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Небесная энциклопедия

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

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Мониторинг СМИ

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

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 1781. Отображено 100.
26-04-2012 дата публикации

Hermetic compressor

Номер: US20120100020A1
Автор: Jongmok Lee, Kyeongho Kim, Kyoungjun Park
Принадлежит: LG ELECTRONICS INC

There is provided a hermetic compressor capable of supplying oil even in a low-speed operation. The hermetic compressor includes a hermetic contained filled with oil in a base thereof, a rotatably crank shaft having a screw-shaped oil groove in an outer portion thereof, and an oil feeder having an upper portion in which a lower portion of the crank shaft is inserted, the oil feeder having a lower portion immersed in oil of the hermetic container.

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Номер записи: 1
19-07-2012 дата публикации

Hybrid Type Air-Compressor Including Combination of Eccentric Shaft and Cross-Slider Mechanism

Номер: US20120180652A1
Автор: Gil Jun Lee, Seung Hwan Ryu, Tae Soo Lee, Yong Duck Kim, Yoon Sun Choi
Принадлежит: Industry University Cooperation Foundation of Sogang University, Oxus Co Ltd

Disclosed is a hybrid type air-compressor, which has a main body including a cylinder having upper and lower portions, a motor assembly including an eccentric shaft passing through a side surface of the main body to eccentrically rotate in the cylinder, a first communication part covering an upper portion of the cylinder of the main body and introducing air to discharge the air to the upper portion of the cylinder, a second communication part covering a lower portion of the cylinder of the main body and introducing air to discharge the air to the lower portion of the cylinder; and an air compressing means connected to the eccentric shaft of the motor assembly and vertically moving in the cylinder to alternately compress air introduced into the upper and lower portions of the cylinder.

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Номер записи: 2
02-08-2012 дата публикации

Oil-Free Air Compressor for Rail Vehicles

Номер: US20120192710A1
Автор: Antione T. Ford, Michael V. Kazakis, Murtaza R. Dossaji, Roland S. Moore
Принадлежит: Wabtec Holding Corp

An oil-free compressor for a rail vehicle includes a multi-piece compressor housing, a first piston cylinder supported in a first opening in the compressor housing, a second piston cylinder supported in a second opening in the compressor housing, and a multi-piece crankshaft assembly supported by the compressor housing. The crankshaft assembly is linked to pistons of the first and second piston cylinders by respective connecting rods. The connecting rods connect to a wrist pin associated with each of the pistons, and the wrist pins are respectively supported by a dry lubricant bushing to the associated piston. The compressor housing may have at least a first housing portion and a second housing portion. The first housing portion and the second housing portion may form respective halves of the compressor housing that are secured together with mechanical fasteners.

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Номер записи: 3
14-11-2013 дата публикации

Hermetic compressor

Номер: US20130302149A1
Автор: Jin Kook Kim, Kyoung Jun Park
Принадлежит: LG ELECTRONICS INC

A hermetic compressor includes: a crank shaft rotated by using an axial direction as a rotational axis; a stator rotating the crank shaft; a first bearing penetrated by the crank shaft and rotatably coupled to one side of the crank shaft based on the stator to support one side of the crank shaft when the crank shaft is rotated; a support part having one side provided at the stator and the other side disposed to be adjacent to the other side of the crank shaft, based on the stator; and a second bearing coupled to the other side of the support part and supporting the other side of the crank shaft.

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Номер записи: 4
19-12-2013 дата публикации

Crankshaft for an alternative cooling compressor

Номер: US20130336765A1
Автор: Adilson Luiz Manke, Laerte Capestrini
Принадлежит: Whirlpool SA

The present invention refers to a crankshaft ( 1 ) for an alternative compressor comprising a main shaft ( 21 ) connected to an eccentric pin ( 2 ) by means of a peripheral flange ( 3 ) containing a lubricating hole ( 24 ) extending through said eccentric pin ( 2 ) and through at least part of the body of main shaft ( 21 ), one of the edges of said hole ( 24 ) being on the cylindrical surface ( 2 a ) of said eccentric pin ( 2 ). With this type of hole, the present invention allows for the use of shafts having extremely low diameters (and, as result, with low viscous loss), even with high eccentricities, whereby an excellent capacity of oil pumping and mechanical strength is maintained.

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Номер записи: 5
07-01-2016 дата публикации

Compressor Arrangement for Operating a Compressed Air Supply Facility, Compressed Air Supply Facility and Compressed Air Supply System, and Vehicle with Such a Compressed Air Supply Facility

Номер: US20160001624A1
Автор: Meissner Frank, SEEGER Marco
Принадлежит:

The invention relates to a compressor arrangement for operating a compressed air supply facility of a vehicle, having a compressor () having an electric motor (), constructed as an electronically commutated, brushless DC motor with a control circuit comprising a power electronics unit, and a pneumatic compressor (), wherein the electric motor () is constructed in the form of an external rotor motor. The invention further relates to a compressed air supply facility having such a compressor arrangement, to a vehicle having a pneumatic system, particularly an air spring system and such a compressed air supply facility, and to a method for operating a compressed air supply facility on a vehicle having such a compressor arrangement,? 2. The compressor arrangement as claimed in claim 1 , characterized in that the compressor element is constructed as a single-cylinder claim 1 , two-cylinder or multi-cylinder compressor element.4. The compressor arrangement as claimed in claim 3 , characterized in that a crankpin formed eccentrically with respect to the motor axis (MA) claim 3 , which forms the crankshaft claim 3 , adjoins the drive shaft on the motor output side.5. The compressor arrangement as claimed in one of to claim 3 , characterized in that the electronic control circuit furthermore has:a first control module, which is designed to store a measure of an energy storage capacity for a rotational energy of the rotor, being designed, in particular, to monitor and or perform open-loop or closed-loop control of an angular speed of the rotor.6. The compressor arrangement as claimed in one of to claim 3 , characterized in that the electronic control circuit furthermore has:a second control module, which is designed to monitor a speed of the rotor, in particular to perform open-loop or closed-loop control of a speed of the rotor, in particular the electric motor being connected to a speed controller, which is designed to set the operating voltage at the motor and/or the rotary ...

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Номер записи: 6
07-01-2021 дата публикации

PROCESS FOR OPERATING A SINGLE-STROKE COMBUSTION ENGINE

Номер: US20210003121A1
Автор: Gamble Christopher L.
Принадлежит: KISS-Engineering Inc.

The present invention is directed to a process for operating a combustion engine having a double-sided piston in a piston cylinder, wherein every stroke of the double-sided piston is a power stroke. Every piston cylinder defines a combustion chamber on each side of the double-sided piston. The process includes igniting a fuel-air mixture in each combustion chamber on each side of double-sided piston during every compression, i.e., at about top dead center and at about bottom dead center. The process utilizes the double-sided piston to achieve two power strokes per piston for each engine cycle. 1. A process for operating a combustion engine , comprising the steps of:providing a combustion engine having a primary cylinder enclosing a double-sided piston and defining a first combustion chamber and a second combustion chamber on opposite sides of the double-sided piston, wherein the double-sided piston reciprocates between top dead center in the first combustion chamber and bottom dead center in the second combustion chamber relative to a crankshaft;igniting a first fuel-air mixture in the first combustion chamber every time the double-sided piston is about at top dead center; andigniting a second fuel-air mixture in the second combustion chamber every time the double-sided piston is about at bottom dead center.2. The process of claim 1 , wherein the step of igniting the first fuel-air mixture pushes the double-sided piston in a downward direction toward bottom dead center in the second combustion chamber.3. The process of claim 2 , wherein the step of igniting the second fuel-air mixture pushes the double-sided piston in an upward direction toward top dead center in the first combustion chamber.4. The process of claim 3 , wherein the step of igniting the first fuel-air mixture produces combustion gases in the first combustion chamber claim 3 , further comprising the step of:exhausting the combustion gases through an exhaust port intermediate the first combustion ...

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Номер записи: 7
12-01-2017 дата публикации

SEALED COMPRESSOR AND REFRIGERATION DEVICE

Номер: US20170009758A1
Автор: INAGAKI Ko, KOBAYASHI Masanori
Принадлежит:

A sealed compressor includes sealed container that contains electric element, and compression element driven by electric element. Compression element includes shaft that includes main shaft portion, and eccentric shaft portion integrally movable with main shaft portion, and bearing portion that supports main shaft portion of shaft to constitute a cantilever bearing. Compression element further includes cylinder that compresses gas, piston reciprocatively inserted into cylinder, and connecting rod that connects eccentric shaft portion with piston. 1. A sealed compressor comprising a sealed container that contains an electric element , and a compression element driven by the electric element , wherein a shaft that includes a main shaft portion, and an eccentric shaft portion integrally movable with the main shaft portion,', 'a bearing portion that supports the main shaft portion of the shaft to constitute a cantilever bearing,', 'a cylinder that compresses gas,', 'a piston reciprocatively inserted into the cylinder, and', 'a connecting rod that connects the eccentric shaft portion with the piston,, 'the compression element includes{'b': 1', '1, 'claim-text': {'br': None, 'i': a', '+c, '1=π/21\u2003\u2003(1), and'}, 'an angle a formed by a first center line indicating a shaft center of the bearing portion, and a second center line indicating a shaft center of the cylinder, and an absolute value c of an angle of a tilt of the shaft with respect to the bearing portion satisfy equation (1) a seal portion producing a clearance from an inner circumferential surface of the cylinder, and forming a sliding surface,', 'an extension portion disposed in a rear of the seal portion, and forming a sliding surface, and', 'a non-sliding portion disposed in the rear of the seal portion, and not forming a sliding surface., 'an outer circumferential surface of the piston includes2. The sealed compressor according to claim 1 , wherein the extension portion has a radius same as a radius of ...

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Номер записи: 8
11-01-2018 дата публикации

AIR COMPRESSOR PUMP WITH CONDENSING CHAMBER

Номер: US20180010593A1
Автор: BECKMAN Kurt R., JR. James P., Nichols, SHARP Thomas B., Wood Mark W.
Принадлежит:

An air compressor pump is provided, including a crankcase with an opening and a crankshaft extending out of the opening; a cover disposed over the opening in the crankcase; and a condensing chamber formed between the crankcase and the cover. 1. An air compressor pump comprising:a crankcase with an opening and a crankshaft extending out of the opening;a cover disposed over the opening in the crankcase; anda condensing chamber formed between the crankcase and the cover.2. The air compressor pump of further comprising:one or more ribs disposed on an outer surface of the cover, or an inner surface of the cover, or both.3. The air compressor pump of further comprising:a baffle disposed between the crankcase and the cover, disposed for defining the condensing chamber.4. The air compressor pump of further comprising:a positioning aperture and a condensing chamber aperture both being disposed in the baffle.5. The air compressor pump of further comprising:a vent aperture disposed in the cover.6. The air compressor pump of claim 3 , wherein said baffle is constructed and arranged to form a thermal barrier between the condensing chamber claim 3 , which has relatively cool air circulating across it claim 3 , and the internal sump of the crankcase claim 3 , which has a mixture of hot oil claim 3 , oil vapor and air.7. The air compressor pump of claim 3 , wherein said baffle is made of elastomeric material. The present application claims priority under 35 US 119 from U.S. Provisional application No. 62/358,973, filed Jul. 6, 2016.This disclosure relates generally to a pump for an air compressor, and more particularly to a belt driven oil-lubricated pump for an air compressor.Air compressors are commonplace in home and commercial workshops. In general, an air compressor is a machine that decreases the volume and increases the pressure of a quantity of air by mechanical means. Air thus compressed possesses great potential energy, because when the external pressure is removed, the ...

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Номер записи: 9
10-01-2019 дата публикации

RECIPROCATING-PISTON MACHINE, COMPRESSED-AIR SUPPLY INSTALLATION, COMPRESSED-AIR SUPPLY SYSTEM, AND VEHICLE

Номер: US20190010937A1
Автор: Bredbeck Klaus, KIRCHHOFF Dirk, NUSS Eduard, SEEGER Marco, Stabenow Uwe, WOLTMANN Fritz
Принадлежит: WABCO GmbH

A reciprocating-piston machine includes at least one first cylinder and at least one first piston assigned to the first cylinder as well as at least one second cylinder and at least one second piston assigned to the second cylinder. During operation, the first piston and the second piston are deflected in a respective cylinder displacement chamber of the respective first cylinder and the second cylinder. The reciprocating-piston machine further includes a crankshaft which, during operation, can be driven and which has an eccentric crankshaft journal and a drive shaft coupling designed for the coupling of a drive shaft of a drive motor for driving the crankshaft. Additionally, the reciprocating-piston machine includes a first connecting rod configured to deflect the first piston, a second connecting rod configured to deflect the second piston, and a bearing pin about which the first and second connecting rod are rotationally movable. 1: A reciprocating-piston machine , having: 'at least one second cylinder and at least one second piston assigned to the second cylinder, wherein, during operation, the first piston and the second piston are deflected in a respective cylinder displacement chamber of the respective first cylinder and the second cylinder,', 'at least one first cylinder and at least one first piston assigned to the first cylinder;'}a crankshaft which, during operation, can be driven and which has an eccentric crankshaft journal and a drive shaft coupling designed for the coupling of a drive shaft of a drive motor for driving the crankshaft,a first connecting rod configured to deflect the first piston,a second connecting rod configured to deflect the second piston, anda bearing pin about which the first and second connecting rod are rotationally movable,wherein the first connecting rod is mounted by at least one first connecting-rod bearing directly on the crankshaft journal and is movable by the eccentric crankshaft journal, and the second connecting rod is ...

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Номер записи: 10
10-01-2019 дата публикации

SMALL AIR COMPRESSOR

Номер: US20190010938A1
Автор: KIM Jong Hyuk
Принадлежит: New Motech Co., Ltd.

A cylinder coupling structure of a small air compressor according to the present invention, in which a cylinder is integrally coupled to a block by which a crankshaft is shaft-supported, wherein the block is provided with a supporting end by which the cylinder is pressed to be supported; a latching end is formed on the outer surface of the cylinder; and a press bolt is fastened to the block and a valve cover so that the valve cover presses the front end of the cylinder while the latching end of the cylinder is latched and supported on the supporting end. 1. A small air compressor comprising:a block;a cylinder having a tube-shaped body, coupled to the block;a valve assembly provided with a suction valve and a discharge valve, blocking the front end of the cylinder;a valve cover covering the valve assembly to form a suction space and a discharge space on the top of the valve assembly;at least one press bolt coupling the valve cover and the block such that the cylinder is pressed between the valve cover and the block;a piston reciprocating inside the cylinder;a stator coupled to the block;a rotor positioned to rotate relative to the stator;a crankshaft coupled with the rotor to rotate integrally with the rotor, rotatably shaft-supported on the block; anda connecting rod having both ends connected to the crankshaft and the piston, respectively, to convert a rotary motion of the crankshaft into a linear reciprocating motion of the piston, wherein the block is provided with a supporting end by which the cylinder is pressed to be supported, a latching end is formed on the outer surface of the cylinder, and the press bolt is fastened to the block and the valve cover such that the valve cover presses the front end of the cylinder while the latching end of the cylinder is latched and supported on the supporting end.2. The small air compressor according to claim 1 , wherein the block is formed with a cylinder insertion hole penetrating therethrough into which one end portion ...

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Номер записи: 11
19-01-2017 дата публикации

Compressor with Crankshaft and Insert

Номер: US20170016437A1
Автор: Franz Thomas J., Harte Shane A.
Принадлежит: BENDIX COMMERCIAL VEHICLE SYSTEMS LLC

Various embodiments of a crankshaft assembly with an insert are disclosed. The crankshaft assembly for an air compressor comprises a crankshaft with a first segment; a second segment having an outside diameter and a cavity extending into a distal end. The cavity comprises a first portion having a first inner diameter; and a second portion having a second inner diameter, wherein the second inner diameter is less than the first inner diameter. The crankshaft includes a linear passage in the second segment, wherein the linear passage does not intersect the cavity. The crankshaft assembly includes an insert having a first end with a first insert diameter and a second end having a second insert diameter, wherein the insert is sized to be matingly engaged in the cavity. 1. A crankshaft assembly for an air compressor for a vehicle comprising: a first segment;', 'a second segment having an outside diameter at a distal end;', a first portion having first inner diameter; and', 'a second portion having a second inner diameter, wherein the second inner diameter is less than the first inner diameter;, 'a cavity extending into the second segment at the distal end, the cavity comprising, 'a linear passage in the second segment, wherein the linear passage does not intersect the cavity; and, 'a crankshaft, the crankshaft comprisingan insert having a first end with a first insert diameter and a second end with a second insert diameter, wherein the insert is sized to be matingly engaged in the cavity.2. The crankshaft assembly as in claim 1 , wherein the first end of the insert is interference fit with the first portion of the cavity.3. The crankshaft assembly as in claim 1 , wherein the cavity is stepped between the first portion and the second portion.4. The crankshaft assembly as in claim 1 , wherein the length of the first portion of the cavity having the first inner diameter is about twice as long as the length of the second portion of the cavity having the second inner diameter; ...

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Номер записи: 12
10-02-2022 дата публикации

PISTON COMPRESSOR AND METHOD IN WHICH SUCH A PISTON COMPRESSOR IS USED

Номер: US20220042502A1
Автор: BECKERS Jarl, VERRELST Björn
Принадлежит:

A piston compressor, comprising at least one piston compressor element () that is provided with a housing () with a compression chamber () in which a piston () is arranged movably back and forth in an axial direction (X-X′) between an upper dead point and a lower dead point by means of a drive shaft () driven by a rotary motor (), and in which between this drive shaft () and the piston (), a kinematic transmission () is provided for the primary drive of the piston (), characterized in that the piston () is provided with a complementary drive () in the form of an electromagnetic linear drive. 13813105651020101025. A piston compressor , comprising at least one piston compressor element () that is provided with a housing () with a compression chamber () in which a piston () is arranged movably back and forth in an axial direction (X-X′) between an upper dead point and a lower dead point by means of a drive shaft () driven by a rotary motor () , and in which between this drive shaft () and the piston () , a kinematic transmission () is provided for the primary drive of the piston () , wherein the piston () is provided with a complementary drive () in the form of an electromagnetic linear drive.22510261310. The piston compressor according to claim 1 , wherein the complementary electromagnetic linear drive () comprises a direct electromagnetic drive of the piston () with one or several electrical coils () arranged around or along the compression chamber () claim 1 , which are capable of interacting inductively with the piston ().3109. The piston compressor according to claim 2 , wherein the piston () and/or the cylinder mantle () are provided with one or more magnets.42510293013263029. The piston compressor according to claim 1 , wherein the complementary electromagnetic linear drive () comprises an indirect electromagnetic drive of the piston () with a plunger () which is arranged movably back and forth in a linear guide or enclosure () or which extends parallel to the ...

