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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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Применить Всего найдено 7833. Отображено 100.
12-04-2012 дата публикации

Motor-driven compressor

Номер: US20120087811A1
Автор: Akio Fujii, Ken Suitou, Shingo Enami, Tetsuya Yamada
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes a shell, an electric motor, a first conductor electrically connected to an external power source, a second conductor electrically connected to the electric motor, a connector connecting the first conductor and the second conductor and a connector case. The connector case has a first case member, a second case member, a first and a second seal members interposed between the first and the second case members, a hole through which the first conductor is inserted and a third seal member sealing between the first conductor and the connector case. A first main seal of the first seal member and a second main seal of the second seal member cooperate to form a cylindrical seal portion for sealing the second conductor that is inserted through the cylindrical seal portion when the first and the second seal members are joined.

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Номер записи: 1
27-09-2012 дата публикации

Counterweight incorporated into slider block for scroll compressor

Номер: US20120244026A1
Автор: Gregory W. Hahn, Patrice Bonnefoi, Ravi Mantrala
Принадлежит: Individual

A slider block has an inner bore which receives an eccentric pin, and a generally flat drive surface over a limited circumferential extent to be engaged by a flat drive surface on an eccentric pin. A counterweight is positioned on an outer periphery of the slider block. The counterweight has a center line defining a first plane. A second plane is defined parallel to the first plane, with the second plane including a point on the flat drive surface of the slider block, with the flat drive surface of the slider block including a third plane, and a non-zero angle defined between the second and third planes.

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Номер записи: 2
08-11-2012 дата публикации

Compressor and enclosure assembly for electrical components

Номер: US20120282124A1
Автор: Anne Dariene Powell, George A. Clark, Kenneth J. Monnier, Larry I. Bingham, Matthew Paul Dunn, Stephen Shotaro Sakai
Принадлежит: Emerson Climate Technologies Inc

A compressor electrical component enclosure may include a base and a lid. The base may include first and second opposing surfaces and a magnet. The magnet may be coupled to the second surface and may secure the base to a compressor shell. The lid may engage the base and cooperate with the base to define an electrical component housing.

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Номер записи: 3
13-12-2012 дата публикации

Scroll-Type Fluid Machine

Номер: US20120315174A1
Автор: Kiminori Iwano, Natsuki Kawabata, Shumpei Yamazaki, Toshikazu Harashima, Yoshio Kobayashi
Принадлежит: Hitachi Industrial Equipment Systems Co Ltd

A scroll-type fluid machine reduces intrusion of abrasion powders, generated by sliding of a conductor causing an orbiting scroll side and a fixed scroll side to be conducted, into a compression chamber, and improves reliability of a compressor. The scroll-type machine includes a casing, a fixed scroll having a flange surface attached to the casing, and a wrap portion provided at an end plate, an orbiting scroll having a wrap portion provided at the end plate, and provided in an opposed relationship with the fixed scroll, a drive shaft connected through a crank portion to the orbiting scroll, an orbiting bearing, a face seal portion arranged between the orbiting scroll and the fixed scroll, a cooling fan, and an orbiting scroll side conductive brush.

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Номер записи: 4
03-01-2013 дата публикации

Scroll compressor

Номер: US20130004354A1
Автор: Ikseo Park, Kyunghwan Kim, Myungkyun KIEM
Принадлежит: LG ELECTRONICS INC

A scroll compressor including a fixed scroll having a fixed wrap; and an orbiting scroll having an orbiting wrap engaged with the fixed wrap to form compression chambers, and performing an orbital motion with respect to the fixed scroll, wherein at least one of the fixed wrap and the orbiting wrap has a first constant section, a variable section, and a second constant section consecutively formed in a direction from a wrap final end to a wrap initial end.

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Номер записи: 5
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: 6
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: 7
11-04-2013 дата публикации

SCROLL REFRIGERATION COMPRESSOR

Номер: US20130089448A1
Автор: Ancel Christophe, Ginies Pierre
Принадлежит: DANFOSS COMMERCIAL COMPRESSORS

A compressor including: a stationary volute and a moving volute each including a plate provided with a scroll, said scrolls defining variable-volume compression chambers; a delivery line provided in the plate of the stationary volute; a delivery port arranged such as to establish a communication between the delivery line and a delivery chamber; and a non-return device including (i) a valve seat surrounding the delivery port and (ii) a delivery valve which can move between delivery port opening and closing positions. The compressor includes: at least one bypass passage having a first end opening into the delivery line at a point between the central compression chamber and the valve seat and a second end opening into an intermediate compression chamber or into a low-pressure portion of the compressor, and at least one bypass valve which can move between bypass passage closing and opening positions. 1. A scroll refrigeration compressor comprising:a stationary volute and a moving volute describing an orbital movement, each volute including a plate from which extends a scroll, the scrolls of the stationary and moving volutes being engaged into each other and delimiting variable-volume compression chambers,a delivery line made in the central portion of the plate of the stationary volute, comprising a first end opening into a central compression chamber and a second end intended to be put into communication with a delivery chamber made in the compressor, a valve seat surrounding the delivery port, and', 'a delivery valve moveable between an obturation position in which the delivery valve bears against the valve seat and obturates the delivery port and a release position in which the delivery valve is away from the valve seat and clears the delivery port, the delivery valve being designed so as to be displaced into its release position when the pressure in the delivery line exceeds the pressure in the delivery chamber by a first predetermined value,, 'an anti-return device ...

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Номер записи: 8
25-04-2013 дата публикации

ROTARY COMPRESSOR

Номер: US20130101454A1
Автор: Funakoshi Daisuke, Iida Noboru, Karino Tsuyoshi, Sawai Kiyoshi
Принадлежит: Panasonic Corporation

In a rotary compressor of a vane rotary type, an outer peripheral surface of an eccentric portion of a shaft on a side adjacent to a center of the shaft is located radially inwardly of an outer peripheral surface of a main shaft inserted in a main bearing and that of an auxiliary shaft inserted in an auxiliary bearing. Also, a back clearance means used in mounting a piston on the shaft is provided in each of an inner peripheral surface of the piston and the eccentric portion of the shaft. Such configurations can reduce a diameter of the eccentric portion. A reduction in diameter of the eccentric portion can reduce a viscous force of oil acting between the eccentric portion of the shaft and the inner peripheral surface of the piston to thereby reduce a rotational moment about a center of the eccentric portion of the shaft, which rotational moment acts on the piston in a direction of rotation of the shaft, thus making it possible to reduce a sliding loss that is generated by a reciprocating motion of a vane in a vane groove. 1. A rotary compressor comprising:a cylinder having opposite end surfaces and a vane groove defined therein;a main bearing and an auxiliary bearing secured to the opposite end surfaces of the cylinder, respectively, to define a cylinder chamber;a shaft having an eccentric portion formed between the main bearing and the auxiliary bearing, the shaft having a main shaft inserted in the main bearing and an auxiliary shaft inserted in the auxiliary bearing;a piston mounted on the eccentric portion of the shaft; anda vane loosely inserted in the vane groove for a reciprocating motion thereof, the vane partitioning the cylinder chamber into a suction chamber and a compression chamber and having a distal end hingedly connected to the piston;wherein an outer peripheral surface of the eccentric portion of the shaft on a side adjacent to a center of the shaft is located radially inwardly of an outer peripheral surface of the main shaft and that of the ...

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Номер записи: 9
09-05-2013 дата публикации

VANE COMPRESSOR

Номер: US20130115121A1
Автор: Ozawa Osamu, Tsutsumi Shuzo
Принадлежит: KASHIYAMA INDUSTRIES, LTD

Disclosed is a vane compressor in which cylinders concentrically formed at the side of a rotor are eccentrically inserted in ring-shaped spaces between cylindrical parts concentrically formed at the side of a stator. A pair of radially extending vane attachment grooves is formed in the rotor, and vanes are slidably attached in the vane attachment grooves. Compression chambers the volumes of which repeatedly increase and decrease with each rotation of the rotor are concentrically formed in multiple stages by the cylindrical parts of the stator, the cylinders of the rotor, and comb-tooth parts of the vanes. It is possible to realize a vane compressor in which compression chambers can be concentrically arranged in multiple stages in a simple structure by suppressing increase in the number of components to the minimum level. 1. A vane compressor , comprising:a stator;a rotor; andvanes for dividing an interstice between the stator and the rotor into a plurality of compression chambers wherein:the stator is equipped, towards an outside from a center thereof, with a first circular inner peripheral surface, a circular outer peripheral surface, and a second circular inner peripheral surface arranged concentrically about the center, an ring-shaped space being formed between the circular outer peripheral surface and the second circular inner peripheral surface;the rotor is equipped with a cylinder centered about a center thereof, and with at least one pair of vane attachment grooves that extend through the cylinder in a radial direction thereof;the cylinder is arranged in an eccentric state in the ring-shaped space of the stator, and divides the ring-shaped space into an outer peripheral-side space and an inner peripheral-side space;the vanes are slidably attached in the respective vane attachment grooves;the vanes are respectively equipped with first comb-tooth parts and second comb-tooth parts formed along a radial direction of the cylinder of the rotor, at a predetermined ...

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Номер записи: 10
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: 11
23-05-2013 дата публикации

Scroll-Type Fluid Machine

Номер: US20130129550A1
Автор: Hirawatari Sueji, Ijiri Makoto, Kudo Takayuki
Принадлежит:

A scroll-type fluid machine in which: a fixed scroll and a moveable scroll are disposed in a housing; a fluid pocket, the volume of which varies, is formed between the fixed scroll and the moveable scroll; and a thrust plate for receiving the reaction force in the axial direction of pressure applied within the fluid pocket is disposed between the bottom plate of the moveable scroll and the housing. The scroll-type fluid machine is characterized in that at least the surface of the thrust plate facing the bottom plate of the moveable scroll is subjected to tin plating. As a consequence, it is possible to efficiently produce, at a low cost, a thrust bearing which is disposed between the bottom plate of the moveable scroll and the housing, exerts excellent seizure resistance, and has a high PV limit level and a low friction coefficient. 1. A scroll-type fluid machine in which a fixed scroll and a movable scroll to revolve around the fixed scroll as being prevented from rotating are provided to a housing , a fluid pocket having a variable volume is provided between the fixed scroll and the movable scroll , and a thrust plate to bear an axial reaction force of a pressure applied into the fluid pocket is provided between a bottom plate of the movable scroll and the housing , characterized in that at least a surface of the thrust plate facing the bottom plate of the movable scroll is plated with tin-based metal.2. The scroll-type fluid machine according to claim 1 , wherein the thrust plate is made of iron-based steel plate claim 1 , cast metal or light metal.3. The scroll-type fluid machine according to claim 1 , wherein the thrust plate is provided with a base layer plated with the tin-based metal.4. The scroll-type fluid machine according to claim 3 , wherein the base layer is a nickel plating or a copper plating.6. The scroll-type fluid machine according to claim 1 , wherein the tin-based metal to be plated with has a thickness of 1-15 μm.7. The scroll-type fluid ...

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Номер записи: 12
30-05-2013 дата публикации

SCREW TYPE PUMP OR MOTOR

Номер: US20130136639A1
Автор: Simpson Alastair
Принадлежит: HIVIS PUMPS AS

A pump assembly comprising a stator and a rotor having vanes of opposite handed thread arrangements is described. A radial gap is located between the stator vanes and the rotor vanes such that rotation of the rotor causes the stator and rotor to co-operate to provide a system for moving fluid longitudinally between them. The operation of the pump results in a fluid seal being is formed across the radial gap. The described apparatus can also be operated as a motor assembly when a fluid is directed to move longitudinally between the stator and rotor. The presence of the fluid seal results in no deterioration of the pump or motor efficiency, even when the radial gap is significantly greater than normal working clearance values. Furthermore, the presence of the radial gap makes the pump/motor assembly ideal for deployment with high viscosity and/or multiphase fluids. 1. A pump assembly comprising a stator and a rotor , each one being provided with one or more vanes having an opposite handed thread with respect to the thread of the one or more vanes on the other , the stator and rotor co-operating to provide , on rotation of the rotor , a system for moving a fluid longitudinally between them , wherein a radial gap in the range of 1.28 mm to 10 mm is located between the one or more stator vanes and the one or more rotor vanes , and a ratio of a height one of the one or more rotor vanes to a height of the one or more stator vanes is in the range if 1.1 to 20 along the length of the pump assembly.25-. (canceled)6. A pump assembly as claimed in wherein the size of the radial gap is configured to increase or decrease along the length of the assembly.7. A pump assembly as claimed in wherein the rotor vanes are arranged on an external surface of the rotor so as to form one or more rotor channels.8. A pump assembly as claimed in wherein a ratio of the volume to cross sectional area of the rotor channels is equal to claim 7 , or greater than claim 7 , 200 mm.9. A pump assembly as ...

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Номер записи: 13
20-06-2013 дата публикации

Compressor protection and diagnostic system

Номер: US20130156607A1
Автор: Nagaraj Jayanth
Принадлежит: Emerson Climate Technologies Inc

A compressor diagnostic device is provided and includes at least one of a temperature sensor and a current sensor. The current sensor measures a first current flow through a motor of a refrigerant compressor. The temperature sensor is disposed within and sensing a temperature of a measurement region of an electrical conductor that is configured to close and open to allow and prevent current flow to the motor, respectively. The compressor diagnostic device also includes a controller in communication with the at least one of the current sensor and the temperature sensor. The controller is operable to control the electrical conductor based on a comparison of a second current flow through the motor and a maximum current.

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Номер записи: 14
27-06-2013 дата публикации

SCROLL COMPRESSOR

Номер: US20130164164A1
Автор: ADACHI Tooru, Fukumoto Minoru, Kusano Kiyozumi, Ogawa Nobuaki
Принадлежит: Panasonic Corporation

In a scroll compressor of the present invention, a fixed scroll and an orbiting scroll are meshed with each other such that spiral laps of the fixed scroll and the orbiting scroll inwardly face each other, an Oldham ring is provided between the main bearing member and the orbiting scroll and a key portion of the Oldham ring is inserted into a key groove of the main bearing member Grooves are formed in Oldham ring sliding surfaces on both sides of the key groove . According to this configuration, the Oldham ring and the main bearing member can be restrained from coming into contact with each other in the vicinity of the bearing key groove , and restrained from vibrating, and it is possible to provide an inexpensive scroll compressor of low noise. 1. A scroll compressor in which an orbiting scroll is provided between a main bearing member and a fixed scroll ,the fixed scroll and the orbiting scroll are meshed with each other such that spiral laps of the fixed scroll and the orbiting scroll inwardly face each other,an Oldham ring is provided between the main bearing member and the orbiting scroll, anda key portion of the Oldham ring is inserted into a key groove of the main bearing member, whereingrooves are formed in Oldham ring sliding surfaces on both sides of the key groove.2. The scroll compressor according to claim 1 , wherein a portion of each of the grooves in a sliding direction of the Oldham ring has a slope shape.3. The scroll compressor according to claim 1 , wherein relief grooves are formed in both sides of the key portion claim 1 , and the grooves are separated from the key groove.4. The scroll compressor according to claim 1 , wherein the grooves are laterally symmetrically formed in ranges of 60% or less of a diameter of the Oldham ring with respect to the key groove.5. The scroll compressor according to claim 1 , wherein the grooves are laterally symmetrically formed in ranges of 45° or less on left and right sides with respect to the key groove. The ...

