СИСТЕМА СМАЗКИ

Группа изобретений относится к системе смазки жираторной дробилки, способу ее смазки, жираторной дробилке, содержащей такую систему смазки, и установке для обработки минерального материала с вышеуказанной дробилкой. Система смазки содержит упорный подшипник, смазочный и регулирующий поршень, выполненный с возможностью перемещения в цилиндре. При этом поршень содержит первое пространство, выполненное с возможностью приема жидкости и непрерывного пропускания жидкости к упорному подшипнику, а между цилиндром и поршнем образовано второе пространство, выполненное с возможностью приема и удержания жидкости. Система выполнена с возможностью в ответ на обнаружение перемещения поршня в направлении вниз пропускания жидкости в первое пространство, а в ответ на увеличение давления во втором пространстве - пропускания жидкости из второго пространства в первое пространство. Способ смазки заключается в том, что подают жидкость в первое пространство и непрерывно пропускают жидкость из первого пространства ...

ВИНТОВАЯ КОМПРЕССОРНАЯ УСТАНОВКА

Изобретение относится к винтовой компрессорной установке, предназначенной для компримирования углеводородных газов. Система маслообеспечения установки содержит линию возврата масла 22 в маслоотделитель 8 с установленным на ней регулирующим клапаном 23. Клапан 23 выполнен с возможностью производить автоматическое регулирование величины сброса масла в линию 22 по показаниям средства измерений 7 температуры газомасляной смеси, установленного на трубопроводе нагнетания 6 перед маслоотделителем 8. Масляные насосы 13 установлены в начале двух раздельных линий подачи масла к компрессору 2. По линии 24 масло подается в рабочую полость 3 компрессора 2, а по линии 25 - к подшипникам, уплотнениям 4 и гидроцилиндру 5 золотникового клапана компрессора 2. На линии 24 установлены средства измерений 32 давления, температуры и индикатор расхода 29, запорно-регулирующая арматура, редукционный предохранительный клапан 28. На линии 25 подачи масла к подшипникам, уплотнениям 4 и гидроцилиндру 5 установлен индикатор ...

МАСЛЯНЫЙ КОНТУР И БЕЗМАСЛЯНЫЙ КОМПРЕССОР, СНАБЖЕННЫЙ ТАКИМ МАСЛЯНЫМ КОНТУРОМ, И СПОСОБ УПРАВЛЕНИЯ СМАЗКОЙ И/ИЛИ ОХЛАЖДЕНИЕМ ТАКОГО БЕЗМАСЛЯНОГО КОМПРЕССОРА ПОСРЕДСТВОМ ТАКОГО МАСЛЯНОГО КОНТУРА

Группа изобретений относится к масляному контуру и безмасляному компрессору, снабженному таким масляным контуром, и способу управления смазкой и/или охлаждением такого безмасляного компрессора посредством такого масляного контура. Более конкретно, изобретение предназначено для обеспечения масляного контура для улучшенного способа управления смазкой и/или охлаждением безмасляного компрессора, содержащего двигатель с регулируемой частотой вращения или скоростью, то есть с управлением приводом с регулируемой скоростью посредством этого улучшенного масляного контура. 3 н. и 25 з.п. ф-лы, 7 ил.

ROTATIONSKOLBENMASCHINE IN SPIRALBAUWEISE

Oil-overflow screw compressor, has oil pump with functional units that are connected with free shaft end of shaft extension of respective rotor, and has housing that is arranged in intermediate housing limited at cylindrical form of lane

The compressor has a main rotor (2) with convex tooth flanks and an auxiliary rotor (3) with concave flank sections, where one of the rotors has a drive shaft end on suction side or on pressure side. The rotors are enclosed by housing parts, and an oil pump (4) is arranged completely in the housing at a storage rack/lane of a sliding bearing of the rotors. Functional units of the pump are connected with a free shaft end of shaft extension (8) of the respective rotor. The pump has the housing that is arranged in an intermediate housing, which is limited at a cylindrical form of the rack/lane.

ROTARY-PISTON VACUUM PUMP

... 1,203,247. Rotary-piston vacuum pumps. LEYBOLD-HOCHVAKUUM-ANLAGEN G.m.b.H. Oct.3, 1967 [Oct.29, 1966], No.44931/67. Heading F1F. A rotary-piston vacuum pump comprises a hypotrochoidal piston 14, elliptical when the transmission of gearing between the drive motor 12 and pump is 1:2, planetarily rotatable within a casing 10 having an inner periphery which is that of the envelope curve of the piston and includes oilconveying channels in the piston and its end-faces and means for circulating the oil. Oil from a sump (not shown) passes through a filter 52 and is circulated by a pump 30 via an axial bore 34 in the pump drive-shaft 18 to junctions 36, 40, 44 from whence it flows radially and axially through ducts in the piston and its end-faces to lubricate between the shaft 18 and a fixed pinion bore, the teeth of the pinion and co-operating ring gear teeth, the end-faces between the piston and casing and the eccentric on which the piston rotates. Excess oil is returned to sump through channels ...

ROTARY POSITIVE-DISPLACEMENT PUMP

... 1,248,685. Rotary positive-displacement pumps. ALFRED TEVES G.m.b.H. Feb.5, 1969 [Feb.9, 1968], No.6156/69. Heading F1F. In a double-acting pump of the outwardly-sliding vane type an auxiliary pump 13 of the internallymeshing gear-type is driven by a shaft 19 of the rotor 1 and by way of channels 11, 12, 35 and chambers 10 applies pressure to the radiallyinnermost ends of the vanes 2 while the latter are in the low-pressure regions of spaces between the rotor and a stator 5. When the vanes are in the high-pressure regions they are loaded by pressure transmitted from an outlet, or pressure, chamber 9 through bores 8 and chambers 71, 711. A spring-loaded plate 20 acts as a pressurelimiting valve, a suction aperture 23 in this plate being connected to a main inlet 32 by way of a channel 33. Fluid in the channels 35 lubricates the shaft 19.

Rotating engine

ROTARY POSITIVE-DISPLACEMENT FLUIDMACHINES

COOLING COMPRESSOR WITH SPIRALS OF VARIABLE SPEED

Vakuumpume

Lubrication system

A mineral material processing plant, a crusher, a lubrication method and system, the system comprising a thrust bearing (15), a lubrication piston and adjusting piston (25) arranged to be movable in a cylinder (20); wherein the piston (25) comprises a first space (30) configured to receive fluid and to continuously conduct the fluid to the thrust bearing (15); the cylinder (20) and the piston (25) define therebetween a second space (40) configured to receive and hold fluid; and the system is configured to in response to detecting a downward movement of the piston (25) to conduct fluid to the first space (30).

HYDRODYNAMIC THRUST BEARING ARRANGEMENT HYDRODYNAMIC THRUST BEARING ARRANGEMENT

HORIZONTAL TWO STAGE ROTARY COMPRESSOR

A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are rotatably mounted on the shaft with one compression mechanism being located adjacent a first end of the rotor, and one compression mechanism being located adjacent a second end of the rotor. The compression mechanisms are operatively associated with the rotor such that rotation of the rotor drives the compression mechanisms. A fluid flow path is defined in the compressor including a plurality of longitudinal bores formed in the stationary shaft. A mounting assembly is attached to the housing so as to mount the compressor in either a substantially horizontal or vertical orientation. The pump is positioned so as to be at least partially immersed in an oil sump in the housing when the compressor in either orientation.

HORIZONTAL TWO STAGE ROTARY COMPRESSOR

A hermetic two stage rotary compressor having a housing with a stationary shaft fixedly mounted in the housing. A motor having a rotor and a stator is mounted in the housing with the rotor being rotatably mounted on the shaft. A pair of compression mechanisms are rotatably mounted on the shaft with one compression mechanism being located adjacent a first end of the rotor, and one compression mechanism being located adjacent a second end of the rotor. The compression mechanisms are operatively associated with the rotor such that rotation of the rotor drives the compression mechanisms. A fluid flow path is defined in the compressor including a plurality of longitudinal bores formed in the stationary shaft. A mounting assembly is attached to the housing so as to mount the compressor in either a substantially horizontal or vertical orientation. The pump is positioned so as to be at least partially immersed in an oil sump in the housing when the compressor in either orientation.

ROTARY COMPRESSOR

A rotary, sliding vane compressor is provided with means for supplying a relatively small, predetermined quantity of an incompressible fluid, such as lubricating oil, underneath the vanes. The fluid is injected at a point while the vanes are collapsing within the vane pockets formed within the rotor and is trapped underneath the vane during its movement to the contact point thereby resisting the collapse of the vane so as to hold the vane tip in continuous engagement with the stator surface in the compression cavity. The means for supplying the fluid underneath said vanes includes a device for interrupting flow of lubricant from a sump to the interior of the compressor housing thereby controlling or metering the lubricant and also preventing reverse rotation of the compressor rotor caused by oil pressure under the vanes forcing the vane tips to follow the curvature of the cylinder wall in a backward direction. Means are also provided for relieving the suction created when the vanes move ...

POSITIVE DISPLACEMENT SPIRAL VACUUM PUMP

HORIZONTAL SCROLL COMPRESSOR

A horizontal scroll-type compressor (10) is provided with an oil injection fitting (80) that extends through the compressor shell (12) and communicates lubricating oil to a lubrication passage in the crankshaft (40, 41) for providing lubricant to the compressor and other components. The oil injection fitting is supplied with lubricant from an externally disposed source.

HORIZONTAL TWO STAGE ROTARY COMPRESSOR WITH IMPROVED LUBRICATION STRUCTURE

A hermetic rotary compressor including a housing having an oil sump formed therein; a stationary shaft fixedly mounted in the housing, a longitudinal bore formed in the shaft; and a motor mounted in the housing, the motor having a rotor and a stator, the rotor having a first and second end and being rotatably mounted on the shaft. A pair of compression mechanisms is rotatably mounted on the shaft, the compression mechanisms rotatably coupled to the rotor and lubricated with oil conducted through the longitudinal bore each of the compression mechanism has an outboard bearing rotatably mounted on the shaft, and an oil pump in fluid communication with the longitudinal bore is also mounted on the stationary shaft, the pump operatively engaged with one of the outboard bearings. The oil pump is actuated by rotation of one of the outboard bearings, and oil is pumped from the sump into the longitudinal bore by the oil pump.

ROTARY VANE COMPRESSOR WITH REDUCED PRESSURE ON THE INNER VANE TIPS

In a rotary vane hermetic compressor an improved loading structure is provided for the vanes. A pressure reducing means incorporated into the compressor rotor reduces the frictional loading of the vane tips against the compressor walls. A passageway vents fluid at suction pressure into a cavity in the rotor containing the inner tips of the sliding vanes.

POSITIVE DISPLACEMENT PUMP

A compressor assembly including a compression mechanism, a rotating cranksha ft operably coupled to the compression mechanism, the crankshaft provided with a longitudinally-extending oil conveyance passageway, the oil conveyance passageway in fluid communication with relatively moving interfacing bearing surfaces of the compression mechanism, and an oil pump assembly. The oil pump assembly includes an oil pump body having an interior surface and being rotatable relative to the crankshaft, a vane disposed within the pump body and rotating with the crankshaft, the vane having at least one end in sliding engagement with the interior surface of the oil pump body, and a por t plate disposed within the pump body and having rotatably opposite first and second position s. The vane is in sliding engagement with an adjacent surface of the port plate, and the po rt plate is provided with an inlet and an outlet. The pump body receives oil from a source of oil , the oil received in the pump body directed ...

STEPPED ANNULAR INTERMEDIATE PRESSURE CHAMBER FOR AXIAL COMPLIANCE IN A SCROLL COMPRESSOR

A scroll compressor having a suction pressure chamber into which fluid is received substantially at suction pressure and a discharge pressure chamber from which the fluid is discharged substantially at discharge pressure, including a first scroll member having a first involute wrap element projecting from a first substantially planar surface, a second scroll member having a second involute wrap element projecting from a second substantially planar surface, and third and fourth surfaces opposite the second substantially planar surface, the third and fourth surfaces respectively located in first and second planes which are spaced apart from each other and substantially parallel with the second substantially planar surface. The first and second scroll members are mutually engaged with the first involute wrap element projecting towards the second surface and the second involute wrap element projecting towards the first surface, the first surface positioned substantially parallel with the second ...

OLDHAM COUPLING FOR A SCROLL COMPRESSOR

A scroll compressor including a fixed scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a first pair of offset, parallel elongate recesses, and an orbiting scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a second pair of offset, parallel elongate recesses, the first and second pairs of recesse s aligned in substantially perpendicular directions, the fixed and orbiting scroll member s mutually engaged. An Oldham coupling is disposed in a first plane located between and substantially parallel with the substantially planar surfaces, the Oldham coupling having a first pair of axially extending tabs slidably engaged in the first pair of recesses and a second pair of axially extending tabs slidably engaged in the second pair of recesses, whereby relative rotation between the fixed and orbiting scroll members is prevented. The Oldham coupling has an outer ...

Einrichtung zur Sicherung der Schmierung von Drehkolbenverdichtern, bei denen die Trennung des Schmiermittels vom geförderten Mittel in einem Abscheider erfolgt, der mit den zu schmierenden Stellen des Verdichters in Verbindung steht.

Drehkolbenverdichter.

Dispositif compresseur

Einrichtung zur Sicherung der Schmierung von Drehkolbenverdichtern.

POMPE A VIDE INTEGRALEMENT SECHE ET ETANCHE.

Verfahren zur Verdichtung eines Arbeitsmittels in einer Vielzellen-Drehkolbenmaschine

Rotationskolbenvakuumpumpe

Fluid pump and rotary machine having said fluid pump

HERMETIC COMPRESSOR HAS HORIZONTAL CRANKSHAFT

Vacuum pump for vehicle brake amplifying servomechanism comprises pumping part driven by rotor shaft and lubricant supply channel which discharges into annular groove in shaft bearing surface wall

... a) Le but de l'invention est de proposer une pompe à vide de réalisation peu coûteuse. b) Pompe à vide (1) pour un servomécanisme d'entraînement dans un véhicule à moteur, comportant un organe de pompage qui peut être entraîné par un arbre de rotor (8) pouvant être entraîné en rotation, comportant aussi un canal d'alimentation en fluide lubrifiant (15) qui peut être alimenté par l'intermédiaire d'un système de lubrification du véhicule à moteur, caractérisée par le fait que le canal d'alimentation en fluide lubrifiant (15) débouche dans une rainure annulaire (24) qui est située entre l'arbre de rotor et la paroi de l'alésage formant portée de l'arbre, et qui est reliée à l'organe de pompage (5) par l'intermédiaire d'un canal de liaison (25), que dans le canal d'alimentation en fluide lubrifiant (15) se situe un point d'étranglement (19) et qu'à la rainure annulaire (24) soit relié un canal de retour du fluide lubrifiant (26). c) L'invention concerne une pompe à vide pour un servomécanisme ...

OIL SUPPLYING DEVICE OF A ROTARY COMPRESSOR

SISTEMA DE LUBRIFICACAO APERFEICOADO PARA COMPRESSORES DE PISTAO ROTATIVO

circuito de óleo e compressor isento de óleo dotado de tal circuito de óleo

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.

Reverse drive oil pump

Lubricant is pumped into a lubrication system by an oil pump. Preferably the lubricant is drawn into the pump from an unagitated source. An eccentric pump rotor is received on the crankshaft and has a circumferentially extending recess. A radially extending drive pin is secured in the crankshaft and coacts with the ends of the recess to position the rotor in accordance with the direction of rotation of the shaft.

Oil pump for a scroll compressor

An oil pump for a compressor includes a driving shaft having an oil passage, a gear driving unit coupled to the drive shaft, a pump body having a driving shaft insertion groove, a friction reducing member assembled on the driving shaft insertion groove to reduce friction between the driving shaft and pump body, and a a gear unit coupled to the pump body and rotating with rotation of the driving shaft. The pump may further include a pump cover coupled to the pump body and having an intake for inhaling oil.

Engine oil pump with reduced noise and vibration

An oil pump includes a pump housing comprising an oil input port formed at one side of the pump housing. An oil output port is formed at another side of the pump housing. An oil flow unit is provided at a center of the pump housing, and the oil flow unit compresses and discharges oil input from the oil input port toward the oil output port. A bypass passage circulates the oil from the oil output port to the oil input port. A pressure control chamber allows the oil to flow through the oil output port and the bypass passage. The pressure control chamber has a plunger that is supported by an elastic body and moves in accordance with oil pressure. A bypass hole is formed at one side of the pressure control chamber and allows the oil passing through the oil output port to flow to the bypass passage when the plunger moves due to the oil pressure. The amount of oil flow increases depending on a movement distance of the plunger.

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Scroll compressor

A compression chamber of a scroll compression element driven by a crank shaft of an electromotive element and stored in an upper portion of a closed container is formed by engaging spiral laps formed on the mirror plates of a fixed scroll member and an orbiting scroll member with each other, a bush portion having an engagement hole to be engaged with an upper end portion of the crank shaft is formed in a central axis portion of the under surface of the mirror plate of the orbiting scroll member, a space formed between the engagement hole of the bush portion and the upper end portion of the crank shaft serves as an oil input port, lubricating oil which is stored in an oil reservoir in an inner bottom portion of the closed container and goes up through an oil passage formed within the crank shaft by an oil pump unit is supplied from the oil input port into the compression chamber, oil injection communication passages communicating with the compression chamber from the oil input port are formed ...

HORIZONTAL SCROLL COMPRESSOR

A horizontal scroll-type compressor (10) is provided with an oil injection fitting (80) that extends through the compressor shell (12) and communicates lubricating oil to a lubrication passage in the crankshaft (40, 41) for providing lubricant to the compressor and other components. The oil injection fitting is supplied with lubricant from an externally disposed source.

SCROLL COMPRESSOR

PROBLEM TO BE SOLVED: To provide a scroll compressor which prevents excessive supply of oil to a compression part of the compressor, and improves volumetric efficiency. SOLUTION: In a scroll compressor, an oil discharge passage 67 is formed on a crankshaft 61 for discharging the oil passing an oil groove 62 formed on the crankshaft 61 to the outside of the crankshaft 61. A bypass means is arranged on the oil discharge passage 67 for opening and closing the passage 67 due to centrifugal force generated by the rotation of the crankshaft 61. A part of the oil passing the oil groove 62 of the crankshaft 61 is flowed outside the crankshaft 61 and returned to an oil storing bath 65 during high speed rotation of the compressor. COPYRIGHT: (C)2000,JPO ...

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 ...

TROCKENVERDICHTENDE SCHRAUBENSPINDELPUMPE

Ölgedichtete Drehschiebervakuumpumpe mit Ölpumpe

The invention concerns an oil-sealed vane-type rotary vacuum pump (1) with a rotor (3) and an oil pump (45, 46) whose suction chamber is fitted with feeds (64, 65) for gas and oil. In order to simplify the supply of a gas/oil mixture to the vacuum pump, the invention proposes that the gas and oil feeds (34, 35) are disposed in such a way that initially only oil and subsequently both oil and air are aspirated into the volume swept by the oil pump (45, 46) as it rotates.

REFRIGERANT COMPRESSOR

HERMETISCHER NIEDERDRUCK-VERDICHTER MIT WALZKOLBEN.

Hermetischer Niederdruck-Verdichter mit Walzkolben.

Rotating engine

A rotating engine has a housing 1 rotating about a fixed centre x. The engine may be a Wankel engine and have a mainshaft 2 and a rotor 3 rotating about a fixed centre y. The mainshaft may be stationary and a segment 5 positioned between phasing gears 4 may cause the phasing gears to act as a pump for lubricating the rotor and its seals. Passages 7 allow the ingress and egress of fluids.

Improvements in rotary blowers

... 425,636. Rotary blowers. HAYDOCK, J., Dunsley, Four Lanes End, Blackburn, and SHORROCK, C., Thornfield, Garstang Road, Preston. Dec. 11, 1933, No. 34830. [Class 110(ii)] A blower which has a number of vanes supported upon bearings mounted upon a stub shaft 11, is provided with a pump 17 which supplies lubricant to the blower by way of conduits 18, 21, and radial passages 24. A rotor 25 is driven by a shaft 28 which also drives the pump shaft 19 by means of toothed reduction gearing 30. The Provisional Specification refers to Specification 411,249.

