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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1629. Отображено 100.
15-11-2012 дата публикации

Scroll compressor

Номер: US20120288394A1
Автор: Kouji Kojima, Masahiro Yamada, Yasuhiro Murakami
Принадлежит: Daikin Industries Ltd

A scroll compressor includes fixed and movable scrolls, each scroll having a spiral lap placed on one surface of a plate. The lap of the fixed scroll and the lap of the movable scroll are interlocked to form a compression chamber between the laps of the scrolls which are adjacent to each other. At least one of the laps has a spiral shape in which a base radius of an involute decreases as a winding angle increases in a region extending from a winding start part to a winding middle part, and the base radius of the involute in a region extending from the winding middle part to a winding end part is larger than the smallest value of the base radius of the involute in the region extending from the winding start part to the winding middle part.

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Номер записи: 1
28-03-2013 дата публикации

Scroll compressor

Номер: US20130078129A1
Автор: Byeongchul Lee, Cheolhwan Kim, Hakyoung Kim, Jaesang LEE, Kangwook Lee
Принадлежит: LG ELECTRONICS INC

The present disclosure relates to a scroll compressor. According to the present disclosure, in a shaft penetration scroll compressor in which an eccentric portion of the rotation shaft is overlapped with a orbiting wrap of the orbiting scroll in a radial direction, a back pressure chamber formed at a rear surface of the orbiting scroll may be eccentrically formed from the circular center around a discharge port to correspond to the eccentric discharge port, thereby effectively preventing tilting of the orbiting scroll due to the eccentricity of a gas force generated while the discharge port is eccentrically formed.

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Номер записи: 2
28-03-2013 дата публикации

Scroll compressor

Номер: US20130078130A1
Автор: Byeongchul Lee, Chuljig Bae, Hakyoung Kim, Jinsung Park
Принадлежит: LG ELECTRONICS INC

The present disclosure relates to a scroll compressor. According to the present disclosure, an oldham ring for preventing the rotation movement of a orbiting scroll may be fabricated by sintering metal powder to have a yield stress above 300 MPa, and thus even when a gas force is eccentrically generated it may be possible to prevent the oldham ring supporting the circular movement of the orbiting scroll from being damaged due to this, thereby enhancing the compressor performance.

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Номер записи: 3
09-05-2013 дата публикации

Scroll compressor

Номер: US20130115123A1
Автор: Byeongchul Lee, Hakyoung Kim, Jaesung Lee, Sanghun Seong
Принадлежит: LG ELECTRONICS INC

A scroll compressor may include a blocking portion provided in a fixed component thereof, and positioned adjacent to a discharge hole formed in an orbiting scroll of the compressor. The blocking portion may temporarily obscure the discharge hole upon initiation of a discharging operation, thereby preventing refrigerant discharged into a discharging space from flowing back into a compression chamber, without the use of a separate check valve. Such a blocking portion may prevent an increase in overall compressor noise due to noise typically generated by a check valve. Such a blocking portion may also prevent degradation in compressor reliability levels due to valve damage and increases in fabricating costs due to the addition of the valve.

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Номер записи: 4
16-05-2013 дата публикации

Scroll compressor

Номер: US20130121865A1
Автор: Byeongchul Lee, Inho Won, Junchul Oh, Kitae JANG, Yanghee CHO
Принадлежит: LG ELECTRONICS INC

A scroll compressor is provided. The scroll compressor may include a communication hole formed in a fixed scroll for communicating a discharge space and a thrust bearing surface with each other. This may reduce frictional loss between the fixed scroll and an orbiting scroll. Further, if a high vacuum state is about to occur during operation of the compressor, refrigerant in the discharge space may be introduced into the compression chambers through the communication hole. This may prevent the occurrence of a high vacuum state to thereby prevent damage to the compressor. Additionally, when the compressor is stopped, a pressure equilibrium operation may be performed through the communication hole.

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Номер записи: 5
21-11-2013 дата публикации

Scroll refrigeration compressor

Номер: US20130309118A1
Автор: Dominique Gross, Jean-Francois LE COAT, Patrick Jallat, Pierre Ginies, Stephane Watts
Принадлежит: Danfoss Commercial Compressors SA

The scroll compressor includes stationary and moving scrolls each including a scroll plate provided with a spiral wrap, the spiral wraps defining the variable-volume compression chambers, a separating plate mounted on the scroll plate of the stationary scroll and defining with the latter a first intermediate volume, and a delivery chamber defined by the separating plate and the sealed casing. The compressor includes a bypass passage arranged to communicate the first intermediate volume with an intermediate compression chamber, a flow passage arranged to communicate the first intermediate volume with the delivery chamber, and a bypass valve associated with the flow passage, each bypass valve associated with a flow passage mounted on the surface of the separating plate turned toward the delivery chamber and movable between closing and opening positions for closing and opening the flow passage.

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Номер записи: 6
26-12-2013 дата публикации

Scroll compressor

Номер: US20130343941A1
Автор: Byeongchul Lee, Byoungchan KIM, Cheolhwan Kim, Seheon Choi
Принадлежит: LG ELECTRONICS INC

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.

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Номер записи: 7
05-01-2017 дата публикации

TWO-PIECE SUCTION FITTING

Номер: US20170002812A1
Автор: Duppert Ronald J.
Принадлежит: Bitzer Kuehlmaschinenbau GmbH

A suction fitting coupled to a scroll compressor that has an outer housing with an inside diameter and a suction port defined in a wall of the outer housing. A suction duct is disposed inside the outer housing at a spaced distance from the wall of the outer housing. The suction duct defines an entrance port aligned with the suction port. The suction fitting includes a first member being generally cylindrical, and a second member being generally cylindrical. The second member is disposed inside the first member with a portion of the second member extending into the outer housing through the suction port, spanning the spaced distance to the suction duct, and coupling with the entrance port of the suction duct. Neither the first member nor the second member includes a suction screen for filtering out solid contaminants in a flow of refrigerant. 1. A suction fitting coupled to a scroll compressor , the scroll compressor including an outer housing having an inside diameter and a suction port defined in a wall of the outer housing , and a suction duct disposed inside the outer housing a spaced distance from the wall of the outer housing , with the suction duct defining an entrance port aligned with the suction port , the suction fitting comprising:a first member being generally cylindrical anda second member being generally cylindrical, with the second member disposed inside the first member with a portion of the second member extending into the outer housing through the suction port and spanning the spaced distance to the suction duct and coupling with the entrance port of the suction duct;wherein neither the first member nor the second member includes a suction screen for filtering out solid contaminants in a flow of refrigerant.2. The suction fitting coupled to a scroll compressor of claim 1 , wherein the first member has a body portion with a second inside diameter and a nose portion with a first inside diameter claim 1 , with the second inside diameter larger than ...

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Номер записи: 8
07-01-2016 дата публикации

AIR COMPRESSION DEVICE

Номер: US20160003246A1
Автор: KUROMITSU Masaru, MIYAUCHI Tatsuo, MIZUFUNE Toru
Принадлежит:

An air compression device is provided with a rotary compressor, a discharge flow channel connected to a discharge portion of the compressor, a release flow channel disposed to be connectable to the discharge flow channel, and an operation control unit configured to perform a release operation of releasing a part or all of compressed air remaining in the discharge flow channel through the release flow channel when the operation control unit controls to stop the compressor. 1. An air compression device , comprising:a rotary compressor;a discharge flow channel connected to a discharge portion of the compressor;a release flow channel disposed to be connectable to the discharge flow channel; andan operation control unit configured to perform a release operation of releasing a part or all of compressed air remaining in the discharge flow channel through the release flow channel when the operation control unit controls to stop the compressor.2. The air compression device according to claim 1 , whereinwhen the release operation is performed, the operation control unit controls to start releasing the compressed air while driving the compressor, and controls to stop the compressor after a predetermined time elapses.3. The air compression device according to claim 1 , whereinwhen the release operation is performed, the operation control unit controls to start releasing the compressed air while driving the compressor, and controls to stop the compressor when a condition for finishing the release operation is satisfied.4. The air compression device according to claim 1 , further comprising:an opening/closing mechanism which connects or disconnects the discharge flow channel to or from the release flow channel, whereinthe operation control unit is configured to bring the opening/closing mechanism to a disconnected state when an ordinary operation of generating compressed air is performed, and to bring the opening/closing mechanism to a connected state before the compressor is ...

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Номер записи: 9
07-01-2016 дата публикации

Scroll Compressor

Номер: US20160003247A1
Автор: MATSUMURA Shoji, OHTAHARA Masaru, Takeda Hiromu
Принадлежит:

The purpose of the present invention is to suppress the contact between the wrap tooth tip and the tooth bottom by enlarging the tooth bottom step, and to reduce the loss owing to the gap as a result of enlarging the tooth bottom step. The fixed scroll includes a fixed scroll-side flat plate and a fixed-side wrap standing on one surface of the fixed-side plate while retaining the spiral shape. The orbiting scroll includes an orbiting-side plate and an orbiting-side wrap standing on one surface of the orbiting-side plate while retaining the spiral shape. The orbiting-side wrap orbits with respect to the fixed scroll while being in mesh with the fixed side wrap to form a compression chamber. Each of the fixed-side plate and the orbiting-side plate has the step on the tooth bottom at the inner periphery deeper than the step on the tooth bottom at the outer periphery. The step at the outer or the inner periphery, which is formed on the tooth bottom of the orbiting-side plate, has the depth smaller than the one on the tooth bottom of the fixed-side plate. 1. A scroll compressor comprising:a fixed scroll including a fixed-side plate and a fixed-side wrap standing on one surface of the fixed-side plate while retaining a spiral shape;an orbiting scroll including an orbiting-side plate, and an orbiting-side wrap standing on one surface of the orbiting-side plate while retaining a spiral shape, which allows the orbiting-side wrap to be in mesh with the fixed-side wrap for orbiting with respect to the fixed scroll to form a compression chamber; andan electric motor for driving the orbiting scroll via a crankshaft,wherein each tooth bottom of the fixed-side wrap and the orbiting-side wrap has a step formed to become deeper from an outer periphery to an inner periphery; andthe step is formed on the tooth bottom of the fixed-side wrap at the inner periphery so as to be deeper than the step formed on the tooth bottom of the orbiting-side wrap at the inner periphery.2. The scroll ...

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Номер записи: 10
27-01-2022 дата публикации

Scroll compressor

Номер: US20220025885A1
Автор: Jeong Ki Seo, Kyung Jae Lee
Принадлежит: Hanon Systems Corp

A scroll compressor includes a casing; an orbiting scroll; a fixed scroll; and a main frame which supports the orbiting scroll. The fixed scroll may include a fixed scroll end plate and a fixed scroll wrap which protrudes from the fixed scroll end plate. The main frame may include a main frame end plate which is provided on the opposite side of the fixed scroll end plate on the basis of the orbiting scroll, and a main frame side plate which protrudes from an outer circumferential portion of the main frame end plate toward the fixed scroll. The fixed scroll end plate, the main frame end plate, and the main frame side plate may form an orbiting space of the orbiting scroll.

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Номер записи: 11
21-01-2021 дата публикации

Scroll compressor

Номер: US20210017985A1
Автор: Changeol JO, Donghyun Sohn, Suchul Kim
Принадлежит: LG ELECTRONICS INC

A scroll compressor is provided in which a center of a back pressure chamber is eccentrically disposed relative to a center of a fixed scroll. For example, the center of the back pressure chamber may be moved towards a center of an orbiting scroll at a time of discharge, thereby preventing displacement of the fixed scroll and ensuring stability in orbital movement of the orbiting scroll.

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Номер записи: 12
25-01-2018 дата публикации

NATURAL GAS FUELED VEHICLE

Номер: US20180023516A1
Автор: Cai Mei, DAILLY Anne M., ZHANG Cunman, Zhou Wei
Принадлежит:

A natural gas fueled vehicle, includes a natural gas fueled Internal Combustion Engine (ICE) to provide motive power to the vehicle. A pressurizable tank is disposed on the vehicle to contain a natural gas. A natural gas adsorbent is disposed in the tank. A fuel supply tube is to convey the natural gas to the ICE. A scroll compressor is on the vehicle to receive the natural gas from the tank and to deliver a first mixture of compressed natural gas and an oil to a gas and oil separator. The gas and oil separator is to receive the first mixture of the compressed natural gas and the oil from the scroll compressor and to separate the oil from the compressed natural gas and to deliver the compressed natural gas to the fuel supply tube substantially free from the oil. 1. A natural gas fueled vehicle , comprising:a natural gas fueled Internal Combustion Engine (ICE) to provide motive power to the vehicle;a pressurizable tank disposed on the vehicle to contain a natural gas;a natural gas adsorbent disposed in the tank;a fuel supply tube to convey the natural gas to the ICE;a scroll compressor on the vehicle to receive the natural gas from the tank and to deliver a first mixture of a compressed natural gas and an oil to a gas and oil separator; andthe gas and oil separator to receive the first mixture of the compressed natural gas and the oil from the scroll compressor and to separate the oil from the compressed natural gas and to deliver the compressed natural gas to the fuel supply tube substantially free from the oil.2. The natural gas fueled vehicle as defined in wherein the gas and oil separator is a two-stage gas and oil separator having a first stage gas and oil separator in fluid communication with an output of the scroll compressor to separate a first portion of the oil from the first mixture of the compressed natural gas and the oil and discharge a second mixture of the compressed natural gas and the oil to be received by a second stage gas and oil separator to ...

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Номер записи: 13
25-01-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180023570A1
Автор: HUANG Youling, YANG CHUN, ZENG Dang
Принадлежит: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.

A scroll compressor is provided, comprising: a compression mechanism comprising a non-orbiting scroll member and an orbiting scroll member, wherein the orbiting scroll member is axially displaceable between an engagement position and a disengagement position; a main bearing housing adapted to support the compression mechanism; a back pressure chamber formed between the orbiting scroll member and the main bearing housing, wherein the back pressure chamber is in communication with at least one of the compression chambers via a communication passage provided in the orbiting scroll member or the non-orbiting scroll member and is adapted to apply a back pressure to the orbiting scroll member to bias the orbiting scroll member toward the engagement position; and a first sealing means provided between the back pressure chamber and a suction zone of the compression mechanism and capable of maintaining sealing when the orbiting scroll member is axially displaced. 1. A scroll compressor , comprising:a compression mechanism comprising a non-orbiting scroll member and an orbiting scroll member, wherein the orbiting scroll member is axially displaceable between an engagement position, in which the orbiting scroll member and the non-orbiting scroll member are axially engaged with each other to form a series of compression chambers for compressing fluid, and a disengagement position, in which the orbiting scroll member is axially separated from the non-orbiting scroll member;a main bearing housing adapted to support the compression mechanism;a back pressure chamber formed between the orbiting scroll member and the main bearing housing, wherein the back pressure chamber is in communication with at least one of the compression chambers via a communication passage provided in the orbiting scroll member or the non-orbiting scroll member and is adapted to apply a back pressure to the orbiting scroll member to bias the orbiting scroll member toward the engagement position; anda first ...

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Номер записи: 14
23-01-2020 дата публикации

SCROLL COMPRESSOR, REFRIGERATION CYCLE APPARATUS, AND SHELL

Номер: US20200025200A1
Автор: ISHIZONO Fumihiko, Koyama Shuhei, MATSUI Tomokazu, TAKAI Akihito
Принадлежит:

A scroll compressor includes a frame holding an orbiting scroll configured to slide, a fixed scroll configured to form a compression chamber together with the orbiting scroll, and a shell accommodating the frame and the fixed scroll. The shell includes a first inner wall surface and a first protrusion protruding from the first inner wall surface to position the fixed scroll, and the fixed scroll is fixed to the first inner wall surface. 1. A scroll compressor , comprising:a frame holding an orbiting scroll configured to slide;a fixed scroll configured to form a compression chamber together with the orbiting scroll; anda shell accommodating the frame and the fixed scroll,the shell including a first inner wall surface, a first protrusion protruding from the first inner wall surface to position the fixed scroll, a second inner wall surface, and a second protrusion protruding from the second inner wall surface to position the frame,the fixed scroll being fixed to the first inner wall surface,the frame being fixed to the second inner wall surface.2. The scroll compressor of claim 1 , whereinthe orbiting scroll has a side surface located in a radially outermost portion of the orbiting scroll, andthe side surface of the orbiting scroll and an inner wall surface of the shell face each other.3. (canceled)4. The scroll compressor of claim 1 , wherein the second inner wall surface is formed on an inner wall surface of the first protrusion.5. The scroll compressor of claim 1 , wherein the first inner wall surface is formed to have an inner diameter that is larger than an inner diameter of the second inner wall surface.6. The scroll compressor of claim 1 , whereinthe shell includesa main shell with both ends opened,a first shell covering an opening port on one end side of the main shell, anda second shell covering an opening port on an other end side of the main shell,a first positioning surface for positioning the fixed scroll is formed at a part of the first protrusion that is ...

