Motor-driven compressor

A motor-driven compressor includes an electric motor driven by a motor driver, which includes a switching element that converts DC voltage from a battery to AC voltage. A control unit controls the switching operation of the switching element. A temperature detector detects the temperature of the switching element. A voltage detector detects DC voltage applied to the switching element from the battery. The control unit suspends the switching operation of the switching element when the temperature detected by the temperature detector rises to a predetermined temperature threshold. The control unit also reduces counter electromotive force generated by the electric motor. The temperature threshold includes a first temperature threshold, corresponding to a withstand temperature of the switching element, and a second temperature threshold, which is higher than the first temperature threshold. The control unit switches the temperature threshold between the first and second temperature thresholds.

Scroll compressor

A compressor may include non-orbiting scroll, an orbiting scroll, and a bearing housing. The non-orbiting scroll may include a recess. The orbiting scroll may be intermeshed with the non-orbiting scroll to from a plurality of compression pockets therebetween. The orbiting scroll may include first and second apertures. The first aperture may communicate with one of the compression pockets. The second aperture may communicate with the recess. The bearing housing may support the orbiting scroll and cooperate with the orbiting scroll to define a chamber therebetween. The chamber may communicate with the first and second apertures.

少なくとも２つの共働コンプレッサ素子を有する液体注入式コンプレッサ

(57)【要約】 【課題】 従来の液体注入式コンプレッサに使用する分 離装置は、容積が大きく、空気受けは騒音の問題があ る。これらの欠点を解決した圧縮された気体と潤滑液体 の効率的な、分離を可能とするコンプレッサを提供す る。 【解決手段】 ハウジングの内部へ接続されている入口 と出口を備えている前記液体注入式コンプレッサで、回 転可能なコンプレッサ素子のシャフトがハウジングの内 部に位置付けられ、かつ気体が透過可能な材料で製作さ れた少なくとも１つの本体が、このシャフトへ固定され て、出口を実際に完全に密閉し、かつ圧縮された気体だ けを通すフィルターを形成している。

Scroll compressor

(57)【要約】 【課題】 固定及び可動スクロール１０，１１間の圧縮 室１４内やクランク軸８の軸受２８，２９に油を供給す るようにしたスクロール圧縮機Ａに対して、電動モータ ７の損失熱や上記油で吸入ガスが加熱されるのを防いで 圧縮機Ａの性能を向上維持させるとともに、圧縮したガ スから油を分離するためのコストアップを防止する。 【解決手段】 駆動手段７及び油溜り１ａを吐出室２２ に配置し、可動スクロール１１の鏡板１１ａに、圧縮室 １４で圧縮したガスを吐出するための吐出口１１ｃを形 成し、クランク軸８内に、その可動スクロール１１の吐 出口１１ｃから吐出されたガスを吐出室２２に流出させ る吐出ガス通路８ｅを設ける。

Scroll type fluid displacement device

스크롤형 유체 변위 장치는 원형 단부판과 이 원형 단부판의 축방향 단부면으로부터 연장하는 나선형 랩을 구비한 한 쌍의 스크롤을 포함한다. 한 쌍의 스크롤은 나선형의 곡선형 표면 사이에 다수의 선접촉을 형성하도록 각도를 이루면서 반경방향으로 오프셋되어, 유체 포켓을 형성한다. 구동 기구는 일스크롤에 대해 상대 궤도 운동하도록 다른 스크롤에 작동 가능하게 연결되어, 유체 포켓의 체적을 변화시킨다. 각각의 스크롤 부재의 나선형 요소는 계단식 단면적을 구비한다. 이에 따라, 유체 변위 장치의 스크롤 부재의 나선형 요소들의 기계적 강도는 증가되며, 유체 변위 장치는 내구성과 효율이 증가된다. The scroll fluid displacement device includes a pair of scrolls having a circular end plate and a helical wrap extending from the axial end face of the circular end plate. The pair of scrolls are radially offset at an angle to form a plurality of line contacts between the helical curved surfaces to form fluid pockets. The drive mechanism is operatively connected to the other scroll to move relative to orbit relative to the scroll, thereby changing the volume of the fluid pocket. The spiral element of each scroll member has a stepped cross-sectional area. Accordingly, the mechanical strength of the helical elements of the scroll member of the fluid displacement device is increased, and the fluid displacement device is increased in durability and efficiency.

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-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

Rotary sliding-vane compressor

A vane-type compressor especially adapted for compressing refrigerant in air-conditioning systems has a vane carrying rotor mounted on fixed center bearings and surrounded by an eccentrically positioned cylinder guiding the vane motion and confining and controlling the compression process which is free to swing toward the rotor and maintain a line of tangency contact therewith providing a direct barrier between the discharge and suction sides of the compression chamber. A spring loaded end plate pressed against one end of the cylinder serves as a relief valve to purge liquid such as lubricant which might collect in the compression cavities during a shut-down period and which could otherwise create a lock-up condition. A fixed front bearing plate or end head has a cup-shaped housing piloted thereon surrounding the cylinder and providing a rear bearing mounting for the rotor. The front plate has an inlet port supplying the compression cavities between the rotor and cylinder. The cylinder has an outlet adjacent the tangency seal line of contact between the rotor and cylinder which discharges to a chamber between the housing and cylinder that is surrounded by porous fibrous strips effective to separate lubricant entrained in the compressed refrigerant. The refrigerant is discharged to an outlet port in the front bearing plate and the separated lubricant collects in the bottom of the housing and is circulated back to the bearings and vane slots of the rotor.

Liquid separator

1493569 Separating liquid from compressor discharge ATLAS COPCO A B 7 Jan 1976 [24 Jan 1975] 00527/76 Heading F1N In a compressor installation in which most of the liquid e.g. oil mixed with the gas delivered by a liquid-injected compressor 1 is collected in a container 6 and reinjected through a conduit 11, 15, 17, the remaining oil is removed by a separator 8 and is forced by the pressure in the delivery conduit 10 through a conduit 18 into the conduit 11, 15, 17. The conduit 18 includes a restriction 19 and is connected to the conduit 11, 15, 17 downstream of a cooler 12, a restriction 13 and a filter 14 and upstream from a shut-off valve 16.

Compressor unit

1510493 Rotary compressors with cooling and sealing liquid flow control HOKUETSU KOGYO CO Ltd 15 Aug 1975 [2 Sept 1974] 34121/75 Heading F1N Liquid mixed with the gas delivered by a liquid cooled rotary compressor is separated immediately on its discharge to a chamber 10, the separated liquid being delivered by a pressure drainage pump 15 to a compressed gas receiving tank 17 for subsequent injection through a nozzle 25 into the working chamber(s) 1 at a rate determined by a regulator 24. The compressor is of the vane, screw, worm, centrifugal or turbine types. A pump 22 or the pressure in the tank 17 forces the liquid collected in the tank 17 through a cooler 20 and the regulator 24 to the nozzle 25. During full or partial unloading of the compressor a valve 7 is moved to throttle or stop the flow of gas entering the compressor through an intake opening 6. The resulting reduction in the delivery pressure causes a check-valve 11 to close. In order to reduce the power consumption during unloading the supply of liquid to the nozzle 25 is reduced by the regulator 24, a piston 37 thereof being movable by the valve 7 to a position restricting the flow area through the regulator. Gas in the tank 17 flows through a separator 27, a line 28 and a valve 29 to a point of use. The nozzle 25 may be located in a slide valve (34), Fig. 5 (not shown) movable by fluid-pressure to change the outlet flow area of the compressor.