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Номер записи: 13
29-01-2015 дата публикации

SEALED COMPRESSOR AND REFRIGERATION UNIT COMPRISING SEALED COMPRESSOR

Номер: US20150030478A1
Автор: Akashi Hironari, Ide Terumasa, KUBOTA Akihiko, Tsuboi Kousuke, Watanabe Kiwamu
Принадлежит: Panasonic Corporation

A sealed compressor comprises a sealed container () which accommodates an electric component () and a compression component (); wherein the compression component () includes a shaft () including a main shaft section () and an eccentric shaft section (), a cylinder block (), a piston (), and a main bearing unit () mounted to the cylinder block () and supporting the main shaft section () such that the main shaft section () is rotatable, a thrust ball bearing () mounted to a thrust surface () of the main bearing unit (); and the thrust ball bearing () includes a plurality of balls () held in a cage (), an upper race () having main surfaces one of which is in contact with upper portions of the balls (); and a lower race () having main surfaces one of which is in contact with lower portions of the balls () and; a restricting means for restricting a displacement of the upper race () with respect to the shaft (). 1. A sealed compressor comprising:an electric component including a stator and a rotor;a compression component actuated by the electric component;a sealed container which accommodates the electric component and the compression component and stores lubricating oil therein;wherein the compression component includes a shaft including a main shaft section to which the rotor is fastened and an eccentric shaft section, a cylinder block having a compression chamber, a piston reciprocatable inside the compression chamber, a connecting member for coupling the piston to the eccentric shaft section, and a main bearing unit mounted to the cylinder block and supporting the main shaft section such that the main shaft section is rotatable, a thrust ball bearing mounted to a thrust surface of the main bearing unit; and the thrust ball bearing includes a plurality of balls held in a cage, an upper race having main surfaces one of which is in contact with upper portions of the balls; and a lower race having main surfaces one of which is in contact with lower portions of the balls ...

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Номер записи: 14
02-02-2017 дата публикации

Compressor Valve Health Monitor

Номер: US20170030349A1
Автор: Matthew Carl Heller, Terry Lynn Ford, Timothy Scott Bassett
Принадлежит: Computational Systems Inc

A rotating machine valve health monitor. Aspects of the valve monitor include instrumenting each valve of a reciprocating compressor, or other rotating machine, with a sensor capable of detecting at least vibration and instrumenting the crank shaft with a sensor capable of detecting at least rotation. A controller directly monitors the operation and condition of each valve to precisely identify any individual valve exhibiting leakage issues rather than only identifying the region of the leakage. The valve monitor uses a relatively high frequency stress wave analysis technique to provide a good signal-to-noise ratio to identify impact events indicative of leakage. The valve monitor uses circular waveforms of vibration data for individual valves to identify leakage by pattern recognition or visual identification. The valve monitor provides ongoing data collection to give warning of predicted valve failure and scheduling of preventative maintenance for failing valves.

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Номер записи: 15
01-02-2018 дата публикации

HERMETIC REFRIGERANT COMPRESSOR AND REFRIGERATION APPARATUS

Номер: US20180031280A1
Автор: Ide Terumasa, KOBAYASHI Hidenori, KUBOTA Akihiko, Sumi Masaki
Принадлежит:

A sealed refrigerant compressor comprises an electric component and a compression component accommodated in a sealed container, and the compression component includes a cylinder and a piston which is reciprocatable inside the cylinder. The electric component includes a stator, and a rotor having a lower surface facing an oil surface of lubricating oil. The rotor has a shape in which its diameter is larger than its length in a rotational axis direction thereof. A core of the rotor is provided with at least one balance hole for adjusting a load balance during rotation of the rotor, for example, at least one balance through-hole. 1. A sealed refrigerant compressor comprising:a sealed container in which lubricating oil is reserved in a lower portion in an interior of the sealed container;an electric component accommodated in the sealed container; anda compression component accommodated in the sealed container and configured to be driven by the electric component,wherein the compression component includes a cylinder disposed inside the sealed container to extend in a direction crossing a vertical direction, and a piston which is reciprocatable inside the cylinder,wherein the electric component includes a stator, and a rotor having a lower surface facing an oil surface of the lubricating oil, and the rotor has a shape in which a diameter of the rotor is larger than a length of the rotor in a rotational axis direction thereof,wherein a core of the rotor is provided with at least one balance hole configured to adjust a load balance during rotation of the rotor,wherein the rotor includes a permanent magnet and does not include a magnet protective member covering an outer periphery of the permanent magnet provided in the core, andwherein the at least one balance hole is located not to be line-symmetric or point-symmetric with respect to a rotational axis of the rotor.2. (canceled)3. The sealed refrigerant compressor according to claim 1 ,wherein the at least one balance hole ...

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Номер записи: 16
31-01-2019 дата публикации

REFRIGERANT COMPRESSOR AND FREEZING APPARATUS USING SAME

Номер: US20190032971A1
Автор: ISHIDA Yoshinori, Oyagi Shingo
Принадлежит:

Refrigerant compressor includes electromotive element, and compression element that is driven by electromotive element, includes a slider, and compresses a refrigerant. Freezer oil that lubricates the slider is added with fullerene having a diameter that ranges from 100 pm to 10 nm. 1. A refrigerant compressor comprising:an electromotive element; anda compression element that is driven by the electromotive element, includes a slider, and compresses a refrigerant,wherein a freezer oil that lubricates the slider is added with a fullerene having a diameter that ranges from 100 pm to 10 nm.2. The refrigerant compressor according to claim 1 , wherein one of a C60 fullerene, a C70 fullerene, and a higher-order fullerene including a larger number of carbons than a number of carbons of the C70 fullerene; or', 'a mixed fullerene obtained by mixing at least two of the C60 fullerene, the C70 fullerene, and the higher-order fullerene., 'the fullerene is3. The refrigerant compressor according to claim 1 , wherein a shape of the fullerene is spherical or elliptic.4. The refrigerant compressor according to claim 1 , wherein an additive amount of the fullerene is less than or equal to a saturating amount of dissolution with respect to the freezer oil.5. The refrigerant compressor according to claim 1 , whereinthe refrigerant compressed by the compression element is a hydrofluorocarbon (HFC) refrigerant or a mixed refrigerant including the HFC refrigerant, and one of ester oil, alkylbenzene oil, polyvinyl ether, and polyalkylene glycol; or', 'mixed oil of at least two of the ester oil, the alkylbenzene oil, the polyvinyl ether, and the polyalkylene glycol., 'the freezer oil is6. The refrigerant compressor according to claim 1 , wherein one natural refrigerant of R600a, R290, and R744; or', 'a mixed refrigerant that includes at least one of the R600a, the R290, and the R744, and, 'the refrigerant compressed by the compression element is one of mineral oil, ester oil, alkylbenzene oil ...

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Номер записи: 17
25-02-2016 дата публикации

Control Valve And Variable Capacity Compressor Provided With Said Control Valve

Номер: US20160053755A1
Автор: Taguchi Yukihiko
Принадлежит:

A control valve is disclosed that drives a valve body in a valve closing direction against urging forces of a bellows assembly and an open spring by an electromagnetic force generated in an electromagnetic coil portion by a drive current subjected to pulse width modulation. The control valve is provided with a notch portion formed in an inner peripheral wall of a through hole portion disposed in an end wall of a solenoid housing, so that a magnetic resistance between a peripheral wall of a movable iron core housed in a housing member and the inner peripheral wall of the through hole portion in a region of the notch portion differs from that in the other region around the movable iron core. In addition, a variable displacement compressor controls a refrigerant gas discharge displacement by use of this control valve. 1. A control valve comprising:a valve unit having a valve body that opens and closes a fluid passage in a valve housing and a movable iron core coupled with the valve body;a housing member having a tubular shape with a bottom and that houses the movable iron core;a drive coil portion disposed around the housing member;a solenoid housing that houses the drive coil portion, one end of which is fixed to the valve housing, and the other end of which is provided with an end wall covering an upside of the drive coil portion and having a through hole portion through which a bottom wall side end portion of the housing member is extended; andurging means for urging the valve unit in a valve opening direction,the control valve being configured to drive the valve body in a valve closing direction against an urging force of the urging means by an electromagnetic force generated in the drive coil portion by supply of a drive current subjected to pulse width modulation, wherein the electromagnetic force is adjusted, thereby adjusting an opening degree of the valve body,wherein there is provided, around the movable iron core, a region in which a magnetic resistance ...

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Номер записи: 18
25-02-2016 дата публикации

Reciprocating Machinery Monitoring System and Method

Номер: US20160055737A1
Автор: Boken Michael
Принадлежит:

A method and system for monitoring at least one reciprocating machine having a crankshaft and at least one cylinder, comprising providing at least one sensor for monitoring the at least one cylinder, the sensor being in communication with at least one processor configured to measure at least one signal from the at least one sensor and to thereby determine an angular position of the crankshaft; selecting at least one subset of potential crankshaft angular positions; calculating at least one statistic associated with the at least one subset of possible crankshaft angular positions based at least partially on data from the at least one sensor; and automatically providing a user with at least one warning or automatically shutting down the machine if the at least one statistic exceeds at least one predetermined threshold; wherein, the at least one sensor comprises at least one acoustic emission sensor. 1. A method for monitoring at least one reciprocating machine having a crankshaft and at least one cylinder , comprising the steps of:providing at least one sensor for monitoring the at least one cylinder, the sensor being in communication with at least one processor configured to measure at least one signal from the at least one sensor and to thereby determine an angular position of the crankshaft;selecting at least one subset of potential crankshaft angular positions;calculating at least one statistic associated with the at least one subset of possible crankshaft angular positions based at least partially on data from the at least one sensor; andautomatically providing a user with at least one warning or automatically shutting down the machine if the at least one statistic exceeds at least one predetermined threshold;wherein the at least one sensor comprises at least one acoustic emission sensor.2. The method of claim 1 , wherein the at least one sensor comprises at least one of the following:a magnetic pickup sensor, an accelerometer, a thermometer, a pressure sensor, ...

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Номер записи: 19
05-03-2015 дата публикации

Flywheel Device of an Air Compressor of a Tire Repair Machine

Номер: US20150059507A1
Автор: David Hong
Принадлежит: Active Tools International HK Ltd

A flywheel device of an air compressor of a tire repair machine is provided; the flywheel comprises a primary gear and a flywheel fixed on a side surface of the primary gear. An axial length of the overall flywheel device is shorter, and the flywheel device has a simpler structure. Thus, a size of the flywheel device can be reduced, other elements of the tire repair machine can be arranged more rationally, and the manufacturing cost can be reduced.

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Номер записи: 20
10-03-2022 дата публикации

Compressor

Номер: US20220074399A1
Автор: GOTO Sho, NARISAWA Nobuyuki, Suzuki Tatsuya, UMEDA Ken
Принадлежит:

There is provided a compressor including: a piston that reciprocates inside a cylinder; a valve plate that closes an end portion of the cylinder; a connecting rod that supports the piston; a crankshaft that applies a rotating force to an end portion of the connecting rod; and a crankcase that rotatably supports the crankshaft. The piston is an oscillating piston that reciprocates while oscillating inside the cylinder according to rotation of the crankshaft. A central axis of an inner diameter of the cylinder is disposed at a position shifted by an offset amount e with respect to a rotation center axis of the crankshaft. An upper surface of the piston is substantially parallel to a crankcase side surface of the valve plate in a state where the piston is at a top dead center. 1. A compressor comprising:a piston that reciprocates inside a cylinder;a valve plate that closes an end portion of the cylinder;a connecting rod that supports the piston;a crankshaft that applies a rotating force to an end portion of the connecting rod; anda crankcase that rotatably supports the crankshaft,wherein the piston is an oscillating piston that reciprocates while oscillating inside the cylinder according to rotation of the crankshaft,a central axis of an inner diameter of the cylinder is disposed at a position shifted by an offset amount e with respect to a rotation center axis of the crankshaft, andan upper surface of the piston is substantially parallel to a crankcase side surface of the valve plate in a state where the piston is at a top dead center.2. The compressor according to claim 1 ,wherein at a crank angle at which a line segment connecting a rotation center of the crankshaft and a center of a big end portion of the connecting rod is parallel to the central axis of the inner diameter of the cylinder, the upper surface of the piston or the crankcase side surface of the valve plate is not orthogonal to the central axis of the inner diameter of the cylinder.3. The compressor ...

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Номер записи: 21
03-03-2016 дата публикации

Compressor crankcase heating control systems and methods

Номер: US20160061505A1
Автор: Hung Pham
Принадлежит: Emerson Climate Technologies Inc

A crankcase heating control system for a heat pump system includes a data receiving module and a power control module. The data receiving module receives data indicative of a temperature of a compressor of the heat pump system, data indicative of an ambient temperature, and data indicative of a current date and a current time. The power control module selectively applies power to a heater of a crankcase of the compressor and selectively disables the heater based on the temperature of the compressor, the ambient temperature, the current date, and the current time.

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Номер записи: 22
20-02-2020 дата публикации

REFRIGERANT COMPRESSOR AND FREEZER INCLUDING SAME

Номер: US20200056604A1
Автор: Iida Noboru, INAGAKI Ko, ISHIDA Yoshinori
Принадлежит:

A refrigerant compressor includes: an electric component (); a compression component () driven by the electric component to compress a refrigerant; and a sealed container () accommodating the electric component and the compression component. The compression component includes: a shaft part () rotated by the electric component; and a bearing part () slidingly contacting the shaft part such that the shaft part is rotatable. A film () having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part. Surface roughness of the sliding surface of the bearing part is smaller than surface roughness of the sliding surface of the shaft part. 1. A refrigerant compressor comprising:an electric component;a compression component driven by the electric component to compress a refrigerant; anda sealed container accommodating the electric component and the compression component, wherein: a shaft part rotated by the electric component and', 'a bearing part slidingly contacting the shaft part such that the shaft part is rotatable;, 'the compression component includes'}a film having hardness equal to or more than hardness of a sliding surface of the bearing part is provided on a sliding surface of the shaft part; andsurface roughness of the sliding surface of the bearing part is smaller than surface roughness of the sliding surface of the shaft part.2. The refrigerant compressor according to claim 1 , wherein the surface roughness of at least a part of the sliding surface of the bearing part is smaller than the surface roughness of the sliding surface of the shaft part.3. The refrigerant compressor according to claim 1 , wherein:a dimension of a range of the sliding surface of the bearing part is 1/10 or more and ½ or less of a dimension of the sliding surface of the shaft part in a center axis direction of the bearing part, the range having the surface roughness smaller than the surface roughness of the sliding ...

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Номер записи: 23
04-03-2021 дата публикации

SEALED REFRIGERANT COMPRESSOR AND REFRIGERATION DEVICE

Номер: US20210062798A1
Автор: Akashi Hironari, YOKOTA Kazuhiro
Принадлежит: Panasonic Appliances Refrigeration Devices Singapore

A sealed refrigerant compressor (A) accommodates an electric component (A) and a compression component () in a sealed container (). A crankshaft () included in the compression component () includes a main shaft part () and an eccentric shaft part (). A main shaft part () is secured to a rotor (A) of the electric component (A). The rotor (A) is provided with a balance adjustment means such as a balance hole (), which adjusts an unbalanced load caused by the structure of the main shaft part (). 1. A sealed refrigerant compressor comprising:a crankshaft including a main shaft part, an eccentric shaft part and an oil feeding passage,a cylindera piston coupled to the eccentric shaft part and being reciprocatable inside the cylinder, anda rotor provided with a balance hole which adjusts an unbalanced load caused by a structure of the main shaft part, wherein the balance hole is provided in a semicircular column region of the rotor which is located on a side opposite to the position of center of mass of the oil feeding passage, with respect to the center axis of the main shaft part which is located between the balance hole and the position of center of mass of the oil feeding passage.2. The sealed refrigerant compressor according to claim 1 ,wherein the rotor further includes a balance weight.3. (canceled)441. The sealed refrigerant compressor according to claim claim 1 ,wherein in a case where a radial line extending from a rotation axis of the rotor through a position of center of mass of the eccentric shaft part is a reference line of 0 degree, and an angle formed in a region on the side opposite to the position of center of mass of the oil feeding passage is a positive angle,the balance hole is provided within a sector column region in a range of 5 to 175 degrees with respect to the reference line, in the semicircular column region of the rotor.5. The sealed refrigerant compressor according to claim 4 ,wherein the hole is provided within at least one of a sector column ...

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Номер записи: 24
22-05-2014 дата публикации

Compressor Crankcase Heating Control Systems and Methods

Номер: US20140138451A1
Автор: Hung Pham
Принадлежит: Emerson Climate Technologies Inc

A crankcase heating control system for a heat pump system includes a data receiving module and a power control module. The data receiving module receives data indicative of a temperature of a compressor of the heat pump system, data indicative of an ambient temperature, and data indicative of a current date and a current time. The power control module selectively applies power to a heater of a crankcase of the compressor and selectively disables the heater based on the temperature of the compressor, the ambient temperature, the current date, and the current time.

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Номер записи: 25
17-03-2022 дата публикации

PUMP BODY ASSEMBLY, COMPRESSOR AND AIR CONDITIONER

Номер: US20220082094A1
Автор: Li Jin, ZHENG Licheng
Принадлежит: ANHUI MEIZHI PRECISION MANUFACTURING CO., LTD.

A pump body assembly, a compressor and an air conditioner are provided. The pump body assembly has a crankshaft, a main bearing, and a cylinder body. The crankshaft has a main shaft part and an eccentric part connected with the main shaft part. The main bearing has a hub part. The main shaft part extends through a through hole in the hub part. A first oil guide groove is formed in the hole wall of the through hole. A sliding vane slot and a center hole are formed in the cylinder body. The crankshaft extends through the center hole. The main bearing is located at the one side of the cylinder body. The crankshaft and the main bearing are in uniform contact with oil films at all positions. The abnormal wear of the main shaft part of the crankshaft can be reduced, and the service life of the compressor can be prolonged. 1. A pump body assembly comprising:a crankshaft comprising a main shaft part and an eccentric part connected with the main shaft part;a main bearing comprising a hub part, wherein the main shaft part extends through a through hole in the hub part, and a first oil guide groove is formed in a wall defining the through hole; anda cylinder body, wherein a sliding vane slot and a center hole are formed in the cylinder body, the crankshaft extends through the center hole, and the main bearing is located at one side of the cylinder body.5. The pump body assembly according to claim 2 , wherein:the value range of the included angle formed of the first connection line in the same projection plane of the pump body assembly and a third connection line between a termination point at the other end of the first oil guide groove and the center of the through hole is smaller than or equal to 2π and greater than or equal to 3π/2.6. The pump body assembly according to claim 1 , wherein:the pump body assembly further comprises a first annular groove which is formed in the wall defining the through hole, and the first oil guide groove is communicated with the first annular ...

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Номер записи: 26
19-03-2015 дата публикации

OIL-FREE AIR COMPRESSOR FOR RAIL VEHICLES WITH AIR VENTILATION

Номер: US20150075369A1
Автор: Kapadia Neville D., Moore Roland S.
Принадлежит: WABTEC HOLDING CORP.

