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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 2087. Отображено 100.
03-05-2012 дата публикации

Slide Parts and Equipment Including Same

Номер: US20120103182A1
Автор: Itto SUGIMOTO
Принадлежит: HITACHI LTD

It is an objective of the invention to provide a slide part in which a seal member formed of an elastic body is in sliding contact with a hard member. There is provided a slide part comprising: a hard member having an amorphous carbon coating containing nitrogen formed on an outermost surface of a substrate; and a seal member formed of an elastic body, the seal member being in sliding contact with the hard member, wherein: content of the nitrogen in the coating is 3 at. % or more and 25 at. % or less, taking a total content of the carbon and the nitrogen in the coating as 100 at. %; the seal member contains fluorine at least in a sliding contact surface region thereof; and content of the fluorine in the surface region of the seal member is equal to or more than the nitrogen content in the coating.

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Номер записи: 1
16-08-2012 дата публикации

Engine cooling apparatus

Номер: US20120204820A1
Автор: Daishi Takahashi, Nozomi Sasaki, Shinichiro Nogawa
Принадлежит: Toyota Motor Corp

The cooling apparatus 1 includes the engine 50 having a cylinder block 51 provided with a partial W/J 511 a circulating a coolant in the periphery of a cylinder 53 a , and a cylinder head 52 . In the cooling apparatus 1 , the cylinder 53 a is formed with a cylinder liner 53 , and the cylinder liner 53 is configured with a functionally graded material such that a heat conductivity of a top dead center side is larger than that of a bottom dead center side.

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Номер записи: 2
04-10-2012 дата публикации

Swash plate type variable displacement compressor

Номер: US20120247319A1
Автор: Masaki Ota, Nobuaki Hoshino, Noriyuki Shintoku, Yoshio Kimoto, Yusuke Yamazaki
Принадлежит: Toyota Industries Corp

A housing has a peripheral wall that surrounds a crank chamber. The peripheral wall has a valve chamber that is recessed radially inward from an outer surface of the peripheral wall with respect to the axis. A bimetal member, which deforms in correspondence with the temperature in the crank chamber, is arranged in the valve chamber. A valve body, which is supported by the bimetal member, is arranged in the valve chamber. The peripheral wall has a first oil discharge passage and allows communication between the crank chamber and the valve chamber, and a second oil discharge passage through which the valve chamber and a suction chamber communicate with each other. When the temperature in the crank chamber exceeds a predetermined value and deforms the bimetal member to move the valve body, communication between the first and second oil discharge passage is permitted through the valve chamber.

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Номер записи: 3
28-02-2013 дата публикации

Lubrication of screw machines

Номер: US20130052072A1
Автор: Ian Kenneth Smith, Nikola Rudi Stosic
Принадлежит: City University of London

A screw machine for use with a working fluid with a liquid phase present comprises rotors having meshed, lubricated helical formations. The rotors have an ‘N’ profile as disclosed in WO 97/43550. In use, lubrication of the helical formations of the rotors and optionally of the rotor bearings is achieved substantially exclusively with the liquid phase of the working fluid.

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Номер записи: 4
07-03-2013 дата публикации

Cylinder liner with a thermal barrier coating

Номер: US20130055993A1
Автор: Blair Matthew Jenness, Robert Reuven AHARONOV, Troy Clayton Kantola
Принадлежит: Individual

A cylinder liner includes a body formed of a metal material extending circumferentially around a center axis with an outer surface facing away from the center axis. A thermal barrier coating including an insulating material having a thermal conductivity of not greater than 5 W/(m·K) is applied to the outer surface. The thermal barrier coating is thermally applied to the outer surface at a velocity of 100 to 1,000 m/s, for example by a high velocity oxygen fuel (HVOF) spray, a plasma spray, or a detonation gun.

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Номер записи: 5
17-10-2013 дата публикации

Combustion chamber inserts and associated methods of use and manufacture

Номер: US20130269666A1
Автор: Roy Edward McAlister
Принадлежит: McAlister Technologies LLC

Combustion chamber inserts and associated methods of use and manufacture are disclosed herein. In some embodiments, a combustion chamber assembly comprises a cylinder having a cylinder wall at least partially defining a combustion chamber, an intake valve, an exhaust valve, and a piston. The intake valve has an intake valve surface exposed to the combustion chamber, the exhaust valve has an exhaust valve surface exposed to the combustion chamber, and the piston has a piston surface exposed to the combustion chamber. At least one of the cylinder wall, the intake valve surface, the exhaust valve surface, and/or the piston surface includes an insulative portion composed of a synthetic matrix characterization of crystals that is configured to retain heat in the combustion chamber that is generated from a combustion event in the combustion chamber.

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Номер записи: 6
06-01-2022 дата публикации

Piston for an internal combustion engine and internal combustion engine

Номер: US20220003186A1
Автор: Alois Lecker, Reinhard Rose
Принадлежит: MAHLE International GmbH

A piston for an internal combustion engine may include a piston crown and a heat management coating. The heat management coating may be disposed on at least a region of an outer surface of the piston crown. The heat management coating may include a base layer and a functional layer. The base layer may be disposed between the piston crown and the functional layer, and may be adjoining the outer surface of the piston crown. The base layer may have a base layer matrix including a first polysilazane. The functional layer may have a functional layer matrix including a second polysilazane. The second polysilazane may be different from the first polysilazane.

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Номер записи: 7
02-01-2020 дата публикации

Adaptive self-sealing microfluidic gear pump

Номер: US20200003208A1
Автор: Anette E. Hosoi, Irmgard Bischofberger, Qing Zhang, Tianshi Fang, Yongbin Sun, Youzhi Liang
Принадлежит: Massachusetts Institute of Technology

A microfluidic pumping system configured to prevent backflow from an outlet of the system toward an inlet of the system. The microfluidic pumping system comprising a gear housing that has an inlet and an outlet and that houses a drive gear, an idler gear and a drive shaft. The system further includes a front end plate that is coupled to a first surface of the gear housing and a rear end plate that is coupled to a second, different surface of the gear housing. Also coupled to the gear housing is a first and second Halbach magnet arrays that is disposed between the front end plate and the rear end plate. The first and second Halbach magnet arrays include one or more solenoids and the first Halbach magnet array is disposed proximate to the drive gear and the second Halbach magnet array is disposed proximate to the idler gear.

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Номер записи: 8
27-01-2022 дата публикации

CIRCULAR MAGNETIC FIELD GENERATOR AND PUMP WITH ROTATING PERMANENT MAGNET

Номер: US20220025888A1
Автор: Müllner Peter
Принадлежит:

A system may include a magnetic shape memory (MSM) element having a longitudinal axis that extends from a first end of the MSM element to a second end of the MSM element. The system may further include a rotatable permanent magnet configured to rotate around an axis of rotation and positioned proximate to the MSM element. The system may also include a first solenoid having a first solenoid axis directed at the rotatable permanent magnet. The system may include a second solenoid having a second solenoid axis directed at the rotatable permanent magnet. A method may include applying a first alternating current (AC) signal to the first solenoid and a second AC signal to the second solenoid to cause the rotatable permanent magnet to rotate. 1. A system comprising:a magnetic shape memory (MSM) element having a longitudinal axis that extends from a first end of the MSM element to a second end of the MSM element;a rotatable permanent magnet configured to rotate around an axis of rotation and positioned proximate to the MSM element;a first solenoid having a first solenoid axis directed at the rotatable permanent magnet; anda second solenoid having a second solenoid axis directed at the rotatable permanent magnet.2. The system of claim 1 , further comprising:a pump housing having an inlet and an outlet formed within an inner surface of the pump housing, wherein the MSM element is positioned adjacent to the inner surface of the pump housing and extends from the inlet to the outlet.3. The system of claim 1 , wherein a rotating magnetic field produced by the rotatable permanent magnet causes a contracted portion of an MSM element to move from the first end of the MSM element to the second end of the MSM element.4. The system of claim 1 , wherein magnetic fields produced by the first solenoid and the second solenoid cause the rotatable permanent magnet to rotate.5. The system of claim 1 , wherein the first solenoid axis and the second solenoid axis intersect at an angle of ...