Improvements in rotary compressor

... 804,154. Rotary pumps. GENERAL ELECTRIC CO. April 8, 1957 [April 16, 1956], No. 11357/57. Class 110 (2). In a hermetically sealed rotary compressor of the outwardly-sliding abutment type, means are provided for lubricating the shaft bearing 8 and for preventing leakage of high pressure gas thereto. Oil from a reservoir 24 is centrifugally fed through passages 25, 26, 28 to the bearing and is re-circulated by way of a passage 40 and a subsidiary reservoir 32. The abutment 14 is provided with an oil groove 42 which is adapted to register with and receive oil from a passage 43a communicating with the reservoir 32. High pressure gas leaking along the sides of the rotor is bled off through grooves 35, 36 and passages 37, 38, 39 into the main portion of the casing through a vent (not shown) in the upper portion of the shaft 7.

Lubricating oil pump for vehicle engines

The pump comprises an internally-toothed gear outer gear (3) meshing with an externally-toothed inner gear (4) in a chamber (5) formed by a housing (1) and a cover (2). A crescent-shaped piece (7) fills the space between the gears. The housing has a suction pocket (8) and a pressure pocket (9) separated from each other by a web (10). The cover has an annular groove (23) and the inner gear is provided on an inner bearing surface (17) with a chamfer (21) which in conjunction with the housing forms an annular chamber (22), the said chamber and groove being fed with oil through a groove (25) in the pressure pocket and a groove (24) in the web, respectively. The oil in the said groove and chamber reduce friction and obviate ingression of air. Recesses (27 to 30), Fig. 3 (not shown), may be formed in the housing and the cover to further reduce friction. ...

Lubricant delivery within a vacuum pump

SPIRAL COMPRESSOR WITH OIL SEPARATOR

SPIRAL REFRIGERANT COMPRESSOR

HERMETIC COMPRESSOR

HORIZONTAL ROTARY-TYPE COMPRESSOR

Scroll fluid machine

Provided is a scroll fluid machine in which the deformed shape of the surface of a main shaft frame fastened to a fixed scroll is made uniform, whereby the sealing performance thereof can be increased and compression performance thereof can be improved. The scroll fluid machine is characterized by comprising a scroll unit installed in a container, a main shaft frame which is fitted into the container, fastened to the fixed scroll by a fastening means at the outer peripheral section, and stores a movable scroll in the space formed between the main shaft frame itself and the fixed scroll, a refrigerant passage which is so provided as to extend through the fixed scroll and the main shaft frame at the outer peripheral section in the axial direction and to open to the rear surface of the main shaft frame, and guides the high-pressure refrigerant compressed and discharged by the scroll unit to the rear side of the main shaft frame, and a countersunk section formed at the opening peripheral edge ...

REFRIGERANT COMPRESSOR

A refrigerant compressor has a casing encasing a compressor section and a driving section including an electric motor. A crank shaft is driven by the electric motor and an oil pipe is connected at one end to an opening of an attaching base fixed to the bearing of the crank shaft, the other end of the pipe being immersed in the lubricating oil collected in the case, and the opening being substantially concentric with the crank shaft, which has a journal portion, an eccentric portion and a main shaft portion. The journal portion is rotatably supported by the bearing, which cooperates with the attaching base in defining an oil pressure chamber. A coiled spring is fixed at one end to one end of the crank shaft, the other end being immersed in the oil through the pipe and having a conical form.

COMPRESSOR ASSEMBLY

A compressor assembly has a compressor (e.g. a twin helical screw compressor 28) having an inlet (30) and an outlet (32). The compressor is driven by one of two rotary inputs (36, 38) which drive gear means (34) for stepping up the speed of the input. The gear means (34) comprises a planetary gear train which is very compact yet which allows the required step-up ratio to be achieved. The compressor assembly also circulates oil through an external path including cooling means (92) for dispersing heat from the flowing fluid. The circulating fluid also actuates a fluid-operated motor (86) which drives a fan (90) which generates an air current passing over the cooling means (92). A further fluid-operated motor (96) driving a second fan (98) may be provided to generate a current of air for a second cooling means (100) which may, for example, be for cooling the compressed air exiting the compressor.

HORIZONTAL SCROLL COMPRESSOR

The motion of the orbiting scroll is used to cause pumping of oil in a hermetic horizontal scroll compressor.

BEARING LUBRICATION SYSTEM FOR A SCROLL COMPRESSOR

A scroll compressor having a suction chamber into which fluid is received substantially at suction pressure and a discharge chamber from which the fluid is discharged substantially at discharge pressure, including mutually engaged fixed and orbiting scroll members, in fluid communication with the suction and discharge chambers, an intermediate pressure chamber defined in part by one of fixed and orbiting scroll members, an oil reservoir, an electric motor, and a shaft operably coupling the motor and the orbiting scroll member. The shaft is provided with a longitudinal passageway extending longitudinally therethrough, the longitudinal passageway in fluid communication with the oil reservoir and provided with oil therefrom. The shaft is provided with a first passage in fluid communication with the longitudinal passageway and which extends substantially laterally outward from the longitudinal passageway to a radially outer surface of the shaft. A roller is disposed about the shaft radially ...

OLDHAM COUPLING FOR A SCROLL COMPRESSOR

A scroll compressor including a fixed scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a first pair of offset, parallel elongate recesses, and an orbiting scroll member having a substantially planar surface and an involute wrap element projecting therefrom, and provided with a second pair of offset, parallel elongate recesses, the first and second pairs of recesses aligned in substantially perpendicular directions, the fixed and orbiting scroll members mutually engaged. An Oldham coupling is disposed in a first plane located between and substantially parallel with the substantially planar surfaces, the Oldham coupling having a first pair of axially extending tabs slidably engaged in the first pair of recesses and a second pair of axially extending tabs slidably engaged in the second pair of recesses, whereby relative rotation between the fixed and orbiting scroll members is prevented. The Oldham coupling has an outer ...

Screw compressor, compressor element and gearbox applied thereby

Rotary compressor

The invention provides a rotary compressor including an oiling mechanism that is capable of preventing deformation or diameter expansion of a countershaft portion of a rotating shaft. The rotary compressor includes an oiling mechanism that supplies lubricating oil retained in the lower part of a compressor housing to a sliding portion of a compressing unit through a vertical oil hole and a lateral oil hole of the rotating shaft, wherein the oiling mechanism includes: a vertical fitting hole formed on the countershaft portion in the lower part of the rotating shaft, and an oil pipe having an inlet port at the lower end and an opening at the upper end. The upper part of the oil pipe is press-fitted into the vertical fitting hole. The oiling mechanism further contains a pump vane being shaped like a long and thin plate and having a vane portion and a base portion. The vane portion is twisting processed and inserted into the vertical oil hole to provide a space. The base portion is formed to ...

Fluid compressor

Oil pump of scroll compressor

Eccentric rotation drive device

OIL INJECTION DEVICE FOR SCROLL-TYPE REFRIGERANT COMPRESSOR VARIABLE SPEED

COMPRESSOR HAS SPIRAL HAS CONNECTION Of DRIVE OLDHAM

SCROLL COMPRESSOR WITH AN ORBITAL DISC LUBRICATION SYSTEM

Le compresseur à spirales (1) comporte une volute fixe (7) ; une volute orbitante (8) ; un arbre d'entraînement (16); un agencement de support (5) comportant une surface de palier de butée (9) sur laquelle est montée coulissante la volute orbitante (8) ; un dispositif anti-rotation configuré pour empêcher la rotation de la volute orbitante (8) par rapport à la volute fixe (7), le dispositif anti-rotation comportant des disques orbitaux (28) agencés respectivement dans des trous de réception circulaires (29) prévus sur l'agencement de support (5), chaque disque orbital (28) étant pourvu d'une surface de palier circonférentielle extérieure (31) coopérant avec une surface de palier circonférentielle intérieure (32) du trou de réception circulaire respectif (29) ; et un système de lubrification configuré pour lubrifier les surfaces de palier circonférentielles intérieure et extérieure (32, 31) avec de l'huile alimentée à partir d'un carter d'huile (50), le système de lubrification comportant ...

REFRIGERATING MACHINE COMPRESSOR HAS SPIRAL HAS VARIABLE SPEED

밀폐형 압축기

... 본 발명은 밀폐형 압축기에 관한 것이다. 본 발명은, 어큐뮬레이터가 쉘의 내부공간에서 어큠공간을 형성함으로써 압축기 크기를 줄이고 조립공정을 간소화할 수 있다. 또, 냉매흡입유로를 갖는 고정축을 어큐뮬레이터에 직접 연결함으로써 냉매누설을 방지할 수 있다. 또, 어큐뮬레이터의 무게중심과 압축기의 무게중심을 일치시켜 어큐뮬레이터로 인한 압축기의 진동 소음을 감쇄시킬 수 있다. 또, 상기 상부베어링의 상단에 오일수집판을 설치하여 베인과 베인슬롯 사이에 오일을 공급함으로써 압축손실을 방지할 수 있다. 또, 어큐뮬레이터를 포함한 압축기의 설치에 필요한 면적을 최소화하여 실외기의 설계 자유도를 높이고 다른 부품과의 간섭을 최소화하여 실외기의 운반이 용이하게 될 수 있다.

DEVICE FOR PUMPING OIL OF HERMETIC COMPRESSOR

PURPOSE: A device for pumping oil of hermetic compressor is provided to supply oil more smoothly for heat radiation and lubrication for driving of the compressor. CONSTITUTION: A device includes an oil supply piece(40) installed on a lower end of a crank shaft(30) to rotate integrally with the crank shaft and drawing up oil(21) stored in a bottom of a hermetic container(20) therethrough; a sleeve(50) installed in the oil supply piece to have fixed gap with an inside of the oil supply piece and not to move relatively to the oil supply piece; an oil guide spring(60) having the sleeve forcibly inserted into an upper end of an inside thereof so that the part in which the sleeve is placed is placed in the oil supply piece, extending to a lower part of the oil supply part to be fixed and spirally wound on an outside of the sleeve to lift up oil; and a support(70) fixed on the bottom of the hermetic container to support a lower end of the oil guide spring. © KIPO 2003 ...

Compressor

COMPRESSOR

A compressor may include a crankshaft, a lower bearing, an oil sump, an oil pump and a pressure equilibrium tube. The crankshaft may include an oil supply passage formed therethrough. The lower bearing may rotatably support a lower part of the crankshaft. The oil sump may be disposed proximate the lower part of the crankshaft. The oil pump may include an inlet, an outlet, an intake chamber and a discharging chamber. The inlet may be positioned below a level of oil in the oil sump and in fluid communication with the intake chamber. The discharging chamber may be in fluid communication with the oil supply passage at the lower part of the crankshaft through the outlet. The pressure equilibrium tube provides fluid communication between a space above the level of oil in the oil sump and the intake chamber.

Electric compressor, and refrigeration air-conditioning apparatus

An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil.

Open drive scroll machine

An open drive scroll compressor had a unique lubrication system which includes a vane type oil pump attached to an outer diameter of the drive shaft of the compressor. The oil pump draws oil from an oil sump, sends a first portion of the oil to the components of the compressor needing lubrication and a second portion through a filter. The return to the sump from the filter is restricted to control oil pressure and thus the amount of circulated oil. The scroll compressor includes a first baffle between the oil sump and a counterweight attached to the drive shaft and a second baffle disposed between the scroll members and the oil sump.

Scroll compressor

A scroll compressor has a suction chamber, a stationary scroll and a movable scroll. The stationary scroll has a circumferential wall and a stationary volute portion. The movable scroll has a movable base plate and a movable volute portion. A circumferential surface of the movable base plate and an inner surface of the circumferential wall form a sealing portion at sections located close to each other with a narrow clearance. The sealing portion moves along the inner surface of the circumferential wall as the movable scroll orbits. Lubricating oil in a bottom portion of a suction chamber is supplied to a compression chamber defined by the volute portions from the suction chamber. This effectively utilizes lubricating oil retained in the bottom portion of the suction chamber ...

Rotary helical screw-type compressor

A screw compressor has a gear housing 1 from one side of which the rotor housing (3) containing the two screw rotors freely projecting outward. An oil supply container 7 is also located freely projecting out from the gear housing 1 approximately parallel to the rotor housing 3 and thermally separated from the rotor housing by means of an air gap. A ventilation channel 109 in the rotor housing 3 to vent the rotor shaft seals opens up to one point in the rotor housing that is protected against direct access by the oil supply container 7 mounted in front of it as well as by additional shoulders 111.

Compressor system

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Оil pump fоr а sсrоll соmprеssоr

Аn оil pump fоr а соmprеssоr inсludеs а driving shаft hаving аn оil pаssаgе, а gеаr driving unit соuplеd tо thе drivе shаft, а pump bоdу hаving а driving shаft insеrtiоn grооvе, а friсtiоn rеduсing mеmbеr аssеmblеd оn thе driving shаft insеrtiоn grооvе tо rеduсе friсtiоn bеtwееn thе driving shаft аnd pump bоdу, аnd а а gеаr unit соuplеd tо thе pump bоdу аnd rоtаting with rоtаtiоn оf thе driving shаft. Тhе pump mау furthеr inсludе а pump соvеr соuplеd tо thе pump bоdу аnd hаving аn intаkе fоr inhаling оil.

Compressor with Oil Pump

A compressor may include a compression mechanism and an oil pump. The compression mechanism is configured to compress a working fluid. The oil pump may be defined by a driveshaft and a bearing. The driveshaft is drivingly connected to the compression mechanism and includes a lubricant passage. The bearing receives a portion of the driveshaft and includes a bearing surface that rotatably supports the driveshaft. The bearing includes a pump cavity surface that is spaced apart from the driveshaft and cooperates with a diametrical surface of the driveshaft to define a pump cavity that extends around the diametrical surface of the driveshaft. The bearing includes an inlet passage and an outlet passage. The inlet passage receives oil from an oil sump and provides oil to the pump cavity. The outlet passage receives oil from the pump cavity and provides oil to the lubricant passage of the driveshaft.

Hermetic compressor and refrigeration cycle device having the same

Disclosed are a hermetic compressor (1) and a refrigeration cycle device having the same. An oil separator (100) for separating oil from a refrigerant is installed outside a casing (10). The oil separated by the oil separator (100) is recollected into the casing (10) by an oil pump (1000) driven by a driving force of a driving motor (20). Because an outlet (1177) of a discharge opening through which oil is discharged to the casing from the oil pump is installed at a position lower than a minimum level of oil in the casing (10), the refrigerant is prevented from backflowing into an oil passage, and the occurrence of air bubbles on the surface of oil in the compressor may be prevented.

Scroll compressor

Refrigerant compressor

A refrigerant compressor for use in refrigerators, air conditioners, heat pumps or the like apparatus. The refrigerant pump has a casing which encases a combination of a compressor and an electric motor. A spring guide has an attaching base portion fixed to a bearing supporting a crank shaft driven by the motor, and an oil pipe connected to the attaching base such that the inside of the oil pipe opens to one end of the crank shaft. The oil pipe is bent so that the free end thereof is immersed in the lubricating oil in the case. The oil pipe receives a coiled spring which is fixed at its one end to the end of the crank shaft while the other end is immersed in the lubricating oil. As the compressor operates, the coiled spring rotates in the oil pipe so that the lubricating oil is sucked by the lead of the coiled spring through the gap formed between the inner peripheral surface of the oil pipe and the coiled spring.

Fluid pump and rotary machine having said fluid pump

SCROLL TYPE COMPRESSOR

PURPOSE: To improve lubricity by reciprocating a boss part in a slider slot by turning a scroll blade and reciprocating a slider along a cylinder slot so that lubricating oil is supplied and discharged by spreading and contracting the slider slot and the cylinder slot according to this reciprocating motion, in the case of a scroll type compressor for a refrigeration cycle device. CONSTITUTION: A supply oil pump 23 is constituted of a cylinder 25 fixed by providing a cylinder slot 28 long in one direction, slider 26 reciprocatively engaged with this cylinder slot 28 to provide a slider slot 29 long in a direction mutually orthogonal to the cylinder slot and a boss part 13a of a turning scroll blade 13 reciprocatively engaged with the slider slot 29. By reciprocating motion of boss part 13a and slider 26, a space part between the slider long hole 29 and the cylinder slot 28 is spread and contracted. By the space spread contracted, lubricating oil in a supply oil chamber 22 between a rotary ...

OIL FEEDING DEVICE FOR SCROLL TYPE FLUID MACHINE

PURPOSE: To omit an inlet valve by opening one end of an inlet route to the side wall of a cylinder of a pump, and by opening/closing it by a skirt part of a piston, in the case of an oil feeder of a scroll type fluid machine for feeding oil by reciprocating the piston for the pump through rotational movement of a rotational scroll. CONSTITUTION: A piston 101 is fitted into a cylinder chamber 102 formed on a fixed scroll 1 so that the piston can be freely put in and out, and a pump 100 to be provided on a scroll fluid machine is thus formed. The piston 101 is energized to the outside by a spring 103, and is followed by a tilted surface 29 formed on an end plate 21 of a rotational scroll. An inlet route 92A is formed on the fixed scroll 1, facing a pump chamber 104 formed by the piston 101, while the end part opened to the side wall of the cylinder 102 is opened/closed by the skirt part of the piston 101. The other end of the inlet route 92A is opened into a pooled lubricating oil 81 on ...

ベーン型圧縮機

ГОРИЗОНТАЛЬНЫЙ СПИРАЛЬНЫЙ КОМПРЕССОР

FIELD: refrigerating equipment. SUBSTANCE: invention relates to a horizontal spiral compressor for use in refrigeration and air conditioning systems in movable type installations. Compressor comprises pressure sail, housing 1 with high and low pressure chambers 2 and 3, motor 4, movable and fixed spirals 5, 6, oil system. System includes oil separator 7 and oil cooler 8. Oil separator 7 is located in chamber 2, and cooler 8 is located in chamber 3 with possibility of sucked gas passage through it. For intake of oil from lower part of housing 1 there is an intake with pump. Intake is arranged inclined and penetrates into container connected to outer side of housing 1. Container consists of four plates and communicates with inner chamber of housing 1 through rectangular window, having vertically arranged larger sides. Lower plate of the container is located horizontally along the tangent to the surface of body 1 in its lower part. Two side plates are installed vertically parallel to each other. Fourth plate is arranged vertically and in upper part is attached to housing 1 at a tangent to its surface, and in lower and lateral respectively to lower plate and side plates. EFFECT: invention is aimed at providing operation of compressors arranged on movable objects. 1 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 699 854 C1 (51) МПК F04C 18/02 (2006.01) F04C 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04C 18/02 (2019.05); F04C 29/025 (2019.05) (21)(22) Заявка: 2018135954, 09.10.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: (73) Патентообладатель(и): Румянцев Антон Андреевич (RU) 11.09.2019 (45) Опубликовано: 11.09.2019 Бюл. № 26 2 6 9 9 8 5 4 R U (54) ГОРИЗОНТАЛЬНЫЙ СПИРАЛЬНЫЙ КОМПРЕССОР (57) Реферат: Изобретение относится к горизонтальному емкость, присоединенную к внешней стороне спиральному компрессору для использования в корпуса 1. Емкость состоит из четырех пластин ...

Fluid roller device for air compressors and vacuum pumps has lubricating pump and lubricant suction passage with outlet in circulating roller element supplying intake lubricant to lubricating sites

The device has a lubricating pump (21) between slide contact faces of a circulating roller element (8) and a pressure bearing (13) in a housing. The pump has a recess for holding the circulating element (22) which protrudes from the slide contact face into the recess. A slide plate defines a suction chamber and outlet chamber in the recess. As the roller element circulates so the circulating element moves in the recess which causes lubricant contained in the housing to be sucked in from a suction passage and supplied to the inside of a section with a round projection which holds a circulating bearing.