An oil-free compressor for a rail vehicle includes a multi-piece compressor housing, a first piston cylinder supported in a first opening in the compressor housing, a second piston cylinder supported in a second opening in the compressor housing, a multi-piece crankshaft assembly supported by the compressor housing, and an optionally filtering air plenum in fluid communication with the compressor housing interior to provide a volume of air to the compressor housing interior. The crankshaft assembly is linked to pistons of the first and second piston cylinders by respective connecting rods. The connecting rods connect to a wrist pin associated with each of the pistons, and the wrist pins are respectively supported by a dry lubricant bushing to the associated piston. The compressor housing may have a first housing portion and a second housing portion forming respective halves of the compressor housing. 1. An oil-free compressor for a rail vehicle , comprising:a compressor housing comprising at least a first housing portion and a second housing portion to define a compressor housing interior;a first piston cylinder supported in a first opening in the compressor housing;a second piston cylinder supported in a second opening in the compressor housing and fluidly connected to the first piston cylinder;a multi-piece crankshaft assembly supported by the compressor housing and linked to the pistons of the first and second piston cylinders by respective connecting rods; andan air plenum in fluid communication with the compressor housing interior to provide a volume of air to the compressor housing interior.2. An oil-free compressor as claimed in claim 1 , wherein the first housing portion and the second housing portion form respective halves of the compressor housing and are secured together with mechanical fasteners.3. An oil-free compressor as claimed in claim 1 , wherein the first piston cylinder is larger than the second piston cylinder.4. An oil-free compressor as ...

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Номер записи: 27
17-03-2016 дата публикации

COMPRESSOR WITH FLOODED START CONTROL

Номер: US20160076541A1
Автор: PHAM Hung M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A system and method for flooded start control of a compressor for a refrigeration system are provided. A sensor generates sensed data corresponding to a condition of the refrigeration system. A control module is configured to operate the compressor in a flooded-start control mode including operating the compressor according to a cycle with a first time period during which the compressor is on and a second time period during which the compressor is off. The control module operates the compressor in an initial time period, without using the flooded-start control mode, with liquid refrigerant present in the compressor and monitors the sensed data from the sensor. The control module operates the compressor in the flooded start control mode after determining the first time period, the second time period, or a number of cycles, based on the sensed data monitored during the initial time period. 1. A system comprising:a compressor for a refrigeration system;a sensor that generates sensed data corresponding to at least one condition of the refrigeration system;a control module configured to operate the compressor in a flooded-start control mode, the flooded start control mode including operating the compressor according to at least one cycle including a first time period during which the compressor is on and a second time period during which the compressor is off;wherein the control module operates the compressor in an initial time period, without using the flooded-start control mode, with liquid refrigerant present in the compressor and monitors the sensed data from the sensor; andwherein the control module operates the compressor in the flooded start control mode after determining at least one of the first time period, the second time period, and a number of cycles for the at least one cycle, based on the sensed data monitored during the initial time period.2. The system of wherein the sensor is a discharge line temperature sensor that generates temperature data ...

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Номер записи: 28
17-03-2016 дата публикации

COMPRESSOR WITH FLOODED START CONTROL

Номер: US20160076542A1
Автор: PHAM Hung M.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A system and method for flooded start control of a compressor having a crankcase heater are provided. A control module receives sensed data from a sensor, determines a current rate of liquid migration into the compressor, and compares the current rate with first and second predetermined thresholds. The control module operates the compressor in a flooded-start control mode, including operating the compressor according to at least one cycle with a first time period when the compressor is on and a second time period when the compressor is off. The control module operates the compressor in the flooded start control mode when the current rate is greater than the first predetermined threshold, activates the crankcase heater when the current rate is between the first and second predetermined thresholds, and operates the compressor without the flooded start control mode when the current rate is less than the second predetermined threshold. 1. A system comprising:a compressor for a refrigeration system, the compressor having a crankcase heater;at least one sensor that generates sensed data corresponding to at least one condition of the refrigeration system;a control module that receives the sensed data from the at least one sensor, determines a current rate of liquid migration into the compressor, and compares the current rate of liquid migration with a first predetermined threshold and a second predetermined threshold, the first predetermined threshold being greater than the second predetermined threshold;wherein the control module operates the compressor in a flooded-start control mode, the flooded start control mode including operating the compressor according to at least one cycle including a first time period during which the compressor is on and a second time period during which the compressor is off; andwherein the control module operates the compressor in the flooded start control mode in response to the current rate of liquid migration being greater than the first ...

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Номер записи: 29
15-03-2018 дата публикации

SPIN PUMP WITH SPUN-EPICYCLIC GEOMETRY

Номер: US20180073493A1
Автор: Corey John
Принадлежит: Chart Inc.

The subject matter described herein relates to a spin pump that includes a combination of a compressor and a vacuum pump on respective pistons extending from a common crankshaft in a rotating housing. Related methods, apparatuses, systems, techniques and articles are also described. 136.-. (canceled)37. A pump system with a compressor pump and a vacuum pump on a common shaft , comprising:a rotor that rotates about a first axis, the rotor having a first and a second radial piston bore each sized to contain at least one piston, wherein the first radial piston bore can serve as a vacuum pump and the second radial piston bore can serve as a compressor pump;a crankshaft defining a second axis parallel to and offset from the first axis, wherein the crankshaft rotates about the second axis and drives rotation of the rotor;wherein a first piece and a second piece mate to collectively form the rotor, wherein the first piece includes a first tongue and a second tongue that define a first space and a second space between the first tongue and the second tongue, and wherein the second piece includes a third tongue and a fourth tongue, and wherein the third tongue and the fourth tongue are positioned within the first space and the second space when the first piece and second piece are mated together;wherein the first radial piston bore extends at least partially through the first tongue and the second tongue, and the second radial piston bore extends at least partially through the third tongue and the fourth tongue.38. A pump system as in claim 37 , wherein each of the first and second pieces of the rotor forms a cylindrical portion of one of the first or second radial piston bores.39. A pump system as in claim 37 , wherein the first and second pieces are congruent.40. A pump system as in claim 37 , wherein the first piece of the rotor includes an entirety of the first piston bore that contains a piston and the second piece of the rotor includes an entirety of the second piston ...

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Номер записи: 30
19-03-2015 дата публикации

Drive mechanism for rotary compressors or pumps

Номер: US20150078932A1
Автор: Francisco Javier Ruiz Martinez
Принадлежит: Individual

Drive mechanism for rotary compressor or pump that consists of a casing ( 1 ) formed by two housings where two diametrically opposed cylinders ( 2 ), where the pistons ( 3 ) slide, are coupled, each of the pistons being attached by means of a connecting rod ( 5 ) to the end of a lever ( 4 ) which pivots about the other end ( 9 ), located on the periphery of the casing ( 1 ) and is forced by the journal of a crankshaft ( 6 ) that slides along a slot ( 7 ), made in the central area of this lever, and is operated by an external mechanism, the whole assembly being able to rotate about the crankshaft, which remains static and coupled to the structure or support and generates a linear piston cycle at each revolution.

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Номер записи: 31
16-03-2017 дата публикации

Compressor Piston Shape to Reduce Clearance Volume

Номер: US20170074259A1
Автор: Hritz Jeffrey, Mitsch Matthew D.
Принадлежит:

A piston assembly for reducing clearance volume in a reciprocating compressor for compensating for piston tilt and improving the volumetric efficiency of the compressor includes a piston located within a piston cylinder, the piston having a first end and a second end, a wrist pin associated with the first end of the piston, and a cylinder head/valve assembly associated with the second end of the piston, wherein at least a portion of the second end of the piston includes an angled portion. The piston having the angled portion can be used with oil free cylinders and trunk type pistons. The piston can also be used in a multiple stage, multiple cylinder compressor including a series of piston assemblies. A method of increasing the volumetric efficiency of a reciprocating compressor can also be achieved using the piston having an angled portion. 1. A piston assembly for use with a reciprocating compressor comprising:a piston located within a piston cylinder, said piston having a first end and a second end;a wrist pin associated with the first end of the piston;a cylinder head/valve assembly associated with the second end of the piston, wherein at least a portion of the second end of the piston includes an angled portion.2. The piston assembly of claim 1 , wherein at least a portion of the angled portion of the second end of the piston and the cylinder head/valve assembly define a clearance volume.3. The piston assembly of claim 2 , wherein the angled portion is shaped to compensate for tilt of the piston after a top dead center of the piston is reached during a reciprocating cycle of the piston.4. The piston assembly of claim 1 , wherein the wrist pin is configured to receive the first end of the piston so that the angled portion extends in a spaced orientation relative to the cylinder head/valve assembly to accommodate tilt of the piston.5. The piston assembly of claim 1 , wherein the angled portion includes a slope extending in a downward direction from a center ...

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Номер записи: 32
26-03-2015 дата публикации

Pump device

Номер: US20150086402A1
Автор: Motoyasu Chouno, Ryuji ITOYAMA, Taisuke Osaka, Yusaku Tanabe
Принадлежит: Ulvac Kiko Inc

A pump device ( 1 ) according to an embodiment of the present invention includes a drive motor (M), a first pump unit for evacuation ( 11 ) including a first pump chamber and a first piston ( 21 v ), and a second pump unit for pressurization ( 12 ) including a second pump chamber and a second piston ( 21 c ). The second piston ( 21 c ) has a phase advanced with a rotational phase difference (φ) of more than 0° and less than 80° with respect to the first piston ( 21 v ).

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Номер записи: 33
24-03-2016 дата публикации

CRANKSHAFT-TYPE VACUUM AIR PUMP AND GLASS-WIPING APPARATUS THEREOF

Номер: US20160084243A1
Автор: FENG Yongbing
Принадлежит: SUZHOU ECOVACS COMMERCIAL ROBOT CO., LTD.

A crankshaft-type vacuum air pump comprising a drive motor (), an air pump main body (), and piston air pump components () arranged on the air pump main body (). A crankshaft unit is arranged within the air pump main body (). The top of the crankshaft unit is connected to the air pump main body () via an upper eccentric wheel (), while the end is connected to the drive motor () via a lower eccentric wheel (). The drive motor () outputs power to rotate the crankshaft unit. The crankshaft unit is connected to the piston air pump components () and drives the piston air pump components into motion, thus completing air intake and air discharge of the piston air pump components (). The air pump is structurally simple and compact, the crankshaft per se is centrosymmetric, and one or more crankshaft units are made to serve as a rotary shaft, where the overall center of gravity during rotation is always located at the center of rotation and no vibration is caused by a centrifugal force. The rotary shaft is subjected to the force of piston rods on two sides that are always symmetric relative to the center of rotation, thus the rotary shaft is subjected to a radial force that is basically zero, the problem of vibration caused by unbalanced stress during rotation is greatly reduced, and a stable working state is allowed. 112324513. A crankshaft-type vacuum air pump comprising a drive motor () , an air pump main body () , and piston air pump components () arranged on the air pump main body , characterized in that , a crankshaft unit is arranged within the air pump main body () , the top of the crankshaft unit is connected to the air pump main body via an upper eccentric wheel () , while the end is connected to the drive motor via a lower eccentric wheel () , the drive motor () outputs power to rotate the crankshaft unit , the crankshaft unit is connected to the piston air pump components () and drives the piston air pump components into motion , thus completing air intake and ...

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Номер записи: 34
23-03-2017 дата публикации

Reciprocating Refrigeration Compressor and Method for Mounting a Reciprocating Refrigeration Compressor

Номер: US20170082096A1
Автор: KALLUF Flavio Jorge Haddad, SILVA Diogo Londero da, Thiessen Marcio Roberto
Принадлежит:

The compressor includes: a crankcase carrying a cylinder and a bearing hub which lodges a crankshaft; a valve plate closing one end of the cylinder; a piston reciprocating in the cylinder and driven by the rotation of the crankshaft; an electric motor having a stator affixed to the crankcase and provided with winding grooves and teeth, each tooth carrying a respective shoe, and a rotor affixed to the crankshaft and carrying magnet segments, stator, the rotor and the crankshaft are mounted in an indexed way, in order to present, in relation to one another, a relative positioning which produces, upon the stop of the electric motor and with the crankshaft and rotor being in the upper dead point condition of the piston, a cogging torque capable of taking the piston away from the upper dead point. 1. A reciprocating refrigeration compressor , comprising:a crankcase carrying a cylinder and a bearing hub which lodges a crankshaft provided with an eccentric;a valve plate closing one end of the cylinder;a piston reciprocating in the interior of the cylinder and driven by a connecting rod coupled to the eccentric of the crankshaft;an electric motor having a stator affixed to the crankcase and provided with a plurality of winding grooves intercalated with teeth, each tooth carrying a respective shoe, and a rotor affixed to the crankshaft and carrying magnet segments;the reciprocating refrigeration compressor characterized in that, in the condition of upper dead point of the piston, at least one magnet segment of the rotor has its symmetry radial axis coinciding with the symmetry radial axis of a corresponding winding groove, said symmetry radial axes being positioned between the two stator teeth adjacent to said winding groove.2. The compressor claim 1 , according to claim 1 , characterized in that the stator claim 1 , the rotor and the crankshaft present claim 1 , in relation to one another claim 1 , a relative positioning which produces claim 1 , upon the stop of the ...

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Номер записи: 35
31-03-2022 дата публикации

COMPRESSOR AND AIR CONDITIONER

Номер: US20220099080A1
Автор: Baba Kazuhiko
Принадлежит:

A compressor includes a motor, a compression mechanism portion driven by the motor, and a rotation shaft connecting the motor and the compression mechanism portion. At least a part of the rotation shaft is composed of a material having a higher Young's modulus than that of cast iron, and having a higher thermal conductivity than that of cast iron. 1. A compressor comprising:a motor;a compression mechanism portion driven by the motor; anda rotation shaft connecting the motor and the compression mechanism portion,wherein the rotation shaft has a first shaft portion on an inner side in a radial direction about a rotation center of the rotation shaft, and has a second shaft portion on an outer side of the first shaft portion in the radial direction, andwherein the first shaft portion is composed of a material having a higher Young's modulus than that of cast iron and having a higher thermal conductivity than that of cast iron.2. The compressor according to claim 1 , wherein the at least a part of the rotation shaft is composed of carbon fiber reinforced plastic.3. The compressor according to claim 1 , wherein the rotation shaft has an eccentric shaft portion which is eccentric with respect to a rotation center of the rotation shaft claim 1 , andwherein the compression mechanism portion has a rolling piston attached to the eccentric shaft portion and a cylinder chamber in which the eccentric shaft portion and the rolling piston are disposed.4. (canceled)5. The compressor according to claim 1 , wherein the first shaft portion and the second shaft portion extend from one end to the other end of the rotation shaft in an axial direction of the rotation shaft.60110. The compressor according to claim 1 , wherein when D represents an outer diameter of the rotation shaft in the radial direction and D represents an outer diameter of the first shaft portion in the radial direction claim 1 , D<0.9×D is satisfied.7. The compressor according to claim 1 , wherein the second shaft ...

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Номер записи: 36
31-03-2022 дата публикации

PACKAGING RING WITH WEAR OPENING

Номер: US20220099183A1
Автор: Janko-Grasslober Marian, KAUFMANN Andreas, Kornfeld Matthias, Lagler Martin, SPIEGL Bernhard
Принадлежит:

Various embodiments of the present disclosure are directed to packing rings. In one example embodiment, a packing ring includes a first axial ring end, a second axial ring end, at least three ring segments, and at least one wear opening, The at least one wear opening on at least one of the the at least three ring segments, and extends from a radially outside outer circumferential surface and/or the second axial ring end of the ring segment in the direction of a radially inside inner circumferential surface of the ring segment. A radially inside wear opening end of the at least one wear opening faces toward the inner circumferential surface and is spaced apart in the radial direction of the ring segment from the radially insider inner circumferential surface of the ring segment at a distance which is at most 40% of a radial ring height. 1. A packing ring comprising:a first axial ring end;a second axial ring end;at least three ring segments, each of the at least three ring segments having a first segment end and a second segment end in a circumferential direction;the first segment end including a first tangential contact surface and a first axial contact surface, the first axial contact surface facing towards the first axial ring end; andthe second segment end including a second tangential contact surface and a second axial contact surface, the second axial contact surface facing towards the second axial ring end, wherein the first tangential contact surface or each ring segment abuts the second tangential contact surface adjoining in the circumferential direction for creating a radial seal of the packing ring and the first axial contact surface of each ring segment abuts the second axial contact surface of a ring segment adjoining in the circumferential direction for creating an axial seal of the packaging ringat least one wear opening on at least one ring segment of the at least three ring segments, the at least one wear opening extending from a radially outside ...

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Номер записи: 37
29-03-2018 дата публикации

COMPRESSION UNIT FOR A VOLUMETRIC COMPRESSOR WITHOUT LUBRIFICATION

Номер: US20180087493A1
Автор: Repaci Massimo
Принадлежит:

A compression unit, for a volumetric compressor, includes at least one cylinder, at least one piston, a drive shaft, operable in rotation around a rotation axis and associated with the at least one piston through a connecting rod/crankshaft kinematic mechanism, a casing for supporting the at least one cylinder and for housing at least one portion of the drive shaft and of the connecting rod/crankshaft kinematic mechanism, and which includes at least one air intake in communication with the outside of the compression unit and defining at least one passage for the air to be drawn therein and to be supplied to the at least one cylinder; the air intake is in fluid communication with the interior of the at least one cylinder through a path which is extended inside the casing and through at least one section of a wall of the at least one cylinder. 1. A compression unit , for a volumetric compressor , comprising at least one cylinder for the suction and the compression of air by means of at least one piston sliding in said at least one cylinder , said at least one cylinder comprising at least one suction conduit extending at the internal wall of said at least one cylinder ,a drive shaft, operable in rotation around a rotation axis and associated with at least one piston through a connecting rod/crankshaft kinematic mechanism, the rotation of said drive shaft controlling the reciprocating motion of said at least one piston,a casing configured to receive and support said at least one cylinder and for housing of at least one portion of said drive shaft and of said connecting rod/crankshaft kinematic mechanism,wherein said casing comprises at least one air intake in communication with the outside of said compression unit and delimiting at least one passage for the air to drawn therein and to supply to said at least one cylinder, in which said at least one air intake is in fluid communication with the inside of said at least one cylinder through a path which develops inside ...

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Номер записи: 38
05-05-2022 дата публикации

PACKAGING RING WITH RELIEF OPENING

Номер: US20220136494A1
Автор: Janko-Grasslober Marian, KAUFMANN Andreas, Kornfeld Matthias, Lagler Martin, SPIEGL Bernhard
Принадлежит:

Various embodiments of the present disclosure are directed to packing rings. In one example embodiment, a packing ring is disclosed including first and second axial ring ends, at least three ring segments, and at least three relief openings. The at least three relief openings each have a first relief opening end opening into the radially inside inner circumferential surface of the ring segment. The first relief opening ends of two relief openings arranged adjacent to one another in the circumferential direction are spaced apart from one another at a relief opening circumferential distance. The first relief opening ends are closer in the axial direction to the first axial ring end than to the second axial ring end and are spaced apart at a relief opening axial distance from the first axial ring end, which is 4% to 20% of the axial ring width of the ring segment.