Liquid-cooled rotary compressor

1. РОТОРНЫЙ КОМПРЕССОР С ЖИДКОСТНЫМ ОХЛАЖЦЕНИЕМ, содержащий корпус с камерами всасывани , сжати  и нагнетани , расположенные в корпусе взаимодействующие ведущий и ведомый роторы, сообщенную с камерами сжати  разгрузочную камеру с размещенным в ней регулирующим клапаном, установленным с возможностью возвратно-поступательного перемещени  параллельно ос м роторов, имек цим внутреннюю полость и сообщенные с ней отверсти  дл  подачи в камеры сжати  охлаждающей , смазывающей и уплотн ющей жидкости и св занным посредством штока с поршнем, размещенным в цилиндре закрепленном на корпусе и подключенном к источнику управл ющей среды под давлением,, сообщенный с разгрузочной камерой резервуар дл  сжатого газа и жидкости и насос дл  подачи последней в камеры сжати  причем корпус и клапан имеют сообщенные друг с другом каналы дл  прохода охлаждающей, смазывающей и уплотн ющей жидкости, и канал -корпуса подключен к резервуару через указанный насос а канал клапана сообщен с его полостью и отверсти ми, отличающийс  тем, что, с целью повышени  эффективности работы компрессора путем поддержани  оптимального соотношени  между объемами сжимаемого газа и подаваемой в камеры сжати  охлаждающей, смазывающей и уплотн ющей жидкости, каналы корпуса и клапана соединены с образованием магистрали переменного проходного сечени , измен ющегос  при перемещении регулирующего клапана. 2.Компрессор по п. 1, отличающийс  тем, что каналы корпуса и клапана образованы сквозными пазами, выполненными в контактиСО рующих стенках соответственно корпуса и клапана и частично перекрьшаемыми при перемещении последнего. 3.Кбмпрессор по п. 1, отличающийс  тем, что корпус и клапан имеют полые трубчатые коаксиальные друг другу выступы, причем выступ клапана расположен внутри :о эо выступа корпуса, и каналы корпуса и клапана образованы сквозными пазами, вьтолненными в контактирующих стенках :л их выступов и частично перекрываемыю ми при перемещении клапана, а каналпаз клапана сообщен с полостью клапана и отверсти ми ...

Compressor plant

A screw compressor with liquid injection wherein the units previously disposed separately from one another, such as the air filter, liquid separator, and so on, are integrated into a single housing. Various compartments are formed in the housing by means of partitions, such that the compartments provide for good separation of entrained liquid from the compressed air being achieved because of large flow cross-section, maximum utilization of the available flowpath and multiple deflection of the current of compressed air. The compact construction results in a substantially smaller overall compressor size than that of comparable known compressor plants, in a reduction of manufacturing cost and simplification of the assembly of a compressor plant.

Compressor plant and method of compressing gas in such plant

FIELD: compression of gaseous media, air in particular, sucked from atmosphere at high degree of compression. SUBSTANCE: circulating loop of plant formed by compressor, connecting pipe line, settler and cooling liquid pipe line is used for circulating the cooling water free from oil and lubricants. Cooling water is delivered to cooler under action of pressure in settler. Circulating loop is provided with water preparation device which prevents formation of sediments of minerals. Water preparation device is made in form of polarizing unit for imparting electrical charge to foreign matter moved by cooling water; it may be provided with two permanent electrodes fed from external voltage supply source. Compression effected in compressor is close to isothermal compression. During compression, gas is cooled by mist of cooling water. Water is circulating in closed circulating loop and is subjected to repeated cycles of preparation. Water is delivered to compressor in such amount and such low temperature that temperature of gas at outlet is below or equal to it at inlet. Plant may be provided with screw compressor. Air saturated with water is fed as compressible gas. Larger part of air is injected into compression part of compressor through its housing. Compressor plant is provided with electrical control system. EFFECT: increased degree of compression at ecological safety. 17 cl, 4 dwg, 1 tbl Гоэссбтгс ПЫ сэ (19) РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ ВИ "” 2 153 601 ' (51) МПК? 13) С2 Е 04 С 29/04 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 97112882/06, 24.11.1995 (24) Дата начала действия патента: 24.11.1995 (30) Приоритет: 29.12.1994 ОЕ Р 4447097.5 (46) Дата публикации: 21.01.2000 (56) Ссылки: Ц$ 4968231 А, 06.11.1990. ЗЦ 772494 А, 15.10.1980. $Ц 1138052 А, 30.01.1985. $Ц 1543117 АЛ, 15.02.1990. СН 660773 АЗ, 15.06.1987. СВ 1413426 А, 12.11.1975. (85) Дата перевода заявки РСТ на национальную фазу: 29.07.1997 (86) Заявка РСТ: ЕР ...

LIQUID INJECTED COMPRESSOR at least two cooperating compressor elements.

Vloeistofgeïnjecteerde compressor met minstens twee samenwerkende compressorelementen (2 en 3) die in een behuizing (1) zijn opgesteld en waarvan er minstens één wentelbaar is en met een as (7,8,13,14) in de behuizing (1) gelagerd is, waarbij de compressor voorzien is van een inlaat (22) en een uitlaat (17-18-19) die met de binnenkant van de behuizing (1) in verbinding staan en zich doorheen de behuizing (1) uitstrekken, daardoor gekenmerkt dat een as (14) van een wentelbaar compressorelement (3) in de uitlaat (17-18-19) in de behuizing (1) gelegen is en op deze as (14) een lichaam (20) vastgemaakt is uit gas doorlatend cellulair materiaal met open cellen, die een filter vormt die de uitlaat (17-18-19) nagenoeg volledig afsluit en enkel het samengeperst gas doorlaat. Liquid-injected compressor with at least two co-operating compressor elements (2 and 3) arranged in a housing (1), at least one of which is rotatable and with a shaft (7,8,13,14) mounted in the housing (1), the compressor having an inlet (22) and an outlet (17-18-19) communicating with the inside of the housing (1) and extending through the housing (1), characterized in that an axis ( 14) of a rotatable compressor element (3) is located in the outlet (17-18-19) in the housing (1) and on this shaft (14) a body (20) is attached of open-cell gas permeable cellular material, which forms a filter that almost completely closes the outlet (17-18-19) and only lets the compressed gas through.

Compressor plant

To design a compressor system with a screw-type compressor, the housing of which has cavities for air guidance and oil separation, in an economical way for small delivery quantities, there is a disc-shaped housing with a longitudinal dimension corresponding essentially to the rotor length, and in this housing the compressed air flowing out of the compressor and mixed with oil is deflected in a radial and a peripheral direction for oil separation. The oil separator, the oil filter and the air filter are attached as separate units to the end face of this housing. The bearing plate of the drive motor is designed as a mechanical transmission space.

