bearing unit.5. The submersible pump assembly according to claim 4 , wherein the screw pump and/or eccentric screw pump comprises a rotor and a stator claim 4 , ...

Active clearance management in screw compressor

A compressor includes a housing defining a working chamber. The housing further includes a bore and an endplate disposed toward a discharge end. The compressor further includes a rotor having helical threads, the rotor being configured to be housed in the bore, a rotor clearance, a controllable bearing supporting the rotor, and a controller configured to control the controllable bearing such that the controllable bearing moves the rotor in a manner to reduce and/or enlarge the rotor clearance.

Pressure compensated external gear machine

Devices and systems relating to external gear machines that comprise microsurface shaping on the lateral surfaces of the gear teeth and/or bushing surfaces are provided. Such microsurface shaping may comprise a flat step to linear wedge profile, a flat step to flat step profile, or solely a linear wedge profile. The incorporation of microsurface shaping on the gear teeth and/or bushing plates contributes to improving the lubrication performance within the external gear machine and provides significant benefits, including the improvement of operating efficiency, life, and reliability of the system components. Methods for manufacturing the gear teeth and related bushings are also provided, the methods configured to optimize the overall axial balance within the system.

SCROLL-TYPE COMPRESSOR

The orbiting base plate has a compression side surface and a back pressure chamber side surface. The gas passage has an opening in the compression side surface of the orbiting base plate between portions of the orbiting spiral wall that face each other, and the gas passage has an opening in the back pressure side surface at a position that faces an area on a radially inner side than the outer circumference of the bearing so as to feed the refrigerant gas in the compression chamber to the back pressure chamber 1. A scroll-type compressor comprising:a rotation shaft;an eccentric shaft fixed to the rotation shaft, the eccentric shaft being offset from a rotation center of the rotation shaft;a bush fitted onto the eccentric shaft;a bearing disposed rotatably relative to the bush;an orbiting scroll supported by the bearing;a fixed scroll disposed to oppose the orbiting scroll; anda partition wall supporting the rotation shaft and forming a back pressure chamber together with the orbiting scroll, wherein pressure in the back pressure chamber presses the orbiting scroll toward the fixed scroll,whereinthe orbiting scroll comprises an orbiting base plate and an orbiting spiral wall projecting from the orbiting base plate toward the fixed scroll,the fixed scroll comprises a fixed base plate facing the orbiting base plate, and a fixed spiral wall projecting from the fixed base plate toward the orbiting scroll,the orbiting wall, the fixed wall, the orbiting base plate and the fixed base plate form a compression chamber,refrigerant gas in the compression chamber is compressed in accordance with orbiting motion of the orbiting scroll caused by rotation of the rotation shaft through revolution of the eccentric shaft,a gas passage is formed in the orbiting base plate so as to communicate the compression chamber and the back pressure chamber,the orbiting base plate has a compression side surface and a back pressure chamber side surface, wherein the gas passage has an opening in the ...

SUPERCHARGER

A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation. 1. A supercharger , comprising:a rotor housing defining a pair of cylindrical chambers;a driving shaft bearing to support a driving rotor shaft for rotation in the rotor housing;a driven shaft bearing to support a driven rotor shaft for rotation in the rotor housing;an oil sump housing to enclose a timing gear end of the rotor housing;wherein the oil sump housing, the rotor housing, a driving shaft seal, and a driven shaft seal define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear, and a driven timing gear;wherein the oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientations;a first oil slinger connected to the driving rotor shaft or the driving timing gear and, when the driving rotor shaft is in the vertical orientation, disposed below the driving timing gear for rotation therewith; and gravity urges the oil to flow through the driving shaft bearing for lubrication thereof; and', 'the first oil slinger urges the oil to flow against gravity through the first port to a first chamber above the driving shaft ...

COMPRESSOR WITH IMPROVED VALVE ASSEMBLY

A thermal-valve assembly for a compressor including a partition plate having a first bore formed therethrough is provided. The thermal-valve assembly may include a body having a wall extending from and surrounding a bottom wall. The bottom wall may include a first surface defining a valve seat, a second surface formed on an opposite side of the bottom wall than the first surface and facing the partition plate, and a second bore extending through the bottom wall between the first surface and the second surface and aligned with the first bore. A projection may extend from the second surface and may be attached to the partition plate. A valve element may be received by the body and may be supported on the valve seat between an open state permitting communication through the second bore and a closed state preventing communication through the second bore. 1. A thermal-valve assembly for a compressor including a partition plate having a first bore formed therethrough , the thermal-valve assembly comprising:a body including a wall extending from and surrounding a bottom wall, said bottom wall including a first surface defining a valve seat, a second surface formed on an opposite side of said bottom wall than said first surface and facing the partition plate, and a second bore extending through said bottom wall between said first surface and said second surface and aligned with the first bore;a projection extending from said second surface and attached to the partition plate; anda valve element received by said body and supported on said valve seat between an open state permitting communication through said second bore and a closed state preventing communication through said second bore.2. The thermal-valve assembly of claim 1 , wherein said valve element is a bimetallic disc.3. The thermal-valve assembly of claim 1 , wherein said valve seat is spaced apart and separated from the first bore by said bottom wall.4. The thermal-valve assembly of claim 1 , wherein said valve ...

COMPRESSOR

In order to adapt a balance piston unit of a compressor to a high speed, and to extend a service life of the compressor, a screw compressor according to the present invention includes a screw rotor including a rotor shaft, a radial bearing, a thrust plate, a balance mechanism, which is a slide bearing, a lubrication oil supply flow passage for supplying a lubrication oil, and a working fluid supply flow passage for supplying a working fluid for pressing the balance mechanism toward the thrust plate so that a reverse thrust load acts on the thrust plate. 2. The compressor according to claim 1 , comprising a control unit that adjusts the pressure of the working fluid depending on a magnitude of the thrust load claim 1 , thereby controlling a force to press the slide bearing by the balance piston unit.3. The compressor according to claim 2 , comprising:a lubricant supply flow passage that supplies a gap between the thrust plate and the slide bearing with the lubricant,wherein the control unit controls at least one of a flow rate and a pressure of the lubricant in the lubricant supply flow passage depending on the magnitude of the thrust load.4. The compressor according to claim 3 , wherein the control unit decreases the pressure of the working fluid claim 3 , and at least one of the flow rate and the pressure of the lubricant in the lubricant supply flow passage upon at least a startup.5. The compressor according to claim 1 , wherein:the slide bearing includes a pad opposing the thrust plate; andthe pad is configured so as to tilt following the thrust plate.6. The compressor according to claim 1 , wherein the radial bearing is a slide bearing.7. The compressor according to claim 2 , comprising:a discharge pressure sensor that measures a discharge pressure of the compressor; anda suction pressure sensor that measures a suction pressure of the compressor,wherein the control unit uses a difference between a measurement value by the discharge pressure sensor and a ...

SEALING SLEEVE FOR GEARED SHAFT OF GEARMOTOR ASSEMBLY

A motor includes a shaft rotatable about an axis, an engaged component engaged by the shaft, a sleeve fixed to the shaft to rotate therewith, and a seal at least partly circumscribing the shaft. The shaft includes an engagement region presenting a substantially variable outer shaft surface that at least in part engages the engaged component. The sleeve includes a first section that at least partly circumscribes and engages the engagement region of the shaft. The first section of the sleeve presents an outer seal-engaging surface and an outer bearing-engaging surface. The seal and the bearing each at least partly circumscribe the engagement region of the shaft and the first section of the sleeve to engage the seal-engaging surface and the bearing-engaging surfaces, respectively, of the sleeve. 1. A motor comprising:a shaft rotatable about an axis;an engaged component engaged by the shaft;a sleeve fixed to the shaft to rotate therewith; anda seal at least partly circumscribing the shaft,said shaft including an engagement region presenting a substantially variable outer shaft surface that at least in part engages the engaged component,said sleeve including a first section that at least partly circumscribes and engages the engagement region of the shaft,said first section of the sleeve presenting an outer seal-engaging surface,said seal at least partly circumscribing the engagement region of the shaft and the first section of the sleeve to sealingly engage the seal-engaging surface of the sleeve.2. The motor of claim 1 ,said variable outer shaft surface comprising a plurality of teeth.3. The motor of claim 2 ,said engaged component comprising a gear,said shaft rotatably engaging said gear.4. The motor of claim 1 ,said shaft including a second region adjacent the engagement region,said sleeve including a second section that at least partly circumscribes the second region.5. The motor of claim 4 ,said second region of the shaft and said engagement region of the shaft ...

INTERNAL BEARING PLATE FOR GEARMOTOR ASSEMBLY

A motor includes a housing, a shaft, a bearing, a bearing plate, and a seal. The housing includes first and second housing components directly engaging one another along a housing interface. The housing at least in part defines a sealed chamber. The shaft is at least in part received in the chamber. The bearing rotatably supports the shaft. The bearing plate defines a bearing housing at least substantially receiving the bearing. The housing circumscribes the bearing plate such that the bearing plate is enclosed within the housing. The bearing plate is fixed to a supporting one of the housing components and directly engages the supporting one of the housing components along a bearing plate interface. The seal is disposed along at least one of the interfaces. 1. A motor comprising:a housing including first and second housing components directly engaging one another along a housing interface,said housing at least in part defining a sealed chamber;a shaft at least in part received in the chamber;a bearing rotatably supporting the shaft;a bearing plate defining a bearing housing at least substantially receiving the bearing,said housing circumscribing the bearing plate such that the bearing plate is enclosed within the housing,said bearing plate being fixed to a supporting one of said housing components and directly engaging said supporting one of the housing components along a bearing plate interface; anda seal disposed along at least one of said interfaces.2. The motor of claim 1 ,said seal being disposed along the housing interface.3. The motor of claim 1 ,said housing interface and said bearing plate interface being at least substantially co-planar.4. The motor of claim 1 ,said first housing component defining an at least substantially flat first engagement face,said second housing component defining an at least substantially flat second engagement face abutting the first engagement face along the housing interface,said second housing component being the supporting ...

POSITIVE DISPLACEMENT PUMP SHAFT BEARING ASSEMBLY

The application relates to a positive displacement pump shaft bearing assembly that comprises a shaft having a shaft lodging and a shaft rotational axis. The assembly further comprises a housing having a housing lodging and one rolling element that is located between said lodgings. The rolling element comprises a rolling element centre point that coincides with the shaft rotational axis. 110202510030354025354090100. A positive displacement pump shaft bearing assembly () , comprising a shaft () having a shaft lodging () and a shaft rotational axis () , a housing () having a housing lodging () and one rolling element () located between said lodgings ( , ) , wherein the rolling element () comprises a rolling element center point () that coincides with the shaft rotational axis ().2102535505152. The shaft bearing assembly () according to claim 1 , wherein at least one of the shaft lodging () or the housing lodging () has one lodging form selected among: a conical-shape () claim 1 , a sphere-shape () claim 1 , or a sphere-recessed-shape ().310402535. The shaft bearing assembly () according to claim 1 , wherein the rolling element () has point or line contact with the shaft lodging () or the housing lodging ().4102535100. The shaft bearing assembly () according to claim 1 , wherein the shaft lodging () and/or the housing lodging () is adjustable in position parallel to the shaft rotational axis ().51025352530. The shaft bearing assembly () according to claim 1 , wherein the shaft lodging () and/or the housing lodging () is threadedly connected with the shaft () or the housing ().610602535406025352030. The shaft bearing assembly () according to claim 1 , wherein at least one distance element () is located between the shaft lodging () or the housing lodging () and the rolling element () claim 1 , or at least one distance element () is located between the shaft lodging () and/or the housing lodging () and the shaft () and/or the housing ().710702535. The shaft bearing ...