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Номер записи: 39
19-03-2020 дата публикации

CONTROL DEVICE AND METHOD FOR OPERATING A REFRIGERANT COMPRESSOR

Номер: US20200088188A1
Автор: Freiberger Alfred
Принадлежит:

Electronic control device for a refrigerant compressor, comprising at least one drive unit and a compression mechanism which is in operative connection with the drive unit and has at least one piston which, in an operating state of the refrigerant compressor, moves back and forth in a cylinder of a cylinder block of the refrigerant compressor for the operational compression of refrigerant and is driven by a crankshaft of the drive unit, wherein the electronic control device of the refrigerant compressor is at least designed to detect at least one physical process parameter, preferably the rotational speed (n) of the crankshaft or the power consumption of the refrigerant compressor, and to detect a switch-off signal directed at the refrigerant compressor, said switch-off signal terminating a refrigerant compressor operating phase in which the refrigerant compressor is operated as intended with a positive operating torque; and is also designed to regulate a torque applied by the drive unit to the crankshaft so as to adjust the rotational speed (n) of the crankshaft, wherein the electronic control device is further designed to apply a braking torque to the crankshaft immediately after detecting the switch-off signal, wherein the braking torque is applied in the opposite direction to the positive torque acting during the operating phase and the value of this braking torque is a function of the detected physical process parameter, preferably the rotational speed (n) of the crankshaft or the power consumption of the refrigerant compressor. 2. The electronic control device as in claim 1 , wherein the physical process parameter is the rotary speed (n) of the crankshaft.3. The electronic control device as in claim 1 , wherein the value of the braking torque applied to the crankshaft immediately after detection of the shutoff signal is inversely proportional to the rotary speed (n) of the crankshaft that the crankshaft has at the moment of the detection of the shutoff signal. ...

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Номер записи: 40
12-05-2022 дата публикации

HERMETIC COMPRESSOR

Номер: US20220145872A1
Автор: JEONG Mingeon, KIM Seeun, Park Bokann, Park Kyoungjun
Принадлежит:

A hermetic compressor may include a frame, a crankshaft, and an oil pump. The crankshaft may be rotatably mounted to the frame. The oil pump may be mounted to a lower portion of the crankshaft to be rotatable together with the crankshaft. The oil pump may pump oil from a lower region to an upper region of a shell using centrifugal force. The crankshaft may be provided with a hollow hole therein that is inclined in two directions with respect to an axial direction of the crankshaft. This may result in increasing a dynamic pressure for scattering the oil to the upper region of the shell and an oil supply amount. 1. A hermetic compressor , comprising:a frame disposed inside of a shell;a crankshaft having a hollow hole therein and rotatably mounted to the frame; andan oil pump mounted to a lower portion of the crankshaft and having an impeller rotatable together with the crankshaft, wherein a first side of the impeller is immersed in oil stored in a lower region of the shell and a second side of the impeller communicates with the hollow hole such that the oil is pumped from the first side to the second side by centrifugal force, and wherein the hollow hole comprises an inclined hole inclined in two directions with respect to an axial direction of the crankshaft to apply a dynamic pressure for scattering the oil to an upper region of the shell.2. The hermetic compressor of claim 1 , wherein the inclined hole is inclined in a first direction and a second direction with respect to the axial direction claim 1 , wherein the first direction has an inclination angle smaller than 90 degrees between the axial direction and an X-axis direction perpendicular to the axial direction claim 1 , and wherein the second direction has an inclination angle smaller than 90 degrees between the axial direction and a Y-axis direction perpendicular to the axial direction.3. The hermetic compressor of claim 1 , wherein the crankshaft comprises:a lower communication hole that extends outward from ...

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Номер записи: 41
12-05-2022 дата публикации

PACKAGING RING WITH DIAGONAL RELIEF OPENING

Номер: US20220145991A1
Автор: Janko-Grasslober Marian, KAUFMANN Andreas, Kornfeld Matthias, Lagler Martin, SPIEGL Bernhard
Принадлежит:

Various embodiments of the present disclosure are directed to packing rings. In one example embodiment, a packaging ring is disclosed including a first axial ring end, a second axial ring end, at least three ring segments, a radial seal and at least one relief opening. Each of the at least three ring segments having a first segment end and a second segment end in a circumferential direction. A first segment end of one of the three ring segments including a first tangential contact surface and a first axial contact surface, the first axial contact surface facing towards the first axial ring end. A second segment end of another of the three ring segments including a second tangential contact surface and a second axial contact surface, the second axial contact surface facing towards the second axial ring end. 1. A packing ring comprising:a first axial ring end;a second axial ring end;at least three ring segments, each of the at least three ring segments having a first segment end and a second segment end in a circumferential direction,the first segment end including a first tangential contact surface and a first axial contact surface, the first axial contact surface facing towards the first axial ring end, andthe second segment end including a second tangential contact surface and a second axial contact surface, the second axial contact surface facing towards the second axial ring end, wherein the first tangential contact surface abuts the second tangential contact surface of the ring segment adjoining in the circumferential direction for creating;a radial seal of the packing ring and the first axial contact surface face of each ring segment abuts the second axial contact surface of a ring segment adjoining in the circumferential direction for creating an axial seal of the packaging ring;{'b': '2', 'at least one relief opening provided on at least one ring segment, the at least one relief opening extending from a radially inside inner circumferential surface of the ...

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Номер записи: 42
28-03-2019 дата публикации

RECIPROCATING TYPE COMPRESSOR

Номер: US20190093646A1
Автор: Kim Jinkook, Kim Kyeong Ho, KIM Seungwook
Принадлежит:

A reciprocating type compressor may include a crank shaft that is coupled to a rotor of a motor to receive a rotational force and a connecting rod that is coupled to a pin of the crank shaft and converts a rotational force of the crank shaft into a linear motion of a piston. The connecting rod may include a first end having a tubular body that includes a pin insertion hole into which the pin of the crank shaft is inserted and a socket that projects from the tubular body, a second end coupled with the piston, and a main body that extends between the first end and the second end and having a ball that is received inside of the socket. 1. A reciprocating type compressor , comprising:a crank shaft configured to be coupled to a rotor of a motor to receive a rotational force of the motor; a first end that includes a tubular body having a pin insertion hole into which the pin of the crank shaft is inserted and a socket that projects from the tubular body;', 'a second end formed at an opposite side of the first end and configured to be coupled with the piston; and', 'a main body that extends between the first end and the second end and includes a ball configured to be received in the socket., 'a connecting rod configured to be coupled to a pin of the crank shaft to convert the rotational force of the crank shaft into a linear motion of a piston, wherein the connecting rod comprises2. The reciprocating type compressor of claim 1 , wherein the tubular body includes a first insertion hole through which the ball is configured to pass provided at a side opposite to a side from which the socket projects claim 1 , and wherein the socket includes a second insertion hole through which the second end and the main body are configured to pass.3. The reciprocating type compressor of claim 2 , wherein the first insertion hole is a circular hole having a diameter equal to or larger than a diameter of the ball.4. The reciprocating type compressor of claim 2 , wherein the second insertion ...

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Номер записи: 43
28-03-2019 дата публикации

RECIPROCATING TYPE COMPRESSOR

Номер: US20190093649A1
Автор: KANG Wonseok, KIM Seungwook, LEE Jongmok
Принадлежит:

A reciprocating type compressor includes a crank shaft that is coupled to a rotor of a motor to transfer a rotational force, a piston that compresses a refrigerant while linearly moving within a cylinder of a compression portion, a connecting rod that connects the crank shaft to the piston to convert a rotational force of the crank shaft into a linear motion of the piston, and a cylinder boss integral body in which the cylinder and a boss that encloses the crank shaft are integrally formed at right angles to each other. 1. A reciprocating type compressor , comprising:a cylinder boss integral body in which a cylinder and a boss are integrally formed at right angles to each other;a crank shaft that is coupled to a rotor of a motor to transfer a rotational force from the rotor to the crank shaft;a piston that compresses a refrigerant while linearly moving within the cylinder; anda connecting rod that connects the crank shaft to the piston to convert the rotational force of the crank shaft into a linear motion of the piston.2. The reciprocating type compressor of claim 1 , wherein the cylinder boss integral body comprises:the cylinder which provides a compression space at an interior thereof so that the piston compresses a refrigerant while linearly moving;the boss which is connected to the cylinder and extends axially in a direction perpendicular to a direction in which the cylinder extends, and includes a shaft insertion hole into which the crank shaft is inserted; anda right angle connecting frame that connects the cylinder and the boss so that an angle between the cylinder and the boss is a right angle.3. The reciprocating type compressor of claim 2 , wherein the right angle connecting frame comprises:a first connecting frame that extends in a cross-sectional direction of the cylinder and has a plate shape; anda second connecting frame that extends in a cross-sectional direction of the boss and has a plate shape so that the second connecting frame is at a right ...

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Номер записи: 44
06-04-2017 дата публикации

VARIABLE CAPACITY RECIPROCATING COMPRESSOR

Номер: US20170096997A1
Автор: WALLIS FRANK S.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A reciprocating compressor may include a shell, a first cylinder, a plate, a second cylinder, and a piston. The first cylinder may be disposed within the shell and may include a first valve. The plate may be fixed relative to the first cylinder and may include a second valve. The second cylinder may be axially aligned with the first cylinder and may be moveable relative to the first cylinder between first and second positions. The piston may be disposed within the second cylinder and may include a third valve. The piston may reciprocate relative to the first and second cylinders. The piston and the plate may define a first compression chamber therebetween. The piston and the first cylinder may define a second compression chamber therebetween. A fluid-injection passage extending through the first cylinder selectively provides a working fluid from a source to the second compression chamber. 1. A reciprocating compressor comprising:a shell;a first cylinder disposed within said shell and including a first valve;a plate fixed relative to said first cylinder and including a second valve;a second cylinder axially aligned with said first cylinder and moveable relative to said first cylinder between first and second positions; anda piston disposed within said second cylinder and including a third valve, said piston reciprocating relative to said first and second cylinders, said piston and said plate defining a first compression chamber therebetween, said piston and said first cylinder defining a second compression chamber therebetween;a fluid-injection passage extends through said first cylinder and provides a working fluid to said second compression chamber;a fluid-injection valve in said fluid-injection passage is moveable between an open position allowing fluid to be injected into said second compression chamber through said fluid-injection passage and a closed position restricting fluid communication between said second compression chamber and said fluid-injection ...

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Номер записи: 45
02-06-2022 дата публикации

CRANKSHAFT, COMPRESSOR, AND REFRIGERATION DEVICE

Номер: US20220170449A1
Автор: Huang Gang, SONG Dongdong, WANG Chengcheng
Принадлежит: ANHUI MEIZHI COMPRESSOR CO., LTD.

A crankshaft is provided. The crankshaft has a first shaft, a second shaft and a first crank arm. A first oil passage is formed in the first shaft along an axis direction of the shaft. A second oil passage is formed in the second shaft along an axis direction of the shaft. The first crank arm is configured to be connected between the first shaft and the second shaft. The first crank arm is provided with a third oil passage. The third oil passage is configured to communicate the first oil passage and the second oil passage. The second shaft is eccentrically provided relative to the axis of the first shaft. A compressor having the crankshaft and a refrigeration device having the compressor are also provided. 1. A crankshaft comprising:a first shaft, a first oil passage being formed in the first shaft along an axis direction thereof;a second shaft, a second oil passage being formed in the second shaft along an axis direction thereof; anda first crank arm, being configured to connect the first shaft and the second shaft, the first crank arm being provided with a third oil passage, and the third oil passage being configured to communicate the first oil passage with the second oil passage,wherein the second shaft is eccentrically provided relative to an axis of the first shaft.2. The crankshaft according to claim 1 , further comprising:a second crank arm being configured to connect the second shaft to the first crank arm, the second crank arm being provided with a fourth oil passage for communicating the second oil passage with the third oil passage.3. The crankshaft according to claim 2 , whereinthe first crank arm is integrally molded with the first shaft;the second crank arm is integrally molded with the second shaft; andthe first crank arm and the second crank arm are connected together.4. The crankshaft according to claim 1 , whereinin any one of cross sections of the first shaft, the first oil passage does not have a constant wall thickness.5. The crankshaft ...

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Номер записи: 46
29-04-2021 дата публикации

HERMETIC REFRIGERANT COMPRESSOR AND REFRIGERATOR-FREEZER USING THE SAME

Номер: US20210123426A1
Автор: Akashi Hironari, GONDO Masanobu, HAYASHI Hiroto, Ide Terumasa, KAWABATA Hirotaka, YAGI Akio
Принадлежит: Panasonic Appliances Refrigeration Devices Singapore

A hermetic refrigerant compressor () includes a sealed container () in which lubricating oil () having a kinematic viscosity in a range of 1 to 9 mm/S at 40° C. is stored, the lubricating oil () containing a sliding modifier that is either sulfur or a sulfur-containing compound. A compression element () includes a shaft part that is a crank shaft (). In a case where a sliding surface of a main shaft () is a single sliding surface, a length of the single sliding surface in an axial direction is a single sliding length L, whereas in a case where the sliding surface is divided into a plurality of sliding surfaces, a length of one of the sliding surfaces in the axial direction, the one sliding surface having the least length in the axial direction among the plurality of sliding surfaces, is the single sliding length L, and a ratio L/D of the single sliding length L to an external diameter D of the main shaft () is less than or equal to 0.51. 1. A hermetic refrigerant compressor comprising a sealed container in which lubricating oil having a kinematic viscosity in a range of 1 mm/S to 9 mm/S at 40° C. is stored , the sealed container accommodating an electric element and a compression element , the compression element being driven by the electric element and configured to compress a refrigerant , wherein a shaft part that is a crank shaft including a main shaft and an eccentric shaft; and', 'a bearing part that pivotally supports the shaft part, the bearing part including a main bearing and an eccentric bearing, the main bearing pivotally supporting the main shaft, the eccentric bearing pivotally supporting the eccentric shaft,, 'the compression element includesthe main shaft includes a sliding surface that slides on the main bearing, the sliding surface being either a single sliding surface or divided into a plurality of sliding surfaces,in a case where the sliding surface is the single sliding surface, a length of the single sliding surface in an axial direction is a ...

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Номер записи: 47
02-04-2020 дата публикации

COMPRESSOR, COMPRESSED AIR SUPPLY FACILITY FOR OPERATING A PNEUMATIC SYSTEM, AND METHOD FOR OPERATING A COMPRESSED AIR SUPPLY FACILITY

Номер: US20200102947A1
Автор: Bredbeck Klaus, Stabenow Uwe, WICHERN Jonas
Принадлежит:

A compressor for a compressed-air feed of a compressed-air supply installation, for operating a pneumatic installation, includes: a first compression space; a second compression space; an air feed port; a compressed-air outlet; and a piston having a first face side, which is subjectable to pressure and which is directed toward the first compression space, and a second face side, situated opposite the first face side, which is subjectable to pressure and which is directed toward the second compression space, the first compression space being delimited by the first face side and the second compression space being delimited by the second face side. The first face side includes a full side and the second face side includes a step side. The piston is attached via a connecting rod to a drive. The first compression space and the second compression space are connected to one another via a connecting line. 1. A compressor for a compressed-air feed of a compressed-air supply installation , for operating a pneumatic installation , comprising:a first compression space;a second compression space;an air feed port;a compressed-air outlet; and,a piston having a first face side, which is subjectable to pressure and which is directed toward the first compression space, and a second face side, which is situated opposite the first face side and which is subjectable to pressure and which is directed toward the second compression space, wherein the first compression space being delimited by the first face side and the second compression space being delimited by the second face side,wherein the first face side comprises a full side and the second face side comprises a step side,wherein the piston is attached via a connecting rod to a drive,whereinthe first compression space and the second compression space are connected to one another via a connecting line,whereinthe connecting rod is connected rigidly at a piston side to the piston and, at a drive side, is connected rotatably to a ...

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Номер записи: 48
28-04-2016 дата публикации

PISTON DRIVE DEVICE

Номер: US20160115949A1
Автор: OKADA Eiji, UEDA Kazuhiro
Принадлежит:

A piston drive device includes: a crankcase; first and second compression cylinders fixed to the crankcase; first and second vacuum cylinders fixed to the crankcase; a rotational shaft rotatably supported within the crankcase; first and second compression pistons connected to the rotational shaft and reciprocating respectively within the first and second compression cylinders; and first and second vacuum pistons connected to the rotational shaft and reciprocating respectively within the first and second vacuum cylinders; wherein each diameter of piston heads of the first and second compression pistons is smaller than each diameter of piston heads of the first and second vacuum pistons, and the first and second compression pistons are connected to the rotational shaft so as to sandwich the first and second vacuum pistons in an axial direction of the rotational shaft. 1. A piston drive device comprising:a crankcase;first and second compression cylinders fixed to the crankcase;first and second vacuum cylinders fixed to the crankcase;a rotational shaft rotatably supported within the crankcase;first and second compression pistons connected to the rotational shaft and reciprocating respectively within the first and second compression cylinders; andfirst and second vacuum pistons connected to the rotational shaft and reciprocating respectively within the first and second vacuum cylinders;wherein each diameter of piston heads of the first and second compression pistons is smaller than each diameter of piston heads of the first and second vacuum pistons, andthe first and second compression pistons are connected to the rotational shaft so as to sandwich the first and second vacuum pistons in an axial direction of the rotational shaft.2. The piston drive device of claim 1 , whereinfirst and second compression chambers are respectively formed within the first and second compression cylinders,capacities of the first and second compression chambers are increased and decreased by ...

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Номер записи: 49
28-04-2016 дата публикации

Refrigerant compressor shaft seal

Номер: US20160116071A1
Автор: Richard T. Pandzik
Принадлежит: Carrier Corp

A shaft sealing mechanism is provided including a first component having a first surface and a second component having a second surface. The first component and the second component are arranged in contact such that the first surface and the second surface form a dynamic interface. The first surface includes a conformable carbon or carbon-graphite material. The second surface includes a rigid, highly polished, silicon carbide material having a plurality of graphite particles embedded therein.

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Номер записи: 50
26-04-2018 дата публикации

Compressor Crankcase Heating Control Systems And Methods

Номер: US20180112902A1
Автор: Hung Pham
Принадлежит: Emerson Climate Technologies Inc

A crankcase heating control system for a heat pump system includes a data receiving module and a power control module. The data receiving module is configured to receive: data indicative of a temperature of a compressor of the heat pump system; and data indicative of an ambient temperature. The power control module is configured to: selectively apply power to a heater of a crankcase of the compressor; and disable the heater when all of: a period since the compressor was last turned is greater than a predetermined period; the ambient temperature is less than a predetermined temperature; and the temperature of the compressor is less than the predetermined temperature.

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Номер записи: 51
05-05-2016 дата публикации

Reciprocating compressor system

Номер: US20160123314A1
Автор: Kirill M. Ignatiev, Michael M. Perevozchikov
Принадлежит: Emerson Climate Technologies Inc

A compressor may include a crankcase, a crankshaft, a piston, a discharge valve and a suction plenum. The crankcase defines a discharge plenum receiving working fluid at a first pressure. The crankshaft is disposed within the discharge plenum. The piston is drivingly connected to the crankshaft and reciprocatingly received in a cylinder. The piston and cylinder cooperate to define a compression chamber therebetween. The discharge valve may control fluid flow through a discharge passage between the compression chamber and the discharge plenum. The suction plenum may receive working fluid at a second pressure that is less than the first pressure. The suction plenum may provide working fluid at the second pressure to the compression chamber.