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Номер записи: 15
18-07-2013 дата публикации

ROTARY COMPRESSOR

Номер: US20130183181A1
Автор: BAE Bum Joon, Baek Min Seok
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A rotary compressor capable of reducing a maximum load applied to a rotary shaft, the rotary compressor including a casing, a cylinder installed at an inside the casing and configured to provide a space to compress gas, a rotary shaft disposed while passing through the cylinder, a roller configured to compress gas by rotating along an inner circumferential surface of the cylinder, and an eccentric cam integrally formed with the rotary shaft and disposed at an inside the roller, wherein the eccentric cam is disposed at an eccentric position side in a shaft direction on an axial line of the rotary shaft. 1. A rotary compressor , comprising:a casing;a cylinder installed at an inside the casing and configured to provide a space to compress gas;a rotary shaft disposed while passing through the cylinder;a roller configured to compress gas by rotating along an inner circumferential surface of the cylinder; andan eccentric cam integrally formed with the rotary shaft and disposed at an inside the roller,wherein the eccentric cam is disposed at an eccentric position in a shaft direction on an axial line of the rotary shaft.2. The rotary compressor of claim 1 , wherein:the eccentric cam is eccentrically provided in a direction toward an upper side of the shaft direction.3. The rotary compressor of claim 1 , wherein:the rotary compressor comprises an upper flange and a lower flange provided at an upper portion and a lower portion of the cylinder, respectively, to rotatably support the rotary shaft, andthe eccentric cam is eccentrically provided in a direction toward the upper flange.4. An eccentric cam claim 1 , comprising:a rotary shaft; andan eccentric cam installed at the rotary shaft,wherein the eccentric cam is eccentrically provided in a shaft direction of the rotary shaft.5. The eccentric cam of claim 4 , wherein:the eccentric cam is eccentrically provided in a direction toward an upper side of the rotary shaft.6. A rotary compressor claim 4 , comprising:an airtight ...

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Номер записи: 16
25-07-2013 дата публикации

SCROLL COMPRESSOR

Номер: US20130189144A1
Автор: Nishide Youhei, Tsuka Yoshitomo, Yamamoto Masateru
Принадлежит: DAIKIN INDUSTRIES, LTD.

A scroll compressor includes a high-pressure space capable of communicating with a discharge port and a back pressure space capable of communicating with an intermediate port. A fluid passage includes a seal ring that closes the fluid passage when the pressure of the back pressure space is lower than that of the high-pressure space, and opens the fluid passage when the pressure of the back pressure space is higher than that of the high-pressure space. 1. A scroll compressor , comprising:a casing;a rotary compression mechanism housed in the casing, and including a compression chamber formed by engaging a fixed scroll and an orbiting scroll with each other;a discharge port located in the compression mechanism and being open at a discharge position of the compression chamber;an intermediate port located in the compression mechanism and being open at an intermediate position of the compression chamber;a forming member located in the casing and including a back pressure space and at least part of a fluid passage, the back pressure space facing a back surface of the orbiting scroll and communicating with the intermediate port, the fluid passage allowing a high-pressure space communicating with the discharge port and the back pressure space to communicate with each other; andan opening/closing mechanism configured to close the fluid passage when a pressure of the back pressure space is lower than that of the high-pressure space, and open the fluid passage when the pressure of the back pressure space is higher than that of the high-pressure space.2. The scroll compressor of claim 1 , whereinthe opening/closing mechanism is held by a ring groove that is open to the fluid passage of the forming member,the opening/closing mechanism is configured to freely expand and contract between an inner peripheral wall and an outer peripheral wall of the ring groove,the opening/closing mechanism is constituted by a seal ring including: an outer peripheral sealing surface that seals a gap ...

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Номер записи: 17
08-08-2013 дата публикации

Motor-driven compressor and hermetic sealing inspection method for the same

Номер: US20130202411A1
Автор: Tatsuya Ito
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes a compression mechanism compressing and discharging fluid, an electric motor driving the compression mechanism, a drive circuit controlling the electric motor, a drive circuit chamber accommodating the drive circuit and a hermetic sealing inspection port that allows the drive circuit chamber to be in communication with the outside thereof. The hermetic sealing inspection port includes a valve opening and closing the hermetic sealing inspection port. The drive circuit chamber can be pressurized or depressurized through the hermetic sealing inspection port. The hermetic sealing inspection is conducted by connecting an outside fluid machine to the hermetic sealing inspection port through a detachable tube. The fluid machine is operated so as to depressurize or pressurize the drive circuit chamber through the hermetic sealing inspection port. The pressure in the drive circuit chamber is measured by a pressure meter provided in the tube.

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Номер записи: 18
15-08-2013 дата публикации

Scroll compressor

Номер: US20130209305A1
Автор: Yuji Takei
Принадлежит: Sanden Corp

A scroll compressor configured in such a manner that a back pressure chamber is formed on the back surface side of the movable scroll using an annular seal means, and pressurized fluid is introduced into the back pressure chamber through a pressure introduction hole. A thrust bearing member which is a separate member from the seal means and bears a thrust force acting toward the main bearing member from the bottom plate section side of the movable scroll is disposed between the back surface of the bottom plate section of the movable scroll and the front surface of the main bearing member which faces the back surface of the bottom plate section. The scroll compressor is configured in such a manner that the scroll compressor can satisfy the demand for more compactness and that a reduction in the durability and sealing function of the annular seal means can be minimized.

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Номер записи: 19
19-09-2013 дата публикации

SCROLL-TYPE FLUID MACHINE

Номер: US20130243635A1
Автор: Matsuo Shiki, WATANABE Kazuhide, YAMAZAKI Hiroshi, Yoshida Takafumi, YOSHIKAWA Genta
Принадлежит: MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

Provided is a scroll-type fluid machine which can reduce deformation of a rotary scroll caused when fixing a bearing into a boss part. A scroll compressor, in which a sealed chamber confining a fluid is formed by a fixed scroll and the rotary scroll meshed together, each of the scrolls having a spiral wall erected on one side face of an end plate, includes: a metallic boss part (C) protruding from the other side face of the end plate of the rotary scroll; a metallic rotary bearing () inserted into the boss part (C); a crankshaft rotating around an axis and including a bush part inserted in the rotary bearing () and rotatably supported by the rotary bearing (); and an insert member () disposed between the boss part (C) and the rotary bearing () and having a thermal expansion coefficient greater than those of the boss part (C) and the rotary bearing (). 1. A scroll-type fluid machine , in which a sealed chamber confining a fluid is formed by a fixed scroll and a rotary scroll meshed together , each of the scrolls having a spiral wall erected on one side face of an end plate , the scroll-type fluid machine comprising:a metallic boss part protruding from the other side face of the end plate of the rotary scroll;a metallic bearing inserted into the boss part;a crankshaft rotating around an axis and including a bush part inserted in the bearing and rotatably supported by the bearing; andan insert member disposed between the boss part and the bearing and having a thermal expansion coefficient greater than those of the boss part and the bearing.2. The scroll-type fluid machine according to claim 1 , whereinthe insert member has a ring shape and is disposed along an inner face of the boss part. The present invention relates to a scroll-type fluid machine in which a sealed chamber confining a fluid is formed by a pair of fixed scroll and rotary scroll meshed together.A scroll compressor, in which a compression chamber is formed by a pair of fixed scroll and rotary scroll ...

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Номер записи: 20
26-09-2013 дата публикации

Motor-driven compressor

Номер: US20130251557A1
Автор: Ken Suitou, Kosaku Tozawa, Takayuki Ota, Tatsushi Mori
Принадлежит: Toyota Industries Corp

A motor-driven compressor includes an electric motor, a compression mechanism driven by the electric motor to compress refrigerant, a housing accommodating the electric motor and the compression mechanism, and a support having a mounting to be fastened to an object by a fastener. One of the housing and the support has a projection and the other of the housing and the support has a recess that is engaged with the projection through a vibration damper so that the support supports the housing.

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Номер записи: 21
21-11-2013 дата публикации

Compressor having a lower frame and a method of manufacturing the same

Номер: US20130309117A1
Автор: Kiuk LEE, Nara Han, Suchul Kim
Принадлежит: LG ELECTRONICS INC

A compressor having a lower frame and a method of manufacturing the same are disclosed. The compressor may include a cylindrical shell, a rotational shaft rotatably mounted in the cylindrical shell, a rotor and a stator that rotates the rotational shaft, a compression device driven by the rotational shaft, a lower bearing configured to rotatably support one side of the rotational shaft, a lower frame configured to support the lower bearing, the lower frame being configured to be press-fitted into a lower end portion of the cylindrical shell, and a base configured to seal the lower end portion of the cylindrical shell. The lower frame may include a main body configured to be press-fitted onto an inner circumferential surface of the cylindrical shell and a flange that extends from the main body, the flange being configured to limit a press-fit depth by contacting the lower end portion of the cylindrical shell.

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Номер записи: 22
28-11-2013 дата публикации

Three stage scroll vacuum pump

Номер: US20130315765A1
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 having a fixed cooling plate connected thereto and a first orbiting scroll having a orbiting cooling plate connected thereto, 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 ...

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Номер записи: 23
05-12-2013 дата публикации

Thrust plate for a horizontal scroll compressor and a horizontal scroll compressor having the same

Номер: US20130323105A1
Автор: Chao Jiang, Linzhi Chao, Shuichong Fan
Принадлежит: Emerson Climate Technologies Inc

A thrust plate for a compressor may include first and second ends and a feed hole. The first end may include a thrust surface. The second end may include a lubricant accumulation feature. The feed hole may extend between the lubricant accumulation feature and the thrust surface to provide communication therebetween. The feed hole may be angled relative to a longitudinal axis of the thrust plate such that lubricant flows through the feed hole from the lubricant accumulation feature to the thrust surface.

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Номер записи: 24
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: 25
16-01-2014 дата публикации

SCROLL COMPRESSOR

Номер: US20140017109A1
Автор: Cameron Alexander Murray, Jones Peter David
Принадлежит: EDWARDS LIMITED

A scroll compressor may include an orbiting scroll having an orbiting scroll wall extending axially from an orbiting scroll plate towards a fixed scroll; a fixed scroll having a fixed scroll wall extending axially from a fixed scroll plate towards the orbiting scroll; and an axially extending drive shaft having an eccentric shaft portion so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll. An axial end portion of the orbiting scroll wall has a first seal for sealing between the orbiting scroll wall and the fixed scroll plate, and an axial end portion of the fixed scroll wall has a second seal for sealing between the fixed scroll wall and the orbiting scroll plate; and the first seal or the second seal has an aspect ratio of axial length to radial width which is 1:1.25 or greater. 1. A scroll compressor comprising:an orbiting scroll;a fixed scroll having a fixed scroll wall extending axially from a fixed scroll plate towards the orbiting scroll, wherein the orbiting scroll has an orbiting scroll wall extending axially from an orbiting scroll plate towards the fixed scroll; andan axially extending drive shaft having an eccentric shaft portion so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll, wherein an axial end portion of the orbiting scroll wall has a first seal for sealing between the orbiting scroll wall and the fixed scroll plate, and an axial end portion of the fixed scroll wall has a second seal for sealing between the fixed scroll wall and the orbiting scroll plate; and wherein the first seal or the second seal has an aspect ratio of axial length to radial width which is 1:1.25 or greater.2. The scroll compressor of claim 1 , wherein the aspect ratio of the first seal or the second seal is 1:1.25 or greater over an entire involute from a pump inlet to a pump outlet.3. The scroll compressor of claim 1 , wherein ...

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Номер записи: 26
06-02-2014 дата публикации

REFRIGERANT SCROLL COMPRESSOR FOR MOTOR VEHICLE AIR CONDITIONING SYSTEMS

Номер: US20140037485A1
Автор: Guntermann Bernd, Heckt Roman, Klotten Thomas, Schneider Peter, Woelk Peter Michael
Принадлежит: VISTEON GLOBAL TECHNOLOGIES, INC.

A refrigerant scroll compressor for a motor vehicle air conditioning system having a fixed scroll, an orbiting scroll engaging with the fixed scroll, wherein the fixed scroll and the orbiting scroll cooperate to compress a refrigerant gas. An intermediate pressure chamber is disposed adjacent the orbiting scroll, an oil return duct provides fluid communication between the intermediate pressure chamber and a high pressure area of the refrigerant scroll compressor, and at least one intermediate pressure duct is formed in one of the orbiting scroll and fixed scroll and is in fluid communication with the intermediate pressure chamber. 1. A refrigerant scroll compressor for a motor vehicle air conditioning system comprising:a fixed scroll;an orbiting scroll engaging with the fixed scroll, wherein the fixed scroll and the orbiting scroll cooperate to compress a refrigerant gas;an intermediate pressure chamber disposed adjacent the orbiting scroll;an oil return duct providing fluid communication between the intermediate pressure chamber and a high pressure area of the refrigerant scroll compressor; andat least one intermediate pressure duct formed in one of the orbiting scroll and the fixed scroll and in fluid communication with the intermediate pressure chamber.2. The refrigerant scroll compressor of claim 1 , wherein the fixed scroll and the orbiting scroll cooperate to define a plurality of cavities intermediate the fixed scroll and the orbiting scroll claim 1 , wherein the at least one intermediate pressure duct is in fluid communication with at least one of the plurality of cavities and is configured to facilitate a flow of the refrigerant gas between the at least one of the plurality of cavities and the intermediate pressure chamber.3. refrigerant scroll compressor of claim 1 , further comprising an oil extraction duct in fluid communication with the intermediate pressure chamber.4. The refrigerant scroll compressor of claim 3 , further comprising an expansion device ...

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Номер записи: 27
13-02-2014 дата публикации

Scroll compression device

Номер: US20140044572A1
Автор: Akihiro Hayashi, Katsuki Akuzawa, Kazuyoshi Sugimoto, Kenji Aida, Satoshi Iitsuka, Tsutomu Kon, Yasunori Kiyokawa, Yoshiaki Nagasawa, Yoshihiko Nagase
Принадлежит: Sanyo Electric Co Ltd

A scroll compression mechanism 11 for compressing refrigerant and a driving motor 13 that drives the scroll compression mechanism 11 are accommodated in a casing 3, the scroll compression mechanism 11 is supported in the casing 3 by a main frame 21, the driving shaft 15 is connected to a rotor 39 of the driving motor 13 and supported in the casing 3 by a bearing plate 8, a pickup 45 is connected to an oil supply path 41 extending in an up-and-down direction in the driving shaft 15, and intercommunication paths 38 B, 54 A through which lubrication oil scraped up by the pickup 45 and supplied to respective lubrication sites is returned to the lower side of the driving motor 13 are provided between the stator 37 and the spacer ring 38 or between the spacer ring 38 and the casing 3.