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Номер записи: 9
09-01-2020 дата публикации

COMPRESSION-IGNITION INTERNAL COMBUSTION ENGINE

Номер: US20200011236A1
Автор: KAWAE Tsutomu, TANNO Shiro
Принадлежит:

A compression-ignition internal combustion engine includes a fuel injection nozzle including a tip end portion exposed in a combustion chamber and a nozzle hole formed at the tip end portion; and a passage forming member forming a flow guide passage through which fuel injected from the nozzle hole passes. The passage forming member includes a passage wall portion located radially outward of the flow guide passage. The passage wall portion includes a first layer that is a base portion connected to a cylinder head, and a second layer located radially outward or radially inward of the first layer. The toughness of the first layer is higher than the toughness of the second layer. The thermal conductivity of the second layer is lower than the thermal conductivity of the first layer. 1. A compression-ignition internal combustion engine , comprising:a fuel injection nozzle including a tip end portion exposed in a combustion chamber and a nozzle hole formed at the tip end portion; anda passage forming member forming a flow guide passage through which fuel injected from the nozzle hole passes,wherein the passage forming member includes a passage wall portion located radially outward of the flow guide passage,wherein the passage wall portion includes a first layer that is a base portion connected to a cylinder head, and a second layer located radially outward or radially inward of the first layer,wherein a toughness of the first layer is higher than a toughness of the second layer, andwherein a thermal conductivity of the second layer is lower than a thermal conductivity of the first layer.2. The compression-ignition internal combustion engine according to claim 1 ,wherein the second layer is located radially outward of the first layer.3. The compression-ignition internal combustion engine according to claim 1 ,wherein a gap is formed between an outlet of the nozzle hole and an inlet of the flow guide passage, andwherein a heat capacity per unit volume of the second layer is ...

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Номер записи: 10
09-01-2020 дата публикации

Internal combustion engine

Номер: US20200011237A1
Автор: Akio Kawaguchi, Fumio Shimizu, Hideo Yamashita, Keisuke Tanaka, Naoki Nishikawa, Toshio Horie, Yoshifumi Wakisaka
Принадлежит: Toyota Motor Corp

The present embodiment relates to an internal combustion engine having an anodic oxide coating formed on at least a portion of an aluminum-based wall surface facing a combustion chamber. The anodic oxide coating has a plurality of nanopores extending substantially in the thickness direction of the anodic oxide coating, a first micropore extending from the surface toward the inside of the anodic oxide coating, and a second micropore present in the inside of the anodic oxide coating; the surface opening diameter of the nanopores is 0 nm or larger and smaller than 30 nm; the inside diameter of the nanopores is larger than the surface opening diameter; the film thickness of the anodic oxide coating is 15 μm or larger and 130 μm or smaller; and the porosity of the anodic oxide coating is 23% or more.

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Номер записи: 11
15-01-2015 дата публикации

Nickel Based Alloy for Forging

Номер: US20150017015A1
Автор: Doi Hiroyuki, IMANO Shinya, Sato Jun
Принадлежит:

A nickel (Ni) based alloy for forging includes: 0.001 to 0.1 wt. % of carbon (C); 12 to 23 wt. % of chromium (Cr); 3.5 to 5.0 wt. % of aluminum (Al); 5 to 12 combined wt. % of tungsten (W) and molybdenum (Mo) in which the Mo content is 5 wt. % or less; a negligible small amount of titanium (Ti), tantalate (Ta) and niobium (Nb); and the balance of Ni and inevitable impurities. 1. A forged product made of an Ni based alloy capable of being forged , the Ni based alloy including:{'sub': 3', '3, '0.001 to 0.04 wt. % of C; 12 to 23 wt. % of Cr; 3.5 to 5.0 wt. % of Al; more than 15 wt. % but not more than 23 wt. % of Co; 5 to 12 combined wt. % of W and Mo in which the Mo content is 5 wt % or less; a negligible small amount of Ti, Ta and Nb; and the balance of Ni and inevitable impurities, wherein NiAl phase grains of an average diameter of 50 to 100 nm precipitate in the alloy with a volume percentage of 30% or more at or below 700° C.; temperature of solid solution limit line (solvus temperature) of the NiAl phase is 1000° C. or lower; and 100,000-hour creep rupture strength of the alloy is 100 MPa or more at 750° C.'}2. The forged product according to claim 1 , wherein the forged product is a component for use in a steam turbine plant.3. The forged product according to claim 1 , wherein the forged product is a boiler tube for use in a steam turbine plant having main steam temperature of 720° C. or higher.4. The forged product according to claim 1 , wherein the forged product is a bolt for use in a steam turbine plant and used at a temperature of 750° C. or higher.5. The forged product according to claim 1 , wherein the forged product is a steam turbine rotor used at a temperature of 750° C. or higher.6. The forged product according to claim 1 , wherein the forged product is prepared by a procedure including:{'sub': '3', 'hot forging the Ni based alloy into a predetermined shape at a temperature higher than a temperature of solid solution limit line (solvus temperature) ...

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Номер записи: 12
03-02-2022 дата публикации

THERMAL BARRIER COATINGS FOR INTERNAL COMBUSTION ENGINES

Номер: US20220034257A1
Автор: Jiang Chen, Jordan Eric, Kumar Rishi, Nair Balakrishnan
Принадлежит: THE UNIVERSITY OF CONNECTICUT

A thermal barrier coating for an internal combustion engine includes an insulating thermal spray coating, where a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form and the chosen material includes a coefficient of thermal expansion within 5 ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed. 1. A thermal barrier coating for an internal combustion engine , comprising:an insulating thermal spray coating, wherein:a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form; and{'b': '5', 'the chosen material includes a coefficient of thermal expansion within ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed.'}2. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises a perovskite material.3. The thermal barrier coating of claim 2 , wherein the perovskite material is of the ABOcategory claim 2 , where A and B are cations.4. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum molybdate (LaMoO).5. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum molybdate (LaMoO) with at least one dopant claim 1 , wherein the dopant is one of Bi claim 1 , Ni claim 1 , Rb claim 1 , Y claim 1 , Gd claim 1 , Nd claim 1 , Ba claim 1 , Sr claim 1 , Ca.6. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises gadolinium zirconate (GdZrO).7. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum strontium cobalt ferrites claim 1 , of the type LaSrCoFeOoxides.8. The thermal barrier coating of claim 7 , wherein the x=0.4.9. The thermal barrier coating ...

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Номер записи: 13
18-01-2018 дата публикации

SCROLL COMPRESSOR

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

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

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Номер записи: 14
24-01-2019 дата публикации

DIAPHRAGM PUMP, INK SUPPLY SYSTEM, AND INKJET PRINTER

Номер: US20190023021A1
Автор: Atsumi Hidetoshi
Принадлежит:

A diaphragm pump includes a pump chamber, a diaphragm, and a diaphragm deformer. The pump chamber is box-shaped and includes at least an inlet opening, an outlet opening, and a diaphragm attaching opening. The pump chamber is provided with an inner space. A diaphragm is made of an elastically deformable material, and is provided in the pump chamber so as to cover the diaphragm attaching opening. The diaphragm deformer elastically deforms the diaphragm to change a capacity of the inner space. The outlet opening is located at a highest position in the inner space of the pump chamber. 1. A diaphragm pump , comprising:a pump chamber that is box-shaped and includes at least an inlet opening allowing a liquid to flow into the pump chamber therethrough from outside, an outlet opening allowing the liquid to flow out of the pump chamber therethrough, a diaphragm attaching opening, and an inner space;a diaphragm made of an elastically deformable material and provided in the pump chamber so as to cover the diaphragm attaching opening; anda diaphragm deformer provided outside the pump chamber and coupled with the diaphragm, the diaphragm deformer elastically deforming the diaphragm to change a capacity of the inner space; whereinthe outlet opening is located at a highest position in the inner space of the pump chamber.2. The diaphragm pump according to claim 1 , whereinthe pump chamber includes a top surface provided with the outlet opening; andthe top surface includes an inclining surface extending downward from the outlet opening.3. The diaphragm pump according to claim 2 , wherein the inlet opening is provided in the inclining surface.4. The diaphragm pump according to claim 1 , whereinthe pump chamber includes a first inner wall facing the diaphragm; andthe diaphragm deformer elastically deforms the diaphragm such that a gap is provided between the diaphragm and the first inner wall even in a state where the diaphragm and the first inner wall are closest to each other.5. ...