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Номер записи: 15
04-02-2016 дата публикации

CAPACITY MODULATED SCROLL COMPRESSOR

Номер: US20160032924A1
Автор: Stover Robert C.
Принадлежит:

A compressor may include a first scroll member having a first spiral wrap, a first chamber, and a first aperture. A second scroll member may include a second spiral wrap engaged with the first spiral wrap to form a series of compression pockets and a second aperture. The first aperture may be in communication with a first of the compression pockets to provide communication between the first compression pocket and the first chamber. The second aperture may be in communication with a second of the compression pockets. A capacity modulation assembly may include a first piston preventing communication between the first aperture and a first passage when in a first position and providing communication when in a second position. A second piston may prevent communication between the second aperture and a third passage when in the first position, and provide communication when in a second position. 1. A compressor comprising:a housing including a discharge pressure region and a suction pressure region;a first scroll member supported within said housing and having a first end plate, a first spiral wrap extending from a first side of said first end plate, a first chamber located on a second side of said first end plate having first and second passages in communication therewith, and a first aperture extending through said first end plate and in communication with said first chamber,a second scroll member supported within said housing and including a second end plate having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a series of compression pockets and a second aperture extending therethrough, said first aperture being in communication with a first of said compression pockets to provide communication between said first compression pocket and said first chamber and said second aperture being in communication with a second of said compression pockets; and a first piston located within said first chamber and displaceable ...

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Номер записи: 16
31-01-2019 дата публикации

SCROLL COMPRESSOR AND AIR CONDITIONING APPARATUS INCLUDING THE SAME

Номер: US20190032659A1
Автор: MIZUSHIMA Yasuo, MURAKAMI Yasuhiro, NAKAI Ryouta, NORO Masahiro
Принадлежит: DAIKIN INDUSTRIES, LTD.

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. ...

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Номер записи: 17
30-01-2020 дата публикации

FLUID COMPRESSOR

Номер: US20200032797A1
Автор: AHN Sungyong, CHOI Yoonsung, Kim Jinho, LEE Jaeha
Принадлежит:

A fluid compressor is provided. The fluid compressor includes a case including an inlet configured to introduce fluid to be compressed, a compression unit including a compression chamber configured to compress the fluid introduced into the case, and a discharge port configured to discharge the compressed fluid to the outside of the compression chamber, a motor configured to drive the compression unit, and a valve configured to open and close the discharge port. The valve includes a fastening portion coupled to the compression unit to be spaced a first distance from the discharge port. 1. A fluid compressor comprising:a case comprising an inlet configured to receive and direct fluid to an inside of the case;a compression unit that defines a compression chamber configured to compress the fluid in the case and a discharge port configured to discharge compressed fluid to an outside of the compression chamber;a motor disposed inside the case and configured to drive the compression unit; anda valve coupled to the compression unit and configured to open and close at least a portion of the discharge port,wherein the valve comprises a fastening portion coupled to the compression unit and spaced apart from the discharge port by a first distance.2. The fluid compressor according to claim 1 , wherein the fastening portion comprises a coupling portion coupled to a surface of the compression unit claim 1 , andwherein the fluid compressor further comprises a first spacing member disposed between the coupling portion and the surface of the compression unit and configured to maintain the first distance between the valve and the compression unit.3. The fluid compressor according to claim 2 , wherein the valve has a free end that extends from the coupling portion toward the discharge port to thereby overlap with the discharge port.4. The fluid compressor according to claim 1 , further comprising a retainer configured to limit a displacement of the valve based on the valve opening the ...

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Номер записи: 18
30-01-2020 дата публикации

MOTOR-OPERATED COMPRESSOR

Номер: US20200032798A1
Автор: CHOI Soonyong, HER Jongtae, JANG Kitae, KIM Jehoon
Принадлежит: LG ELECTRONICS INC.

A motor-operated compressor includes: a fixed scroll; an orbiting scroll engaged with the fixed scroll to perform an orbiting motion and forming a pair of compression chambers together with the fixed scroll during the orbiting motion; a frame provided opposite to the fixed scroll with the orbiting scroll interposed therebetween, and forming a back pressure chamber so as to axially support the orbiting scroll; and a rotation shaft coupled to the frame and the orbiting scroll in a penetrating manner. The rotation shaft is supported by the frame in a first axial direction and rotatably coupled to the fixed scroll, and an elastic member is disposed between the fixed scroll and the rotation shaft to support the rotation shaft in a second axial direction opposite to the first axial direction with respect to the first scroll. 1. A motor-operated compressor , comprising:a fixed scroll;an orbiting scroll engaged with the fixed scroll and configured to perform an orbiting motion relative to the fixed scroll, and the orbiting scroll and the fixed scroll forming a pair of compression chambers therebetween during the orbiting motion;a frame disposed opposite to the fixed scroll with the orbiting scroll interposed between the frame and the fixed scroll, a back pressure chamber being formed between the frame and the orbiting scroll, and the back pressure chamber being configured to axially support the orbiting scroll;a rotation shaft coupled to the frame and the orbiting scroll and penetrating through the frame and the orbiting scroll, and the rotation shaft being supported on the frame in a first axial direction and rotatably coupled to the fixed scroll; andan elastic member disposed between the fixed scroll and the rotation shaft, the elastic member being configured to support the rotation shaft in a second axial direction opposite to the first axial direction with respect to the fixed scroll.2. The motor-operated compressor of claim 1 , wherein:the fixed scroll includes a ...

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Номер записи: 19
30-01-2020 дата публикации

COMPRESSOR

Номер: US20200032803A1
Автор: KIM Cheolhwan, KIM Taekyoung, Lee Howon
Принадлежит:

Disclosed herein is a scroll compressor in which the discharge hole is formed to have an axial length less than an axial length of the fixed shaft accommodation portion, thereby increasing efficiency. 1. A compressor comprising:a case comprising a discharge portion disposed at one side of the case, the discharge portion being configured to discharge refrigerant from the case;a drive unit coupled to an inner circumferential surface of the case;a rotary shaft that extends from the drive unit in a direction away from the discharge portion and that is configured to rotate about an axis;an orbiting scroll coupled to the rotary shaft and configured to rotate based on a rotation of the rotary shaft;a fixed scroll engaged with the orbiting scroll, the fixed scroll defining a compression space configured to receive, compress, and discharge refrigerant; anda muffler that is coupled to the fixed scroll, and that defines a receiving space configured to guide refrigerant toward the discharge portion, a fixed head plate that is coupled to the inner circumferential surface of the case and that defines the compression space, and', 'a fixed shaft accommodation portion that is configured to accommodate the rotary shaft, and, 'wherein the fixed scroll comprises a discharge hole that extends through the fixed head plate and that is configured to discharge compressed refrigerant toward the receiving space of the muffler, and', 'a bypass hole that extends through the fixed head plate and that is configured to guide refrigerant in the receiving space of the muffler toward the discharge portion,', 'wherein the fixed shaft accommodation portion is provided to protrude from the fixed head plate toward the muffler, and', 'wherein the discharge hole is provided to be spaced apart from the fixed shaft accommodation portion and is provided to extend through the fixed head plate in an axial direction., 'wherein the fixed head plates defines2. The compressor of claim 1 , wherein the orbiting ...

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Номер записи: 20
01-05-2014 дата публикации

Sealed Scroll Compressor for Helium

Номер: US20140119971A1
Автор: Masao Shiibayashi, Takamasa Adachi, Yasushi Izunaga
Принадлежит: Hitachi Appliances Inc

A suction chamber and the oil injection port are linked, under a certain range of revolution angle, via a suction working chamber formed in the radially outer side by a orbiting scroll outer curve and a fixed scroll inner curve under a certain range of revolution angle. An opening of the oil injection port is provided on a bottom surface between teeth of the fixed scroll so that the suction working chamber formed, in a radially inner side, by a orbiting scroll inner curve and a fixed scroll outer curve and the suction chamber are positioned not to be linked with the oil injection port.

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Номер записи: 21
04-02-2021 дата публикации

SCROLL COMPRESSOR

Номер: US20210033092A1
Автор: Bae Mooseong, CHO Sungchan, CHO Yanghee, Noh Jongsoo, Oh Sungkwang, PARK Sunghyuk
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

Provided is a scroll compressor capable of expanding a compression space and accordingly increasing a design volume ratio. The scroll compressor includes: a main body; a fixed scroll fixed inside the main body; an orbiting scroll orbiting the fixed scroll; and a plurality of compressing portions respectively provided in the fixed scroll and the orbiting scroll, wherein each compressing portion includes a circular arc portion of which a curvature is constant, a curved portion positioned in an inside of the circular arc portion and spaced a preset distance from the circular arc portion, and a connection portion connecting the circular arc portion to the curved portion, wherein a curvature of the connection portion changes from the first circular arc portion to the second circular arc portion. 1. A scroll compressor comprising:a main body;a fixed scroll fixed inside the main body;an orbiting scroll orbiting the fixed scroll; anda plurality of compressing portions respectively provided in the fixed scroll and the orbiting scroll,wherein each compressing portion comprisesa circular arc portion of which a curvature is constant,a curved portion positioned in an inside of the circular arc portion and spaced a preset distance from the circular arc portion, anda connection portion connecting the circular arc portion to the curved portion, wherein a curvature of the connection portion changes from the circular arc portion to the curved portion.2. The scroll compressor of claim 1 , wherein the connection portion is in a shape of a cosine curve claim 1 , a Bezier curve claim 1 , a Hermite curve claim 1 , and a B-spline curve.3. The scroll compressor of claim 2 , wherein an included angle α of a first line segment connecting one end of the connection portion to a center of the compressing portion and a second line segment connecting the other end of the connection portion to the center of the compressing portion is 100° or more.4. The scroll compressor of claim 1 , wherein claim ...

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Номер записи: 22
11-02-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160040667A1
Автор: CHOI Yongkyu, KIM Cheolhwan, WON Inho
Принадлежит:

According to a scroll compressor associated with the present disclosure, the entire cross-sectional area of bypass holes formed at a compression chamber with a larger volume reduction gradient between the both compression chambers may be formed to be larger than that of bypass holes at the other compression chamber to prevent over-compression at the compression chamber with a larger volume reduction gradient, thereby enhancing the entire efficiency of the compressor. 1. A scroll compressor having both compression chambers with different volume reduction gradients , wherein the entire cross-sectional area of bypass holes formed at a compression chamber with a larger volume reduction gradient between the both compression chambers is formed to be larger than that of bypass holes at the other compression chamber.2. The scroll compressor of claim 1 , wherein the number of bypass holes formed at a compression chamber with a larger volume reduction gradient between the both compression chambers is formed to be greater than that of bypass holes formed at the other compression chamber.3. The scroll compressor of claim 1 , wherein the individual cross-sectional area of bypass holes formed at a compression chamber with a larger volume reduction gradient between the both compression chambers is formed to be larger than that of bypass holes formed at the other compression chamber.4. A scroll compressor claim 1 , comprising:a fixed scroll having a fixed wrap;a orbiting scroll tooth-coupled to the fixed wrap to have a orbiting wrap forming a first and a second compression chamber on an outer and an inner surface thereof, and a rotating shaft coupling portion is formed at a central portion thereof to perform orbiting movement with respect to the fixed scroll;a rotating shaft having an eccentric portion in which the eccentric portion is coupled to a rotating shaft coupling portion of the orbiting scroll to be overlapped with the orbiting wrap in a radial direction; anda driving unit ...

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Номер записи: 23
08-02-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180038367A1
Автор: KANAI Akihiro, SATO Hajime, Takeuchi Makoto, WATANABE Kazuhide, Yamashita Takuma, YOSHIKAWA Genta
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

A scroll compressor is provided with a stationary scroll, an orbiting scroll, and a discharge port () through which a fluid that has been compressed by both the scrolls is discharged. An end plate of the orbiting scroll is provided with an end-plate side stepped portion formed in such a way that, along a spiral of a spiral wrap (B), the height thereof increases toward a central side of the spiral and decreases toward an outer end side thereof. A spiral wrap (B) of the stationary scroll is provided with a wall-portion side stepped portion formed corresponding to the end-plate side stepped portion in such a way that the height thereof decreases toward the central side of the spiral and increases toward the outer end side thereof. Of a pair of compression chambers (A, B) which face each other on either side of the center of the stationary scroll, the ventral side compression chamber (A) in which the pressure is higher communicates with the discharge port () before the dorsal side compression chamber (B) in which the pressure is lower communicates with the discharge port (). 14-. (canceled)5. A scroll compressor comprising:a stationary scroll including a spiral wall portion erected on one side surface of an end plate;an orbiting scroll that includes a spiral wall portion erected on one side surface of an end plate and is supported so as to be capable of orbital revolution movement while being prevented from self-rotation by the wall portions being engaged with each other; anda discharge port through which a fluid that has been compressed by both the scrolls is discharged;an end-plate side stepped portion being provided on the one side surface of the end plate of one of the scrolls, the end-plate side stepped portion being formed in such a way that, along a spiral of the wall portion, a height of the end-plate side stepped portion increases toward a central side of the spiral and decreases toward an outer end side of the spiral; anda wall-portion side stepped portion ...

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Номер записи: 24
07-02-2019 дата публикации

Compressor

Номер: US20190040861A1
Автор: DOEPKER Roy J., PEREVOZCHIKOV Michael M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include first and second scrolls, a hub plate and a valve. The first scroll may include an end plate defining first and second sides, a primary discharge passage extending therethrough, and a secondary discharge passage extending therethrough and located radially outward from the primary discharge passage. The hub plate may be mounted to the first scroll and may include first and second opposite sides and a hub discharge passage in fluid communication with the primary discharge passage. The first side of the hub plate may face the second side of the end plate and may include a valve guide extending axially toward the end plate adjacent the hub discharge passage. The valve member may be secured on the valve guide for axial movement between open and closed positions to respectively allow and restrict fluid communication between the secondary discharge passage and the hub discharge passage. 1. A compressor comprising:a non-orbiting scroll member including a first end plate and a first spiral wrap, said first end plate including a primary discharge passage and a secondary discharge passage located radially outward relative to said primary discharge passage;an orbiting scroll member including a second end plate having a second spiral wrap extending therefrom and meshingly with said first spiral wrap;a hub plate mounted to said non-orbiting scroll member and having a hub discharge passage extending therethrough and in fluid communication with said primary discharge passage, said hub plate including a valve guide disposed adjacent said hub discharge passage;a valve member disposed radially outward relative to said valve guide and movable relative to said valve guide between open and closed positions, said valve member restricting fluid flow through said secondary discharge passage when in the closed position to restrict fluid communication between said secondary discharge passage and said hub discharge passage, said valve member allowing fluid flow through ...

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Номер записи: 25
15-02-2018 дата публикации

Scroll compressor

Номер: US20180045199A1
Автор: Genta Yoshikawa, Hajime Sato, Katsuhiro Fujita, Makoto Takeuchi, Takayuki Hagita, Takayuki Kuwahara
Принадлежит: Mitsubishi Heavy Industries Automotive Thermal Systems Co Ltd

In a scroll compressor that forms two suction volume parts by engaging paired fixed scroll and turning scroll with each other while scroll laps respectively erected on end plates of the fixed scroll and the turning scroll are opposed to each other and driving the turning scroll to revolve around the fixed scroll, out of the two suction volume parts, one of the suction volume parts that is formed close to a suction port provided in a housing is made larger than the other suction volume part.

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Номер записи: 26
13-02-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200049146A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Byeongchul, Lee Kangwook
Принадлежит:

A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. In a state in which the orbiting scroll and the fixed scroll are concentric with each other, when a distance between the orbiting wrap and the fixed wrap is defined as an orbiting radius, there exists an offset section having an interval larger than the orbiting radius, between a side surface of the orbiting wrap and a side surface of the fixed wrap which faces the orbiting wrap. With such a configuration, even if the fixed scroll or the orbiting scroll is transformed due to thermal expansion, interference between the fixed wrap and the orbiting wrap at a portion having a large transformation amount may be prevented. This may prevent a frictional loss or abrasion between the fixed wrap and the orbiting wrap. Further, this may restrict or minimize a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction chamber, resulting in enhanced compression efficiency. 1. A compressor , comprising:a casing;a drive motor provided in an inner space of the casing;a rotating shaft coupled to the drive motor to rotate;an orbiting scroll comprising an orbiting plate portion including a shaft coupling portion coupled to the rotating shaft, and an orbiting wrap that extends toward the casing along a circumference of orbiting plate portion in the shaft coupling portion;a fixed scroll comprising a fixed wrap provided in engagement with the orbiting wrap to compress a refrigerant, a fixed plate portion including an inlet receiving the refrigerant and an outlet spaced apart from the inlet toward the shaft coupling portion to discharge the refrigerant; andan offset portion provided in an area of at least one of the fixed wrap or the ...