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Номер записи: 52
04-05-2017 дата публикации

VARIABLE DISPLACEMENT SWASH PLATE COMPRESSOR

Номер: US20170122300A1
Автор: KONO Masayuki, Sakamoto Katsumi, Teraya Takanori, WATANABE Kazuto
Принадлежит: VALEO JAPAN CO., LTD.

To provide a piston compressor capable of preventing excessive oil from accumulating in a crank chamber in any operation state while securing the supply of oil to a swash plate. In a piston compressor in which an oil separation passage () is formed in a shaft () and a crank chamber () communicates with a suction chamber () through the oil separation passage (), a supply passage () opens at a region of a cylinder block () opposed to a swash plate () to thereby allow a working fluid introduced from a discharge chamber () into the crank chamber () to be supplied to the swash plate () and a bypass passage () allowing the crank chamber () to constantly communicate with the suction chamber () is provided to thereby prevent the accumulation of excessive oil in the crank chamber () regardless of the operation condition. The bypass passage () communicates with the crank chamber () at a region positioned in the outer side of a rotation trajectory of the swash plate () in the radial direction. 1. A variable displacement swash plate compressor comprising:a cylinder block in which a plurality of cylinder bores are formed;a front housing assembled to a front side of the cylinder block to define a crank chamber;a rear housing attached to a rear side of the cylinder block, in which a suction chamber and a discharge chamber are formed;pistons arranged in respective cylinder bores of the cylinder block so as to reciprocate;a shaft supported by the front housing and the cylinder block so as to rotate freely;a swash plate rotating integrally with the shaft and attached to the shaft so that a tilt angle is variable; andshoes interposed between a peripheral edge portion of the swash plate and the pistons so as to slide, converting a rotating motion of the swash plate into a reciprocating motion of the pistons,wherein a supply passage allowing the discharge chamber to communicate with the crank chamber and a release passage allowing the crank chamber to communicate with the suction ...

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Номер записи: 53
28-05-2015 дата публикации

COMPRESSOR

Номер: US20150147203A1
Автор: KIM Jung Hyoun
Принадлежит: SAMSUNG ELECTRONICS CO., LTD.

A compressor may include a hermetic case to store oil in a lower portion thereof, a compression mechanism part to compress a refrigerant, a power train part to generate a driving force, a rotational shaft to transmit the driving force generated from the power train part to the compression mechanism part and including a hollow portion and a female screw part formed at the hollow portion, and an oil pumping member inserted into the hollow portion of the rotational shaft and including an oil pumping part which moves the oil stored in the lower portion of the hermetic case up and a male screw part which is coupled to the female screw part of the rotational shaft. Since the oil pumping member and the rotational shaft are firmly coupled to each other, the reliability of the oil supplying is improved. 1. A compressor comprising:a hermetic case to store oil in a lower portion thereof;a compression mechanism part to compress a refrigerant;a power train part to generate a driving force;a rotational shaft to transmit the driving force generated from the power train part to the compression mechanism part, and comprising a hollow portion and a female screw part formed at the hollow portion; andan oil pumping member inserted into the hollow portion of the rotational shaft, and comprising an oil pumping part which moves the oil stored in the lower portion of the hermetic case up and a male screw part which is coupled to the female screw part of the rotational shaft.2. The compressor according to claim 1 , wherein the oil pumping member is a coil spring.3. The compressor according to claim 1 , wherein the oil pumping member is fixed to the rotational shaft and thus rotated together with the rotational shaft.4. The compressor according to claim 1 , wherein the male screw part is formed at one side of the oil pumping member claim 1 , and the oil pumping part is formed at the other side of the oil pumping member.5. The compressor according to claim 1 , wherein the male screw part has ...

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Номер записи: 54
28-05-2015 дата публикации

Air compressor

Номер: US20150147208A1
Автор: Chi-Wen Chen
Принадлежит: Individual

The air compressor contains a casing member, a driving member, and a cylinder member. The casing member has a first accommodation section, a second accommodation section, and a connection section connecting the first and second accommodation sections. The first accommodation section has a number of first inlets and first outlets. The driving member is located between the first and second accommodation sections, and is adjacent to the first outlets. The cylinder member is located both in the second accommodation section and the connection section, and is adjacent to the second outlets. The outside cool air is drawn into the casing member through the first inlets. A portion of the drawn air is released through the first outlets, forming a first flow path for cooling down the driving member. Another portion is released through the second outlets, forming a second flow path for cooling down the cylinder member.

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Номер записи: 55
07-06-2018 дата публикации

Rotary Valve for a Reversible Compressor

Номер: US20180156209A1
Автор: HAMMERQUIST Robert E., HARTNEY Steven A., KAY Steven D., SHAPIRO Jeffrey S.
Принадлежит:

A two-way flow rotary valve for a reversible compressor is disclosed. The two-way flow rotary valve comprises a tubular member with a first end and a second end. Two or more low friction face seals are disposed around the tubular member between the first end and the second end and a central section is disposed between the two or more low friction face seals. The two or more low friction face seals allow the central section to rotate within a substantially cylindrical receiver of a cylinder head. A gas port extends through the tubular member and is configured to allow the rotary valve to selectively exchange gas with a cylinder (when used as a compressor and when used as an air motor). 1. A two-way flow rotary valve for a reversible compressor comprising:a tubular member with a first end and a second end;two or more low friction face seals disposed around the tubular member between the first end and the second end;a central section disposed between the two or more low friction face seals, wherein the two or more low friction face seals allow the central section to rotate within a substantially cylindrical receiver of a cylinder head; anda gas port extending radially through the tubular member that is configured to allow the rotary valve to selectively exchange gas with a compression chamber.2. The two-way flow rotary valve of claim 1 , wherein the face seals are composed of silicon carbide.3. The two-way flow rotary valve of claim 2 , wherein the silicon carbide face seals allow the rotary valve to rotate into fluid communication with the compression chamber when the pressure of the compression chamber is up to approximately 6000 psi.4. The two-way flow rotary valve of claim 1 , wherein the central section further comprises:an outer surface, and the rotary valve is mounted within the substantially cylindrical receiver of the cylinder head so that a gap is provided between the outer surface and the substantially cylindrical receiver.5. The two-way flow rotary valve of ...

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Номер записи: 56
07-06-2018 дата публикации

Refrigeration cycle device

Номер: US20180156217A1
Автор: Akihiro Kyogoku, Akira Fujitaka, Fuminori Sakima, Hideaki Matsuo, Hiroaki Nakai, Kenji Takaichi, Shigehiro Sato
Принадлежит: Panasonic Intellectual Property Management Co Ltd

The present invention includes a refrigeration cycle circuit that includes compressor, indoor heat exchanger, expansion valve, and outdoor heat exchanger that are connected to each other. A working fluid containing R1123 (1,1,2-trifluoroethylene) and R32 (difluoromethane) is used as a refrigerant sealed in the refrigeration cycle circuit, and an electric motor driving device that drives an electric motor of compressor includes a rotational speed estimator. The rotational speed estimator estimates rotational speed based on information on a detection value of an electric current input to the electric motor or a magnetic pole position of a rotor that constitutes the electric motor.

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Номер записи: 57
14-05-2020 дата публикации

SEALED REFRIGERANT COMPRESSOR AND REFRIGERATION DEVICE INCLUDING SAME

Номер: US20200149520A1
Автор: HAYASHI Hiroto, KAWABATA Hirotaka, Oyagi Shingo
Принадлежит: Panasonic Appliances Refrigeration Devices Singapore

A sealed refrigerant compressor () includes: a compression element () accommodated in a sealed container () and configured to compress a refrigerant; and an electric element () configured to drive the compression element (). Lubricating oil () is stored in the sealed container (). A resin member is included as a member accommodated in the sealed container (). The amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member. Kinetic viscosity of the lubricating oil at 40° C. falls within a range of 0.1 to 5.1 mm/s. A flash point of the lubricating oil is 110° C. or more. 1. A sealed refrigerant compressor comprising:a compression element accommodated in a sealed container and configured to compress a refrigerant; andan electric element configured to drive the compression element, wherein:lubricating oil is stored in the sealed container;a resin member is included as a member accommodated in the sealed container;an amount of oligomer contained in the resin member is 2.5 wt. % or less of an entire weight of the resin member;{'sup': '2', 'kinetic viscosity of the lubricating oil at 40° C. falls within a range of 0.1 to 5.1 mm/s; and'}a flash point of the lubricating oil is 110° C. or more.2. The sealed refrigerant compressor according to claim 1 , wherein the amount of oligomer falls within a range of 0.01 to 1 wt. % of the entire weight of the resin member.3. The sealed refrigerant compressor according to claim 1 , wherein the oligomer is dimer claim 1 , trimer claim 1 , or tetramer or contains at least one of the dimer claim 1 , the trimer claim 1 , and the tetramer.4. The sealed refrigerant compressor according to claim 1 , wherein at least a stabilizing agent is added as an additive to the lubricating oil claim 1 , and a content of the stabilizing agent added falls within a range of 0.1 to 10 wt. % of an entire amount of the lubricating oil.5. The sealed refrigerant compressor according to claim 4 , wherein the ...

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Номер записи: 58
14-05-2020 дата публикации

Eccentric sleeve for crankshaft of compressor, crankshaft, crankshaft assembly and compressor

Номер: US20200149521A1
Автор: Gang Huang, Xuebao SHEN
Принадлежит: Anhui Meizhi Compressor Co Ltd

An eccentric sleeve for a crankshaft of a compressor, a crankshaft, a crankshaft assembly, and a compressor are provided. The crankshaft has a main shaft, a counterbalance and an eccentric shaft. The main shaft and the eccentric shaft are provided at two sides of the counterbalance and arranged eccentrically. The main shaft is internally provided with a main lubrication oil passage. An outer circumferential wall of the eccentric shaft is provided with an oil leakage hole in fluid communication with the main lubrication oil passage. The eccentric sleeve is fitted over the eccentric shaft. An outer circumferential wall of the eccentric sleeve is provided with a shaft flow hole extending through the outer circumferential wall in a thickness direction of the eccentric sleeve.

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Номер записи: 59
16-06-2016 дата публикации

COMPRESSOR

Номер: US20160169216A1
Автор: NAGURA Kenji, Okuno Takashi
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

A compressor of the present invention comprises a crankshaft, a first compression part, and a second compression part for further compressing a gas discharged from the first compression part. The first compression part comprises a first reciprocating motion conversion part, a first pressing part, and a first cylinder body comprising a plurality of cylinder components, while the second compression part comprises a second reciprocating motion conversion part, a second pressing part, and a second cylinder body comprising a plurality of cylinder components. The number of the cylinder components of the second cylinder body is smaller than that of the cylinder components of the first cylinder body. 1. A compressor comprising:a crankshaft;a first compression part for compressing a gas: anda second compression part for further compressing the gas discharged from the first compression part, wherein a first reciprocating motion conversion part connected to the crankshaft, linearly reciprocating with a rotation of the crankshaft;', 'a first pressing part connected to the first reciprocating motion conversion part, capable of compressing a gas; and', 'a first cylinder body for storing the first pressing part,', 'the first cylinder body comprising a plurality of cylinder components mutually fitted together in a state of being arranged along a moving direction of the first pressing part, a plurality of compression chambers being arranged corresponding to the plurality of cylinder components, allowing a gas compression by the first pressing part, and, 'the first compression part comprises a second reciprocating motion conversion part connected to the crankshaft, linearly reciprocating with a rotation of the crankshaft;', 'a second pressing part connected to the second reciprocating motion conversion part, capable of compressing a gas; and', 'a second cylinder body for storing the second pressing part,', 'the second cylinder body comprising a plurality of cylinder components ...

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Номер записи: 60
14-06-2018 дата публикации

DEVICE AND METHOD FOR EXTENDING THE LIFESPAN OF A SHAFT SEAL FOR AN OPEN-DRIVE COMPRESSOR

Номер: US20180163871A1
Автор: DYKES David John, FRITTS Ryan Michael, KAISER Joseph Robert, PRICE Ralph David
Принадлежит:

A device and method for extending the lifespan of a shaft seal for an open-drive compressor is provided. The device and method can also reduce and/or prevent deterioration of the shaft seal regardless of the operation condition of the open-drive compressor. The device and method can further reduce and/or prevent leakage of a lubricant and/or refrigerant that can cause deterioration of components within a transport refrigeration unit (TRU). 120-. (canceled)21. A drive ring for an open-drive compressor for engaging a shaft seal of the open-drive compressor , wherein the open-drive compressor includes a crankshaft having a lubricant channel positioned within the crankshaft , and a shaft seal engaging the crankshaft , the drive ring comprising:one or more engagement surfaces in direct contact with the shaft seal; anda flow path for directing a flow of lubricant away from the crankshaft, and from one side of the drive ring to a shaft seal cavity side of the drive ring, andwherein the flow path receives the flow of lubricant from the lubricant channel positioned within the crankshaft.22. The drive ring of claim 21 , wherein the flow path comprises an annular ring-shaped groove around a portion of an inner surface for receiving the flow of the lubricant from the lubricant channel positioned within the crankshaft.23. The drive ring of claim 21 , wherein the flow path comprises an annular ring-shaped groove around a portion of an inner surface for directing the flow of the lubricant.24. The drive ring of claim 23 , wherein the annular ring-shaped groove runs in a circumferential direction around the portion of the inner surface.25. The drive ring of wherein there are three or more engagement surfaces in contact with the shaft seal.26. An open-drive compressor claim 21 , comprising:a crankshaft, having a first lubricant flow path within the crankshaft;a shaft seal cavity; anda drive ring, directly contacting the crankshaft, including a groove configured to receive a lubricant ...

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Номер записи: 61
30-05-2019 дата публикации

COMPRESSOR

Номер: US20190160915A1
Автор: AHN Hyun Seong, Jeong Soo Cheol, Lim Jae Hoon, Lim Kweon Soo, MOON Chi Myeong, Shin In Cheol
Принадлежит:

Disclosed herein is a compressor that includes a casing, a fastening part disposed at a portion corresponding to a support bracket provided in a compressor mounting part of a vehicle on the casing, and a fastener connecting the support bracket to the fastening part, wherein a compressor's center of gravity and a compressor's point of support supported by the fastener are positioned in a longitudinal direction of the fastener. The present disclosure has an effect of relieving rotational moment and fatigue stress occurring in the compressor when the compressor is mounted to the vehicle. 1. A compressor mounted to a support bracket disposed in a compressor mounting part of a vehicle , the compressor comprising:a casing;a fastening part disposed at a portion corresponding to the support bracket on the casing; anda fastener connecting the support bracket to the fastening part,wherein a compressor's center of gravity and a compressor's point of support supported by the fastener are positioned in a longitudinal direction of the fastener.2. The compressor according to claim 1 , wherein the compressor's center of gravity and the compressor's point of support are positioned in a direction perpendicular to the longitudinal direction of the fastener.3. The compressor according to claim 2 , wherein the compressor's center of gravity is positioned lower than the compressor's point of support in the longitudinal direction of the fastener.4. The compressor according to claim 1 , wherein:the support bracket consists of a plurality of support brackets arranged in the compressor mounting part, the fastening part consists of a number of fastening parts corresponding to the number of support brackets on the casing, and the fastener consists of a plurality of fasteners connecting the support brackets to the fastening parts; andthe compressor's point of support consists of a plurality of compressor's points of support by the plurality of fasteners.5. The compressor according to claim 4 , ...

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Номер записи: 62
21-05-2020 дата публикации

REFRIGERANT COMPRESSOR

Номер: US20200158100A1
Автор: Krispel Wilhelm, Schweighofer Alfred
Принадлежит:

The invention relates to a refrigerant compressor, comprising: a preferably hermetically sealable compressor housing; an electric drive unit, comprising a rotor () and a stator (); a crankshaft (), which is connected to the rotor () for conjoint rotation and which has a longitudinal axis (); a piston-cylinder unit, which can be driven by the crankshaft (); wherein the electric drive unit is designed as an external rotor motor and the rotor () has a carrier element () extending outward radially with respect to the longitudinal axis () at least in some sections and the carrier element () is connected to the crankshaft () for conjoint rotation. According to the invention, in order to enable an increased delivery rate of lubricant from a lubricant sump together with preferably low or reduced height of the compressor, a sleeve-shaped lubricant receiver () for centrifugally conveying lubricant from a lubricant sump formed in a bottom region of the compressor housing toward the piston-cylinder unit is provided on a side of the carrier element () facing away from the piston-cylinder unit (), the sleeve-shaped lubricant receiver () being joined to the carrier element () for conjoint rotation. 1. A refrigerant compressor witha, compressor housing;an electric drive unit comprising a rotor and a stator;a crankshaft having a longitudinal axis that is nonrotatably connected to the rotor;a piston-cylinder-unit that can be driven by the crankshaft;where the electric drive unit is made as an external rotor motor and the rotor has a carrier element that extends at least partially radially outward with respect to the longitudinal axis, and the carrier element is connected nonrotatably to the crankshaft,wherein a sleeve-shaped lubricant receptacle for centrifugal transport of lubricant from a lubricant sump formed in a bottom region of the compressor housing in the direction of the piston-cylinder-unit is provided on a side of the carrier element facing away from the piston-cylinder- ...

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Номер записи: 63
15-07-2021 дата публикации

METHOD AND EQUIPMENT FOR IMPROVING THE EFFICIENCY OF COMPRESSORS AND REFRIGERATORS

Номер: US20210215148A1
Автор: Mayorca Aurelio
Принадлежит:

A hermetic compressor may include a crankshaft having an input shaft rotatably supported on the cast-iron block along the crankshaft axis and connected to the electric motor rotary output, and an eccentric crankpin orbitally rotating about the axis as the crankshaft is rotated. A pair of opposed pistons may lie on the common plane. Each piston may be pivotably connected to one of the connecting rod piston ends to drive the pistons in an oscillatory manner within the cylinders as the crankshaft rotates. The piston and cylinder pairs may cause fluid to be pumped from the inlet port to the outlet port as the piston oscillates varying the volume of the enclosed space bound by the piston and the cylinder pairs. 1. A hermetic compressor comprising:a hermetic shell having a shell and a base which collectively define an enclosed cavity, with a discharge port, and suction port defining in the hermetic shell;an electric motor having a stator disposed within the enclosed cavity on the base, the motor having a rotary output; a cast-iron block and head assembly having a crankshaft axis, and a pair of directly opposed cylinders oriented perpendicular to the crankshaft axis, each having an inlet and an outlet port;', 'a crankshaft having an input shaft rotatably supported on the cast-iron block along the crankshaft axis and connected to an electric motor rotary output, and an eccentric crankpin orbitally rotating about the axis as the crankshaft is rotated;', 'a pair of connecting rods each having a crankshaft end with a bearing opening surrounding the eccentric crankpin, a spaced apart piston end and a rod portion there between, wherein the connecting rods generally lie in a common plane perpendicular to an input shaft axis with each of the crankshaft ends axially offset from one another in a dogleg manner lying on opposite side of the common plane to surround the crankpin;', 'a friction reduction element disposed between the connecting rod crankshaft ends; and', 'a pair of ...