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Номер записи: 15
24-04-2014 дата публикации

Piston and tribological system consisting of a piston and a cylinder running surface of a cylinder crank case for an internal combustion engine

Номер: US20140109861A1
Автор: Cedric Dobua, Stephan Korner, Wolfgang Schlenther
Принадлежит: MAHLE International GmbH

A piston for an internal combustion engine may include a piston head and a piston skirt. The piston skirt may have piston bosses provided with boss bores. The piston bosses may be connected to each other at running surfaces. The running surfaces may be provided at least partially with a coating which is sprayed using a cold gas method. The material of the coating may be selected from the group comprising at least one of nickel, iron, copper, nickel-based alloys, iron-based alloys, copper-nickel-tin-based alloys and copper-tin-silver-based alloys.

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Номер записи: 16
02-02-2017 дата публикации

Compressor, compressor housing, and method for manufacturing compressor housing

Номер: US20170030343A1
Автор: Shinya Yamamoto, Shu OKASAKA
Принадлежит: Sumitomo Bakelite Co Ltd

A housing ( 10 ) of a compressor ( 1 ) according to the present embodiment includes at least one compression chamber ( 101 ) that compresses a gas aspirated into the inside thereof and is composed of a metal-resin composite ( 16 ) in which a resin member ( 14 ) composed of a thermosetting resin composition and a metal member ( 12 ) are bonded to each other. In a case where the metal-resin composite ( 16 ) is made into a test piece in which the resin member ( 14 ) having a thickness d 1 and the metal member ( 12 ) having a thickness d 2 are laminated on and bonded to each other and a ratio of d 1 /d 2 is 3, and the test piece is put in a first state where the test piece is disposed, the surface on the resin member ( 14 )-exposed side up, on two supports with no stress applied thereto and a second state where a 1-point bending stress of 140 MPa is applied in a thickness direction to the center of the surface on the resin member ( 14 ) side such that the center caves in after the first state, when putting in the first and second states is alternately repeated 1,000,000 times at a frequency of 30 Hz under a temperature condition of 25° C., the metal-resin composite exhibits bending fatigue resistance in which neither peeling nor fracture occurs.

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Номер записи: 17
02-02-2017 дата публикации

Compressor With Thermally-Responsive Modulation System

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

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

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Номер записи: 18
31-01-2019 дата публикации

Method and system for processing an automotive engine block

Номер: US20190032594A1
Автор: Marie-Christine Jones, Qigui Wang, Yucong Wang
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A method and system for processing an engine block that includes a cylinder liner. The engine block having a first material with different coefficient of thermal expansion than a second material forming the cylinder liner. The method includes providing an insulating barrier to the cylinder liner, and quenching the engine block. The insulating barrier provides a lower cooling rate to the second material forming the cylinder liner than a cooling rate for the first material forming the engine block during the quenching.

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Номер записи: 19
19-02-2015 дата публикации

Piston for internal combustion engine

Номер: US20150047498A1
Автор: Ryotaro Takada, Yositaka Tsujii
Принадлежит: Honda Motor Co Ltd

A piston that moves reciprocally in the cylinder of an internal combustion engine and has a piston skirt that makes sliding contact with the inner wall of the cylinder. Solid lubrication parts are provided on the sliding-contact surface of the piston skirt. The solid lubrication parts include at least one type of silver, silver alloy, copper, or copper alloy, and at least one type of carbon material or carbide ceramics.

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Номер записи: 20
08-05-2014 дата публикации

Friction and wear reduction in cryogenic mechanisms and other systems

Номер: US20140126848A1
Автор: Daniel Vukobratovich, James E. Scroggin, Konstantine J. Christopoulos
Принадлежит: Raytheon Co

An apparatus includes a first component having a first surface and a second component having a second surface. The first surface includes sputtered gold, and the second surface includes a stainless steel alloy. The first surface is configured to contact the second surface, and one of the components is configured to move against another of the components. The stainless steel alloy could consist of a UNS 21800/AISI Type S21800 metal. The sputtered gold could include ion sputtered gold, and the sputtered gold could have a thickness of about 1 micron. The first component could include a first blade of an adjustable aperture mechanism, where the adjustable aperture mechanism also includes a second blade. The second component could include a first plate of the adjustable aperture mechanism, where the adjustable aperture mechanism further includes a second plate. The blades can be configured to move within a space between the plates.

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Номер записи: 21
14-02-2019 дата публикации

SCROLL PUMP TIP SEALING

Номер: US20190048721A1
Автор: Jones Peter David, Lamb Peter Charles
Принадлежит:

A scroll pump tip seal to seal a single stage of a scroll pump that includes a first scroll and a second scroll. The tip seal is formed of a plurality of seal segments fitted contiguously end to end to a tip face the scroll wall of the scroll to form a continuous seal between the tip face and a base plate of the second scroll. 1. A scroll pump comprising:an orbiting scroll;a fixed scroll; anda driver configured to impart an orbiting motion to the orbiting scroll relative to the fixed scroll;wherein said orbiting scroll comprises an orbiting scroll base plate and an orbiting scroll wall extending from said orbiting scroll base plate towards said fixed scroll and said fixed scroll comprises a fixed scroll base plate and a fixed scroll wall extending from said fixed scroll base plate towards said orbiting scroll,said orbiting scroll wall has a tip face that faces said fixed scroll base plate and said fixed scroll wall has a tip face that faces said orbiting scroll base plate,said tip face of the orbiting scroll wall is provided with a first tip seal arrangement for sealing between the orbiting scroll wall and the fixed scroll base plate and said tip face of the fixed scroll wall is provided with a second tip seal arrangement for sealing between the fixed scroll wall and the orbiting scroll plate, andat least one of said first and second tip seal arrangements comprises a plurality of seal segments disposed contiguously end to end on the respective said tip face.2. The scroll pump as claimed in claim 1 , wherein said seal segments each comprise planar end faces and are arranged such that respective opposed said end faces of adjacent said seal segments are in abutting relationship.3. The scroll pump as claimed in claim 1 , wherein said seal segments each comprise end faces and are arranged such that respective opposed said end faces of adjacent said seal segments are disposed in overlapping relationship.4. The scroll pump as claimed in claim 3 , wherein said overlapping ...

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Номер записи: 22
13-02-2020 дата публикации

COMPRESSOR

Номер: US20200049149A1
Автор: Enomoto Hiroshi, MIYAZAWA Kanetaka
Принадлежит:

Corrosion due to salt water, or the like, is prevented or suppressed between fastening end portions of housing members, while minimizing increase in production cost with respect to corrosion. A housing of a compressor has a front housing a center housing and a rear housing The front housing and the center housing are fastened to each other by a plurality of fastening members and mutual fastening end portions ( and ) thereof are welded together. The center housing and the rear housing are fastened to each other by a plurality of fastening members and mutual fastening end portions ( and ) thereof are welded together. A weld bead W is formed between the fastening end portion and the fastening end portion and a weld bead W is formed between the fastening end portion and the fastening end portion 1. A compressor comprising:a housing made of an aluminum alloy; anda compression mechanism accommodated in the housing,wherein the housing has a first housing member and a second housing member which are fastened to each other by a plurality of fastening members and fastening end portions of which are welded to each other, with a weld bead being formed between the fastening end portion of the first housing member and the fastening end portion of the second housing member.2. The compressor according to claim 1 , wherein blow holes are dispersed within the weld bead over an outer peripheral direction of the housing.3. The compressor according to claim 1 , wherein the weld beads are formed in portions excluding the regions which corresponds to the plurality of fastening members in an annular region between the fastening end portion of the first housing member and the fastening end portion of the second housing member.4. The compressor according to claim 1 , wherein the first housing member and the second housing member are welded to each other from a housing outer surface side in a state in which the end surfaces of the respective fastening end portions of the first housing member ...