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Номер записи: 27
23-02-2017 дата публикации

Three stage scroll vacuum pump

Номер: US20170051744A1
Автор: Shaffer Robert W.
Принадлежит:

A three stage vacuum pump has three stages of fixed scrolls and orbiting scrolls that operate simultaneously. A motor drives the second orbiting scroll within the third fixed scroll upon three equally spaced idlers. One idler then transmits rotation and torque into the second stage. The second orbiting scroll has involutes upon both surfaces to engage the second fixed scroll inwardly and the first fixed scroll outwardly. The first fixed scroll has fins upon its back that extend into the atmosphere to transfer heat to air cool the pump. This pump also has a fan accelerating heat transfer. The pump operates the scrolls directly from a motor or from a motor and magnetic coupling so that the atmosphere does not infiltrate the pump. 1. A three stage vacuum pump for producing a vacuum comprising:a first stage having a first fixed scroll connected to a housing and a first orbiting scroll, said first fixed scroll communicating to a space selected for evacuation, said first orbiting scroll having an inner face and an opposite outer face, said outer face of said first orbiting scroll meshing with said first fixed scroll;a second stage adjacent to said first stage inwardly, said second stage in gaseous communication to said first stage, said second stage having a second fixed scroll, said second fixed scroll meshing with said inner face of said first orbiting scroll;a third stage spaced inwardly of said second stage, said third stage in gaseous communication to said second stage, said third stage having a third fixed scroll and a second orbiting scroll, said second orbiting scroll meshing with said third fixed scroll;a driving pin journaled to say second orbiting scroll opposite said third fixed scroll;a motor operatively connected to said driving pin, said motor imparting rotation to said driving pin, said motor being generally opposite said first fixed scroll and outwardly of said second orbiting scroll; and,said motor rotating said first orbiting scroll and said second ...

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Номер записи: 28
15-05-2014 дата публикации

Scroll compressor

Номер: US20140134032A1
Автор: Ken Suitou, Kosaku Tozawa
Принадлежит: Toyota Industries Corp

A scroll compressor includes a rotation shaft, a fixed scroll, a movable scroll, a compression chamber, and a shaft support. A movable member is movable in an axial direction of the rotation shaft toward and away from the movable scroll. A rotation restriction mechanism includes a pin and a hole that is loosely fitted into the hole. An orbital radius switching mechanism moves the movable member in a first direction when a rotation speed of the rotation shaft is increased, which decreases an orbital radius of the pin relative to the hole so that an orbital radius of the movable scroll is decreased, and moves the movable member in a second direction when the rotation speed of the rotation shaft is decreased, which increases the orbital radius of the pin relative to the hole so that the orbital radius of the movable scroll is increased.

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Номер записи: 29
21-02-2019 дата публикации

COOLING ARRANGEMENT FOR COOLING AN APPARATUS

Номер: US20190055943A1
Автор: KADIJK SIMON EME
Принадлежит: PHILIPS LIGHTING HOLDING B.V.

A cooling arrangement () for cooling of an apparatus () which in use may generate heat is disclosed. The cooling arrangement () comprises a first member (), which comprises a first base () and a first spiral wrap () extending from the first base (), and a second member (), which comprises a second base () and a second spiral wrap () extending from the second base (). The first spiral wrap () and the second spiral wrap () are interleaved. The first member () is configured to at least thermally couple the apparatus () thereto. At least one of the first member () and the second member () can be moved so as to result in an orbiting motion of one of the first spiral wrap () and the second spiral wrap () relatively to the other one of the first spiral wrap () and the second spiral wrap () such that a volume of fluid in at least one space between the first spiral wrap () and the second spiral wrap () progressively moves during the orbiting motion. Thereby, a flow of fluid between the first spiral wrap () and the second spiral wrap () is generated which cools the first member () by means of dissipation of heat generated by the apparatus () by way of transfer of heat from the first member () to the flow of fluid between the first spiral wrap () and the second spiral wrap (). 1. A cooling arrangement for cooling of an apparatus which when used may generate heat , the cooling arrangement comprising:a first member comprising a first base and a first spiral wrap extending from the first base, the first member being configured to at least thermally couple the apparatus thereto;a second member comprising a second base and a second spiral wrap extending from the second base, the first spiral wrap and the second spiral wrap being interleaved;{'b': '26', 'wherein at least one of the first member and the second member can be moved so as to result in an orbiting motion of one of the first spiral wrap and the second spiral wrap relatively to the other one of the first spiral wrap and ...

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Номер записи: 30
28-02-2019 дата публикации

SCROLL COMPRESSOR HAVING A CENTRAL MAIN DISCHARGE PORT AND AN AUXILIARY DISCHARGE PORT

Номер: US20190063432A1
Автор: Denis Sébastien, GENEVOIS David, Lavy Julien
Принадлежит:

The scroll compressor comprises a fixed scroll element comprising a fixed end plate () and a fixed spiral wrap (); an orbiting scroll element comprising an orbiting end plate and an orbiting spiral wrap (), the fixed and orbiting spiral wraps () being intermeshed with each other to define pairs of compression pockets, a radial inner pair of compression pockets comprising a direct pocket () and an indirect pocket (); a central main discharge port () formed in the fixed end plate () and configured to communicate the direct pocket () with a discharge pressure volume; and an auxiliary discharge port () formed in the fixed end plate () at a position close to an outer wall side () of the fixed spiral wrap () and adjacent the inner end () of the fixed spiral wrap (). The auxiliary discharge port (), during orbiting movement of the orbiting scroll element (), is at least partially uncovered by the orbiting spiral wrap () to communicate the indirect pocket () with the discharge pressure volume. 1. A scroll compressor comprising:a hermetic housing,a fixed scroll element arranged within the hermetic housing and comprising a fixed end plate and a fixed spiral wrap extending from the fixed end plate,an orbiting scroll element arranged within the hermetic housing and comprising an orbiting end plate and an orbiting spiral wrap extending from the orbiting end plate, the fixed and orbiting spiral wraps being intermeshed with each other to define, with the fixed and orbiting end plates, pairs of compression pockets, the volume of the compression pockets decreasing from outer ends towards inner ends of the fixed and orbiting spiral wraps during orbiting movement of the orbiting scroll element, a radial inner pair of compression pockets comprising a direct pocket and an indirect pocket,a central main discharge port formed in the fixed end plate and configured to communicate the direct pocket with a discharge pressure volume formed within the hermetic housing,wherein an auxiliary ...

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Номер записи: 31
27-02-2020 дата публикации

Asymmetrical scroll compressor

Номер: US20200063737A1
Автор: Atsushi Sakuda, Hiroaki Nakai
Принадлежит: Panasonic Intellectual Property Management Co Ltd

In an asymmetrical scroll compressor, at least one injection port through which an intermediate-pressure refrigerant is injected into a first compression chamber and a second compression chamber, at least one injection port penetrating an end plate of a fixed scroll at a position where the injection port is open to the first compression chamber or the second compression chamber during a compression stroke after a suction refrigerant is introduced and closed. Further, the amount of a refrigerant injected from an injection port into the first compression chamber is made more than the amount of a refrigerant injected from the injection port into the second compression chamber.

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Номер записи: 32
11-03-2021 дата публикации

MOTOR OPERATED COMPRESSOR

Номер: US20210071663A1
Автор: Lee Byeongchul, PARK Honghee, PARK JUNGHOON, Park Kyoungjun
Принадлежит: LG ELECTRONICS INC.

A motor operated compressor according to the present embodiment may include a main housing; an electric motor unit; a rotation shaft; a fixed scroll coupled to an inner space of the main housing; an orbiting scroll provided that performs an orbiting movement with respect to the fixed scroll; a rear housing provided on an opposite side to the fixed scroll with the orbiting scroll therebetween and coupled to the main housing, and disposed with a first space to communicate with a discharge side of the compression chamber; and a first sealing portion provided to surround the first space to form a second space on an outer edge of the first space, wherein the second space includes a first region and a second region in fluid communication with each other. Accordingly, a horizontal motor operated compressor in which a frame and a fixed scroll are integrated may be provided. 1. A motor operated compressor , comprising:a main housing;a rear housing coupled to the main housing and comprising a first space;an electric motor unit disposed in an inner space of the main housing;a rotation shaft coupled to the electric motor unit and being configured to rotate;a fixed scroll disposed in the inner space of the main housing, the fixed scroll comprising a fixed end plate portion and a fixed wrap disposed on a side surface of the fixed end plate portion; engage with the fixed wrap to form a compression chamber having a discharge side in fluid communication with the first space, and', 'perform an orbiting movement with respect to the fixed scroll; and, 'an orbiting scroll disposed between the fixed scroll and the rear housing, the orbiting scroll comprising an orbiting end plate portion and an orbiting wrap disposed on a side of the orbiting end plate portion, the orbiting wrap being configured toa first sealing portion configured to surround the first space to form a second space on an outer edge of the first space, a first region disposed between an axial side surface of the orbiting ...

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Номер записи: 33
17-03-2016 дата публикации

Compressor Having Capacity Modulation Assembly

Номер: US20160076543A1
Автор: Akei Masao, DOEPKER Roy J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region. 1. A compressor comprising:a shell assembly defining a suction-pressure region and a discharge-pressure region, said shell assembly including a partition separating said suction-pressure region from said discharge-pressure region;a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a modulation port, a biasing passage, and a first spiral wrap extending from said first end plate;a second scroll member disposed within said shell assembly and including a second end plate having a second spiral wrap extending therefrom, said first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement of said second scroll member relative to said first scroll member, said modulation port in communication with a first one of said pockets, said biasing passage in communication with a second one of said pockets;a floating seal assembly engaged with said partition and said first scroll member and isolating said discharge-pressure region from said ...

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Номер записи: 34
15-03-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180073505A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Kangwook
Принадлежит:

A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, communicating with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet. This configuration may prevent a discharge delay in advance in each compression chamber, and thus, preventing a compression loss. 1. A scroll compressor , comprising:a first compression chamber;a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber;a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet; anda second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet.2. The compressor of claim 1 , wherein a sectional area of each of the discharge outlets is larger than a sectional of each of the discharge inlets.3. The compressor of claim 2 , wherein the first discharge inlet and the first discharge outlet have different shapes from each other.4. The compressor of claim 3 , wherein a portion of the first discharge outlet is stepped between the first discharge inlet and the first discharge outlet claim 3 , to protrude further outward than an inner circumferential surface of the first discharge inlet in a radial direction ...

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Номер записи: 35
15-03-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180073506A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Kangwook
Принадлежит:

A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet. The first discharge inlet and the first discharge outlet may have a same cross section, and the second discharge inlet and the second discharge outlet may have a same cross section. Accordingly, a discharge delay in each compression chamber may be prevented in advanced, and thus, compression loss may be suppressed. 1. A scroll compressor , comprising:a first compression chamber;a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber;a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet; anda second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet, wherein the first discharge inlet and the first discharge outlet have a same cross section, and the second discharge inlet and the second discharge outlet have a same cross section.2. The compressor of claim 1 , wherein the discharge inlet and the discharge outlet of at least one of the first discharge port or the second discharge port have a same sectional area.3. The ...

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Номер записи: 36
15-03-2018 дата публикации

Scroll compressor

Номер: US20180073507A1
Автор: Cheolhwan Kim, Kangwook Lee, Yongkyu Choi
Принадлежит: LG ELECTRONICS INC

A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss.

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Номер записи: 37
07-03-2019 дата публикации

SCROLL COMPRESSOR

Номер: US20190072092A1
Автор: KIM Byung-gu, Kim Do-Hyun, Kim Eun-Suk, KIM Yang-sun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A scroll compressor includes a fixed scroll including a fixed mirror-like surface and a fixed wrap that is extended from the fixed mirror-like surface, formed in a hybrid curve, and includes a thick portion thicker than other portions; an orbiting scroll including an orbiting mirror-like surface and an orbiting wrap extended from the orbiting mirror-like surface and formed in a hybrid curve; and a rotating shaft configured to rotate the orbiting scroll, wherein the orbiting scroll revolves relative to the fixed scroll. A center of a curve of a center portion of the fixed wrap is located at a position offset by a predetermined distance in a direction of reducing a thickness of the thick portion of the fixed wrap from a center of the fixed mirror-like surface, and a center of a curve of a center portion of the orbiting wrap is offset to correspond to the fixed wrap. 1. A scroll compressor comprising:a fixed scroll including a fixed mirror-like surface and a fixed wrap that is extended from the fixed mirror-like surface, is formed in a hybrid curve, and includes a thick portion that is thicker than other portions;an orbiting scroll including an orbiting mirror-like surface and an orbiting wrap that is extended from the orbiting mirror-like surface and is formed in a hybrid curve; anda rotating shaft configured to rotate the orbiting scroll, wherein the orbiting scroll revolves relative to the fixed scroll,wherein a center of a curve of a center portion of the fixed wrap is located at a position that is offset by a predetermined distance in a direction of reducing a thickness of the thick portion of the fixed wrap from a center of the fixed mirror-like surface, andwherein a center of a curve of a center portion of the orbiting wrap is offset to correspond to the fixed wrap.2. The scroll compressor of claim 1 , whereinthe center of the curve of the center portion of the fixed wrap is offset from the center of the fixed mirror-like surface by ½ or less of an eccentric ...

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Номер записи: 38
24-03-2022 дата публикации

Scroll compressor

Номер: US20220090600A1
Автор: Jeong Ki Seo, Kyung Jae Lee
Принадлежит: Hanon Systems Corp

A scroll compressor including a center housing; a front housing fastened to the center housing and forming a suction chamber; a rear housing fastened to the center housing and forming a compression mechanism accommodation space. Fixed scroll is in the compression mechanism accommodation space. An orbiting scroll interposes between the center housing and the fixed scroll forming a compression chamber together with the fixed scroll. Fixed scroll may include a fixed scroll end plate and a fixed scroll side plate protruded from outer circumferential portion of fixed scroll end plate, fastened to the center housing, and forming orbiting space of orbiting scroll. Outer circumferential portion of the center housing may be formed with an inflow hole for communicating with the suction chamber. Distal end surface of the fixed scroll side plate is formed with a suction port for guiding the refrigerant of the inflow hole to the compression chamber.

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Номер записи: 39
14-03-2019 дата публикации

Scroll compressor with bypass portions

Номер: US20190078567A1
Автор: Cheolhwan Kim, Inho Won, Yongkyu Choi
Принадлежит: LG ELECTRONICS INC

There is disclosed a scroll compressor according to the present disclosure in which a discharge port is formed at a central portion thereof, and a pair of two compression chambers continuously moving toward the discharge port are formed, and a plurality of bypass portions are formed at each interval along a movement path of each compression chamber in the both compression chambers, and compression gradients of the both compression chambers are formed to be different from each other, wherein when an interval between a bypass portion closest to the discharge port and another bypass portion adjacent to the bypass portion among the bypass portions of each compression chamber is defined as a first interval, respectively, a first interval of a second bypass portion belonging to a compression chamber having a relatively larger compression gradient is formed to be smaller than that of a first bypass portion belonging to the other compression chamber between the both compressor chambers.

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Номер записи: 40
24-03-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160084250A1
Автор: Hayashi Akihiro, Imai Yusuke, Morimoto Takashi, Ogata Takeshi, Sakuda Atsushi, Shintaku Hidenobu, Yamada Sadayuki
Принадлежит:

A scroll compressor of the present invention includes a partition plate , a fixed scroll , an orbiting scroll , a rotation-restraining member , a main bearing , a discharge space H, a ring-shaped first seal member and a ring-shaped second seal member . A pressure in the medium pressure space M is set lower than that in the discharge space H and higher than that in the low pressure space . The first seal member and the second seal member are sandwiched by the partition plate by means of a closing member , the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing . If a high pressure is applied to the discharge space H, the fixed scroll can be pressed against the orbiting scroll 16-. (canceled)7. scroll compressor comprising:a partition plate for partitioning an interior of a hermetic container into a high pressure space and a low pressure space;a fixed scroll which is adjacent to the partition plate;an orbiting scroll which is meshed with the fixed scroll and which forms compression chambers;a rotation-restraining member for preventing the orbiting scroll from rotating; anda main bearing for supporting the orbiting scroll, in whichthe fixed scroll, the orbiting scroll, the rotation-restraining member and the main bearing are placed in the low pressure space,the fixed scroll and the orbiting scroll are placed between the partition plate and the main bearing,the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing, whereinthe scroll compressor further includesa discharge space which is formed between the partition plate and the fixed scroll and which is in communication with the compression chamber,a ring-shaped first seal member placed on an outer periphery of the discharge space between the partition plate and the fixed scroll, anda ring-shaped second seal member placed on an outer periphery of the first seal member between the partition plate and ...

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Номер записи: 41
29-03-2018 дата публикации

SCROLL TYPE COMPRESSOR

Номер: US20180087508A1
Автор: Fukaya Yoshihiro, Fukutani Yoshikazu, TSUBAI Shinji
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A scroll type compressor includes a fixed scroll including a base plate and a scroll wall. The base plate has a main discharge port, a sub-discharge port, an injection port and a valve. The valve includes first and second arms and a valve base including an attaching portion. Each of the first and the second arms includes proximal and distal ends. The first and the second arms extend from the proximal ends on the valve base to the main discharge port and the sub-discharge port, respectively. The first and the second arms extend so as to come closer to each other at the distal ends thereof than at the proximal ends thereof. The injection port is disposed in an injection arrangement area that is an area located between the first and the second arms and expands larger on the proximal ends side than on the distal ends side. 1. A scroll type compressor comprising:a fixed scroll including a base plate and a scroll wall, the base plate including first and second surfaces on opposite sides of the base plate, the scroll wall extending from the first surface of the base plate; anda movable scroll including a base plate and a scroll wall, the base plate of the movable scroll facing the base plate of the fixed scroll, the scroll wall of the movable scroll extending from the base plate of the movable scroll toward the base plate of the fixed scroll to mesh with the scroll wall of the fixed scroll, the movable scroll cooperating with the fixed scroll to define a compression region and being configured to make an orbital motion to compress fluid in the compression region, whereinthe base plate of the fixed scroll has therethrough a main discharge port, a sub-discharge port, and an injection port that are configured to communicate with the compression region,the sub-discharge port is disposed radially outward of the main discharge port with respect to a center of the scroll wall of the fixed scroll,the injection port is disposed radially outward of the main discharge port with ...