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Номер записи: 28
13-02-2014 дата публикации

SCROLL COMPRESSOR HAVING ADJUSTABLE SPACERS

Номер: US20140044582A1
Автор: Collie Clive Frederick
Принадлежит: EDWARDS LIMITED

A scroll compressor comprises: housing orbiting scroll and fixed scroll The drive shaft has an eccentric shaft portion so that rotation of the eccentric shaft portion imparts an orbiting motion to the orbiting scroll relative to the fixed scroll. Axial spacers are located between the fixed scroll and the housing for spacing the fixed scroll relative to the orbiting scroll. When the scroll compressor is assembled and tested and it is desired to perform shimming, the fixed scroll can be removed and a selected spacer placed in position prior to re-assembling the fixed scroll. 1. A method comprising:removing a fixed scroll from a housing of a scroll compressor comprising a fixed scroll and an orbiting scroll;replacing a first axial spacer from a plurality of axial spacers between the housing and the fixed scroll with a replacement axial spacer, wherein the replacement axial spacer defines a different axial thickness than the first axial spacer, and wherein the plurality of axial spacers and the replacement axial spacer define a spacing in at least one of an axial direction or an angular alignment between a fixed scroll and an orbiting scroll of a scroll compressor; andfixing the fixed scroll to the housing.2. The method of claim 1 , wherein respective axial spacers of the plurality of axial spacers are located at generally equal angles with respect to a central axis of the compressor.3. The method of claim 1 , wherein at least one of the housing or the fixed scroll comprises means for locating the plurality of axial spacers in position between the fixed scroll and the housing claim 1 , and wherein replacing the first axial spacer from the plurality of axial spacers between the housing and the fixed scroll with the replacement axial spacer comprises removing the first axial spacer from a respective one of the means for location the plurality of axial spacers and locating the replacement axial spacer4. The method of claim 1 , wherein each of the plurality of axial spacers ...

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Номер записи: 29
27-02-2014 дата публикации

SCROLL COMPRESSION DEVICE

Номер: US20140056736A1
Автор: Aida Kenji, Akuzawa Katsuki, Hayashi Akihiro, Iitsuka Satoshi, Kiyokawa Yasunori, Kon Tsutomu, Nagasawa Yoshiaki, Nagase Yoshihiko, Sugimoto Kazuyoshi
Принадлежит: SANYO ELECTRIC CO., LTD.

A scroll compression mechanism for compressing refrigerant and a driving motor that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing the scroll compression mechanism is supported in the casing by a main frame a stator of the driving motor is directly or indirectly supported in the casing and the driving shaft is connected to a rotor of the driving motor and supported in the casing by a bearing plate and a lower end of the driving shaft is supported by a thrust plate provided to the bearing plate and the center position of the rotor is located to be lower than the center position of the stator 1. A scroll compression device , characterized in that:a scroll compression mechanism for compressing refrigerant and a. driving motor that is connected to the scroll compression mechanism through a driving shaft and drives the scroll compression mechanism are accommodated in a casing;the scroll compression mechanism is supported in the casing by a main frame;a stator of the driving motor is directly or indirectly supported in the casing;the driving shaft is connected to a rotor of the driving motor and supported in the casing by a healing plate, and a lower end of the driving shaft is supported by a thrust plate provided to the bearing plate; andthe center position of the rotor is located to be lower than the center position of the stator.2. The scroll compression device according to claim 1 , wherein the center position of the rotor is located to be lower than the center position of the stator in such a range that the rotor does not jump up when the driving motor is started.3. The scroll compression device according to claim 1 , wherein the center position of the rotor is coincident with the center position of the stator and upward force acts on the rotor during operation.4. The scroll compression device according to claim 1 , wherein the center position of the rotor is located to ...

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Номер записи: 30
13-03-2014 дата публикации

COMPRESSOR HAVING CAPACITY MODULATION ASSEMBLY

Номер: US20140072466A1
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;a first scroll member disposed within said shell assembly and including a first end plate having a discharge passage, a first spiral wrap extending from said first end plate and a biasing passage extending through 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 with each other and forming a series of pockets therebetween;a seal assembly engaging said first scroll member and isolating said discharge pressure region from said suction pressure region, said seal assembly and said first scroll member defining an axial biasing chamber therebetween, said biasing passage being in communication with a first of said pockets and said axial biasing chamber;a modulation control chamber fluidly coupled with said axial biasing chamber by a first passage; anda modulation ...

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Номер записи: 31
03-04-2014 дата публикации

Rotary compressor

Номер: US20140093414A1
Автор: Takayuki Omura, Taku Morishita
Принадлежит: Fujitsu General Ltd

A rotary compressor, used e.g. in an air conditioner, includes a compressing unit having an end plate that closes an end portion of an annular cylinder. The end plate includes a groove portion accommodating a discharge valve portion having a reed valve type discharge valve and a discharge-valve limiter. The discharge valve portion is attached to the groove portion with a rivet. The groove portion has a rivet-side enlarged diameter portion formed into a semicircular step shape, and a diameter of the rivet-side enlarged diameter portion other than a bottom side thereof is larger than a diameter of the bottom side. This prevents a punch P that swages the rivet from interfering with the groove portion when attaching the discharge valve portion to the groove portion with the rivet.

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Номер записи: 32
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: 33
05-01-2017 дата публикации

Scroll compressor

Номер: US20170002816A1
Автор: Takashi Uekawa
Принадлежит: Daikin Industries Ltd

A scroll compressor includes a casing with an oil reservoir, fixed and movable scrolls, a crank shaft, and a housing having an upper bearing rotatably supporting the crank shaft. The crank shaft has an oil feed path and the housing has a crank chamber. An outer peripheral surface of the crank shaft has an annular groove, and a spiral groove. The housing has a bearing back-face passage connecting the crank chamber and the annular groove. If no oil is fed from the oil reservoir to the sliding surface of the crank shaft through the oil feed path during rotation of the crank shaft, oil in the crank chamber is fed to the upper bearing from the crank chamber through the bearing back-face passage and the annular groove due to a pump effect of the spiral groove.

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Номер записи: 34
05-01-2017 дата публикации

COMPRESSOR WITH THERMAL PROTECTION SYSTEM

Номер: US20170002817A1
Автор: Stover Robert C.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor includes a housing, a partition, a first scroll, a second scroll, and a thermal protection system. The partition is disposed within the housing and defines a suction chamber and a discharge chamber. The partition includes a discharge passage in fluid communication with the discharge chamber. The thermal protection system includes a positioning body and a displacement member. The positioning body is coupled to the second scroll and translatably disposed within the discharge passage. The displacement member is disposed between the positioning body and the partition and configured to translate the second scroll relative to the first scroll between first and second positions. 1. A compressor comprising:a housing;a partition disposed within the housing, the partition defining a suction chamber and a discharge chamber, and including a discharge passage in fluid communication with the discharge chamber;a first scroll supported within said housing and including a first endplate having a first spiral wrap extending therefrom;a second scroll supported within said housing and including a second endplate having a first side and a second side opposite the first side, the first side having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a series of compression pockets; anda thermal protection system including a positioning body and a displacement member, the positioning body coupled to the second scroll and translatable relative to the discharge passage, the displacement member disposed between the positioning body and the partition and configured to translate the second scroll relative to the first scroll between first and second positions in response to a change in an operating temperature of the compressor.2. The compressor of claim 1 , wherein the displacement member comprises a shape memory material.3. The compressor of claim 2 , wherein the shape memory material includes at least one of a bi-metal and tri-metal ...

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Номер записи: 35
01-01-2015 дата публикации

SCROLL COMPRESSOR

Номер: US20150004040A1
Автор: Katou Katsumi, Sakae Satoru
Принадлежит:

A scroll compressor includes a compression mechanism having fixed and orbiting scrolls engaged with each other to form a compression chamber. Each of the fixed and orbiting scrolls includes an end plate and a spiral wall-shaped wrap extending from the end plate. The fixed scroll has an injection port configured to communicate with the compression chamber through a communication passageway located in the fixed-side end plate. The orbiting-side wrap has a thick portion located at a position corresponding to the injection port and having an increasing tooth thickness portion. A tooth thickness of the increasing tooth thickness portion increases from a start of winding to an end of winding of the orbiting-side wrap. The thick portion has a thickness greater than or equal to a dimension of an opening of the injection port measured along a tooth thickness of the orbiting-side wrap. 1. A scroll compressor comprising: a fixed scroll including a fixed-side end plate and a spiral wall-shaped fixed-side wrap extending from the fixed-side end plate, and', 'an orbiting scroll including an orbiting-side end plate and a spiral wall-shaped orbiting-side wrap extending from the orbiting-side end plate,, 'a compression mechanism including'}the fixed-side wrap and the orbiting-side wrap being engaged with each other to form a compression chamber between the fixed and orbiting scrolls,the fixed scroll having an injection port configured to communicate with the compression chamber through a communication passageway located in the fixed-side end plate,the orbiting-side wrap having a thick portion thicker than an adjacent portion, the thick portion having an increasing tooth thickness portion, and the thick portion being located at a position corresponding to the injection port,a tooth thickness of the increasing tooth thickness portion increasing from a start of winding to an end of winding of the orbiting-side wrap, andthe thick portion having a thickness greater than or equal to a ...

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Номер записи: 36
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: 37
07-01-2016 дата публикации

Scroll Compressor

Номер: US20160003252A1
Автор: Fukaya Yoshihiro, Hasegawa Shuji, IMADA Koichi, Ishikawa Akihiro, Tsuchiya Takeshi
Принадлежит:

An object is to enable suppression of degradation of reliability by supporting a flange portion of a crankshaft with a bearing while downsizing a scroll compressor by reducing the size of the flange portion of the crankshaft. A scroll compressor includes: a fixed scroll fixed to a frame; an orbiting scroll forming a compression chamber by performing an orbital motion with respect to the fixed scroll; an electric motor that drives the orbiting scroll via the crankshaft; and a bearing part provided on the lower side from the flange portion of the crankshaft that rotatably supports a main shaft part of the crankshaft. The scroll compressor furthers has a thrust stopper, provided between the flange portion and the bearing part, in contact with the flange portion on the upper side and in contact with the bearing part on the lower side. Assuming that the outer diameter of the flange portion is φDt and the outer diameter of the thrust stopper is φDs, φDt<φDs holds. 1. A scroll compressor comprising:a fixed scroll fixed to a frame;an orbiting scroll that forms a compression chamber by performing an orbital motion with respect to the fixed scroll;an electric motor that drives the orbiting scroll via a crankshaft; anda bearing part provided on the lower side from a flange portion of the crankshaft that rotatably supports a main shaft part of the crankshaft,wherein the compressor further has a thrust stopper, provided between the flange portion and the bearing part, in contact with the flange portion on the upper side and in contact with the bearing part on the lower side, and{'b': '12', 'i': 'd', 'wherein, assuming that an outer diameter of the flange portion is φDt and an outer diameter of the thrust stopper is φDs,'}φDt<φDs holds.2. The scroll compressor according to claim 1 , wherein the thrust stopper and the flange portion are integrally formed with the same member as the member of the crankshaft.3. The scroll compressor according to claim 1 , wherein the position of an ...

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Номер записи: 38
07-01-2021 дата публикации

COMPRESSOR

Номер: US20210003130A1
Автор: KIM Sungchoon, LEE Donggeun
Принадлежит:

A compressor is provided that may include a refrigerant flow path provided in a rotational shaft so as to guide a refrigerant gas. The rotational shaft operates a compression device using a drive force of an electric motor. In such a structure, the refrigerant gas may be directly discharged to a discharge space without passing through other portions such that flow path resistance may be minimized. 1. A compressor , comprising:a hermetic casing having a discharge space to which a refrigerant gas is discharged;an electric motor provided in the hermetic casing to supply a rotational drive force;a compression device provided in the hermetic casing so as to compress the refrigerant gas; anda rotational shaft that operates the compression device using the rotational drive force of the electric motor, wherein the rotational shaft includes a refrigerant flow path provided therein, the rotational shaft guiding the compressed refrigerant gas to the discharge space from the compression device.2. The compressor of claim 1 , wherein the discharge space in the hermetic casing is provided at an upper side of an inner space of the hermetic casing and an oil storage space in which oil is stored is provided at a lower side of the inner space of the hermetic casing claim 1 , wherein the electric motor is positioned in a lower portion of the discharge space claim 1 , wherein the compression device is positioned at a lower side of the electric motor claim 1 , wherein the rotational shaft is formed through each of centers of the electric motor and the compression device such that an upper end of the rotational shaft is exposed to the discharge space and a lower end of the rotational shaft is exposed to a space beneath the compression device claim 1 , and wherein the refrigerant flow path communicates with the discharge space and the space beneath the compression device such that the refrigerant gas discharged to the space beneath the compression device is guided to the discharge space.3. ...

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Номер записи: 39
07-01-2021 дата публикации

SCROLL COMPRESSOR

Номер: US20210003131A1
Автор: IWATAKE Wataru, KAKUDA Masayuki, KAWAMURA Raito, Sasaki Kei, Sekiya Shin
Принадлежит: Mitsubishi Electric Corporation

A scroll compressor in which refrigerant gas is sucked into a hermetic container and is then compressed in a compression chamber. The scroll compressor includes an orbiting scroll including a second end plate having a second surface. The second end plate has an annular groove having an opening that opens into the second surface facing a frame and serving as a back-pressure chamber with the opening being closed by the frame, a gas communication path through which the groove communicates with the compression chamber in which the refrigerant gas is being compressed, and a first oil supply passage having a first opening that opens into at least one of a region inside the groove and a region outside the groove in the second surface and through which the refrigerating machine oil is supplied to a gap between the second surface and the frame. 1. A scroll compressor comprising:a fixed scroll including a first end plate and a first wrap located on the first end plate;an orbiting scroll including a second end plate and a second wrap located on a first surface of the second end plate that faces the fixed scroll, the orbiting scroll being disposed to define a compression chamber to compress refrigerant between the first wrap and the second wrap and orbiting relative to the fixed scroll;a frame facing a second surface opposite the first surface in the orbiting scroll and supporting a load on the orbiting scroll during compression of refrigerant gas; anda hermetic container containing the fixed scroll, the orbiting scroll, and the frame and including an oil sump in which refrigerating machine oil is held,the scroll compressor being configured to suck the refrigerant gas into the hermetic container and then compress the refrigerant gas in the compression chamber, an annular groove having an opening that opens into the second surface and serving as a back-pressure chamber with the opening being closed by the frame,', 'a gas communication path through which the groove communicates ...