SCROLL COMPRESSOR

A scroll compressor is provided which includes: a revolving scroll, a fixed scroll, an autorotation preventing mechanism, a frame, a crank shaft provided with an eccentric pin portion which is eccentric with respect to an axis, the crank shaft being provided with a flange portion at a lower portion of the eccentric pin portion, the flange portion being larger than the diameter of the eccentric pin portion, a balance weight mounted on the flange portion, a sealing member performing sealing between the revolving scroll and the flange portion, and a thrust bearing arranged between the frame and the flange portion. The scroll compressor reduces the amount of oil flowing into a back pressure chamber, thereby improving the performance of the scroll compressor. 1. A scroll compressor , comprising:a crank shaft including an eccentric pin portion eccentric from an axial center;a revolving scroll having a scroll shape on a bedplate and connected to the eccentric pin portion;a fixed scroll having a scroll shape that engages with the scroll shape of the revolving scroll;an autorotation preventing mechanism that prevents the revolving scroll from autorotating;a frame that houses the revolving scroll and the autorotation preventing mechanism, rotatably supports the crank shaft with a bearing, and fixes the fixed scroll, wherein the crank shaft includes a flange portion having a larger diameter than a diameter of the eccentric pin portion and arranged at a lower portion of the eccentric pin portion;a balance weight that is mounted on the flange portion to cancel imbalance caused by rotational movement of the eccentric pin portion and revolution movement of the revolving scroll;a sealing member that provides sealing between the revolving scroll and the flange portion; anda thrust bearing provided between the frame and the flange portion.2. The scroll compressor according to claim 1 ,wherein a space adjacent to the flange portion is partitioned, by the sealing member and the thrust ...

Screw Spindle Pump, Fuel Pump Assembly, and Fuel Pump Unit

A screw-spindle pump comprising: first and second screw spindles forming running and drive spindles, respectively, and a pump housing configured to receive the first and second screw spindles. The first and second screw spindles form, with at least the pump housing, delivery chambers, moving from a suction side to a pressure side of the pump as a consequence due to rotation of the screw spindles. The pump housing has an elongate insert, as an abutment for the first and second screw spindles and against which the first and second screw spindles are supported, the elongate insert having a first portion forming a first abutment for the second screw spindle and a second portion forming a second abutment for the first screw spindle. The elongate insert is clamped into a receptacle of the pump housing using a cross-sectional dimension of the elongate insert. 115-. (canceled)16. A screw-spindle pump comprising:{'b': 14', '16', '16', '14', '16, 'a first screw spindle () and a second screw spindle (), wherein the second screw spindle () is a drive spindle and the first screw spindle () is a running spindle that runs oppositely with respect to the second screw spindle (), and'}{'b': 10', '14', '16, 'a pump housing () configured to receive the first and second screw spindles (, ),'}{'b': 14', '16', '10', '18', '20', '22', '14', '16, 'wherein the first and second screw spindles (, ) form, together with at least the pump housing (), delivery chambers (), which move from a suction side () of the pump to a pressure side () of the pump as a consequence of a rotation of the first and second screw spindles (, ),'}{'b': 10', '8', '14', '16', '14', '16', '8', '16', '14, 'wherein the pump housing () has an elongate insert (), as an abutment for the first and second screw spindles (, ) and against which the first and second screw spindles (, ) are supported, the elongate insert () having a first portion forming a first abutment for the second screw spindle () and a second portion forming ...

SCROLL COMPRESSOR

In a motor-driven scroll compressor of the present invention, a double-sided sliding bearing is provided a space between a drive bush and a boss portion. The double-sided sliding bearing has a cylindrical outer sliding member that is provided in the boss portion, and a cylindrical inner sliding member that is provided in the bush portion. In an outer boundary zone of an inner circumferential surface of the boss portion and an outer circumferential surface of the outer sliding member, and an inner boundary zone of an inner circumferential surface of the inner sliding member and an outer circumferential surface of the bush portion, relative rotation is generated. The outer sliding member and the inner sliding member have different lengths in an axial direction, and thereby form a first and a second steps at both ends in the axial direction. 1. A scroll compressor comprising a housing , a fixed scroll that is fixed to the housing , a movable scroll that forms a compression chamber between the movable scroll and the fixed scroll , a boss portion that is formed at the movable scroll , a drive shaft axially supported by the housing rotatably around a drive shaft axis , an eccentric shaft portion that is eccentric from the drive shaft axis and is rotatable integrally with the drive shaft , and a drive bush that is fitted onto the eccentric shaft portion and is fitted into the boss portion , and causes the movable scroll to orbit with respect to the fixed scroll ,wherein a motor mechanism that drives the drive shaft is provided in the housing,the movable scroll has a movable base plate in which the boss portion is formed in a center, and a movable spiral wall that has a spiral shape and extends in a direction opposite to the boss portion from the movable base plate,a bearing is provided in at least one of a space between the drive bush and the boss portion, and a space between one end portion at the drive bush side in the drive shaft and the housing,the bearing has a ...

COMPRESSOR HAVING SOUND ISOLATION FEATURE

Scroll compressor designs are provided to minimize vibration, sound, and noise transmission. The scroll compressor has a bearing housing, and orbiting and non-orbiting scroll members. The non-orbiting scroll member has a radially extending flanged portion with at least one aperture substantially aligned with the axially extending bore. At least one fastener is disposed within the aperture and the bore. A sound isolation member contacts at least one of the non-orbiting scroll member, the fastener, or the bearing housing, to reduce or eliminate noise transmission. The sound isolation member may be formed of a polymeric composite having an acoustic impedance value greater than the surrounding materials. The sound isolation member may be an annular washer, an O-ring, or a biasing member, by way of non-limiting example. In other variations, fluid passages are provided within the fastener and/or bearing housing to facilitate entry of lubricant oil to further dampen sound and noise. 1. A scroll compressor comprising:a bearing housing including at least one radially extending arm having an axially extending bore;an orbiting scroll member including a first end plate and a first scroll wrap extending from the first end plate;a non-orbiting scroll member having a first acoustic impedance value, and including a second end plate, a second scroll wrap extending from the second end plate and meshingly engaged with the first scroll wrap, and a radially extending flanged portion comprising at least one axially extending aperture substantially aligned with the axially extending bore;at least one fastener disposed within the at least one axially extending aperture and the axially extending bore; and{'sup': '−3', 'a sound isolation member disposed between at least a portion of the fastener and at least a portion of the non-orbiting scroll member, wherein the sound isolation member comprises a composite material comprising a polymer and a plurality of particles, the composite material ...

Vane motor

Disclosed is a vane motor including: a casing including a casing including an inlet port and an outlet port, through which a pressurized fluid comes in or out; a rotor being installed in the casing, turning around a rotational shaft by the pressurized fluid and including a rotor body which has a substantially cylindrical shape and an axis coinciding with an axis of the rotational shaft and a plurality of vanes which is installed in grooves formed on an outer circumferential surface of the rotor body and has a portion protruding from the groove and the portion having a length varied in accordance with a rotational phase, and an inner liner of a cylindrical shape which is installed in the casing and receives the rotor therein, in which a distal end of the vane comes into contact with an inner wall surface of the inner liner while the pressurized fluid is retained therein until the pressurized fluid flowing through the inlet port of the casing is discharged from the outlet port of the casing, and an imaginary rotational axis of the inner liner is spaced apart from a rotational axis of the rotational shaft in a parallel state, but is able to rotate together with the rotor when the rotor turns.According to the present invention, when the rotor turns, the distal ends of the vanes contact against the inner wall surface of the casing, so that the inner wall surface of the casing and the vanes are worn out, to increase a frequency of replacement and repair and since the energy consumed by the abrasion is decreased and is used to generate the rotational force, the energy converting efficiency of the vane motor is improved.

SCROLL-TYPE COMPRESSOR

An orbiting scroll is provided with a second communication passage feeding refrigerant gas in a compression chamber toward a back pressure chamber One of or each of an outer circumferential surface of a bush and an inner circumferential surface of a bearing is provided with a first communication passage communicating an upstream side space and a downstream side space The first communication passage is formed so as to avoid an area at which the bush receives a largest load from the plain bearing A part of the refrigerant gas compressed in the compression chamber flows into the downstream side space via the second communication passage the upstream side space and the first communication passage 1. A scroll-type compressor comprising:a rotation shaft;an eccentric shaft fixed to the rotation shaft, the eccentric shaft being offset from a rotation center of the rotation shaft;a cylindrical bush fitted onto the eccentric shaft;a bearing disposed rotatably relative to the bush;an orbiting scroll supported by the bush via the bearing;a fixed scroll disposed to face the orbiting scroll; anda shaft supporting member supporting the rotation shaft and being disposed to face the orbiting scroll at an opposite side from the fixed scroll,whereina compression chamber is formed between the orbiting scroll and the fixed scroll,a back pressure chamber is formed between the orbiting scroll and the shaft supporting member, the orbiting scroll is pressed toward a fixed scroll by pressure of refrigerant gas in the back pressure chamber,refrigerant gas in the compression chamber is compressed in accordance with orbiting motion of the orbiting scroll caused by rotation of the rotation shaft through revolution of the eccentric shaft,the bearing is a plain bearing,the back pressure chamber is divided into an upstream side space and a downstream side space by the bearing,at least one of an outer circumferential surface of the bush and an inner circumferential surface of the bearing comprises a ...

ADJUSTABLE SCROLL PUMP

The invention provides a scroll pump comprising an orbiting scroll and a fixed scroll, wherein the orbital axis of the orbiting scroll is movable in a radial direction relative to the fixed scroll while the orbiting scroll is orbiting about its orbital axis, or wherein the fixed scroll is movable relative to the orbiting scroll in a radial direction while the orbiting scroll is orbiting about its orbital axis. 1. A scroll pump comprising an orbiting scroll and a fixed scroll , wherein the orbital axis of the orbiting scroll is movable in a radial direction relative to the fixed scroll while the orbiting scroll is orbiting about its orbital axis , or wherein fixed scroll is movable relative to the orbiting scroll in a radial direction while the orbiting scroll is orbiting about its orbital axis.2. The scroll pump according to wherein the scroll pump further comprises a first bearing coupled to a drive shaft for driving the orbiting scroll claim 1 , wherein the first bearing is movable with drive shaft in a direction substantially perpendicular to a rotational axis of the drive shaft.3. The scroll pump according to wherein the first bearing is coupled to a housing element of the scroll pump claim 2 , the housing element being movable relative to the fixed scroll while the drive shaft is rotating.4. The scroll pump according to wherein the movable housing element may have its position relative to the fixed scroll selectively fixed.5. The scroll pump according to further comprising a second bearing claim 2 , the second bearing being coupled to the drive shaft and to a bearing carrier which is flexible in an axial direction.6. The scroll pump according to wherein the first bearing is located in a position from a substantially distal end of the drive shaft to substantially adjacent the fixed scroll.7. A scroll chamber for a scroll pump claim 2 , the scroll chamber containing an orbiting scroll and a fixed scroll each comprising an axially extending scroll wall claim 2 , ...