SCHRAUBENKOMPRESSOR

Compressor

A compressor is provided that includes an accumulator formed in an internal space of a shell to reduce a size of the compressor. An accumulator space may be formed using the shell of the compressor, thereby simplifying an assembly process. A stationary shaft having a refrigerant suction passage may be directly connected to the accumulator to prevent leakage of refrigerant. A discharge passage may be formed in a rotating body to enhance a cooling effect of a drive motor, and an oil separating member may be installed in the discharge passage to prevent oil from being excessively leaked out. A center of gravity of the accumulator may correspond to a center of gravity of the compressor to reduce vibration noise of the compressor caused by the accumulator. An area for installing a compressor including the accumulator may be minimized to enhance design flexibility of an outdoor device.

Hermetic compressor and manufacturing method thereof

A hermetic compressor is provided, comprising: a cylindrical shell; a stator fixed to inner surface of the shell; a rotor rotatably installed with respect to the stator; a compression unit combined with the rotor to be rotated together with the rotor; a stationary shaft including an eccentric portion around which the compression unit is supported stationary with respect to a longitudinal direction thereof; an accumulator fixed to inside of the shell in such a manner sealing the upper end of the shell and fixedly supporting one end of the stationary shaft above the stator; a lower frame fixed to inside of the shell and fixedly supporting the other end of the stationary shaft; an upper cap to seal the upper end of the accumulator; and a lower cap to seal the lower end of the shell.

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.

Scroll fluid machine

A disc-like spacer arranged below a first roller bearing rotatably supporting a driven crankshaft that forms an anti-rotation system is formed with a plurality of notches in the circumferential direction. A spot face is provided to face the outer circumferential surface of the spacer, and communication holes and are drilled on the outer circumferential side of the spot face to extend in the axial direction of the scroll. Also formed is a communication hole communicating the communication hole with the first roller bearing via the notches. A grease nipple is mounted to the communication hole. To replenish grease, the fixed scroll is removed from the housing such that the orbiting scroll is exposed, and grease is injected from the grease nipple into the first roller bearing with a grease gun.

Oil injection device for variable-speed scroll refrigeration compressor

The oil injection device according to the invention includes an oil pump designed to be rotationally coupled to the electric motor of a compressor and including inlet and outlet ports, an oil injection duct connected to the first outlet port and designed to supply a compression stage of the compressor with oil, and an oil return duct connected to the first outlet port and designed to return the oil into an oil sump of the compressor. The pressure losses in the oil injection duct are primarily singular pressure losses proportional to the square of the oil flow rate passing through the oil injection duct. The pressure losses in the oil return duct are primarily pressure losses due to friction proportional to the oil flow rate passing through the oil return duct.

Scroll compressor

A scroll compressor includes an oil recollecting pump for recollecting oil discharged from a shell, thus to effectively recollect oil discharged out of the compressor. A differential pressure hole is formed at a position where it communicates with compression chambers after a suction completion timing such that oil stored in an inner space of the shell can be supplied into the compression chambers using pressure difference between the high-pressure inner space of the shell and the low-pressure compression chambers, resulting in allowing oil to be smoothly supplied to a compression unit even during low-speed driving of the compressor and preventing beforehand an occurrence of a suction loss due to oil.

MOTOR VEHICLE VACUUM PUMP HAVING A SWITCHABLE CLUTCH

A motor vehicle vacuum pump includes a pump rotor, a coupling element, and a clutch arrangement. The clutch arrangement locks or releases the coupling element to/from the pump rotor so that the coupling element rotates together with or is released from the pump rotor. The clutch arrangement comprises a bolt holder connected to the pump rotor or to the coupling element to rotate therewith, an axially displaceable guide body, and a catch body connected to the coupling element or to the pump rotor to rotate therewith. The bolt holder comprises a bolt guide and a bolt body displaceable therein. The guide body is assigned to the bolt holder and comprises a guiding surface inclined with respect to an axial plane. The bolt body is forced radially into a locking position via the guiding surface. The catch body has a catch depression wherewith the bolt body engages in the locking position. 112-. (canceled)13. A mechanical motor vehicle vacuum pump comprising:a pump rotor;a coupling element configured to be mechanically driven by an internal combustion engine; and a bolt holder connected to the pump rotor or to the coupling element so as to rotate therewith, the bolt holder comprising at least one radial bolt guide and a bolt body which is configured to be displaceable in the at least one radial bolt guide,', 'a guide body configured to be axially displaceable, the guide body comprising a guiding surface which is inclined with respect to an axial plane, the guide body being assigned to the bolt holder, the bolt body being forced radially into a locking position via the guiding surface, and', 'a catch body connected to the coupling element or to the pump rotor so as to rotate therewith, the catch body having at least one rotational catch depression which is configured to have the bolt body engage therewith in the locking position., 'a clutch arrangement which is switchable and positively locking, the clutch arrangement being configured to lock the coupling element to the pump ...

COMPRESSOR OIL MANAGEMENT SYSTEM

A compressor () includes a compression mechanism () and a driveshaft () that drives the compression mechanism (). The driveshaft () may include a first axially extending passage (), a second axially extending passage (), and a lubricant distribution passage (). The first and second axially extending passages () may be radially offset from each other and may intersect each other at an overlap region (). The first and second axially extending passages () are in fluid communication with each other at the overlap region (). The lubricant distribution passage () may extend from the first axially extending passage () through an outer diametrical surface of the driveshaft (). The lubricant distribution passage () may be disposed at a first axial distance (D) from a first axial end () of the driveshaft (). A first axial end of the overlap region () may be disposed at a second axial distance (D) from the first axial end () of the drive shaft (). The first axial distance (D) is greater than the second axial distance (D). 1. A compressor comprising:a compression mechanism; anda driveshaft driving the compression mechanism, the driveshaft including a first axially extending passage, a second axially extending passage, and a lubricant distribution passage, wherein:the first axially extending passage and the second axially extending passage are radially offset from each other and intersect each other at an overlap region,the first and second axially extending passages are in fluid communication with each other at the overlap region,the lubricant distribution passage extends from the first axially extending passage through an outer diametrical surface of the driveshaft,the lubricant distribution passage is disposed at a first axial distance from a first axial end of the driveshaft,a first axial end of the overlap region is disposed at a second axial distance from the first axial end of the driveshaft,the first axial distance is greater than the second axial distance.2. The ...

Hermetic compressor

A hermetic compressor includes an airtight case a lower portion of which oil is stored in; a frame received in the airtight case; a compression mechanism disposed in the frame and to compress a refrigerant; a motor mechanism including a stator fixed to the frame and a rotor to rotate inside the stator; a rotation shaft coupled to the rotor and provided with a cavity at a lower portion of the rotation shaft, wherein the rotation shaft rotates together with the rotor and operates the compression mechanism; a stationary shaft inserted into the cavity of the rotation shaft, fixed to the airtight case, and provided with a helical groove formed on an outer circumferential surface; and an oil raising member fixed to the cavity of the rotation shaft and configured to surround the stationary shaft. The oil raising member raises the oil stored in the airtight case.

COMPRESSOR HAVING CENTRIFUGATION STRUCTURE FOR SUPPLYING OIL

A scroll compressor is provided which is capable of supplying oil stored in an oil storage chamber upward through a rotary shaft to lubricate a bearing portion. The scroll compressor may include a casing in which oil is stored in an oil storage chamber formed at a lower portion of the casing, a drive motor provided in an inner space of the casing, a rotary shaft coupled to the drive motor and including an oil supply path configured to guide the oil stored in the oil storage chamber and at least one oil hole that passes from the oil supply path to an outer circumferential surface of the rotary shall a main frame coupled to the rotary shaft and provided under the drive motor, a fixed scroll coupled to the rotary shaft and provided under the main frame, and an orbiting scroll provided between the main frame and the fixed scroll, into which the rotary shaft is inserted and to which the rotary shaft is eccentrically coupled, the orbiting scroll performing an orbiting movement to form a compression chamber with the fixed scroll. The oil guided upward through the oil supply path may be discharged through the at least one oil hole and supplied to the outer circumferential surface of the rotary shaft. 1. A scroll compressor , comprising:a casing in which oil is stored in an oil storage chamber formed at a lower portion of the casing;a drive motor provided in an inner space of the casing;a rotary shaft coupled to the drive motor and including an oil supply path configured to guide the oil stored in the oil storage chamber upward and at least one oil hole that passes from the oil supply path to an outer circumferential surface of the rotary shaft;a main frame coupled to the rotary shaft and provided under the drive motor;a fixed scroll coupled to the rotary shaft and provided under the main frame; andan orbiting scroll provided between the main frame and the fixed scroll and into which the rotary shaft is inserted and to which the rotary shaft is eccentrically coupled, the ...

SCROLL COMPRESSOR AND AIR CONDITIONING APPARATUS INCLUDING THE SAME

A scroll compressor includes a fixed scroll and a movable scroll. The fixed scroll has a spiral fixed-side wrap positioned upright on a surface of a fixed-side plate. The movable scroll is orbitably disposed to face the fixed scroll. The movable scroll has a spiral movable-side wrap positioned upright on a surface of a movable-side plate, with the movable-side wrap being configured to mesh with the fixed-side wrap. A side clearance is formed between a side surface of the fixed-side wrap and a side surface of the movable-side wrap so as to increase from an outer peripheral side toward an inner peripheral side of each of the wraps. 1. A scroll compressor , comprising:a fixed scroll having a spiral fixed-side wrap positioned upright on a surface of a fixed-side plate; anda movable scroll orbitably disposed to face the fixed scroll, the movable scroll having a spiral movable-side wrap positioned upright on a surface of a movable-side plate, the movable-side wrap being configured to mesh with the fixed-side wrap,a side clearance being formed between a side surface of the fixed-side wrap and a side surface of the movable-side wrap so as to increase from an outer peripheral side toward an inner peripheral side of each of the wraps.2. The scroll compressor according to claim 1 , whereinthe increase in the side clearance is set such that the side clearance approaches a uniform state from the outer peripheral side to the inner peripheral side during an orbiting operation of the movable scroll.3. The scroll compressor according to claim 1 , whereinthe increase in the side clearance is set such that an increase rate of the side clearance becomes larger from the outer peripheral side toward the inner peripheral side.4. The scroll compressor according to claim 1 , whereinthe increase in the side clearance is obtained by decreasing a tooth thickness of at least one of the fixed-side wrap and the movable-side wrap from the outer peripheral side toward the inner peripheral side.5. ...

WATER LUBRICATION AIR COMPRESSION SYSTEM

A water lubrication air compression system disposes an lubricant heat dissipation system at a bearing chamber close to the high pressure end of the compressor for cooling and circulating lubricant due to the rise of temperature during operation of the compressor, hence enhancing the ability and stability of the compressor. On the other hand, a negative pressure system is connected to the air chambers between the oil lubrication and the water lubrication of the compressor in order to provide a negative pressure. If any leak of water vapor at the compressor chamber or oil vapor at the bearing chamber, the negative pressure system is able to produce a negative pressured condition toward the sealing structure so that the oil lubrication can be effectively isolated from the water lubrication and inter-contamination between the lubricant and water can be avoided. 1. A water lubrication air compression system comprising:a compressor comprising an inlet end, an outlet end, a compression chamber, a first bearing chamber, a second bearing chamber, a first air chamber between the first bearing chamber and the compression chamber, and a second air chamber between the second bearing chamber and the compression chamber;an air channel system connected between the inlet end and the outlet end of the compressor, the air channel system comprising a water vapor isolation device connected to the outlet end of the compressor;a water channel system connected between an external water source and the inlet end of the compressor;a lubricant channel system connected to the second bearing chamber where a lubricant in the second bearing chamber is circulated in the lubricant channel system; anda negative pressure system connected to the first air chamber and the second air chamber and providing a negative pressure for the first air chamber and the second air chamber.2. The water lubrication air compression system of claim 1 , wherein the first bearing chamber comprises a first oil seal claim 1 ...

SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

A scroll compressor includes a crank shaft , an orbiting scroll , and a second plug part . The crank shaft has a lubricant channel which allows lubricant to flow therethrough. The orbiting scroll is attached to the crank shaft and has a second inner channel that allows the lubricant supplied thereto through the crank shaft to outwardly flow therethrough. The second plug part serving as an adjustment part is provided in the second inner channel of the orbiting scroll and adjusts a flow amount of the lubricant flowing through the second inner channel 1. A scroll compressor comprising:a crank shaft having a lubricant channel which allows lubricant to flow therethrough;an orbiting scroll attached to the crank shaft;{'b': '6', 'inner channels provided in the orbiting scroll, including a first inner channel and a second inner channel, and allowing the lubricant supplied thereto through the crank shaft () to outwardly flow therethrough; and'}an adjustment part provided in the at least one second inner channel and configured to adjust a flow amount of the lubricant flowing through the at least one inner channel.2. The scroll compressor of claim 1 ,wherein the adjustment part has a through hole having a smaller area of a channel than an area of a channel for the lubricant in the at least one inner channel.3. The scroll compressor of claim 2 ,{'b': 1', '2', '2', '1, 'wherein, when a diameter of a hole of the at least one inner channel is R and a diameter of a hole of the through hole is R, following relationships are satisfied: R/R is from 30 to 50%.'}4. The scroll compressor of claim 1 , a discoidal base plate, and', 'a cylindrical part that projects from one surface of the base plate, and, 'wherein the orbiting scroll includes'}wherein one end of the at least one inner channel is connected to an inside of the cylindrical part at one end and an other end penetrates the base plate to an outer side of the base plate.5. The scroll compressor of claim 4 ,wherein a plug part that ...

Rotary screw compressors utilizing viscous damping for vibration reduction

A screw compressor utilizing radial and axial or thrust bearings to maintain the position of the rotors radially and axially and utilizing a damping fluid to dampen rotor vibrations. The damping fluid may conveniently be provided in the form of lubricant that is already used in the compressor to seal the clearances between the rotors and between the rotors and the cylinder during compression. The damping fluid is included in a squeeze film damper, arranged in a parallel arrangement with the radial or thrust bearings, which provides viscous damping to the rotor. The introduction of additional viscous damping such as may be provided by squeeze film dampers may result in significant reduction of compressor vibration regardless of the source of vibration.

Compressor

A compressor is provided that may include a passage separator provided between an electric motor drive and a compression device to separate a refrigerant passage from an oil passage. The passage separator may include a first partition wall and a second partition wall. The first partition wall may be disposed between an inner circumferential surface of a casing and a discharge hole of the compression device, and the second partition wall may be disposed between the discharge hole and a balance weight. Accordingly, the refrigerant passage may be separated from the oil passage between the compression device and electric motor drive, thereby efficiently recovering oil to an oil storage space.

VACUUM PUMP

A mechanical automotive vacuum pump includes a housing with a housing cylindrical bearing surface. A pumping chamber is arranged in the housing. A pump rotor which includes a rotor body having a rotor body bearing section and a chamber section is rotatably supported by the housing. A radial vane slit is arranged at the chamber section. A rotor body cylindrical bearing surface is arranged at the rotor body bearing section. The rotor body bearing section includes a circular lubrication ring groove. A radially shiftable pump vane is supported in the radial vane slit. A friction bearing is defined by the rotor body cylindrical bearing surface and the housing cylindrical bearing surface. The housing cylindrical bearing surface includes a lubrication inlet opening which lies in a same transversal plane as and opposite to the circular lubrication ring groove. The lubrication inlet opening is directly connected to a lubricant pump connector. 111-. (canceled)12. A mechanical automotive vacuum pump comprising:a housing comprising a housing cylindrical bearing surface;a pumping chamber arranged in the housing; wherein,', 'a radial vane slit is arranged at the chamber section,', 'a rotor body cylindrical bearing surface is arranged at the rotor body bearing section, and', 'the rotor body bearing section comprises a circular lubrication ring groove;, 'a pump rotor configured to be rotatably supported by the housing, the pump rotor comprising a rotor body which comprises a rotor body bearing section and a chamber section,'}a pump vane configured to be radially shiftable, the pump vane being supported in the radial vane slit;a friction bearing defined by the rotor body cylindrical bearing surface and the housing cylindrical bearing surface; anda lubricant pump connector,wherein,the housing cylindrical bearing surface comprises a lubrication inlet opening which is arranged to lie in a same transversal plane as and opposite to the circular lubrication ring groove, andthe lubrication ...

Scroll compressor

A scroll compressor includes a slider including a cylindrical portion supported by a rocking bearing provided on an orbiting scroll so that it rotates freely, and a balance weight portion connected to the cylindrical portion. When a direction opposite to an eccentric direction of the orbiting scroll is a counter eccentric direction and a direction of a central axis of the rocking bearing is a Z-axis direction, the balance weight portion includes a main weight portion provided at a position distant from a center of rotation of the slider in the counter eccentric direction, and a counter-weight portion provided at a position spaced away from the orbiting scroll than a position of a center of the rocking bearing in the Z-axis direction and at a position distant from the center of rotation of the slider in the eccentric direction.

Rotor pump and rotary machinery comprising same

The present invention relates to a rotor pump ( 10 ), comprising: a pump body ( 50 A) capable of being rotatably driven and forming an accommodation cavity ( 52 ) therein; a pump wheel ( 20, 20 A) having a main body part ( 22 ) capable of rotating in the accommodation cavity and a first shaft part ( 24 ) axially extending from the main body part; and a sealing plate ( 30 ) comprising an eccentric hole ( 32 ) being eccentric relative to the rotation axis of the pump body; the first shaft part is rotatably fitted in the eccentric hole; a suction channel ( 25 ) is formed on one side of the pump wheel, and a discharge channel is formed on the other side of the pump wheel; the suction channel and the discharge channel are respectively in fluid communication with a compression cavity formed between the outer circumference of the pump wheel and the inner circumference of the accommodation cavity. The present invention also relates to a rotary machinery comprising the rotor pump. The rotor pump of the present invention has a simple structure, fewer components and low cost.

LUBRICATION SYSTEM FOR A COMPRESSOR

An oil flooded screw compressor includes a housing with an inlet and an outlet, and a rotor supported within the housing by a bearing. The rotor is rotatable to compress air from the inlet to the outlet when the compressor is in an operating state, and the rotor is rotatable without compressing air when the compressor is in an idle state. The compressor also includes a pump configured to supply oil to the bearing only when the compressor is in the idle state. 1. An oil flooded screw compressor comprising:a housing including an inlet and an outlet;a rotor supported within the housing by a bearing, wherein the rotor is rotatable to compress air from the inlet to the outlet when the compressor is in an operating state, and the rotor is rotatable without compressing air when the compressor is in an idle state; anda pump configured to supply oil to the bearing only when the compressor is in the idle state.2. The compressor of claim 1 , further comprising a separator tank configured to separate oil from the air compressed by the rotor.3. The compressor of claim 2 , wherein the separator tank is pressurized during the operating state of the compressor and depressurized during the idle state of the compressor.4. The compressor of claim 3 , wherein the pump is fluidly coupled to the separator tank to draw oil from the separator tank.5. The compressor of claim 2 , further comprising a valve assembly configured to direct oil from the pump to the bearing when the compressor is in the idle state.6. The compressor of claim 5 , wherein the valve assembly is configured to direct oil from the pump to the separator tank when the compressor is in the operating state claim 5 , bypassing the bearing.7. The compressor of claim 5 , wherein the valve assembly includes a solenoid-actuated diverter valve.8. The compressor of claim 1 , further comprisinga motor coupled to the pump; anda controller configured to energize the motor when the compressor is in the idle state, and to de-energize ...