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Номер записи: 40
13-01-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220010797A1
Автор: ISHIZONO Fumihiko, TAKAMURA Yuji, TATSUWAKI Kohei
Принадлежит:

A scroll compressor includes: a shell forming an outer case, the shell forming an oil reservoir in which lubricating oil is reserved; a fixed scroll stored in the shell; an orbiting scroll stored in the shell, the orbiting scroll forming a compression chamber together with the fixed scroll; a frame holding the orbiting scroll; a thrust plate disposed between the orbiting scroll and the frame; and a thrust oil return pipe fixed to the frame, the thrust oil return pipe being a pipe through which the lubricating oil flows to return to the oil reservoir, in which: a hole portion is formed on the thrust plate, the hole portion passing from a first surface portion to a second surface portion, the first surface portion slidably contacting with the orbiting scroll, the second surface portion facing the frame; and the thrust oil return pipe is inserted into the hole portion and is fit in the thrust plate, and an upper end portion of the thrust oil return pipe does not protrude from the first surface portion of the thrust plate. 1. A scroll compressor comprising:a shell forming an outer case, the shell forming an oil reservoir in which lubricating oil is reserved;a fixed scroll stored in the shell;an orbiting scroll stored in the shell, the orbiting scroll forming a compression chamber together with the fixed scroll;a frame holding the orbiting scroll;a thrust plate disposed between the orbiting scroll and the frame; anda thrust oil return pipe fixed to the frame, the thrust oil return pipe being a pipe through which the lubricating oil flows to return to the oil reservoir, wherein:a hole portion is formed on the thrust plate, the hole portion passing from a first surface portion to a second surface portion, the first surface portion slidably contacting with the orbiting scroll, the second surface portion facing the frame; andthe thrust oil return pipe is inserted into the hole portion and is fit in the thrust plate, and an upper end portion of the thrust oil return pipe does ...

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Номер записи: 41
08-01-2015 дата публикации

SCROLL COMPRESSOR

Номер: US20150010417A1
Автор: Lim Kweon Soo, Park Il Young, Won Jong Bo
Принадлежит:

Disclosed herein is a scroll compressor in which refrigerant is compressed in a compression chamber while the volume of the compression chamber is gradually decreased due to relative rotation of a fixed scroll and an orbiting scroll. In accordance with the disclosure, the scroll compressor is provided in which a pressure in a back-pressure chamber is managed in connection with a discharge refrigerant pressure so that the orbiting scroll is supported by the pressure in the back-pressure chamber without a power loss or an inner leak in an overall pressure section of a scroll. 1. A scroll compressor comprising:a housing including a suction port and a discharge port formed in an outer peripheral surface of the housing, the housing defining a suction chamber and a discharge chamber, the suction chamber communicating with the suction port and the discharge chamber communicating with the discharge port;a fixed scroll disposed in a first portion of the housing and having an outlet formed therein communicating with the discharge chamber;a drive motor mounted to a second portion of the housing including a rotary shaft coupled thereto;an orbiting scroll eccentrically coupled to an end of the rotary shaft and configured to revolve about the fixed scroll, the orbiting scroll cooperating with the fixed scroll to define a plurality of compression chambers;a back-pressure chamber defined by the housing between the orbiting scroll and the rotary shaft, the back-pressure chamber configured to urge the orbiting scroll towards the fixed scroll;a back-pressure regulation passage comprising a first passage through which the discharge chamber communicates with the back-pressure chamber and a second passage through which the back-pressure chamber communicates with the suction chamber; anda pressure regulation unit in communication with the back-pressure regulation passage configured to regulate a pressure in the back-pressure chamber in response to a pressure in the discharge chamber.2. ...

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Номер записи: 42
12-01-2017 дата публикации

MOTOR VEHICLE VACUUM PUMP

Номер: US20170009770A1
Автор: DES ENVER, JOB MORITZ JOHANNES
Принадлежит: PIERBURG PUMP TECHNOLOGY GMBH

A motor vehicle vacuum pump includes a pumping chamber in which a pump rotor rotates to compress a gas, an outlet chamber into which the gas exits, a separation wall which includes a valve opening and a valve seat arranged on an outlet side of the separation wall around the valve opening. The separation wall separates the pumping chamber from the outlet chamber. An outlet valve is formed as a non-return valve in the separation wall. The outlet valve is formed by the valve opening in the separation wall and includes a valve body with a closing body. The outlet valve has the gas exit therethrough from the pumping chamber into the outlet chamber. A corresponding part of the closing body is supported on the valve seat when the closing body is in a closed position. The valve seat and/or the corresponding part of the closing body includes microgrooves. 110-. (canceled)11. A motor vehicle vacuum pump comprising:a pump rotor;a pumping chamber in which the pump rotor is arranged to rotate so as to provide a compressed gas;an outlet chamber into which the compressed gas exits from the pumping chamber;a separation wall comprising a valve opening and a valve seat arranged on an outlet side of the separation wall around the valve opening, the separation wall being configured to separate the pumping chamber from the outlet chamber;an outlet valve formed as a non-return valve in the separation wall, the outlet valve being formed by the valve opening in the separation wall and comprising a valve body which comprises a closing body, the outlet valve being configured to have the compressed gas exit from the pumping chamber into the outlet chamber therethrough,wherein,a corresponding part of the closing body is supported on the valve seat when the closing body is in a closed position, andat least one of the valve seat and the corresponding part of the closing body comprises microgrooves oriented in a lateral direction.12. The motor vehicle vacuum pump as recited in claim 11 , wherein ...

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Номер записи: 43
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: 44
14-01-2021 дата публикации

Compressor Having Capacity Modulation

Номер: US20210010472A1
Автор: James W. MCBEAN, Joseph B. Burton, Phillip M. Moore, Robert V. Eyink
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a shell assembly, first and second scrolls, a piston, and a piston-retention member. The piston engages the first scroll and may be partially received within a recess defined by the shell assembly. The piston and the shell assembly may cooperate to define a pressure chamber. The pressure chamber may be in selective fluid communication with a source of working fluid to control movement of the piston relative to the shell assembly. The piston-retention member may engage the piston and a rotationally fixed structure. The piston-retention member allows rotation of the piston relative to the first scroll in a first rotational direction and restricts rotation of the piston relative to the first scroll in a second rotational direction.

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Номер записи: 45
14-01-2021 дата публикации

COMPRESSOR

Номер: US20210010473A1
Автор: Choi Jungsun, KIM Cheolhwan, PARK Sangbaek
Принадлежит:

A compressor, more particularly, a scroll compressor provides structures that may enhance centrifugal stiffness at a contact point between a fixed scroll and an orbiting scroll. The compressor may include an orbiting scroll having an orbiting scroll wrap wound around a radial-direction inner area from a radial-direction outer area; and a fixed scroll having a fixed scroll wrap wound around the radial-direction inner area from the radial-direction outer area. A surfacing part may be configured to narrow a distance between the orbiting scroll wrap and the fixed scroll wrap may be formed in a predetermined section of the orbiting scroll or fixed scroll wrap. 1. A compressor comprising:an orbiting scroll having an orbiting scroll wrap;a fixed scroll having a fixed scroll wrap; anda surfacing part that is disposed at the orbiting scroll wrap or the fixed scroll wrap and that reduces a distance between the orbiting scroll wrap and the fixed scroll wrap.2. The compressor of claim 1 , wherein the distance between the orbiting scroll wrap and the fixed scroll wrap is uniform except for an area including the surface part and areas at ends of the orbiting scroll wrap and the fixed scroll wrap.3. The compressor of claim 1 , wherein the orbiting scroll wrap and the fixed scroll wrap have thicknesses that at least partially vary claim 1 , andwherein the distance between the orbiting scroll wrap and the fixed scroll warp is constant except for an area including the surfacing part.4. The compressor of claim 1 , wherein the orbiting scroll and the fixed scroll are configured to make four or five contact points between the orbiting scroll wrap and the fixed scroll wrap based on the orbiting scroll orbiting with respect to the fixed scroll.5. The compressor of claim 4 , wherein the surfacing part is disposed at one of the contact points.6. The compressor of claim 4 , wherein an orbiting angle of the orbiting scroll has (i) a first range in which the four contact points are made ...

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Номер записи: 46
10-01-2019 дата публикации

Compressor With Floating Seal

Номер: US20190010944A1
Автор: Bharat Mahavir SHIROTE, Patrick R. Gillespie, Pavan Pralhad JORWEKAR, Vikas Ramkumar VERMA, Yogesh Sudhirarao MAHURE
Принадлежит: Emerson Climate Technologies Inc

A compressor may include first and second scrolls and a seal. The first scroll includes a first end plate and a first spiral wrap extending from the first end plate. The first end plate may define a discharge passage and an annular recess surrounding the discharge passage. The second scroll includes a second end plate and a second spiral wrap extending from the second end plate. The first and second spiral wraps cooperate to define a plurality of fluid pockets. The seal may be at least partially received in the annular recess and may cooperate with the first scroll to define a biasing chamber receiving fluid at an intermediate pressure. The seal may include inner and outer diametrical surfaces. The inner diametrical surface may include a plurality of first annular grooves. The outer diametrical surface may include a plurality of second annular grooves.

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Номер записи: 47
10-01-2019 дата публикации

COMPRESSOR HAVING IMPROVED DISCHARGE STRUCTURE

Номер: US20190010945A1
Автор: Choi Yong Kyu, Kim Cheol Hwan, Lee Howon
Принадлежит:

A scroll compressor is provided, that may include a connection groove to reduce discharge resistance. The scroll compressor may include a fixed scroll including a fixed end plate and a feed wrap and an orbiting scroll, rotating with respect to the fixed scroll and including an orbiting end plate and an orbiting wrap, and structure in which a connection groove having a concave groove shape provided at an inner surface of the fixed end plate to allow a refrigerant to flow through the connection groove depending on an overlapping state of the fixed wrap and the connection groove, thereby providing an effect of increasing opening efficiency of discharge holes at a beginning of discharge. 1. A scroll compressor , comprising:a fixed scroll including a fixed end plate and a fixed wrap; and a first compression chamber is formed between an outer surface of the fixed wrap and an inner surface of the orbiting wrap;', 'a second compression chamber is formed between an inner surface of the fixed wrap and an outer surface of the orbiting wrap;', 'the fixed end plate of the fixed scroll includes a first discharge inlet configured to discharge a refrigerant compressed in the first compression chamber and a second discharge inlet configured to discharge a refrigerant compressed in the second compression chamber;', 'a communication groove that connects the first discharge inlet and the second discharge inlet, and having a form of a recessed groove is formed in an inner surface of the fixed end plate; and', 'a refrigerant flows through the communication groove according to a state in which the orbiting wrap overlaps the communication groove., 'an orbiting scroll including an orbiting end plate and an orbiting wrap and configured to perform an orbiting movement about the fixed scroll, wherein;'}2. The scroll compressor of claim 1 , wherein the fixed end plate of the fixed scroll includes a discharge outlet at a position overlapping with any one of the first discharge inlet or the ...

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Номер записи: 48
09-01-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200011328A1
Автор: UEKAWA Takashi
Принадлежит:

A scroll compressor includes a fixed scroll fixed inside a housing, an orbiting scroll configured to orbit engaged with the fixed scroll, a rotary shaft configured to allow the orbiting scroll to orbit by supporting the orbiting scroll with an eccentric shaft eccentric from a main shaft, and a slide bush portion installed between a bearing of the orbiting scroll and the eccentric shaft and according to a rotational speed of the rotary shaft, configured to change a pressing force of the orbiting scroll applied to the fixed scroll by allowing an eccentricity to be changed by a gas load applied to the orbiting scroll. 1. A scroll compressor comprising:a fixed scroll fixed inside a housing;an orbiting scroll configured to orbit and be engaged with the fixed scroll;a rotary shaft configured to allow the orbiting scroll to orbit the orbiting scroll on an eccentric shaft eccentric from a main shaft; anda slide bush portion that is installed between a bearing of the orbiting scroll and the eccentric shaft and, according to a rotational speed of the rotary shaft, configured to change a pressing force of the orbiting scroll applied to the fixed scroll by allowing an eccentricity to be changed by a gas load applied to the orbiting scroll.2. The scroll compressor of claim 1 , wherein:the slide bush portion suppresses a pressing force of the orbiting scroll applied to the fixed scroll based on the rotary shaft being rotated at a high rotational speed; andthe orbiting scroll compresses the fixed scroll based on the rotary shaft being rotated at a low rotational speed.3. The scroll compressor of claim 2 , wherein the slide bush portion suppresses the pressing force of the orbiting scroll applied to the fixed scroll by suppressing the eccentricity of the orbiting scroll from the main shaft.4. The scroll compressor of claim 1 , wherein the slide bush portion comprises:a slide bush inserted and coupled to the bearing of the orbiting scroll; andan inner bush installed between the ...

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Номер записи: 49
03-02-2022 дата публикации

COMPRESSOR HAVING SHELL FITTING

Номер: US20220034316A1
Автор: Bingham Larry L., REINHART KEITH J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor includes a shell, a compression mechanism and a fitting. The shell includes an opening and defines a chamber. The compression mechanism is disposed within the chamber of the shell. The fitting is attached to the shell at the opening. Working fluid flowing through the fitting flows to the compression mechanism. The opening is partially defined by a first edge and a second edge. The first edge includes a first planar surface and the second edge includes a second planar surface that faces the first planar surface. A first portion of the fitting extends at least partially into the opening and a second portion of the fitting abuts against the first and second edges. 1. A compressor comprising:a shell including an opening and defining a chamber;a compression assembly disposed within the chamber of the shell; anda fitting attached to the shell at the opening, working fluid flowing through the fitting flows to the compression assembly,wherein the opening is partially defined by a first edge and a second edge, the first edge includes a first planar surface and the second edge includes a second planar surface that faces the first planar surface, a first portion of the fitting extends at least partially into the opening and a second portion of the fitting abuts against the first and second edges.2. The compressor of claim 1 , wherein the opening is a non-circular shape.3. The compressor of claim 1 , wherein the opening has opposing arcuate surfaces claim 1 , and wherein an outer diametrical surface of the fitting abuts against at least one of the opposing arcuate surfaces.4. The compressor of claim 3 , wherein the opposing arcuate surfaces and the first and second edges cooperate to define a circular shape.5. The compressor of claim 1 , wherein the fitting is a suction fitting claim 1 , and wherein working fluid flowing through the suction fitting flows to the compression assembly.6. The compressor of claim 1 , wherein the first portion of the fitting is a first ...