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Номер записи: 23
26-02-2015 дата публикации

Composition for Sliding Member

Номер: US20150057199A1
Автор: Masaki Tahara, Yujiro YAMASAKI
Принадлежит: Nok Klueber Co Ltd

A composition for sliding member includes a binder resin, a solid lubricant, and an epoxy modified silicone oil having an epoxy group at both ends or at one end thereof. A weight ratio of the binder resin and the epoxy modified silicone oil is 97:3 to 75:25.

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Номер записи: 24
03-03-2016 дата публикации

Lubricating coating composition and compressor including the same

Номер: US20160060564A1
Автор: Eun Gi Son, Jae Hyun Hur, Jae Wook Joo, Joon Hee Moon, Kye Young Lee, Seung Yong Hwang
Принадлежит: Hanon Systems Corp

A lubricating coating composition and a compressor including a sliding member coated with the lubricating coating composition. The lubricating coating composition includes a thermosetting or thermoplastic polyimide-based resin as a binder, a solid lubricant, various solvents, and other additives at a controlled ratio. The compressor includes a first member including a first sliding surface and a second member moving relative to the first member including a second sliding surface. The lubricating coating composition is applied to the first sliding surface or the second sliding surface.

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Номер записи: 25
28-02-2019 дата публикации

Piston for internal combustion engine

Номер: US20190063604A1
Автор: Chiaki TARESAWA, Kunihiko Kobayashi, Naoki Yamakawa, Nobuyuki Fujiwara
Принадлежит: Art Metal Manufacturing Co Ltd

A piston in which a solid lubricant resin layer made of a resin containing a solid lubricant is formed at a skirt portion. A guide groove absent area where no guide groove is formed, which is provided in a predetermined range of the solid lubricant resin layer at a center portion in a width direction. The guide grooves directing from the both ends in the width direction of the guide groove absent area to both ends in the width direction of the skirt portion. The end portions of the guide grooves extended to end edges of the solid lubricant resin layer to form open ends. The solid lubricant resin layer and the guide grooves are formed at least at a thrust side skirt portion. The guide grooves are formed in a shape inclined upward from the guide groove absent area toward the end edges of the solid lubricant resin layer.

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Номер записи: 26
27-02-2020 дата публикации

POLYMERIC AND METAL CYLINDER HEAD AND METHOD OF MAKING THE SAME

Номер: US20200063690A1
Автор: ANDRUSKIEWICZ, Coppola Anthony M., IV Peter P., Kia Hamid G., Najt Paul M.
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A cylinder head assembly for an engine assembly is provided herein. The cylinder head assembly may include a head framework, an exhaust liner include a thermal barrier material, an intake liner, and a polymeric housing disposed around at least a portion of the metal head framework and the exhaust liner. The cylinder head assembly may further include a plurality of channels for heating and/or cooling the cylinder head assembly, which can be defined in one or more of: the metal head framework, the exhaust liner, and the polymeric housing. Methods of making the cylinder head assembly are also provided herein. 1. A cylinder head assembly for an engine comprising:a metal head framework defining a portion of: a combustion chamber, an intake valve guide, and an exhaust valve guide;an exhaust liner defining an exhaust port, wherein the exhaust liner comprises a thermal barrier material comprising an insulating layer, and wherein at least a portion of the exhaust liner is disposed adjacent to at least a portion of the metal head framework;an intake liner defining an intake port, wherein the intake liner comprises a material selected from the group consisting of a metal material, a polymeric material, the thermal barrier material, and combinations thereof;a polymeric housing disposed around at least a portion of the metal head framework and the exhaust liner; anda plurality of channels defined in one or more of:(i) the metal head framework;(ii) the exhaust liner; and(iii) the polymeric housing.2. The cylinder head assembly of claim 1 , wherein the polymer in the polymeric housing and the polymeric material each comprise a thermoplastic polymer or a thermoset polymer.3. The cylinder head assembly of claim 1 , wherein the polymeric housing and the polymeric material each further comprise a plurality of reinforcing fibers claim 1 , wherein the plurality of reinforcing fibers are selected from the group consisting of carbon fibers claim 1 , glass fibers claim 1 , aramid fibers ...

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Номер записи: 27
09-03-2017 дата публикации

SCROLL COMPRESSOR

Номер: US20170067466A1
Автор: Choi Seheon, Lee Byeongchul, LEE Jaeha, OH Junchul
Принадлежит:

A scroll compressor is provided that may include a casing having a sealed inner space; a drive motor provided in the inner space of the casing to generate a rotational force; a rotational shaft rotatably coupled to the drive motor; an orbiting scroll formed of an aluminum material, and coupled to the rotational shaft to perform an orbiting movement; a fixed scroll coupled to the orbiting scroll to form a compression space; and an Oldham ring coupled to the orbiting scroll, and formed of a sintered metal. With this structure, it may be possible to prevent the Oldham ring from being worn out due to contact with the orbiting scroll. Further, a weight loss portion or wear-resistant coating layer may be formed on a portion of the Oldham ring, thereby suppressing or preventing vibration noise of the scroll compressor from being increased due to a weight increase of the Oldham ring. 1. A scroll compressor , comprising:a casing having a sealed inner space;a drive motor provided in the inner space of the casing to generate a rotational force;a rotational shaft rotatably coupled to the drive motor;an orbiting scroll formed of an aluminum material, and coupled to the rotational shaft to perform an orbiting movement;a fixed scroll coupled to the orbiting scroll to form a compression space; andan Oldham ring coupled to the orbiting scroll, and formed of a sintered metal.2. The scroll compressor of claim 1 , wherein the Oldham ring includes:a ring; anda plurality of keys formed in a protruding manner on at least one of axial-direction lateral surfaces of the ring to allow the Oldham ring to be slidably coupled in a radial direction to key grooves of the orbiting scroll, wherein the ring is formed with a stepped surface on at least one of the axial-direction lateral surfaces.3. The scroll compressor of claim 1 , wherein the Oldham ring includes:a ring; anda plurality of keys formed in a protruding manner on at least one of axial-direction lateral surfaces of the ring to allow the ...

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Номер записи: 28
11-03-2021 дата публикации

THERMAL BARRIER COATINGS FOR INTERNAL COMBUSTION ENGINES

Номер: US20210071571A1
Автор: Jiang Chen, Jordan Eric, Kumar Rishi, Nair Balakrishnan
Принадлежит: THE UNIVERSITY OF CONNECTICUT

A thermal barrier coating for an internal combustion engine includes an insulating thermal spray coating, where a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form and the chosen material includes a coefficient of thermal expansion within 5 ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed. 1. A thermal barrier coating for an internal combustion engine , comprising:an insulating thermal spray coating, wherein:a chosen material of the insulating thermal spray coating has a thermal conductivity lower than 2 W/mK in fully dense form; andthe chosen material includes a coefficient of thermal expansion within 5 ppm/K of a coefficient of thermal expansion of a material of a component of the internal combustion engine upon which the coating is placed.2. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises a perovskite material.3. The thermal barrier coating of claim 2 , wherein the perovskite material is of the ABOcategory claim 2 , where A and B are cations.4. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum molybdate (LaMoO).5. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum molybdate (LaMoO) with at least one dopant claim 1 , wherein the dopant is one of Bi claim 1 , Ni claim 1 , Rb claim 1 , Y claim 1 , Gd claim 1 , Nd claim 1 , Ba claim 1 , Sr claim 1 , Ca.6. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises gadolinium zirconate (GdZrO).7. The thermal barrier coating of claim 1 , wherein the insulating thermal spray coating comprises lanthanum strontium cobalt ferrites claim 1 , of the type LaSrCoFeOoxides.8. The thermal barrier coating of claim 7 , wherein the x=0.4.9. The thermal barrier coating of claim 1 , ...