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Номер записи: 42
05-05-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220136500A1
Автор: Imai Tetsuya, SATO Taizo
Принадлежит: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

[Problem] A scroll compressor is provided which is capable of effectively reducing a pressure loss in a pathway extending from a discharge space to a discharge port.

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Номер записи: 43
05-05-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220136501A1
Автор: Han Nara, KANG Mose, Park Jihoon, YUN Juhwan
Принадлежит:

A scroll compressor is provided that may include a casing, a drive motor, an orbiting scroll, a non-orbiting scroll, and a floating plate provided with a cover portion to cover an area between an outer wall portion and an inner wall portion of the non-orbiting scroll so as to form a back pressure chamber with the non-orbiting scroll, and a valve accommodating portion that extends from the cover portion so as to accommodate a discharge valve configured to open and close a discharge port. Accordingly, structure for forming a back pressure chamber is simplified to thereby reduce the number of components and man-hours required for assembly.

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Номер записи: 44
19-03-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200088194A1
Автор: Choi Jungsun, Choi Yong Kyu, Kim Cheol Hwan, Lee Kangwook
Принадлежит:

A scroll compressor, and more particularly, to a scroll compressor including a communication groove which may decrease discharge resistance is provided. The scroll compressor may include a fixed scroll having a fixed end plate and a fixed wrap, and an orbiting scroll configured to perform an orbiting movement about the fixed scroll and having an orbiting end plate and an orbiting wrap. A communication groove in the form of a recessed groove may be formed in an inner surface of the orbiting end plate, and a refrigerant may flow through the communication groove according to a state in which the fixed wrap overlaps the communication groove such that there is an effect in that an opening efficiency of a discharge hole is improved at an initial stage of discharge. 1. A compressor , comprising:a casing;a drive motor provided in the inner space of the casing;a rotary shaft coupled to the driving motor;an orbiting scroll comprising an orbiting end plate including a rotary shaft coupler coupled to the rotary shaft, and an orbiting wrap that extends toward the casing along the circumference of orbiting end plate from the rotary shaft coupler;a fixed scroll comprising a fixed end plate includes a center provided to be inserted into the rotary shaft, a fixed wrap that extends along the circumference of fixed end plate to engage with the orbiting wrap to compress a refrigerant, a plurality of discharge hole provided to penetrate to the fixed end plate near the center to discharge the refrigerant;wherein orbiting scroll further comprises a communication groove provided to recess on a portion of the one surface facing the fixed wrap.2. The compressor according to claim 1 , wherein the discharge hole include a first discharge hole provided inside than the fixing wrap and penetrating the fixed end plate claim 1 , and a second discharge hole spaced apart from the first discharge hole and penetrating the fixed end plate claim 1 , wherein the length of the communication groove is ...

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Номер записи: 45
26-06-2014 дата публикации

Scroll compressor

Номер: US20140178232A1
Автор: Hiroki Nagano, Ken Suitou, Tatsushi Mori
Принадлежит: Toyota Industries Corp

A scroll compressor includes a housing having therein a discharge pressure region, a compression pressure region and a suction pressure region; a fixed scroll to form a discharge chamber as the discharge pressure region; and a movable scroll cooperating with the fixed scroll to form a compression chamber as the compression pressure region. The discharge pressure region includes an oil separation chamber connected to at least one of the compression pressure region and the suction pressure region through an oil supply passage having a flow restrictor. The flow restrictor is provided by a gap between an oil supply hole formed in the fixed scroll and an insertion member inserted in the oil supply hole. The gap is in the form of a spiral groove provided in at least one of an inner peripheral surface of the oil supply hole and an outer peripheral surface of the insertion member.

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Номер записи: 46
06-04-2017 дата публикации

FLUID COMPRESSOR

Номер: US20170097002A1
Автор: ISHIZONO Fumihiko, KAKUDA Masayuki, TAKAMURA Yuji, TATSUWAKI Kohei
Принадлежит:

A fluid compressor includes a closed container having an inlet, a compression mechanism including a compression chamber in which fluid flowing into the closed container through the inlet is compressed, a discharge port through which the fluid compressed in the compression chamber is allowed to flow, a discharge valve opening and closing the discharge port, and a valve retainer limiting an amount of lift of the discharge valve. The discharge valve includes a curved portion whose shape is defined by one or more curvatures. When the discharge port is closed by the discharge valve, the valve retainer and the discharge valve are spaced apart from each other. 114-. (canceled)15. A fluid compressor comprising:a closed container having an inlet;a compression mechanism including a compression chamber in which fluid flowing into the closed container through the inlet is compressed;a discharge port through which the fluid compressed in the compression chamber is allowed to flow;a discharge valve opening and closing the discharge port; anda valve retainer limiting an amount of lift of the discharge valve,the discharge valve includinga curved portion having an annular shape defined by one or more curvatures, anda tongue portion fixed to the compression mechanism and projecting inward from an inner periphery of the curved portion,a part of the curved portion provided at a position toward which the tongue portion projects being positioned above the discharge port,when the discharge port is closed by the discharge valve, the valve retainer and the discharge valve being spaced apart from each other.16. The fluid compressor of claim 15 , wherein the curved portion has a U shape.17. The fluid compressor of claim 15 , wherein the curved portion has a helical shape.18. The fluid compressor of claim 15 , further comprising:a fixed scroll including a first helical portion; andan orbiting scroll including a second helical portion whose whirling direction is opposite to a whirling direction ...

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Номер записи: 47
14-04-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160102665A1
Автор: Imai Yusuke, Morimoto Takashi, Ogata Takeshi, Sakuda Atsushi, Shintaku Hidenobu, Yamada Sadayuki
Принадлежит:

A scroll compressor of the present invention includes a partition plate , a fixed scroll , an orbiting scroll , a rotation-restraining member and a main bearing . An inner wall of a fixed spiral lap of the fixed scroll is formed up to a location close to an ending-end of an orbiting spiral lap of the orbiting scroll , thereby differentiating, from each other, a containment capacity of one (A) of compression chambers and a containment capacity of the other compression chamber B, the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and a main bearing , and high pressure is applied to a discharge space H formed between the partition plate and the fixed scroll . According to this, the fixed scroll can be pressed against the orbiting scroll 1. A scroll compressor comprising:a partition plate for partitioning an interior of a hermetic container into a high pressure space and a low pressure space;a fixed scroll which is adjacent to the partition plate;an orbiting scroll which is meshed with the fixed scroll and which forms compression chambers;a rotation-restraining member for preventing the orbiting scroll from rotating;a main bearing for supporting the orbiting scroll, in whichthe fixed scroll, the orbiting scroll, the rotation-restraining member and the main bearing are placed in the low pressure space,the fixed scroll and the orbiting scroll are placed between the partition plate and the main bearing, andthe fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing, whereinan inner wall of a fixed spiral lap of the fixed scroll is formed up to a location close to an ending-end of an orbiting spiral lap of the orbiting scroll, thereby differentiating, from each other, a containment capacity of one of compression chambers formed by the inner wall of the fixed spiral lap and an outer wall of the orbiting spiral lap, and a containment capacity of the other compression chamber ...

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Номер записи: 48
14-04-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160102667A1
Автор: Imai Yusuke, Morimoto Takashi, Ogata Takeshi, Sakuda Atsushi, Shintaku Hidenobu, Yamada Sadayuki
Принадлежит: Panasonic Intellectual Property Management Co., Ltd.

A scroll compressor of the present invention includes a first discharge port which is in communication with a compression chamber , a discharge space H which is in communication with the first discharge port , a second discharge port which brings the discharge space H into communication with a high pressure space , a discharge check valve capable of closing the second discharge port , a bypass port which brings the compression chamber into communication with the discharge space H, and a bypass check valve capable of closing the bypass port , the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing , a high pressure is applied to the discharge space H and according to this, the fixed scroll can be pressed against the orbiting scroll 1. A scroll compressor comprising:a partition plate for partitioning an interior of a hermetic container into a high pressure space and a low pressure space;a fixed scroll which is adjacent to the partition plate;an orbiting scroll which is meshed with the fixed scroll and which forms compression chambers;a rotation-restraining member for preventing the orbiting scroll from rotating; anda main bearing for supporting the orbiting scroll, whereinthe fixed scroll, the orbiting scroll, the rotation-restraining member and the main bearing are placed in the low pressure space,the fixed scroll and the orbiting scroll are placed between the partition plate and the main bearing,the fixed scroll can move in an axial direction of the fixed scroll between the partition plate and the main bearing,the scroll compressor further includesa first discharge port which is formed in the fixed scroll and which is in communication with the compression chamber,a discharge space which is formed between the partition plate and the fixed scroll and which is in communication with the first discharge port,a second discharge port which is formed in the partition plate and which brings the discharge space into ...

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Номер записи: 49
26-03-2020 дата публикации

Scroll fluid machine

Номер: US20200095993A1
Автор: Hajime Sato, Takuma YAMASHITA, Yohei Hotta, Yoshiyuki Kimata
Принадлежит: Mitsubishi Heavy Industries Thermal Systems Ltd

In this scroll fluid machine, a tip seal ( 7 ) that is in contact with facing end plates ( 5 a ) and that is for sealing in a fluid is provided to a tip seal groove ( 3 d ) formed on the tooth tip of a wall ( 3 b ). The tooth bottoms of the end plates ( 5 a ) have a shape in which a central section is deeper than a side section ( 5 d 3 ) in a width direction orthogonal to the spiral direction of a wall ( 5 b ). During operation, the protrusion amount (δ) when the tip seal ( 7 ) protrudes from the tooth tip of the wall ( 3 b ) in an inclined section and is in contact with the facing end plates is greater than the protrusion amount (δ) when the tip seal ( 7 ) protrudes from the tooth tip of the wall ( 3 b ) in a flat section and is in contact with the facing end plates.

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Номер записи: 50
26-03-2020 дата публикации

SCROLL COMPRESSOR HAVING WRAP WITH REINFORCING PORTION

Номер: US20200095994A1
Автор: CHOI Yongkyu, KIM Cheolhwan, KIM Taekyoung
Принадлежит:

A scroll compressor is provided that may include an orbiting scroll having an orbiting wrap, and which performs an orbiting motion; and a fixed scroll having a fixed wrap to form a compression chamber including a suction chamber, an intermediate pressure chamber, and a discharge chamber, by being engaged with the orbiting wrap. A wrap thickness of the fixed wrap may be greater than a wrap thickness of the orbiting wrap within a range which forms the suction chamber. With such a configuration, even if the fixed scroll or the orbiting scroll is thermally-expanded, a transformation of the fixed wrap at a suction side may be prevented. This may prevent a gap between the fixed wrap and the orbiting wrap at an opposite side to the suction side, thereby enhancing compression efficiency. 1. A compressor , comprising:a casing;a drive motor provided in the inner space of the casing;a rotating shaft coupled to the driving motor;an orbiting scroll comprising an orbiting plate portion coupled to the rotating shaft, and a orbiting wrap extending along a circumference direction of the orbiting plate portion;a fixed scroll comprising a fixed wrap provided in engagement with the orbiting wrap to compress a refrigerant, a fixed plate portion including an inlet receiving the refrigerant and an outlet spaced apart from the suction opening to discharge the refrigerant;wherein the fixed wrap includes a reinforcement part in which a specific area is thicker than an area adjacent to thereto, wherein the reinforcement part is provided in at least part of an area between the rotation shaft and the inlet.2. The compressor according to claim 1 , wherein the reinforcement part is provided in an area where the fixed wrap and the inlet are faced each other.3. The compressor according to claim 1 , wherein the reinforcement part is formed as protrude on at least one of the inner surface and the outer surface of the fixed wrap.4. The compressor according to claim 3 , wherein the reinforcement part ...

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Номер записи: 51
04-04-2019 дата публикации

Variable Volume Ratio Compressor

Номер: US20190101120A1
Автор: Kirill M. Ignatiev, Michael M. Perevozchikov, Roy J. Doepker
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a shell assembly, first and second scrolls, and a valve assembly. The shell assembly may define a discharge chamber. The first scroll may be disposed within the discharge chamber and may include a first end plate and a first spiral wrap. The first end plate may include a discharge passage in communication with the discharge chamber. The second scroll may be disposed within the discharge chamber and may include a second end plate and a second spiral wrap. The first and second spiral wraps define fluid pockets therebetween. The second end plate may include a port selectively communicating with one of the fluid pockets. The valve assembly may be mounted to the second scroll and may include a valve member that is movable between open and closed positions to allow and restrict communication between the port and the discharge chamber.

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Номер записи: 52
02-06-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220170461A1
Автор: Imai Tetsuya, INABA Hironobu, SATO Taizo
Принадлежит: SANDEN AUTOMOTIVE COMPONENTS CORPORATION

[Problem] A scroll compressor is provided which has improved workability when a back pressure chamber and a compression chamber are communicated with each other. 1. A scroll compressor which has a compression mechanism including a fixed scroll and a movable scroll respectively formed at surfaces of mirror plates with spiral laps facing each other , and in which the movable scroll is revolved and turned with respect to the fixed scroll to thereby compress a working fluid in a compression chamber formed between the laps of both scrolls , comprising:a back pressure chamber formed in a back surface of the mirror plate of the movable scroll; anda communication hole formed in the mirror plate of the movable scroll and communicating the back pressure chamber and the compression chamber with each other,wherein the communication hole is constituted of a large-diameter hole section located on the back pressure chamber side of the mirror plate of the movable scroll and a small-diameter hole section continuously extending from the large-diameter hole section to the compression chamber.2. The scroll compressor according to claim 1 , wherein the length dimension of the small-diameter hole section is smaller than the length dimension of the large-diameter hole section.3. A scroll compressor which has a compression mechanism including a fixed scroll and a movable scroll respectively formed at surfaces of mirror plates with spiral laps facing each other claim 1 , and in which the movable scroll is revolved and turned with respect to the fixed scroll to thereby compress a working fluid in a compression chamber formed between the laps of both scrolls claim 1 , comprising:a back pressure chamber formed in a back surface of the mirror plate of the movable scroll;a mounting hole formed in the mirror plate of the movable scroll and extending from the back pressure chamber to the compression chamber; anda communication member installed in the mountingwherein the communication member has a ...

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Номер записи: 53
02-04-2020 дата публикации

Motor operated compressor

Номер: US20200102956A1
Автор: Byeongchul Lee, Junghoon Park, Kyoungjun Park, Sanghun Seong
Принадлежит: LG ELECTRONICS INC

A motor operated compressor includes: a main housing having a motor chamber; a frame provided on one side of the motor chamber and coupled to the main housing; a fixed scroll coupled to one side surface of the frame; an orbiting scroll provided to perform an orbiting movement between the frame and the fixed scroll, and form a compression chamber along with the fixed scroll; a sealing member provided on one side surface of the orbiting scroll to form a back pressure chamber between the orbiting scroll and the frame; and a plate provided between the frame and the fixed scroll and between the frame and the orbiting scroll, where the plate includes a sealing portion at least part of which is positioned between the frame and the fixed scroll; and a sliding portion extended from the sealing portion and positioned between the frame and the orbiting scroll.

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Номер записи: 54
02-04-2020 дата публикации

Scroll compressor with wrap having gradually decreasing thickness

Номер: US20200102957A1
Автор: Cheolhwan Kim, Howon Lee, Jungsun Choi
Принадлежит: LG ELECTRONICS INC

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.

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Номер записи: 55
25-08-2022 дата публикации

COMPRESSOR AND REFRIGERATION DEVICE

Номер: US20220268278A1
Автор: HUANG Baiying, HUANG Xijin, JIANG Bo, LI Xiaolei, LIU Junbo, QIAN Canyu, ZHAO Yuantie
Принадлежит: GUANGDONG MIDEA ENVIRONMENTAL TECHNOLOGIES CORPORATION LIMITED

A compressor and a refrigeration device are provided. The compressor has a casing and a main frame disposed in the casing. The main frame has a guide structure configured to position the main frame. By coordination between the guide structure and a tooling, the process for positioning the main frame can be effectively simplified, the efficiency of positioning the main frame can be improved, and the assembly operation by workers can be facilitated. 1. A compressor comprising:a casing; anda main frame, being disposed in the casing,wherein the main frame comprises a guide structure, and the guide structure is configured to position the main frame.2. The compressor according to claim 1 , wherein the main frame further comprises a body claim 1 , and the guide structure comprises:a guiding cavity, wherein the guiding cavity is disposed in the body and an end of the guiding cavity is open; anda centering cavity, wherein the centering cavity is disposed in the body and communicates with the guiding cavity.3. The compressor according to claim 2 , wherein the centering cavity comprises:a first sub-cavity, being disposed in the body and communicating with the guiding cavity; anda second sub-cavity, being disposed between the guiding cavity and the first sub-cavity, wherein the inner wall of the second sub-cavity is set inclined.4. The compressor according to claim 3 , further comprising:a rotating shaft, being disposed in the casing, wherein the guiding cavity and the centering cavity are distributed along an axis direction of the rotating shaft; anda first vortex disk, being connected with the rotating shaft and supported on the main frame.5. The compressor according to claim 4 , wherein:a straight line which a bus of the inner wall of the second sub-cavity located forms an included angle with an axis of the rotating shaft, andthe included angle is greater than or equal to 5°.6. The compressor according to claim 4 , wherein:the main frame is sectioned along a direction ...