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Номер записи: 50
03-02-2022 дата публикации

Compressor Having Capacity Modulation

Номер: US20220034317A1
Автор: Burton Joseph B., EYINK Robert V., MCBEAN James W., MOORE Phillip M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a shell assembly, a first scroll, a second scroll, a piston, and a piston-retention member. The piston engages the first scroll and may be partially received within a recess defined by the shell assembly. The piston and the shell assembly may cooperate to define a pressure chamber. The pressure chamber may be in selective fluid communication with a source of working fluid to control movement of the piston relative to the shell assembly. The piston-retention member may be mounted to the piston and selectively engage a rotationally fixed structure. The piston-retention member allows rotation of the piston relative to the first scroll in a first rotational direction and restricts rotation of the piston relative to the first scroll in a second rotational direction. 1. A compressor comprising:a shell assembly defining a discharge chamber;a first scroll disposed within the shell assembly and including a first end plate and a first spiral wrap extending from the first end plate;a second scroll disposed within the shell assembly and including a second end plate and a second spiral wrap extending from the second end plate, the first and second spiral wraps meshing;a piston engaging the first scroll and cooperating with the shell assembly to define a pressure chamber therebetween, wherein the pressure chamber is in selective fluid communication with a first source of working fluid to control movement of the piston relative to the shell assembly; anda piston-retention member mounted to the piston and selectively engaging a rotationally fixed structure, wherein the piston-retention member allows rotation of the piston relative to the first scroll in a first rotational direction and restricts rotation of the piston relative to the first scroll in a second rotational direction that is opposite the first rotational direction.2. The compressor of claim 1 , wherein a spring engages the piston-retention member and the piston claim 1 , and wherein the spring ...

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Номер записи: 51
03-02-2022 дата публикации

SEALING STRUCTURE AND SCROLL AIR COMPRESSOR HAVING SAME

Номер: US20220034322A1
Автор: Chen Xiaoxiao, Guo Xiaoqing, Li Yelin, SHI ZHENGLIANG, WEI Huijun
Принадлежит:

Disclosed are a sealing structure and a scroll air compressor having the same. The sealing structure includes: an orbiting scroll including an orbiting scroll spiral tooth (), the orbiting scroll spiral tooth () being provided with an orbiting scroll spiral tooth groove (), an orbiting scroll wear-resistant sealing strip () being provided in the orbiting scroll spiral tooth groove (); a stationary scroll including a stationary scroll spiral tooth () matched with the orbiting scroll spiral tooth (), the stationary scroll spiral tooth () being provided with a stationary scroll spiral tooth groove (), a stationary scroll wear-resistant sealing strip () is provided in the stationary scroll spiral tooth groove (), the wear-resistant sealing strip () is divided into sections including a high-temperature and high-pressure section () and a medium-temperature and medium-pressure section (). The sealing structure reduces costs of use and maintenance of the sealing strip; a buffer contact surface of the wear-resistant sealing strip () in contact with a scroll surface is flat, which improves performances of sealing and noise-reduction; a bottom surface of the wear-resistant sealing strip () is equipped with a sealing ring having a cross section in a shape of a circle or a circular tube, which improves the damping and buffering performances; thereby the performance of the air compressor is improved, and the use cost of the air compressor is also reduced. 1. A sealing structure , comprising:an orbiting scroll comprising an orbiting scroll spiral tooth, wherein the orbiting scroll spiral tooth is provided with an orbiting scroll spiral tooth groove, an orbiting scroll wear-resistant sealing strip is provided in the orbiting scroll spiral tooth groove, the orbiting scroll wear-resistant sealing strip comprises the orbiting scroll wear-resistant sealing strip in a high-temperature and high-pressure section and the orbiting scroll wear-resistant sealing strip in a medium-temperature ...

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Номер записи: 52
03-02-2022 дата публикации

SCROLL COMPRESSOR

Номер: US20220034557A1
Автор: Choi Jungsun, Lee Kangwook, LEE Kyungho
Принадлежит:

A scroll compressor includes a refrigerant suction pipe coupled to a discharge cover or a fixed scroll through a casing in a radial direction, a suction passage communicating the refrigerant suction pipe with a compression chamber, and a suction passage opening and closing valve disposed inside the suction passage to be slidable in an axial direction so as to selectively open or close the suction passage. Accordingly, when the compressor is stopped, oil or refrigerant in the casing can be restricted quickly so as not to flow back to the refrigerant suction pipe through a compression unit. 1. A scroll compressor comprising:a casing;a main frame provided in the casing;a fixed scroll having (i) a fixed end plate coupled to the main frame, (ii) a fixed wrap defined at a first side surface of the fixed end plate, and (iii) a discharge port defined through the fixed end plate at a side of the fixed wrap;an orbiting scroll having (i) an orbiting end plate located between the main frame and the fixed scroll, and (ii) an orbiting wrap defined at a side surface of the orbiting end plate, the orbiting wrap being configured to engage with the fixed wrap to thereby define a compression chamber in engagement with the fixed wrap;a discharge cover defining a discharge space that accommodates an outlet of the discharge port, the discharge cover being coupled to a second side surface of the fixed end plate opposite to the first side surface of the fixed end plate;a refrigerant suction pipe coupled to the discharge cover or the fixed scroll through the casing in a radial direction;a suction passage in fluid communication with the refrigerant suction pipe and the compression chamber; anda suction passage opening and closing valve provided inside the suction passage and configured to slide in an axial direction to thereby selectively open or close the suction passage.2. The scroll compressor of claim 1 , wherein the refrigerant suction pipe is coupled to the discharge cover or the fixed ...

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Номер записи: 53
21-01-2016 дата публикации

SNAP-IN TEMPERATURE SENSOR FOR SCROLL COMPRESSOR

Номер: US20160017886A1
Автор: Avary Stephen, Cargile William, Hahn Gregory W., Milliff Tracy
Принадлежит:

A temperature sensor on an outer surface of an upper shell at a location is associated with a discharge chamber. The temperature sensor includes electronics molded into an overmolded plastic and includes a spring member. The spring member snaps into a sensor housing connected to the outer surface. 1. A scroll compressor comprising:a housing including a cylindrical lower portion and an upper cover, said upper cover having an outer surface;a scroll compressor pump unit including a first scroll member having a base and a generally spiral wrap extending from its base, and a second scroll member having a base and a generally spiral wrap extending from its base, said wraps of said first and second scroll members interfitting to define a compression chamber, and said first scroll member having a discharge port;an electric motor for driving a drive shaft to rotate and, in turn, cause said second scroll member to orbit relative to said first said scroll member to decrease a volume of said compression chambers such that a refrigerant is entrapped and is driven to communicate with said discharge port;a discharge chamber defined inwardly of said upper cover and communicating with said discharge port; anda temperature sensor connected to said outer surface at a location associated with said discharge chamber, said temperature sensor including a spring member, said spring member snapping into a sensor housing connected to said outer surface.2. The scroll compressor as set forth in claim 1 , wherein said sensor housing and said spring member are metallic.3. The scroll compressor as set forth in claim 1 , wherein said sensor housing has a front opening for receipt of said sensor and such that said sensor can be inserted and removed from said front opening.4. The scroll compressor as set forth in claim 1 , wherein said sensor includes an electronic component in contact with said outer surface.5. The scroll compressor as set forth in claim 4 , wherein said electronic component is a ...

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Номер записи: 54
18-01-2018 дата публикации

SCROLL COMPRESSOR

Номер: US20180017055A1
Автор: MYOGAHARA Masashi, NAGAOKA Fumikazu, NARUMI Keisuke, TSURUOKA Yosuke
Принадлежит:

A scroll compressor includes a first chamfered portion formed at a distal end potion of a spiral blade of a fixed scroll, a second chamfered portion formed at a distal end portion of a spiral blade of an orbiting scroll, a third chamfered portion formed at a bottom portion of the spiral blade of the fixed scroll, and a fourth chamfered portion formed at a bottom portion of the spiral blade of the orbiting scroll. An expression of 0<{(Av+Av)/2}/Ac<1×10is satisfied where a sectional area of a space between the first chamfered portion and the fourth chamfered portion is defined as Av, a sectional area of a space between the second chamfered portion and the third chamfered portion is defined as Av, and a sectional area of a compression chamber is defined as Ac. 1. A scroll compressor , comprising:a fixed scroll including a first base plate portion and a first spiral blade provided to stand on one surface of the first base plate portion;an orbiting scroll including a second base plate portion and a second spiral blade provided to stand on a surface of the second base plate portion opposite to the fixed scroll, and is configured to perform an orbiting motion with respect to the fixed scroll, the first spiral blade and the second spiral blade being in mesh with each other to form a compression chamber;a first chamfered portion formed at each of both corner portions of a distal end portion of the first spiral blade;a second chamfered portion formed at each of both corner portions of a distal end portion of the second spiral blade;a third chamfered portion formed on each of both sides of a bottom portion of the first spiral blade, the third chamfered portion having a same shape as a shape of the second chamfered portion; anda fourth chamfered portion formed on each of both sides of a bottom portion of the second spiral blade, the fourth chamfered portion having a same shape as a shape of the first chamfered portion,a chamfer dimension of the first chamfered portion and a ...

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Номер записи: 55
18-01-2018 дата публикации

CYLINDER-ROTATION-TYPE COMPRESSOR

Номер: US20180017056A1
Автор: MURASE Yoshinori, Ogawa Hiroshi, Ohno Yuichi
Принадлежит:

A primary groove, into which a primary vane is slidably fitted, and a primary rotor-side suction passage, which conducts refrigerant of a shaft-side suction passage of a shaft to a primary compression chamber, are formed at a primary rotor. The primary groove is shaped into a form that extends from an inner peripheral side toward an outer peripheral side and extends toward a rear side with respect to a rotational direction, and the primary rotor-side suction passage is shaped into a form that extends from the inner peripheral side toward the outer peripheral side and extends and tilts toward a front side with respect to the rotational direction. A fluid outlet of the primary rotor-side suction passage opens at a location that is immediately after the primary groove on the rear side of the primary groove with respect to the rotational direction. 1. A cylinder-rotation-type compressor comprising:a cylinder that is shaped into a cylindrical tubular form and is rotatable about a central axis;a rotor that is shaped into a cylindrical tubular form and is placed in an inside of the cylinder, wherein the rotor is rotatable about an eccentric axis, which is eccentric to the central axis of the cylinder;a shaft that rotatably supports the rotor; anda vane that is shaped into a plate form and is slidably inserted into a groove formed in the rotor, while the vane partitions a compression chamber that is formed between an outer peripheral surface of the rotor and an inner peripheral surface of the cylinder, wherein:the cylinder and the rotor are synchronously rotatable;when the rotor is rotated, the vane is displaced such that an outer-peripheral-side end portion of the vane contacts the inner peripheral surface of the cylinder;a shaft-side suction passage, which conducts compression-subject fluid received from an outside, is formed in an inside of the shaft;a rotor-side suction passage, which conducts the compression-subject fluid outputted from the shaft-side suction passage ...

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Номер записи: 56
18-01-2018 дата публикации

ROTARY COMPRESSOR

Номер: US20180017057A1
Автор: FURUKAWA Motonobu, IZUMI Yasuyuki, Katayama Hiroki, MORISHITA Taku, MOROZUMI Naoya
Принадлежит:

In a rotary compressor, a lower end plate cover is formed in a shape of a flat plate, and has a through hole that is provided to penetrate in the thickness direction of the lower end plate cover and that communicates with a communication groove. When a sectional area of the communication groove which passes through a center line of a rotation shaft, and is on a section along the rotation shaft direction is S1 [mm], an area in which the through hole and the communication groove overlap each other on a plane orthogonal to the rotation shaft is S2 [mm], and an excluding capacity of a lower cylinder chamber is V [cc], each of 0.10≦(S2/V)≦0.50, and 1.0≦(S2/S1)≦7.0 is satisfied. 1. A rotary compressor comprising:a sealed vertically-placed cylindrical compressor housing in which a discharging unit of a refrigerant is provided in an upper portion, and an inlet unit of the refrigerant is provided in a lower portion;a compressing unit which is disposed in the lower portion of the compressor housing, and which compresses the refrigerant suctioned from the inlet unit, and which discharges the refrigerant from the discharging unit anda motor which is disposed in the upper portion of the compressor housing, and which drives the compressing unit, an annular upper cylinder and an annular lower cylinder,', 'an upper end plate which closes an upper side of the upper cylinder,', 'a lower end plate which closes a lower side of the lower cylinder,', 'an intermediate partition plate which is disposed between the upper cylinder and the lower cylinder, and which closes the lower side of the upper cylinder and the upper side of the lower cylinder,', 'a rotation shaft which is rotated by the motor,', 'an upper eccentric portion and a lower eccentric portion which are provided in the rotation shaft by applying a phase difference of 180° therebetween,', 'an upper piston which is fitted to the upper eccentric portion, and which revolves along an inner circumferential surface of the upper ...

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Номер записи: 57
17-01-2019 дата публикации

SCROLL COMPRESSOR

Номер: US20190017506A1
Автор: Yamada Masahiro
Принадлежит:

A scroll compressor includes a housing, an Oldham ring slidable on the housing by a first key mechanism, a fixed scroll, and an orbiting scroll slidable on the Oldham ring by a second key mechanism. The first key mechanism includes a first key provided to the Oldham ring and a first key groove formed in the housing. The first key protrudes toward the housing and radially inwardly from a ring portion. The housing includes a flange with a facing portion. The fixed scroll is fixed to the flange. The facing portion has an orbiting scroll facing surface, and an annular opening formed around the orbiting scroll facing surface and movably housing the ring portion. The first key groove is formed adjacent to a back surface of the facing portion opposite to the orbiting scroll facing surface so as to extend radially inwardly from the annular opening. 1. A scroll compressor comprising:a housing into which a drive shaft is inserted;an Oldham ring configured to be slidable on the housing by a first key mechanism in a first direction perpendicular to an axial center of the drive shaft;a fixed scroll fixed to the housing; andan orbiting scroll meshing with the fixed scroll and configured to be slidable on the Oldham ring by a second key mechanism in a second direction perpendicular to the axial center of the drive shaft,the first key mechanism including a first key provided to the Oldham ring and a first key groove formed in the housing,the first key protrudes from a ring portion of the Oldham ring toward the housing, and further protrudes in a radially inward direction from the ring portion, an orbiting scroll facing surface facing the orbiting scroll, and', 'an annular opening formed around the orbiting scroll facing surface and movably housing the ring portion, and, 'the housing including a flange to which the fixed scroll is fixed and which includes a facing portion having a predetermined thickness and having'}the first key groove being formed at a position adjacent to a back ...

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Номер записи: 58
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: 59
21-01-2021 дата публикации

ELECTRIC COMPRESSOR

Номер: US20210017992A1
Автор: JANG Jinyong, PARK Honghee, PARK JUNGHOON, SEO Bunjune
Принадлежит: LG ELECTRONICS INC.