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Номер записи: 29
19-03-2015 дата публикации

Pressure differential pumps

Номер: US20150078919A1
Автор: Christina ORTOLAN, Kevin Huang, Nguyen Tram, Razmik Boodaghians, Shane Nazari, Sung Hong
Принадлежит: MAG Aerospace Industries LLC

Embodiments of the present disclosure relate generally to pumps and systems that use a differential pressure gradient to transfer fluids. In one example, the pumps may use available differential pressure that exists due to outside pressure and cabin pressure due to altitude on-board a vehicle such as an aircraft.

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Номер записи: 30
23-03-2017 дата публикации

PUMP PROVIDED WITH A SYSTEM FOR COMPENSATING THE INTERNAL PRESSURE

Номер: US20170082105A1
Автор: ANDREIS Diego
Принадлежит:

The present document describes a pump () comprising a casing () that encloses a pumping group (). On the casing () at least one inlet conduit for inletting a fluid (F) and at least one outlet conduit for outletting the fluid (F) are obtained. The pumping group () comprises a pair of mutually coupled gears, each mounted on a respective support shaft. The relative movement of a first gear with respect to the second gear defines a pumping chamber having variable volume inside the pumping group (), so as to suck the fluid (F) from the suction conduit to expel it through the delivery conduit. A first support shaft () is operatively connected to an actuator assembly () so that the first gear can operate as a driving gear to set the second gear in rotation. The pump () comprises at least one element () for compensating the increase in volume of the fluid (F) and/or the increase in the pressures inside such a pump (). The element () for compensating the pressure/volume is at least partially manufactured from a shape memory metal alloy having superelastic properties. 110121412141416181020101020. Pump () comprising a casing () enclosing a pumping group () , at least one inlet conduit for inletting a fluid (F) and at least one outlet conduit for outletting said fluid (F) being obtained on said casing () , said pumping group () comprising a pair of mutually coupled gears , each mounted on a respective support shaft , wherein the relative movement of a first gear with respect to the second gear defines a pumping chamber having variable volume inside the pumping group () , so as to suck the fluid (F) from the suction conduit and to eject it through the delivery conduit , a first support shaft () being operatively connected to an actuator assembly () so that the first gear can operate as driving gear to set the second gear in rotation , the pump () comprising at least one element () for compensating the increase in volume of the fluid (F) and/or the increase in the pressures ...

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Номер записи: 31
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: 32
31-03-2022 дата публикации

Compressor including laser-hardened bearing surfaces

Номер: US20220099091A1
Автор: Christopher A. Wehrenberg, William E. LAPP
Принадлежит: Trane International Inc

This disclosure is directed to compressors with hardened bearing surfaces, particularly laser-hardened bearing surfaces. Laser hardening can be used to precisely harden selected areas of the bearing surfaces of the compressor components. By hardening those selected areas, wear resistance can be improved and sliding wear can be reduced. This can result in thrust plates having different material structures configured to contact one another, such as one having a primarily pearlitic microstructure with the opposing thrust plate having a primarily martensitic microstructure. This can reduce adhesive wear by providing dissimilarity on the wearing surfaces.

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Номер записи: 33
25-03-2021 дата публикации

METHOD FOR PRODUCING A WATER-HYDRAULIC MACHINE

Номер: US20210088037A1
Автор: Andersen Stig Kildegaard, Enevoldsen Georg, Iversen Frank Holm
Принадлежит:

A method for producing a water-hydraulic machine having a first member () and a second member () in sliding contact with a contact surface () of the first member (), wherein the second member () comprises a surface made of a friction reducing plastic material and the contact surface () is a metallic surface, is disclosed. The machine should have a low risk of damages. To this end, the method includes the steps of using a first member () comprising a first part () having the contact surface () and a second part (), using a high temperature hardening process at a temperature of at least 1000° C. to give a deep surface hardening of the contact surface () of the first part (), machining of the first part () to the desired geometry, assembling the first part () and the second part () to form the first member. 1. A method for producing a water-hydraulic machine having a first member and a second member in sliding contact with a contact surface of the first member , wherein the second member comprises a surface made of a friction reducing plastic material and the contact surface is a metallic surface , characterized in that the method comprises the steps of:using a first member comprising a first part having the contact surface and a second part ,using a high temperature hardening process at a temperature of at least 1000° C. to give a deep surface hardening of the contact surface of the first partmachining of the first part to the desired geometryassembling the first part and the second part to form the first member.2. The method according to claim 1 , wherein the high temperature hardening process is carried out in the presence of nitrogen.3. The method according to claim 1 , characterized in that wherein a low temperature hardening process at a temperature of 550° C. or lower is used to give a final super hard contact surface of the first part.4. The method according to claim 1 , wherein at least the contact surface is polished.5. The method according to claim 1 , ...

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Номер записи: 34
28-03-2019 дата публикации

MULTI-LAYERED PISTON CROWN FOR OPPOSED-PISTON ENGINES

Номер: US20190093597A1
Автор: MacKenzie Ryan G., Wagner Bryant A.
Принадлежит: Achates Power, Inc.

A piston crown for a piston of a pair of pistons in a two-stroke, opposed-piston, compression ignition combustion engine has a barrier layer and a conductive layer. The barrier layer at least partially surrounds a combustion chamber formed by the piston crown and an end surface of an opposing piston. The conductive layer connects the crown to the rest of the piston body. The barrier layer and the conductive layer are joined either through welding or through the fabrication process. Optionally, the piston crown includes an insulating layer between the barrier and conductive layers. 1. An internal combustion engine including at least one cylinder with longitudinally-separated exhaust and intake ports and a pair of pistons disposed in opposition to one another in a bore of the cylinder , each piston including:a piston body with a crown at one end; andan end surface on the crown, in which an end surface of a first piston has a bowl that cooperates with the end surface of an opposing piston to define a combustion chamber, a barrier layer located in the end surface such that the combustion chamber is enclosed at least in part by the barrier layer;', 'an insulating layer; and', 'a conductive layer located adjacent to the barrier layer, the conductive layer connecting the crown to the piston body by welding above piston ring grooves,, 'the crown comprising the insulating layer is between the barrier layer and the conductive layer,', 'the barrier layer and the conductive layer each have a bowl, a pair of notches, and a sidewall portion, and', 'the insulating layer does not have a sidewall and has a circumference that fits within the sidewall of the barrier layer., 'in which2. The internal combustion engine of claim 1 , further comprising claim 1 , in each piston at least one void between the barrier layer and the conductive layer of the crown.3. The internal combustion engine of either or claim 1 , wherein the insulating layer has a thermal conductivity of 2 W/m·° C. or less ...

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Номер записи: 35
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: 36
13-05-2021 дата публикации

Rotating heating chamber apparatus and method of use thereof

Номер: US20210140317A1
Автор: Merton W. Pekrul
Принадлежит: Individual

The invention comprises a method for heating a fluid in an engine, including: a rotor rotating relative to a stator about a shaft and a set of vanes extending radially outward, relative to an elongated axis of the shaft, between the rotator and the stator, the set of vanes separating a set of expansion chambers, where the method comprises the steps of: (1) applying a shear force to the fluid to form a gas with a rotatable chamber within the shaft of the engine; and (2) exhausting the gas from the shaft to a rotor-vane chamber, the rotor-vane chamber comprising a void in a vane slot on a shaft side of a first vane, of the set of vanes. Optionally, the gas applies a rotation force by passing the gas from the first vane to a trailing expansion chamber of the set of expansion chambers.