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Номер записи: 56
25-04-2019 дата публикации

Scroll fluid machine

Номер: US20190120230A1
Автор: Hajime Sato, Yohei Hotta, Yoshiyuki Kimata
Принадлежит: Mitsubishi Heavy Industries Thermal Systems Ltd

Provided is a scroll fluid machine that makes it possible to attenuate the bending stress applied to the base of a wall body having an inclined section. The scroll fluid machine is provided with a wall body inclined section in which the distance between the facing surfaces of an end plate of a fixed scroll and an end plate of a rotating scroll that face each other continuously decreases from the outer circumferential side toward the inner circumferential side. A mesh clearance that is a gap between wall bodies formed when the wall bodies mesh with each other is larger on the outer circumferential side of the inclined section than on the inner circumferential side of the inclined section. The mesh clearance is made larger by drawing the wall surface of a wall body further back toward the central side of the wall body in the thickness direction than the original wall surface profile thereof.

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Номер записи: 57
27-05-2021 дата публикации

COMPRESSOR

Номер: US20210156381A1
Автор: Fukuda Akinori, Funakosi Daisuke, NOBA Keisuke, OKA Hideto, WATANABE Kenji
Принадлежит:

A compressor includes fixed scroll () and revolving scroll () configuring compression mechanism (), compression chamber (), intake chamber (), discharge port (), muffler (), and heat-insulating member () provided between fixed scroll () and muffler (). After a refrigerant gas taken into intake chamber () is compressed by revolving scroll () revolving and compression chamber () moving while changing a volume of compression chamber (), the refrigerant gas is discharged from discharge port (). The refrigerant gas discharged from discharge port () is discharged into muffler space () formed by muffler (). Heat-insulating member () includes heat-insulating member discharge port (), lead valve (), and recess (). 1. A compressor comprising:a fixed scroll and a revolving scroll configuring a compression mechanism;a compression chamber formed between the fixed scroll and the revolving scroll;an intake chamber provided on an outer circumferential side of the fixed scroll;a discharge port provided in a central part of the fixed scroll;a muffler provided to cover the discharge port at an upper part of the fixed scroll; anda heat-insulating member provided between the fixed scroll and the muffler,wherein after a refrigerant gas taken into the intake chamber is compressed by the revolving scroll revolving and the compression chamber moving while changing a volume of the compressor, the refrigerant gas is discharged from the discharge port,the refrigerant gas discharged from the discharge port is discharged into a muffler space formed by the muffler, and a heat-insulating member discharge port provided in a portion facing the discharge port,', 'a lead valve provided on a surface, of the heat-insulating member, on a side opposite to a side facing the fixed scroll, and', 'a recess provided on the surface, of the heat-insulating member, facing the fixed scroll and provided in a 360-degree area in a circumferential direction facing the intake chamber., 'the heat-insulating member ...

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Номер записи: 58
12-05-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160131134A1
Автор: FUKUHARA Koichi, ISHIZONO Fumihiko, KAKUDA Masayuki, OKAMOTO Masaya, SUGAWA Masaaki, TATSUWAKI Kohei
Принадлежит:

A scroll compressor to compress fluid in a compression chamber formed by combining a scroll wrap of a fixed scroll and a scroll wrap of an orbiting scroll, the scroll wrap of the fixed scroll and the scroll wrap of the orbiting scroll each having a scroll inner end part having a bulb shape defined by an outer surface involute curve, an inner surface involute curve, and a plurality of arcs connecting an end of the outer surface involute curve and an end of the inner surface involute curve, at least one of the scroll inner end parts being formed in an n-tier stair-like shape in which n≧3) number of bulb shapes are stacked on top of one another in an upright direction of the scroll wrap, the scroll compressor being configured to satisfy φos(0)>φos(1)>φos(2)> . . . >φos(n−1) where involute roll angles of the outer surface involute curve in tiers of the stair-like shape of the scroll inner end part are φos(0), φos(1), φos(2), . . . , φos(n−1), respectively, from a wrap tip side to a wrap root side. 1. A scroll compressor to compress fluid in a compression chamber formed by combining a scroll wrap of a fixed scroll and a scroll wrap of an orbiting scroll , an outer surface involute curve,', 'an inner surface involute curve, and', 'a plurality of arcs connecting an end of the outer surface involute curve and an end of the inner surface involute curve,, 'the scroll wrap of the fixed scroll and the scroll wrap of the orbiting scroll each having a scroll inner end part having a bulb shape defined by'}{'b': '3', 'at least one of the scroll inner end parts being formed in an n-tier stair-like shape in which n number of bulb shapes are stacked on top of one another in an upright direction of the scroll wrap, where the number n is equal to or larger than ,'} {'br': None, 'i': 'n', 'φos(0)>φos(1)>φos(2)> . . . >φos(−1)'}, 'the scroll compressor being configured to satisfy'}where involute roll angles of the outer surface involute curve in tiers of the stair-like shape of the scroll ...

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Номер записи: 59
21-05-2015 дата публикации

SCROLL COMPRESSOR AND AIR CONDITIONER INCLUDING A SCROLL COMPRESSOR

Номер: US20150135764A1
Автор: Kim Beomchan, Kim Byeongsu, Ryu Byoungjin
Принадлежит:

A scroll compressor and an air conditioner including a scroll compressor are provided. The scroll compressor may include a casing, a fixed scroll, an orbiting scroll, and an injection passage. The fixed scroll may further include a first injection hole and a second injection hole formed on a spiral flow passage, and a third injection hole and a fourth injection hole formed on the spiral flow passage at a position inwardly rotated by about 360 degrees from the first injection hole and the second injection hole along the spiral flow passage. The first injection hole and the third injection hole may be formed on an outer lane of the spiral flow passage, and the second injection hole and the fourth injection hole may be formed on an inner lane of the spiral flow passage. 1. A scroll compressor , comprising:a casing forming an enclosed space;a fixed scroll comprising a fixed wrap that defines a spiral flow passage;an orbiting scroll rotatably disposed in the casing, and comprising an orbiting wrap adapted to mutually engage with the fixed wrap to form a plurality of compression chambers; andat least one injection passage provided in the fixed scroll to inject refrigerant into the plurality of compression chambers, wherein the fixed scroll comprises a plurality of injection holes in fluid communication with the spiral flow passage, wherein the plurality of injection holes includes a first injection hole and a second injection hole, and a third injection hole and a fourth injection hole positioned approximately one spiral turn away from the first and the second injection hole along the spiral flow passage, wherein the first injection hole and the third injection hole are formed on an outer lane of the spiral flow passage, and wherein the second injection hole and the fourth injection hole are formed on an inner lane of the spiral flow passage.2. The scroll compressor of claim 1 , wherein the at least one injection passage is in fluid communication with the first injection ...

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Номер записи: 60
03-06-2021 дата публикации

Compressor Having Capacity Modulation Assembly

Номер: US20210164470A1
Автор: Masao Akei, Roy J. Doepker
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region.

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Номер записи: 61
08-09-2022 дата публикации

SCROLL COMPRESSOR WITH RECESSES AND PROTRUSIONS

Номер: US20220282731A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Byeongchul
Принадлежит:

A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented. 1. A compressor comprising:a case;a drive motor fixed to the inside of the case to rotate a rotating shaft;a orbiting scroll including an orbiting plate portion supporting the rotating shaft, and an orbiting wrap extending along a circumference of the orbiting plate portion;a fixed scroll including a fixed end plate fixed to the case, and a fixed wrap provided to compress a refrigerant in engagement with the orbiting wrap in the fixed end plate; andwherein the orbital wrap disposed between the direction toward the outer end of the orbital wrap from the rotation shaft and the direction toward the inner end of the fixed wrap from the rotational shaft is provided with a section in which the radius of curvature varies.2. The compressor according to claim 1 , wherein the orbiting scroll includes a rotating shaft coupling part supporting the rotating shaft and extending the orbiting wrap claim 1 ,Wherein the rotating shaft coupling portion includes a concave portion that is depressed to avoid the end of the fixing wrap, and a protrusion extending from the concave portion and protruding toward the fixing wrap,wherein the orbital wrap disposed between the direction toward the ...

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Номер записи: 62
09-05-2019 дата публикации

SCROLL COMPRESSOR

Номер: US20190136857A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Kangwook
Принадлежит:

A scroll compressor is provided that may include a first compression chamber, a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber, a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet, and a second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the discharge outlet of at least one of the first discharge port or the second discharge port may have a larger sectional area than the discharge inlet. Accordingly, a discharge delay in each compression chamber may be prevented in advance, thereby suppressing compression loss. 1. A scroll compressor , comprising:a first compression chamber;a second compression chamber separated from the first compression chamber, and having a greater compression ratio than the first compression chamber;a first discharge port that communicates with the first compression chamber and provided with a first discharge inlet and a first discharge outlet; anda second discharge port separated from the first discharge port, that communicates with the second compression chamber, and provided with a second discharge inlet and a second discharge outlet, the second discharge inlet having a larger sectional area than the first discharge inlet, wherein the discharge outlet of at least one of the first discharge port or the second discharge port has a larger sectional area than the discharge inlet thereof.2. The compressor of claim 1 , wherein the first discharge outlet has a larger sectional area than the first discharge inlet claim 1 , and the second discharge outlet has a larger sectional area than the second discharge inlet.3. The compressor of claim 1 , wherein the first discharge inlet and the first discharge outlet have ...

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Номер записи: 63
31-05-2018 дата публикации

Compressor Having Capacity Modulation Assembly

Номер: US20180149155A1
Автор: Akei Masao, DOEPKER Roy J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, first and second scrolls, a seal assembly, a modulation control chamber, and a modulation control valve. The first scroll may include a first end plate having a biasing passage extending therethrough. The seal assembly may isolate a discharge pressure region from a suction pressure region. The seal assembly and the first scroll may define an axial biasing chamber therebetween that communicates with the axial biasing chamber and a first pocket between the first and second scrolls. The modulation control chamber may be fluidly coupled with the biasing chamber by a first passage. The modulation control valve may be fluidly coupled with the modulation control chamber by a second passage and movable between a first position allowing communication between the second passage and the suction pressure region and a second position restricting communication between the second passage and the suction pressure region. 1. A compressor comprising:a shell assembly defining a suction-pressure region and a discharge-pressure region, said shell assembly including a partition separating said suction-pressure region from said discharge-pressure region;a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a modulation port, and a first spiral wrap extending from said first end plate;a second scroll member disposed within said shell assembly and including a second end plate having a second spiral wrap extending therefrom, said first and second spiral wraps meshingly engaged and forming a series of pockets during orbital displacement of said second scroll member relative to said first scroll member, said modulation port in communication with a first one of said pockets;a floating seal assembly engaged with said partition and isolating said discharge-pressure region from said suction-pressure region, said floating seal assembly defining an axial biasing chamber containing intermediate-pressure ...

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Номер записи: 64
09-06-2016 дата публикации

SCROLL TYPE FLUID MACHINE

Номер: US20160160646A1
Автор: Taguchi Masanori
Принадлежит:

To provide a scroll type fluid machine including a rotation stopping mechanism that can reduce noise released to the outside of the scroll type fluid machine by damping vibration transmitted from a movable scroll to a casing. In a scroll type fluid machine () including a rotation stopping mechanism () for stopping rotation of a movable scroll without hindering revolving motion of the movable scroll () relative to a fixed scroll () fixed to a casing (), the rotation stopping mechanism includes: a support hole () drilled in either one of a base plate () of the movable scroll and a pedestal part () of the casing; a rotation stopping pin () that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part; a restriction hole () that is drilled in the other of the base plate and the pedestal part, and is loosely fitted with the rotation stopping pin; and a buffer member () interposed, at least in the support hole out of the support hole and the restriction hole, between the support hole and the rotation stopping pin. 1. A scroll type fluid machine provided with a rotation stopping mechanism for stopping rotation of a movable scroll without hindering revolving movement of the movable scroll relative to a fixed scroll fixed to a casing , wherein the rotation stopping mechanism comprises:a support hole that is drilled in either one of a base plate on which a spiral wall of the movable scroll is uprightly installed, and a pedestal part of the casing, which is positioned opposed to the base plate;a rotation stopping pin that is fitted into the support hole, and is protruded to the side of the other of the base plate and the pedestal part;a restriction hole that is drilled in the other of the base plate and the pedestal part, and is loosely fitted with the rotation stopping pin; anda buffer member interposed, at least in the support hole out of the support hole and the restriction hole, between the support hole and the ...

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Номер записи: 65
09-06-2016 дата публикации

Capacity Modulated Scroll Compressor

Номер: US20160160860A1
Автор: PEREVOZCHIKOV Michael M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A system includes a compressor. The compressor includes an orbiting scroll member having a first end plate and a first spiral wrap. A non-orbiting scroll member has a second end plate and a second spiral wrap, and the second spiral wrap forms a meshing engagement with the first spiral wrap to create a plurality of compression chambers between a suction port and a discharge port of the orbiting scroll member and the non-orbiting scroll member. A first port is in communication with a first of the plurality of compression chambers and selectively injects an injection fluid into the first of the plurality of compression chambers to increase a compressor capacity and selectively leaks a first compressed fluid from the first of the plurality of compression chambers to reduce the compressor capacity. A second port in communication with a second of the plurality of compression chambers and selectively leaking a second compressed fluid from the second of the plurality of compression chambers to reduce a compressor capacity. 1. A system including a compressor , the compressor comprising:an orbiting scroll member having a first end plate and a first spiral wrap;a non-orbiting scroll member having a second end plate and a second spiral wrap, wherein the second spiral wrap forms a meshing engagement with the first spiral wrap to create a plurality of compression chambers between a suction port and a discharge port of the orbiting scroll member and the non-orbiting scroll member;a first port in communication with a first of the plurality of compression chambers and selectively injecting an injection fluid into the first of the plurality of compression chambers to increase a compressor capacity and selectively leaking a first compressed fluid from the first of the plurality of compression chambers to reduce the compressor capacity; anda second port in communication with a second of the plurality of compression chambers and selectively leaking a second compressed fluid from the ...

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Номер записи: 66
22-09-2022 дата публикации

Vapor injection device and compressor

Номер: US20220299026A1
Автор: Aijun Liu, Ao ZOU, Tao Ding, Xiangji Chen
Принадлежит: Nanjing Aotecar New Energy Technology Co ltd, NANJING AOTECAR XIANGYUN REFRIGERATOR Co Ltd

Provided are a vapor injection device and a compressor. The vapor injection device includes an injector valve plate, an injector plate, and an injector reed valve. One side of the injector plate facing toward the injector valve plate is provided with an avoidance groove. A guide post is disposed protruding from one side of the injector plate facing away from the injector valve plate. The guide post is inserted into a fixed scroll of the compressor and provided with an injection channel. A vapor injection inlet cavity is formed between the rear housing, the injector valve plate, and the fixed scroll. The injector reed valve is disposed between the injector valve plate and the injector plate and attaches to the injector valve plate, the injector reed valve is provided with a movable sheet, and the movable sheet, the injector valve plate and the avoidance groove form a one-way valve structure.

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Номер записи: 67
22-09-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220299028A1
Автор: Tanaka Kouji, YOSUKE Yoshinobu
Принадлежит:

A scroll compressor includes a fixed scroll and a movable scroll. The fixed-side wrap extends, from a main surface of the fixed-side end plate, along a first direction with a fixed-side dimension set in advance. The movable-side wrap extends, from a main surface of the movable-side end plate, along the first direction with a movable-side dimension set in advance. The fixed and movable side dimensions are set such that a fixed-side first region receives a force that presses the movable scroll against the fixed scroll when the movable scroll is inclined with respect to the fixed scroll. The fixed-side first region includes a distal end surface of a part between 0.0 and 0.5 turns from a fixed-side reference point set in advance and located on an outermost periphery of the fixed-side wrap, and a distal end surface of a part between 1.0 and 1.5 turns from the fixed-side reference point. 1. A scroll compressor comprising:a fixed scroll including a fixed-side end plate and a fixed-side wrap; anda movable scroll including a movable-side end plate and a movable-side wrap,the fixed-side wrap extending, from a main surface of the fixed-side end plate, along a first direction with a fixed-side dimension set in advance,the movable-side wrap extending, from a main surface of the movable-side end plate, along the first direction with a movable-side dimension set in advance, the main surface of the movable-side end plate facing the main surface of the fixed-side end plate, a first compression chamber surrounded by an inner peripheral surface of the fixed-side wrap and an outer peripheral surface of the movable-side wrap and', 'a second compression chamber surrounded by an outer peripheral surface of the fixed-side wrap and an inner peripheral surface of the movable-side wrap,, 'the fixed scroll and the movable scroll forming'}the fixed-side dimension and the movable-side dimension being set such that a fixed-side first region included in a distal end surface of the fixed-side wrap ...