SCROLL COMPRESSOR

A scroll compressor is provided, including: a compression mechanism, a driving mechanism, a suction fitting and a lubrication system. The compression mechanism is adapted to compress working fluid and includes a movable scroll component, a fixed scroll component and a suction window, the working fluid flows into the compression mechanism via the suction window. The driving mechanism includes a driving shaft and is adapted to drive the compression mechanism. The working fluid flows into the scroll compressor via the suction fitting and then flow into the compression mechanism. The lubrication system includes a lubricant source and a compression mechanism oil supply device adapted to supply the lubricant to the compression mechanism from the lubricant source. The compression mechanism oil supply device has an oil supply passage and an outflow opening of the oil supply passage is located between an opening of the suction fitting and the suction window. 1. A scroll compressor , comprising:a compression mechanism adapted to compress a working fluid and comprising an orbiting scroll set, a non-orbiting scroll set and a suction window, the working fluid flowing into the compression mechanism via the suction window;a drive mechanism comprising a drive shaft and adapted to drive the compression mechanism;a suction fitting via which the working fluid flows into the scroll compressor and further flows to the compression mechanism; anda lubrication system comprising a lubricant source and a compression mechanism oil supply device adapted to supply a lubricant from the lubricant source to the compression mechanism,wherein the compression mechanism oil supply device has an oil supply passage, and an outflow opening of the oil supply passage is located between an opening of the suction fitting and the suction window.2. The scroll compressor according to claim 1 , wherein the outflow opening is located on a working fluid flow path extending from the opening of the suction fitting ...

Gas Pump With A Sealing Oil Groove

A gas pump including a first housing part () comprising a sealing surface (); a second housing part () comprising a sealing surface (); a delivery chamber () comprising an inlet () and an outlet () for a gas; and a delivery device (), which can be moved within the delivery chamber (), for delivering the gas, wherein the housing parts () are joined to each other such that they at least partially enclose the delivery chamber () over a circumference of the chamber, and such that their sealing surfaces () abut each other in order to seal off the delivery chamber (), and wherein a sealing recess () extends in at least one of the sealing surfaces () around the delivery chamber () and is filled with a sealing liquid when the gas pump is in operation. 1. A gas pump , comprising:a first housing part comprising a first sealing surface;a second housing part comprising a second sealing surface;a delivery chamber comprising an inlet and an outlet for a gas; anda delivery device, which is movable within the delivery chamber, for delivering the gas,wherein the first and second housing parts are joined to each other such that they at least partially enclose the delivery chamber over a circumference of the chamber, and such that the first and second sealing surfaces abut each other in order to seal off the delivery chamber, and wherein a sealing recess extends in at least one of the first and second sealing surfaces around the delivery chamber and is filled with a sealing liquid when the gas pump is in operation.2. The gas pump according to claim 1 , wherein the gas pump is a negative pressure pump for supplying one or more assemblies with negative pressure.3. The gas pump according to claim 2 , wherein the one or more assemblies are part of a motor vehicle.4. The gas pump according to claim 1 , wherein the sealing recess is connected via a feed to a reservoir or circulation of the sealing liquid claim 1 , such that the sealing liquid can be fed to the sealing recess.5. The gas pump ...

WATER LUBRICATION TWIN-SCREW TYPE AIR COMPRESSOR

A water lubrication screw type air compressor includes a compressor, an air-loop system and a water-loop system. The water-loop system comprises a water supply device, a first water-loop unit and a second water-loop unit. The water supply device comprises a first water-treatment device to modify the water quality and provide purified water. The first water-loop unit comprises a second water-treatment device to modify water quality and reduce the corrosion of metal components. The second water-loop unit comprises a water filter to remove the impurities in water and maintain the purity of cycling water. Therefore, the water-loop system in the present invention comprises multiple water-treatment devices and filters to maintain the water quality. The purified water ensures better cooling, lubrication and airproofing when injected into the compressor. 1. A water lubrication screw type air compressor comprising:a compressor, especially a water lubrication twin-screw type air compressor, the compressor having a compression chamber and an axial sealing inside, the compressor further comprising an inlet end, an outlet end, a first water-injection port and a second water-injection port, the first water-injection port connected to the axial sealing and the second water-injection port connected to the compression chamber;an air-loop system connected to the inlet end and the outlet end of the compressor, and the air-loop system comprising a moisture separator that connects to the outlet end of the compressor; anda water-loop system comprising a water supply device, a first water-loop unit and a second water-loop unit, the water supply device connecting the inlet end of the compressor and an external water source, and the water supply device comprising a first water-treatment device, the first water-loop unit connecting the moisture separator and the first water-injection port of the compressor, the first water-loop unit comprising a second water-treatment device, the second ...

LIGHTWEIGHT VACUUM PUMP WITH OXIDIZED SURFACES

A light weight vacuum pump is made with either or all of the stator, rotors and vanes made of aluminum or aluminum alloy that has been subjected to high energy oxidation, such as plasma electrolytic oxidation (PEO), electrolytic plasma oxidation (EPO) or micro-arc oxidation (MAO), to treat and harden the surface. 1. A vacuum pump system comprising:a motor; anda vacuum pump operably connected to the motor, the vacuum pump having one or more rotors and one or more stators formed from material selected from the group consisting of aluminum, aluminum alloy or sintered aluminum powder, wherein the one or more rotors and one or more stators are treated with a high energy oxidation process selected from the group consisting of plasma electrolytic oxidation, electrolytic plasma oxidation, micro-arc oxidation or spark discharge anodizing.2. The vacuum pump system of further comprising:a plurality of vanes operably connected to the one or more rotors wherein the plurality of vanes are formed of material selected from the group consisting of aluminum, aluminum alloy or sintered aluminum powder, and wherein the plurality of vanes are treated with a high energy oxidation process selected from the group consisting of plasma electrolytic oxidation, electrolytic plasma oxidation, micro-arc oxidation or spark discharge anodizing.3. The vacuum pump system of further comprising:a plurality of vanes operably connected to the one or more rotors wherein the plurality of vanes are formed of material selected from the group consisting of untreated polymer, carbon or graphite.4. The vacuum pump system of further comprising:an oil pump operatively connected to one of the one or more rotors.5. The vacuum pump system of further comprising:an oil tank configured to submerge the vacuum pump in oil during operation.6. A vacuum pump comprising:a stator having a cylindrical volute with a cylindrical inner wall, a first end wall and a second end wall;a rotor rotatably disposed within the stator, ...

AUTOMOTIVE VACUUM PUMP

A vacuum pump for pumping a gas includes a pump housing which defines a pump cavity, a shiftable vane, a pump rotor body, a separate axial rotor retaining arrangement, and a radial friction bearing. The pump housing includes a closed housing wall. The pump rotor body includes a vane slit which supports the shiftable vane to define rotating pumping chambers, an axial low-pressure end which is axially supported by the closed housing wall so that a gas pressure inside the pumping chambers is present at the low-pressure end, and an axial high-pressure end. The pump housing is fluidically open at the axial high-pressure end so that atmospheric pressure is present. The axial rotor retaining arrangement includes a retaining sheet body arranged in a transversal plane which axially in part blocks the axial high-pressure end. The radial friction bearing is arranged axially between the vane slit and the axial high-pressure end. 111-. (canceled)12. An automotive vacuum pump for pumping a gas , the automotive vacuum pump comprising:a pump housing configured to define a pump cavity, the pump housing comprising a closed housing wall;a shiftable vane; at least one vane slit which is configured to support the shiftable vane so as to define at least two rotating pumping chambers,', 'an axial low-pressure end which is axially supported by the closed housing wall so that a gas pressure inside the at least two rotating pumping chambers is present at the low-pressure end of the pump rotor body, and', 'an axial high-pressure end,', 'the pump housing being configured to be fluidically open at the axial high-pressure end so that atmospheric pressure is present at the axial high-pressure end;, 'a pump rotor body comprising,'}a separate axial rotor retaining arrangement comprising a separate retaining sheet body which is arranged in a transversal plane and which is configured to axially block at least partially the axial high-pressure end of the pump rotor body; anda radial friction bearing ...

LUBRICATING OIL SUPPLY APPARATUS AND COMPRESSOR USING LUBRICATING OIL SUPPLY APPARATUS

A lubricating oil supply apparatus having a structure in which a valve is forced in a direction for opening a bypass hole by a centrifugal force, and a spring presses the valve in a direction in which the valve closes the bypass hole. When the above-described structure is applied to an oil pump in which an oil (lubricating oil) supply amount increases in proportion to an operation speed, it is possible to secure a sufficient oil (lubricating oil) supply amount in a low speed operation mode, and prevent oil from being supplied more than necessary in a high speed operation mode. 1. A lubricating oil supply apparatus , comprising:a rotational shaft;a hollow lubricating oil supply path formed along a longitudinal direction of the rotational shaft;a lubricating oil supply portion installed at a lower end of the rotational shaft to supply lubricating oil to the lubricating oil supply path;a bypass hole provided at a side surface of the rotational shaft to allow a space outside of the rotational shaft and the lubricating oil supply path to communicate; and a valve that opens and closes the bypass hole; and', 'a spring that elastically presses the valve in a direction toward a center of the rotational shaft, and wherein a degree of opening of the bypass hole is determined based on a degree of opening of the valve, which is subjected to a centrifugal force generated by rotation of the rotational shaft, moving in a direction away from the center of the rotational shaft while overcoming an elastic force of the spring., 'a valve body installed on the rotational shaft to open and close the bypass hole, wherein the valve body comprises2. The lubricating oil supply apparatus of claim 1 , wherein the valve body further comprises a valve housing fixed to the rotational shaft claim 1 , wherein a first end of the spring is supported by the valve housing claim 1 , and a second end of the spring is supported by the valve claim 1 , and wherein the valve housing is provided with a ...

VANE PUMP

A vane pump including: a housing having a pump chamber; a rotor having a cylindrical peripheral wall portion accommodated in the pump chamber and having a pair of vane holding grooves facing each other in a diameter direction, and an oil chamber defined inside the peripheral wall portion to store lubricating oil; and a vane that is held in the pair of vane holding grooves and moves across the oil chamber in the diameter direction, is provided. At least one of an inner surface of the housing and an end face of the peripheral wall portion, which together with the inner surface defines a sliding interface, has an oil groove for the lubricating oil. 15-. (canceled)6. A vane pump comprising:a housing having a pump chamber;a rotor having a cylindrical peripheral wall portion accommodated in the pump chamber and having a pair of vane holding grooves facing each other in a diameter direction, and an oil chamber defined inside the peripheral wall portion to store lubricating oil; anda vane that is held in the pair of vane holding grooves and moves across the oil chamber in the diameter direction,wherein at least one of an inner surface of the housing or an end face of the peripheral wall portion, which together with the inner surface of the housing defines a sliding interface, has an oil groove for the lubricating oil, andwherein the oil groove extends only in a circumferential direction.7. The vane pump according to claim 6 , whereinthe oil groove is formed along an entire circumference.8. The vane pump according to claim 6 , whereina plurality of the oil grooves are formed concentrically on the end face of the peripheral wall portion, anda radially innermost oil groove of the oil grooves is formed along an inner peripheral edge of the end face of the peripheral wall portion.9. The vane pump according to claim 7 , whereina plurality of the oil grooves are formed concentrically on the end face of the peripheral wall portion, anda radially innermost oil groove of the oil ...

Scroll compressor with wrap having gradually decreasing thickness

A scroll compressor is provided that may include a casing; a drive motor provided at an inner space of the casing; a rotational shaft coupled to a rotor of the drive motor, and rotated together with the rotor; a frame provided below the drive motor; a fixed scroll provided below the frame, and having a fixed wrap; and an orbiting scroll provided between the frame and the fixed scroll, having an orbiting wrap so as to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the fixed wrap. In a state in which a center of the fixed scroll and a center of the orbiting scroll are substantially the same, an interval between the fixed wrap and the orbiting wrap gradually increases towards the suction chamber from the discharge chamber.

A TRANSPORTABLE SYSTEM FOR DELIVERING LUBRICANT TO A LUBRICATION TARGET AND PARTS THEREFOR

The present invention relates to a transportable system for delivering lubricant to a target, more specifically for lubricating machine parts and/or for re-filling a central or a de-central lubricating system. Further, the present invention relates to parts of the transportable system, the parts being a pressure releasing coupling, a gear pump and/or a high pressure pump. 2. The pressure releasing coupling according to claim 1 , wherein at least a part of the pressure releasing element comprises a hollow section such that the lubricant is guided within at least part of the hollow section and inside the pressure releasing element.3. The pressure releasing coupling according to claim 2 , wherein the hollow section is open-ended in one end of the pressure releasing element claim 2 , such that the first outlet is formed by the pressure releasing element.4. The pressure releasing coupling according to claim 2 , wherein the pressure releasing element comprises at least two side holes such that the pressure releasing element is configured for guiding the lubricant into the hollow section via at least a first side hole and out of the hollow section to the second outlet via at least a second side hole.5. The pressure releasing coupling according to claim 2 , wherein the pressure releasing element comprises more than two side holes claim 2 , such as more than four side holes claim 2 , such as more than six holes claim 2 , such as eight holes claim 2 , such that the pressure releasing element is configured for guiding the lubricant into the hollow section via at least two first side holes claim 2 , such as via at least three first side holes claim 2 , such as via four first side holes claim 2 , and out of the hollow section to the second outlet via at least two second side holes claim 2 , such as via at least three second side holes claim 2 , such as via four second side holes.6. The pressure releasing coupling according to claim 5 , wherein the at least two first side holes ...

SCREW COMPRESSOR, COMPRESSOR ELEMENT AND GEARBOX APPLIED THEREBY

A screw compressor comprising a compressor element with a housing in which two helical rotors are mounted on bearings by their shafts, and a gearbox—with a housing with a mounting surface that is built onto a mounting surface of the housing of the compressor element, and which is coupled in a torque-transmitting way to a shaft of at least one of the aforementioned rotors, whereby the compressor element is provided with an oil circuit with an input and an output for oil and a cooling jacket with an input and output for a coolant, wherein the aforementioned inputs and outputs for the oil and for the coolant are located in the aforementioned mounting surface of the housing of the compressor element, whereby these inputs and outputs connect to channels for the respective supply and removal of the oil and the coolant. 122-. (canceled)23. A screw compressor comprising a compressor element with a housing in which two helical rotors are mounted on bearings by their shafts , and a gearbox with a housing with a mounting surface that is built onto a mounting surface of the housing of the compressor element , and which is coupled in a torque-transmitting way to a shaft of at least one of the aforementioned rotors , whereby the compressor element is provided with an oil circuit with an input and an output for oil and a cooling jacket with an input and output for a coolant , wherein the aforementioned inputs and outputs for the oil and for the coolant are located in the aforementioned mounting surface of the housing of the compressor element , whereby these inputs and outputs are configured to connect to channels for the respective supply and removal of the oil and the coolant that are at least partially integrated internally in the gearbox.24. The screw compressor according to claim 23 , wherein the aforementioned mounting surfaces surround the shaft ends of the rotors at the side of the gearbox.25. The screw compressor according to claim 23 , wherein the shaft ends of the ...

ELECTRIC COMPRESSOR, AND REFRIGERATION AIR-CONDITIONING APPARATUS

An electric compressor is provided which has: in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism, wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and a refrigerator oil stored in the sealed container contains; polyvinyl ether as a base oil; an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil; and tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil. 1. An electric compressor comprising;in a sealed container, a compression mechanism to compress a refrigerant and an electric motor to drive the compression mechanism,wherein the refrigerant contains 20% by mass or more of hydrofluoroolefin, and polyvinyl ether as a base oil,', 'an alicyclic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil,', 'an aliphatic epoxy compound in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil, and', 'tertiary phosphate in an amount of 0.1% by mass or more and 2.0% by mass or less relative to the base oil., 'a refrigerator oil stored in the sealed container contains'}2. The electric compressor according to claim 1 , whereinthe electric motor drives the compression mechanism through a rotation axis supported by a rolling bearing to be lubricated with the refrigerator oil.3. The electric compressor according to claim 1 , whereinthe hydrofluoroolefin is at least one selected from 2,3,3,3-tetrafluoropropene, 1,3,3,3-tetrafluoropropene, trifluoroethene, and 3,3,3-trifluoropropene.4. The electric compressor according to claim 1 , whereinthe alicyclic epoxy compound is 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexanecarboxylate.5. The electric compressor according to claim 1 , ...

SCROLL COMPRESSOR HAVING A CENTRIFUGAL OIL PUMP

The scroll compressor () includes a compression unit (); a drive shaft () which is vertically orientated; upper and lower bearing arrangements () configured to rotatably support the drive shaft (); a centrifugal oil pump () including a pick-up tube () attached to a lower end portion () of the drive shaft () and provided with a oil inlet immersed in an oil sump (), the centrifugal oil pump () being configured to deliver oil to the compression unit () and to the upper and lower bearing arrangements (); and a static fairing member () secured to a non-rotating part of the scroll compressor () and including a static tubular part () which is immersed in the oil sump () and which surrounds the pick-up tube () with a predetermined distance such that a gap is formed between the inner surface of the static tubular part () and the outer surface of the pick-up tube (). 1. A scroll compressor including:a hermetic outer shell provided with a suction inlet configured to supply the scroll compressor with refrigerant gas to be compressed and a discharge outlet configured to discharge compressed refrigerant gas,a compression unit including at least a first scroll element and a second scroll element the second scroll element being configured to perform an orbiting movement relative to the first scroll element during operation of the scroll compressor,a drive shaft which is vertically orientated and which is configured to cooperate with the second scroll element,an upper bearing arrangement and a lower bearing arrangement configured to rotatably support the drive shaft within the hermetic outer shell,a centrifugal oil pump including a pick-up tube attached to a lower end portion of the drive shaft and provided with a oil inlet arranged at a lower end of the pick-up tube, the oil inlet being immersed in an oil sump arranged in a bottom section of the hermetic outer shell, the centrifugal oil pump being configured to deliver, during operation of the scroll compressor, oil to the ...

VIRTUAL SENSOR FOR WATER CONTENT IN OIL CIRCUIT

A method for monitoring an oil-injected screw compressor configured to compress aspirated air by returning oil from an oil separator vessel () to a compression chamber () of a compressor block (), for condensate formation in the oil circuit due to a too low compression discharge temperature (VET), determines a water inlet mass flow {dot over (m)}(t) and a water outlet mass flow {dot over (m)}(t) for a point in time t and determines generated condensate flow Δ{dot over (m)}(t)={dot over (m)}(t)−{dot over (m)}(t) on the basis of difference formation. 1111230. A method for monitoring an oil-injected screw compressor configured to compress aspirated air , in which oil from an oil separator tank () is fed back to a compression chamber () of a compressor block () , for condensate formation in the oil circuit due to a low compression discharge temperature (VET) ,{'sub': ein', 'aus', 'w', 'ein', 'aus, 'wherein a water inlet mass flow {dot over (m)}(t) and a water outlet mass flow {dot over (m)}(t) are determined for a point in time t and generated condensate flow Δ{dot over (m)}(t)={dot over (m)}(t)−{dot over (m)}(t) is determined on the basis of a difference formation.'}2. The method according to claim 1 , wherein a condensate mass mwhich has been generated in this time interval is calculated from a summation of the condensate flows occurring in a time interval claim 1 , wherein the calculation preferably takes place as follows: m(t)=m(t−dt)+Δ{dot over (m)}*dt (for example with dt=1 s).3. The method according to claim 1 , wherein the total generated condensate mass m(t) is calculated from a known initial value of the condensate mass m(t) by numerical integration of the condensate flow Δ{dot over (m)}over time.5. The method according to claim 4 , wherein claim 4 , at m(t)>m claim 4 , a target value for the compression discharge temperature (VET) is increased by a predetermined amount claim 4 , in particular by a predetermined temperature value claim 4 , e.g. VET=VET+5 K.7. ...

ROTARY COMPRESSOR

In a rotary compressor, a protruding portion which protrudes downward from a bottom end of a rotation shaft and in which an outer diameter is smaller than an outer diameter of a sub-bearing unit is formed on the sub-bearing unit which is provided on a lower end plate, a step portion is formed between the protruding portion and the sub-bearing unit, and a center hole of a lower end plate cover is caused to mate with the protruding portion and is caused to come into close contact with the step portion. 1. A rotary compressor comprising:a sealed vertically-placed cylindrical compressor housing in which a discharge pipe which discharges a refrigerant is provided on a top portion and an upper inlet pipe and a lower inlet pipe which suck in the refrigerant are provided on bottom portions of side surfaces;an accumulator which is fixed to a side portion of the compressor housing and which is connected to the upper inlet pipe and the lower inlet pipe;a motor which is disposed inside the compressor housing; anda compressing unit which is disposed beneath the motor inside the compressor housing, is driven by the motor, sucks in the refrigerant from the accumulator via the upper inlet pipe and the lower inlet pipe, compresses the refrigerant, and discharges the refrigerant from the discharge pipe, an upper cylinder and a lower cylinder which are formed in ring shapes;', 'an upper end plate which blocks a top side of the upper cylinder and a lower endplate which blocks a bottom side of the lower cylinder;', 'an intermediate partition plate which is disposed between the upper cylinder and the lower cylinder and blocks a bottom side of the upper cylinder and a top side of the lower cylinder;', 'a rotation shaft which includes, in an inner portion thereof, an oil feeding vertical hole into which an oil feeding impeller is press-fitted and an oil feeding horizontal hole which communicates with the oil feeding vertical hole, whose main shaft unit is supported by a main bearing unit ...