Multistage vane pump

A multi-stage vane-type positive displacement pump used for lifting fluid from oil wells has stages disposed on a common shaft. Each stage has a rotor, a stator, separating vanes, working chambers, a lower cap with inlet ports, and an upper cap with outlet ports. The rotor is in the form of a cam. The stator is formed from two concentric sleeves situated on a base and having an annular gap therebetween. Slots are provided in the inner sleeve and in the base for the movement of the vanes. The vanes are connected to one another by a synchronizing element. The ports are situated opposite the chambers, either side of the vanes. The end faces of the caps of adjacent stages are conjoined to form an annular cavity, which communicates with the gap of the preceding stage. The aim is to increase the reliability of the pump, to simplify the design and to reduce the manufacturing cost thereof while enabling the pumping of fluids with a high content of abrasive particles.

Internal gear pump

An internal gear pump for a hydraulic vehicle brake system includes a bearing formed for a pump shaft in a tubular form. The bearing is integrally formed with a housing of the internal gear pump. The bearing is configured to mount a pinion of the internal gear pump rotatably on the bearing. The internal gear pump also includes a catch configured to connect the pinion to the pump shaft for conjoint rotation.

ROTARY ACTUATOR

A rotary actuator includes an output shaft, a housing, a piston, and a friction reducer. The housing includes an arcuate bore that extends around the output shaft. The piston is coupled to the output shaft and moved in the arcuate bore. Pressure fluid acts to move the piston. The friction reducer is configured to reduce friction between a peripheral surface of the piston and an inner circumferential surface of the housing forming the arcuate bore. 1. A rotary actuator comprising:an output shaft;a housing including at least one arcuate bore that extends around the output shaft;at least one piston coupled to the output shaft and moved in the arcuate bore, wherein pressure fluid acts to move the piston; anda friction reducer configured to reduce friction between a peripheral surface of the piston and an inner circumferential surface of the housing forming the arcuate bore.2. The rotary actuator according to claim 1 , whereinthe friction reducer includes a roller that is in contact with the peripheral surface of the piston, andthe roller rolls when the piston moves.3. The rotary actuator according to claim 2 , wherein the roller is supported by a bearing.4. The rotary actuator according to claim 2 , whereinthe peripheral surface of the piston includes an arcuate outer surface, andthe roller is in linear contact with the arcuate outer surface.5. The rotary actuator according to claim 1 , wherein the friction reducer includes a stopper that reduces force pressing the piston against the inner circumferential surface of the housing.6. The rotary actuator according to claim 5 , whereinthe output shaft includes an arm coupled to the piston,the piston and the arm are coupled in an axial direction of the output shaft by a first coupling portion and a second coupling portion,the first coupling portion and the second coupling portion are separated from each other, andat least one of the first coupling portion and the second coupling portion configures the stopper.7. The rotary ...

IMPELLER-TYPE LIQUID RING COMPRESSOR

An impeller-type liquid ring compressor having a particular bearing configuration. Such a bearing arrangement may completely support the impeller as it rotates, eliminating many of the problems inherent in the prior art designs without changing the general overhung impeller design. This may allow the impeller-type liquid ring compressor to be easily retrofitted in existing use environments, such as, for example, oil and gas processing facilities, oil refineries, and petrochemical processing facilities. In some exemplary embodiments, a thrust bearing may be located on the front face of the impeller, or radial bearings may be disposed between the vanes of the impeller. A radial bearing and thrust bearing may further be disposed on the shaft side of the impeller close to the impeller itself. The compressor may be configured so that the process fluid carries heat away from each of these bearings. 1. A liquid ring compressor comprising:an overhung impeller disposed on an end of an impeller shaft;a radial bearing disposed on the shaft side of the impeller; anda forward thrust bearing disposed between the impeller and an inlet gas head, wherein a forward thrust bearing rotor is mounted to a forward face of the overhung impeller and a forward thrust bearing stator is mounted to at least one of an inlet gas head surface or compressor casing.2. The liquid ring compressor of claim 1 , wherein an inner race of the radial bearing is connected to the impeller shaft.3. The liquid ring compressor of claim 1 , wherein an inner race of the radial bearing is connected to the impeller.4. The liquid ring compressor of claim 1 , wherein the forward thrust bearing is a poly-crystalline diamond bearing.5. The liquid ring compressor of claim 1 , further comprising a shaft thrust bearing disposed on the impeller shaft claim 1 , wherein the shaft thrust bearing has a stator end and a rotor end claim 1 , the stator end being secured to the impeller shaft.6. The liquid ring compressor of claim ...

MODULAR THRUST-COMPENSATING ROTOR ASSEMBLY

A modular rotor assembly for a screw pump including a power rotor and an idler rotor having respective first ends adapted to be disposed in a suction side of the screw pump and respective second ends adapted to be disposed in a discharge side of the screw pump, the power rotor including a balance piston adapted to be disposed within a pump housing of the screw pump with a radial clearance between an entire circumference of the balance piston and the pump housing is in a range between 1 micron and 200 microns, wherein the power rotor is provided with a tapered bearing surface configured to define a wedge-shaped, radial gap axially intermediate the power rotor and the idler rotor. 1. A screw pump comprising:a pump housing; anda rotor set disposed within the pump housing, the rotor set including a power rotor and an idler rotor having radially intermeshing threaded portions, the power rotor including a balance piston enclosed by the pump housing, wherein a radial clearance between an entire circumference of the balance piston and the pump housing is in a range between 1 micron and 200 microns;wherein the power rotor is provided with a tapered bearing surface configured to define a wedge-shaped, radial gap axially intermediate the power rotor and the idler rotor.2. The screw pump of claim 1 , wherein the tapered bearing surface is a downstream face of a thrust disc that extends radially from the power rotor.3. The screw pump of claim 2 , wherein the tapered bearing surface of the thrust disc confronts a tapered bearing surface defined by an upstream face of the idler rotor.4. The screw pump of claim 3 , wherein an angle of the tapered bearing surface of the thrust disc is greater than the angle of the tapered bearing surface of the idler rotor.5. The screw pump of claim 1 , further comprising a thrust disc extending radially from the power rotor into an annular groove in the idler rotor claim 1 , wherein the annular groove is bounded by a downstream face of the threaded ...

VANE-TYPE AIR MOTOR

The present invention provides a vane-type compressed air motor, comprising a casing, a rotor and vanes, wherein the casing is provided with an air inlet and an air outlet, a plurality of vanes are inserted into the rotor, and the rotor is disposed inside the casing to form a rotating body. The difference from the prior art is that the present invention further comprises a vane stopper, an inner retainer ring, stop bearings and a kit. Using the technique provided by the present invention, the wear of the vanes can be significantly reduced even under high pressure conditions, such that the service life of the vane is prolonged, air leakage is prevented, and the motor power can be improved. The present invention can also be used in various tools, having a significant effect of saving a lot consumption and cost, thereby having broad market prospects. 1. A vane-type compressed air motor , comprisinga casing, a rotor and vanes,the casing being provided with an air inlet and an air outlet, and;a plurality of vanes being inserted into the rotor which is disposed inside the casing to form a rotating body;wherein the vane-type compressed air motor further comprises: vane stoppers, an inner retainer ring, stop bearings and a kit,the vane stoppers are respectively disposed on two sides of an inner end side of the vane to form a protruding limit stop; the inner retainer ring is connected to an upper central portion of the rotor, with an outer ring thereof pushing the limit stop of the vane outwards; the stop bearings are respectively disposed at upper and lower portions of the rotor to restrict the vane stopper from moving outwards; and the kit is composed of an upper cover and a lower cover respectively disposed at two ends of the rotor, with inner side surfaces of the upper cover and the lower cover being provided with guide grooves, the vanes being movable within the guide grooves.2. (canceled)3. The vane-type compressed air motor according to claim 1 , wherein an insertion ...

FLUID DEVICE OUTPUT SHAFT WITH COATING

A fluid device includes a housing defining a central bore, a plurality of commutator holes that extend radially outward from the central bore and a plurality of axial passages in fluid communication with the commutator holes. A fluid displacement assembly is in fluid communication with the housing. The fluid displacement assembly includes volume chambers in fluid communication with the axial passages of the housing. An output shaft includes a valving portion disposed in the central bore of the housing. The valving portion includes a first and second lands and a valving land disposed between the first and second lands. The first land cooperates with the central bore to define a first journal bearing and the second land cooperates with the central bore to define a second journal bearing. A coating is applied to the first and second lands of the output shaft. The coating includes a polyamide 11 material. 1. A fluid device comprising:a housing defining a central bore, a plurality of commutator holes that extend radially outward from the central bore and a plurality of axial passages in fluid communication with the commutator holes;a fluid displacement assembly in fluid communication with the housing, the fluid displacement assembly including a plurality of volume chambers in fluid communication with the axial passages of the housing;an output shaft having a valving portion disposed in the central bore of the housing, the valving portion having a first land, a second land and a valving land disposed between the first and second lands, wherein the first land cooperates with the central bore of the housing to define a first journal bearing and the second land cooperates with the central bore of the housing to define a second journal bearing; anda coating applied to the first and second lands and the valving land of the output shaft, the coating including a polyamide 11 material.2. The fluid device of claim 1 , wherein the polyamide 11 material is at least 50% by weight of ...

BEARING FACES WITH FLUID CHANNELS FOR GEAR PUMPS

A bearing carrier has a bearing body including a first material. The bearing body has an exterior surface defining a bridge land with a finger cut and rotatably supports a first and second gear. The first and second gears intermesh with one another for pressurizing fluid traversing the gears between a fluid inlet and a fluid outlet defined in a housing enveloping the bearing carrier. The bridge land is defined in a second material integral with the first material. 1. A bearing carrier , comprising:a bearing body of a first material having a bridge land with a finger cut to channel fluid pressurized by intermeshing of gears rotatably supported by the bearing carrier into an outlet defined by a housing enveloping the bearing carrier, wherein the bridge land includes a second material integral with the first material.2. A bearing carrier as recited in claim 1 , wherein the first material is different from the second material.3. A bearing carrier as recited in claim 1 , wherein the second material has a greater ultimate stress than an ultimate stress of the first material.4. A bearing carrier as recited in claim 1 , wherein the second material has a greater yield stress than a yield stress of the first material.5. A bearing carrier as recited in claim 1 , wherein the second material has a thermal coefficient of expansion that is less than a thermal coefficient of expansion of the first material.6. A bearing carrier as recited in claim 1 , wherein the second material has a melting point that is greater than a melting point of the first material.7. A bearing carrier as recited in claim 1 , wherein the density of the second material is less than a density of the first material.8. A bearing carrier as recited in claim 1 , wherein a galvanic potential of the second material is similar to a galvanic potential of the first material.9. A bearing carrier as recited in claim 1 , wherein the first material comprises a copper alloy and the second material comprises monel claim 1 , ...