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Номер записи: 37
21-05-2015 дата публикации

PROGRESSIVE CAVITY PUMP

Номер: US20150139842A1
Автор: Bratu Christian
Принадлежит:

A progressive cavity pump comprising a casing, a helical stator including a helical cylinder and a helical rotor capable of rotating inside said helical cylinder. The helical stator also comprises at least one compensator arranged in said casing, between the casing and said helical cylinder; said helical cylinder and said compensator being deformable in a direction perpendicular to the longitudinal axis of the casing. 1. A progressive cavity pump comprising:a cylindrical casing having a longitudinal axis, said casing being provided with an inlet opening at one end and with an outlet opening at its opposite end,a helical stator contained within said casing, said helical stator comprising a helical cylinder having a central axis coinciding with the longitudinal axis of said casing;a helical rotor suitable for rotating inside said helical cylinder so as to move a fluid from the inlet opening toward the outlet opening,wherein said helical stator further comprises at least one compensator arranged within said casing, between the casing and said helical cylinder, said helical cylinder and said compensator being adapted to deform in a direction perpendicular to said longitudinal axis.3. The progressive cavity pump according to claim 1 , wherein said at least one compensator has a closed profile.4. The progressive cavity pump according to claim 1 , wherein said at least one compensator has an elliptical cross-section.5. The progressive cavity pump according to claim 1 , wherein said at least one compensator has an open profile.6. The progressive cavity pump according to claim 1 , wherein said at least one compensator is arranged on a concave portion of said helical cylinder.7. The progressive cavity pump according to claim 1 , wherein said at least one compensator is arranged on a convex portion of said helical cylinder.8. The progressive cavity pump according to claim 1 , wherein said helical stator comprises a plurality of compensators evenly distributed along the casing. ...

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Номер записи: 38
17-05-2018 дата публикации

ROTARY VANE ACTUATOR AND VANE ASSEMBLY

Номер: US20180135623A1
Автор: Chapman Roger Charles
Принадлежит:

A vane assembly for use in a rotary vane actuator, the vane assembly comprising: a rotatable vane having a first side and a second side; a vane axle connected to the rotatable vane for converting pressure exerted on the rotatable vane into rotational motion; a vane seal on the first side of the rotatable vane, the vane seal being for sealing the rotatable vane; and a side-plate on the first side of the rotatable vane, the side-plate clamping the vane seal in position; wherein the side-plate comprises: an outer part providing an outer surface of the side-plate, the outer part defining an internal volume; and an inner part filling or substantially filling the internal volume defined by the outer part, the inner part being distinct from the outer part. 1. A rotary vane actuator having a housing and a vane assembly , wherein:the housing has a cavity accommodating the vane assembly, the vane assembly dividing the cavity into a first chamber and a second chamber; andthe vane assembly comprises:a rotatable vane having a first side and a second side;a vane axle projecting from the housing and being connected to the rotatable vane to convert pressure exerted on the rotatable vane into rotational motion;a vane seal on the first side of the rotatable vane, the vane seal providing a seal between the rotatable vane and the housing; anda side-plate on the first side of the rotatable vane, the side-plate clamping the vane seal in position;wherein the side-plate comprises:an outer part providing an outer surface of the side-plate, the outer part defining an internal volume; andan inner part filling or substantially filling the internal volume defined by the outer part, the inner part being distinct from the outer part.2. The rotary vane actuator according to claim 1 , wherein the internal volume defined by the outer part is a space in the outer part.3. The rotary vane actuator according to claim 2 , wherein the outer part is a hollow shell.4. The rotary vane actuator according to ...

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Номер записи: 39
16-05-2019 дата публикации

VALVE SEAT RING

Номер: US20190143415A1
Автор: Blecking Christian, Emde Dirk, Hammelmann Robert, Hunsche Ingwar, Kohler Ekkehard, Seyfarth Anna
Принадлежит: Bleistahl-Produktions GmbH &Co KG

The invention relates to a highly heat conductive valve seat ring () comprising a carrier layer () and a functional layer (), wherein the carrier layer () consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying component s and the functional layer (3) consists of a solidified copper matrix which further contains, based on the copper matrix, 5 to 35% w/w of one or more hard phases. 112323. Valve seat ring () comprising a carrier layer () and a functional layer () , characterized in that the carrier layer () consists of a solidified copper matrix containing 0.10 to 20% w/w of a solidifying/strengthening component and the functional layer () consists of a solidified copper matrix which further contains , based on the copper matrix , 5 to 35% w/w of one or more hard phases.2. Valve seat ring according to claim 1 , characterized in that the solidifying component of the copper matrix is an oxide claim 1 , in particular AlOor YO.3. Valve seat ring according to claim 1 , characterized in that the solidifying component of the copper matrix is an intermetallic phase claim 1 , in particular containing Cu claim 1 , Cr claim 1 , Zr claim 1 , Nb claim 1 , Ni and/or Si.4. Valve seat ring according to claim 1 , characterized in that the solidifying component is AlOor CrNb.5. Valve seat ring according to claim 1 , characterized in that the hard phase of the functional layer is a hard phase based on iron claim 1 , cobalt claim 1 , nickel claim 1 , a carbide claim 1 , oxide and/or nitride.6. Valve seat ring according to claim 5 , characterized in that the hard phase is a hard phase based on iron claim 5 , nickel or cobalt.7. Valve seat ring according to claim 1 , characterized in that the functional layer contains 0.1 to 5% w/w of a solid lubricant.8. Valve seat ring according to claim 7 , characterized in that the solid lubricant is MnS claim 7 , MoS claim 7 , WS claim 7 , CaFor hexagonal BN.9232. Valve seat ring according to claim 1 , characterized in that ...

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Номер записи: 40
07-05-2020 дата публикации

Lattice-cored additive manufactured compressor components with fluid delivery features

Номер: US20200141399A1
Автор: Marc J. Scancarello, Robert C. Stover
Принадлежит: Emerson Climate Technologies Inc

A light-weight, high-strength compressor component having at least one fluid delivery feature that is formed via additive manufacturing is provided. The component may have at least one interior region comprising a lattice structure that comprises a plurality of repeating cells. A solid surface is disposed over the lattice structure. The interior region comprising the lattice structure has at least one fluid delivery feature for permitting fluid flow through the body portion of the light-weight, high-strength compressor component. The fluid delivery feature may be a flow channel, a fluid delivery port, a porous fluid delivery feature, or the like that serves to transfer fluids through the component, such as refrigerant and/or lubricant oils. Methods of making such compressor components via additive manufacturing processes are also provided.

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Номер записи: 41
18-06-2015 дата публикации

Systems and methods for determining mechanical stress of a compressor

Номер: US20150167662A1
Автор: Charles Terrance Hatch, Lam Arthur CAMPBELL, Pekka Tapani SIPILA
Принадлежит: General Electric Co

A system for determining mechanical stress of a compressor is provided. The system includes a reciprocating compressor. The system also includes a magnetostriction sensor coupled to the reciprocating compressor and configured to measure a change in magnetic permeability of a target material of the reciprocating compressor. Furthermore, the system includes a processor configured to convert the measured change in the magnetic permeability of the target material into an estimated mechanical stress under which the target material is exposed.