The present disclosure relates to an electrical compressor, comprising a housing, a compression part, a motor part, a first journal bearing coupled between a frame and a rotating shaft, a second journal bearing coupled between an eccentric part and an orbit scroll, and a ball bearing coupled to another end of the rotating shaft. The compression part comprises a fixed scroll disposed at an internal side of the housing, an orbit scroll configured to compress a refrigerant while orbiting the fixed scroll, and a frame configured to support the fixed scroll. The motor part comprises a rotating shaft comprising an eccentric part coupled to the orbit scroll at one end thereof, a stator disposed at another internal side of the housing, and a rotor rotatably disposed with respect to the stator and configured to rotate around the rotating shaft. 1. An electric compressor , comprising:a housing; a fixed scroll and disposed at an internal side of the housing,', 'an orbit scroll configured to compress a refrigerant while orbiting the fixed scroll, and', 'a frame configured to support the fixed scroll;, 'a compression part comprising a rotating shaft comprising an eccentric part coupled to the orbit scroll at one end thereof,', 'a stator disposed at another internal side of the housing, and', 'a rotor rotatably disposed with respect to the stator and configured to rotate around the rotating shaft;, 'a motor part comprisinga first journal bearing coupled between the frame and the rotating shaft;a second journal bearing coupled between the eccentric part and the orbit scroll; anda ball bearing coupled to another end of the rotating shaft.2. The electric compressor of claim 1 , further comprisinga ball bearing coupling part,wherein the ball bearing is press-fitted and coupled to the ball bearing coupling part.3. The electric compressor of claim 2 , wherein the rotating shaft is coupled to the ball bearing while the ball bearing is coupled inside the ball bearing coupling part claim ...

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Номер записи: 60
21-01-2021 дата публикации

SCROLL COMPRESSOR

Номер: US20210017994A1
Автор: UEKAWA Takashi
Принадлежит:

A scroll compressor including an orbiting scroll having a small diameter compared to a case in which an oil groove is provided in a ring shape and constantly communicates with an outlet of an oil passage. The scroll compressor includes a fixed scroll and an orbiting scroll configured to orbit in engagement with the fixed scroll. The fixed scroll includes an outlet of an oil passage configured to communicate with an oil tray storing lubricant, the outlet of the oil passage connected to a sliding surface of the orbiting scroll. The orbiting scroll includes a plurality of oil grooves configured not to communicate with each other so as to supply the lubricant to a sliding surface of the fixed scroll, the plurality of oil grooves configured to communicate with the outlet at least once and not to communicate with the outlet at least once while the orbiting scroll rotates once. 1. A scroll compressor comprising:a fixed scroll fixed to an inside of a main body; andan orbiting scroll configured to orbit in engagement with the fixed scroll;wherein the fixed scroll comprises an outlet of an oil passage configured to communicate with an oil tray configured to store a lubricant, the outlet of the oil passage connected to a sliding surface of the orbiting scroll,wherein the orbiting scroll comprises a plurality of oil grooves, each of the plurality of oil grooves configured to supply the lubricant to a sliding surface of the fixed scroll and to not communicate with another of the plurality of oil grooves, andwherein each of the plurality of oil grooves is configured to communicate with the outlet at least once and to not communicate with the outlet at least once while the orbiting scroll rotates once.2. The scroll compressor of claim 1 , wherein each of the plurality of oil grooves is sealed by a sliding surface of the fixed scroll and the sliding surface of the orbiting scroll while in communication with the outlet.3. The scroll compressor of claim 1 , wherein claim 1 , among ...

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Номер записи: 61
16-01-2020 дата публикации

Scroll-type compressor

Номер: US20200018310A1
Автор: Hirofumi Hirata, Keita KITAGUCHI, Makoto Takeuchi, Takahide Ito, Takuma YAMASHITA
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a pin-ring mechanism (26) that supports a driving-side scroll member and a driven-side scroll member such that the driving-side scroll member and the driven-side scroll member are in relative revolving motion. The pin-ring mechanism (26) includes: a pin member (30); a ring member (34) that has an inner ring (34b) which comes into contact with the pin member (30), a plurality of balls (34c) which roll on the inner ring (34b), and a retainer (34d); and a bush 36 that is disposed on an inner periphery of the inner ring (34b), and receives a component of force in a circumferential direction of the inner ring (34b) from the pin member (30) to rotate together with the inner ring (34b).

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Номер записи: 62
16-01-2020 дата публикации

SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS

Номер: US20200018311A1
Автор: IWATAKE Wataru, KAWAMURA Raito, Sasaki Kei, Sekiya Shin
Принадлежит: Mitsubishi Electric Corporation

A first injection port is open to a suction chamber of a plurality of chambers at some rotation phases, and is located within an angular range defined by a line connecting a winding-end contact point of an orbiting scroll at a compression start phase with a base circle center of a fixed scroll and one of two lines tangent to a winding-end point locus of a tip seal at a tooth tip of a spiral body of the orbiting scroll and passing through a base circle center of the orbiting scroll, the one being closer to the winding-end contact point. The first injection port does not interfere with the tip seal at the tooth tip of the spiral body of the orbiting scroll. 1: A scroll compressor comprising:a hermetic container;a compression mechanism disposed in the hermetic container and including a fixed scroll and an orbiting scroll each including a spiral body disposed on a baseplate, the spiral body of the fixed scroll and the spiral body of the orbiting scroll being combined together to form a plurality of chambers including a compression chamber;a motor mechanism configured to drive the orbiting scroll; anda rotation shaft coupled to the orbiting scroll, with the orbiting scroll being eccentric from the motor mechanism, the rotation shaft being configured to transmit torque of the motor mechanism to the orbiting scroll to cause the orbiting scroll to orbit,wherein a tooth tip of the spiral body of the orbiting scroll has a tip seal;the baseplate of the fixed scroll has a first injection port intermittently opened and closed by the tooth tip of the spiral body of the orbiting scroll as the orbiting scroll orbits; andthe first injection port is open to a suction chamber of the plurality of chambers at some rotation phases, and is located within an angular range defined by a line connecting a winding-end contact point of the orbiting scroll at a compression start phase with a base circle center of the fixed scroll and one of two lines tangent to a winding-end point locus of the ...

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Номер записи: 63
22-01-2015 дата публикации

Scroll-Type Expander And Fluid Machine Provided With Same

Номер: US20150023824A1
Автор: Hirofumi Wada, Shinji Nakamura, Yuuta Tanaka
Принадлежит: Sanden Corp

To provide a scroll-type expander having a relatively simple structure, small energy loss, and high durability and reliability. A pump-integrated expander 27 includes an expansion unit 50 configured as a scroll-type expander. In the expansion unit 50, a working fluid passage 51 e extending from a suction port 51 c open to the outside to an inlet 51 d open to an expansion chamber 54 is formed in a base 51 a of a fixed scroll 51. A working fluid supplied from the outside is guided to the expansion chamber 54 by the working fluid passage 51 e. In order to receive a thrust force acting on an orbiting scroll 53 and to prevent the rotation of the orbiting scroll 53, a ball-coupling anti-rotation mechanism 56 using balls as rolling members is disposed between a stepped face 52 c of an expander housing 52 and a base 53 a of the orbiting scroll 53.

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Номер записи: 64
28-01-2016 дата публикации

COMPRESSOR WITH CAPACITY MODULATION AND VARIABLE VOLUME RATIO

Номер: US20160025093A1
Автор: DOEPKER Roy J.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a shell assembly defining a suction pressure region and a discharge pressure region. A first scroll member may include a first discharge port and a first modulation port. A second scroll member may include a first variable volume ratio port. A capacity modulation valve assembly may be in fluid communication with the first modulation port and may be displaceable between open and closed positions to selectively provide communication between a first intermediate compression pocket and the suction pressure region via the first modulation port. A variable volume ratio valve assembly may be in fluid communication with the first variable volume ratio port. The variable volume ratio valve assembly may be displaceable between open and closed positions to selectively provide communication between a second intermediate compression pocket and the discharge pressure region via the first variable volume ratio port. 1. (canceled)2. A compressor comprising:a shell assembly;a first scroll member disposed within said shell assembly, said first scroll member including a first end plate defining a discharge port and a first port and having a first spiral wrap extending from a first side thereof;a second scroll member disposed within said shell assembly and including a second end plate defining a second port and having a second spiral wrap extending therefrom and meshingly engaged with said first spiral wrap to form a suction-pressure pocket in fluid communication with a suction-pressure region disposed outside of said first and second spiral wraps, intermediate-pressure pockets, and a discharge-pressure pocket in fluid communication with a discharge-pressure region disposed outside of said first and second spiral wraps, a first of said intermediate-pressure pockets being in fluid communication with said first port and a second of said intermediate-pressure pockets being in fluid communication with said second port;a motor assembly driving ...

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Номер записи: 65
28-01-2016 дата публикации

COMPRESSOR MOTOR WITH CENTER STATOR

Номер: US20160025094A1
Автор: IGNATIEV Kirill M., PEREVOZCHIKOV Michael M., SEIBEL Stephen M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor is provided and may include a shell, a compression mechanism, a driveshaft, and a motor assembly. The compression mechanism may be disposed within the shell. The driveshaft is drivingly engaged with the compression mechanism. The motor assembly may be disposed within the shell and drivingly engaged with the driveshaft. The motor assembly may include a rotor, a stator, and a rotor support subassembly. The rotor may be disposed radially outwardly relative to the stator and fixed for rotation with the driveshaft. The rotor support subassembly may include a first support member coupled to the driveshaft and coupled to the rotor such that the driveshaft is operable to rotate with the rotor. 1. A compressor comprising:a shell;a compression mechanism disposed within said shell;a driveshaft rotatably supported by a first bearing and a second bearing and drivingly engaged with said compression mechanism;a bearing housing including a tubular portion in which said first and second bearings are disposed; anda motor assembly disposed within said shell and drivingly engaged with said driveshaft, said motor assembly including a rotor and a stator, said stator engaging an outer diametrical surface of said tubular portion, said rotor disposed radially outwardly relative to said stator and fixed for rotation with said driveshaft.2. The compressor of claim 1 , further comprising a support housing having a first side supporting said compression mechanism claim 1 , wherein said bearing housing is removably mounted to a second side of said support housing.3. The compressor of claim 2 , wherein said bearing housing includes a flange portion integrally formed with said tubular portion claim 2 , and wherein said flange portion is coupled to said support housing.4. The compressor of claim 3 , further comprising a counterweight fixed to said driveshaft between said compression mechanism and said flange portion of said bearing housing claim 3 , wherein said flange portion axially ...

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Номер записи: 66
26-01-2017 дата публикации

POROUS OIL FLOW CONTROLLER

Номер: US20170022984A1
Автор: Bhatia Kanwal, White Steven C.
Принадлежит:

A compressor comprises a housing having a hollow interior for communicating a fluid comprising a mixture of a gas and a lubricant therethrough. The hollow interior of the housing is divided into a low pressure side and a high pressure side. The low pressure side is disposed upstream of compression mechanism and the high pressure side is disposed downstream of the compression mechanism. A porous flow controller fluidly couples the high pressure side to the low pressure side. The porous flow controller is configured to meter a flow of the lubricant from the high pressure side to the low pressure side. 1. A compressor comprising:a housing having a hollow interior for communicating a fluid therethrough, the hollow interior of the housing divided into a low pressure side and a high pressure side; anda porous flow controller fluidly coupling the high pressure side to the low pressure side, wherein the porous flow controller is configured to meter a flow of the fluid from the high pressure side to the low pressure side.2. The compressor of claim 1 , further comprising a compression mechanism claim 1 , wherein the low pressure side is disposed upstream of the compression mechanism in a direction of flow of the fluid and the high pressure side is disposed downstream of the compression mechanism.3. The compressor of claim 1 , wherein an oil separator is disposed in the high pressure side upstream of the porous flow controller in a direction of flow of the fluid.4. The compressor of claim 1 , wherein the fluid comprises a mixture of a gaseous refrigerant and an oil.5. The compressor of claim 4 , wherein a portion of the fluid being metered by the porous flow controller comprises a higher percentage of the oil by volume than the gaseous refrigerant.6. The compressor of claim 4 , wherein the oil flows directly from the high pressure side to the low pressure side through the porous flow controller.7. The compressor of claim 1 , wherein the porous flow controller is formed in one ...

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Номер записи: 67
26-01-2017 дата публикации

UNFASTENED THRUST PLATE

Номер: US20170022989A1
Автор: Beagle Wayne P., Bush James William, Duppert Ronald J.
Принадлежит: Bitzer Kuehlmaschinenbau GmbH

A scroll compressor with unfastened thrust plate includes a compressor housing and scroll compressor bodies disposed in the compressor housing. The scroll bodies include a fixed scroll body and a moveable scroll body. The fixed and moveable scroll bodies have respective bases and respective scroll ribs that project from the respective bases. The scroll ribs mutually engage. The moveable scroll body is movable relative to the fixed scroll body for compressing fluid. An upper bearing member provides axial thrust support to the moveable scroll compressor body through a bearing support via an unfastened thrust plate that is located between the upper bearing member and the moveable scroll body. The unfastened thrust plate has no means of attachment to the upper bearing member or to the moveable scroll body. 1. A scroll compressor with unfastened thrust plate comprising:a compressor housing;scroll compressor bodies disposed in the housing, the scroll bodies including a fixed scroll body and a moveable scroll body, the fixed and moveable scroll bodies having respective bases and respective scroll ribs that project from the respective bases, wherein the scroll ribs mutually engage, the moveable scroll body being movable relative to the fixed scroll body for compressing fluid; andan upper bearing member which provides axial thrust support to the moveable scroll compressor body through a bearing support via a unfastened thrust plate that is located between the upper bearing member and the moveable scroll body, the unfastened thrust plate having no means of attachment to the upper bearing member or to the moveable scroll body.2. The scroll compressor of claim 1 , wherein the unfastened thrust plate is rotationally unconstrained.3. The scroll compressor of claim 1 , wherein the unfastened thrust plate is constrained radially by an upper bearing member.4. The scroll compressor of claim 3 , wherein the unfastened thrust plate is concentrically located within a portion of the ...

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Номер записи: 68
25-01-2018 дата публикации

OLDHAM COUPLING FOR A SCROLL COMPRESSOR

Номер: US20180023393A1
Автор: DUGAST Philippe, ROSSON Yves
Принадлежит:

An Oldham coupling includes an annular ring having a first side and a second side opposite to the first side, a first and a second engaging groove that are diametrically opposed and located on the first side, and a third and a fourth engaging groove that are diametrically opposed and located on the second side. The first and second engaging grooves are configured to be engaged with a first and a second engaging projection provided on a fixed element. The third and fourth engaging grooves are configured to be engaged with a third and a fourth engaging projection provided on an orbiting scroll. The first and third engaging grooves are located in a first angular sector, and the second and fourth engaging grooves are located in a second diametrically opposed angular sector of the annular ring, the first and second angular sectors have an opening angle less than 40°. 1. An Oldham coupling for a scroll compressor , the Oldham coupling being configured to prevent relative rotation of an orbiting scroll and a non-orbiting scroll of the scroll compressor , the Oldham coupling including:an annular ring having a first side and a second side opposite to the first side;a first and a second engaging groove configured to be slidably engaged with a first and a second complementary engaging projection provided on a non-orbiting element, the first and second engaging grooves are diametrically opposed to each other and provided on the first side of the annular ring; wherein the first and third engaging grooves are located in a first angular sector of the annular ring, and the second and fourth engaging grooves are located in a second angular sector of the annular ring, diametrically opposed to the first angular sector, the first and second angular sectors each having an opening angle less than 40°; and', 'wherein a depth of the first engaging groove is less than a depth of the third engaging groove, and a depth of the second engaging groove is less than a depth of the fourth engaging ...