Screw pump

Изобретение относится к винтовому насосу. Винтовой насос в однопоточном, двухвальном исполнении содержит два винта (1, 2) и корпус (3), охватывающий винты (1, 2) с образованием нагнетательных камер (4), ограничиваемых его внутренней боковой поверхностью, а также камеру всасывания (5) для всасываемой среды и камеру (6) сжатия для приема среды, перекачиваемой винтами (1, 2). Корпус (3) насоса установлен в камере (6) сжатия и закреплен в ней, так что камера (6) сжатия по меньшей мере частично окружает корпус (3) насоса. Оба винта (1, 2) установлены с внешней подшипниковой опорой. В камере (6) сжатия предусмотрены сепарационные устройства для разделения перекачиваемой многофазной смеси на газовую и жидкую фазы. Между камерой (6) сжатия и камерой (5) всасывания предусмотрен короткозамкнутый трубопровод (13) для подачи сепарированной жидкости обратно в камеру (5) всасывания. Изобретение направлено на создание насоса, изготовление и обслуживание которого обходились бы недорого и который был бы пригоден для перекачки многофазных смесей в рамках эксплуатации отдельных источников. 13 з.п. ф-лы, 1 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 392 496 (13) C2 (51) МПК F04C 2/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (30) Конвенционный приоритет: 02.06.2005 DE 102005025816.6 (73) Патентообладатель(и): ЙОХ. ХАЙНР. БОРНЕМАНН ГМБХ (DE) (43) Дата публикации заявки: 27.06.2009 2 3 9 2 4 9 6 (45) Опубликовано: 20.06.2010 Бюл. № 17 (56) Список документов, цитированных в отчете о поиске: ЕР 0405160 А1, 02.01.1991. RU 2164312 C1, 20.03.2001. RU 2101571 C1, 10.01.1998. DE 715860 A, 08.01.1942. US 3016842 A, 16.01.1962. DE 19748385 А1, 06.05.1999. US 2381695 А, 07.08.1945. 2 3 9 2 4 9 6 R U (86) Заявка PCT: DE 2006/000940 (31.05.2006) C 2 C 2 (85) Дата перевода заявки PCT на национальную фазу: 18.12.2007 (87) Публикация PCT: WO 2006/128441 (07.12.2006) Адрес для переписки: 129090, Москва, ул.Б.Спасская, 25, ...

Patent DE3811697C2

Scroll compressor

In a scroll compressor (A) configured such that an oil is supplied to a compression chamber (14) between fixed and movable scrolls (10), (11) and to bearings (28), (29) for a crank shaft (8), an electric motor (7) and an oil reservoir 1a are placed in a discharge chamber (22), a discharge port (11c) for discharging a gas compressed in the compression chamber (14) is formed in an end plate (11a) of the movable scroll (11), and the crank shaft (8) is provided at the inside thereof with a discharge gas passage (8e) for causing the gas discharged through the discharge port (11c) of the movable scroll (11) to flow into the discharge chamber (22). The sucked gas is prevented from being heated by a heat loss of the electric motor (7) or the oil thereby increasing the performance of the compressor (A) and a rise in cost for separating the oil from the compressed gas can be prevented.

FLUID COMPRESSOR AND REFRIGERATION SYSTEM

L'invention concerne un compresseur de fluide et un système de réfrigération auquel il s'accouple. Il comporte une enveloppe hermétique 22 divisée par un bâti en une partie dans laquelle règne la pression d'aspiration et une partie dans laquelle règne la pression de refoulement. Le bâti renferme un joint annulaire d'étanchéité et un dispositif 150 sensible à la pression. Le joint annulaire d'étanchéité est rappelé par un ressort logé, avec une partie du joint, dans une gorge annulaire. Le dispositif 150 sensible à la pression comporte un premier élément exposé à la pression de refoulement et un second élément exposé à la pression d'aspiration et il actionne un piston qui, lui-même, augmente ou diminue la section d'écoulement de l'orifice de refoulement partant de la chambre 140 de régulation de pression. Domaine d'application : compresseurs à volutes, systèmes de réfrigération, etc.

Screw compressor provided with means for separating the oil from the oil-gas stream discharged by this compressor.

Le compresseur à vis (10) selon la présente invention comprend des sections d'aspiration, de rotors et de refoulement (11, 13, 15) comportant des orifices d'aspiration, de pression intermédiaire et de refoulement (56, 60, 64), respectivement, et un carter d'huile (34). La section de refoulement comprend des carters intérieur et extérieur (70, 18), espacés radialement, le carter intérieur recevant un courant d'huile-gaz en provenance de la section de rotor. Un filtre (140) est disposé de manière à entourer le carter intérieur et comprend un corps cylindrique perforé (144), une paroi d'extrémité (150) et un tampon filtrant (164) contre cette paroi. Le courant d'huile-gaz provenant de la section de rotor sort du boîtier intérieur par une ouverture qui fait partie d'un premier étage d'élimination d'huile. Le courant d'huile-gaz heurte le tampon filtrant, ceci éliminant l'huile lorsque le courant d'huile-gaz tourne de 90degré pour sortir du filtre à travers le corps perforé, ce qui élimine également l'huile. Le filtre agit comme des second et troisième étages d'élimination d'huile. The screw compressor (10) according to the present invention comprises suction, rotor and discharge sections (11, 13, 15) having suction, intermediate pressure and discharge ports (56, 60, 64). , respectively, and an oil pan (34). The discharge section includes radially spaced inner and outer casings (70, 18), the inner casing receiving an oil-gas stream from the rotor section. A filter (140) is disposed to surround the inner housing and includes a perforated cylindrical body (144), an end wall (150) and a filter pad (164) against the wall. The oil-gas stream from the rotor section exits the inner housing through an opening which forms part of a first oil removal stage. The oil-gas stream strikes the filter pad, this removing oil as the oil-gas stream rotates 90 degrees to exit the filter through the perforated body, which also ...

Patent FR2465908B1

Patent FR2309741B1

SPIRAL REFRIGERATING COMPRESSOR

Compresseur frigorifique à spirales, comprenant une enceinte étanche délimitée par une virole (2) et contenant un volume d'aspiration et un volume de compression, un moteur électrique disposé du côté de l'aspiration ayant un stator (7) et un rotor (8), solidaire d'un arbre d'entraînement (26) ou vilebrequin dont une première extrémité est immergée dans l'huile disposée dans un carter, le volume de compression contenant une volute fixe (17) équipée d'une spirale (18) engagée dans une spirale (20) d'une volute mobile (19), les deux spirales (16, 20) délimitant au moins une chambre de compression (22) de volume variable, la seconde extrémité de l'arbre d'entraînement (26) entraînant la volute mobile (19) suivant un mouvement orbital. Au moins dans la partie du stator (7) située du côté du volume de compression, le stator est entouré par un capot (6) délimitant un volume annulaire (13) avec la virole (12), des moyens (14) sont prévus pour amener au moins une partie du gaz arrivant à l'entrée de gaz ménagée dans la virole, dans une chambre (11) contenant la tête de bobine du moteur, et au moins une ouverture (33) est ménagée, du côté du moteur tourné vers le bain d'huile pour assurer le passage du gaz de l'intérieur vers le volume annulaire (13) Spiral refrigeration compressor, comprising a sealed enclosure delimited by a shell (2) and containing a suction volume and a compression volume, an electric motor arranged on the suction side having a stator (7) and a rotor (8). ), secured to a drive shaft (26) or crankshaft whose first end is immersed in the oil disposed in a housing, the compression volume containing a fixed scroll (17) equipped with a spiral (18) engaged in a spiral (20) of a movable scroll (19), the two spirals (16, 20) delimiting at least one compression chamber (22) of variable volume, the second end of the drive shaft (26) driving the mobile scroll (19) in an orbital motion. At least in the part of the ...