ROTARY PISTON AND CYLINDER DEVICE

A rotary piston and cylinder device () comprising a rotor (), a stator () and a rotatable shutter (), the rotor comprising a piston () which extends from the rotor into a working chamber, the rotor and the stator together defining a working chamber, the shutter arranged to extend through the working chamber and forming a partition therein, and the shutter comprising a slot which allows passage of the piston therethrough, a bearing () which mounts the rotor relative to the stator, the rotor comprising a formation () which extends substantially axially away from the chamber, and the formation being radially outward of the bearing and extending around the axis of rotation, and the formation comprising a surface which at least in part defines a space between the rotor and the stator, and at least part of that space and/or the formation overlaps in an axial direction with the bearing. 1. A rotary piston and cylinder device comprising a rotor , a stator and a rotatable shutter ,the rotor including a piston which extends from the rotor into a working chamber, the rotor and the stator together defining a working chamber,the shutter arranged to extend through the working chamber and forming a partition therein, and the shutter including a slot which allows passage of the piston therethrough,a bearing which mounts the rotor relative to the stator,the rotor including a formation which extends substantially axially away from the chamber, and the formation being radially outward of the bearing and extending around the axis of rotation, and the formation including a surface which at least in part defines a space between the rotor and the stator, and at least part of that space and/or the formation overlaps in an axial direction with the bearing.2. The device as claimed in in which the formation comprises an annular or cylindrical formation.3. The device as claimed in in which the annular or cylindrical formation is provided rearwardly of the chamber.4. The device as claimed in in ...

BEARING ASSEMBLY FOR SUPPORTING A SCREW-COMPRESSOR ROTOR AND METHOD FOR ASSEMBLING A SCREW COMPRESSOR

A bearing assembly for supporting a screw-compressor rotor includes a shaft having a center of mass, at least one angular contact ball bearing mounted on the shaft, and at least one cylindrical roller bearing mounted on the shaft. A spacing from the angular contact ball bearing to the center of mass is shorter than a spacing from the cylindrical roller bearing to the center of mass. 1. A bearing assembly for supporting a screw-compressor rotor comprises:a shaft having a center of mass,at least one angular contact ball bearing mounted on the shaft, andat least one cylindrical roller bearing mounted on the shaft,wherein a spacing from the at least one angular contact ball bearing to the center of mass is shorter than a spacing from the at least one cylindrical roller bearing to the center of mass.2. The bearing assembly according to claim 1 , wherein the at least one cylindrical roller bearing is disposed on an end region of the shaft.3. The bearing assembly according to claim 1 , wherein the at least one cylindrical roller bearing has an NJ design claim 1 , an NUP design claim 1 , or an NJP design.4. The bearing assembly according to claim 1 , wherein the at least one angular contact ball bearing is disposed such that it transmits a force claim 1 , which acts on an inner ring of the at least one angular contact ball bearing in an axial direction toward the center of mass of the shaft claim 1 , through an outer ring of the at least one angular contact ball bearing onto a housing of the bearing assembly.5. The bearing assembly according to claim 1 , wherein an axial bearing clearance of the bearing assembly claim 1 , which is present when a force acts on an inner ring of the at least one angular contact ball bearing in axial direction away from the center of mass claim 1 , is defined by a disc that forms a flange of the at least one cylindrical roller bearing.6. The bearing assembly according to claim 1 , including a disc disposed axially between an outer ring of the ...

Scroll compressor

[Problem] To exchange the roller bearing that has been used in a scroll compressor mounted in an automobile with a m slide bearing. To provide a slide bearing having a performance that is at least equivalent to that of a roller bearing. [Solution] The slide bearing results from baking onto a back metal a sliding layer of 5-60 wt % graphite having an average diameter of 5-50 μm and a graphitization degree of at least 0.6, the remainder comprising a polyimide resin and/or a polyamide-imide resin. The form of the graphite has: (a) an average shape factor (YAVE) as defined of 1-4 for the particles excluding the minute particles that are no greater than 0.5 times the average diameter, and there being at least 70% by number of particles having a shape factor (Y) in the range of 1-1.5; or (b) graphite particles having a particle ratio of at least 0.5 being at least 50% of the total by number.

ROLLING-ELEMENT BEARING SUPPORT MODULE AND COMPRESSOR

A rolling-element bearing support module includes a support for mounting on an end wall of a machine. The machine has a bore in the end wall and a shaft in the bore, and the shaft has an abutment surface in a plane of the end wall. A rolling-element bearing assembly of the module includes a first bearing and a second bearing on the shaft, and a side surface of the first bearing is aligned with a plane corresponding to the end surface of the machine. The first bearing is formed to transmit, via the side surface, axial forces in at least one direction and the second bearing is disposed on a side of the first rolling-element bearing that faces away from the side surface of the first bearing. 1. A machine , comprising:an end surface with a bore, and a shaft having an abutment surface extending in a radial direction, wherein the shaft at least partially extends into the bore in an axial direction, wherein the end surface and the abutment surface extend substantially parallel to each other; anda rolling-element bearing support module comprising:a support; anda rolling-element bearing assembly including a first rolling-element bearing and a second rolling-element bearing, the second rolling-element bearing being disposed indirectly or directly adjacent to the first rolling-element bearing in the axial direction,wherein the rolling-element bearing assembly is formed to transmit, via the first rolling-element bearing, axial forces in at least one axial direction, but substantially no radial forces;wherein the rolling-element bearing assembly is further formed to support, and transmit to the support via the second rolling-element bearing, radial forces, but substantially no axial forces in the at least one axial direction;wherein a side surface of the first rolling-element bearing is aligned with a plane corresponding to the end surface of the machine or the abutment surface of the shaft;wherein the first rolling-element bearing is formed to transmit, via the side surface, ...

Thermal energy recovery device

Provided is a thermal energy recovery device in which poor lubrication of a bearing can be inhibited when an expander is driven. The thermal energy recovery device includes an evaporator (10), an expander (20), a power recovery machine (30), a condenser (40), a pump (50), a circulation flow path (60), a cooling flow path (70) for supplying working fluid from the pump (50) partially to the power recovery machine (30), an on-off valve (V1) provided in the cooling flow path (70), and a control unit (80), in which the expander (20) has a rotor (21), a bearing (22), and a primary casing (23), and in which the power recovery machine (30) has a power recovery unit (31) and a secondary casing (35), and in which upon reception of a stop signal for stopping power recovery by the power recovery machine (30), the control unit (80) closes the on-off valve (V1).

Electric compressor

A compressor includes a main housing having an internal space, a motor provided in the main housing and comprising a stator and a rotor, a shaft coupled to the rotor, and a shaft mounting portion provided at one end of the shaft and having a smaller diameter than the shaft. A sub-ball bearing is coupled to the shaft mounting portion, and a fixing latch is coupled to the shaft mounting portion. The fixing latch includes a latching portion configured to constrain the sub-ball bearing in the shaft mounting portion.

VAPOR COMPRESSION SYSTEM AND METHOD OF EXTENDING SERVICE LIFE OF SAME

A vapor compression system including a motor having a housing and a shaft having an axis, the shaft urgable into rotational movement by the motor for powering a system component. A primary bearing and a secondary bearing are positioned in the housing for rotatably supporting the shaft, the primary bearing rotatably supporting the shaft during normal system operation. A first bearing stop and a second bearing stop are positioned on opposite sides of the secondary bearing for transmitting axial forces generated along the shaft for reaction by the motor housing during abnormal system operation. At least a portion of corresponding surfaces of each of the first bearing stop and the second bearing stop facing the secondary bearing have a protective overlying layer of material applied thereto. 1. A vapor compression system comprising:a motor comprising a housing;a shaft comprising an axis, the shaft urgable into rotational movement by the motor for powering a system component;a primary bearing and a secondary bearing positioned in the housing for rotatably supporting the shaft, the primary bearing rotatably supporting the shaft during normal system operation; anda first bearing stop and a second bearing stop positioned on opposite sides of the secondary bearing for transmitting axial forces generated along the shaft for reaction by the motor housing during abnormal system operation;wherein at least a portion of corresponding surfaces of each of the first bearing stop and the second bearing stop facing the secondary bearing comprises a protective overlying layer of material applied thereto.2. The vapor compression system of claim 1 , wherein the protective overlying layer is taken from the group consisting of titanium nitride claim 1 , titanium carbon nitride claim 1 , titanium aluminium nitride claim 1 , and other variations of titanium nitride.3. The vapor compression system of claim 1 , wherein the primary bearing is a magnetic bearing.4. The vapor compression system of ...

VARIABLE DISPLACEMENT VANE PUMP

A variable displacement vane pump includes a pump housing, a drive shaft supported in the pump housing, a rotor rotated by the drive shaft, a plurality of vanes mounted to the rotor, a cam ring disposed movably around the pump element and a pressure plate arranged facing the rotor and the cam ring. The pressure plate has formed therein a discharge hole and a drive shaft insertion hole. The pump housing has formed therein a suction hole, a high-pressure chamber and a low-pressure chamber. The variable displacement vane pump further includes a first seal member disposed on a pressure receiving surface of the pressure plate so as to separate the drive shaft insertion hole from the high-pressure chamber and a second seal member disposed on the pressure receiving surface of the pressure plate so as to separate the low-pressure chamber from the high-pressure chamber and the drive shaft insertion hole. 1. A variable displacement vane pump for supplying a hydraulic fluid from a fluid reservoir , comprising:a pump housing provided with a pump element storage part;a drive shaft supported rotatably in the pump housing;a pump element placed in the pump element storage part, the pump element comprising: a rotor rotated by the drive shaft and having a plurality of slots formed therein at positions in a circumferential direction around a rotation axis of the rotor; and a plurality of vanes retractably mounted in the respective slots;an annular cam ring disposed movably around the pump element in the pump element storage part, thereby defining a plurality of pump chambers by the rotor, the vanes and the cam rings; anda pressure plate arranged in the pump element storage part, with the driving shaft being inserted through a drive shaft insertion hole of the pressure plate in an axial direction along the rotation axis of the rotor, and having a rotor-side surface facing the rotor and the cam ring and a pressure receiving surface opposite the rotor-side surface,the pressure plate ...

Rotary piston and cylinder device

A rotary piston and cylinder device ( 1 ) comprising: a rotor ( 2 ), comprising a rotor surface ( 2 a ), a piston ( 5 ) which extends from the rotor surface, a stator ( 4 ), a rotatable shutter ( 3 ), the rotor surface and the stator together defining an annular chamber, and the piston arranged to rotate, through the annular chamber, wherein when the chamber is viewed in axial cross-section, substantially a single surface of the stator in part defines the chamber ( 100 ).

HYBRID PROFILE SUPERCHARGER ROTORS

A supercharger rotor comprising a plurality of lobes around a center axis, each lobe of the plurality of lobes comprising a rotor profile. The rotor profile comprises a tip, a convex addendum comprised of at least two interpolated and stitched spline curves, an undercut region, and a root base. 1. A supercharger rotor blade profile for multi-lobed rotors comprising a cycloid curve modified with at least two interpolated and stitched spline curves.2. The supercharger rotor blade profile of claim 1 , further comprising a flattened tip.3. The supercharger rotor blade profile of claim 1 , wherein the rotor blade profile further comprises a concave undercut claim 1 , a flattened tip claim 1 , and a transition zone between the undercut and the tip claim 1 , and wherein the first spline curve removes material from the profile in the transition zone claim 1 , while the second spline curve adds material to the profile in the transition zone.4. The supercharger rotor blade profile of claim 1 , wherein the rotor blade profile comprises a root base claim 1 , and wherein the root base comprises a third spline curve to remove material from the profile.5. A supercharger rotor blade profile comprising a concave undercut claim 1 , a flattened tip claim 1 , and a convex addendum between the concave undercut and the flattened tip claim 1 , wherein the convex addendum comprises a cycloid curve comprising a transition zone claim 1 , and wherein the transition zone comprises at least two interpolated and stitched spline curves.6. The supercharger rotor blade profile of claim 5 , wherein the concave undercut area comprises a dedendum comprising at least two interpolated and stitched spline curves that are mirror images of the at least two interpolated and stitched spline curves of the transition zone.7. A supercharger rotor comprising a plurality of lobes around a center axis claim 5 , each lobe of the plurality of lobes comprising a rotor profile claim 5 , the rotor profile comprising:a ...