Gas Compressor

A bearing oil feeding amount is appropriately controlled with respect to specifications of a discharge pressure (bearing load) and a rotation speed. A gas compressor has: a compressor main body that compresses gas and has a rotor; a bearing for supporting the rotor onto a compressor main body casing; an oil case that stores a lubricating oil to be supplied to the bearing; a lubricating oil pipe through which the lubricating oil is circulated from the oil case to the bearing; an oil pump that pumps the lubricating oil from the oil case to the bearing via the lubricating oil pipe; a flow amount control means for adjusting an amount of lubricating oil that circulates through the lubricating oil pipe; an electric motor that supplies power to the rotor; an inverter that outputs a rotation frequency of the electric motor; a pressure sensor that detects the discharge pressure of the compressor main body; and a control unit that determines a lubricating oil supply amount to the bearing on the basis of the load on the bearing corresponding to the pressure detected by the pressure sensor and the rotation speed of the rotor corresponding to the rotation frequency output by the inverter, and that controls the flow amount control means on the basis of the lubricating oil supply amount.

Scroll compressor

A scroll compressor includes a casing, a compression mechanism accommodated within the casing, a motor arranged to rotatably drive the crankshaft, an oil feed pump arranged to feed lubricating oil upward, a lower oil reservoir disposed in a space below the oil feed pump to hold lubricating oil, an oil feed path and an oil retention space. The compression mechanism has a stationary scroll and a moveable scroll forming a compression chamber. The crankshaft is linked to the moveable scroll. The oil feed passage is formed so as to extend in an axial direction within an interior of the crankshaft and communicates at a lower end with a discharge side of the oil feed pump. The oil retention space is formed so as to extend in an axial direction within the interior of the crankshaft separately from the oil feed passage and communicates with the oil feed passage.

HORIZONTAL ROTARY COMPRESSOR WITH ENHANCED TILTABILITY DURING OPERATION AND OTHER PERFORMANCE METRICS

This disclosure describes new horizontal roller-piston/vane type rotary compressors with novel features such as new lubricating oil circuit designs to provide reliable oil lubrication, and increase tiltability during operation. Also new multi-pump configurations of horizontal compressors are introduced in order to significantly increase redundancy, reliability, and turn down ratio. Rotary compressors may be configured with subsets of the disclosed features to configure those compressors for specific applications. 1. A horizontal compressor comprising:a shell divided into a motor space and a pump space by a separator, wherein the separator has an oil passage at a lower part of the separator and a gas passage in an upper part connecting the motor space and the pump space;a motor positioned in the motor space;a first sump positioned in a lower part of the motor space;a second sump positioned in a lower part of the pump space;a discharge valve, wherein discharge gas out of the discharge valve enters the motor space and goes through the motor to provide cooling for the motor and exits the motor into a discharge tube positioned at an end of the motor space; anda gas tube having a first end and a second end, wherein the first end is connected to the gas passage of the separator and the second end extends toward and juts into the discharge tube without blocking the discharge tube, wherein flow of the discharge gas flowing around the end of the gas tube and entering into the discharge tube induces flow of gas from the pump space into the motor space by a jet pump effect which lowers the pressure in the pump space, wherein lowering the pressure in the pump space causes oil from the sump in the lower part of the motor space to flow into the sump in the lower part of the pump space,wherein the second sump is positioned at an elevation higher than an elevation of the first sump such that an equilibrium is reached between the oil pumping force of the first sump and the oil ...

COMPRESSOR WITH OIL PUMP ASSEMBLY

A compressor is provided and may include a shell, a motor assembly, a driveshaft, a pump housing, and a pumping mechanism. The motor assembly may be disposed within the shell. The driveshaft may be drivingly engaged with the motor assembly. The pump housing may be rotatably supported by the driveshaft for rotation relative to the shell. The pumping mechanism may be disposed within the pump housing and rotating with or orbiting about the driveshaft. 1. A compressor comprising:a shell;a motor assembly disposed within the shell;a driveshaft drivingly engaged with the motor assembly;a compression mechanism driven by the driveshaft;a pump housing rotatably supported by the driveshaft for rotation relative to the shell; anda pumping mechanism disposed within the pump housing and in driving engagement with the driveshaft.2. The compressor of claim 1 , further comprising a drag member supported by the pump housing and at least partially disposed within a fluid.3. The compressor of claim 2 , wherein the drag member extends radially outwardly from the pump housing.4. The compressor of claim 2 , wherein the drag member includes a plurality of outward surfaces claim 2 , the plurality of outward surfaces having a surface roughness.5. The compressor of claim 1 , wherein the pump housing is not supported by the shell.6. The compressor of claim 2 , wherein the pumping mechanism applies a first torque on the pump housing in a first direction claim 2 , and the drag member applies a second torque on the pump housing in a second direction claim 2 , the second direction being opposite the first direction.7. The compressor of claim 1 , wherein the motor assembly includes a rotor and a stator claim 1 , the rotor disposed radially outwardly relative to the stator and fixed for rotation with the driveshaft.8. The compressor of claim 1 , wherein the motor assembly includes a rotor and a stator claim 1 , the rotor disposed radially inwardly relative to the stator and fixed for rotation with ...

Scroll compressor with an orbital disc lubrication system

The scroll compressor ( 1 ) includes a fixed scroll ( 7 ); an orbiting scroll ( 8 ); a drive shaft ( 16 ); a support arrangement ( 5 ) including a thrust bearing surface ( 9 ) on which is slidably mounted the orbiting scroll ( 8 ); a rotation preventing device configured to prevent rotation of the orbiting scroll ( 8 ) with respect to the fixed scroll ( 7 ), the rotation preventing device including orbital discs ( 28 ) respectively arranged in circular receiving holes ( 29 ) provided on the support arrangement ( 5 ), each orbital disc ( 28 ) being provided with an outer circumferential bearing surface ( 31 ) cooperating with an inner circumferential bearing surface ( 32 ) of the respective circular receiving hole ( 29 ); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces ( 32, 31 ) with oil supplied from an oil sump ( 50 ), the lubrication system including lubrication passages ( 41 ) formed within the support arrangement ( 5 ), each lubrication passage ( 41 ) including an oil outlet aperture ( 41.2 ) emerging in the inner circumferential bearing surface ( 32 ) of a respective circular receiving hole ( 29 ) and at a predetermined position where low load is applied on the respective orbital disc during rotation of the drive shaft.

Screw Compressor for a Utility Vehicle

A screw compressor for a utility vehicle has a housing, wherein, in the operationally ready and assembled state of the screw compressor, an oil sump is provided in the housing. A magnet is arranged in the oil sump. 1. A screw compressor for a utility vehicle , comprising:a housing, whereinin an operationally ready and assembled state of the screw compressor, an oil sump is provided in the housing, andwherein a magnet is arranged in the oil sump.2. The screw compressor as claimed in claim 1 , whereinthe screw compressor has no oil filter.3. The screw compressor as claimed in claim 1 , whereinthe housing has a housing body and a housing cover, andthe magnet is arranged in the housing body.4. The screw compressor as claimed in claim 1 , whereinthe housing has a housing body and a housing cover, andthe magnet is arranged in the housing cover.5. The screw compressor as claimed in claim 1 , further comprising:a baffle plate arranged in the housing, whereinin the operationally ready and assembled state of the screw compressor, the magnet is arranged below the baffle plate in oil.6. The screw compressor as claimed in claim 1 , whereinthe magnet is formed as a substantially cylindrical disc.7. The screw compressor as claimed in claim 6 , whereinthe magnet is fastened in the housing by a spacer.8. The screw compressor as claimed in claim 7 , whereinthe spacer has a screw bolt and/or a distancing element.9. The screw compressor as claimed in claim 1 , whereinthe magnet is fastened in the housing by a spacer.10. The screw compressor as claimed in claim 9 , whereinthe spacer has a screw bolt and/or a distancing element. This application is a continuation of PCT International Application No. PCT/EP2017/073551, filed Sep. 19, 2017, which claims priority under 35 U.S.C. § 119 from German Patent Application No. 10 2016 011 395.2, filed Sep. 21, 2016, the entire disclosures of which are herein expressly incorporated by reference.The present invention relates to a screw compressor for ...

SCROLL COMPRESSOR

A scroll compressor includes a stationary scroll; an orbiting scroll having a pair of first Oldham keyways on one surface thereof, the orbiting scroll defining a compression chamber in combination with the stationary scroll; a frame having a pair of second Oldham keyways and supporting the orbiting scroll; and an Oldham ring for inhibiting rotation of the orbiting scroll, the Oldham ring having a pair of first Oldham keys on one surface thereof and a pair of second Oldham keys on the other surface thereof, the first Oldham keys slidably engaging with the respective first Oldham keyways, the second Oldham keys slidably engaging with the respective second Oldham keyways. The Oldham ring includes at least a pair of projections on the other surface thereof, and the projections have a height such that when the Oldham ring is inclined during simple harmonic motion, one of the projections makes contact with the one surface of the orbiting scroll before each of the first Oldham keys is brought into contact with the corresponding first Oldham keyway at two locations. 1. A scroll compressor comprising:a stationary scroll;an orbiting scroll having a pair of first Oldham keyways on one surface thereof, the orbiting scroll defining a compression chamber in combination with the stationary scroll;a frame having a pair of second Oldham keyways and supporting the orbiting scroll; andan Oldham ring for inhibiting rotation of the orbiting scroll, the Oldham ring having a pair of first Oldham keys on one surface thereof and a pair of second Oldham keys on an other surface thereof, the first Oldham keys slidably engaging with the respective first Oldham keyways, the second Oldham keys slidably engaging with the respective second Oldham keyways,wherein the Oldham ring includes at least a pair of projections on the one surface thereof, andwherein the projections have a height such that when the Oldham ring is inclined during simple harmonic motion, one of the projections makes contact ...

COMPRESSOR

A compressor includes a casing with an oil retention space, an electric motor, a driveshaft, a compression mechanism, an oil supply passage, an oil discharge passage, an oil supply pump, and an oil discharge pump. The compression mechanism has a movable part, and an upper housing forming a crank chamber. The upper housing has an upper bearing that pivotally supports the driveshaft below the crank chamber. The oil supply passage leads oil in the oil retention space to the crank chamber. The oil discharge passage includes a main oil discharge passage, and a first inflow passage communicating between the main oil discharge passage and the crank chamber. An oil-recovery space is formed in a lower part of the upper housing below the crank chamber. The oil discharge passage includes a second inflow passage communicating between the main oil discharge passage and the oil-recovery space. 1. A compressor , comprising:a casing with an oil retention space being formed at a bottom of the casing;an electric motor accommodated in the casing;a driveshaft extending vertically and connected to the electric motor; a movable part connected to the drive shaft to be driven by the electric motor, and', 'an upper housing forming a crank chamber internally accommodating a connecting portion that connects an eccentric part of the driveshaft and the movable part, and the upper housing having an upper bearing that pivotally supports the driveshaft below the crank chamber;, 'a compression mechanism, accommodated in the casing, and having'}an oil supply passage leading oil in the oil retention space to the crank chamber, the oil supply passage being formed in the driveshaft; a main oil discharge passage that extends in an axial direction in the driveshaft, and', 'a first inflow passage communicating between the main oil discharge passage and the crank chamber;, 'an oil discharge passage including'}an oil supply pump configured to supply oil in the oil retention space to the oil supply passage; ...

COMPRESSOR WITH OIL PUMP ASSEMBLY

A compressor is provided and may include a shell, a motor assembly, a compression mechanism, a pump housing, and at least one pump. The shell includes a fluid disposed therein. The motor assembly is disposed within the shell and is drivingly engaged with a driveshaft. The compression mechanism is driven by the driveshaft. The pump housing is rotatably disposed within the shell for rotation relative to the driveshaft and relative to the shell. The at least one pump is rotatably disposed within the pump housing such that the at least one pump is in driving engagement with the driveshaft. 1. A compressor comprising:a shell having a fluid disposed therein;a motor assembly disposed within the shell and drivingly engaged with a driveshaft;a compression mechanism driven by the driveshaft;a pump housing rotatably disposed within the shell for rotation relative to the driveshaft and relative to the shell; andat least one pump rotatably disposed within the pump housing such that the at least one pump is in driving engagement with the driveshaft.2. The compressor of claim 1 , further comprising a radially extending portion extending outwardly from the pump housing.3. The compressor of claim 2 , wherein the radially extending portion is at least partially disposed within the fluid.4. The compressor of claim 1 , wherein the at least one pump applies a first torque on the pump housing in a first direction claim 1 , and the fluid applies a second torque on the pump housing in a second direction claim 1 , the second direction being opposite the first direction.5. The compressor of claim 1 , wherein the pump housing is not supported by the shell.6. The compressor of claim 1 , wherein the motor assembly includes a flange disposed annularly about the driveshaft and supported by the motor assembly.7. The compressor of claim 6 , wherein the flange includes an axially extending portion and a radially inwardly extending portion.8. A compressor comprising:a shell;a motor assembly disposed ...

COMPRESSOR BEARING HOUSING DRAIN

A bearing housing drain in a scroll compressor and method for controlling lubrication of a thrust bearing in the scroll compressor are disclosed. The compressor includes a compressor housing; a non-orbiting scroll member and an orbiting scroll member; an orbiting scroll hub having an upper end and a lower end, the lower end being disposed at a vertical elevation that is lower than the upper end; a thrust bearing; a lubricant sump; a housing drain cavity disposed within the compressor housing and configured to receive lubricant from the lubricant sump and to deliver the lubricant to the thrust bearing; and a bearing housing drain fluidly connected to the housing drain cavity and the lubricant sump. 1. A compressor , comprising:a compressor housing;a non-orbiting scroll member and an orbiting scroll member;an orbiting scroll hub having an upper end and a lower end, the lower end being disposed at a vertical elevation that is lower than the upper end;a thrust bearing;a lubricant sump;a housing drain cavity disposed within the compressor housing and configured to receive lubricant from a lubricant sump and to deliver the lubricant to the thrust bearing; anda bearing housing drain fluidly connected to the housing drain cavity and the lubricant sump, wherein the bearing housing drain receives a lubricant flow from the housing drain cavity and a portion of the lubricant flow is directed from the housing drain cavity through the bearing housing drain, and the bearing housing drain is configured to control a steady-state lubricant volume in the housing drain cavity.2. The compressor according to claim 1 , wherein a drain cavity end of the bearing housing drain is disposed in fluid communication with the housing drain cavity and is relatively lower in vertical elevation than a lower surface of the thrust bearing.3. The compressor according to claim 1 , wherein the bearing housing drain is disposed at an angle α with respect to a horizontal axis.4. The compressor according to ...

MOTOR VEHICLE VACUUM PUMP

A motor vehicle vacuum pump includes a pump housing which encloses a pump chamber, a pump rotor bearing, a pump rotor, a coupling unit rotationally fixed to the pump rotor which connects the pump rotor to a drive shaft, and a lubricant supply assembly which lubricates the pump chamber, the pump rotor bearing and/or the coupling unit. The pump housing has a lubricant inlet opening. The pump rotor is arranged in the pump chamber via the pump rotor bearing. The lubricant supply assembly includes a lubricant outlet opening and a lubricant supply duct which is arranged in the pump housing so that a lubricant is pumpable from the lubricant inlet opening towards the pump chamber, the pump rotor bearing and/or the coupling unit, to the lubricant outlet opening. A seal element is arranged in a region of, and a filter element is arranged in, the lubricant inlet opening, respectively. 17-. (canceled)8. A motor vehicle vacuum pump comprising:a pump housing configured to enclose a pump chamber, the pump housing comprising a lubricant inlet opening;a pump rotor bearing;a pump rotor comprising at least one movably mounted pump rotor blade, the pump rotor being arranged in the pump chamber via the pump rotor bearing;a coupling unit which is rotationally fixed to the pump rotor and which is configured to directly or indirectly connect the pump rotor to a drive shaft;a lubricant supply assembly configured to lubricate at least one of the pump chamber, the pump rotor bearing, and the coupling unit, the lubricant supply assembly comprising a lubricant outlet opening and at least one stationary lubricant supply duct which is arranged in the pump housing and which is configured so that a lubricant can be pumped therethrough from the lubricant inlet opening of the pump housing in a direction of at least one of the pump chamber, the pump rotor bearing, and the coupling unit, to the lubricant outlet opening;a seal element arranged in a region of the lubricant inlet opening; anda filter ...

COMPRESSOR FLOODBACK PROTECTION SYSTEM

A climate-control system may include a compressor, a condenser, an evaporator, a first sensor, a second sensor, a third sensor, and a control module. The compressor may include a motor and a compression mechanism. The condenser receives compressed working fluid from the compressor. The evaporator is in fluid communication with the compressor and disposed downstream of the condenser and upstream of the compressor. The first sensor may detect an electrical operating parameter of the motor. The second sensor may detect a discharge temperature of working fluid discharged by the compression mechanism. The third sensor may detect a suction temperature of working fluid between the evaporator and the compression mechanism. The control module is in communication with the first, second and third sensors and may determine whether a refrigerant floodback condition is occurring in the compressor based on data received from the first, second and third sensors. 1. A climate-control system comprising:a compressor having a motor and a compression mechanism;a condenser receiving compressed working fluid from the compressor;an evaporator in fluid communication with the compressor and disposed downstream of the condenser and upstream of the compressor;a first sensor detecting an electrical operating parameter of the motor;a second sensor detecting a discharge temperature of working fluid discharged by the compression mechanism;a third sensor detecting a suction temperature of working fluid between the evaporator and the compression mechanism; anda control module in communication with the first, second and third sensors and determining whether a refrigerant floodback condition is occurring based on data received from the first, second and third sensors.2. The climate-control system of claim 1 , wherein the control module determines whether the floodback condition is occurring based on a comparison between a calculated discharge-superheat-value and a predetermined discharge-superheat- ...

LUBRICATION SYSTEM

A mineral material processing plant, a crusher, a lubrication method and system, the system including a thrust bearing, a lubrication piston and adjusting piston arranged to be movable in a cylinder. The piston includes a first space configured to receive fluid and to continuously conduct the fluid to the thrust bearing. The cylinder and the piston define therebetween a second space configured to receive and hold fluid. The system is configured to, in response to detecting a downward movement of the piston, conduct fluid to the first space. 1. A lubrication system for a gyratory crusher , comprising:a thrust bearing, a lubrication piston and adjusting piston arranged to be movable in a cylinder; whereinthe piston comprises a first space configured to receive fluid and to continuously conduct the fluid to the thrust bearing; whereinthe cylinder and the piston define therebetween a second space configured to receive and hold fluid; and thatthe system is configured to in response to detecting a downward movement of the piston to conduct fluid to the first space.2. The lubrication system of claim 1 , wherein the system is further configured to in response to the pressure rising in the second space to conduct fluid from the second space to the first space.3. The lubrication system of claim 1 , further comprising a first channel with the outside of the piston.4. The lubrication system of claim 3 , further comprising a second channel formed between the side surface of the piston and the cylinder; and connecting the first space with the second space.5. The lubrication system of claim 4 , further comprising a third channel connecting the second channel to a supply of fluid.6. The lubrication system of claim 5 , further comprising a fourth channel connecting the second space to the first space.7. The lubrication system of claim 6 , further comprising a third space above the thrust bearing inside the cylinder configured to receive fluid from the thrust bearing.8. The ...