ROTARY COMPRESSOR OF THE LIQUID COOLED TYPE EQUIPPED WITH MEANS FOR ADJUSTING THE QUANTITY OF LIQUID AND THE VOLUME OF GAS

COMPRESSION DEVICE HAVING A SCREW COMPRESSOR OPERATING BY OIL INJECTION

Compact oil separator for rotary compressor

COMPACT OIL SEPARATOR FOR ROTARY COMPRESSOR Abstract: Separation of lubricating oil, entrained in the discharge gas produced by a rotary vane compressor, is achieved in a relatively small space by initially passing the oil-laden discharge gas through a first closed chamber, containing an oil separating element, to form a stream of gas having some of its oil removed and having a desired velocity uniformly distribed across the stream's cross section. The gas stream is then circulated within a second and larger closed chamber where the remaining oil is separated out by gravity settling and impingement on the second chamber's walls. The separated oil collects in a reservoir at the bottom of the second chamber to form an oil pool (47). The oil-free discharge gas exits through an outlet (64) in the second chamber (58). Oil is drawn off, and returned to the oil distribution system of the compressor, from a quiet portion of the oil pool which is protected from any turbulence of the gas stream by a shield (55) within the second chamber that extends into the oil pool and prevents the re-entrainment of discharge gas, as gas bubbles, into the protected quiet portion of the pool. The shield also serves to prevent the protected oil from being re-entrained into the discharge gas.

DEVICE AND METHOD FOR TREATING A FLUID BY DIPHASIC COMPRESSION AND FRACTIONATION

Screw compressor

내용 없음.

DEVICE FOR PREVENTING REVERSE ROTATION OF ROTORS ON A SCREW COMPRESSOR AT THE STOP OF THE SAME, AND COMPRESSOR.

L'INVENTION CONCERNE UN DISPOSITIF DESTINE A EMPECHER LES ROTORS A VIS DE TOURNER EN SENS INVERSE A L'INTERIEUR D'UN COMPRESSEUR A VIS. IL COMPORTE UN CORPS94 MOBILE A L'INTERIEUR DU COMPRESSEUR12 ENTRE UNE PREMIERE POSITION DANS LAQUELLE L'ECOULEMENT DU MELANGE D'HUILE ET DE GAZ COMPRIME SORTANT DE L'ORIFICE46 DE REFOULEMENT D'UNE CHAMBRE30 DE TRAVAIL EST LIBRE, ET UNE SECONDE POSITION DANS LAQUELLE CE CORPS EMPECHE LE REFLUX DU GAZ DE L'AVAL DE L'ORIFICE DE REFOULEMENT VERS L'INTERIEUR A TRAVERS LA CHAMBRE DE TRAVAIL DU COMPRESSEUR. DANS LA PREMIERE POSITION, LE CORPS FACILITE LA SEPARATION DE L'HUILE DU GAZ COMPRIME REFOULE, TANDIS QUE, DANS LA SECONDE POSITION, IL EMPECHE LES ROTORS A VIS32, 34 DE TOURNER EN SENS INVERSE A L'INTERIEUR DE LA CHAMBRE DE TRAVAIL. DOMAINE D'APPLICATION: SYSTEMES DE REFRIGERATION. THE INVENTION RELATES TO A DEVICE INTENDED TO PREVENT SCREW ROTORS FROM TURNING IN REVERSE DIRECTION WITHIN A SCREW COMPRESSOR. IT INCLUDES A MOVABLE BODY94 INSIDE THE COMPRESSOR12 BETWEEN A FIRST POSITION IN WHICH THE FLOW OF THE MIXTURE OF OIL AND COMPRESSED GAS COMING OUT OF THE DISCHARGE PORT46 OF A WORKING CHAMBER30 IS FREE, AND A SECOND POSITION IN WHICH THIS BODY PREVENTS THE BACKFLOW OF GAS FROM DOWNSTREAM FROM THE DISCHARGE PORT TO THE INTERIOR THROUGH THE WORK CHAMBER OF THE COMPRESSOR. IN THE FIRST POSITION, THE BODY FACILITATES THE SEPARATION OF THE OIL FROM THE COMPRESSED GAS BACKFLOW, WHILE, IN THE SECOND POSITION, IT PREVENTS THE SCREW ROTORS32, 34 FROM TURNING IN REVERSE DIRECTION INSIDE THE WORK CHAMBER. FIELD OF APPLICATION: REFRIGERATION SYSTEMS.

Patent FR2298711B1

Patent FR2283337B1

Patent FR2253917B1

SYSTEM AND METHOD FOR CONTROLLING VACUUM PUMP CIRCUIT.

L'invention concerne un système de gestion de fluides pour une pompe à vide. Il comporte un réservoir (18) qui fournit un lubrifiant par l'intermédiaire d'une pompe (24) à la pompe à vide (10), et un réservoir (16) de fluide contenant une réserve de liquide de refroidissement (34). Après avoir traversé et lubrifié la pompe (10), le lubrifiant se mélange au fluide de refroidissement et le mélange est emmagasiné dans le réservoir (16) pour être utilisé en tant que fluide de refroidissement de la pompe. Domaine d'application: pompes à vide pour gaz de rebut, etc. A fluid management system for a vacuum pump is disclosed. It has a reservoir (18) which supplies lubricant via a pump (24) to the vacuum pump (10), and a fluid reservoir (16) containing a reserve of coolant (34). After passing through and lubricating the pump (10), the lubricant mixes with the coolant and the mixture is stored in the reservoir (16) for use as a coolant for the pump. Area of application: vacuum pumps for waste gas, etc.

Compressor for compressing fluids such as lubricating oils

La présente invention concerne un compresseur pour comprimer du fluide incluant une huile lubrifiante, dans lequel une surface inclinée (113) est formée dans une paroi interne supérieure du logement (111). La surface inclinée (113) s'incline vers le bas, vers un joint à lèvre (160). L'huile lubrifiante fournie à l'extrémité supérieure (113a) de la surface inclinée (113) s'écoule le long de la surface inclinée (113) sans tomber vers le bas du fait de la tension de surface, et s'écoule vers l'extrémité inférieure (113b) de la surface inclinée (113) puis atteint le joint à lèvre (160). Ainsi, l'huile lubrifiante est fournie au joint à lèvre (160) de façon certaine, réduisant ainsi l'usure du joint à lèvre (160) et améliorant la durabilité du compresseur (100).

REDUCTION OF ENERGY CONSUMPTION OF A ROTARY COMPRESSOR WITH LIQUID COOLING, BY INDEPENDENT ACTION ON THE LIQUID

Patent FR2253917A1

OIL SEPARATION DEVICE FOR COMPRESSOR, IN PARTICULAR FOR REFRIGERANT COMPRESSOR

L'invention concerne plus particulièrement un compresseur qui est équipé à sa sortie d'un coagulateur traversé par le mélange de gaz et d'huile et d'où l'huile séparée tombe goutte à goutte dans la partie formant le carter du corps de compres seur. Selon l'invention, la sortie, ou chaque sortie dans le cas d'un compresseur à flux double, communique avec un espace 22 rempli d'un matériau poreux qui est traversé par le mélange de gaz et d'huile et dans la partie inférieure 31 duquel se ras semble l'huile séparée. L'espace 22 peut contenir des chicanes et le matériau poreux peut être une toile métallique ou une matière plastique mousse à cellules ouvertes. The invention relates more particularly to a compressor which is equipped at its outlet with a coagulator through which the mixture of gas and oil passes and from which the separated oil drops dropwise into the part forming the casing of the compressor body. sister. According to the invention, the outlet, or each outlet in the case of a double-flow compressor, communicates with a space 22 filled with a porous material which is crossed by the mixture of gas and oil and in the lower part 31 from which the separated oil seems to shave. Space 22 may contain baffles and the porous material may be wire mesh or open cell foam plastic.