Miniature high pressure pump and electrical hydraulic actuation system

Methods and apparatus pertaining to positive displacement pumps, and further to hydraulic actuation systems. In some embodiments the pumps are gear pumps with bi-directional operation. In some embodiments the actuation system includes a motor-driven, reversible operation gear pump providing fluid under pressure to a rod and cylinder.

ROTARY COMPRESSOR

A rotary compressor may include a rotational shaft; first and second bearings that support the rotational shaft in a radial direction; a cylinder disposed between the first bearing and the second bearing, and forming a compression space; a rotor forming a contact point, disposed in the compression space, and having a predetermined gap with the cylinder, and coupled to the rotational shaft to compress refrigerant according to rotation; and at least one vane slidably inserted into the rotor, and contacting an inner circumferential surface of the cylinder to separate the compression space into a plurality of regions. Each of the at least one vane may include an upper pin that extends upward, and a lower pin that extends downward, a surface of the first bearing may include a first rail groove into which the upper pin may be inserted, and a first step disposed adjacent to the first rail groove, and a surface of the second bearing may include a second rail groove into which the lower pin may be inserted, and a second step disposed adjacent to the second rail groove.

EXPANDER

In order to suppress the damage and the degradation in durability of a bearing of an expander, simplify the configuration of the expander, and reduce the manufacturing cost thereof, an expander of the present invention includes an expander rotor that is rotationally driven by an expanding force transmitted from vapor of a working medium introduced into an expansion chamber and a first bearing that supports a first rotation shaft of the expander rotor to a vapor inlet, a casing includes therein first bearing chambers that have a pressure lower than that of the vapor inlet and accommodate the first bearing, and a passage that leads lubricant to a low-pressure portion having a pressure lower than that of the first bearing chamber is connected to a position above the lowermost portion of the first bearing in the first bearing chamber. 1. An expander , comprising:a casing that includes therein an expansion chamber into which lubricant and vapor of a working medium are introduced;an expander rotor that is rotationally driven by an expanding force transmitted from the vapor of the working medium introduced into the expansion chamber;a first bearing that supports a rotation shaft of the expander rotor to a working medium feeding port of the expansion chamber so that the expander rotor is rotatable;a second bearing that supports the rotation shaft of the expander rotor to a working medium lead-out port of the expansion chamber so that the expander rotor is rotatable;a first bearing chamber that is provided inside the casing and accommodates the first bearing, the pressure inside the first bearing chamber being lower than that of the feeding port of the expansion chamber; anda lubricant passage that connects a position above a lowermost portion of the first bearing in the first bearing chamber to a low-pressure portion having a pressure lower than that of the first bearing chamber.2. The expander according to claim 1 , whereina shaft seal that seals the outer periphery of the ...

VANE MACHINE HAVING STATIONARY AND ROTATING CYLINDERS WITH REDUCED CLEARANCE

Vane machine with rotating cylinder and first and second stationary cylinders with reduced rotating parts clearance working with compressible or incompressible fluid. The first stationary cylinder at its intake and cover has axial canal that takes fluid to the radial opening into the machine working chamber in order to decrease the vane machine diameter. 112345121411251. Vane machine with stationary and rotating cylinder parts with decreased rotating parts clearance , from the volumetric rotating machine group , that may be applied as a working or a driving machine , that as its working fluid utilises compressible or incompressible fluids , that has one or more stationary cylinders , that has one or more rotating cylinders , that has eccentrically positioned rotor with lateral plates and vanes , that has casing housing all the above mentioned parts , and that has covers closing the machine from its lateral sides , wherein the rotating parts clearance decrease is achieved in the variants (B) , (B) , (B) , (B) , (B) and (B); the cylinder rotating part is situated between first stationary cylinder (A) and second stationary cylinder (A); in the cover (D) is made fluid axial intake canal (); in the first stationary cylinder (A) is made fluid axial exhaust canal () to radial opening () charging the fluid into the vane machine working chamber; in casing (F) is made the working fluid axial distribution (F) to all stationary cylinders.21291081210713. The vane machine as claimed in and variant (B) claim 1 , wherein the cylinder rotating parts clearance is deceased by means of bearings positioned between the stationary cylinders (A) and (A); the bearings are pulled over common additional ring () with raised shroud () between the bearing inner rings (); spiral spring () is placed around the shroud (); between the bearing outer rings () is placed fixed distancer ().3112161413. The vane machine as claimed in and variant (B) claim 1 , wherein the cylinder rotating parts clearance ...

Scroll Fluid Machine

Scroll fluid machine () in which the dislodgement of a slide bush () and a spring (), which are provided in an eccentric bush (), is prevented. Provided in receiving hole () of eccentric bush () are slide bush (), which is movable in the direction of eccentricity, and spring (), which biases slide bush () in a moving direction. A spring holding section () and engagement projections () are formed on slide bush (). After slide bush () is placed in the receiving hole (), engagement projections () engage with eccentric bush () in a state in which slide bush () has been moved by the biasing force of spring (), thus preventing slide bush () from falling off the receiving hole (), and the spring holding section () prevents the spring () from falling off the receiving hole ().

Bush bearing and a scroll compressor including a bush bearing

A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.

ROTARY ENGINE

A rotary engine that includes at least two sets of baffles that are arranged between a cylinder body and a rotor, and are in seal fit with the inner wall of the cylinder body to form at least two sealed cavities in the cylinder body; at least one set of the baffle is a movable baffle, and can rotate around the center of the cylinder body; a one-way rotation mechanism is arranged between the movable baffle and the rotor, and drives the rotor to rotate in one direction. The rotary engine has the benefits that the sealed cavities are formed by the movable baffle and the cylinder body; four working strokes including air suction, compression, ignition and exhaust are carried out in each sealed cavity; the movable baffle rotates under acting and counter-acting forces, drives the one-way rotation mechanism to rotate, and then drives the rotor to rotate. 1. A rotary engine , comprising a cylinder body , a rotor , as well as an air inlet , an air outlet and an ignition device , which are arranged on the cylinder body , wherein at least one set of movable baffle is arranged in the cylinder body , and is in seal fit with the inner wall of the cylinder body to form at least two sealed cavities in the cylinder body; the movable baffle can rotate around the center of the cylinder body; a one-way rotation mechanism is arranged between the movable baffle and the rotor , and drives the rotor to rotate in one direction.2. The rotary engine of claim 1 , further comprising a fixed baffle claim 1 , wherein one set of the movable baffle is arranged and can rotate around the center of the cylinder body in a reciprocating manner.3. The rotary engine of claim 2 , wherein the one set of movable baffle comprises two inner catches and a disk for fixing the inner catches claim 2 , and a rotating shaft is further arranged in the center of the disk.4. The rotary engine of claim 3 , wherein the one-way rotation mechanism comprises a first one-way bearing and a second one-way bearing which are ...

GEAR PUMP AND GEAR MOTOR

A gear pump or a gear motor includes a casing, a helical drive gear, a helical driven gear, a drive-side space, and an idler-side space. The drive and driven gears mesh with each other in the casing to partition inside of the casing so as to include high and low pressure spaces. The drive-side and idler-side spaces are each configured to allow pressure therein to become higher than a pressure in the low-pressure space. The drive-side space faces an end portion of a drive shaft rotatably supporting the drive gear. The idler-side space faces an end portion of an idler shaft rotatably supporting the driven gear. The end portion of the drive shaft is pushed in a predetermined direction by working fluid supplied to the drive-side space. The end portion of the idler shaft is pushed in the predetermined direction by working fluid supplied to the idler-side space. 1. A gear pump or a gear motor comprising:a casing;a helical drive gear and a helical driven gear, the drive gear and the driven gear meshing with each other in the casing and partitioning an inside of the casing so as to include a high-pressure space and a low-pressure space; anda drive-side space and an idler-side space each configured to allow pressure therein to become higher than a pressure in the low-pressure space, the drive-side space facing an end portion of a drive shaft rotatably supporting the drive gear, the idler-side space facing an end portion of an idler shaft rotatably supporting the driven gear,the end portion of the drive shaft being pushed in a predetermined direction by working fluid supplied to the drive-side space, and the end portion of the idler shaft being pushed in the predetermined direction by working fluid supplied to the idler-side space.2. The gear pump or gear motor according to claim 1 , further comprising when the pressure in the drive-side space is not higher than a drive-side intermediate pressure lower than a pressure in the high-pressure space, fluid communication between ...

Gear pump journal bearing lubrication flow feed

A pump bearing member is disclosed for use in a pump bearing assembly and a gear pump assembly.

Rotary machine

The disclosure provides rotary machines that include, in one embodiment, a rotatable shaft defining a central axis A, the shaft having a first end and a second end. The shaft can have an elongate first island disposed thereon. The first island can have a body with a volume generally defined between front and rear surfaces that are spaced apart. The front and rear surfaces can lie in a plane parallel to a radial axis R. The perimeters of the front and rear surfaces can define a curved perimeter surface therebetween. The disclosure further provides embodiments having stationary islands and casings that rotate about the island.

Supercharger

A supercharger includes a rotor housing defining a pair of cylindrical chambers. A driving shaft bearing is to support a driving rotor shaft for rotation in the rotor housing. A driven shaft bearing is to support a driven rotor shaft for rotation in the rotor housing. An oil sump housing is to enclose a timing gear end of the rotor housing. A shaft seal is disposed between the rotor housing and each respective rotor shaft. The oil sump housing, the rotor housing and driving and driven shaft seals define a closed container for oil to lubricate the driving shaft bearing, the driven shaft bearing, a driving timing gear and a driven timing gear. The oil pools in the closed container and a top surface of the oil is spaced below the timing gears when the driving rotor shaft is in a vertical orientation.

Scroll compressor having a baseplate including first and second cylindrical rim portions

The scroll compressor ( 2 ) comprises a hermetic enclosure ( 3 ) comprising a midshell ( 4 ), an upper cap ( 5 ) and a baseplate ( 6 ), the baseplate ( 6 ) comprising a mounting base ( 32 ) having a plate shape and including a central opening ( 33 ), and a central cap ( 28 ) arranged within the central opening ( 33 ), the central cap ( 28 ) comprising a concave portion ( 29 ) and a first cylindrical rim portion ( 30 ) extending upwardly and having an outer diameter substantially corresponding to an inner diameter of the midshell ( 4 ); a compression unit ( 11 ) configured to compress refrigerant; and an electric motor ( 21 ) configured to drive the compression unit ( 11 ) via a drive shaft ( 19 ). The mounting base ( 32 ) comprises a second cylindrical rim portion ( 34 ) extending upwardly and surrounding the central opening ( 33 ), wherein an inner diameter of the second cylindrical rim portion ( 34 ) substantially corresponds to the inner diameter of the midshell ( 4 ) and to an outer diameter of the first cylindrical rim portion ( 30 ).