INTERNAL GEAR PUMP

An internal gear pump for forward and reverse operations, comprising: a pump housing () which comprises a first fluid port () and a second fluid port (), wherein in a first rotational direction, the first fluid port () is formed as a fluid outlet and the second fluid port () is formed as a fluid inlet, and in a second rotational direction, the first fluid port () is formed as a fluid inlet and the second fluid port () is formed as a fluid outlet; an internal gear () and an external gear () which together form delivery cells () in order to deliver a fluid; a first rotary bearing (D) which mounts the internal gear (); and a second rotary bearing (D) which mounts the external gear (); and comprising a lubricant feed which sets a fluid flow between the fluid ports () through the two rotary bearings (D D) in both rotational directions. 1. An internal gear pump for forward and reverse operations , comprising:a pump housing which comprises a first fluid port and a second fluid port, wherein in a first rotational direction, the first fluid port is formed as a fluid outlet and the second fluid port is formed as a fluid inlet, and in a second rotational direction, the first fluid port is formed as a fluid inlet and the second fluid port is formed as a fluid outlet;an internal gear and an external gear which together form delivery cells in order to deliver a fluid;a first rotary bearing which mounts the internal gear;a second rotary bearing which mounts the external gear; anda lubricant feed which sets a fluid flow between the fluid ports through the two rotary bearings in both rotational directions.2. The internal gear pump according to claim 1 , wherein the lubricant feed comprises at least one channeling structure which exhibits a reduced flow resistance and which is provided in order to specifically guide the fluid along a flow path through the internal gear pump.3. The internal gear pump according to claim 1 , further comprising a base which axially delineates the ...

Oil pump, engine cover and engine comprising the same

An oil pump is provided. The oil pump comprises a shell, a rotor mounting part disposed at an end of the shell, and a rotor mechanism disposed on the rotor mounting part. The shell has an inlet and an outlet and defines a low-pressure oil chamber and a high-pressure oil chamber therein. The high-pressure oil chamber and the low-pressure oil chamber are located at the same side of a periphery of the rotor mounting part side. An engine cover comprising the oil pump and an engine comprising the engine cover are also provided.

OIL SUPPLY MECHANISM OF ROTATING MACHINERY AND ROTATING MACHINERY HAVING OIL SUPPLY MECHANISM

An oil supply mechanism comprises: an oil pump device connected to a rotating shaft of a rotating machinery; a main oil supply passage formed in the rotating shaft substantially in the axial direction of the rotating shaft; and a bypass oil passage in communication with the main oil supply passage and allowing a part of lubricating oil in the main oil supply passage to flow out via the bypass oil passage. The bypass oil passage extends in a direction substantially transverse to the rotating shaft. The bypass oil passage is configured such that a radial distance from an outlet of the bypass oil passage to the axis of the rotating shaft is greater than the radius of the rotating shaft. 1. An oil supply mechanism of a rotating machinery comprising a rotating shaft , the oil supply mechanism comprising:a main oil supply passage formed in the rotating shaft substantially in an axial direction of the rotating shaft; anda bypass oil passage in communication with the main oil supply passage and allowing a part of lubricating oil in the main oil passage to flow out via the bypass oil passage,wherein the bypass oil passage extends substantially transversely to the rotating shaft, and the bypass oil passage is configured such that a radial distance between an outlet of the bypass oil passage and an axis of the rotating shaft is greater than a radius of the rotating shaft.2. The oil supply mechanism according to claim 1 , wherein a ratio of the radial distance to the radius ranges from 2 to 5.3. The oil supply mechanism according to claim 2 , wherein the ratio ranges from 2.5 to 4.4. The oil supply mechanism according to claim 1 , wherein the bypass oil passage comprises a first passage portion and a second passage portion connected to each other claim 1 , the first passage portion is in direct fluid communication with the main oil supply passage claim 1 , and a cross-sectional area of the first passage portion is greater than a cross-sectional area of the second passage ...

VACUUM PUMP

A vacuum pump includes a rotor and a housing, which define a vacuum chamber. Rotation of the rotor generates negative pressure in the vacuum chamber. The vacuum pump includes an oil introduction passage, which is connected to an oil pump to introduce oil into the vacuum pump, and an atmosphere communication passage, which opens in the atmosphere to introduce air into the vacuum pump. The vacuum pump further includes a valve and a spring, which serve as a communication control mechanism. The communication control mechanism provides communication between the vacuum chamber and the oil introduction passage and closes the atmosphere communication passage when the vacuum pump is driven. The communication control mechanism provides communication between the vacuum chamber and the atmosphere communication passage and closes the oil introduction passage when the vacuum pump is stopped. 1. A vacuum pump comprising:a rotor;a housing that accommodates the rotor and rotationally supports the rotor, wherein the rotor and the housing define a vacuum chamber, and rotation of the rotor generates negative pressure in the vacuum chamber;an oil introduction passage configured to be connected to an oil pump to introduce oil into the vacuum pump;an atmosphere communication passage that opens in the atmosphere to introduce air into the vacuum pump; anda communication control mechanism that provides communication between the vacuum chamber and the oil introduction passage and closes the atmosphere communication passage when the vacuum pump is driven, wherein the communication control mechanism provides communication between the vacuum chamber and the atmosphere communication passage and closes the oil introduction passage when the vacuum pump is stopped.2. The vacuum pump according to claim 1 , wherein a support that supports the rotor;', 'an oil supply groove located in an inner circumferential surface of the support and communicating with the vacuum chamber; and', 'a communication hole ...

Refrigerant Compressor System

Refrigerant compressor installation comprising at least three compressors which are arranged in parallel between an intake conduit and a pressure conduit and which each comprise a lubricant sump unit, wherein the compressors, when in operation, work in such a way that the respective pressures in the respective lubricant sump units of the respective compressors form a pressure cascade according to which the compressors have a successively slightly decreasing pressure in the respective lubricant sump unit in a defined cascade sequence, and wherein the lubricant sump units are connected to each other in a manner corresponding to the cascade sequence by way of a lubricant conduit system for lubricant transport, and wherein each lubricant sump unit comprises a port to which is connected an insert element which on the one hand establishes communication with the lubricant conduit system and on the other hand is configured such that it predetermines, for the respective lubricant sump unit, a lubricant level from which lubricant is transported to the lubricant sump unit that follows next in the cascade sequence.

OIL CIRCUIT, OIL-FREE COMPRESSOR PROVIDED WITH SUCH OIL CIRCUIT AND A METHOD TO CONTROL LUBRICATION AND/OR COOLING OF SUCH OIL-FREE COMPRESSOR VIA SUCH OIL CIRCUIT

An oil circuit for lubrication and cooling of an oil-free compressor with an oil reservoir and a rotary oil pump to drive oil to the compressor element and/or the motor via an oil pipe. The rotary oil pump has a rotor mounted on a rotation shaft, and is driven by the motor of the compressor. The oil circuit is provided with a bypass pipe and a pressure-actuated bypass valve which guide a portion of the oil back to the oil reservoir without this portion of the oil passing through the compressor element and/or the motor during its way back to the oil reservoir. The oil circuit is further provided with an oil cooler in the bypass pipe. The bypass valve is in the oil pipe. 128-. (canceled)29. An oil circuit for lubrication and cooling of an oil-free compressor comprising a motor with a variable speed and a compressor element driven by said motor ,whereby this oil circuit is provided with an oil reservoir with oil and a rotary oil pump configured to drive oil from the oil reservoir through an inlet channel upstream the rotary oil pump to the compressor element and/or the motor via an oil pipe;whereby this rotary oil pump is provided with a rotor mounted on a rotation shaft, whereby this rotary oil pump has a swept volume, and whereby this rotary oil pump is driven by the motor of the compressor element;whereby the oil circuit is further provided with a return pipe configured to guide oil from the compressor element and/or the motor back to the oil reservoir;whereby the oil circuit is further provided with a bypass pipe and a pressure-actuated bypass valve which are configured to directly guide a portion of the oil between the rotary oil pump and the compressor element and/or the motor back to the oil reservoir without this portion of the oil passing through the compressor element and/or the motor during its way back to the oil reservoir; andwhereby the oil circuit is further provided with an oil cooler,wherein the oil cooler is placed in the bypass pipe and the bypass ...

Internal gear pump

Provided is an internal gear pump integrally provided with a plain bearing requiring fewer machining steps, allowing inexpensive manufacture, and offering a highly stable seizing property. An internal gear pump ( 1 ) comprises: a trochoid ( 4 ), in which an inner rotor ( 3 ) having a plurality of outer teeth is eccentrically and rotatably accommodated in an outer rotor ( 2 ) having a plurality of inner teeth, the outer teeth meshing with the inner teeth, and in which a suction-side chamber for suctioning liquid and a discharge-side chamber for discharging the liquid that has been suctioned into the suction-side chamber are formed between the inner teeth and outer teeth; a drive shaft ( 9 ) fixed to the inner rotor ( 3 ); a casing ( 5 ) in which is formed a recess ( 5 a ) for accommodating the trochoid ( 4 ); and a cover ( 6 ) for closing off the recess ( 5 a ) of the casing ( 5 ). The cover ( 6 ) has a plain bearing part ( 11 ) for rotatably supporting the drive shaft ( 9 ), and the plain bearing part ( 11 ) is formed by injection-molding a thermoplastic resin composition directly onto the cover ( 6 ).

ROTOR, PERMANENT MAGNET ELECTRIC MOTOR HAVING THE ROTOR, FLUID MACHINE HAVING THE PERMANENT MAGNET ELECTRIC MOTOR, AND METHOD FOR MANUFACTURING THE ROTOR

A rotor includes a rotor core which is formed by stacking steel plates and includes a first through hole in a center part, at least one second through hole in the vicinity of the first through hole and a rivet insertion hole; a plurality of permanent magnets which are disposed in a circumferential direction of the rotor core and are embedded in a stacking direction of the steel plates; a main shaft which is shrink-fitted or press-fitted in the first through hole of the rotor core; a pin made of an insulating material and inserted in the second through hole of the rotor core; and an upper end plate and a lower end plate which are disposed on both ends of the rotor core in the stacking direction and are fixed by a rivet inserted in the rivet insertion hole. 1. A rotor comprising:a rotor core formed by stacking steel plates and including a first through hole provided in a center part thereof, at least one second through hole provided in the vicinity of the first through hole and a rivet insertion hole;a plurality of permanent magnets disposed in a circumferential direction of the rotor core and embedded in a stacking direction of the steel plates;a main shaft shrink-fitted or press-fitted in the first through hole of the rotor core;a pin press-fitted in the at least one second through hole of the rotor core and made of an insulating material; andan upper end plate and a lower end plate each disposed on corresponding ends of the rotor core in the stacking direction and fixed by a rivet inserted in the rivet insertion hole.23-. (canceled)4. The rotor of claim 1 , wherein second through holes including the at least one second through hole are disposed at positions symmetrical to a center of the first through hole and each of the second through holes are identically distanced from the center.5. A permanent magnet electric motor comprising:a stator including a stator core formed in a cylindrical shape by stacking steel plates and a wiring mounted on the stator core in ...

COMPRESSOR

A compressor includes a compression mechanism that compresses refrigerant; a main shaft that transmits a rotational driving force to the compression mechanism; a balance weight provided below the compression mechanism and integrated with the main shaft, the balance weight having a cylindrical outer peripheral surface centered at the main shaft; and an oil sump portion provided below the balance weight and stores lubricating oil to be supplied to the compression mechanism. The balance weight has an annular oil-receiving recessed portion in an upper surface, the oil-receiving recessed portion being centered at the main shaft and integrated with the balance weight. The balance weight has a hollow portion in a lower surface, the hollow portion extending in part of the lower surface in a peripheral direction around the main shaft and being integrated with the balance weight. The oil-receiving recessed portion communicates with at least part of the hollow portion. 1. A compressor comprising:a compression mechanism configured to compress refrigerant;a main shaft that transmits a rotational driving force to the compression mechanism;a balance weight provided below the compression mechanism and provided on the main shaft, the balance weight having a cylindrical outer peripheral surface centered at the main shaft; andan oil sump portion provided below the balance weight and that stores lubricating oil to be supplied to the compression mechanism,wherein the balance weight has an annular oil-receiving recessed portion in an upper surface, the oil-receiving recessed portion being centered at the main shaft and integrated with the balance weight,wherein the balance weight has a hollow portion in a lower surface, the hollow portion extending in part of the lower surface in a peripheral direction around the main shaft and being integrated with the balance weight, andwherein the oil-receiving recessed portion communicates with at least part of the hollow portion.2. The compressor of ...

LUBRICANT SUPPLY PASSAGE FOR COMPRESSOR

A fluid machine includes a first rotor rotatable about a first axis, a second rotor rotatable about a second axis, a casing for supporting said first rotor and said second rotor, a sump having a volume of lubricant contained therein, a first lubricant passage for supplying lubricant from the sump to a dynamic interface associated with the first rotor, and a second lubricant passage for supplying lubricant from the sump to a dynamic interface associated with the second rotor. A pressure differential created within the fluid machine supplies the lubricant from the sump to the first lubricant passage and the second lubricant passage. 1. A fluid machine comprising:a first rotor rotatable about a first axis;a second rotor rotatable about a second axis;a casing for supporting said first rotor and said second rotor;a sump having a volume of lubricant contained therein;a first lubricant passage for supplying lubricant from the sump to a dynamic interface associated with the first rotor; anda second lubricant passage for supplying lubricant from the sump to a dynamic interface associated with the second rotor, wherein a pressure differential created within the fluid machine supplies the lubricant from the sump to the first lubricant passage and the second lubricant passage.2. The fluid machine of claim 1 , wherein during operation of the fluid machine claim 1 , the pressure differential is formed between a high pressure adjacent at least one end of the casing and low pressure at a central location of the first rotor and the second rotor.3. The fluid machine of claim 1 , wherein said lubricant is supplied from said sump to said first lubricant passage and said second lubricant passage simultaneously.4. The fluid machine of claim 1 , wherein said first rotor is rotatably mounted to the casing without roller element bearings.5. The fluid machine of claim 1 , wherein the first rotor includes a first shaft rotatably mounted to the casing claim 1 , wherein at least one surface of ...

Scroll compressor

A scroll compressor includes a body container that is a hermetically sealed container; a fixed scroll that is fixed to an upper portion of an inside of the body container; an orbiting scroll that is disposed below the fixed scroll; a rotary drive shaft including an oil passing hole that connects an upper side and a lower side in the shaft; a frame that is fixed to an inner peripheral surface of the body container to slidably support the orbiting scroll; a thrust plate that is disposed between a lower surface of the orbiting scroll and a thrust support surface of the frame; an Oldham ring that is accommodated in the frame; and an orbiting-side Oldham groove that guides the Oldham ring, wherein a circumferential groove that communicates with the orbiting-side Oldham groove is formed in the lower surface of the orbiting scroll.

MECHANICAL VACUUM PUMP FOR A MOTOR VEHICLE

A mechanical vacuum pump for a motor vehicle includes a stationary pump housing, a pump rotor rotatably mounted in the pump housing, a plug-coupling element connected for a conjoint rotation with the pump rotor, and a lubricant supply for lubricating the plug-coupling element. The lubricant supply has a lubricant supply channel arranged in the pump housing and a lubricant transport channel arranged in the pump rotor. The lubricant supply channel is arranged so that a lubricant is pumped from a lubricant inlet to a transfer opening. The lubricant transport channel is arranged so that the lubricant is pumped from an acceptance opening to a lubricant outlet opening. The transfer opening and the acceptance opening are temporarily in a fluid communication with each other at least once when the pump rotor rotates. The lubricant outlet opening is arranged with an eccentricity in an end wall of the pump rotor. 15-. (canceled)6. A mechanical vacuum pump for a motor vehicle , the mechanical vacuum pump comprising:a pump housing configured to be stationary;a pump rotor comprising an end wall, the pump rotor being rotatably mounted in the pump housing;a separate pump-side plug-coupling element which is connected for a conjoint rotation with the pump rotor; and a lubricant supply channel arranged in the pump housing, the lubricant supply channel comprising a lubricant inlet and a transfer opening, the lubricant supply channel being arranged so that a lubricant can be pumped from the lubricant inlet in a direction of the separate pump-side plug-coupling element to the transfer opening, and', 'a lubricant transport channel arranged in the pump rotor, the lubricant transport channel comprising an acceptance opening and a lubricant outlet opening, the lubricant transport channel being arranged so that the lubricant can be pumped from the acceptance opening to the lubricant outlet opening,', 'wherein,', 'the transfer opening and the acceptance opening are arranged so that they are ...

Compressor and refrigeration cycle apparatus

A compressor includes a container provided with an oil reservoir which is provided at a bottom portion of the container to allow oil to be collected in the oil reservoir. The container is provided such that a rotary shaft is inclined relative to the direction of gravity or to be laid horizontal. In the container, an electric motor mechanism, the rotary shaft, a compression mechanism and a frame which fixes the compression mechanism to the container are provided. To the container, a suction pipe is connected to cause refrigerant to flow into space between the frame and the electric motor mechanism. In the frame, a suction port is formed to cause the refrigerant having flowed into the space to flow into the compression mechanism, and each of the suction portion and a connection port of the suction pipe, which connects with the container is located at a position which is higher than or the same as the level of the rotary shaft as seen in a rotation axial direction. A rib is formed in a first flow passage which extends downwards in the direction of gravity from the connection port, extends through an area located above the oil reservoir, and reaches the suction port.

OIL SUPPLYING MECHANISM, AND HORIZONTAL COMPRESSOR HAVING SAME

Disclosed are an oil supplying mechanism, and a horizontal compressor having same. Disclosed is an oil supply mechanism for a horizontal compressor, the horizontal compressor including a housing, a motor, a rotating shaft driven by the motor, and a bearing pedestal supporting the rotating shaft. The oil supply mechanism includes a separating member, the separating member being in the form of a ring having a central hole for allowing the bearing pedestal to pass therethrough, and the separating member being configured to separate the housing into an oil storage chamber and a motor chamber with the motor provided therein. The separating member is constructed to have an annular groove opening into the oil storage chamber. The oil supply mechanism and the horizontal compressor having the oil supply mechanism can reduce or minimize free space in the motor chamber and/or facilitate a quality inspection on the structure of a pump. 1. An oil supply mechanism for a horizontal compressor , wherein the horizontal compressor comprises a housing , a motor , and a rotating shaft driven by the motor , and a bearing seat supporting the rotating shaft ,the oil supply mechanism comprises a partition member, the partition member is ring-shaped and has a central hole allowing the bearing seat to pass through, and the partition member is configured to separate out in the housing an oil storage chamber and a motor chamber in which the motor is provided,wherein the partition member is configured to have an annular groove opening toward the oil storage chamber.2. The oil supply mechanism according to claim 1 , wherein a radially outer portion of the partition member is connected to an inner peripheral surface of the housing and a radially inner portion of the partition member is connected to an outer peripheral surface of the bearing seat.3. The oil supply mechanism according to claim 1 , wherein the housing comprises a housing body and an end cover claim 1 , and a radially outer portion ...

SCROLL COMPRESSOR PROVIDED WITH AN ORBITAL DISC LUBRICATION SYSTEM

The scroll compressor includes a fixed scroll; an orbiting scroll (); a drive shaft (); a support arrangement () on which is slidably mounted the orbiting scroll (); a rotation preventing device configured to prevent rotation of the orbiting scroll () with respect to the fixed scroll, the rotation preventing device including orbital discs () respectively arranged in circular receiving holes () provided on the support arrangement (), each orbital disc () being provided with an outer circumferential bearing surface () configured to cooperate with an inner circumferential bearing surface () provided on the respective circular receiving hole (); and a lubrication system configured to lubricate the inner and outer circumferential bearing surfaces () with oil supplied from an oil sump, the lubrication system including an oil reservoir () in which part of the oil supplied to the lubrication system is collected during operation of the scroll compressor, and a plurality of lubrication passages () provided on the support arrangement (), each lubrication passage () including an oil outlet aperture () emerging in a bottom surface of a respective circular receiving hole () and an oil inlet aperture () emerging in the receiving chamber (). 1. A scroll compressor including:a fixed scroll comprising a fixed base plate and a fixed spiral wrap,an orbiting scroll including an orbiting base plate and an orbiting spiral wrap, the fixed spiral wrap and the orbiting spiral wrap forming a plurality of compression chambers,a drive shaft including a driving portion configured to drive the orbiting scroll in an orbital movement, the drive shaft being rotatable around a rotation axis,a support arrangement including a thrust bearing surface on which is slidably mounted the orbiting scroll, the support arrangement and the orbiting scroll forming a receiving chamber in which the driving portion of the drive shaft is movably disposed, a plurality of orbital discs respectively arranged in circular ...