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Номер записи: 68
08-06-2017 дата публикации

SCROLL COMPRESSOR

Номер: US20170159658A1
Автор: OHTA Masahiro, Takeuchi Makoto, WATANABE Kazuhide
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

A scroll compressor, includes: a scroll compression mechanism including an orbiting scroll, a fixed scroll, and a thrust plate supporting a load of the orbiting scroll in a thrust direction; a back-pressure application mechanism that applies, as back pressure, the refrigerant gas compressed by the scroll compression mechanism to a rear surface of the thrust plate; and a floating amount restriction mechanism that restricts an amount of floating of the thrust plate caused by the back pressure. The floating amount restriction mechanism includes a restriction pin that includes a shaft part and a head part, and locks the thrust plate to the head part to restrict the amount of floating. The shaft part passes through the thrust plate and has a front end part fixed to a front housing, and the head part has a diameter larger than a diameter of the shaft part. 16.-. (canceled)7. A scroll compressor , comprising:a scroll compression mechanism including an orbiting scroll, a fixed scroll, and a thrust plate, the fixed scroll facing the orbiting scroll to form a compression chamber, the compression chamber compressing refrigerant gas, and the thrust plate supporting a load of the orbiting scroll in a thrust direction;a back-pressure application mechanism that applies, as back pressure, the refrigerant gas compressed by the scroll compression mechanism to a rear surface of the thrust plate;a floating amount restriction mechanism that restricts an amount of floating of the thrust plate caused by the back pressure; anda housing that houses the scroll compression mechanism, the back-pressure application mechanism, and the floating amount restriction mechanism, whereinthe floating amount restriction mechanism includes a restriction pin that includes a shaft part and a head part and locks the thrust plate to the head part to restrict the amount of floating, the shaft part penetrating through the thrust plate and having a front end part fixed to the housing, and the head part being ...

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Номер записи: 69
14-05-2020 дата публикации

SCROLL TYPE MICRO-COMPRESSOR, AND METHOD FOR MACHINING FIXED SCROLL PLATE AND ORBIT SCROLL PLATE THEREOF

Номер: US20200149530A1
Автор: XING Xiaoxing, YU Duli, ZHANG Chaomin
Принадлежит:

The embodiments of the present disclosure disclose a scroll type micro-compressor, and a method for machining a fixed scroll plate and an orbit scroll plate thereof. The scroll type micro-compressor comprises a fixed scroll plate and an orbit scroll plate each integrally made with a monocrystalline silicon substrate; the compressor device has an Oldham ring structure, and reduces a mass of the orbit scroll plate by optimizing a design of a substrate of the orbit scroll plate; a cross-sectional shape of a plurality of micropores provided on a lower surface of the fixed scroll plate is set as of a fan ring, in which an electrode material is accommodated to maintain an electric field uniformity and reduce an electric field loss; and hydrophilia of inner surfaces is changed to prevent a top leakage and facilitate capillary filling of a compression chamber. 1. A scroll type micro-compressor , comprising:a fixed scroll plate and an orbit scroll plate, each integrally made with a monocrystalline silicon substrate; a fixed scroll plate substrate;', 'a fixed scroll wall integrally formed on an upper surface of the fixed scroll plate substrate; and', 'an annular shell integrally formed on the upper surface of the fixed scroll plate substrate and located outside the fixed scroll wall, wherein a side of the annular shell is provided with an inlet, and an upper surface of the annular shell is provided with a pair of cylindrical keyways radially and symmetrically distributed with respect to the fixed scroll wall;, 'wherein the fixed scroll plate further compriseswherein a plurality of micropores uniformly distributed along the fixed scroll wall are provided to extend from a lower surface of the fixed scroll plate substrate into the fixed scroll wall through the fixed scroll plate substrate, the micropores being filled with electrode materials connected by wires to pads provided respectively on the lower surface of the fixed scroll plate substrate and close to edges of the fixed ...

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Номер записи: 70
14-05-2020 дата публикации

Compressor With Fluid Cavity For Cooling

Номер: US20200149793A1
Автор: IGNATIEV Kirill M., PEREVOZCHIKOV Michael M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell, a first scroll, and a second scroll. The shell may include a first inlet, a second inlet, and an outlet. The first scroll may include a first end plate and a first spiral wrap. The second scroll may include a second end plate and a second spiral wrap, the first and second spiral wraps cooperating to define a series of moving compression pockets therebetween. The moving compression pockets decrease in volume as the moving compression pockets move from a radially outer position to a radially inner position. The moving compression pockets may receive working fluid from the first inlet at the radially outer position and provide working fluid to the outlet at the radially inner position. The second end plate may include a fluid cavity receiving working fluid from the second inlet and fluidly isolated from working fluid within the moving compression pockets. 1. A compressor comprising:a shell including a first inlet, a second inlet, and an outlet;a first scroll including a first end plate and a first spiral wrap; anda second scroll including a second end plate and a second spiral wrap, the first and second spiral wraps cooperating to define a series of moving compression pockets therebetween, the moving compression pockets decrease in volume as the moving compression pockets move from a radially outer position to a radially inner position, the moving compression pockets receiving working fluid from the first inlet at the radially outer position and providing working fluid to the outlet at the radially inner position, the second end plate including a fluid cavity receiving working fluid from the second inlet and fluidly isolated from working fluid within the moving compression pockets, the shell defines a discharge chamber and a suction chamber, wherein the first and second scrolls are disposed within the suction chamber,', 'the moving compression pockets at the radially outer position are in fluid communication with the suction chamber,', ...

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Номер записи: 71
18-06-2015 дата публикации

SCROLL COMPRESSOR

Номер: US20150167672A1
Автор: Holbrook Alan Ernest Kinnaird, Stones Ian David
Принадлежит:

The present invention relates to a scroll compressor comprising a scroll pumping arrangement comprising two scrolls each having a scroll wall with inner and outer scroll wall surfaces which co-operate with respective outer and inner scroll wall surfaces of the other scroll wall providing two pairs of co-operating surfaces which, on relative orbiting motion of the scrolls, pump fluid from an inlet to an outlet of the arrangement, the scroll walls having a respective plurality of wraps I, II, III, IV, V between the inlet and the outlet and wherein the co-operating scroll wall surfaces of one of said pairs of at least one wrap are generally circular. 1. A scroll compressor comprising:a scroll pumping arrangement comprising two scrolls, each scroll of the two scrolls including a respective scroll wall including a respective inner scroll wall surface and a respective outer scroll wall surface which co-operate with respective outer and inner scroll wall surfaces of the other scroll wall providing two pairs of co-operating scroll wall surfaces which, on relative orbiting motion of the scrolls, pump fluid from an inlet to an outlet of the arrangement, wherein each scroll wall of the respective scroll walls includes a respective plurality of wraps between the inlet and the outlet, and wherein the co-operating scroll wall surfaces of one pair of the two pairs of co-operating scroll wall surfaces of at least one wrap are generally circular.2. The scroll compressor of claim 1 , wherein the respective scroll walls have an outer wrap adjacent the inlet and wherein the co-operating scroll wall surfaces of one pair of the two pairs of co-operating scroll wall surfaces of the outer wrap are circular.3. The scroll compressor of claim 2 , wherein the respective scrolls comprise a fixed scroll wall and an orbiting scroll wall which is configured to move relative to the fixed scroll wall for pumping fluid from the inlet to the outlet claim 2 , and wherein a radially inner co-operating ...

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Номер записи: 72
15-06-2017 дата публикации

SCROLL TYPE FLUID MACHINE, METHOD AND DEVICE FOR FORMING ELASTIC COATING THEREON

Номер: US20170167486A1
Автор: ASAMI Junichi, Sato Toru
Принадлежит:

A coating solution that contains 10 to 20% by weight of epoxy resin serving as a thermosetting resin, 20 to 30% by weight of MoS, and 5 to 10% by weight of graphite, with a remainder thereof constituted by an organic solvent, is sprayed onto a wrap portion side face of an orbiting scroll from a spray nozzle. While spraying the coating solution, the orbiting scroll is rotated on a rotating table and the spray nozzle is moved along a rectilinear movement path toward a radial direction outer side of the orbiting scroll while maintaining an attitude thereof from the start of the spraying process. After applying the coating solution, the coating solution is dried by baking, whereupon a break-in operation is performed. As a result, an elastic coating is formed at a coating thickness that enables elastic deformation in accordance with a clearance between the wrap portion side faces. 1. A device for forming an elastic coating on a scroll type fluid machine , in which an elastic coating is formed on a side face of a spiral wrap portion , the elastic coating is obtained by dispersing a powdered solid lubricant in a synthetic resin that possesses elasticity and is more flexible than a scroll base material constituting the wrap portion , and is formed at a coating thickness that enables elastic deformation relative to an opposing wrap portion side face of another scroll during an operation while ensuring that a clearance is not generated between the wrap portion side faces is formed on a side face of a spiral wrap portion , the device comprising:a rotation device that includes a rotating table on which a scroll constituted by the wrap portion and an end plate is placed fixedly and a driving device for driving the rotating table, and that rotates the scroll placed fixedly on the rotating table about a spiral center of the wrap portion;a coating solution spraying device having a spray nozzle for spraying a coating solution obtained by dissolving constituent components of the ...

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Номер записи: 73
15-06-2017 дата публикации

SCROLL COMPRESSOR

Номер: US20170167490A1
Автор: Hagita Takayuki, Hamasaki Masafumi
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

This scroll compressor is a scroll compressor provided with a housing and a scroll compression mechanism provided inside the housing, the interior of the housing being provided with an discharge cavity for discharge high-pressure gas compressed by the scroll compression mechanism, wherein: the housing is configured from a front housing and a rear housing for closing the rear-end opening of the front housing; a fixed scroll is integrally molded on the rear housing with a rib part interposed therebetween; the discharge cavity, into which an discharge port for discharging high-pressure gas opens, is provided around the periphery of the rib part; and an discharge valve for opening and closing the discharge port is installed in the discharge cavity. 1. A scroll compressor comprising: a housing; and a scroll compression mechanism which is accommodated and installed inside the housing ,wherein an discharge cavity for discharging a high-pressure gas compressed by the scroll compression mechanism is formed inside the housing,wherein the housing is configured of a front housing and a rear housing which closes a rear-end opening of the front housing,wherein a fixed scroll configuring the scroll compression mechanism is integrally molded on the rear housing via a rib part, andwherein an discharge cavity to which an discharge port for discharging the high-pressure gas opens is provided around the rib part, and an discharge valve for opening and closing the discharge port is provided inside the discharge cavity.2. The scroll compressor according to claim 1 ,wherein the discharge cavity is separated from an intake cavity side by a first seal member which is interposed between an end-plate outer periphery of the fixed scroll and an inner periphery of the front housing, and the discharge cavity is separated from the atmosphere side by a second seal member which is interposed between the rear housing and the rear-end opening of the front housing, or a welding structure which is ...

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Номер записи: 74
30-05-2019 дата публикации

CO-ROTATING SCROLL COMPRESSOR AND METHOD FOR DESIGNING THE SAME

Номер: US20190162184A1
Автор: Hirata Hirofumi, Ito Takahide, KITAGUCHI Keita, Takeuchi Makoto, Yamashita Takuma
Принадлежит:

A co-rotating scroll compressor includes a driving-side scroll member (), a driven-side scroll member (), a pin ring mechanism (), a driving-side bearing () that rotatably supports the driving-side scroll member (), and a driven-side bearing () that rotatably supports the driven-side scroll member (). A center of gravity of at least one of the driving shaft (), the driving-side scroll member (), and the driven-side scroll member () is shifted from rotation centers (CL CL) by a predetermined distance. The predetermined distance is set so that a total bearing load obtained by centrifugal force and fluid compression that is 5% of a dynamic load rating of the driving-side bearing () and the driven-side bearing () or more is generated. 1. A co-rotating scroll compressor , comprising:a driving shaft driven by a drive unit so as to rotate;a driving-side scroll member connected to the driving shaft, and comprising a plurality of spiral driving-side walls provided about a center of a driving-side end plate at predetermined angular intervals;a driven-side scroll member comprising spiral driven-side walls, the driven-side walls being provided about a center of a driven-side end plate at predetermined angular intervals and in a number corresponding to the driving-side walls, the driven-side walls being engaged with the corresponding driving-side walls so as to form a compression space;a synchronous driving mechanism that transmits driving force from the driving-side scroll member to the driven-side scroll member so that the driving-side scroll member and the driven-side scroll member rotationally move in a same direction at a same angular velocity;a driving-side bearing that rotatably supports the driving-side scroll member; anda driven-side bearing that rotatably supports the driven-side scroll member, wherein:a center of gravity of at least one of the driving shaft, the driving-side scroll member, or the driven-side scroll member is shifted from a rotation center by a ...

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Номер записи: 75
23-06-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160177953A1
Автор: Sun Qingfeng
Принадлежит: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD.

The present invention relates to a scroll compressor (). The scroll compressor comprises a shell (); a fixed scroll component () and a moving scroll component () arranged in the shell, wherein the fixed scroll component is fixed relative to the shell, and the moving scroll component can float in the axial direction relative to the fixed scroll component; a main bearing base () is arranged in the shell to support the moving scroll component, a back pressure cavity (B) is formed between the moving scroll component and the main bearing base and communicated with fluid of a compression cavity (C) through a communication channel (), the communication channel () is formed in the moving scroll component, and the compression cavity (C) is formed between the fixed scroll component and the moving scroll component; and valve components (A) arranged in the communication channel () are formed to respond the pressure difference between the compression cavity and the back pressure cavity so as to provide a first aperture and a second aperture, and the second aperture is smaller than the first aperture. 1. A scroll compressor , comprising:a shell;a fixed scroll component and a moving scroll component provided in the shell, wherein the fixed scroll component is arranged to be fixed relative to the shell, and the moving scroll component is arranged to be floatable in an axial direction relative to the fixed scroll component;a main bearing housing provided in the shell to support the moving scroll component, wherein a back pressure cavity is formed between the moving scroll component and the main bearing housing, and the back pressure cavity is in fluid communication with a compression pocket formed between the fixed scroll component and the moving scroll component via a communication passage formed in the moving scroll component;wherein the scroll compressor further comprises a valve component provided in the communication passage, the valve component is configured to provide a first ...

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Номер записи: 76
18-09-2014 дата публикации

SCROLL COMPRESSOR WITH BACK PRESSURE DISCHARGE

Номер: US20140271306A1
Автор: Jin Honggyun, KIM Suchul, PARK Kiwon, YUN Juhwan
Принадлежит:

A scroll compressor having a back pressure discharge is provided. The scroll compressor may include a casing, a discharge cover, a main frame, a first scroll supported by the main frame, and a second scroll forming at least a discharge chamber together with the first scroll. The second scroll may include a discharge opening through which an operation fluid may be discharged. The scroll compressor may also include a back pressure chamber assembly fastened to the second scroll with a Efastener, a back pressure discharge opening that communicates with the back pressure chamber, and a discharge path by which the discharge chamber and the discharge space communicate with each other. The scroll compressor may further include a check valve disposed at the back pressure discharge opening to prevent the operation fluid from being introduced into the back pressure chamber. 1. A scroll compressor , comprising:a casing;a discharge cover, the discharge cover dividing an inner surface of the casing into a suction space and a discharge space;a main frame, the main frame being formed spaced apart from the discharge cover;a first scroll supported by the main frame, the first scroll being configured to perform an orbital motion with respect to a rotational shaft thereof in operation;a second scroll that forms a suction chamber, an intermediate pressure chamber, and a discharge chamber together with the first scroll, the second scroll being movable with respect to the first scroll and the second scroll comprising a discharge opening through which an operation fluid is discharged;a back pressure chamber assembly coupled to the second scroll, the back pressure chamber assembly comprising a back pressure plate having a back pressure chamber and a floating plate movably disposed in the back pressure chamber, the back pressure chamber assembly being configured to press the second scroll toward the first scroll, the back pressure chamber assembly further comprising a back pressure discharge ...

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Номер записи: 77
09-07-2015 дата публикации

MOTOR-DRIVEN COMPRESSOR

Номер: US20150192127A1
Автор: Fukutani Yoshikazu, NAGANO Hiroki, SUITOU Ken
Принадлежит: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI

A motor-driven compressor includes suction, discharge, and intermediate pressure housings. The accommodation housing includes a compression mechanism, which compresses refrigerant, and injection ports, which deliver intermediate pressure refrigerant to the compression mechanism from an external refrigerant circuit. The compressed refrigerant is discharged into the discharge housing. The intermediate pressure housing includes an intake port, which draws in the intermediate pressure refrigerant, an accommodation recess, which is connected to the intake port, and supply passages, which connect the accommodating recess to the injection ports. The accommodation recess accommodates the valve mechanism. The valve mechanism includes a valve plate, which has a valve hole that connects the intake port and the supply passages, and a reed valve formation plate including a reed valve, located between the valve plate and the supply passages, to open and close the valve hole. 1. A motor-driven compressor comprising:an electric motor;a compression mechanism including a compression chamber and configured to compress refrigerant drawn into the compression chamber when the electric motor rotates;an accommodation housing configured to accommodate the compression mechanism;a discharge housing including a discharge chamber into which compressed refrigerant is discharged from the compression chamber;a plurality of injection ports arranged in the accommodation housing and configured to deliver intermediate pressure refrigerant, which has an intermediate pressure that is higher than a suction pressure of the refrigerant drawn into the accommodation housing and lower than a discharge pressure of the refrigerant discharged into the discharge chamber, from an external refrigerant circuit to the compression chamber when compression is performed in the compression chamber; an intake port configured to draw in the intermediate pressure refrigerant from the external refrigerant circuit,', 'an ...