GEAR PUMP AND PRINTING APPARATUS PROVIDED WITH SAME

A gear pump includes a pump casing and a gear assembly. The gear assembly includes a driving gear, a driven gear, a driving gear shaft, a driven gear shaft, and a bearing frame. The bearing frame includes a frame main body, a pair of driving side bearing portions, and a pair of driven side bearing portions. The frame main body has a pair of bearing support potions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions. The bearing support portions and the connecting portion are integrated together as a one-piece member. 1. A gear pump for transporting a fluid comprising:a pump casing; anda gear assembly which is accommodated in the pump casing, a driving gear,', 'a driven gear that meshes with the driving gear,', 'a driving gear shaft to which the driving gear is attached,', 'a driven gear shaft to which the driven gear is attached, and', 'a bearing frame that rotatably supports the driving gear shaft and rotatably supports the driven gear shaft,, 'the gear assembly including'} a frame main body,', 'a pair of driving side bearing portions which is provided in the frame main body and which supports the driving gear shaft, and', 'a pair of driven side bearing portions which is provided in the frame main body and which supports the driven gear shaft,, 'the bearing frame including'}the frame main body having a pair of bearing support potions, in which the driving side bearing portion and the driven side bearing portion are provided, and a connecting portion which connects the bearing support portions, the bearing support portions and the connecting portion being integrated together as a one-piece member.2. The gear pump according to claim 1 ,wherein each of the driving side bearing portion and the driven side bearing portion is formed of a journal bearing which is separate from the frame main body.3. The gear pump according to claim 2 ,wherein each of the driving ...

GEROTOR PUMP

A gerotor pump includes a rotor wherein only on the face wall of the rotor that lies adjacent to a pressure kidney and a suction kidney, a lubrication surface inclined in the direction of rotation of the rotor, relative to the surface plane of the face wall of the rotor, is disposed on each tooth, in each instance, over its tooth height, either starting directly in the center tooth plane or starting “offset” ahead of the center tooth plane in the direction of rotation of the rotor, which surface is formed from a level surface or multiple, always level partial surfaces that follow one another, which enclose an angle of inclination relative to the surface plane of the face wall of the rotor, in each instance, which angle lies in the range from 0.2° to 7°, in each instance. 1123146533786129. Gerotor pump having an inner gear having outer teeth , the rotor () , and an outer gear having inner teeth , the gear ring () , which is guided in a circular working chamber of a pump housing () , in such a manner that the two gear wheels stand in meshing engagement and rotate about their own axes , which are , however , offset relative to one another , wherein the rotor () is mounted on a bearing sleeve () on one side , and side walls () are disposed on both sides of the face walls () of the gear wheels that mesh with one another , , in each instance , which walls are either integrated into the pump housing () or can be disposed on the pump housing () as covers () , wherein an arc-shaped pressure kidney () is disposed in at least one of these side walls () , on both sides of the eccentricity plane that contains the axes of rotor () and gear ring () , which axes are offset relative to one another and an arc-shaped suction kidney () is disposed on the opposite side , in each instance , wherein{'b': 5', '1', '8', '9', '11', '1', '5', '1', '10', '1', '5', '1, 'only on the face wall () of the rotor () that lies adjacent to the pressure kidney () and the suction kidney (), a lubrication ...

Screw compressor

A screw compressor includes a casing, a motor provided in the casing, a screw rotor inserted into a cylinder in the casing, a bearing holder, a drive shaft, a first bearing, and a second bearing. The cylinder is formed on a lateral side of the motor. The bearing holder is disposed on an opposite side of the screw rotor from the motor and adjacent to the screw rotor. The drive shaft is connected to the motor and the screw rotor. The first bearing is disposed adjacent to the screw rotor. The second bearing is disposed adjacent to the motor in an axial direction of the drive shaft. At least a portion of the first bearing is disposed inside the screw rotor.

Screw Compressor

A screw compressor that enhances performance of a compressor main unit and a motor is provided. The screw compressor includes an oil-injected compressor main unit that compresses air with injecting oil in a compression chamber and an axial-gap motor that drives the compressor main unit. A male rotor of the compressor main unit has a suction-side shaft portion connected coaxially with a rotor shaft of the motor. The screw compressor further includes a suction-side bearing that rotatably supports the suction-side shaft portion of the male rotor. The suction-side bearing restricts axial movement of the suction-side shaft portion and bears a radial load and axial loads in both directions.

AUTOMOTIVE AUXILIARY ASSEMBLY VACUUM PUMP HAVING A SINGLE-PIECE FLANGE ELEMENT

An automotive auxiliary assembly vacuum pump includes a housing composite structure with an electric motor section, a pump section, a pump inlet opening, and a pump outlet opening, a motor housing part, a bearing plate which closes the motor housing part proximally, and a pump rotor with a rotor body. The electric motor section includes a motor rotor which is surrounded by the motor housing part and which is closed by the bearing plate. The pump section includes a pump housing which defines a pump chamber and which includes a closure element, at least one pump chamber inlet opening, and at least one pump chamber outlet opening. The pump housing is formed at least by axially proximal and axially distal thrust washers and a radial thrust ring. Only the bearing plate and the axially proximal thrust washer are provided as a single-piece flange element. 17-. (canceled)8: An automotive auxiliary assembly vacuum pump which is configured as a dry-running vane cell pump and which is driven by an electric motor , the automotive auxiliary assembly vacuum pump comprising:a housing composite structure comprising an electric motor section, a pump section, a pump inlet opening, and a pump outlet opening;a motor housing part;a bearing plate configured to support a bearing and to close the motor housing part proximally; anda pump rotor comprising a rotor body which comprises at least three rotor blades which are displaceably mounted on the rotor body;wherein,the electric motor section comprises a motor rotor which is surrounded in a radial distal manner and in an axially distal manner by the motor housing part and which is closed proximally by the bearing plate,the pump section comprises a pump housing which is configured to define a pump chamber and which comprises a closure element, at least one pump chamber inlet opening, and at least one pump chamber outlet opening, the pump housing being formed at least by an axially proximal thrust washer, an axially distal thrust washer, and ...

Integrated Motor-Pump

An integrated motor-driven pump is proposed that reduces the part count of the assembly and addresses several tolerance and alignment issues by combining the outlet plate and retainer ring of the pump into a single component. The integrated motor-driven pump may also include an axial bushing for support of the motor shaft and inner gerotor, ensuring concentric rotation of these components. Combining one of the inlet or outlet plates with the retainer ring and including a central bushing eliminates the need for alignment pins and complex assembly procedures. The disclosure also combines one of the motor end plates with the disclosed integrated pump inlet or outlet plate, retainer ring and central bushing, eliminating the need for a separate motor end plate and bushing to support the motor shaft.

BEARING WITH AN ASYMMETRIC PRESSURE BALANCE GROOVE

A pump bearing including a top face, a side face peripherally surrounding the top face, a bottom face opposed to the top face, a first bearing bore projecting from the top face to the bottom face, an edge defined where the top face meets the side face, and an asymmetric pressure balance groove defined within a portion of the edge of the top face and the side face defining first depth from the top face. 1. A pump bearing comprising:a top face;a side face peripherally surrounding the top face;a bottom face opposed to the top face;a first bearing bore extending from the top face to the bottom face;an edge defined where the top face meets the side face; andpressure balance groove defined within a portion of the edge of the top face and the side face defining first depth from the top face, wherein the pressure balance groove comprises a first groove portion that surrounds an angular portion of the first bearing bore and a second groove portion that surrounds an angular portion of the second bearing bore, wherein the surrounded angular portion of the second bearing bore is longer than the surrounded angular portion of the first bearing bore.2. The bearing of claim 1 , further comprising a second bearing bore parallel to the first bore.3. The bearing of claim 1 , wherein the top face is elongated along a primary axis.4. The bearing of claim 1 , wherein the top face includes a pair of grooves having a depth greater than the first depth of the asymmetric pressure groove.5. (canceled)6. The bearing of claim 15 , wherein the pressure groove surrounding the angular portion of the first bearing bore extends to 30 degrees with respect to a centerline of the top face in a clockwise direction.7. The bearing of claim 6 , wherein the pressure groove surrounding the angular portion of the first bearing bore extends greater than 30 degrees with respect to a centerline of the top face in a counter-clockwise direction.8. The bearing of claim 1 , wherein the pressure groove surrounding ...

Roticulating Thermodynamic Apparatus

An apparatus comprising: a shaft () rotatable about a first rotational axis (); an axle () defining a second rotational axis (); a first piston member () extending from the axle () towards a distal end of the shaft (); a rotor () carried on the axle (); the rotor () comprising a first chamber (); a housing () having a wall defining a cavity (); a first magnetic guide feature (); a second magnetic guide feature (); whereby: the rotor () and axle () are rotatable with the shaft () around the first rotational axis (); the rotor () is pivotable about the axle () to permit relative pivoting motion between the rotor () and the first piston member () as the rotor rotates about the first rotational axis (); and at least one of the first magnetic guide feature () and second magnetic guide feature () comprises an electromagnet to pivot the rotor () about the axle () relative to the first piston member (). 129-. (canceled)30. An apparatus comprising:a shaft which defines and is rotatable about a first rotational axis;an axle defining a second rotational axis, the shaft extending through the axle;a first piston member provided on the shaft, the first piston member extending from the axle towards a distal end of the shaft; the rotor comprising a first chamber,', 'the first piston member extending across the first chamber;, 'a rotor carried on the axle;'}a housing having a wall which defines a cavity, the rotor being rotatable and pivotable within the cavity;a first magnetic guide feature coupled to the rotor;a second magnetic guide feature coupled to the housing;the rotor and axle are rotatable with the shaft around the first rotational axis;the rotor is pivotable about the axle about the second rotational axis to permit relative pivoting motion between the rotor and the first piston member as the rotor rotates about the first rotational axis; andat least one of the first magnetic guide feature and second magnetic guide feature comprises an electro-magnet operable to ...

Rotary screw compressor

FIELD: compression of natural gas in gas and oil fields; gas supply systems, gas charging and gas lift stations for production of gas and oil; gas and oil transportation; oil refining and chemical plants; power plants. SUBSTANCE: rotary screw compressor includes housing, drive and driven rotors located in working space. Housing is provided with exhaust hole at high-pressure side and suction hole at low-pressure side. At least one rotor is secured for rotation at low-pressure side by means of bearing device which includes load-bearing bracket fixed in end plate. Load-bearing bracket has cylindrical outer circular surface and extends into cavity located in rotor forming first chamber between bracket and rotor. Bracket is provided with passage for supply of oil to first chamber. Circular surface of load-bearing bracket is provided with groove connected with oil supply passage and recess connected with oil drain passage in load-bearing bracket. Sealing devices are provided between first chamber and working space. EFFECT: enhanced efficiency. 13 cl, 8 dwg сб О0тс ПЧ ГЭ РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2107 192‘ 13) Сл Е 04 С 18/16 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96102602/06, 13.07.1993 (46) Дата публикации: 20.03.1998 (56) Ссылки: УР, патент, А-59-168290, кл. Е 04 С 18/16, 1984. (86) Заявка РСТ: МЕ 93/00150 (13.07.93) (71) Заявитель: Томассен Интернэшнл Б.В. (МЕ) (72) Изобретатель: Мирзоев Тимур Бердиевич[К У], Галеев Ахмет Мухетдинович[КУ], Максимов Валерий Архипович[КУ], Сосков Сергей Николаевич[КУ], Ишмуратов Рустам Ризаевич[КУ], Абайдуллин Альферед Ибрагимович[КО] (73) Патентообладатель: Томассен Интернэшнл Б.В. (М) (54) РОТАЦИОННЫЙ ВИНТОВОЙ КОМПРЕССОР (57) Реферат: Использование: для сжатия природного газа на газовых и нефтяных месторождениях, В системах газоснабжения, на газозаправочных и газолифтных станциях для производства газа и нефти, при газонефтяных перевозках, на ...