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Номер записи: 64
15-07-2021 дата публикации

Heat exchanger array system and method for an air thermal conditioner

Номер: US20210215445A1
Автор: Brent Ridley, James Mcbride, Keith PASKO, Peter Lynn, Sam Sarcia, Saul Griffith, Shara MAIKRANZ, Vincent Domenic ROMANIN
Принадлежит: OTHER LAB LLC

An air thermal conditioning system, for at least one of heating air and cooling air, which includes a cross-flow heat exchanger array. The cross-flow heat exchanger array includes a plurality of planar membrane heat exchangers disposed in parallel with a space separating adjacent planar membrane heat exchangers. Each of the planar membrane heat exchangers include a first sheet; a second sheet coupled to the first sheet; and at least one fluid chamber defined by the first and second sheets, with the at least one fluid chamber extending between first and second ends of the planar membrane heat exchangers and opening to a first and second port at the first and second ends respectively.

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Номер записи: 65
22-07-2021 дата публикации

VEHICLE-MOUNTED ELECTRIC OIL-FREE AIR COMPRESSOR

Номер: US20210222684A1
Автор: Li Chuanwu, ZHONG Zhoule, ZHOU Shengbo, ZHU Bin
Принадлежит:

A vehicle-mounted electric oil-free air compressor, including a motor, a box body, a piston, and a flywheel shaft. The motor is fixed on the box body, a cylinder cover is at the top of the box body, a main shaft of the motor includes a coupling driving end, the flywheel shaft is driven by an elastic body to rotate. The piston includes a primary intake valve piece and a primary exhaust valve piece, the box body is provided with a secondary cavity, a secondary exhaust valve piece is provided at a vent hole on one side of the cavity, and the primary exhaust valve piece is also a secondary intake valve piece of the compressor, increasing the exhaust pressure. When the piston reciprocates, the stress is balanced and the vibration is small, and with the assistance of a high-efficiency flywheel, the operation of the air compressor is stable. 1. A vehicle-mounted electric oil-free air compressor , comprising a motor , a box body , a piston , and a flywheel shaft , wherein the motor is fixed on the box body , a cylinder cover is provided at the top of the box body , a main shaft of the motor is provided with a coupling driving end , the flywheel shaft is driven by an elastic body to rotate , wherein the piston is provided with a primary intake valve piece and a primary exhaust valve piece , the box body is provided with a secondary cavity , and a secondary exhaust valve piece is provided at a vent hole on one side of the cavity.2. The vehicle-mounted electric oil-free air compressor according to claim 1 , wherein the primary exhaust valve piece is also a secondary intake valve piece of the compressor.3. The vehicle-mounted electric oil-free air compressor according to claim 1 , wherein a lower side of the primary exhaust valve piece is an elastic washer claim 1 , which is fixed on the piston through a ventilation bolt.4. The vehicle-mounted electric oil-free air compressor according to claim 3 , wherein the elastic washer is selected from a wave washer claim 3 , a butterfly ...

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Номер записи: 66
14-07-2016 дата публикации

PRESSURIZING BOOSTER COMPRESSOR

Номер: US20160201666A1
Автор: Inoue Hiroshi, Ogawa Yosuke
Принадлежит:

A method for preventing a pressure in a crank chamber from excessively increasing without leading to an increase in weight or cost or causing damage to a pressurizing booster compressor. A compression chamber is formed by a cylinder, a cylinder head, and a piston reciprocal inside the cylinder. Rotation of an output shaft of an electric motor causes the piston to reciprocate via a crank shaft. A sealed crank chamber is defined inside a crank case. A pressurized gas supply tube supplies pressurized gas to be compressed into each of the compression chamber and the crank chamber. The crank case is formed from a hollow cylindrical body and an end plate facing the outside. A low-strength wall (a partition wall having a lower strength than another partition wall), which is configure to be broken under an allowable maximum pressure of the crank chamber, is formed on the end plate. 16-. (canceled)7. A pressurizing booster compressor comprising:a cylinder;a cylinder head provided on the cylinder;a piston reciprocatable inside the cylinder, the piston defining a compression chamber together with the cylinder head and the cylinder;a crank shaft coupled with the piston;a driving shaft configured to rotationally drive the crank shaft;a crank case containing the crank shaft and defining a crank chamber isolated from an outside; anda pressurized gas supply tube configured to supply pressurized gas to be compressed to each of the compression chamber and the crank chamber,wherein the crank case includes a partition wall, and the partition wall includes a low-strength wall at a part thereof facing the outside, the low strength wall being configured to be broken under an allowable maximum pressure of the crank chamber.8. The pressurizing booster compressor according to claim 7 , wherein the partition wall of the crank case comprisesa hollow cylindrical body including an outer peripheral wall and an end wall forming one end surface with an opposite end surface open to the outside, ...

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Номер записи: 67
02-10-2014 дата публикации

Refrigerant Compressor

Номер: US20140294643A1
Автор: Masaki Koyama, Yuichi Yanagase
Принадлежит: HITACHI LTD

A refrigerant compressor includes a compressor mechanism part 2 , and a motor and a crank shaft 101 for driving the compressor mechanism part, in a sealed case 100 , and includes sliding bearings 103, 104 , and 105 at least either in an engagement part between the compressor mechanism part and the crank shaft or in a rotation support part of the crank shaft. Further, an unleaded resin impregnation material is used for at least one of the sliding bearings, the crank shaft is made of a ferrous material, and a hard carbon film including hydrogen is formed on a part of the crank shaft sliding with the sliding bearing using the unleaded resin impregnation material.

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Номер записи: 68
26-07-2018 дата публикации

Reciprocating Compressor with Vented Discharge Valve

Номер: US20180209407A1
Автор: Flanigan Paul J.
Принадлежит: CARRIER CORPORATION

A compressor () comprises: a case (); and at least one piston () mounted for reciprocating movement, each in a respective cylinder () of the case. The at least one piston has a peripheral surface () and an upper surface (). At least one discharge valve comprises: a valve element () shiftable between a closed condition and an open condition; a valve guide (); one or more springs () held at least partially the valve guide biasing the valve element from the open condition toward the closed condition; and one or more vents () in the valve guide providing a flow path from a region above the valve element upward through the valve guide. 120. A compressor () comprising:{'b': '22', 'a case (); and'}{'b': 40', '42', '50', '52, 'at least one piston () mounted for reciprocating movement, each in a respective cylinder () of the case, the at least one piston having a peripheral surface () and an upper surface (); and'} [{'b': '150', 'an annular valve element () shiftable between a closed condition and an open condition;'}, {'b': '170', 'a valve guide ();'}, {'b': '180', 'one or more springs () held at least partially the valve guide biasing the valve element from the open condition toward the closed condition; and'}, {'b': '300', 'one or more vents () in the valve guide providing a flow path from a region above the valve element upward through the valve guide.'}], 'at least one discharge valve comprising2. The compressor of wherein:the one or more springs are a plurality of coil springs.3. The compressor of wherein:the one or more springs are eight to sixteen springs per cylinder.4. The compressor of wherein:{'b': '182', 'the one or more springs are partially accommodated in one or more pockets (); and'}the one or more vents extend to the one or more spring pockets.5. The compressor of wherein:the each of the one or more vents is coaxial with a respective associated one of the one or more pockets.6. (canceled)7. The compressor of wherein:{'b': 320', '76, 'one or more peripheral ...

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Номер записи: 69
04-08-2016 дата публикации

RECIPROCATING COMPRESSOR

Номер: US20160222954A1
Автор: KIM TaeMin
Принадлежит:

A reciprocating compressor is provided that may include a shell, a suction pipe coupled to the shell, a driver provided inside of the shell that generates a rotational force, a compression device including a connecting rod that converts the rotational force into a linear driving force, a piston coupled to the connecting rod, and a cylinder into which the piston is movably inserted, a suction muffler provided inside of the shell that reduces a pressure pulsation of a refrigerant suctioned through the suction pipe, and a suction guide that extends from the shell to the suction muffler and includes at least one protrusion that contacts an inner surface of the shell. 1. A reciprocating compressor , comprising:a shell;a suction pipe coupled to the shell;a driver provided inside of the shell that generates a rotational force; a connecting rod that converts the rotational force into a linear driving force;', 'a piston coupled to the connecting rod; and', 'a cylinder into which the piston is movably inserted;, 'a compression device includinga suction muffler provided inside of the shell that reduces a pressure pulsation of a refrigerant suctioned through the suction pipe; anda suction guide that extends from the shell to the suction muffler and includes at least one protrusion that contacts an inner surface of the shell.2. The reciprocating compressor according to claim 1 , wherein the suction guide further includes:a guide body having a front surface that faces an inner surface of the shell; anda muffler insertion portion that extends towards an inside of the suction muffler.3. The reciprocating compressor according to claim 2 , wherein the at least one protrusion is provided at the front surface of the guide body.4. The reciprocating compressor according to claim 3 , wherein the at least one protrusion is provided at a boundary of the front surface.5. The reciprocating compressor according to claim 2 , wherein a plurality of protrusions is spaced apart from each other at ...

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Номер записи: 70
16-10-2014 дата публикации

SEALED COMPRESSOR AND REFRIGERATOR INCLUDING SEALED COMPRESSOR

Номер: US20140308141A1
Автор: Haraki Yu, Ide Terumasa, INAGAKI Ko, Watanabe Kiwamu
Принадлежит: Panasonic Corporation

A sealed compressor () of the present invention comprises an electric component (), a compression component (), and a sealed container (), the compression component includes a shaft (), a cylinder block (), a piston (), and a crank weight (), a rotor () of the electric component has a cylindrical shape, contains a cylindrical space therein, and includes an upper section () in which a lower portion of a bearing () of a cylinder block is fitted into the cylindrical space, a lower section () to which a lower portion of the main shaft inserted into the through-hole of the bearing and inserted into the cylindrical space is fixedly fitted, and a balance weight () placed on an opposite side of the crank weight with respect to the piston. 1. A sealed compressor comprising:an electric component including a stator and a rotor which is rotatable with respect to the stator;a compression component activated by the electric component placed below the compression component; anda sealed container accommodating the electric component and the compression component;wherein the compression component includes:a shaft including a main shaft, and an eccentric shaft which is eccentric with respect to the main shaft;a cylinder block including a bearing having inside thereof a through-hole extending vertically and supporting the main shaft inserted into the through-hole such that the main shaft is rotatable, and a cylinder having a compression chamber inside thereof;a piston which is coupled to the eccentric shaft and is reciprocatable within the compression chamber; anda crank weight mounted to an upper portion of the eccentric shaft;wherein the rotor has a cylindrical shape and contains a cylindrical space therein; andwherein the rotor includes:an upper section in which a lower portion of the bearing is fitted into the cylindrical space;a lower section which is smaller in inner diameter than the upper section, a lower portion of the main shaft inserted into the through-hole of the bearing ...

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Номер записи: 71
03-08-2017 дата публикации

PLUNGER CLAMP FOR FLUID END

Номер: US20170218932A1
Автор: CHUNN Austin, FREED Wesley, TIPTON Chase
Принадлежит:

A plunger clamp is disclosed that includes a body comprising a first end and a second end, wherein the body comprises a threaded portion that facilitates coupling and decoupling of the first and second ends, and wherein the first end or the second end includes a plurality of blind holes formed on a perimeter thereof that extend in a direction orthogonal to a longitudinal axis of the body. 1. A plunger clamp , comprising:a body comprising a first end, a second end, and a clamp connector and a center retainer disposed between the first and second ends, wherein the clamp connector comprises a threaded portion that interfaces with the first end facilitating relative rotation with, and separation from, the first end, and wherein the center retainer comprises a threaded portion that interfaces with the second end facilitating relative rotation with, and separation from, the second end.2. The plunger clamp of claim 1 , wherein the first and second ends include recessed portions corresponding to positions of fastener holes formed therethrough.3. The plunger clamp of claim 1 , wherein the second end includes a central through hole.4. The plunger clamp of claim 3 , wherein the central through hole is threaded.5. The plunger clamp of claim 3 , wherein the center retainer includes a retainer plate having a central opening formed therein.6. The plunger clamp of claim 1 , wherein the threaded portion of the clamp connector comprises female threads.7. The plunger clamp of claim 1 , wherein the threaded portion of the center retainer comprises a fastener.8. The plunger clamp of claim 1 , wherein both of the first end and the clamp connector includes a plurality of blind holes formed on the respective perimeter.9. A plunger clamp claim 1 , comprising:a body comprising a first end and a second end, wherein the body comprises a threaded portion that facilitates coupling and decoupling of the first and second ends, and wherein at least one of the first end and the second end includes a ...

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Номер записи: 72
03-08-2017 дата публикации

RECIPROCATING COMPRESSOR

Номер: US20170218933A1
Автор: FUKUDOME Hiroshi, HARADA Naofumi, ITO Tsutomu
Принадлежит: Hitachi Automotive Systems, Ltd.

A balance weight includes a main weight portion extending over a range defined by a circular-arc circumferential edge centered at a rotational shaft hole side and a pair of virtual end surfaces located on the circular-arc circumferential edge on both sides of the rotational shaft hole, a pair of extension weight portions extending from the pair of virtual end surfaces to an opposite circular-arc side of the rotational shaft hole from the circular-arc circumferential edge, the rotational shaft hole provided at the main weight portion so as to be located on a central side of the circular-arc circumferential edge, a crank shaft attachment protrusion, a crank shaft hole provided at the crank shaft attachment protrusion radially eccentrically with respect to the rotational shaft hole, and a pair of spaces formed between positions on both sides of the crank shaft attachment protrusion and the pair of extension weight portions, respectively. 1. A reciprocating compressor comprising:a crank case;a cylinder attached to this crank case;a piston reciprocatably fittedly inserted in this cylinder;a connection rod extending from this piston;a crank shaft inserted through one side of this connection rod via a hearing;a rotational shaft configured to be rotationally driven by a motor; anda balance weight attached to this rotational shaft with the crank shaft also attached thereto, the balance weight being configured to be usable to balance a moment generated when this rotational shaft rotates,the balance weight includinga main weight portion extending over a range defined by a circular-arc circumferential edge shaped like a circular arc centered, at one side where the rotational shaft is located, and a pair of virtual end surfaces located on this circular-arc circumferential edge on both sides of the rotational shaft,a pair of extension weight portions extending from the pair of virtual end surfaces of this main weight portion to an opposite circular-arc side from the circular-arc ...

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Номер записи: 73
03-08-2017 дата публикации

Crankcase Assembly for a Reciprocating Machine

Номер: US20170218934A1
Автор: FRANZ THOMAS, GEITHER Jeffrey, HEBRARD Gilles, HOBAN Edward, Huffman Justin, MARESCOT Jean-Baptiste, MELLAR Joerg, PETEK Nicholas, WEINHOLD Thomas
Принадлежит:

A crankcase assembly for a reciprocating machine is provided in which a crankcase having at least one cylinder with a wet cylinder liner arranged therein. A cylinder head for charging and discharging pressurized gas is mounted on the crankcase and a cylinder head gasket for preventing leakage of pressurized gas out of the cylinder is arranged between the crankcase and the cylinder head and is running circumferentially spaced from the inner wall of the cylinder liner. A circumferential coolant channel is formed between the inner crankcase wall and an outer wall of the cylinder liner, wherein a lower sealing means is arranged between the inner crankcase wall and the cylinder liner on the crankshaft side of the coolant channel for preventing leakage of coolant fluid. An upper sealing means is arranged between the inner crankcase wall and the cylinder liner on the cylinder head side of the coolant channel for preventing leakage of coolant fluid. 1. A crankcase assembly for a reciprocating machine , comprising:a crankcase configured to receive a crankshaft therein;a wet cylinder liner, the wet cylinder liner being located in the crankcase;a cylinder head configured to charge gas into the wet cylinder liner and discharge pressurized gas from the wet cylinder liner, the cylinder head being mounted on the crankcase at a cylinder head side of the wet cylinder liner opposite a crankshaft side the wet cylinder liner;a cylinder head gasket between the cylinder head and the crankcase configured to prevent leakage of pressurized gas from the wet cylinder liner, the cylinder head gasket being disposed circumferentially spaced from an inner wall of the wet cylinder liner,a circumferential coolant channel formed between the inner crankcase wall and an outer wall of the wet cylinder liner;a lower sealing arrangement located between the inner crankcase wall and the wet cylinder liner on a crankshaft side of the circumferential coolant channel, the lower sealing arrangement being ...

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Номер записи: 74
10-08-2017 дата публикации

BEARING ARRANGEMENT FOR A RECIPROCATING COMPRESSOR

Номер: US20170227046A1
Автор: Manke Adilson Luiz
Принадлежит:

The arrangement of the present invention is applied to a compressor which comprises a bearing hub housing a crankshaft and presenting at least a first and a second bearing portion, spaced apart by a circumferential recess. The crankshaft presents at least a first and a second support portion, spaced apart by a circumferential recess, which is offset from the circumferential recess of the bearing hub. At least one of the bearing portions and support portions has an axial extension superior to that required for radially bearing the crankshaft, the first and second bearing portions defining, with the first and second support portions, respectively, a first and a second radial bearing regions having the axial extensions required for a radial bearing for the crankshaft, presenting lower loss by viscous friction. 1. A bearing arrangement for a reciprocating refrigeration compressor of the type which includes a crankcase defining a bearing hub , in which is housed a crankshaft , the crankshaft having an axial length extending along a length of the bearing hub , the crankshaft incorporating an eccentric end portion , projecting outwardly from a first end of the bearing hub , and a free end portion , projecting outwardly from a second end of the bearing hub , said arrangement being characterized in that the bearing hub comprises a first and a second bearing portion , spaced apart by a first circumferential recess having a first length defined by the axial length of the crankshaft , the first bearing portion is provided with at least one relief circumferential recess , which is at least partially confronting with a respective axial extension of the first bearing portion , defining a second axial extension , the crankshaft comprising a first and a second support portion , spaced apart by a second circumferential recess having a second length defined by the axial length of the crankshaft axially offset in relation to the first circumferential recess of the bearing hub , wherein ...

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Номер записи: 75
27-08-2015 дата публикации

Reciprocating compressor

Номер: US20150240798A1
Автор: Hideaki Sato, Toru Takenouti, Yasuyuki Ikeda
Принадлежит: Mayekawa Manufacturing Co

A reciprocating compressor is disclosed which includes a housing which includes an intake chamber, a discharge chamber, a cylinder, and a crank chamber, the crank chamber having a lower portion formed as an oil storage chamber configured to store lubricant; a piston which is reciprocatively located in the cylinder; a crank shaft which is rotatably arranged in the crank chamber and is coupled to the piston via a connecting rod; a pressure equalization path through which the intake chamber and the crank chamber communicates, the pressure equalization path having an opening end open to the crank chamber; and a partition member which is located between the crank shaft and the opening end of the pressure equalization path. The partition member extends below the crank shaft from one side to the other side of the crank shaft so as to cover at least the lower side of the crank shaft.