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Номер записи: 42
24-06-2021 дата публикации

Shape Memory Alloy Actuators And Methods Thereof

Номер: US20210190046A1
Автор: Ruzicka Ryan N., Sakamoto Yasushi
Принадлежит:

SMA actuators and related methods are described. One embodiment of an actuator includes a base; a plurality of buckle arms; and at least a first shape memory alloy wire coupled with a pair of buckle arms of the plurality of buckle arms. Another embodiment of an actuator includes a base and at least one bimorph actuator including a shape memory alloy material. The bimorph actuator attached to the base. 1. An actuator comprising:a beam portion;a fixed end; anda load point end, the beam portion disposed between the fixed end and the load point end,the load point end including a flat surface including a resistance weld region configured to affix SMA material.2. The actuator of comprising SMA material affixed to the fixed end and the load point end.3. The actuator of claim 2 , wherein the load point end includes a distal aperture and a proximal aperture separated by the resistance weld region.4. The actuator of claim 2 , wherein the load point end includes an elongated aperture corresponding to a section of the SMA material.5. The actuator of claim 2 , wherein the load point end includes a distal aperture and a proximal aperture separated by the resistance weld region claim 2 , an elongated aperture corresponding to a section of the SMA material claim 2 , the elongated aperture extending from the distal aperture.6. The actuator of claim 1 , wherein the load point end includes a non-linear aperture defining the resistance weld region.7. The actuator of claim 6 , wherein the resistance weld region is fully etched from the load point end.8. The actuator of claim 6 , wherein the resistance weld region is partially etched by the non-linear aperture.9. The actuator of claim 1 , wherein the load point end further including at least one radiant surface area extending out from the resistance weld region.10. An actuator comprising:a beam portion;a fixed end;a load point end, the beam portion disposed between the fixed end and the load point end; and 'a flat surface including a ...

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Номер записи: 43
14-06-2018 дата публикации

ROTORY ENGINE WITH ROTOR LAND

Номер: US20180163541A1
Автор: GAGNON-MARTIN David, OUELLET Gilbert, VILLENEUVE Bruno
Принадлежит:

A rotary internal combustion engine with a rotor body made at least in major part of a first material, with at least the contact surface of the rotor lands including a second material having a greater wear resistance than that of the first material with respect to frictional engagement with the portion of the inner surface of the internal cavity contacting the at least one land. For at least one of the end faces, the land(s) include(s) the first material and the contact surface is defined by a surface layer of the second material on the first material. A method of axially positioning a rotor of a rotary engine within an internal cavity of an outer body of the engine are also discussed. 1. A rotary internal combustion engine comprising:an outer body enclosing an internal cavity, the outer body rotationally receiving a shaft extending through the internal cavity;a rotor body received in the internal cavity and made at least in major part of a first material, the rotor body having two axially spaced apart end faces each extending in proximity of a respective inner surface of the internal cavity, and a peripheral face extending between the end faces, the rotor body being engaged to an eccentric member of the shaft to rotate within the cavity in sealed engagement with walls defining the cavity, the rotor body including at least one land protruding axially from each of the end faces and defining a contact surface extending at a fixed position with respect to the end faces, the contact surface frictionally engaging a portion of the inner surface of the internal cavity, at least the contact surface including a second material;wherein for at least one of the end faces, the at least one land includes the first material and the contact surface is defined by a surface layer of the second material on the first material;wherein the second material has a greater wear resistance than that of the first material with respect to frictional engagement with the portion of the inner ...

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Номер записи: 44
15-06-2017 дата публикации

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

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

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

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Номер записи: 45
29-09-2022 дата публикации

Overstress protection for shape memory alloy seat actuator

Номер: US20220307485A1
Автор: Brian J. Pinkelman, Mark A. Gummin, Ryohei Tsuruta, Umesh N. Gandhi
Принадлежит: Miga Technologies LLC, Toyota Motor Engineering and Manufacturing North America Inc

An actuator for a vehicle seat can be configured to prevent overstress of a shape memory alloy (SMA) wire. The actuator can include a first body member and a second body member pivotably connected to each other. The actuator can include an overstress post and an overstress contact plate operatively connected to the overstress post. Thus, movement of the overstress post causes movement of the overstress contact plate. The actuator can include an overstress contact pin. The actuator can include an SMA wire operatively connected to one of the body members and to the overstress post. When activated, the SMA wire can shrink, causing one of the body members to pivot relative to the other body member and causing the overstress contact plate to move toward the overstress contact pin. If the overstress contact plate contacts the overstress contact pin, the SMA wire can be deactivated.

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Номер записи: 46
21-05-2020 дата публикации

Spark-ignited internal combustion engine

Номер: US20200158045A1
Автор: Shintaro Hotta
Принадлежит: Toyota Motor Corp

A top surface of the piston includes a first region. A heat shielding film is formed on the first area. The top surface further includes a second region. There is no heat shielding film formed on the second region. Instead, the second area is mirror-finished. The top surface includes a central portion. A valve recess portion is formed on an intake side of the central portion. A squish portion is formed the intake side of the valve recess portion. The first area includes at least the central portion. The second area includes at least the squish portion.

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Номер записи: 47
28-05-2020 дата публикации

THERMAL BARRIER CYLINDER LINER INSERT

Номер: US20200166001A1
Автор: Aumiller Markus, Jenness Blair Matthew
Принадлежит:

An insert for a cylinder liner which is capable of trapping heat in the combustion chamber is provided. The insert extends circumferentially around a center axis and longitudinally from an upper end to a lower end. The insert includes an inner portion presenting an inner surface facing the center axis and an outer portion presenting an outer surface facing away from the center axis. The inner portion is formed of an iron-based material, such as steel, and the outer portion is formed of a material having a thermal conductivity of not greater than 3.5 W/mK, for example ceria stabilized zirconia. The inner and outer portions each present a thickness, and the thickness can form a gradient between the upper end and the lower end of the insert. For example, the thickness of the outer portion can be greater at the upper end than at the lower end of the insert. 1. An insert for a cylinder liner of an internal combustion engine ,an insert body extending circumferentially around a center axis and longitudinally from an upper end to a lower end,said insert body including an inner portion presenting an inner surface facing said center axis, said inner surface presenting an opening,said insert body including an outer portion presenting an outer surface facing away from said center axis, andsaid inner portion being formed of an iron-based material and said outer portion being formed of a material having a thermal conductivity of not greater than 3.5 W/mK.2. An insert for a cylinder liner according to claim 1 , wherein said inner portion is formed of steel.3. An insert for a cylinder liner according to claim 1 , wherein said outer portion is formed of a material including zirconia and/or ceria.4. An insert for a cylinder liner according to claim 1 , wherein said outer portion is formed of ceria stabilized zirconia.5. An insert for a cylinder liner according to claim 1 , wherein said inner portion and said outer portion each present a thickness claim 1 , and the thickness of said ...

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Номер записи: 48
28-05-2020 дата публикации

COMPRESSOR IMPELLER

Номер: US20200166052A1
Автор: FUJITA Yutaka, Yokoyama Takao
Принадлежит: MITSUBISHI HEAVY INDUSTRIES ENGINE & TURBOCHARGER, LTD.

A compressor impeller includes: a compressor impeller body portion including a boss portion and a plurality of vane portions disposed at intervals in a circumferential direction on a peripheral surface of the boss portion; and a heat shield portion disposed on a side of a back surface of the boss portion and configured to rotate with the compressor impeller body portion 119-. (canceled)20. A compressor impeller , comprising:a compressor impeller body portion including a boss portion and a plurality of vane portions disposed at intervals in a circumferential direction on a peripheral surface of the boss portion; anda heat shield portion disposed on a side of a back surface of the boss portion and configured to rotate with the compressor impeller body portion,wherein the heat shield portion is formed integrally with the compressor impeller body portion from an identical material, andwherein a slit is disposed between the heat shield portion and the boss portion.21. The compressor impeller according to claim 20 ,the heat shield portion is formed to have an annular shape.22. The compressor impeller according to claim 21 ,wherein a distance between a radially outer end of the heat shield portion and a rotational axis of the compressor impeller is not smaller than a half of a distance between a radially outer end of the back surface of the boss portion and the rotational axis of the compressor impeller.23. The compressor impeller according to claim 21 ,wherein a radially outer end of the heat shield portion is positioned on an inner side of a radially outer end of the back surface of the boss portion in a radial direction of the compressor impeller.24. The compressor impeller according to claim 21 ,wherein the heat shield portion is disposed so as to face the back surface of the boss portion via a gap, andwherein the heat shield portion includes a curved portion curved so as to become closer to the back surface of the boss portion outward in a radial direction of the ...