油圧ポンプ

(57)【要約】 【課題】 駆動軸と軸受けブッシュとの間に安定した潤 滑油膜を形成して、潤滑不良を生じることのない油圧ポ ンプを提供する。 【解決手段】 軸受け孔１２が貫通形成されたポンプボ ディ１とポンプカバー２との間にポンプユニット３を収 装する。軸受け孔内１２には、ポンプユニット３を駆動 する駆動軸２５及びこの駆動軸２５を軸受けする軸受け ブッシュ２２を挿入すると共に、軸受け孔１２の端部に はシール室１３を形成する。軸受け孔１２内に、ポンプ ユニット３側からシール室１３へ連通して、作動油を流 通させる油溝１４を形成する。軸受けブッシュ２２は、 複数のブッシュ片２３を軸受け孔１２の軸方向に所定の 間隔をおいて配置することによって構成する。ブッシュ 片２３は板状の部材を筒状の丸めて形成する。軸受けブ ッシュ２２の両側に位置するブッシュ片２３の合せ目２ ３を、相互に周方向に離れた位置に配置した。

배출장치

본 발명의 배출장치는 두 개의 단부벽(3,4)들과 케이싱(5)으로 한정되고 작동 매체가 유입구(6)와 배출구(7)를 통해 작동실에 유입 및 배출될 수 있으며 하우징(1)에 형성된 작동실(2)을 갖는 것으로, 특히 펌프로서 사용하기 위한 것이다. 하우징에서 동작가능하게 배치된 적어도 하나의 회전자(8)는 작동실을 분할하고, 회전자 제어용 가이드 기어(10)가 작동실 외측에 배치된 구동장치(11)에 연결되어 있다. 본 발명은 이런 종류의 공지의 배출장치 보다 가볍고 적은 비용으로 제조될 수 있으며, 특히 베어링들에 대하여 어떤 특별한 윤활유 없이 작동될 수 있는 배출장치를 제공하는 것을 목적으로 한다. 이러한 목적은 하나 또는 복수개의 회전자가 작동실내에서 적어도 부분적으로 지지되며, 작동실에 배치된 하나 또는 복수개의 베어링(16,17)에는 작동 매체가 접근될 수 있고 세라믹재로 만들어진 구름 베어링으로 구성되어 윤활유 없이 배출장치의 작동이 가능하도록 배출장치를 구성함으로써 달성된다. 따라서, 윤활유로부터 작동실의 오염이 사실상 방지된다.

Bearing device, in particular for a steering column, and rotary engine provided with such a device

本发明涉及一种包括内环(2)和外环(3)的轴承装置(1)，所述内环和外环各设有用于滚动元件(4)的轴承轨道，所述滚动元件在环之间与轴承轨道接触布置。两个环(2,3)的至少一个包括外壳(6)，所述外壳设有轴向部(6a)和在其端部的两个径向部(6b,6c)。该装置(1)还包括两个轴承元件(7,8)和至少一个预张紧元件(9)，所述轴承元件装配在外壳(6)中并且各形成轴承轨道，所述预张紧元件由回弹材料制成并且布置在外壳(6)的一个径向部(6c)和一个轴承元件(8)之间。预张紧元件(9)装配在第一环(3)的外壳(6)中，与第二环(2)形成摩擦接触，用以在一个环相对于另一个旋转时施加抵抗转矩。

Scroll fluid machine

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Rotary screw compressor with friction balancing means using different pressure levels and method of operation

Device for reducing axial thrust in screw compressor

Vane type device having stationary and rotary cylinder members

一种具有静止和旋转缸部件的叶片式设备被用作驱动或工作设备，可压缩或不可压缩介质作为工作流体。叶片式设备基本实施例包括静止缸部件(A)、旋转缸部件(B)、转子(C)、端盖(D)和带凹槽的叶片(F)。静止缸部件具有使转子和叶片在其内旋转的套管(1)。套管具有供介质进出的径向矩形开口(5和6)，开口也可为其它形状。滚子或滑动轴承的内圈(8)被叶片驱动旋转。转子相对于套筒轴线偏心放置。转子上稳固地装有与转子共同旋转的侧向板(14)。叶片式设备的工作腔由套管、内圈、叶片和板限定。所述设备被更佳注入和排出工作介质，容积效率被提高，密封更高效。接触表面间的摩擦引起的损失减小，因此提高了设备机械效率。

Positive displacement machine

压排机尤其是被指定用作泵,它具有一个成型于一个外壳(1)内的、通过两个端壁(3,4)和一个套筒(5)限定出其边界的且工作介质可通过一个入口(6)和一个出口(7)进出其中的工作腔(2)。至少一个活动安装在外壳内的转子(8)分隔开所述工作腔,而一个用于控制转子的导向驱动机构(10)与一个位于工作腔外的驱动装置(11)相连。本发明的任务是提供一种可以以低于已知这类压排机的成本和重量生产所述压排机,并且它尤其是可以无需特殊的轴承润滑剂地工作。如此完成上述任务,即转子至少部分地支承在工作腔中,工作介质可接触到装在工作腔内的轴承(16,17),所述轴承被设计成陶瓷滚动轴承,由此可以无需润滑剂地驱动压排机工作。因而,实际上排除了工作介质被润滑剂污染。

COMPRESSOR

1. Компрессор, содержащий:коленчатый вал, содержащий первый конец, второй конец и маслоподающий канал, проходящий через первый и второй концы;подшипник, поддерживающий с возможностью вращения второй конец коленчатого вала;маслоотстойник, расположенный вблизи второго конца коленчатого вала;масляный насос, содержащий масловпускное отверстие, масловыпускное отверстие, маслоприемную камеру и разгрузочную камеру для масла, причем масловпускное отверстие расположено ниже уровня масла в маслоотстойнике и гидравлически сообщается с маслоприемной камерой, и разгрузочная камера для масла гидравлически сообщается с маслоподающим каналом через масловыпускное отверстие; ипатрубок для уравновешивания давления, обеспечивающий гидравлическое сообщение между пространством над уровнем масла в маслоотстойнике и маслоприемной камерой.2. Компрессор по п.1, отличающийся тем, что патрубок для уравновешивания давления расположен снаружи масляного насоса и коленчатого вала.3. Компрессор по п.1, отличающийся тем, что дополнительно содержит:нижний подшипниковый узел, причем его верхняя часть образует подшипник, а его нижняя часть, продолжаясь, образует корпус масляного насоса;рабочее колесо в сборе, содержащее верхнюю секцию для прикрепления ко второму концу коленчатого вала таким образом, чтобы рабочее колесо в сборе вращалось совместно с коленчатым валом, нижнюю секцию для образования рабочего колеса, а также среднюю секцию, расположенную между верхней и нижней секциями, причем маслоприемная камера ограничена пространством между наружной периферийной поверхностью средней секции рабочего колеса в сборе и внутренней � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2013 147 700 A (51) МПК F04B 39/02 (2006.01) F04C 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2013147700/06, 30.03.2012 (71) Заявитель(и): ЭМЕРСОН КЛАЙМИТ ТЕКНОЛОДЖИЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 31.03.2011 CN 201110089527.2; 31.03.2011 CN ...

Compressor bearing

Screw pump

The invention relates to a screw pump comprising a pump housing in which a pump spindle is rotatably mounted with the involvement of a hydrostatic thrust bearing for absorbing the axial thrust which is produced at the spindle during operation, the hydrostatic thrust bearing being formed by a housing-fixed bearing surface, against which an end-face, spindle-fixed bearing surface of the pump spindle is indirectly supported, by virtue of the fact that the housing-fixed bearing surface and the spindle-fixed bearing surface form a bearing gap therebetween, which bearing gap is fed, in its central region, with a pressure fluid which flows out through the bearing gap in the radial direction, preferably into the intake region, and the hydrostatic pressure of which counteracts the axial thrust.

Hydraulic screw machine

Method and apparatus for managing fluid flow within a screw pump system

In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process fluid from the inlet chambers to an outlet chamber located between the inlet chambers, wherein the process fluid in the outlet chambers is at an outlet pressure. The process fluid is directed from the outlet chamber to a separator configured to separate particulate matter from the process fluid, and a portion of separated process fluid is directed from the separator to a gear chamber of the pump. Pump bearings are lubricated with the portion of separated process fluid from the gear chamber. Some of the portion of the separated process fluid from the pump bearing is leaked to the inlet chambers via rotor shrouds to reduce accumulation of particulate matter in the inlet chambers. A pump system and a method for operating a pump system are disclosed.

Method and apparatus for managing fluid flow within a screw pump system

In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process fluid from the inlet chambers to an outlet chamber located between the inlet chambers, wherein the process fluid in the outlet chambers is at an outlet pressure. The process fluid is directed from the outlet chamber to a separator configured to separate particulate matter from the process fluid, and a portion of separated process fluid is directed from the separator to a gear chamber of the pump. Pump bearings are lubricated with the portion of separated process fluid from the gear chamber. Some of the portion of the separated process fluid from the pump bearing is leaked to the inlet chambers via rotor shrouds to reduce accumulation of particulate matter in the inlet chambers.

Method and apparatus for managing fluid flow within a screw pump system

In a pump system, a process fluid is directed into inlet chambers of a pump casing at an inlet pressure, and a plurality of rotors disposed inside the pump casing are rotated to pump the process fluid from the inlet chambers to an outlet chamber located between the inlet chambers, wherein the process fluid in the outlet chambers is at an outlet pressure. The process fluid is directed from the outlet chamber to a separator configured to separate particulate matter from the process fluid, and a portion of separated process fluid is directed from the separator to a gear chamber of the pump. Pump bearings are lubricated with the portion of separated process fluid from the gear chamber. Some of the portion of the separated process fluid from the pump bearing is leaked to the inlet chambers via rotor shrouds to reduce accumulation of particulate matter in the inlet chambers. A Pump system and a method for operating a pump system are disclosed.