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Номер записи: 76
18-08-2016 дата публикации

Air inlet control for air compressor

Номер: US20160238000A1
Автор: Joseph Suarez
Принадлежит: AC Macao Commercial Offshore Ltd

An air compressor system operably coupled to a power supply including an air storage tank and an air pump including an air manifold having an inlet configured to receive ambient air. The air pump is fluidly coupled to the air storage tank. The air compressor system also includes a motor having a first current level provided by the power supply to operate the air pump, a valve member in fluid communication with the inlet of the air manifold, and a controller operable to move the valve member to either increase or decrease a rate of ambient air traveling into the manifold. The controller monitors the first current level of the motor to change the rate of ambient air traveling into the manifold.

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Номер записи: 77
03-09-2015 дата публикации

Compressor system, and puncture repair kit using same

Номер: US20150246490A1
Автор: Tsutomu Kono, Vincent Chou, Yoshihide Kojima
Принадлежит: Sumitomo Rubber Industries Ltd, Unik World Industrial Co Ltd

The pressure of compressed air supplied to an object to be filled with air is controlled at a specified pressure or less without using a relief valve. Given that a cylinder volume (stroke volume) during a piston moves from the lower dead point to the top dead point is V 1 , a cylinder volume (compression volume) when the piston reaches the top dead point is V 2 , the atmospheric pressure is P 0 , and the specified pressure is P P , the compression volume V 2 in the compressor system satisfies the following expression (1). The diameter D of the air intake hole of an air intake valve provided on the piston is 3 to 15 mm. 0.8×{ V 1× P 0 /( P P −P 0 )}=< V 2<1.0×{ V 1× P 0 /( P P −P 0 )}  (1)

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Номер записи: 78
26-08-2021 дата публикации

METHOD OF MOUNTING A BEARING TO AN AIR COMPRESSOR, AND AIR COMPRESSOR HAVING A BEARING MOUNTED BY THE METHOD

Номер: US20210262524A1
Автор: CHOU Wen-San
Принадлежит:

A method of mounting a bearing to an air compressor including a shaft element having a first end defining a central cylindrical recess and a second is disclosed, which includes the steps of: fixing the second end of the shaft element to a center of a gear; inserting the first end of the shaft element through a central hole of a bearing to have an annular step of the shaft element abutted an inner ring of the bearing; and hitting the first end of the shaft element by a striking tool with a central pin to form an outwardly extending rim on the first end of the shaft element. With the method, the bearing can be firmly fixed between the outwardly extending rim and the annular step of the shaft element. 1. An air compressor , comprising:a base frame defining a first mounting hole, which allows a pinion driven by a motor to pass, and a second mounting hole for receiving therein a bearing which includes an outer ring, an inner ring defining a central hole, and a plurality of rolling balls disposed therebetween;a cylinder fixed to or formed integrally with the base frame;an air storage container provided with one or more outlet tubes, and connected and communicated with the cylinder;a gear in mesh with the pinion; anda crank mechanism including a counterweight provided on the gear, a crankpin connected with a piston, and a shaft element having a first end, which defines a central cylindrical recess, and a second end, wherein the second end has a diameter greater than the first end, thus forming an annular step therebetween, the second end of the shaft element being fixed to a center of the gear, the first end of the shaft element being inserted through the central hole of the inner ring of the bearing and being hitted by a striking tool to form an outwardly extending rim on the first end of the shaft element, so that the bearing is firmly fixed between the outwardly extending rim and the annular step of the shaft element.2. The air compressor of claim 1 , wherein a cutout ...

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Номер записи: 79
25-08-2016 дата публикации

RECIPROCATING COMPRESSOR, COMPRESSION SECTION UNIT, AND MAINTENANCE METHOD OF RECIPROCATING COMPRESSOR

Номер: US20160245274A1
Автор: NAGURA Kenji, SEYAMA Katsuhiro, TEZUKA Satoshi
Принадлежит: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)

A reciprocating compressor is provided with a compression section which compresses gas, and a crank section which has a crankshaft and drives the compression section. The compression section is provided with a wall body portion which includes a cylinder and constitutes a wall body of the compression section, a cylinder head attached to the cylinder, a piston which reciprocates within the cylinder, a piston rod which couples the crankshaft and the piston, and at least one sealing member fixed to the wall body portion and disposed in the circumference of the piston rod. The wall body portion has a first boundary wall which forms the boundary with the crank section in the crank section side with respect to the at least one sealing member and acts as a division surface when the crank section and the compression section are separated. 1: A reciprocating compressor comprising:a compression section which compresses gas; anda crank section which has a crankshaft and drives the compression section, a wall body portion which includes a cylinder and constitutes a wall body of the compression section;', 'a cylinder head attached to the cylinder;', 'a piston which reciprocates within the cylinder;', 'a piston rod which couples the crankshaft and the piston; and', 'at least one sealing member fixed to the wall body portion and disposed in the circumference of the piston rod, and, 'wherein the compression section comprisingwherein the wall body portion has a boundary portion which forms the boundary with the crank section in the crank section side with respect to the at least one sealing member and acts as a division surface when the crank section and the compression section are separated.2: The reciprocating compressor according to claim 1 ,wherein the compression section comprises an attachment portion for mounting a stopper member which restricts the movement in the reciprocating direction of the piston within the cylinder so that the piston does not come in contact with the ...

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Номер записи: 80
25-08-2016 дата публикации

Reciprocating Compressor With Vapor Injection System

Номер: US20160245278A1
Автор: BERGMAN Ernest R., ELSON John P., ERB Anthony L., GIRVIN, II Thomas L., PATRIZIO Diane Belinda, WALLIS FRANK S.
Принадлежит: EMERSON CLIMATE TECHNOLOGIES, INC.

A compressor may include a compression cylinder, a compression piston, a crankshaft, an injection bore, a position sensor, and a valve assembly. The compression piston is disposed within the compression cylinder and is operable to compress a vapor disposed within the compression cylinder from a suction pressure to a discharge pressure. The crankshaft is operable to cycle the compression piston within the compression cylinder. The injection bore may be in fluid communication with the compression cylinder and may be operable to selectively communicate intermediate-pressure vapor at a pressure between the suction pressure and said discharge pressure to the compression cylinder. The position sensor may measure a rotational position of the crankshaft. The valve assembly may be associated with the injection bore. The valve assembly may be operable to control passage of fluid from the injection bore into the compression cylinder in response to data provided by the position sensor. 1. A compressor comprising:a compression cylinder;a compression piston disposed within said compression cylinder and operable to compress a vapor disposed within said compression cylinder from a suction pressure to a discharge pressure;a crankshaft operable to cycle said compression piston within said compression cylinder;an injection bore in fluid communication with said compression cylinder and operable to selectively communicate intermediate-pressure vapor at a pressure between said suction pressure and said discharge pressure to said compression cylinder;a position sensor measuring a rotational position of said crankshaft; anda valve assembly associated with said injection bore, said valve assembly operable to control passage of fluid from said injection bore into said compression cylinder in response to data provided by said position sensor.2. The compressor of claim 1 , wherein said compression piston is movable within said compression cylinder between a top dead center (TDC) position and a ...

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Номер записи: 81
24-08-2017 дата публикации

PISTON COMPRESSOR AND REFRIGERATION SYSTEM HAVING THE SAME

Номер: US20170241412A1
Автор: Huang Gang, YAN Zhiqi
Принадлежит:

A compressor and a refrigeration system having the same are provided. The compressor includes a crankcase, a thrust bearing and a crankshaft. The crankcase is formed with a crankshaft hole therein and provided with a mounting protrusion at an upper end thereof. The crankshaft hole runs upward through the mounting protrusion. The thrust bearing is fitted over the mounting protrusion. The crankshaft is rotatably disposed within the crankshaft hole, has a thrust part, and is formed with an oil supply passage therein. A lower end face of the thrust part is abutted against an upper end face of the thrust bearing. A cavity is defined by the mounting protrusion, the thrust bearing and the thrust part. A through hole is formed in a peripheral wall of the crankshaft for communicating the oil supply passage with the cavity. 1. A piston compressor , comprising:a crankcase formed with a crankshaft hole therein and provided with a mounting protrusion at an upper end thereof, wherein the crankshaft hole runs upward through the mounting protrusion;a thrust bearing fitted over the mounting protrusion;a crankshaft rotatably disposed within the crankshaft hole, having a thrust part, and formed with an oil supply passage therein, wherein a lower end face of the thrust part is abutted against an upper end face of the thrust bearing,wherein a cavity is defined by the mounting protrusion, the thrust bearing, and the thrust part, and a through hole is formed in a peripheral wall of the crankshaft for communicating the oil supply passage with the cavity.2. The piston compressor according to claim 1 , wherein an upper end face of the mounting protrusion is higher than the upper end face of the thrust bearing in an axial direction of the crankshaft.3. The piston compressor according to claim 2 , wherein the thrust part is formed with a groove in a lower surface thereof claim 2 , and the groove is concaved upward and configured to overlie the mounting protrusion to form at least a part of the ...

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Номер записи: 82
31-08-2017 дата публикации

DUAL SERVICE COMPRESSOR SYSTEM FOR CONDITIONING HYDROCARBON GAS

Номер: US20170248130A1
Автор: ATHIRATHNAM Rajesh, Kapoor Manik, Khan Mohsin
Принадлежит: GE Oil & Gas, Inc.

A system for compressing gas from a wellbore that uses a single reciprocating compressor unit to boost pressure of the gas to an intermediate stage, and from the intermediate stage to a final stage. The final stage is at a destination pressure for distribution. Between the intermediate and final stages the gas is treated to remove water and higher molecular weight hydrocarbons so that the gas pressurized to the final stage is compressed natural gas. The reciprocating compressor is made up of a series of throw assemblies that are all driven by a single shaft. Each throw assembly includes a cylinder with a piston that reciprocates within the cylinder to compress and pressurize the fluid therein. The reciprocating compressor can be a non-lube design thereby eliminating lube oil contamination of downstream compressed natural gas or higher molecular weight hydrocarbons. 1. A method of producing compressed natural gas , the method comprising:providing a reciprocating compressor having a booster cylinder and a compressed natural gas (CNG) cylinder;directing an amount of gas from a wellbore to the compressor;compressing the amount of gas in the booster cylinder to an intermediate stage pressure to define an amount of intermediate stage gas;directing the intermediate stage gas to the CNG cylinder; andcompressing the intermediate stage gas in the CNG cylinder to a destination pressure to form compressed natural gas.2. The method of claim 1 , further comprising treating the intermediate stage gas prior to directing the intermediate stage gas to the second one of the cylinders.3. The method of claim 2 , wherein treating the intermediate stage gas comprises separating higher molecular weight hydrocarbons from the intermediate stage gas.4. The method of claim 2 , wherein treating the intermediate stage gas comprises removing moisture from the intermediate stage gas.5. The method of claim 4 , wherein removing moisture from the intermediate stage gas comprises adding a hygroscopic ...

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Номер записи: 83
20-11-2014 дата публикации

Sealed compressor and refrigerator including sealed compressor

Номер: US20140341763A1
Автор: Ko Inagaki, Masanori Kobayashi, Terumasa Ide
Принадлежит: Panasonic Intellectual Property Management Co Ltd

A sealed compressor ( 100 ) comprises an electric component ( 110 ), a compression component ( 112 ), and a sealed container ( 102 ), the compression component includes a shaft ( 118 ), a cylinder block ( 124 ), a piston ( 130 ), and a ball bearing ( 176 ), the ball bearing includes a cage ( 168 ), a plurality of rolling elements ( 166 ); a first race ( 164 ), a second race ( 170 ), and a support member ( 172 ), and when a mass of a shaft assembly ( 118 a ) including the rotor ( 116 ) and the shaft is M, a spring constant of the support member is K, and a maximum rotational frequency of the shaft assembly is F, a relationship of F<1/4π)*(K/M) − 0.5 is satisfied.

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Номер записи: 84
07-09-2017 дата публикации

AIR COMPRESSOR MADE OF A LIGHT METAL

Номер: US20170254322A1
Автор: OPPERMANN Uwe
Принадлежит:

Disclosed is an air compressor () for supplying compressed air to a pneumatic system in a motor vehicle. The air compressor () comprises a crankcase (), a cylinder housing () connected to the crankcase, a cylinder head (), a crankshaft () rotatably mounted in the crankcase, a cylindrical piston () that is connected to the crankshaft () by a connecting rod (). In order to load the compressed air with as little heat as possible, the crankcase (), the cylinder housing (), the cylinder head (), and the piston () are made of aluminum or an aluminum alloy, and the at least one piston ring () or the at least one oil ring is made of gray cast iron or polytetrafluoroethylene (PTFE). 1. An air compressor to supply a compressed air system of a motor vehicle with compressed air , said air compressor having a crankcase , a cylinder housing connected to the crankcase a cylinder head , a crankshaft arranged in a rotatably mounted manner in the crankcase , a cylindrical piston connected via a connecting rod to the crankshaft , which piston is arranged axially movably along a cylindrical running surface of the cylinder housing , at least one piston ring or oil scraper ring which is arranged in an annular groove on outer lateral surface of the piston , a compression chamber which is formed above the piston and is closed off by the cylinder head , further having an intake duct and an outlet duct which are formed in a cylinder head upper part of the cylinder head , wherein the intake duct is assigned at least one suction valve and the outlet duct is assigned at least one pressure valve , wherein the crankcase , the cylinder housing , the cylinder head and the piston are produced from aluminum or an aluminum alloy , and that the at least one piston ring or the at least one oil scraper ring is produced from grey cast iron or from polytetrafluoroethylene (PTFE).2. The air compressor as claimed in claim 1 , wherein the crankcase claim 1 , the piston and the cylinder housing are produced ...

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Номер записи: 85
22-09-2016 дата публикации

SEALED COMPRESSOR AND REFRIGERATION UNIT INCLUDING SEALED COMPRESSOR

Номер: US20160273579A1
Автор: Akashi Hironari, Hayashi Yasushi, Ide Terumasa, Katayama Makoto, KOBAYASHI Hidenori, Tsuboi Kousuke, Watanabe Kiwamu
Принадлежит:

A sealed compressor of the present invention comprises a sealed container () accommodating an electric component () and a compression component () and storing lubricating oil (); wherein the compression component () includes a shaft () including a main shaft section (), a main bearing unit (), and a thrust ball bearing (); wherein the main shaft section () is provided with a first oil feeding passage () to transport the lubricating oil (); the thrust ball bearing () includes a cage (), balls (), an upper race () and a lower race (), and the thrust ball bearing () is provided with a second oil feeding passage () communicated with the first oil feeding passage () and configured to feed the lubricating oil () to the raceway groove provided in at least one of the upper race () and the lower race (), and a discharge passage () through which the lubricating oil () is discharged. 1. A sealed compressor comprising:an electric component including a stator and a rotor;a compression component actuated by the electric component; anda sealed container accommodating the electric component and the compression component and storing lubricating oil for lubricating the compression component;wherein the compression component includes a shaft including a main shaft section to which the rotor is fastened and an eccentric shaft section, a cylinder block accommodating a piston reciprocatable according to rotation of the shaft, a main bearing unit mounted on the cylinder block to support the main shaft section, and a thrust ball bearing disposed between a flange surface formed in the shaft and a thrust surface formed in the main bearing unit;the main shaft section is provided with a first oil feeding passage to transport the lubricating oil from a lower portion of the main shaft section to an upper portion of the main shaft section;the thrust ball bearing includes a plurality of balls held in a cage, an upper race disposed such that one of its main surfaces is in contact with upper ...

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Номер записи: 86
21-09-2017 дата публикации

CLOSED COMPRESSOR AND REFRIGERATION DEVICE

Номер: US20170268492A1
Автор: BONKOBARA Yasuhiro, INAGAKI Ko, KONDOU Takahiro
Принадлежит:

A closed compressor includes: a compressor body; and a closed vessel in which the compressor body is accommodated and oil is stored. The compressor body has an electric element and a compression element that is driven by the electric element. The compression element has a cylinder block that forms a cylinder, a piston that performs a reciprocating motion in the cylinder, and a crankshaft that actuates the piston. The cylinder block configures a bearing that pivotally supports the crankshaft. The cylinder forms a compression chamber. The compressor body has a support that forms a curved surface. A contact portion, at which the curved surface comes into contact with a receiving surface in the closed vessel, is formed.

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Номер записи: 87
20-09-2018 дата публикации

DOUBLE-PISTON COMPRESSOR OF A COMPRESSED-AIR SUPPLY DEVICE

Номер: US20180266406A1
Автор: Bredbeck Klaus, Frank Dieter, Weber Thorsten
Принадлежит:

A double-piston compressor of a compressed air supply device includes a first pressure stage and a second pressure stage, each having a cylinder with a piston guided therein in an axially movable manner. The piston of the cylinder of the first pressure stage and the cylinder of the second pressure stage are rigidly connected to one another via a piston rod and are in driving connection with the drive shaft via a slotted guide. The slotted guide comprises a recess which is formed in the piston rod, provided with a slotted guide track and oriented perpendicularly to an axis of rotation of the drive shaft with its cross-sectional plane. The slotted guide comprises a drive roller which is engaged with the recess and fastened to the drive shaft in an axially parallel, eccentric, and also rotatable manner with respect to the axis of rotation of the drive shaft. 1. A double-piston compressor of a compressed air supply device , comprising:a first pressure stage and a second pressure stage, each having a cylinder with a piston guided therein in an axially movable manner,wherein the cylinder of the first pressure stage and the cylinder of the second pressure stage are arranged radially opposite one another with respect to an axis of rotation of a drive shaft, wherein the piston of the cylinder of the first pressure stage and the cylinder of the second pressure stage are rigidly connected to one another via a piston rod and are in driving connection with the drive shaft via a slotted guide;wherein the slotted guide comprises a recess which is formed in the piston rod, provided with a slotted guide track and oriented perpendicularly to an axis of rotation of the drive shaft with its cross-sectional plane,wherein the slotted guide comprises a drive roller which is engaged with the recess and fastened to the drive shaft in an axially parallel, eccentric, and also rotatable manner with respect to the axis of rotation of the drive shaft,wherein the recess in the slotted guide is ...

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Номер записи: 88
29-09-2016 дата публикации

METHOD AND EQUIPMENT FOR IMPROVING THE EFFICIENCY OF COMPRESSORS AND REFRIGERATORS

Номер: US20160281701A1
Автор: Mayorca Aurelio
Принадлежит:

A hermetic compressor may include a crankshaft having an input shaft rotatably supported on the cast-iron block along the crankshaft axis and connected to the electric motor rotary output, and an eccentric crankpin orbitally rotating about the axis as the crankshaft is rotated. A pair of opposed pistons may lie on the common plane. Each piston may be pivotably connected to one of the connecting rod piston ends to drive the pistons in an oscillatory manner within the cylinders as the crankshaft rotates. The piston and cylinder pairs may cause fluid to be pumped from the inlet port to the outlet port as the piston oscillates varying the volume of the enclosed space bound by the piston and the cylinder pairs. 1. A hermetic compressor comprising:a hermetic shell having a shell and a base which collectively define an enclosed cavity, with a discharge port, and suction port defining in the hermetic shell;an electric motor having a stator disposed within the enclosed cavity on the base, the motor having a rotary output; a cast-iron block and head assembly having a crankshaft axis, and a pair of directly opposed cylinders oriented perpendicular to the crankshaft axis, each having an inlet and an outlet port;', 'a crankshaft having an input shaft rotatably supported on the cast-iron block along the crankshaft axis and connected to an electric motor rotary output, and an eccentric crankpin orbitally rotating about the axis as the crankshaft is rotated;', 'a pair of connecting rods each having a crankshaft end with a bearing opening surrounding the eccentric crankpin, a spaced apart piston end and a rod portion there between, wherein the connecting rods generally lie in a common plane perpendicular to an input shaft axis with each of the crankshaft ends axially offset from one another in a dogleg manner lying on opposite side of the common plane to surround the crankpin;', 'a friction reduction element disposed between the connecting rod crankshaft ends; and', 'a pair of ...