Lubrication device for rotary compressor

Scroll compressor with oil separator

Scroll compressor

A scroll compressor includes a housing, a discharge passage, a rotary shaft, a fixed scroll, a movable scroll, an oil separator and an oil reservoir for compressing refrigerant gas containing lubricating oil. The housing has a rear housing which has a partition wall. The discharge passage is formed in the housing. The discharge passage has a discharge chamber, a discharge hole and an accommodation chamber. The discharge chamber and the accommodation chamber are communicated with each other through the discharge hole. The oil separator is provided in the accommodation chamber. The oil separator has a separation member and an oil reserved area. The oil reservoir is defined around an entire circumference of the partition wall which defines the discharge chamber therein. The oil reservoir is formed so as to communicate with the oil reserved area of the oil separator.

Scroll compressor

Gas compressor

Disclosed is a gas compressor capable of preventing deformation of a filter used for separating oil contained in a compressed gas: The gas compressor includes a suction port, a suction chamber, a gas compressing portion, a compressed gas releasing portion provided in the gas compressing portion, a discharge chamber, and a discharge port. Provided in the discharge chamber is a filter for separating oil contained in the compressed gas. The filter is configured such that the outer peripheral portion of the filter is expanded peripherally upon its deformation caused when the force (dynamic pressure) of a jet stream formed by the flow of the compressed gas released from the compressed gas releasing portion and the force (static pressure) due to a difference in pressure between front and rear sides of the filter which is generated by the flow path resistance in the filter are applied to the filter whereby the force with which the filter is held in close contact with the filter installation portion is increased. A cylindrical body may be provided in the discharge chamber so as to surround the releasing portion, and a filter is arranged at the opening of the cylindrical body.

Scroll compressor

Shaft sealing device for screw vacuum pump

Scroll type compressor

저류유실의 용적을 크게 하여 저류유실에서의 윤활유의 저류량을 증가시킬 수 있는 스크롤형 압축기를 제공하는 것. 전동 스크롤형 압축기 (10) 의 리어 하우징 (13) 내에서, 냉매가스의 토출 통로 상에는 토출실 (36) 에서 토출된 냉매 가스에 포함되는 윤활유를 분리하는 분리 파이프 (53) 와, 이 분리 파이프 (53) 로 분리된 윤활유가 저류되는 저류부 (54) 를 구비하는 오일 세퍼레이터 (52) 가 형성되어 있다. 이 오일 세퍼레이터 (52) 는 리어 하우징 (13) 내에서 토출실 (36) 과는 별실인 수용실 (50) 내에 형성되어 있다. 또, 수용실 (50) 과 토출실 (36) 은 토출 구멍 (13c) 을 통해 연통되어 있다. 토출실 (36) 은 구획벽 (13a) 에 의해 리어 하우징 (13) 의 내주측에 구획 형성되어 있다. 토출실 (36) 의 외주측 전체 둘레에는 오일 세퍼레이터 (52) 의 저류부 (54) 와 연통하는 저류유실 (38) 이 구획 형성되어 있다.

Refrigeration screw compressor having gas actuated slide valve

냉동 시스템에서 스크루 압축기 내의 슬라이드 밸브의 위치는 둘 이상의 가스 작동 유체원 중 고압의 한 위치로부터 배출된 가스 매체를 사용하여 제어된다. 바람직한 가스 작동 유체원은 압축기 작동챔버 내의 밀폐된 압축 포켓 내의 냉동가스 및 압축기 배출구의 배출통로 하류의 냉동가스이다. 다수의 상기 냉동 가스원은 개방시 슬라이드 밸브의 위치를 제어하는 피스톤 상에서 작용하기 위해 가스를 허용하는 솔레노이드 밸브에 연결된다. 첵크밸브 조립체로 인해, 고압의 가스원 중 하나는 항상 슬라이드 밸브 작동 피스톤 상에 작용한다. 냉동가스의 탈가스화 및 압축기 용적을 조정하기 위해 가스 매체보다는 유압 유체와 함께 사용되어 발생된 가스 기포 붕괴의 역효과는 슬라이드 밸브 위치의 제어에서 압축기의 과압이 이루어지면서 방지된다. In a refrigeration system the position of the slide valve in the screw compressor is controlled using a gaseous medium discharged from a high pressure one of two or more gas working fluid sources. Preferred gas working fluid sources are refrigeration gas in a sealed compression pocket in the compressor operating chamber and refrigeration gas downstream of the discharge passage of the compressor outlet. Many of these refrigeration gas sources are connected to solenoid valves that allow gas to act on a piston that controls the position of the slide valve upon opening. Due to the check valve assembly, one of the high pressure gas sources always acts on the slide valve actuating piston. The adverse effect of gas bubble collapse caused by the use of hydraulic fluid rather than gaseous medium to adjust the degasification of the refrigeration gas and the compressor volume is avoided by overpressurization of the compressor in the control of the slide valve position.

DRY TYPE VACUUM PUMP

Liquid injected compressor with temperature control of liquid

A liquid-injected compressor device for avoiding condensation of moisture in the outlet of a compressor is disclosed. The device comprises a control valve which is actuated in opposite directions by two sensors. One of the sensors senses the inlet temperature of the compressor and the other the outlet temperature. A constant temperature difference is maintained between the inlet and outlet of the compressor.

Compressor assembly having baffle

A compressor assembly having a housing with a first inlet. A compressor mechanism within the housing has a second inlet leading to a working space wherein gas is compressed. A baffle surface is extends from proximate the first inlet to proximate the second inlet and is impactable by gas entering the housing through the first inlet. The baffle surface directs gas in a flow path from the first inlet toward the second inlet and defines a baffle opening positioned between the first and second inlets. The length of the baffle opening extends substantially transverse to the flow path and is substantially greater than its width. The baffle opening diverts a portion of the gas directed along the flow path through the opening and intercepts fluid, such as lubricating oil, collected on the baffle surface whereby the fluid is separable by passage through the opening from gas entering the second inlet.

Screw compressor with in-line oil separator

Scroll compressor

내용 없음. No content.

Oil-free screw rotor machine

The invention relates to a rotary screw machine that is completely oil-free. Known rotary screw machines with cooling, sealing, lubrication of the screw rotors and oil-lubrication and oil-cooling of the bearings have been replaced with water-lubricated and water-cooled bearings.Each screw rotor (102) is mounted in a water-lubricated radial slide bearing (1) and one trunnion (31) of the rotor co-acts with a water-lubricated thrust bearing (9, 10) which acts both as an hydrodynamic and an hydrostatic bearing. The trunnion bearing housing (21) is in fluid connection with the rotor housing, both along the trunnion and via a conduit (27) from the bearing housing interior to the gas inlet (108) of the screw rotor or via a channel which is cut-off from said inlet.