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Номер записи: 78
11-06-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200182244A1
Автор: MIZUSHIMA Yasuo, MURAKAMI Yasuhiro, NAKAI Ryouta, NORO Masahiro
Принадлежит:

A scroll compressor includes fixed and orbiting scrolls, and satisfies at least one of a first condition and a second condition. In the first condition, a first gap between a distal end of the first wrap and the second base changes heading from an outer peripheral side of the first wrap to an inner peripheral side. In the second condition, a second gap between a distal end of the second wrap and the first base changes heading from an outer peripheral side of the second wrap to an inner peripheral side. A rate of change in the first gap in one area is greater than a rate of change in the first gap in another area. A rate of change in the second gap in one area is greater than a rate of change in the second gap in another area. 1. A scroll compressor comprising:a fixed scroll having a first base and a first wrap with a spiral shape formed on the first base; andan orbiting scroll that forms a compression chamber together with the fixed scroll, the orbiting scroll having a second base and a second wrap with a spiral shape formed on the second base, [ a first gap between a distal end of the first wrap and the second base changes heading from an outer peripheral side of the first wrap to an inner peripheral side and', 'a rate of change in the first gap from a center of the first wrap to an intermediate point of the first wrap is greater than a rate of change in the first gap from the intermediate point of the first wrap to an outer peripheral end of the first wrap and, 'a first condition in which'}, a second gap between a distal end of the second wrap and the first base changes heading from an outer peripheral side of the second wrap to an inner peripheral side and', 'a rate of change in the second gap from a center of the second wrap to an intermediate point of the second wrap is greater than a rate of change in the second gap from the intermediate point of the second wrap to an outer peripheral end of the second wrap., 'a second condition in which'}], 'the scroll ...

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Номер записи: 79
14-07-2016 дата публикации

SCROLL COMPRESSOR AND AIR CONDITIONER INCLUDING A SCROLL COMPRESSOR

Номер: US20160201669A1
Автор: Chung Baikyoung, Kim Beomchan, Kim Byeongsu, Ko Younghwan, Ryu Byoungjin
Принадлежит:

A scroll compressor and an air conditioner including a scroll compressor are provided. The scroll compressor may include a main frame configured to support an upper portion of a rotating shaft; a fixed scroll coupled to the main frame and having a first wrap; an orbiting scroll provided to perform an orbiting motion with respect to the fixed scroll and having a second wrap which forms a plurality of compressions chamber between the first wrap and the second wrap; a suction port configured to enable a first refrigerant to be suctioned into the compression chamber; a first introduction port provided at a first side of the fixed scroll and configured to inject the first refrigerant into the plurality of compression chambers; a second introduction port provided at a second side of the fixed scroll and configured to inject a second refrigerant having a pressure different from a pressure of the first refrigerant into the plurality of compression chambers; and a third introduction port provided at a third side of the fixed scroll and configured to inject a third refrigerant having a pressure different from the pressure of the first refrigerant and the second refrigerant into the compression chamber. The first introduction port may be provided at a position at which injecting of the refrigerant through the first introduction port is able to be performed before suctioning of the refrigerant through the suction port is completed. 1. An scroll compressor , comprising:a motor configured to generate a drive force;a rotatable shaft configured to rotatably pass through the motor;a main frame configured to support an upper portion of the rotating shaft;a fixed scroll coupled to the main frame and having a first wrap;an orbiting scroll that performs an orbiting motion with respect to the fixed scroll and having a second wrap that forms a plurality of compression chambers between the first wrap and the second wrap;a suction port configured to enable a first refrigerant to be ...

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Номер записи: 80
14-07-2016 дата публикации

Angular Synchronization of Stationary and Orbiting Plate Scroll Blades in a Scroll Pump Using a Metallic Bellows

Номер: US20160201670A1
Автор: Calhoun John, GALICA George, Lu Vannie (Yucong), PIERCE James
Принадлежит:

Parts of a pump head of a scroll pump facilitate an assembly process in which the stationary and orbiting scroll blades of the pump are angularly aligned or synchronized with one another. A metallic bellows of the pump head provides a primary means of synchronizing the stationary and orbiting scroll blades. The assembly process may be carried out using a fixture configured to be mountable to an assemblage including the bellows and the orbiting plate scroll. The fixture has a reference feature, and the orbiting plate scroll or the frame has another reference feature that can be aligned with the reference feature of the fixture, in the circumferential direction of the bellows, during the course of the assembly process. 1. A method of assembling parts of a pump head of a scroll pump , the method comprising:placing a first end of a metallic bellows against a back surface of a plate of an orbiting plate scroll having an orbiting scroll blade protruding from a front surface of the plate, and fixing the metallic bellows at its first end to the orbiting plate scroll,wherein the fixing of the metallic bellows to the orbiting plate scroll comprises inserting fasteners into the plate of the orbiting plate scroll from the back surface of the plate;placing a second end of the metallic bellows against an inner surface of a frame;performing an angular alignment process comprising establishing a predetermined angular alignment between the frame and the orbiting plate scroll;subsequently fixing the bellows, at a second end thereof, to the frame,wherein the fixing of the metallic bellows to the frame comprises inserting fasteners into the frame from an outer surface of the frame opposite the inner surface; andsubsequently fixing a stationary plate scroll, having a stationary scroll blade, to the frame in a predetermined angular alignment with the frame and such that the stationary scroll blade faces the orbiting scroll blade in a radial direction,wherein the angular alignment process ...

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Номер записи: 81
13-07-2017 дата публикации

Compressor cooling system

Номер: US20170198696A1
Автор: Kirill M. Ignatiev, Michael M. Perevozchikov, Robert C. Stover
Принадлежит: Emerson Climate Technologies Inc

A system may include a compressor including a compression mechanism having first and second compression members defining a compression pocket disposed between the first and second compression members that decreases in volume during operation of the compression mechanism. A heat exchanger receives compressed working fluid from the compressor. An expansion device may be disposed downstream of the heat exchanger. A lubricant separator receives lubricant and working fluid discharged from the compression mechanism and provides separated lubricant to the compression mechanism. A lubricant-injection flow path may include a lubricant fitting and extends between the lubricant separator and the compression pocket such that separated lubricant is injected into the compression pocket through the lubricant fitting.

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Номер записи: 82
21-07-2016 дата публикации

SCROLL COMPRESSOR

Номер: US20160208800A1
Автор: Tsuka Yoshitomo
Принадлежит:

A scroll compressor includes fixed and movable scrolls and a crank shaft coupled to the movable scroll. The fixed and movable wraps are engaged to form a compression chamber. A refrigerant compressed in the compression chamber is discharged from a discharge port open at a central portion of the fixed end plate. The compression chamber is divided into first and second compression chambers facing outer and inner circumferential surfaces of the movable wrap. One of the end plates is provided with a communication groove recessed at a portion near a wrapping start position of the wrap. The communication groove connects the first compression chamber and the discharge port before the outer circumferential surface of the movable wrap, which is eccentrically rotating while sliding on an inner circumferential surface of the fixed wrap, separates from the inner circumferential surface of the fixed wrap. 1. A scroll compressor , comprising:a fixed scroll having a fixed end plate with a spirally-extending fixed wrap positioned upright on the fixed end plate;a movable scroll having a movable end plate with a spirally-extending movable wrap positioned upright on the movable end plate; anda crank shaft coupled to a back surface side of the movable scroll,the fixed wrap and the movable wrap being engaged with each other to form a compression chamber therebetween,the crank shaft being driven to rotate to have the movable scroll rotate eccentrically with respect to the fixed scroll and discharge a refrigerant compressed in the compression chamber from a discharge port open at a central portion of the fixed end plate,the compression chamber being divided into a first compression chamber facing an outer circumferential surface of the movable wrap, and a second compression chamber facing an inner circumferential surface of the movable wrap,one of the fixed end plate and the movable end plate being provided with a communication groove recessed at a portion near a wrapping start position ...

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Номер записи: 83
19-07-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180202440A1
Автор: LEE Donggeun
Принадлежит:

A scroll compressor is provided that may include a casing, a drive motor, a rotational shaft, a frame provided at a lower side of the drive motor, a first scroll provided at a lower side of the frame, a second scroll provided between the frame and the first scroll and including a compression chamber provided between the first scroll and the second scroll, and a first check valve provided at an exit end of the discharge port to prevent refrigerant discharged to the inner space of the casing from flowing back to the compression chamber. A communication path may be provided at the exit end of the discharge port to communicate the inner space of the casing with the compression chamber when the first check valve is closed to cause refrigerant to flow back to the compression chamber, enabling a quick flat pressure state to be made. 1. A scroll compressor , comprising:a casing;a drive motor provided in an inner space of the casing;a rotational shaft coupled to the drive motor;a frame provided adjacent to the drive motor;a first scroll provided adjacent to the frame and including a first wrap at one side of a first plate and a discharge port at an inner end of the first wrap;a second scroll provided between the frame and the first scroll and including a second wrap engaged with the first wrap at one side of a second plate to which the rotational shaft is eccentrically coupled to be overlapped in a radial direction, and a compression chamber formed between the first scroll and the second scroll, while the second scroll performs an orbiting motion with respect to the first scroll; anda first check valve provided at an exit end of the discharge port and configured to block a backflow of refrigerant discharged to the inner space of the casing to the compression chamber, wherein a recess is provided at the exit end of the discharge port to communicate the inner space of the casing with the compression chamber in a state in which the first check valve is closed.2. The compressor ...

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Номер записи: 84
19-07-2018 дата публикации

Scroll-Type Fluid Machine

Номер: US20180202441A1
Автор: IWANO Kiminori, KOBAYASHI Yoshio, Sakamoto Susumu, WATANABE Sho
Принадлежит:

The present invention makes a lap clearance between a fixed scroll and an turning scroll as small as possible to suppress leakage of compressed fluid from a compression chamber in a compression operation, thereby improving a compression efficiency. Provided is a scroll-type fluid machine characterized by comprising: a fixed scroll having a scroll lap portion; and an orbiting scroll that is provided to face the fixed scroll and that has a scroll lap portion turning so as to form a plurality of compression chambers in a clearance relative to the lap portion of the fixed scroll, wherein the lap portion of at least one of the fixed scroll and the turning scroll is provided with, in a predetermined region, a recessed portion on one lateral surface thereof and a protruding portion on the other lateral surface thereof. 1. A scroll-type fluid machine comprising:a fixed scroll including a spiral-shaped lap part; andan orbiting scroll which is provided facing the fixed scroll and which includes a spiral-shaped lap part orbiting to form a plurality of compression chambers between the lap part of the fixed scroll and the lap part of the orbiting scroll, whereinthe lap part of at least one of the fixed scroll and the orbiting scroll includes a concave portion provided in one lateral surface in a predetermined region and includes a convex portion provided on the other lateral surface.2. The scroll-type fluid machine according to claim 1 , wherein the concave portion or the convex portion is formed only in a portion in a height direction of the lap part of the fixed scroll or the orbiting scroll.3. The scroll-type fluid machine according to claim 1 , wherein the lap part of at least one of the fixed scroll and the orbiting scroll includes a concave portion and a convex portion provided in one lateral surface between a tooth bottom and a tooth tip in a predetermined region.4. The scroll-type fluid machine according to claim 1 , wherein the convex portion or the concave portion is ...

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Номер записи: 85
26-07-2018 дата публикации

VARIABLE DISPLACEMENT SCROLL COMPRESSOR

Номер: US20180209421A1
Автор: Betthauser Torin Allan, KIMBALL Adam P., Mlsna Eric S., SMERUD Scott J.
Принадлежит:

A scroll compressor is disclosed. The scroll compressor includes a compressor housing; an orbiting scroll member disposed within the housing; a non-orbiting scroll member disposed within the housing, wherein the orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the housing; and an endplate secured to the non-orbiting scroll member. The endplate includes a check valve surface configured to provide a stop for a check valve of the scroll compressor, a radial sealing surface configured to receive a radial seal, an unloading mechanism surface configured to provide a stop for an unloading mechanism, and a pressure chamber for controlling the unloading mechanism, the endplate also including an aperture that fluidly connects the compression chamber and a discharge chamber of the scroll compressor. 1. A scroll compressor , comprising:a compressor housing;an orbiting scroll member disposed within the housing;a non-orbiting scroll member disposed within the housing, wherein the orbiting scroll member and the non-orbiting scroll member are intermeshed thereby forming a compression chamber within the housing; andan endplate secured to the non-orbiting scroll member, the endplate including a check valve surface configured to provide a stop for a check valve of the scroll compressor, a radial sealing surface configured to receive a radial seal, an unloading mechanism surface configured to provide a stop for an unloading mechanism, and a pressure chamber for controlling the unloading mechanism, the endplate also including an aperture that fluidly connects the compression chamber and a discharge chamber of the scroll compressor.2. The scroll compressor according to claim 1 , wherein the endplate is a single member claim 1 , formed of a unitary claim 1 , one-piece construction.3. The scroll compressor according to claim 1 , wherein the unloading mechanism includes a flow enabled state and a flow disabled state.4. ...

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Номер записи: 86
04-08-2016 дата публикации

SCROLL-TYPE COMPRESSOR

Номер: US20160222965A1
Автор: Higashiyama Masashi, Ohno Yuichi, Uchida Kazuhide
Принадлежит:

A scroll-type compressor includes: a movable scroll including a low-stage movable tooth portion having a spiral shape and protruding from a first side of a movable substrate portion in an axial direction, and a high-stage movable tooth portion having a spiral shape and protruding from a second side of the movable substrate portion in the axial direction; and a shaft arranged to extend through the movable substrate portion and causing the movable scroll to undergo revolution motion. A low-stage compression mechanism and a high-stage movable compression mechanism are provided on opposite sides of the movable substrate portion in the axial direction. The numbers of curling of the low-stage movable tooth portion and the high-stage movable tooth portion are set to be one. 1. A scroll-type compressor comprising:a rotation shaft rotating by receiving a drive force from a rotational drive source;a movable scroll revolving by a rotational drive force transmitted from the rotation shaft, the movable scroll including a movable substrate portion having a flat-plate shape, a low-stage movable tooth portion having a spiral shape and protruding from the movable substrate portion to a first side in an axial direction of the rotation shaft, and a high-stage movable tooth portion having a spiral shape and protruding from the movable substrate portion to a second side in the axial direction of the rotation shaft;a low-stage fixed scroll including a low-stage substrate portion having a flat-plate shape, and a low-stage fixed tooth portion having a spiral shape, protruding from the low-stage substrate portion in the axial direction of the rotation shaft and engaging with the low-stage movable tooth portion;a high-stage fixed scroll including a high-stage substrate portion having a flat-plate shape, and a high-stage fixed tooth portion having a spiral shape, protruding from the high-stage substrate portion in the axial direction of the rotation shaft and engaging with the high-stage ...

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Номер записи: 87
02-08-2018 дата публикации

Compact Energy Cycle Construction Utilizing Some Combination Of A Scroll Type Expander, Pump, And Compressor For Operating According To A Rankine, An Organic Rankine, Heat Pump, Or Combined Organic Rankine And Heat Pump Cycle

Номер: US20180216498A1
Автор: Shaffer Bryce R., Shaffer Robert W.
Принадлежит:

A compact energy cycle construction that utilizes a working fluid in its operation is disclosed having a compact housing of a generally cylindrical form, an orbiting scroll type expander, a central shaft which is driven by the expander, a generator having a rotor and a stator with the central shaft being mounted to the rotor for rotating the rotor relative to the stator, a pump mounted to the central shaft, an evaporator positioned between the expander and the generator and surrounding the central shaft, and the orbiting scroll type expander, the central shaft, the generator, the pump, and the evaporator being housed within the compact housing to form an integrated system operable in accordance with an energy cycle. 1. A compact energy cycle construction that utilizes a working fluid in its operation , comprising:a compact housing of a generally cylindrical form;a scroll expander;a central shaft which is driven by the expander;a generator having a rotor and a stator with the central shaft being mounted to the rotor for rotating the rotor relative to the stator;a pump mounted to the central shaft;an evaporator positioned between the expander and the generator and surrounding the central shaft; andthe scroll expander, the central shaft, the generator, the pump, and the evaporator being housed within the compact housing to form an integrated system operable in accordance with an energy cycle.2. The compact energy cycle construction of wherein the scroll expander is an orbiting scroll type expander.3. The compact energy cycle construction of wherein the scroll expander is a spinning type expander.4. The compact energy cycle construction of wherein the pump is a positive displacement type pump.5. The compact energy cycle construction of wherein the evaporator is constructed of extruded aluminum.6. The compact energy cycle construction of wherein the evaporator comprises an extruded aluminum tube having an end cap.7. The compact energy cycle construction of further ...