Refrigerant compressor including an oil level sensor arrangement

The refrigerant compressor includes a compressor casing ( 2 ); an oil sump ( 13 ) arranged in the compressor casing ( 2 ); and an oil level sensor arrangement ( 14 ) configured to detect an oil level in the oil sump ( 13 ), the oil level sensor arrangement ( 14 ) including a tubular element ( 16 ) secured to the compressor casing ( 2 ) and a floating element ( 17 ) surrounding the tubular element ( 16 ) and being movably mounted with respect to the tubular element ( 16 ). The compressor casing ( 2 ) includes a passage opening ( 24 ) and dimensions of the tubular element ( 16 ), the floating element ( 17 ) and the passage opening ( 24 ) are defined to allow an insertion and a removal of the tubular element ( 16 ) and the floating element ( 17 ) into and out of the compressor casing ( 2 ) through the passage opening ( 24 ).

膨胀机一体型压缩机

本发明提供一种膨胀机一体型压缩机。膨胀机一体型压缩机(200)具有：密闭容器(1)、配置在密闭容器(1)内的上部的压缩机构(2)、配置在密闭容器(1)内的下部的膨胀机构(3)、连结压缩机构(2)和膨胀机构(3)的轴(5)、配置于压缩机构(2)与膨胀机构(3)之间的油泵(6)。油泵(6)将贮存在贮油部(25)的油通过吸入路而供给到压缩机构(2)。在吸入路中设置有使被油泵(6)吸入的油通过的过滤器(65)。

Compressor

본 발명에 의한 압축기는, 전동부와 압축부 사이에 설치되어 냉매 유로와 오일 유로를 분리하는 유로분리부를 포함하고, 상기 유로분리부는 제1 격벽부와 제2 격벽부를 가지며, 상기 제1 격벽부는 상기 케이싱의 내주면과 상기 압축부의 토출공 사이에 배치되고, 상기 제2 격벽부는 상기 토출공과 밸런스 웨이트 사이에 배치될 수 있다. 이에 의해, 압축부와 전동부 사이에서 냉매 유로와 오일 유로를 분리됨으로써 오일이 저유공간으로 원활하게 회수될 수 있다. The compressor according to the present invention includes a flow path separation unit installed between the transmission unit and the compression unit to separate the refrigerant flow path and the oil flow path, and the flow path separation unit has a first partition wall part and a second partition wall part, and the first partition wall part It is disposed between the inner circumferential surface of the casing and the discharge hole of the compression part, and the second partition wall part may be disposed between the discharge hole and the balance weight. Accordingly, the refrigerant flow path and the oil flow path are separated between the compression unit and the transmission unit, so that the oil can be smoothly recovered into the storage space.

压缩机

本发明提供一种压缩机，其包括流路分离部，所述流路分离部设置在电动部与压缩部之间，用于分离制冷剂流路和油流路，所述流路分离部具有第一分隔壁部和第二分隔壁部，所述第一分隔壁部配置在所述外壳的内周面与所述压缩部的排出孔之间，所述第二分隔壁部配置在所述排出孔与平衡块之间。由此，通过在压缩部与电动部之间分离冷剂流路和油流路，使油顺畅地回收到储油空间。

Vacuum pump

내용 없음. No content.

机动车真空泵

本发明涉及一种机动车真空泵(2)，其中，润滑剂供应组件(30)用于润滑泵腔室(23)和/或泵转子滑动轴承组件(28)和/或耦合元件(34)，其中，所述润滑剂供应组件(30)在泵壳体(10)中具有至少一个固定润滑剂供应管道(46)，通过该管道，润滑剂可以通过供应管道从泵壳体(10)的润滑剂入口开口(36)，沿着泵腔室(23)和/或泵转子滑动轴承组件(28)和/或耦合元件(34)的方向，向润滑剂出口开口(48)的方向泵送。其中，在润滑剂入口开口(36)区域设置密封件(45)，在润滑剂入口开口(36)设置过滤件(40)，密封件(45)和过滤件(40)形成组合式密封/过滤元件(38)。

Rotary type vacuum pump

a pump unit having first and second cylinders and first and second rotors for rotating in the cylinders; an oil storage casing for protecting the pump unit; a pump housing for cooperating with the oil storage casing for storing oil in the casing: a front cover disposed between the pump housing and the pump unit or suporting shafts of the rotors; an oil pump mounted on the rotor shafts for supplying oil to the pump unit and the attached parts controlling the pump unit; a lubrication circuit having an oil suction duct having an inlet port for supplying oil to the pump unit; an oil filter mounted at the outside of the pump housing for providing purified oil from the oil pump; a check valve mounted at the lower end of the pump suction nozzle; a rear cover supporting the terminating ends of the rotor shafts; and an excess pressure discharge valve mounted at the lower end of the rear cover.

Oil pump for scroll compressor

내용 없음. No content.

COMPRESSOR LUBRICATION SYSTEM

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 131 919 A (51) МПК F04C 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018131919, 06.09.2018 (71) Заявитель(и): ДЖОЙ ГЛОБАЛ СЕРФЕЙС МАЙНИНГ ИНК (US) Приоритет(ы): (30) Конвенционный приоритет: 06.09.2017 US 62/554,838 Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" Стр.: 1 A 2 0 1 8 1 3 1 9 1 9 R U A (57) Формула изобретения 1. Маслозаполненный винтовой компрессор, содержащий корпус, содержащий впуск и выпуск; ротор, опирающийся внутри корпуса на подшипник, причем ротор способен вращаться для сжатия воздуха от впуска к выпуску, когда компрессор находится в рабочем режиме, и ротор способен вращаться без сжатия воздуха, когда компрессор находится в режиме холостого хода; и насос, выполненный с возможностью подачи масла в подшипник, только когда компрессор находится в режиме холостого хода. 2. Компрессор по п. 1, дополнительно содержащий бак сепаратора, выполненный с возможностью отделения масла от воздуха, сжимаемого ротором. 3. Компрессор по п. 2, в котором в баке сепаратора давление нагнетается во время рабочего режима компрессора и сбрасывается, во время режима холостого хода компрессора. 4. Компрессор по п. 3, в котором насос соединен с прохождением текучей среды с баком сепаратора для откачки масла из бака сепаратора. 5. Компрессор по п. 2, дополнительно содержащий клапанный узел, выполненный с возможностью направления масла из насоса в подшипник, когда компрессор находится в режим холостого хода. 6. Компрессор по п. 5, в котором клапанный узел выполнен с возможностью направления масла из насоса в бак сепаратора, когда компрессор находится в рабочем режиме, обходя подшипник. 7. Компрессор по п. 5, в котором клапанный узел содержит отводной клапан с электромагнитным приводом. 8. Компрессор по п. 1, дополнительно содержащий мотор, соединенный с насосом; и 2 0 1 8 1 3 1 9 1 9 (54) СИСТЕМА ...

Lubricating device for rotary compressor

(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。

Fluid Compressor Or Pump Apparatus

本发明涉及一种装置，其可呈泵或压缩机的形式，并且其能用来压缩或加速流体，比如空气、气体、气态混合物和/或液体。尤其，本发明提供了一种机构，其中流体能连续地进入每个构成压缩腔的径向隔室，并且然后从其中排出。

Patent RU2018131919A3

ВУ“? 2018131919” АЗ Дата публикации: 13.12.2021 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2018131919/12(052080) 06.09.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/554,838 06.09.2017 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА СМАЗКИ ДЛЯ КОМПРЕССОРА Заявитель: ДЖОЙ ГЛОБАЛ СЕРФЕЙС МАЙНИНГ ИНК, 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты см. п см. Примечания [ ] приняты во внимание следующие пункты: р [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е04С 29/02 (2006.01) ЕО4С 18/16 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е01С1/00, ЕО1С1/16, Е01М1/00, ЕО1М1/Т6, Е04С18/00, Е04С18/16, Е04С29/00, Е04С29/02, Е16К21/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе Соозе, РаБеагсв, КОРТО, ОЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к ...

Screw compressor

FIELD: machine building.SUBSTANCE: present invention relates to screw compressor. Compressor consists of compressor element (2) with housing (4), in which screw rotors are installed on bearings, and reduction gear (3) with housing (14), having mounting surface attached to mounting surface of housing (4). Element (2) is equipped with oil circuit with inlet and outlet holes and cooling jacket with inlet and outlet holes. Input and output holes for oil and cooling medium are located in mounting surface of housing (4). Inlet and outlet holes are connected to channels for supply and removal of oil and cooling medium, which are built-in inside reduction gear (3). Cases (4, 14) are sealed at location of mounting surfaces by means of seal attached between mounting surfaces and located around bearings on reduction gear side (3). Seals intended for sealing of connections between inlet and outlet holes for oil of housing (4), on one side and channels for supply and removal of oil of housing (14), on the other side, are outside the boundary of the seal, intended for mutual sealing of housings (4, 14).EFFECT: invention is aimed at improvement of reliability of screw compressor.18 cl, 5 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 689 237 C2 (51) МПК F04C 18/16 (2006.01) F04C 29/02 (2006.01) F04C 29/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F04C 18/16 (2018.08); F04C 29/025 (2018.08); F04C 29/04 (2018.08) (21)(22) Заявка: 2017139848, 12.04.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): АТЛАС КОПКО ЭРПАУЭР, НАМЛОЗЕ ВЕННОТСХАП (BE) Дата регистрации: 24.05.2019 (56) Список документов, цитированных в отчете о поиске: FR 773311 A, 16.11.1934. DE 17.04.2015 BE 2015/5250; 26.06.2015 BE 2015/5396 (43) Дата публикации заявки: 17.05.2019 Бюл. № 14 102004057255 A1, 04.08.2005. FR 986715 A, 03.08.1951. US 2006029510 A, 09.02.2006. RU 2547211 C2, 10.04.2015. (45) Опубликовано: 24.05.2019 Бюл ...

Hermetic electric compressor

Internal gear pump

本发明提供一种能够削减机械加工工序并以低成本制造且一体地设有滑动轴承部的内啮合齿轮泵。内啮合齿轮泵具有的余摆线式组件构成为，具有多个外齿的内转子以外齿与内齿啮合、且偏心的状态自由旋转地收容在具有多个内齿的外转子内，在内齿和外齿之间形成有将液体吸入的吸入侧容积室和将吸入到该吸入侧容积室的液体喷出的喷出侧容积室，内啮合齿轮泵具有：驱动轴，其固定于内转子；壳体，其形成有用于收容余摆线式组件的凹部；盖，其对壳体的凹部进行封堵，在盖具有将驱动轴支承成自由旋转的滑动轴承部，滑动轴承部通过对热塑性树脂组合物直接进行注塑成形而形成在盖上，在滑动轴承部的表面具有凹坑或凸起、或者未与驱动轴的贯通孔连通的润滑槽。

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 ...

Fluid compressor

본 발명의 유체압축기(1)는, 압축기구부(2)와 오일통로(311)를 가지는 회전축(300)과 전동기(600)와 베어링(401, 803)과 오일을 오일통로(311)를 통하여 공급하는 원심형 펌프부(900)를 구비한다. 회전축(300)은 주축부(302)와 이 주축부(302)에 편심하여 설치된 크랭크핀(301)과 주축부(302)의 작은 지름의 부베어링 지지부(303)를 일체로 가진다. 오일통로(311)는 부베어링 지지부(303)의 하단으로부터 주축부(302)의 하부까지 연장되는 제 1 오일통로(311a)와, 이 제 1 오일통로(311a)에 연통됨과 동시에, 크랭크핀(301)의 상단까지 연장되는 제 2 오일통로(311b)를 가진다. 제 2 오일통로(311b)는 제 1 오일통로(311a)보다 작은 지름이고, 또한 바깥쪽에 위치하는 통로부분을 가짐과 동시에, 크랭크핀(311)의 평면범위 내에 복수로 형성되어 있다. The fluid compressor (1) of the present invention supplies a rotary shaft (300) having a compression mechanism (2) and an oil passage (311), an electric motor (600), bearings (401, 803), and oil through an oil passage (311). The centrifugal pump unit 900 is provided. The rotating shaft 300 integrally has a main shaft portion 302, a crank pin 301 provided eccentrically with the main shaft portion 302, and a minor bearing support portion 303 of the main shaft portion 302. The oil passage 311 communicates with the first oil passage 311a extending from the lower end of the sub-bearing support portion 303 to the lower portion of the main shaft portion 302 and the first oil passage 311a. It has a second oil passage 311b extending to the upper end of the 301. The second oil passage 311b has a diameter smaller than that of the first oil passage 311a and has a passage portion located outward, and is formed in plural within the planar range of the crank pin 311.

Screw compressor

具备：定涡盘(1)；动涡盘(2)，其与定涡盘(1)组合而形成压缩室(25)，在一方的面具有一对第一十字键槽(4)；框架(20)，其支承动涡盘(2)，具有一对第二十字键槽(5)；以及十字环(6)，其抑制动涡盘(2)的自转，在一方的面具有能够滑动地嵌合于第一十字键槽(4)的一对第一十字键(6ab)，在另一方的面具有能够滑动地嵌合于第二十字键槽(5)的一对第二十字键(6ac)，十字环(6)在另一方的面具有至少一对突起部(7)，突起部(7)为如下的高度：在十字环(6)进行简谐振动而倾斜时，在第一十字键(6ab)在第一十字键槽(4)的2个部位接触之前，突起部(7)与动涡盘(2)的一方的面接触。

Hermetric compressor and refrigeration cycle device having the same

본 발명은 밀폐형 압축기 및 이를 적용한 냉동사이클 장치에 관한 것이다. 본 발명은 케이싱의 외부 또는 내부에 토출되는 냉매로부터 오일을 분리하는 오일분리기가 설치되고 그 오일분리기에서 분리되는 오일은 상기 구동모터의 동력에 의해 작동하는 오일펌프로 회수하도록 구성함으로써, 냉매와 오일이 효과적으로 분리되고 제조비용을 절감할 수 있다. 또, 분리된 냉매가 압축기로 재유입되는 것을 방지하여 냉동사이클의 냉동성능을 향상시킬 수 있다. 또, 상기 구동모터의 동력을 이용하여 오일펌프를 구동시킴에 따라 압축기의 구성을 간소화하고 제조비용을 절감할 수 있다. The present invention relates to a hermetic compressor and a refrigeration cycle apparatus using the same. According to the present invention, there is provided an oil separator for separating oil from a refrigerant discharged to the outside or inside of the casing, and the oil separated from the oil separator is recovered by an oil pump operated by the power of the drive motor, Can be effectively separated and the manufacturing cost can be reduced. In addition, it is possible to prevent the separated refrigerant from being re-introduced into the compressor, thereby improving the refrigeration performance of the refrigeration cycle. In addition, by driving the oil pump using the power of the drive motor, the structure of the compressor can be simplified and the manufacturing cost can be reduced. 밀폐형 압축기, 오일펌프, 오일회수, 용적펌프 Hermetic compressor, oil pump, oil recovery, displacement pump

Oil feeding structure for scroll compressor

본 발명에 따른 스크롤 압축기의 오일 공급 구조는 내부에 오일 저유부가 형성되는 케이싱; 상기 케이싱에 연결되어 상기 케이싱 내부로 냉매가 유입되도록 하는 흡입 포트; 상기 케이싱의 내측면에 고정되며, 적어도 상기 오일 저유부에 저장된 유체를 흡입하는 흡입부가 형성되는 오일 펌프; 상기 케이싱의 외측에 연결되어, 상기 케이싱의 외측에 제공되는 오일 분리기에서 회수된 오일이 상기 케이싱 내부로 유입되도록 하는 오일 회수 포트; 및 상기 케이싱의 내측에 위치되어 상기 오일 회수 포트와 연통되며, 상기 오일 분리기에서 분리되어 상기 오일 회수 포트를 이동하는 오일이 상기 흡입부로 유입 가능하도록 하는 오일 회수부가 포함된다. The oil supply structure of the scroll compressor according to the present invention includes a casing having an oil reservoir formed therein; A suction port connected to the casing to allow refrigerant to flow into the casing; An oil pump fixed to an inner side of the casing, the oil pump having a suction unit configured to suck at least the fluid stored in the oil storage unit; An oil recovery port connected to an outside of the casing to allow oil recovered from an oil separator provided outside of the casing to flow into the casing; And an oil recovery part positioned inside the casing to communicate with the oil recovery port, and to allow the oil separated from the oil separator to move the oil recovery port to the suction part. 본 발명에 의해서 압축기가 저온 난방 조건하에서 작동되어 저온의 액냉매에 의해 상기 오일 저유부의 냉매와 오일이 상분리되는 경우에도 오일 회수부에 의해서 오일이 회수되어 펌프 커버의 오일 흡입부 측으로 배출되거나, 상기 오일 펌핑부로 직접 유입됨에 따라, 냉매 만이 오일 펌핑부로 유입되는 것이 방지된다. According to the present invention, even when the compressor is operated under a low temperature heating condition and the refrigerant and the oil reservoir of the oil reservoir are separated in phase by low temperature liquid refrigerant, the oil is recovered by the oil recovery unit and discharged to the oil intake side of the pump cover. As it directly flows into the oil pumping unit, only refrigerant is prevented from entering the oil pumping unit. 또한, 오일 펌핑부로 오일의 유입이 가능하게 됨에 따라 마찰 부위로 지속적인 오일의 급유가 가능하게 되는 효과가 있다. In addition, as the oil can be introduced into the oil pumping unit, the oil can be continuously supplied to the friction portion. 오일 펌프, 오일 회수부, Oil pump, oil return unit,

Scroll compressor

본 발명에 의한 스크롤 압축기에 관한 것이다. 본 발명은, 오일이 밸런스웨이트와 교반되면서 비산되는 것을 줄이면서도 오일을 압축실에 직접 주입할 수 있도록 함으로써, 상기 구동모터의 회전속도변경에 관계없이 상기 압축실로 오일을 균일하게 공급할 수 있다. 그리고 상기 구동축의 오일유로 중간에서 가스가 쉽게 배출될 수 있도록 하는 동시에 트로코이드기어 펌프를 채용함으로써 오일이 원활하게 펌핑되어 흡상될 수 있도록 할 수 있다. 그리고 동기 릴럭턴스 모터를 채용함으로써 오일의 공급량이 감소되더라도 압축기의 성능과 운전영역을 넓힐 수 있다. A scroll compressor according to the present invention. According to the present invention, the oil can be injected directly into the compression chamber while reducing the oil being scattered with the balance weight, thereby uniformly supplying the oil to the compression chamber regardless of the rotational speed of the drive motor. In addition, the gas can be easily discharged in the middle of the oil flow path of the drive shaft, and at the same time, by adopting a trocoid gear pump, the oil can be smoothly pumped and sucked up. In addition, by adopting a synchronous reluctance motor, the performance and operating range of the compressor can be expanded even if the oil supply amount is reduced. 스크롤 압축기, 오일주입, 오일차단판, 동기 릴럭턴스 Scroll Compressor, Oil Injection, Oil Block, Synchronous Reluctance