Method and apparatus for managing fluid flow within a screw pump system

在一种泵系统中，在入口压力下将工艺流体引入泵壳体的入口室，并旋转设置在泵壳体内的多个转子从而将工艺流体从入口室泵送至位于入口室之间的出口室，其中出口室中的工艺流体处于出口压力下。工艺流体被从出口室引向分离器，分离器构造成从工艺流体分离颗粒物质，并且一部分分离的工艺流体被从分离器引向泵的齿轮室。用来自齿轮室的该部分分离的工艺流体润滑泵轴承。来自泵轴承的该部分分离的工艺流体的其中一些经由转子护罩泄漏至入口室，以减少入口室中颗粒物质的积聚。公开了一种泵系统和一种用于操作泵系统的方法。

Method and apparatus for managing fluid flow within a screw pump system

For managing the method and apparatus of the fluid stream in screw pump system

在一种泵系统中，在入口压力下将工艺流体引入泵壳体的入口室，并旋转设置在泵壳体内的多个转子从而将工艺流体从入口室泵送至位于入口室之间的出口室，其中出口室中的工艺流体处于出口压力下。工艺流体被从出口室引向分离器，分离器构造成从工艺流体分离颗粒物质，并且一部分分离的工艺流体被从分离器引向泵的齿轮室。用来自齿轮室的该部分分离的工艺流体润滑泵轴承。来自泵轴承的该部分分离的工艺流体的其中一些经由转子护罩泄漏至入口室，以减少入口室中颗粒物质的积聚。公开了一种泵系统和一种用于操作泵系统的方法。

Actuators for compressor elements and water-injecting compressor devices having such actuators

압축기 요소(3)를 위한 구동기로서, 상기 구동기(2)는, 모터 챔버(14)를 한정하는 모터 하우징(13)을 갖는 전기 모터(12)를 포함하고, 모터 챔버(14) 내부에, 모터 로터(15)가, 모터 스테이터(19)에 관하여 하나 이상의 모터 베어링(16)의 도움으로 회전 가능하게 배치되고, 모터 스테이터(19)는, 권선(21)이 그 둘레에 부착되는 적층체(20)로 구성되며, 그리고 모터 로터(15)는, 적층체(18)를 갖는 샤프트(17)로 구성되고, 구동기(2)는, 냉각제를 위한 냉각 회로(24)를 더 구비하는 것인, 구동기에 있어서, 상기 냉각제는 물이고, 상기 모터 베어링들(16)은 물에 의해 윤활되며, 상기 모터 로터(15) 상의 상기 샤프트(17)는 스테인리스 스틸로 이루어지고, 상기 권선(21)은 에폭시 수지(22) 내에 매립되며, 그리고 복합재 슬리브(23)가, 상기 모터 로터(15) 상의 그리고 상기 모터 스테이터(19) 상의 각각의 적층체(18, 20) 둘레에 적용되는 것을 특징으로 하는 구동기가 제공된다.

A rotary displacement pump with space-saver radial and a heart prosthesis including the same

본 발명에 따르면, 회전 펌프는 다람쥐장의 형태로 형성되고 내부 치(16)를 갖는 외부 기어(13) 및 상기 외부 기어(13)의 내부에서 중심을 벗어난 방식으로 수용되는 내부 기어(9)로 구성된다. 상기 내부 기어(9)는 상기 내부 치(16)와 서로 맞물리는 외부 치(9D)에 의해 끼워 맞춰지고, 상기 외부 치는 상기 내부 치의 치 개수에 대하여 한 자리수 아래의 치 개수로 구성된다. 상기 외부 기어(13)의 회전 수단은 상기한 외부 기어(13)의 플랜지 단부(14, 15)의 중심에 설계되는 적어도 하나의 베어링(11, 12)을 포함하며, 상기한 외부 기어(13)는 내부 기어(9)를 도입시키기 위하여 적어도 부분적으로 해체된다. 회전변위펌프, 외부기어, 내부기어, 치, 회전수단, 심장보철물, 엑추에이터 According to the invention, the rotary pump consists of an outer gear 13 formed in the form of a squirrel field and having an inner tooth 16 and an inner gear 9 accommodated in an off-centered manner inside the outer gear 13. do. The inner gear 9 is fitted by an outer tooth 9D which meshes with the inner tooth 16, and the outer tooth consists of a number of teeth one digit below the number of teeth of the inner tooth. The rotating means of the outer gear 13 comprises at least one bearing 11, 12 designed in the center of the flange ends 14, 15 of the outer gear 13, the outer gear 13 being described above. Is at least partly dismantled to introduce the internal gear 9. Rotary displacement pump, external gear, internal gear, tooth, rotation means, heart prosthesis, actuator

Screw compressor

本发明提供一种螺杆压缩机，其具有：多个螺杆转子；分别以可旋转的方式支承多个螺杆转子的吸入侧的多个吸入侧轴承和分别以可旋转的方式支承多个螺杆转子的排出侧的多个排出侧轴承；和收纳多个螺杆转子、多个吸入侧轴承、多个排出侧轴承的壳体。各螺杆转子具有：形成有多个齿的齿部；和分别设置在齿部的两端部的吸入侧轴部和排出侧轴部。壳体具有：收纳多个螺杆转子的齿部的收纳室；和对多个吸入侧轴承进行润滑的液体所流通的润滑通路。润滑通路中，将对多个吸入侧轴承分别进行润滑的各通路串联连接，并且最下游部分与收纳室连接。

SCREW COMPRESSOR WITH INJECTION FLUID

1. Винтовой компрессор с впрыском текучей среды, содержащий два взаимодействующих ротора (2, 3), опирающихся в радиальном и в осевом направлении на корпус (1), образующий роторную камеру (4), в которой расположены два ротора (2, 3), снабженный гидросистемой (11) для циркуляции и впрыска текучей среды, отличающийся тем, что ! радиальная опора, по меньшей мере, одного ротора образована за счет контакта данного ротора с участком стенки корпуса, противоположной внешнему контуру данного ротора, и/или за счет взаимодействия с другим ротором и посредством максимум одной дополнительной радиальной опоры. ! 2. Винтовой компрессор по п.1, отличающийся тем, что, по меньшей мере, один из вышеуказанных роторов (2 и/или 3) не имеет дополнительных радиальных опор. ! 3. Винтовой компрессор по п.1 или 2, отличающийся тем, что осевая опора, по меньшей мере, одного ротора образована только за счет контакта между торцевой поверхностью данного ротора (2 и/или 3) и противоположной частью стенки корпуса (1) без использования дополнительной осевой опоры. ! 4. Винтовой компрессор по п.1 или 2, отличающийся тем, что, по меньшей мере, один ротор (2 и/или 3), по меньшей мере, на одном или обоих осевых концах ротора не имеет цапфы (14-15), смонтированной на опоре. ! 5. Винтовой компрессор по п.1 или 2, отличающийся тем, что содержит средства для ограничения трения между взаимодействующими роторами (2 и 3) и/или между роторами (2 и 3) и корпусом (1). ! 6. Винтовой компрессор по п.5, отличающийся тем, что вышеуказанные средства для ограничения трения содержат твердое, почти не имеющее трения покрытие, покрывающее, по меньшей мере, часть поверхности одного или обоих роторов (2 и/или 3) и/или, � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 153 241 (13) A (51) МПК F01C 21/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) (21)(22) Заявка: 2010153241/06, 15.05.2009 Приоритет(ы): (30) Конвенционный ...

Positive-displacement rotary pump of small radial sizes

FIELD: engines and pumps. SUBSTANCE: proposed pump consists of squirrel-cage outer gear wheel 13 with multiple inner gears 16 and inner gear wheel 9 fitted shifted relative to the center of and inside said outer gear wheel 13 and furnished with multiple outer teeth in mesh with inner teeth 16. Said gear wheel 9 has the number of teeth smaller by one than that of gear wheel 13. Drive rotating multiple outer teeth 13 comprises bearings 11 fitted at the center of flanges of faces 14, 15 of outer gear wheel 13. The latter can be partially knocked down for inner gear wheel 9 to be fitted therein. EFFECT: reduced radial sizes, possibility to fit inner gear wheel into remove from outer gear wheel. 9 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 396 461 (13) C2 (51) МПК F04C 2/10 (2006.01) A61M 1/12 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008144573/06, 07.05.2007 (24) Дата начала отсчета срока действия патента: 07.05.2007 (73) Патентообладатель(и): КАРМА (FR) (45) Опубликовано: 10.08.2010 Бюл. № 22 2 3 9 6 4 6 1 (56) Список документов, цитированных в отчете о поиске: FR 2760973 A1, 25.09.1998. RU 53372 U1, 10.05.2006. EP 0560709 A2, 15.09.1993. DE 3709901 A1, 06.10.1988. DE 8121531 U1, 10.10.1985. EP 0324669 A1, 19.07.1989. (85) Дата перевода заявки PCT на национальную фазу: 11.11.2008 2 3 9 6 4 6 1 R U (87) Публикация PCT: WO 2007/135261 (29.11.2007) C 2 C 2 (86) Заявка PCT: FR 2007/000778 (07.05.2007) 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) РОТОРНЫЙ ОБЪЕМНЫЙ НАСОС С МАЛЫМИ РАДИАЛЬНЫМИ РАЗМЕРАМИ (57) Реферат: Изобретение относится к роторному объемному насосу с малыми радиальными размерами. Роторный насос состоит из внешнего зубчатого колеса 13 с множеством внутренних зубьев 16 в виде беличьей клетки и внутреннего зубчатого колеса 9, размещенного со смещением ...

ROTARY VOLUMETRIC PUMP WITH REDUCED RADIAL SIZE

- Pompe volumétrique rotative à encombrement radial réduit.- Selon l'invention, la pompe volumétrique rotative comporte un engrenage extérieur (13) à denture interne (16), en forme de cage d'écureuil ; et un engrenage intérieur (9), logé de façon excentrée à l'intérieur dudit engrenage extérieur (13) et pourvu d'une denture externe (9D) engrenant avec ladite denture interne (16) et comportant un nombre de dents inférieur d'une unité au nombre de dents de cette dernière. Les moyens de rotation dudit engrenage extérieur (13) comportent au moins un palier (11, 12) agencé centralement dans un flasque d'extrémité (14, 15) dudit engrenage extérieur (13) ; et ledit engrenage extérieur (13) est au moins en partie démontable pour pouvoir y introduire ledit engrenage intérieur (9). - Rotating volumetric pump reduced radial size.- According to the invention, the rotary positive displacement pump comprises an outer gear (13) with internal teeth (16) in the form of a squirrel cage; and an inner gear (9), eccentrically housed within said outer gear (13) and provided with an external toothing (9D) meshing with said internal toothing (16) and having a lower number of teeth of a unit to the number of teeth of the latter. The rotation means of said external gear (13) comprise at least one bearing (11, 12) arranged centrally in an end flange (14, 15) of said external gear (13); and said outer gear (13) is at least partly removable for insertion of said inner gear (9).

Water jet compressor set for the actuator and outfit of the compressor element actuator

用于压缩机元件(3)的致动器，所述致动器(2)包括具有马达壳体(13)的电马达(12)，所述马达壳体(13)限定马达腔室(14)，马达转子(15)借助于一个或多个马达轴承(16)相对于马达定子(19)可旋转地定位在马达腔室(14)中，马达定子(19)由绕组(21)附接在其周围的叠片(20)构建，马达转子(15)由具有叠片(18)的轴(17)构建，致动器(2)还配备有用于冷却剂的冷却回路(24)，其特征在于，所述冷却剂是水，马达轴承(16)用水润滑，所述马达转子(15)上的轴(17)由不锈钢制成，前述绕组(21)嵌入环氧树脂(22)中，并且复合套筒(23)应用在马达转子(15)上和马达定子(19)上的叠片(18、20)中的每一个叠片周围。