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Номер записи: 88
20-08-2015 дата публикации

SCROLL COMPRESSOR

Номер: US20150233375A1
Автор: Jin Honggyun, KIM Suchul, PARK Kiwon
Принадлежит:

A scroll compressor is provided. The scroll compressor may include a casing including a rotational shaft, a discharge cover fixed at an inside of the casing to partition the inside of the casing into a suction space and a discharge space, a first scroll rotated by the rotational shaft to perform an orbiting motion, a second scroll disposed on or at a side of the first scroll to define a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure among the plurality of compression chambers, a back pressure plate coupled to the second scroll, the back pressure plate having an intermediate pressure suction hole that communicates with the intermediate pressure discharge hole, a floating plate movably disposed on or at a side of the back pressure plate to define a back pressure chamber together with the back pressure plate, and a discharge guide defined in the first scroll or the second scroll to guide discharge of a refrigerant within the back pressure chamber. 1. A scroll compressor , comprising:a casing comprising a rotational shaft;a discharge cover fixed at an inside of the casing to partition the inside of the casing into a suction space and a discharge space;a first scroll rotated by the rotational shaft to perform an orbiting motion;a second scroll disposed at a side of the first scroll to define a plurality of compression chambers together with the first scroll, the second scroll having an intermediate pressure discharge hole that communicates with a compression chamber having an intermediate pressure of the plurality of compression chambers;a back pressure chamber assembly coupled to the second scroll, the back pressure chamber assembly having an intermediate pressure suction hole that communicates with the intermediate pressure discharge hole and defining a back pressure chamber; anda discharge guide defined in the ...

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Номер записи: 89
11-08-2016 дата публикации

Scroll-type fluid machine

Номер: US20160230759A1
Автор: Hiroshi Honda
Принадлежит: Sanden Holdings Corp

A scroll-type fluid machine including: a scroll unit ( 4 ) having a fixed scroll ( 2 ) and a movable scroll ( 3 ) in which a bottom plate center ( 3 c ) and a wrap spiral center ( 3 d ) are made eccentric; and a rotation-inhibiting mechanism ( 30 ) with multiple rotating-inhibiting parts ( 33 ), each part ( 33 ) being composed of a circular hole ( 31 ) and a pin ( 32 ), wherein the rotation-inhibiting mechanism ( 30 ), a straight line A connecting the bottom plate center ( 3 c ) and the wrap spiral center ( 3 d ) is rotated on the bottom plate center by 90° in a direction opposite to a wrapping direction of the wrap ( 3 b ), a point at which the rotated straight line A intersects a pitch circle is set as a center position of one of the rotation-inhibiting parts ( 33 ), the other rotation-inhibiting parts ( 33 ) are arranged on the pitch circle at even intervals based on one of the rotation-inhibiting part ( 33 ).

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Номер записи: 90
18-07-2019 дата публикации

Scroll compressor

Номер: US20190219055A1
Автор: Jaeheon Jeong, Jinhak CHOI, Minjae Kim
Принадлежит: LG ELECTRONICS INC

A scroll compressor including a bypass passage to guide compressed refrigerant from a compression chamber to a low pressure portion of the compressor; a valve that is inserted in a valve receiving portion and slides between first and second positions in which the bypass passage is respectively closed and opened; a ring-shaped seal between an outer peripheral surface of the valve and an inner peripheral surface of the valve receiving portion; and a seal groove formed in at least one of the outer peripheral surface of the valve and the inner peripheral surface of the valve receiving portion, the seal being inserted into the seal groove, wherein at least one of the outer peripheral surface of the valve, the inner peripheral surface of the valve receiving portion, and the inner peripheral surface of the seal groove has an inclined surface that is inclined in the opening/closing direction of the valve.

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Номер записи: 91
16-08-2018 дата публикации

REMOVABLE HYDROPAD

Номер: US20180230998A1
Автор: Colson Darryl A., Italia Lino S., Rosen Seth E., Rusich Richard
Принадлежит:

A scroll compressor is provided and includes a motor housing having a support surface, a fixed scroll fixedly disposable on the motor housing, an orbiting scroll which is operably disposable for fluid-compressive orbital movement relative to the fixed scroll and a removable hydropad removably disposable on the support surface between the orbiting scroll and the support surface. 1. A scroll compressor , comprising:a motor housing having a support surface;a fixed scroll fixedly disposable on the motor housing;an orbiting scroll which is operably disposable for fluid-compressive orbital movement relative to the fixed scroll; anda removable hydropad removably disposable on the support surface between the orbiting scroll and the support surface.2. The scroll compressor according to claim 1 , wherein the fixed and orbiting scrolls have complementary volute claim 1 , involute claim 1 , spiral or hybrid curve vane geometries.3. The scroll compressor according to claim 1 , wherein the orbiting scroll comprises:a base;an orbiting scroll vane that extends from the base in a first direction;a shaft that extends from the base in a second direction opposite the first direction; andhydropad seals that protrude from the base in the second direction.4. The scroll compressor according to claim 1 , further comprising a drive ring disposable about the support surface and the removable hydropad.5. The scroll compressor according to claim 1 , wherein the removable hydropad is one or more of pressable into claim 1 , screwable into or pinnable to the motor housing.6. The scroll compressor according to claim 1 , wherein a material of the removable hydropad differs from a material of the motor housing.7. The scroll compressor according to claim 6 , wherein the material of the removable hydropad is heavier than the material of the motor housing.8. The scroll compressor according to claim 6 , wherein the material of the removable hydropad comprises cast iron or aluminum alloy and the material ...

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Номер записи: 92
23-08-2018 дата публикации

SCROLL COMPRESSOR WITH RECESSES AND PROTRUSIONS

Номер: US20180238327A1
Автор: CHOI Yongkyu, KIM Cheolhwan, Lee Byeongchul
Принадлежит:

A compressor is provided. The compressor may include a fixed wrap, and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers. The fixed wrap and the orbiting wrap may have irregular wrap curves. At least one interference avoiding portion at which a spacing between the wraps is greater than an orbiting radius or at least one gap compensating portion at which the spacing between the wraps is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, may be provided on a sidewall surface of the fixed wrap or the orbiting wrap, whereby frictional loss or abrasion due to interference between the wraps or a refrigerant leakage due to a gap between the wraps may be prevented. 1. A scroll compressor comprising:a casing;a drive motor located within the casing,a rotation shaft connected to the drive motor, the rotation shaft having an eccentric portion;a frame located below the drive motor, the frame configured to receive the rotation shaft to support the rotation shaft, the shaft extending through the frame;a fixed scroll located below the frame, the fixed scroll having a fixed wrap, the shaft extending through the fixed scroll; anda orbiting scroll located between the frame and the fixed scroll, the orbiting scroll being connected to the eccentric portion of the rotation shaft, the orbiting scroll having a orbiting wrap configured to engage the fixed wrap, wherein the fixed wrap and the orbiting wrap have irregular wrap curves, wherein at least one of at least one interference avoiding portion at which a spacing between the fixed wrap and the orbiting wrap is greater than an orbiting radius or at least one gap compensating portion at which a spacing between the fixed wrap and the orbiting wrap is smaller than the orbiting radius, in a state in which a center of the fixed scroll and a center of the orbiting scroll are aligned with each other, ...

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Номер записи: 93
23-07-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200232463A1
Автор: Lee Kyung Jae, Seo Jeong Ki
Принадлежит:

A scroll compressor including a center housing; a front housing fastened to the center housing and forming a suction chamber; a rear housing fastened to the center housing and forming a compression mechanism accommodation space. Fixed scroll is in the compression mechanism accommodation space. An orbiting scroll interposes between the center housing and the fixed scroll forming a compression chamber together with the fixed scroll. Fixed scroll may include a fixed scroll end plate and a fixed scroll side plate protruded from outer circumferential portion of fixed scroll end plate, fastened to the center housing, and forming orbiting space of orbiting scroll. Outer circumferential portion of the center housing may be formed with an inflow hole for communicating with the suction chamber. Distal end surface of the fixed scroll side plate is formed with a suction port for guiding the refrigerant of the inflow hole to the compression chamber. 1. A scroll compressor , comprising:a center housing;a front housing fastened to the center housing and forming a suction chamber;a rear housing fastened to the center housing and forming a compression mechanism accommodation space;a fixed scroll provided in the compression mechanism accommodation space; andan orbiting scroll interposed between the center housing and the fixed scroll and forming a compression chamber together with the fixed scroll,wherein the fixed scroll comprises a fixed scroll end plate and a fixed scroll side plate protruded from the outer circumferential portion of the fixed scroll end plate, fastened to the center housing, and forming an orbiting space of the orbiting scroll,wherein the outer circumferential portion of the center housing is formed with an inflow hole for communicating with the suction chamber,wherein the distal end surface of the fixed scroll side plate is formed with a suction port for guiding the refrigerant of the inflow hole to the compression chamber,wherein the suction port comprises a ...

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Номер записи: 94
08-09-2016 дата публикации

Scroll Compressor With Variable Volume Ratio Port In Orbiting Scroll

Номер: US20160258434A1
Автор: DOEPKER Roy J., PEREVOZCHIKOV Michael M., Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a first scroll member, a second scroll member and a drive shaft. The first scroll member may include a first end plate defining a first discharge port and a first spiral wrap extending from the first end plate. The second scroll member may include a second end plate defining a first variable volume ratio port and a second spiral wrap extending from the second end plate and meshingly engaged with the first spiral wrap and forming compression pockets. The variable volume ratio port may be located radially outward relative to the first discharge port and in communication with a first compression pocket. The drive shaft may be engaged with the second scroll member and driving orbital displacement of the second scroll member relative to the first scroll member. 1. A compressor comprising:a shell;a first scroll member disposed within said shell and including a first end plate and a first spiral wrap extending from said first end plate;a second scroll member disposed within said shell and including a second end plate and a second spiral wrap extending from said second end plate and meshingly engaged with said first spiral wrap and forming compression pockets, said second end plate defining a variable volume ratio port and a discharge port, said variable volume ratio port located radially outward relative to said discharge port and in communication with one of said compression pockets, said discharge port in selective communication with said variable volume ratio port such that fluid is transferred from the variable volume ratio port to said discharge port at a location that is outside of the compression pockets; anda drive shaft engaged with said second scroll member and driving orbital displacement of said second scroll member relative to said first scroll member.2. The compressor of claim 1 , wherein said first end plate includes another discharge port claim 1 , said first and second spiral wraps define a central discharge pocket in communication ...

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Номер записи: 95
08-08-2019 дата публикации

Motor operated compressor

Номер: US20190242384A1
Автор: Byungkil YOO, Honghee Park, Jinyong Jang, Jongtae HER
Принадлежит: LG ELECTRONICS INC

An electric compressor includes a first scroll, a second scroll engaged with the first scroll and configured to form a compression chamber between portions of the second scroll and the first scroll during orbiting motion of the second scroll relative to the first scroll, and a frame fixed on an opposite side of the second scroll from the first scroll. A back-pressure space is formed between the frame and the second scroll, and pressure in the back-pressure space pushes the second scroll toward the first scroll. A back-pressure passage connects the compression chamber and the back-pressure space, and a valve member is disposed in the back-pressure passage and selectively blocks movement of a fluid from the back-pressure space to the compression chamber.

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Номер записи: 96
30-07-2020 дата публикации

SCROLL COMPRESSOR WITH BYPASS PORTIONS

Номер: US20200240410A1
Автор: CHOI Yongkyu, KIM Cheolhwan, WON Inho
Принадлежит:

There is disclosed a scroll compressor according to the present disclosure in which a discharge port is formed at a central portion thereof, and a pair of two compression chambers continuously moving toward the discharge port are formed, and a plurality of bypass portions are formed at each interval along a movement path of each compression chamber in the both compression chambers, and compression gradients of the both compression chambers are formed to be different from each other, wherein when an interval between a bypass portion closest to the discharge port and another bypass portion adjacent to the bypass portion among the bypass portions of each compression chamber is defined as a first interval, respectively, a first interval of a second bypass portion belonging to a compression chamber having a relatively larger compression gradient is formed to be smaller than that of a first bypass portion belonging to the other compression chamber between the both compressor chambers. 1. A compressor , comprising:a casing;a drive motor provided in the inner space of the casing;a rotating shaft coupled to the driving motor to rotate;an orbiting scroll comprising an orbiting end plate coupled to the rotating shaft, and an orbiting wrap extended along the circumference of orbiting end plate;a fixed scroll comprising a fixed end plate provided to face the orbiting scroll and including a suction port receiving a refrigerant and a discharge port spaced apart from the suction port to discharge the refrigerant, and a fixed wrap extending from the fixed end plate to engage the orbiting wrap to compress the refrigerant;wherein the fixed scroll further comprises:a suction port penetrating through the fixed end plate to receive the refrigerant and spaced apart from an outermost of the fixed wrap;a discharge port penetrating the fixed end plate to discharge the refrigerant, and spaced apart from an innermost of the fixed wrap;and a bypass portion comprising a first hole portion ...

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Номер записи: 97
27-11-2014 дата публикации

Scroll compressor

Номер: US20140348679A1
Автор: James F. Fogt, Kirill M. Ignatiev, Masao Akei
Принадлежит: Emerson Climate Technologies Inc

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.

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Номер записи: 98
27-11-2014 дата публикации

SCROLL COMPRESSOR

Номер: US20140348680A1
Автор: Lee Jaesang, Lee Kangwook, WON Inho
Принадлежит: LG ELECTRONICS INC.

A scroll compressor is provided, in which a fixed side discharge opening is formed eccentric from a geometrical center of an orbiting scroll toward an orbiting side discharge opening, so as to overlap the orbiting side discharge opening across a relatively wide area. This may reduce flow resistance between the orbiting side discharge opening and the fixed side discharge opening. Accordingly, a refrigerant compressed in a final compression chamber may be rapidly discharged without being blocked by an upper frame, while maintaining a proper discharge pressure. Since uniform pressure may be maintained in compression chambers positioned at both sides of the scroll compressor, input losses due to over-compression may be reduced. 1. A scroll compressor , comprising:a hermetic container defining an inner space;a fixed scroll provided in the inner space of the hermetic container, the fixed scroll having a fixed wrap;an orbiting scroll provided in the inner space of the hermetic container, the orbiting scroll having an orbital wrap that is engaged with the fixed wrap of the fixed scroll so as to form a compression chamber therebetween as the orbiting scroll performs an orbital motion with respect to the fixed scroll;a rotation shaft having an eccentric portion that extends through the fixed scroll and is coupled to the orbiting scroll, wherein the eccentric portion radially overlaps the orbital wrap; andan orbiting side discharge opening formed in the orbiting scroll, wherein the orbiting side discharge opening guides refrigerant compressed in the compression chamber into the inner space of the hermetic container.2. The scroll compressor of claim 1 , wherein the orbiting side discharge opening is formed near an inner end portion of the orbital wrap.3. The scroll compressor of claim 1 , further comprising a frame provided in the inner space claim 1 , at a second side of the orbiting scroll opposite a first side on which the orbital wrap is formed claim 1 , and configured to ...

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Номер записи: 99
22-09-2016 дата публикации

ELECTRIC SCROLL COMPRESSOR

Номер: US20160273536A1
Автор: DEGUCHI Hironobu
Принадлежит: VALEO JAPAN CO., LTD.

[Task] In an electric scroll compressor which includes a housing member in which a motor fixing portion and an end plate are integrated with each other, and in which a thrust load of a swing scroll is supported by the end plate, deformation of the end plate decreases. 1. An electric scroll compressor , comprising:a housing member;a compression mechanism which is accommodated in the housing member , and in which a fixing scroll having a substrate and a spiral wall and a swing scroll having a substrate and a spiral wall mesh with each other to form a compression chamber;a drive shaft by which the swing scroll is revolved;a rotation preventing mechanism which prevents rotation of the swing scroll; andan electric motor which is accommodated in the housing member and rotates the drive shaft,wherein the electric motor includes a rotor which is fixed to the drive shaft and a stator which excites and drives the rotor,wherein in the housing member, a motor fixing portion to which the electric motor is fixed, and an end plate which supports an axial load of the swing scroll and rotatably supports the drive shaft are integrally formed,wherein stator contact portions which come into contact with the stator and stator non-contact portions which do not come into contact with the stator are alternately disposed in a circumferential direction on an inner circumferential wall of the motor fixing portion, andwherein a hole, which is formed on a position corresponding to each of the stator contact portions in an axial direction and penetrates the end plate in the axial direction, is provided on the end plate.2. The electric scroll compressor according to claim 1 , wherein a reinforcing rib claim 1 , which is formed on a position corresponding to each of the stator non-contact portions in the axial direction and reinforces the end plate claim 1 , is provided on the end plate.3. The electric scroll compressor according to claim 2 , wherein the hole is a long hole which is long in a ...

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Номер записи: 100