Horizontal scroll compressor

A horizontal scroll-type compressor utilizes the pressure differential between the discharge pressure and the suction pressure to route lubricant from the discharge chamber to the components within the intake chamber. The compressor may utilize a lubricant separator within the discharge chamber to separate the working fluid from the lubricant prior to the working fluid exiting the compressor. The compressor may use an internal passageway that extends from the discharge chamber to a position adjacent the crankshaft to provide lubricant to the internal lubricant passage within the crankshaft.

Rotary sliding vane compressor with hydrostatic bearings

Prevention of oil backflow from a screw compressor in a refrigeration chiller

A screw compressor (12) in a refrigeration chiller (10) includes one or more baffles (68, 80) disposed in the compressor housing (24) so as to intercept and redirect oil which may flow and/or be blown, under certain operating conditions, in an upstream direction against the stream of suction gas that flows into the compressor (12) from the evaporator (18). The baffles (68, 80 ) cause oil to be retained in the compressor (12) rather than being blown back to the system evaporator (18) to ensure that sufficient oil is available to the compressor (12) under all operating conditions and eliminates the need f or structure/apparatus in the evaporator (18) dedicated to returning such oil t o the compressor (12).

Compressor system separator tank baffle and separation device for compressor system

一种分离罐，用于将已压缩气体从压缩副产物（例如在压缩过程中使用的润滑剂/冷却剂）分离，可以包括一个或多个挡板。在所述分离罐中使用的所述挡板可以包括多个通道以允许已压缩气体流通过。所述通道可以包括百叶窗，以助于引导所述流和/或有助于已压缩气体从润滑剂/冷却剂的进一步分离。所述百叶窗可以呈现在挡板的一侧，并且在一个形式中仅位于挡板的下游侧上。所述挡板可以包括泄压部，用于罐内的液体调平。可以使用任何数量的方法来制造挡板，包括切割和/或冲压。

Compressor

Compressor with water injection

Gas compressor

In a gas compressor, a cyclone block (70) is configured to include a substantially cylindrical space (75) into which a compressed coolant gas (G) is introduced to separate refrigeration oil (R) from the gas (G). A pressure bypass (76) is formed in the substantially cylindrical space (75) defined by an outer cylindrical unit (71) and an inner cylindrical unit (72) to communicate with a discharge chamber (21) having lower pressure than that of the substantially cylindrical space (75). The pressure bypass (76) includes a pressure valve to open and close the pressure bypass (76) in accordance with the internal pressure of the substantially cylindrical space (75) having the pressure bypass (76). During a high speed operation of a compressor unit (60), the coolant gas (G) including unseparated refrigeration oil (R) is discharged from the pressure bypass (76).

Gas actuated slide valve in a screw compressor

SCREW PUMP

1. Винтовой насос в однопоточном, двухвальном исполнении с двумя винтами (1, 2) и с корпусом (3) насоса, охватывающим винты (1, 2) с образованием нагнетательных камер (4), ограничиваемых его внутренней боковой поверхностью, а также с камерой всасывания (5) для всасываемой среды и с камерой (6) сжатия для приема среды, перекачиваемой винтами (1, 2), причем корпус (3) насоса установлен в камере (6) сжатия и закреплен в ней, так что камера (6) сжатия по меньшей мере частично окружает корпус (3) насоса, отличающийся тем, что оба винта (1, 2) установлены с внешней подшипниковой опорой, и в камере (6) сжатия предусмотрены сепарационные устройства для разделения перекачиваемой многофазной смеси на газовую и жидкую фазы, а между камерой (6) сжатия и камерой (5) всасывания предусмотрен короткозамкнутый трубопровод (13) для подачи сепарированной жидкости обратно в камеру (5) всасывания. ! 2. Винтовой насос по п.1, отличающийся тем, что корпус (3) насоса проходит через герметичный кожух (7). ! 3. Винтовой насос по п.1 или 2, отличающийся тем, что корпус (3) насоса закреплен на одной стороне герметичного кожуха (7), в частности привинчен к нему. ! 4. Винтовой насос по п.3, отличающийся тем, что корпус (3) насоса закреплен на герметичном кожухе (7) с помощью несущей пластины (8). ! 5. Винтовой насос по п.3, отличающийся тем, что конец (30) корпуса (3) насоса, не закрепленный в герметичном кожухе (7), располагается в его направляющей (17) с люфтом, а корпус (3) насоса загерметизирован относительно герметичного кожуха (7) с помощью уплотнения (27). ! 6. Винтовой насос по п.1, отличающийся тем, что винты (1, 2) расположены в подшипниковом узле (9), соединенном с корпусом (3) насоса. ! 7. Винтовой насос по п. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2007 147 333 (13) A (51) МПК F04C 2/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2007147333/06, 31.05.2006 (71) Заявитель(и): ЙОХ. ХАЙНР. БОРНЕМАНН ...

Gas actuated slide valve in a screw compressor

The position of a slide valve in a screw compressor in a refrigeration system is controlled using a gaseous medium sourced from the higher pressure of two or more sources of such fluid. Preferred sources are refrigerant gas in a closed compression pocket in the working chamber of the compressor and refrigerant gas in the discharge passage downstream of the compressor's discharge port. The multiple sources of such gas are connected to a solenoid valve which, when open, permits gas to act on the piston which controls the position of the slide valve. Due to a check valve arrangement, it is always the one of the sources of gas which is at higher pressure that acts on the slide valve actuating piston. The adverse affects of refrigerant gas out-gassing and gas bubble collapse associated with use of hydraulic fluid rather than a gaseous medium to modulate compressor capacity are avoided while advantageous use is made of compressor overcompression in the control of slide valve position.

IMPROVEMENTS IN REFRIGERANT ROTARY HERMETIC COMPRESSOR

Scroll-type fluid compressor units

ABSTRACT OF THE DISCLOSURE A scroll-type refrigerant compressor unit is assembled by inserting parts into a compressor housing in the predetermined order and by finally securing a front end plate onto the compressor housing by bolts, whereby the production of the compressor unit is simplified. A drive shaft is supported by a single radial bearing, and a disk rotor having a drive pin to effect the orbital motion of the orbiting scroll member is fixedly mounted on the inner end of the drive shaft and is supported on the front end plate by a thrust bearing. Thus, the drive shaft and, therefore, the compressor unit are made in a reduced length and the deflection and vibration of the drive shaft are securely prevented. A lubricating system is provided to lubricate shaft seal assembly on the drive shaft wherein the oil in the compressor housing is directed to the shaft seal cavity and returns to the interior of the compressor housing after lubricat-ing the radial and thrust bearings and other parts. A mechanism for automatically reducing the compressed fluid amount at an increased high speed operation of the compressor unit is proposed.