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Номер записи: 69
25-01-2018 дата публикации

Electric compressor

Номер: US20180023568A1
Автор: Eun Seok Kang, Jung Seon Kim, Seung Hwan SHIN, Sung Jun Park, Young Hun Lee
Принадлежит: Hanon Systems Corp

An electric compressor includes a cover. The cover is reinforced by forming straight ribs, ring ribs, connection ribs, or hexagonal ribs having a honeycomb structure. The straight ribs, rings ribs, connection ribs, or hexagonal ribs are formed on the inner side or the outer side of a body of the cover on a side of an inverter.

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Номер записи: 70
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: 71
10-02-2022 дата публикации

COMPRESSOR OIL MANAGEMENT SYSTEM

Номер: US20220042509A1
Автор: LIANG Sheng, NOHALES HERRAIZ Jesus Angel, SU Xiaogeng
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

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

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Номер записи: 72
24-01-2019 дата публикации

Hermetic compressor

Номер: US20190024650A1
Автор: Jeong-Bae Lee, Ki-Chul Song
Принадлежит: SAMSUNG ELECTRONICS CO LTD

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

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Номер записи: 73
24-01-2019 дата публикации

COMPRESSOR HAVING CENTRIFUGATION STRUCTURE FOR SUPPLYING OIL

Номер: US20190024664A1
Автор: Choi Yong Kyu, Kim Cheol Hwan, Lee Byeongchul, Lee Kangwook
Принадлежит:

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

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Номер записи: 74
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: 75
23-01-2020 дата публикации

LOW COST SCROLL COMPRESSOR OR VACUUM PUMP

Номер: US20200025201A1
Автор: Farnham Scott D., Mesward Joshua R.
Принадлежит:

A low cost scroll device and methods of manufacturing the same are described. The scroll device includes, for example, a drive pin hole and bearing bores machined into a scroll of the scroll device from the same side as the involute of the scroll; idler shaft assemblies with no more than one bearing in the orbiting scroll for mechanically coupling the orbiting scroll to the fixed scroll; and an epoxy coating applied using a process that requires assembly of the scroll device only once. 1. A scroll device comprising:a fixed scroll comprising a first side opposite a second side, the first side comprising a first involute and a second side comprising a plurality of cooling fins;an orbiting scroll comprising a second involute, the orbiting scroll mounted to the fixed scroll via a mechanical coupling and configured to orbit relative to the fixed scroll on the mechanical coupling;a motor operably connected to the orbiting scroll; anda cooling fan mounted to the second side of the fixed scroll.2. The scroll device of claim 1 , wherein the mechanical coupling comprises at least one idler shaft assembly claim 1 , the idler shaft assembly comprising a single bearing provided in a first bearing bore of one of the fixed scroll and the orbiting scroll claim 1 , a plurality of bearings provided in a second bearing bore of another of the fixed scroll and the orbiting scroll claim 1 , and an idler shaft supported by the first bearing and the plurality of bearings.3. The scroll device of claim 2 , wherein the first bearing bore is positioned in the orbiting scroll claim 2 , and the second bearing bore is positioned in the fixed scroll.4. The scroll device of claim 3 , further comprising at least two retaining screws positioned to secure the single bearing in the first bearing bore claim 3 , and at least two additional retaining screws positioned to secure the plurality of bearings in the second bearing bore.5. The scroll device of claim 3 , wherein the first bearing bore is machined ...

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Номер записи: 76
23-01-2020 дата публикации

ORBITING SCROLL DEVICE LUBRICATION

Номер: US20200025204A1
Автор: Nicholas Nathan D., Shaffer Bryce R., Wilson John P.D.
Принадлежит:

A scroll device includes a fixed scroll with an idler shaft bearing, an orbiting scroll with another idler shaft bearing; and an eccentric idler shaft having first and second arms extending in opposite directions and ending at first and second ends, the first and second arms supported by the fixed scroll idler shaft bearing and the orbiting scroll idler shaft bearing, respectively. The eccentric idler shaft has a hollow core extending from the first end to the second end, with at least one channel extending through the first arm and enabling fluid communication between the hollow core and the at least one first bearing, and at least one second channel extending through the second arm and enabling fluid communication between the hollow core and the least one second bearing. 1. A scroll device comprising:a fixed scroll comprising at least one first bearing;an orbiting scroll comprising at least one second bearing;an eccentric idler shaft having a first arm terminating at a first end and supported by the at least one first bearing and a second arm terminating at a second end and supported by the least one second bearing, the eccentric idler shaft comprising a hollow core extending from the first end to the second end;at least one first channel extending through the first arm and enabling fluid communication between the hollow core and the at least one first bearing; andat least one second channel extending through the second arm and enabling fluid communication between the hollow core and the least one second bearing.2. The scroll device of claim 1 , further comprising an idler shaft cap secured to the fixed scroll claim 1 , the idler shaft cap defining a central passageway in fluid communication with the hollow core.3. The scroll device of claim 1 , further comprising an orifice plug removably secured within the central passageway.4. The scroll device of claim 1 , further comprising a plug removably secured within the hollow core proximate the second end claim 1 , the ...

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Номер записи: 77
28-01-2021 дата публикации

SCROLL COMPRESSOR

Номер: US20210025395A1
Автор: NAGAHARA Kenji
Принадлежит:

A scroll compressor includes a casing, a low-pressure space and a compression mechanism. The compression mechanism includes fixed and movable scrolls, a fluid chamber including first and second compression chambers, and an adjustment mechanism. The fluid chamber has different discharge start points between the first and second compression chambers. An oil inflow groove is formed in one sliding surface, and an oil relief passage is formed in the other sliding surface. The oil relief passage includes a communication portion that communicates with the oil inflow groove in a predetermined angular range, lubricating oil flowing from the oil inflow groove into the low-pressure space through the communication portion. The predetermined angular range is from a position between a discharge start point of the first compression chamber and a discharge start point of the second compression chamber to a position after the discharge start of the second compression chamber. 1. A scroll compressor comprising:a casing;a low-pressure space inside the casing; and a fixed scroll including a fixed-side end plate having a disk shape, and a fixed-side wrap having a spiral shape and rising from the fixed-side end plate, the fixed scroll being fixed to the casing,', 'a movable scroll including a movable-side end plate having a disk shape that substantially slides on the fixed-side end plate, and a movable-side wrap having a spiral shape that rises from the movable-side end plate and has a different circumferential length from the fixed-side wrap, the movable scroll being configured to make an eccentric rotational motion with respect to the fixed scroll while meshing with the fixed scroll,', 'a fluid chamber including a first compression chamber formed between an inner peripheral surface of the fixed-side wrap and an outer peripheral surface of the movable-side wrap, and a second compression chamber formed between an outer peripheral surface of the fixed-side wrap and an inner peripheral ...

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Номер записи: 78
02-02-2017 дата публикации

Compressor With Thermally-Responsive Modulation System

Номер: US20170030354A1
Автор: Robert C. Stover
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a first scroll, a second scroll and a modulation system. The first scroll may include a first endplate and a first spiral wrap. The second scroll may include a second endplate and a second spiral wrap interleaved with the first spiral wrap and cooperating to form a plurality of working fluid pockets therebetween. The modulation system may include a temperature-responsive displacement member that actuates in response to a temperature within a space rising above a predetermined threshold. Actuation of the displacement member may be controlled to control a capacity of the compressor.

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Номер записи: 79
02-02-2017 дата публикации

Compressor and air conditioner

Номер: US20170030355A1
Автор: HU Yusheng, Huang Hui, LIANG Shebing, LUO Huifang, Ren Liping, WEI Huijun, Wu Jian, XU Jia, YANG Ouxiang, Zhu Hongwei
Принадлежит:

The invention discloses a compressor. The compressor includes a first primary cylinder, a second primary cylinder and a secondary cylinder, which are stacked, a separator is provided between two adjacent cylinders. The first primary cylinder is provided with a first air entry, the second primary cylinder is provided with a second air entry, and the secondary cylinder is provided with an air outlet. The first primary cylinder and the second primary cylinder are connected in serial to the secondary cylinder after being connected in parallel. A refrigerant entering the first air entry and the second air entry is discharged from the air outlet after primary or/and secondary compression. The two separators are divided into a first separator and a second separator. Any one or two of the first separator, the second separator and a lower flange may be provided with a slide piece control device. 1. A compressor , comprising:a first primary cylinder, a second primary cylinder, a secondary cylinder and a lower flange, wherein the first primary cylinder, the second primary cylinder and the secondary cylinder are stacked, a separator is provided between two adjacent cylinders, the secondary cylinder is provided at the same side of the first primary cylinder and the second primary cylinder, or the secondary cylinder is provided between the first primary cylinder and the second primary cylinder, and the lower flange is provided at the lower sides of the first primary cylinder, the second primary cylinder and the secondary cylinder;the first primary cylinder is provided with a first air entry and a first slide piece groove, a first slide piece is provided in the first slide piece groove, the second primary cylinder is provided with a second air entry and a second slide piece groove, a second slide piece is provided in the second slide piece groove, the secondary cylinder is provided with an air outlet and a third slide piece groove, and a third slide piece is provided in the third ...

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Номер записи: 80
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: 81
04-02-2016 дата публикации

REVOLVING PISTON ROTARY COMPRESSOR WITH STATIONARY CRANKSHAFT

Номер: US20160032925A1
Автор: Dreiman Nelik I.
Принадлежит:

A revolving piston rotary compressor comprises, in combination, the following: a compressor pump; an internal suction gas delivery system which eliminates an external accumulator, excludes a direct distribution of a refrigerant to the suction chamber and performs double-stage liquid-gas separation to prevent slugging, provides cooling of the motor and supercharges refrigerant into suction chamber due to action of an impeller; a discharge system utilizing a tubular discharge valve, a circular expansion cavity equipped with a plurality of reaction nozzles through which the discharge gas is jets ejected rearwards relatively to the intended direction of the revolving piston assembly rotation, said jets that impart driving moment which supplements the main momentum; a lubricating oil delivery system employing a positive displacement oil pump, an oil reservoir formed in the crankshaft and a plurality of oil accumulated annular pockets which prevent formation of “gas lock” condition and accelerate delivery of oil to the bearing and mating surfaces, said oil which will not only lubricate, but will also prevents leakage through the clearances by providing liquid seal with combine pressure-discharge pressure, pumping pressure and pressure developed due to centrifugal forces. An external rotor electric motor of the compressor has been integrated with a pump parts to form the compressor pump arranged on a stationary crankshaft and surrounding by a housing fixed to opposite ends of the crankshaft and having no another contacts with the pump. A stator of the motor is permanently fixed on the stationary crankshaft and the compressor pump components—a rotor block and an eccentrically fit revolving piston assembly are unidirectional spinning around the crankshaft. The rotor block and the revolving piston assembly have no radial clearance internal line contact through which the rotor block transfers an angular moment to the revolving piston assembly. It is not only supplements main ...

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Номер записи: 82
31-01-2019 дата публикации

TWIST-LOCK, BOLTLESS FIXED SCROLL-TO-FRAME JOINT

Номер: US20190032658A1
Автор: Crum Daniel R., JR. Joseph E., Mlsna Eric S., Ziolkowski
Принадлежит:

A scroll compressor and methods of assembling the scroll compressor are disclosed. The scroll compressor includes a frame aligned about a longitudinal axis of the scroll compressor, the frame including a plurality of extensions extending radially from the longitudinal axis, the plurality of extensions including axially extending frame interlock mechanisms. A fixed scroll support is aligned about the longitudinal axis, the fixed scroll support including a plurality of extensions extending radially from the longitudinal axis, the plurality of extensions including axially extending fixed scroll support interlock mechanisms configured to engage the frame interlock mechanisms upon radial rotation. A fixed scroll wrap is integral with or attached to the fixed scroll support. 1. A scroll compressor , comprising:a shell;a frame aligned about a longitudinal axis of the scroll compressor, the frame being fitted into the shell;a fixed scroll having a fixed scroll wrap and a fixed scroll support, wherein the fixed scroll support is aligned about the longitudinal axis and is secured to the frame in a boltless connection; andan intermediate cap engaging with a surface of the fixed scroll support on an opposite side of the fixed scroll wrap, the intermediate cap being secured to the shell and contacting an annular region of the fixed scroll support to bias the fixed scroll against the frame.2. The scroll compressor of claim 1 , wherein the frame includes a plurality of extensions extending radially from the longitudinal axis claim 1 , the plurality of extensions including axially extending frame interlock mechanisms; andthe fixed scroll support includes a plurality of extensions extending radially from the longitudinal axis, the plurality of extensions including axially extending fixed scroll support interlock mechanisms configured to engage the frame interlock mechanisms upon radial rotation.3. The scroll compressor of claim 2 , wherein at least one of the plurality of frame ...

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Номер записи: 83
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: 84
31-01-2019 дата публикации

SCROLL COMPRESSOR SHAFT

Номер: US20190032664A1
Автор: BENCO Michael G., Crum Daniel R., Hansen George, Raymond Kenneth Andrew
Принадлежит:

A crankshaft assembly for a scroll compressor is disclosed. The crankshaft assembly includes a crankpin having a plurality of apertures therethrough. A crankshaft body has an aperture therethrough. The aperture of the crankshaft and one of the plurality of apertures of the crankpin being aligned when in an assembled state such that in operation fluid flows between the aperture of the crankshaft body and the one of the plurality of apertures of the crankpin. The crankshaft body includes a second aperture aligned with a second of the plurality of apertures of the crankpin. The crankpin and the crankshaft body are separate members. A fastener extends through the second of the plurality of apertures of the crankpin and into the second aperture of the crankshaft body to secure the crankpin and the crankshaft body together in the assembled state. 1. A crankshaft assembly for a scroll compressor , comprising:a crankpin having a plurality of apertures therethrough;a crankshaft body having an aperture therethrough, the aperture of the crankshaft and one of the plurality of apertures of the crankpin being aligned when in an assembled state such that in operation fluid flows from the aperture of the crankshaft body and the one of the plurality of apertures of the crankpin, the crankshaft body including a second aperture, the second aperture of the crankshaft body being aligned with a second of the plurality of apertures of the crankpin, wherein the crankpin and the crankshaft body are separate members; anda fastener, extending through the second of the plurality of apertures of the crankpin and into the second aperture of the crankshaft body to secure the crankpin and the crankshaft body together in the assembled state.2. The crankshaft assembly according to claim 1 , further comprising a plurality of aligning members and a plurality of alignment apertures in the crankpin and the crankshaft body to align the crankpin and the crankshaft body when assembling the crankshaft ...