Scroll-type refrigerant compressor

본 발명은 스크롤식 냉매 압축기에 관한 것이다. 본 발명의 압축기는, 페룰 (ferrule, 2) 에 의해 규정되고 흡입 체적과 압축 체적을 포함하는 밀봉 챔버; 및 흡입측에 배치되어 있으며 스테이터 (7) 와 로터 (8) (로터는 구동 샤프트 (26) 에 단단히 연결되어 있음) 를 포함하는 전기 모터를 포함한다. 스테이터 (7) 는, 압축기의 이동 페룰 (2) 과 함께 환형 체적 (13) 을 규정하고 또 모터의 코일 단부를 포함하면서 압축 체적 측을 향하고 있는 챔버 (11) 를 규정하는 중간 케이싱 (6) 에 의해 둘러싸여 있다. 압축 체적의 반대 측을 향하는 중간 케이싱의 단부가 압축 체적의 반대 측을 향하는 또는 압축 체적으로부터 후퇴되어 있는 스테이터의 단부에 배치되어 있다. 그리고, 페률의 가스 유입구에 도착하는 가스 중 적어도 일부를 코일 단부를 포함하는 챔버 (11) 내로 운반하기 위한 수단 (14) 이 제공되어 있다. The present invention relates to a scroll type refrigerant compressor. The compressor of the present invention comprises: a sealed chamber defined by a ferrule 2 and comprising a suction volume and a compression volume; And an electric motor disposed on the suction side and including a stator 7 and a rotor 8 (the rotor is firmly connected to the drive shaft 26). The stator 7 defines an annular volume 13 together with the moving ferrule 2 of the compressor and in an intermediate casing 6 which defines a chamber 11 which is directed towards the compression volume side, including the coil end of the motor. Surrounded by. An end of the intermediate casing facing the opposite side of the compression volume is arranged at the end of the stator facing the opposite side of the compression volume or retracted from the compression volume. Then, a means 14 for delivering at least a portion of the gas arriving at the gas inlet of the permeability into the chamber 11 comprising the coil end is provided. 냉매 압축기 Refrigerant compressor

Bearing lubricating system for vortex type compressor

一种涡旋式压缩机(20)，其具有抽吸腔室(98)和排放腔室(110)。其还包括涡旋件(56、58)、中压腔室(81)、储油槽(46)、电机(32)和曲轴(34)。曲轴有纵向通路(52、54)。曲轴有第一通路(624)；滚柱(82)有内外圆周面，第二通路(622)在其间延伸，第一和第二通路流体连通，轴承(57)设置在滚柱的外圆周面与涡旋件之间。设有油接收空间(55)，以及第三通路(626)。

Dry vacuum pump apparatus and method of cooling the same

드라이진공펌프장치는, 냉각수와 같은 냉각제를 이용하여, 자기-가열값이 높은 대전류회로부품들, 통상적으로는 인버터의 스위칭장치들을 냉각하기 위한 고효율 냉각유닛을 포함하므로 그 사이즈가 소형이다. 상기 드라이진공펌프장치는, 펌프유닛 및 상기 펌프유닛을 작동시키기 위한 모터를 포함하는 드라이진공펌프, AC전원으로부터의 AC 전력을 소정의 주파수를 갖는 AC 전력으로 변환하고, 상기 AC 전력을 상기 모터에 공급하기 위한 인버터, 상기 인버터를 포함하는 제어전자회로조립체를 그 내부에 수용하는 전기기기인클로저, 상기 드라이진공펌프 및 상기 드라이진공펌프의 운전감시센서를 그 내부에 수용하는 펌프인클로저, 상기 전기기기인클로저와 상기 펌프인클로저 사이에 개재되고, 그 안에서 순환하는 냉각제를 구비한 액냉식 격벽, 및 통합구조체로서 상기 전기기기인클로저, 상기 펌프인클로저, 및 상기 액냉식 격벽을 그 내부에 하우징하는 외부 인클로저를 포함한다. The dry vacuum pump apparatus is small in size because it includes a high-efficiency cooling unit for cooling large-current circuit components having high self-heating values, typically switching devices of the inverter, using a coolant such as cooling water. The dry vacuum pump apparatus includes: a dry vacuum pump including a pump unit and a motor for operating the pump unit; an AC generator for converting AC power from an AC power source into AC power having a predetermined frequency, An electrical equipment enclosure containing therein a control electronics assembly including the inverter; a pump enclosure for containing therein the operation and monitoring sensors of the dry vacuum pump and the dry vacuum pump; And an outer enclosure housing the electric appliance enclosure, the pump enclosure, and the liquid-cooled bulkhead as an integrated structure, the liquid enclosure having a liquid coolant interposed between the pump enclosure and the circulating coolant therein, .

Bearing lubrication system for a scroll compressor

스크롤 콤프레사는 흡입 압력하에 유체를 받아들이는 흡입 압력실(98)과 배출 압력하에 유체를 배출하는 배출 압력실(110)을 갖고 있으며, 흡입 압력실과 배출 압력실에 연결된 스크롤 부재(56,58), 고정 및 궤도 스크롤 부재에 의하여 형성된 중간 압력실(81), 오일 저장조(46), 모터(32) 및 모터와 궤도 스크롤 부재에 연결된 크랭크샤프트(34)를 포함함. 크랭크샤프트는 오일 저장조까지 연장된 길이 방향의 오일 통로(52,54)와 전술한 오일 통로를 방사방향의 외부에 연결하는 제1 통공(624)을 갖고 있음. 로울러(82)는 크랭크샤프트 외주 표면 주위에 설치되어 궤도 스크롤 부재와 크랭크샤프트를 연결함. 로울러는 내주 및 외주 표면과 전술한 제1 통공에 연결되어 오일 통로에서 이송되는 오일을 외부로 공급하는 제2 통공(622)을 갖고 있음. 베어링(57)은 로울러와 궤도 스크롤 부재 사이에 설치되었음. 오일 수집 공간부(55)는 베어링에 근접되게 형성되었으며, 궤도 스크롤의 이면(636)과 로울러 및 크랭크샤프트의 단부 표면에 의하여 형성됨. 중간 압력실과 오일 수집 공간부는 서로 연결되었음. 오일은 베어링을 통하여 제2 통공으로부터 오일 수집 공간부로 이송됨. 전술한 오일 수집 공간과 고정 및 궤도 스크롤 부재 사이의 중간 압력 공간부 사이에 제3의 통공(626)이 형성되어 오일이 전술한 제3의 통공을 통하여 오일 수집 공간으로부터 중간 압력 공간으로 공급되게 되었음. The scroll compressor has a suction pressure chamber 98 for receiving fluid under suction pressure and a discharge pressure chamber 110 for discharging fluid under discharge pressure, and scroll members 56 and 58 connected to the suction pressure chamber and the discharge pressure chamber. And an intermediate pressure chamber 81, an oil reservoir 46, a motor 32, and a crankshaft 34 connected to the motor and the orbital scroll member, formed by the fixed and orbital scroll members. The crankshaft has longitudinal oil passages 52, 54 extending to the oil reservoir and a first aperture 624 for connecting the aforementioned oil passages to the radially outside. The rollers 82 are installed around the crankshaft outer circumferential surface to connect the orbiting scroll member and the crankshaft. The roller has a second through hole 622 connected to the inner circumferential and outer circumferential surfaces and the aforementioned first through hole to supply the oil conveyed from the oil passage to the outside. Bearing 57 is installed between the roller and the track scroll member. The oil collection space 55 is formed close to the bearing and is formed by the back surface 636 of the orbital scroll and the end surfaces of the rollers and crankshafts. ...

Vacuum pump with cooling device

本发明涉及将半导体制造设施的处理腔抽真空的真空泵的有效冷却技术。本发明提供具有冷却装置的真空泵，所述真空泵实现一种新型真空泵冷却方法，其通过在真空泵的转子中循环油而将真空泵的内部温度保持于恒定温度，从而能够避免真空泵的温度突然增加，保证进行过程和操作真空泵的稳定性(例如在操作开始平稳地润滑轴承)，并且经济地管理和维修设施；所述真空泵使用外部泵或内部泵作为用于循环冷却真空泵的油的泵并且应用使用冷却水或珀尔帖元件的热交换方法，从而能够改进冷却效率并且设计适合工厂条件的最佳布局；并且所述真空泵应用的方法是通过检查转子温度和油温根据吸入泵的气体的流速自动可变地控制油温，从而能够增加真空泵的操作效率。

Screw-rotor machine, system of power conversion and method of power conversion

FIELD: power engineering. SUBSTANCE: screw-rotor machine comprises two screw rotors 102 and a vessel 101, having an inlet hole 114 and an outlet hole 113. Rotors 102 are equipped with axial journals 104, installed in bearings 106. The bearing 106 is lubricated with oil and is installed in a bearing chamber 105, which communicates with a working space 115 of the machine via a seal 107 of the gap. The bearing chamber 105 also communicates with an oil supply pipeline 111 and a drainage pipeline 108, connected to the pressure, which is lower than the lowest pressure in the working space 115, when it is open towards the outlet hole 113. EFFECT: provision of energy conversion at relatively low levels of capacity with improved efficiency, higher reliability. 11 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 453 731 (13) C2 (51) МПК F04C 29/02 (2006.01) F04C 18/16 (2006.01) F01C 21/04 (2006.01) F01C 1/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2009140309/06, 31.03.2008 (24) Дата начала отсчета срока действия патента: 31.03.2008 (72) Автор(ы): ЭХМАН Хенрик (SE), ЭРИКССОН Лейф (SE) (73) Патентообладатель(и): СВЕНСКА РОТОР МАШИНЕР АБ (SE) R U Приоритет(ы): (30) Конвенционный приоритет: 02.04.2007 SE 0700819-6 (43) Дата публикации заявки: 10.05.2011 Бюл. № 13 2 4 5 3 7 3 1 (45) Опубликовано: 20.06.2012 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: GB 2008684 A, 06.07.1977. RU 2076246 C1, 27.03.1997. SU 1765522 A1, 30.09.1992. GB 242702 A, 13.12.2006. US 5727926 A, 17.03.1998. JP 2003161114 A, 06.06.2003. 2 4 5 3 7 3 1 R U (86) Заявка PCT: SE 2008/050367 (31.03.2008) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.11.2009 (87) Публикация заявки РСТ: WO 2008/121070 (09.10.2008) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, стр.3, ООО "Юридическая фирма Городисский и Партнеры", пат.пов. С.А.Дорофееву, рег. № 146 (54) ВИНТОВАЯ МАШИНА, СИСТЕМА ...

Expander integrated compressor

膨張機一体型圧縮機（２００）は、密閉容器（１）と、密閉容器（１）内の上部に配置された圧縮機構（２）と、密閉容器（１）内の下部に配置された膨張機構（３）と、圧縮機構（２）と膨張機構（３）とを連結するシャフト（５）と、圧縮機構（２）と膨張機構（３）との間に配置されたオイルポンプ（６）とを備えている。オイルポンプ（６）は、オイル貯まり（２５）に貯められたオイルを吸入路を通じて圧縮機構（２）に供給する。吸入路には、オイルポンプ（６）に吸入されるオイルが通過するようにストレーナ（６５）が設置されている。 The expander-integrated compressor (200) includes a hermetic container (1), a compression mechanism (2) disposed in the upper part of the hermetic container (1), and an expansion disposed in the lower part of the hermetic container (1). A mechanism (3), a shaft (5) connecting the compression mechanism (2) and the expansion mechanism (3), and an oil pump (6) disposed between the compression mechanism (2) and the expansion mechanism (3) And. The oil pump (6) supplies the oil stored in the oil reservoir (25) to the compression mechanism (2) through the suction path. A strainer (65) is installed in the suction passage so that oil sucked into the oil pump (6) passes through.

Fluid compressor

내용 없음. No content.

Oil pump structure of scroll compressor

본 발명은 스크롤 압축기에 관한 것으로서, 상세하게는 오일 펌프에 의해 펌핑된 냉매가 고온의 열에 의해 기화되어 오일 펌핑부로 역류하는 것이 방지되는 스크롤 압축기의 오일 펌프 구조에 관한 것이다. The present invention relates to a scroll compressor, and more particularly, to an oil pump structure of a scroll compressor in which the refrigerant pumped by the oil pump is prevented from vaporizing by high temperature heat and flowing back to the oil pumping part. 본 발명에 따른 스크롤 압축기의 오일 펌프 구조는 상측에 구동축이 삽입되는 펌프 바디; 상기 펌프 바디의 하측에 삽입되며 상기 구동축과 함께 회전되는 펌핑 부재; 상기 펌프 바디와 상기 펌핑 부재 사이에 형성되는 오일 펌핑부; 상기 펌프 바디의 하측에 구비되며, 흡입홀 및 토출홀이 형성되는 플레이트; 상기 플레이트의 하측에 구비되며, 구동축 내부에서 발생된 냉매 가스가 상기 오일 펌핑부로 역류되는 것을 방지하는 역류 방지 밸브가 포함되는 역류 방지 부재; 및 상기 역류 방지 부재의 하측에 구비되며, 흡입부가 형성되는 펌프 커버;가 포함된다. The oil pump structure of the scroll compressor according to the present invention includes a pump body having a drive shaft inserted thereon; A pumping member inserted below the pump body and rotated together with the drive shaft; An oil pumping part formed between the pump body and the pumping member; A plate provided below the pump body and having suction holes and discharge holes formed therein; A non-return member provided below the plate and including a non-return valve for preventing a refrigerant gas generated inside the drive shaft from flowing back into the oil pumping unit; And a pump cover provided below the backflow preventing member and having a suction part formed therein. 본 발명에 의해서 고온의 열에 의해 기화된 냉매 가스가 오일 펌핑부로 역류되는 것이 방지되는 효과가 있다. According to the present invention, the refrigerant gas vaporized by high temperature heat is prevented from flowing back to the oil pumping unit. 또한, 냉매 가스가 오일 펌프로 역류되는 것이 방지됨으로써, 오일 펌프의 정상적인 작동이 가능하게 되어, 오일의 급유가 원활해지는 효과가 있다. In addition, since the refrigerant gas is prevented from flowing back to the oil pump, normal operation of the oil pump is enabled, and oil supply of oil is smoothed.

Rotary compressor

내용 없음. No content.

Scroll compressor

The present invention relates to a scroll compressor. The present invention provides an oil recovery pump for recovering oil discharged from the shell, thereby effectively recovering oil discharged from the compressor. By forming the differential pressure hole at a position where the differential pressure hole communicates with the compression chamber after the completion of suction so that the oil stored in the internal space of the shell is supplied to the compression chamber using the pressure difference between the internal space of the high pressure shell and the compression chamber as the low pressure portion , It is possible to prevent oil from being sucked in due to oil while smoothly supplying oil to the compression unit even in low-speed operation.

Oil Pumping apparatus for hermetic compressor

본 발명은 밀폐형 압축기의 오일펌핑장치에 관한 것이다. 본 발명에서는 크랭크축(30)의 오일유로(32)로 오일을 펌핑하기 위해 상기 크랭크축(30)의 하단부에 슬리이브(40)를 압입하고, 상기 슬리이브(40)의 내부에는 상대적으로 회전되지 않는 흡상부재(50)를 설치한다. 상기 흡상부재(50)그 상기 슬리이브(40)의 내면과 소정의 간격을 가지고 설치되고, 그 외주면을 따라 나선유로(52)가 형성되어 있다. 이와 같은 흡상부재(50)는 프레임(20)에 직접 장착된 지지브라켓(60)에 의해 지지된다. 그리고 상기 크랭크축(30) 역시 프레임(20)에 직접 지지되어 있다. 상기 지지브라켓(60)에는 선단부에 체결편(65)을 구비하는 연결아암(62)이 구비되는데, 상기 연결아암(62)은 체결구인 체결나사(70)에 의해 상기 프레임(20) 하면의 체결공(23)에 체결된다. 이와 같은 본 발명에 의하면 슬리이브(40)와 흡상부재(50) 사이의 상대위치가 정확하게 설정되고 동작중에 변하지 않게 되어 오일흡상성능이 높아지는 이점이 있다. The present invention relates to an oil pumping device of a hermetic compressor. In the present invention, in order to pump oil into the oil passage 32 of the crankshaft 30, the sleeve 40 is press-fitted to the lower end of the crankshaft 30, the inside of the sleeve 40 is relatively rotated The suction member 50 is installed. The suction member 50 is provided at a predetermined interval from the inner surface of the sleeve 40, and a spiral flow path 52 is formed along the outer peripheral surface thereof. The suction member 50 is supported by the support bracket 60 mounted directly to the frame 20. The crankshaft 30 is also directly supported by the frame 20. The support bracket 60 is provided with a connecting arm 62 having a fastening piece 65 at a distal end thereof, wherein the connecting arm 62 is fastened to the bottom surface of the frame 20 by a fastening screw 70 which is a fastener. Is fastened to the ball 23. According to the present invention as described above there is an advantage that the relative position between the sleeve 40 and the suction member 50 is set accurately and does not change during operation, the oil suction performance is increased. 밀폐형 압축기, 오일, 펌핑 Hermetic compressors, oil, pumped

SCREW MACHINE, ENERGY CONVERSION SYSTEM AND METHOD FOR ENERGY CONVERSION

1. Винтовая машина, предпочтительно расширитель, содержащая два винтовых ротора (102) и корпус (101), имеющий впускное отверстие (114) и выпускное отверстие (113), при этом корпус (101) образует рабочее пространство (115), в котором с возможностью вращения и в зацеплении друг с другом расположены винтовые роторы (102), причем, по меньшей мере, один из роторов (102) снабжен, по меньшей мере, одной осевой шейкой (104), установленной в подшипниках (106), которые смазаны маслом и расположены в подшипниковой камере (105), сообщающейся с рабочим пространством (115) через уплотнение (107) зазора, отличающаяся тем, что подшипниковая камера (105) также сообщается с маслоподводящим трубопроводом (111) и дренажным трубопроводом (108), связанным с давлением, которое ниже, чем самое низкое давление в рабочем пространстве (115), когда оно открыто к выпускному отверстию (113). ! 2. Машина (1) по п.1, отличающаяся тем, что масляный сепаратор (109) расположен в дренажном трубопроводе (108) для отделения масла от среды, протекающей через дренажный трубопровод (108). ! 3. Машина (1) по п.2, отличающаяся тем, что масляный сепаратор (109) соединен с маслоподводящим трубопроводом (111) через масляный насос (110). ! 4. Машина (1) по п.2 или 3, отличающаяся тем, что масляный сепаратор (109) соединен с насосом откачки через трубопровод для рабочей среды. ! 5. Машина (1) по п.2 или 3, отличающаяся тем, что масляный сепаратор (109), через соединительный трубопровод (112) для рабочей среды, соединен с трубопроводом (6), соединенным с выпускным отверстием (113) винтового расширителя. ! 6. Система преобразования энергии, содержащая расширитель (1), конденсатор (2), насос (3) и испаритель (4), расположенные последовательно в замкнутом РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2009 140 309 (13) A (51) МПК F04C 29/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2009140309/06, 31.03.2008 (71) Заявитель(и): СВЕНСКА ...

Scoroll compressor

본 발명은 스크롤 압축기에 관한 것이다. 본 발명에 의한 스크롤 압축기는, 배압실의 오일이 바깥쪽 압축실과 안쪽 압축실로 번갈아 공급됨에 따라 압축실에서의 마찰손실을 줄일 수 있을 뿐만 아니라 압축되는 냉매가 상대적으로 높은 안쪽 압축실에서 바깥쪽 압축실로 누설되는 것을 방지하여 압축기의 효율을 높일 수 있다. 스크롤 압축기, 연통유로, 마찰손실

Oil pump structure, compressor and heat exchange system

本发明提供了一种油泵结构、压缩机和换热系统。油泵结构，包括：油泵座，油泵座具有凹腔；内转子，内转子位于凹腔内；套设在内转子外侧的外转子，外转子位于凹腔内，且内转子与外转子偏心设置；滚动体，滚动体位于凹腔内，且滚动体处于凹腔的周向内壁与外转子的外部之间。本申请解决了现有技术中因外转子与油泵座装配不良而导致异常磨损和产生噪音的问题。

Rotor compressor and heat transmission equipment with it

本发明提供了一种转子压缩机及具有其的换热设备。转子压缩机包括：曲轴，曲轴具有沿其轴向延伸的通油孔；支撑结构，支撑结构支撑曲轴，以防止曲轴发生沿其径向方向的运动；动力结构，动力结构通过通油孔将油池内的润滑介质输送至曲轴与支撑结构之间。本发明有效地解决了现有技术中转子压缩机的曲轴与支撑结构之间润滑不充分的问题。