SPIRAL-REFRIGERANT COMPRESSOR

Closed type scroll 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。

Refrigerant compressor of the scroll type

Kältemittelverdichter vom Scroll-Typ, der folgende Merkmale aufweist: – eine hermetisch geschlossene Kapsel in der Form eines Gehäuses (2), an dessen gegenüberliegenden Enden ein Saugdruckvolumen und ein Verdichtungsdruckvolumen auf jeweils einer Seite eines Verdichterblocks (5) ausgebildet sind, wobei das Gehäuse einen Kältemittelgaseinlass (10) aufweist, und – auf der Saugdruckseite einen elektrischen Motor, der einen Stator (7) aufweist und mit dem Gehäuse (2) ein Ringvolumen bildet, und einen Rotor (8), der mit einer als Kurbelwelle ausgebildeten Antriebswelle (26) verbunden ist, deren erstes Ende eine Ölpumpe antreibt, die Öl aus einem im unteren Teil des Gehäuses angeordneten Ölsumpf einem Kanal zuführt, der im inneren Teil der Welle ausgebildet ist, – wobei das Verdichtungsdruckvolumen ein feststehendes Spiralelement (17) mit einer Spirale (18) aufweist, die in eine Spirale (20) eines beweglichen Spiralelements (19) eingreift, wobei die beiden Spiralen (18, 20) mindestens eine Verdichtungskammer (22) mit variablem Volumen umgrenzen, und – wobei... Scroll type refrigerant compressor, comprising: - A hermetically sealed capsule in the form of a housing (2), at the opposite ends of a Saugdruckvolumen and a compression pressure volume on each side of a compressor block (5) are formed, wherein the housing has a refrigerant gas inlet (10), and - On the suction pressure side of an electric motor having a stator (7) and with the housing (2) forms a ring volume, and a rotor (8) which is connected to a crankshaft designed as a drive shaft (26) whose first end a Drives oil pump that supplies oil from an arranged in the lower part of the housing sump a channel formed in the inner part of the shaft, - wherein the compression pressure volume comprises a fixed scroll member (17) with a spiral (18) which engages in a spiral (20) of a movable scroll member (19), wherein the two spirals (18, 20) at least one variable compression chamber (22) Circumscribe volume, and - in which ...

A compressor system

Compressor assembly having baffle

A compressor assembly having a housing with a first inlet. A compressor mechanism within the housing has a second inlet leading to a working space wherein gas is compressed. A baffle surface is extends from proximate the first inlet to proximate the second inlet and is impactable by gas entering the housing through the first inlet. The baffle surface directs gas in a flow path from the first inlet toward the second inlet and defines a baffle opening positioned between the first and second inlets. The length of the baffle opening extends substantially transverse to the flow path and is substantially greater than its width. The baffle opening diverts a portion of the gas directed along the flow path through the opening and intercepts fluid, such as lubricating oil, collected on the baffle surface whereby the fluid is separable by passage through the opening from gas entering the second inlet.

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。

Discharge valve device of a compressor

A compressor includes a casing, a driving part adapted to be accommodated in the casing for generating a driving force, a compression part for compressing gas with the driving force from the driving part and provided with an inlet for inhaling the gas and an outlet for discharging the compressed gas, and a valve apparatus for opening and closing the outlet. The valve apparatus has a valve body accommodation part including an inner surface of a cylindrical shape for communicating with the outlet, and connected to a gas discharging path for discharging the compressed gas discharged through the outlet; and a valve body accommodated in the valve body accommodation part and curved to close the outlet elastically and to open the outlet with the compressed gas of the compression part.

Compressor arrangement including an oil-injection-type rotary compressor having a centrifugal water separator

1457435 Separating oil and water from the gas discharge of rotary compressors HOKUETSU KOGYO CO Ltd 10 Dec 1973 [13 Jan 1973 18 April 1973] 57190/73 Heading F1N [Also in Division B2] In a compressor arrangement including an oil injection type rotary compressor 1, water particles which become mixed with the cooling and lubricating oil are automatically separated either continuously or intermittently from the oil by a centrifugal separator 14. Oil and water carried by gas compressed in the compressor 1 is collected in a combined oil separator and pressure vessel 2 having a service header 6. Gas pressure in the vessel 2 forces oil through conduit 7, a cooler 10 and a conduit 11 into the compressor 1, a temperature responsive device 8 being provided to cause some of the oil to by-pass the cooler 10 when the oil is at a low temperature. The oil separator 14 may be disposed to receive oil from the vessel 2 through a conduit 13 and deliver to the conduit 7 or vice versa, or it may both receive oil directly from and deliver oil directly to the vessel 2. A pump 16 may be disposed on the inlet or outlet side of the separator 14 to increase the pressure difference thereacross. The water separator 14 is shown in Fig. 2 and comprises a hollow body 14', 14" which supports a shaft 19 and a rotary unit 22 rotatable on bearings 26, 27 carried by the shaft 19. Oil and water mixture to be separated flows into the rotary unit 22 through passages 20, 21 in the shaft, an annular space 23, and holes 24 in the hub 22' of the unit 22. Centrifuging of the mixture in the unit 22 results in water collecting on the inside of the unit's outer wall 28, the water passing therefrom into an aperture 28" in the body part 14'. A valve 34 is opened to allow the water to escape to atmosphere from the aperture 28", the valve 34 being either manually operable on automatically operable at predetermined intervals or when a predetermined amount of water has collected in the ...

screw compressors

Compressor units

FLUID COMPRESSOR AND REFRIGERATION SYSTEM

COMPRESSION DEVICE HAVING A SCREW COMPRESSOR OPERATING BY OIL INJECTION

UN DISPOSITIF DE COMPRESSION EQUIPE D'UN COMPRESSEUR A VIS PRESENTE UN CARTER DISCOIDAL1 DONT LA LONGUEUR CORRESPOND SENSIBLEMENT A CELLE DES ROTORS4, 5 ET DANS LEQUEL L'AIR COMPRIME IMPREGNE D'HUILE ET SORTANT DU COMPRESSEUR EST DEVIE RADIALEMENT ET PERIPHERIQUEMENT POUR SEPARER L'HUILE. LE SEPARATEUR D'HUILE39, LE FILTRE A HUILE49 ET LE FILTRE A AIR16 FORMENT DES BLOCS INDIVIDUELS MONTES A LA FACE FRONTALE DE CE CARTER. LE FLASQUE18 DU MOTEUR D'ENTRAINEMENT9 DELIMITE UNE CHAMBRE DE TRANSMISSION. A COMPRESSION DEVICE EQUIPPED WITH A SCREW COMPRESSOR HAS A DISCOIDAL1 CRANKCASE THE LENGTH OF WHICH SENSITIVELY CORRESPONDS TO THAT OF THE ROTORS4, 5 AND IN WHICH THE COMPRESSED AIR IMPREGNATED WITH OIL AND EXHAUSTING THE COMPRESSOR IS DEVIED RADIALLY AND PERIPHERALLY ' OIL. THE OIL SEPARATOR39, THE OIL FILTER49 AND THE AIR FILTER16 FORM INDIVIDUAL BLOCKS MOUNTED ON THE FRONT FACE OF THIS CRANKCASE. THE FLANGE18 OF THE DRIVE MOTOR9 DELIMITS A TRANSMISSION CHAMBER.

SPIRAL REFRIGERATING COMPRESSOR

Water injected screw compressor.

De uitvinding heeft betrekking op een watergeïnjecteerde schroefcompressor die een compressorelement (1) bevat met een binnenruimte (3), een aanzuigleiding (7) die op een bovenaan gelegen inlaatgedeelte (6) van deze binnenruimte (3) aansluit, een persleiding (9) waarin een ketel (10) opgesteld is, en een injectieleiding (22) tussen de ketel (10) en de binnenruimte (3) die een gedeelte (31) bezit dat hoger gelegen is dan de bovenkant van het inlaatgedeelte (6). Een verbindingsleiding (36) is aangebracht tussen het inlaatgedeelte (6), enerzijds, en een boven het maximum waterniveau (35) van de ketel (10) gelegen aansluitpunt op het zich neerwaarts naar haar uitmonding uitstrekkend gedeelte (32) van deze injectieleiding (22), anderzijds. The invention relates to a water-injected screw compressor comprising a compressor element (1) with an inner space (3), a suction line (7) which connects to an upper inlet section (6) of this inner space (3), a pressure line (9) in which a boiler (10) is arranged, and an injection line (22) between the boiler (10) and the inner space (3) which has a portion (31) that is higher than the top of the inlet portion (6). A connecting line (36) is arranged between the inlet portion (6) on the one hand, and a connection point located above the maximum water level (35) of the boiler (10) to the downwardly extending portion (32) of this injection line (22) ), on the other hand.