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Номер записи: 85
30-01-2020 дата публикации

MOTOR-OPERATED COMPRESSOR

Номер: US20200032795A1
Автор: CHOI Yicheol, KIM JOOHYUNG, NAM Sanghoon, PARK Taesang
Принадлежит: LG ELECTRONICS INC.

An electric compressor includes a main housing including a motor chamber. The motor chamber includes a driving motor. The compressor includes a frame fixed to one end of the main housing, a first scroll supported by one side surface of the frame, and a second scroll provided between the frame and the first scroll. The second scroll, supported by the frame, makes an orbiting motion upon receiving a rotational force from the driving motor. The second scroll also forms a compression chamber with the first scroll and a back pressure space with the frame. A rear cover coupled to the main housing forms a discharge space with the first scroll. A back pressure flow channel extends through the first scroll and the frame to guide a refrigerant and oil from the compression chamber to the discharge and back pressure spaces. The compressor also includes a plurality of decompression portions. 1. An electric compressor comprising:a main housing including a motor chamber;a driving motor disposed in the motor chamber;a frame fixed to one end of the main housing;a first scroll supported by one side surface of the frame;a second scroll provided between the frame and the first scroll and supported by the frame, the second scroll forming a compression chamber with the first scroll, and forming a back pressure space with the frame, and configured to make an orbiting motion relative to the first scroll when receiving a rotational force from the driving motor to form;a rear cover coupled to the main housing to support one side surface of the first scroll and forming a discharge space with the first scroll;a back pressure flow channel extending through the first scroll and the frame and configured to guide a refrigerant and oil discharged from the compression chamber to the discharge space and the back pressure space;a first decompression portion provided at a first position between the rear cover and the first scroll, the first decompression portion being configured to reduce a pressure of ...

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Номер записи: 86
30-01-2020 дата публикации

SCROLL COMPRESSOR AND METHOD OF MANUFACTURING THE SCROLL COMPRESSOR

Номер: US20200032796A1
Автор: ISHIZONO Fumihiko, Koyama Shuhei, TAKAI Akihito
Принадлежит:

A scroll compressor includes an orbiting scroll, a fixed scroll, and a shell. The fixed scroll is configured to form a compression chamber together with the orbiting scroll. The shell accommodates the orbiting scroll and the fixed scroll. The fixed scroll includes a base plate and a scroll body. The base plate is fixed to the shell. The scroll body projects from the base plate toward the orbiting scroll. The base plate has a stress absorber that is formed outside the scroll body in a radial direction and that is configured to absorb stress from an outer region in the radial direction. A weld joint is formed in an overlap region where the shell and the base plate are fixed to each other and overlap each other. The stress absorber is provided on a line that passes through a center of the base plate and the weld joint. 1. A scroll compressor , comprising:an orbiting scroll;a fixed scroll configured to form a compression chamber together with the orbiting scroll; anda shell that accommodates the orbiting scroll and the fixed scroll,the fixed scroll includinga base plate fixed to the shell, anda scroll body that projects from the base plate toward the orbiting scroll,the base plate having a plurality of stress absorbers that are formed outside the scroll body in a radial direction and that are each configured to absorb stress from an outer region in the radial direction,a plurality of weld joints being formed in an overlap region where the shell and the base plate are fixed to each other and overlap each other,the plurality of stress absorbers each being provided on a line that passes through a center of the base plate and a corresponding one of the plurality of weld joints.2. The scroll compressor of claim 1 ,wherein the shell has a first inner wall surface and a first projection that projects from the first inner wall surface and that serves as a location at which the fixed scroll is positioned, andwherein the fixed scroll is fixed to the first inner wall surface.3. ...

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Номер записи: 87
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: 88
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: 89
05-02-2015 дата публикации

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

Номер: US20150037184A1
Автор: Benco Michael Gerard, Heger Joseph M., Lepak Derrick, Novak Keith Adam, Rood Jerry Allen, Smerud Scott Joseph
Принадлежит:

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

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Номер записи: 90
05-02-2015 дата публикации

ORBITING CRANKSHAFT DRIVE PIN AND ASSOCIATED DRIVE PIN SLEEVE GEOMETRY

Номер: US20150037185A1
Автор: Benco Michael Gerard, Gorski Wayne Gerard, Novak Keith Adam, Rood Jerry Allen, Smerud Scott Joseph
Принадлежит:

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

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Номер записи: 91
05-02-2015 дата публикации

STRUCTURE FOR STABILIZING AN ORBITING SCROLL IN A SCROLL COMPRESSOR

Номер: US20150037186A1
Автор: Benco Michael Gerard, Lakowske Rodney, Rood Jerry Allen, Sauls John Robert, Smerud Scott Joseph
Принадлежит:

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

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Номер записи: 92
05-02-2015 дата публикации

SCROLL COMPRESSOR

Номер: US20150037189A1
Автор: INADA Yukihiro, Matsukawa Kazuhiko, SATA Kenichi, Shibamoto Yoshitaka, Sotojima Takazou
Принадлежит:

A scroll compressor includes a fixed scroll and an orbiting scroll. Each of the fixed and orbiting scrolls includes an end plate and a spiral wrap standing on a front surface of the end plate. The scrolls are arranged such that the front surfaces of the end plates face each other and the wraps are engaged with each other. The orbiting scroll eccentrically rotates, without turning on an axis thereof, with respect to the fixed scroll to compress fluid in compression chambers respectively formed inside and outside the wrap of the orbiting scroll. Each wrap is formed in a shape such that at least one of the compression chambers serves as a rate-reduced compression chamber where a volume change rate thereof is reduced in a middle of a compression phase. 1. A scroll compressor comprising:a fixed scroll; andan orbiting scroll an end plate and', 'a spiral wrap standing on a front surface of the end plate,, 'each of the fixed scroll and the orbit in scroll including'}the fixed scroll and the orbiting scroll being arranged such that the front surfaces of the end plates face each other and the wraps are engaged with each other,the orbiting scroll eccentrically rotates, without turning on an axis thereof, with respect to the fixed scroll to compress fluid in compression chambers respectively formed inside and outside the wrap of the orbiting scroll, andeach wrap of the fixed scroll and the orbiting scroll being formed in a shape such that at least one of the compression chambers serves as a rate-reduced compression chamber where a volume change rate thereof is reduced in a middle of a compression phase.2. The scroll compressor of claim 1 , whereineach wrap of the fixed scroll and the orbiting scroll is formed in an involute curve shape, anda side surface of each wrap facing the rate-reduced compression chamber is formed in a shape of a modified involute curve such that a base circle radius decreases in a stepwise manner from an outer end to an inner end of each wrap.3. The ...

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Номер записи: 93
05-02-2015 дата публикации

Axially Compliant Orbiting Plate Scroll and Scroll Pump Comprising the Same

Номер: US20150037191A1
Автор: FORNI Ronald J.
Принадлежит:

An orbiting plate scroll of a scroll pump includes an orbiting plate having a first side and a second side, an orbiting scroll blade projecting in an axial direction from the first side of the orbiting plate, and a flexure whose compliance is in the axial direction. The flexure is coupled to the orbiting plate at the second side of the orbiting plate, and couples the orbiting plate and orbiting scroll blade to bearings that allow for free rotation of the orbiting plate scroll about a longitudinal axis, while constraining motion of the orbiting plate scroll in the remaining degrees of freedom. 1. An orbiting plate scroll , comprising:an orbiting plate having a first side and a second side;an orbiting scroll blade projecting in an axial direction from the first side of the orbiting plate; anda flexure coupled to the orbiting plate at the second side of the orbiting plate, and wherein the compliance of the flexure is substantially only in the axial direction.2. The orbiting plate scroll of claim 1 , wherein the flexure comprises a cylindrical hub whose central longitudinal axis extends in the axial direction claim 1 , and a flange that extends from the hub and connects the hub to the orbiting plate claim 1 , andwherein the flange comprises a web that is spaced axially from the orbiting plate with the flexure relaxed such that a gap exists between the web and the orbiting plate, and a union integral with the web and by which the flexure is integrated with the orbiting plate.3. The orbiting plate scroll of claim 2 , wherein the web has the form of a disc that spans the hub and the union claim 2 , the union is an annular member claim 2 , and the thickness of the web in the axial direction is less than that of the union.4. The orbiting plate scroll of claim 2 , wherein the web extends from the hub to the union in a direction perpendicular to the axial direction.5. The orbiting plate scroll of claim 2 , wherein an interference fit couples the flange and the orbiting plate ...

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Номер записи: 94
05-02-2015 дата публикации

SCROLL COMPRESSOR WITH PRESSURIZED OIL BALANCE PISTON

Номер: US20150037192A1
Автор: Benco Michael Gerard, Heger Joseph M., Lepak Derrick, Novak Keith Adam, Rood Jerry Allen, Sauls John Robert, Smerud Scott Joseph
Принадлежит:

A scroll compressor includes an orbiting scroll member disposed within a compressor housing. The orbiting scroll member has a substantially circular baseplate and a generally spiral wrap extending from its base. A first seal is disposed proximal to the outer periphery of the orbiting scroll baseplate to provide an external seal between the baseplate and the housing. A second seal is disposed radially inward from the first seal to provide an internal seal between the baseplate and the housing. A space between the internal seal and the external seal defines a balance piston chamber. The balance piston chamber is pressurized via a high or intermediate pressure oil source to reduce thrust loading on the baseplate caused by an axial pressure differential across the baseplate. 1. A scroll compressor , comprising:a compressor housing; a first, stationary, scroll member comprising a base and a generally spiral wrap extending from the base of the first, stationary, scroll member; and', 'a second, orbiting, scroll member comprising a substantially circular base and a substantially spiral wrap extending from the base of the second, orbiting scroll member;, 'an output stage of compression disposed within the compressor housing, the output stage comprisinga first seal disposed proximal to the outer periphery of the substantially circular base and forming an external seal between the substantially circular base and the compressor housing;a second seal disposed radially inward from the first seal and forming an internal seal between the substantially circular base and the compressor housing, wherein a space between the internal seal and the external seal defines a balance piston chamber; andan oil passage disposed within the compressor housing and configured to receive pressurized oil from an oil source and to deliver the received pressurized oil to the balance piston chamber, such that thrust loading on the substantially circular base caused by an axial pressure differential ...

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Номер записи: 95
01-05-2014 дата публикации

Scroll Fluid Machine

Номер: US20140119970A1
Автор: IWANO Kiminori, KANEMOTO Yoshiyuki, KOBAYASHI Yoshio, TASHIRO Koichi
Принадлежит: Hitachi Industrial Equipment Systmes Co., Ltd.

A scroll fluid machine is provided that includes: a fixed scroll; an orbiting scroll opposed to the fixed scroll, the orbiting scroll orbiting with a plurality of compression chambers formed between the orbiting scroll and the fixed scroll; a drive shaft driving the orbiting scroll; and a backside plate provided between the drive shaft and the orbiting scroll, an alignment hole being provided in each of the orbiting scroll and the backside plate, and an alignment pin for alignment and a seal member for sealing the compression chambers being provided in the alignment holes. 1. A scroll fluid machine comprising:a fixed scroll;an orbiting scroll opposed to the fixed scroll, the orbiting scroll orbiting with a plurality of compression chambers formed between the orbiting scroll and the fixed scroll;a drive shaft driving the orbiting scroll; anda backside plate provided between the drive shaft and the orbiting scroll,wherein an alignment hole is provided in each of the orbiting scroll and the backside plate, and an alignment pin for alignment and a seal member for sealing the compression chambers are provided in the alignment holes.2. The scroll fluid machine according to claim 1 , whereinthe alignment holes are provided on an inner side than the drive shaft is.3. The scroll fluid machine according to claim 1 , whereinthe alignment pin has no screw groove or protrusion thereon.4. The scroll fluid machine according to claim 1 , whereinthe seal member includes a screw groove or a protrusion thereon.5. The scroll fluid machine according to claim 1 , whereinthe seal member has a larger diameter than the alignment pin.6. The scroll fluid machine according to claim 1 , whereina sealant is filled between the seal member and the alignment holes.7. The scroll fluid machine according to claim 1 , whereinthe seal member has a tapered end.8. The scroll fluid machine according to claim 1 , whereinthe alignment pin and the seal member are formed integrally.9. The scroll fluid machine ...

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Номер записи: 96
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: 97
01-05-2014 дата публикации

Scroll -Type Compressor

Номер: US20140119972A1
Автор: IGUCHI Masahiro, Iizuka Jiro, Ijiri Makoto, Kubota Masamichi, Oiwake Yuuji, Takahata Masaaki
Принадлежит:

A housing forms one portion of a compressor case and supports a bearing for a main shaft has an opening through which gas Is sucked; a suction space extending from the opening to inside of the compressor; a first gas passageway extending from the suction space in the direction of the axis of the main shaft; a second gas passageway connecting the first gas passageway and the space in which the main shaft bearing is disposed. A shell forms the other portion of the compressor case and is fastened to the housing has a third gas passageway connecting the first gas passageway and the internal space of a compression mechanism. The first gas passageway and the third gas passageway are connected to each other further on the outer side of the main shaft in the rotation radius direction than the movable region of the bottom plate of a movable scroll. 1. A scroll-type compressor comprising: a shell which forms the other portion of the compressor case and which is fastened to the housing having a third gas passageway communicating with the first gas passageway and an internal space of a compression mechanism, characterized in that', 'the first gas passageway and the third gas passageway communicate with each other at an outer side than a region where a bottom plate of a movable scroll can move with respect to a direction of a turning radius of the main shaft., 'a housing which forms one portion of a compressor case and which supports a bearing for a main shaft having an opening through which a gas to be compressed is sucked, a suction space extending with a cylindrical-shape from the opening into the compressor, a first gas passageway extending from the suction space along a rotation axis of the main shaft, and a second gas passageway communicating with the first gas passageway and a space in which the bearing is disposed; and'}2. The scroll-type compressor according to claim 1 , wherein the housing has a lubricating oil passageway which is independent from the first gas ...

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Номер записи: 98
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: 99
04-02-2021 дата публикации

Co-rotating scroll compressor and assembly method therefor

Номер: US20210033093A1
Автор: Hirohumi Hirata, Keita KITAGUCHI, Makoto Takeuchi, Takahide Ito, Takuma YAMASHITA
Принадлежит: Mitsubishi Heavy Industries Ltd

Provided is a co-rotating scroll compressor comprising a synchronous drive mechanism that can achieve a long life. The compressor comprises a driving side scroll member ( 90 ) driven to rotate about a driving side rotation axis CL 1, a driven side scroll member ( 70 ) driven to rotate about a driven side rotation axis CL 2, a hollowed drive shaft ( 6 ) that is connected to the driving side scroll member ( 90 ), and driven by a motor ( 5 ) to rotate, and a driven shaft ( 20 ) that is disposed inside the drive shaft ( 6 ), and has one end connected to the drive shaft ( 6 ) via a first flexible coupling ( 21 ) and the other end connected to the driven side scroll member ( 70 ) via a second flexible coupling ( 22 ).

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Номер записи: 100