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Номер записи: 89
18-12-2014 дата публикации

Compressor for Pressurized Fluid Output

Номер: US20140369873A1
Автор: Bassine Stuart H.
Принадлежит:

A compressor moves a fluid from an inlet to an outlet and provides a pressure differential there between due to respective pistons moving in and out of a plurality of piston chambers via a piston rod. A rotating shaft extends through a grooved end plate, and the rotating shaft is connected to either the grooved end plate or the piston rod. The grooved end plate defines an off center or eccentric groove. A bearing extends from the piston rod and fits within the groove such that when the rotational motion of the shaft rotates either the piston rod or the grooved end plate, the piston rod slides back and forth relative to the rotating shaft. Each position of the bearing within the groove determines a corresponding position of the piston rod relative to the rotating shaft. Each pair of pistons may extend from a single, continuous piston rod. 1. A compressor for moving a gas from an inlet to an outlet and providing a pressure differential between the inlet and the outlet due to respective pistons moving in and out of a plurality of piston chambers , wherein a rotating shaft extends in a first direction through a grooved end plate extending across the compressor in a second direction substantially perpendicular to the rotating shaft , wherein the rotating shaft is connected to either the grooved end plate or the piston rod , wherein the grooved end plate defines a substantially circular groove positioned off center with respect to the shaft , and wherein a piston rod extends through the compressor substantially perpendicular to the rotating shaft , the piston rod sliding back and forth relative to the rotating shaft such that the respective pistons are alternately closer to and farther from the rotating shaft , the compressor comprising:a bearing extending from the piston rod and fitting within the groove in the first end plate such that when the rotational motion of the shaft rotates either the piston rod or the first end plate, the bearing traverses the groove in the ...

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Номер записи: 90
22-10-2015 дата публикации

MANIFOLD INCLUDING MOUNTING PLATE FOR FLUID END BLOCK OF RECIPROCATING PUMP ASSEMBLY

Номер: US20150300332A1
Автор: Cobb Chad, Kotapish Ed
Принадлежит:

In one aspect, a fluid end portion of a reciprocating pump assembly includes a fluid end block and an inlet manifold connected thereto. The manifold includes an opening formed therethrough and including a slot portion to facilitate the connection between the inlet manifold and the fluid end block. In another aspect, a method of connecting an inlet manifold to a fluid end block includes inserting fasteners into respective openings in the fluid end block, and effecting relative movement between the inlet manifold and the fluid end block so that the fasteners pass within respective slot portions formed through a mounting plate of the inlet manifold. In yet another aspect, a manifold is adapted to be connected to a fluid end block and includes an elongated member and a mounting plate connected thereto. The mounting plate includes openings formed therethrough, the openings including respective slot portions spaced in a parallel relation. 1. A fluid end portion of a reciprocating pump assembly , the fluid end portion being adapted to be operably coupled to a power end portion of the reciprocating pump assembly , the fluid end portion comprising:a fluid end block comprising a bottom surface and a first plurality of openings formed in the bottom surface;an inlet manifold connected to the fluid end block, the inlet manifold comprising a mounting plate mated against the bottom surface of the fluid end block, the mounting plate comprising a second plurality of openings formed therethrough and generally aligned with the first plurality of openings, respectively, wherein a first opening in the second plurality of openings comprises a first slot portion to facilitate the connection between the inlet manifold and the fluid end block; and through a respective one of the openings in the second plurality of openings and thus through the mounting plate, and', 'into a respective one of the openings in the first plurality of openings that is generally aligned with the one opening in the ...

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Номер записи: 91
03-09-2020 дата публикации

DUAL ENGINE-COMPRESSOR SYSTEM

Номер: US20200277946A1
Автор: Gamble Christopher L.
Принадлежит:

The present invention is directed to a dual engine-compressor system having a crankcase enclosing a crankshaft and having engine cylinder housings and compressor cylinder housings linearly disposed on opposite sides of the crankcase. Combustion pistons are reciprocatingly disposed in the engine cylinder housings and defines alternating combustion chambers on opposite sides of the pistons. Compressor pistons are reciprocatingly disposed in the compressor housings and define alternating low and high pressure compressor chambers on opposite sides of the compressor pistons. The compressor pistons undergo a 4-cycle process to drawn in, re-distribute, and then compress fluid. The compressor cylinder and piston has a series of one-way intakes and reed valves to selectively draw or push fluid in response to movement of the compressor piston.

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Номер записи: 92
11-10-2018 дата публикации

Compressor with Adaptable Transmission with Respect to the Motive Source

Номер: US20180291883A1
Автор: HEBRARD Gilles
Принадлежит: KNORR-BREMSE SYSTEME FUER NUTZFAHRZEUGE GMBH

A compressor has a crankcase in which a crankshaft is rotatably mounted in a crankspace. The crankcase contains at least one cylinder space in which a piston, mounted eccentrically on the crankshaft by way of a connecting rod, can be driven in reciprocating motion. The crankshaft is connected, via a gearing having a modulus m, to a drive source, wherein the gear wheel arranged on the crankshaft engages with the gear wheel on the drive source. The axis of rotation of the crankshaft is offset with respect to the center axis of the cylinder space by an amount dl which is a whole multiple of m/2. The center axis of the cylinder space is understood as the axis which proceeds from the center point of the base area of the cylinder space, perpendicular to this base area, and along which the piston moves. This makes it possible to change the transmission ratio of the gearing within an advantageous range, without it being necessary to undertake modifications to the external dimensions of the compressor or to the motive source. Depending on the transmission ratio, it is possible to reduce the operating noise of the compressor or to increase the air capacity. 15-. (canceled)6. A compressor , comprising:a crankcase;a crankshaft mounted rotatably in a crank chamber of the crankcase, the crankcase containing at least one cylinder space, in which a piston which is mounted eccentrically on the crankshaft by way of a connecting rod performs a reciprocating movement;a gearwheel mechanism by which the crankshaft is connectable to a drive source, the gearwheel mechanism having a modulus m, whereinthe gearwheel which is arranged on the crankshaft engages into the gearwheel of the drive source, anda rotational axis of the crankshaft is offset with respect to a center axis of the cylinder space by a value dl which is an integral multiple of m/2.7. The compressor as claimed in claim 6 , whereinthe gearwheel mechanism has a transmission ratio between 1:0.9 and 1:1.1 from the drive source to ...

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Номер записи: 93
19-09-2019 дата публикации

COMPRESSOR

Номер: US20190285061A1
Автор: Goldner Gal
Принадлежит:

A compressor, and more particularly, an axial double piston compressor. 1. A compressing unit comprising:a cylinder;a first piston configured to slide along said cylinder; anda connecting rod attached to said first piston at a first end and to a crank at a second end, said crank configured to be directly attached to a motor shaft; andwherein a length L of said connecting rod is substantially greater than an operating radius R of said crank.2. A compressing unit wherein said length L of said connecting rod is at least five times greater than said operating radius R of said crank.3. A compressing unit wherein said length L of said connecting rod is at least ten times greater than said operating radius R of said crank.4. A compressing unit according to wherein said first end of said connecting rod comprises an integral flexible pivot.5. A compressing unit according to wherein said integral flexible pivot is integral with said first piston.6. A compressing unit according to wherein said first piston comprises a sliding surface integral with said piston.7. A compressing unit according to further comprising a second piston configured to slide along said cylinder.8. A compressing unit according to further comprising a piston rod connecting said first piston to said second piston.9. A compressing unit according to wherein said length L of said connecting rod is greater than half the length of said piston rod.10. A compressing unit according to wherein said motor shaft comprises an electric motor shaft.11. A method of producing a compressing unit claim 1 , the method comprising:integrally producing a first piston with a connecting rod and a flexible pivot therebetween,wherein said connecting rod is integral with said first piston at a first end and connects to a crank at a second end, said crank configured to be directly attached to a motor shaft; andwherein a length L of said connecting rod is substantially greater than an operating radius R of said crank.12. A method ...

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Номер записи: 94
20-10-2016 дата публикации

Railway Vehicle Air Compressor with Integral High Pressure Cylinder Unloader Valve

Номер: US20160305414A1
Автор: Mitsch Matthew D.
Принадлежит:

An air compressor for a railway vehicle includes a compressor housing, at least one piston cylinder supported in the compressor housing, the at least one piston cylinder including a cylinder head and a piston, a crankshaft assembly supported by the compressor housing and linked to the piston of the at least one piston cylinder, and an unloader valve positioned on the cylinder head of the at least one piston cylinder. The unloader valve may be configured to exhaust pressurized air from the at least one piston cylinder. 1. An air compressor for a railway vehicle , comprising:a compressor housing;at least one piston cylinder supported in the compressor housing, the at least one piston cylinder comprising a cylinder head and a piston;a crankshaft assembly supported by the compressor housing and linked to the piston of the at least one piston cylinder; andan unloader valve positioned on the cylinder head of the at least one piston cylinder;wherein the unloader valve is configured to exhaust pressurized air from the at least one piston cylinder.2. The air compressor as claimed in claim 1 , the unloader valve comprising a two-way solenoid valve.3. The air compressor as claimed in claim 1 , further comprising a valve stem configured for insertion into a passageway defined by the cylinder head claim 1 , wherein the unloader valve is connected to the cylinder head via the valve stem.4. The air compressor as claimed in claim 3 , the valve stem comprising:an upper portion;a threaded portion; andan extended intermediate portion positioned between the upper portion and the threaded portion;wherein the unloader valve is threadedly coupled to the upper portion of the valve stem.5. The air compressor as claimed in claim 1 , further comprising a compressor magnet valve connected to the unloader valve claim 1 ,wherein the compressor magnet valve is configured to operate in an open state and a closed state, andwherein, when positioned in the closed state, the compressor magnet valve ...

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Номер записи: 95
20-10-2016 дата публикации

Valve Stem for Integral High Pressure Cylinder Unloader Valve

Номер: US20160305422A1
Автор: Mitsch Matthew D.
Принадлежит:

A valve stem for use with an air compressor includes an upper portion, a connecting portion, an extended intermediate portion positioned between the upper portion and the connecting portion, and a lower tapered portion positioned on a bottom surface of the connecting portion. The valve stem may define a through hole extending from a top surface of the valve stem to a bottom surface of the valve stem. An upper portion of the through hole may be threaded. The upper portion may include a hexagonal cross-sectional shape. The lower tapered portion may include an inclined surface that transitions from a larger diameter to a smaller diameter. The valve stem allows for fluid connection from a pressurized volume to atmosphere. 1. A valve stem for use with an air compressor , comprising:an upper portion;a connecting portion;an extended intermediate portion positioned between the upper portion and the connecting portion; anda lower tapered portion positioned on a bottom surface of the connecting portion.2. The valve stem as claimed in claim 1 , wherein the connecting portion is threaded.3. The valve stem as claimed in claim 1 , wherein the valve stem defines a through hole extending from a top surface of the valve stem to a bottom surface of the valve stem.4. The valve stem as claimed in claim 3 , wherein an upper portion of the through hole is threaded.5. The valve stem as claimed in claim 1 , wherein the upper portion comprises a hexagonal cross-sectional shape.6. The valve stem as claimed in claim 1 , wherein the lower tapered portion comprises an inclined surface that transitions from a larger diameter to a smaller diameter.7. The valve stem as claimed in claim 1 , further comprising an O-ring positioned around the extended intermediate portion and against a bottom surface of the upper portion.8. The valve stem as claimed in claim 1 , wherein the extended intermediate portion has a smaller diameter than the upper portion and the connecting portion.9. The valve stem as ...

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Номер записи: 96
05-11-2015 дата публикации

Discharge Reed Valve for Reciprocating Refrigeration Compressor

Номер: US20150316044A1
Автор: Lifson Alexander
Принадлежит: CARRIER CORPORATION

A backer for a reed valve has: a first surface for engaging the valve reed; a second surface opposite the first surface; a base portion for mounting to a compressor housing; a distal portion for engaging a distal portion of the reed; and at least one trunk connecting the base portion to the distal portion. The first surface is transversely convex along a portion of the trunk. The trunk is relatively wider near the base portion than near the distal portion. 2. The backer of wherein:{'b': 232', '232', '232, 'the distal portion comprises a plurality of lobes (A, B, C); and'}{'b': 230', '230', '230, 'the at least one trunk comprises a plurality of trunks (A, B, C).'}3. The backer of wherein:the plurality of lobes is a plurality of contiguous lobes.4. The backer of wherein:the plurality of trunks and the plurality of lobes are equal in number.5. The backer of wherein:the number is three.6. The backer of wherein:the base portion has exactly two bolt holes.7. The backer of wherein:the width of the trunk at a location 35% of a span from a proximal end is at least 15% greater than the width of the trunk at a location 35% of the span from a distal end.8. The backer of wherein:{'b': 580', '580', '202', '232', '232, 'the width of the trunk at a location 30% of a span from a center (A, B) of a mounting hole () to a center of a lobe (A, C) is at least 15% greater than the width of the trunk at a location 30% of the span from the center of the mounting hole to the center of the lobe.'}9. The backer of wherein:an inter-trunk gap has a length of 10-30% of a span from a center of a mounting hole to a center of a lobe.10. The backer of wherein:the trunk has a lateral protrusion.11. The backer of wherein:the backer consists essentially of stamped steel.1296. A compressor valve assembly () comprising:{'b': '80', 'claim-text': [{'b': '120', 'a mounting surface () portion;'}, {'b': '92', 'a port (); and'}, {'b': '220', 'a seat () surrounding the port;'}], 'a valve plate () having{'claim- ...

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Номер записи: 97
03-11-2016 дата публикации

COMPRESSOR

Номер: US20160319809A1
Автор: HUETTER Sebastian
Принадлежит: Kaeser Kompressoren SE

A compressor includes a motor, a drive shaft driven by the motor and connected thereto, a crank mechanism connected to the drive shaft, at least one compressed-air generation apparatus that is driven by the crank mechanism and is designed to generate compressed air, a crankcase that has an inner chamber wall in the shape of a hollow body, which receives the drive shaft at least in portions, an outer chamber wall that is spaced apart from the inner chamber wall radially with respect to the drive shaft, and a dividing wall, and a compressed-air storage container that is designed to receive compressed air generated by the compressed-air generation apparatus. The compressed-air storage container is formed by the inner chamber wall, the outer chamber wall, the end wall and the dividing wall. 1. A compressor , comprising:a motor;a drive shaft driven by the motor and connected thereto;a crank mechanism connected to the drive shaft;at least one compressed-air generation apparatus that is driven by the crank mechanism and is designed to generate compressed air; an inner chamber wall in the shape of a hollow body, which receives the drive shaft at least in portions,', 'an outer chamber wall that is spaced apart from the inner chamber wall radially with respect to the drive shaft,', 'an end wall and', 'a dividing wall; and, 'a crankcase that has'}a compressed-air storage container that is designed to receive compressed air generated by the compressed-air generation apparatus, wherein the compressed-air storage container is formed by the inner chamber wall, the outer chamber wall, the end wall and the dividing wall.2. The compressor according to claim 1 , further comprising:a motor mount that receives the motor and is connected to the crankcase by forming the end wall between the crankcase and the motor.3. The compressor according to claim 1 , further comprising:at least one first bearing that supports the drive shaft and is arranged within the hollow body formed by the inner ...

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Номер записи: 98
12-11-2015 дата публикации

RADIALLY CONFIGURED OIL-FREE COMPRESSOR

Номер: US20150322933A1
Автор: Hritz Jeffrey
Принадлежит:

An oil-free compressor for a rail vehicle includes a compressor housing, a first low pressure piston cylinder supported in the compressor housing, a second low pressure piston cylinder supported in the compressor housing, a first high pressure piston cylinder supported in the compressor housing, a second high pressure piston cylinder supported in the compressor housing, and a crankshaft assembly supported by the compressor housing and linked to pistons of the piston cylinders by respective connecting rods. The first and second low pressure piston cylinders and the first and second high pressure piston cylinders are positioned in an X-shaped configuration around an outer circumference of the compressor housing. The first and second high pressure piston cylinders are configured as first and second lower legs of the X-shaped configuration, and the first and second low pressure piston cylinders are configured as first and second upper legs of the X-shaped configuration. 1. An oil-free compressor for a rail vehicle , comprising:a compressor housing;a first low pressure piston cylinder supported in the compressor housing;a second low pressure piston cylinder supported in the compressor housing;a first high pressure piston cylinder supported in the compressor housing;a second high pressure piston cylinder supported in the compressor housing; anda crankshaft assembly supported by the compressor housing and linked to pistons of the piston cylinders by respective connecting rods,wherein the first and second low pressure piston cylinders and the first and second high pressure piston cylinders are positioned in an X-shaped configuration around an outer circumference of the compressor housing.2. The oil-free compressor as claimed in claim 1 , wherein the first and second high pressure piston cylinders are configured as first and second lower legs of the X-shaped configuration claim 1 , and the first and second low pressure piston cylinders are configured as first and second ...

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Номер записи: 99
12-11-2015 дата публикации

High pressure bidirectional miniature electric gas pump

Номер: US20150322936A1
Автор: Weili Jiang
Принадлежит: Beijing Const Instruments Technology Inc

Provided is a multi-range field full-automatic pressure and electric signal calibrating instrument, comprising: control components such as a shell, a power switch, multiple-interfaces, a display, a keyboard, and a gas pressure generating unit, a power supply unit, a pressure detecting unit, a gas pressure control unit and an electric signal detecting unit; the pressure output end of the pressure control unit is in parallel connection with pressure joints which are used for installing multiple pressure standard meters and detected meters with different ranges; the pressure control unit is in signal connection with the pressure standard meters; the electric signal detecting unit is in signal connection with the pressure control unit and the detected meters; the power supply unit can supply power by batteries. The calibrating instrument does not need to be externally connected with a gas cylinder and an alternating current power supply and can automatically generate a gas pressure and generate an accurate standard pressure; the design of the multi-range pressure standard meter can be suitable for various detected meters; the double detection and calibration for pressure and electric signals can be implemented; the weight and volume of the instrument are small; and the multi-range field full-automatic pressure and electric signal calibrating instrument is convenient to carry in the field and can carry out automatic calibration on various field pressure instruments.

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Номер записи: 100