Spiral compressor with oil separator

Screw compressor

Scroll compressor with oil separator

Scroll compressors

An air compressor system and an air/oil cast separator

An air compressor system having a cast separator tank for use with an oil-flooded air compressor. The cast separator tank including an integrally cast airend inlet opening which is mountable in face-to-face engagement with an airend discharge opening of the compressor; an integrally cast first channel which extends between the airend inlet opening and a separation chamber; an integrally cast second channel which communicates with a lower portion of the separation chamber and which extends along an outer portion of the cast separator tank; and an integrally cast lip which extends around an inner wall of the separation chamber. The compressor system further having a motor, such that the compressor, the motor and the cast separator tank are attached to form a single unit for ease of handling. The compressor system also has a plurality of mounting feet for attachment to an appropriate subbase.

Scroll type compressor with lubricating system

A lubricating system for a scroll type compressor is described. The compressor unit includes a housing having a front end plate and a cup shaped casing. A rotation preventing mechanism for an orbiting scroll is disposed between the inner end surface of the front end plate and a circular end plate of the orbiting scroll. A fluid inlet port is formed on the cup shaped casing and placed for opposing the rotation preventing mechanism. The part of fixed ring of rotation preventing mechanism which is opposited to the fluid inlet port has a cut portion. An oil passageway is formed through the front end plate with one end opening at the cut portion of fixed ring. The other end of oil passage way opens to a shaft seal cavity formed on the front end plate. Therefore, a shaft seal assembly within the shaft seal cavity is lubricated and cooled by lubricating oil and suction gas flowing through the oil passageway. Further passageways convey lubricant from the shaft seal cavity to the bearing elements of the compressor and finally to the suction chamber of the compressor.

Centrifugal separator for the lubricating oil of a rotary piston compressor

Vane compressor with reticulate or porous separator element and fluid guide means therein

An improved vane compressor including a novel lubricating oil separator means disposed within a discharge pressure chamber formed between the casing and the pump housing. The oil separator means comprises an element having a reticulate or spongy structure having pores communicating with each other and a shape substantially similar to that of the discharge pressure chamber, and baffle board guide means arranged for guiding fluid travelling in said element toward the outlet of the compressor. The oil separator element has a channel continuously formed in peripheral surfaces and an end surface thereof and adapted to cooperate with an associated inner surface of the discharge pressure chamber to form an oil passage for facilitating charge and discharge of oil through the oil charge and discharge port of the compressor.

Pump oiling means

Suction duct and scroll compressor incorporating same

Patent DE3923304C2

Rotary compressor

Vacuum pump apparatus and shaft sealing device therefor

A vacuum pump apparatus comprises a male and female screw rotors meshing with each other, a casing for accommodating the male and female screw rotors and having a working space, a suction port and a discharge port both communicating with the working space, bearing portions for supporting shafts of the male and female screw rotors on the suction and discharge sides thereof. Shaft seal portions which are respectively disposed between the working space and each of the bearing portions and are adapted to seal the shafts of the male and female screw rotors on the suction and discharge sides thereof. Seal gas introducing device introduces seal gas into the shaft seal portions, and a controller controls the pressure of the seal gas introduced into the shaft seal portions.

Scroll machine

Oil recovery member, and motor mechanism and compressor using the same

The present invention relates to an oil recovery member, and a motor mechanism and a compressor using the same. The oil recovery member is provided to prevent oil rising along a rotation shaft from being discharged with refrigerant, and relative sizes such as installation positions between the oil recovery member and components adjacent thereto are restricted. Therefore, since the oil flow is guided through a passage defined between the oil recovery member and the adjacent components, the oil can be efficiently recovered, so that an oil circulation rate of a freezing cycle can be reduced and compression efficiency can be improved.

Hermetic compressor and refrigeration cycle device having the same

A hermetic compressor and a refrigeration cycle device having the same are provided. An oil separator is installed either outside or inside of a casing to separate oil from a discharged refrigerant and an oil pump driven by a driving force of a motor is used to recollect the oil separated in the oil separator, whereby the separation between oil and refrigerant can effectively be performed and also a fabricating cost can be reduced. Also, an introduction of the separated refrigerant back into the compressor can be prevented so as to improve a cooling capability of the refrigeration cycle device. In addition, the oil pump is driven by the driving force of the motor, resulting in a simple configuration of the compressor and a reduction of a fabricating cost of the compressor.

Hermetic scroll type compressor

This invention discloses a lubricating mechanism of a hermetically sealed scroll type compressor in which an inner chamber of a housing is kept at suction pressure. The compressor includes a drive shaft (13) supported by bearings (14, 15, 18) in inner blocks (110, 120). The drive shaft (13) is operatively linked to an orbiting scroll (30) which orbits within a stationary scroll (20). A rotation prevention device (34) prevents rotation of the orbiting scroll (30).The suction chamber is divided into two sections (63, 64) by a partition wall (110). The sections (63, 64) are linked by an inclined passage (111), formed in the lower part of the partition wall (110) to allow the lubricating oil to flow.

LUBRICATION SYSTEM FOR SCREW COMPRESSOR AND COMPRESSOR

L'invention concerne un système de lubrification pour compresseur à vis. L'ensemble compresseur à vis 10 comprend une partie 16 formant boîtier d'un moteur 18, une partie compresseur 14 et un séparateur d'huile 30 disposé en aval de l'orifice 28 de refoulement du compreseur. La partie formant boîtier est traversée par le gaz d'aspiration se dirigeant vers la chambre de travail 22 de façon que ce gaz refroidisse le moteur 18. La partie 16 forme également un échangeur de chaleur 50 parcouru intérieurement par l'huile revenant du carter 34 disposé au-dessous du séparateur 30. La pression de refoulement régnant dans le séparateur 30 renvoie l'huile dans l'échangeur de chaleur avant que cette huile atteigne les surfaces de paliers 72 à lubrifier du compresseur. Domaine d'application : Compresseurs à vis.

Compressor

scroll compressor

Rotor anti-reverse rotation arrangement in a screw compressor

Title ROTOR ANTI-REVERSE ROTATION ARRANGEMENT IN A SCREW COMPRESSOR Inventor James C. Tischer Abstract A body located downstream of the compressor discharge port in an oil-injected screw compressor assembly includes a contoured surface for directing the flow of the gas-oil mixture discharged from the com-pressor. The body is movable in the compressor assembly between a first position in which the flow of the mixture out of the discharge port is unimpeded and a second position in which the backflow of gas from downstream of the discharge port back into and through the working chamber of the compressor is prevented. In the first position the body facilitates the separation of oil from the discharged compressed gas while in the second position the reverse direction rotation of the screw rotors in the compressor working chamber is prevented. The body is positionable to the first position under the impetus of the mixture discharged from the compressor and is positionable to the second posi-tion under the impetus of the initial backflow of gas from downstream of the compressor, back to the compressor, which occurs upon compressor shutdown.

Scroll compressors