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Номер записи: 49
09-07-2015 дата публикации

Hydraulic tools including inserts and related methods

Номер: US20150192123A1
Автор: Carsten HOHL, Dirk Froehlich, Joerg Lehr
Принадлежит: Baker Hughes Inc

A hydraulic tool includes a stator and a rotor rotatably disposed within the stator. At least one of at least an inner portion of the stator and at least an outer portion of the rotor includes an insert comprising a hard material. A method of forming a hydraulic tool includes attaching at least one insert comprising a hard material to a surface of a stator or a surface of a rotor. A downhole motor or pump includes a stator and a rotor. The stator includes at least one insert comprising a hard material disposed over at least a portion of an interior surface thereof and a matrix material at least partially surrounding the at least one insert. The rotor includes at least one insert disposed over at least a portion of an exterior surface thereof and a matrix material at least partially surrounding the at least one insert.

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Номер записи: 50
05-07-2018 дата публикации

Metallic microsphere thermal barrier coating

Номер: US20180186144A1
Автор: Gary P. Hill, Paul M. Najt, Peter P. Andruskiewicz, IV, Russell P. Durrett, Shanying Cui, Tobias A. Schaedler
Принадлежит: GM GLOBAL TECHNOLOGY OPERATIONS LLC

A metallic thermal barrier coating for a component includes an insulating layer having a plurality of metallic microspheres applied to a substrate. A second metallic non-permeable layer is bonded to the insulating layer such that the sealing layer seals against the insulating layer. A method for applying a thermal barrier coating to a component includes placing an insulating layer having a plurality of microspheres to a surface of the substrate of the component. A heat treatment is applied to the insulating layer. A second non-permeable layer is bonded to and seals against the insulating layer.

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Номер записи: 51
05-07-2018 дата публикации

SMA BUNDLE WIRE OPTIMISATION IN AN ENERGY RECOVERY DEVICE

Номер: US20180187659A1
Автор: "OTOOLE Kevin", BLACKBURN Richard, CULLEN Barry
Принадлежит:

The invention provides an energy recovery device comprising a plurality of Shape Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged as a plurality of wires positioned substantially parallel with each other to define a core wherein the wires are selected to have different dimensions such that the plurality of wires are activated at substantially the same time in response to a temperature change. 1. An energy recovery device comprising a plurality of Shape-Memory Alloy (SMAs) or Negative Thermal Expansion (NTE) elements arranged as a plurality of wires positioned substantially parallel with each other to define a core characterised in that the wires are selected to have different dimensions and the plurality of wires are activated at substantially the same time in response to a temperature change such that the wires positioned towards the centre of the core have a smaller diameter than wires positioned near the outside of the core.2. The energy recovery device as claimed in wherein the wire diameters are selected to match the characteristics of a fluid flow at any point in the core and take account of the impact of the flow with other wires and the loss in energy of the flow as it penetrates the bundle claim 1 , and an even activation time can be achieved for the plurality of wires.3. The energy recovery device as claimed in wherein at least one of the wires is tapered at one end.4. The energy recovery device as claimed in wherein activation of at least one wire comprises a transformation from a martensite to an austenite state.5. A core for use in an energy recovery device claim 1 , said core comprising a plurality of wires positioned substantially parallel with each other and wherein the wires are selected to have different dimensions and the plurality of wires are activated at substantially the same time in response to a temperature change and the wires positioned towards the centre of the core have a smaller diameter than wires positioned ...

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Номер записи: 52
05-07-2018 дата публикации

AUSTEMPERED GREY IRON SCROLL AND METHOD OF MAKING THEREOF

Номер: US20180187678A1
Автор: Hansen George
Принадлежит:

A scroll compressor includes scroll members that are made of austempered grey iron in whole or in part. The austempering process can increases fatigue strength and toughness of a grey iron while maintaining its good machinability and vibration damping characteristics. Use of austempered grey iron scroll members allows the scroll compressor to improve its capacity, efficiency, and durability. 1. A scroll compressor , comprising:a fixed austempered grey iron scroll member;an orbiting austempered grey iron scroll member;a motor connecting and driving a drive shaft;a crank pin connecting the drive shaft to the orbiting austempered grey iron scroll member through a bearing;a discharge port in fluid communication with the fixed austempered grey iron scroll member; anda shell hermetically sealing the scroll compressor,wherein each of the fixed austempered grey iron scroll member and the orbiting austempered grey iron scroll member includes an austempered grey iron wrap,the orbiting austempered grey iron scroll member is constrained to orbit relative to a fixed austempered grey iron scroll member,rotation of the drive shaft and the crank pin draws the orbiting austempered grey iron scroll member around in an orbital path, andorbiting motion of the orbiting austempered grey iron scroll member relative to the fixed austempered grey iron scroll member creates pockets to compress the refrigerant.2. The scroll compressor of claim 1 , wherein the austempered grey iron wrap has about 56 ksi tensile strength.3. The scroll compressor of claim 1 , wherein the austempered grey iron wrap has about 5 ft-lbs of impact strength.4. The scroll compressor of claim 1 , wherein the austempered grey iron wrap has about 0.8% elongation.5. The scroll compressor of claim 1 , wherein the austempered grey iron wrap has about 282 Brinell hardness for suitable machinability.6. The scroll compressor of claim 1 , wherein the austempered grey iron wrap has a resonant frequency of about 29 claim 1 ,500 Hz ...

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Номер записи: 53
20-06-2019 дата публикации

Thermal barriers for engines and methods of making the same

Номер: US20190186355A1
Автор: Dana Craig Bookbinder, Irene Marjorie Slater, Pushkar Tandon, Richard Curwood Peterson, Roy Joseph Bourcier, Wlliam Edward Lock
Принадлежит: Corning Inc

A thermal barrier for component surfaces of an engine. The thermal barrier includes a plurality of modules, each module includes a shield. An edge of at least one shield in the array is spaced apart from an edge of an adjacent shield in the array.

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Номер записи: 54
11-06-2020 дата публикации

CYLINDER LINER HAVING VARIED THERMAL CONDUCTIVITY

Номер: US20200182187A1
Автор: Favaron Rodrigo
Принадлежит:

Provided is a cylinder liner having a first portion with a first thermal conductivity and a second portion with a second thermal conductivity. The first portion having the first thermal conductivity can include as-cast projections or a coating of a material, as desired. The first thermal conductivity can be greater than the second thermal conductivity. In this manner, the cylinder liner can exhibit a thermal conductivity gradient. 1. A cylinder liner having varied thermal conductivity comprising:a cylindrical body;an outer surface of the cylindrical body;a first portion on the outer surface of the cylindrical body, the first portion defining a first circumferential portion of the cylindrical body, the first circumferential portion including greater than half a height of the cylindrical body, the first portion having a first thermal conductivity; anda second portion on the outer surface of the cylindrical body, the second portion defining a second circumferential portion of the cylindrical body, the second portion having a second thermal conductivity, the first thermal conductivity being different from the second thermal conductivity.2. The cylinder liner of claim 1 , wherein the first thermal conductivity is greater than the second thermal conductivity3. The cylinder liner of claim 1 , wherein the first portion is adjacent a first end of the cylindrical body and the second portion is adjacent a second end of the cylindrical body.4. The cylinder liner of claim 1 , wherein the first portion includes a plurality of as-cast projections.5. The cylinder liner of claim 4 , wherein the plurality of as-cast projections includes projections having a first diameter adjacent to the surface of the cylinder liner claim 4 , a second diameter spaced apart from the first diameter and terminating at an end of the projection claim 4 , and a third diameter therebetween less than the first and the second diameters.6. The cylinder liner of claim 4 , wherein the plurality of as-cast ...

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Номер записи: 55
27-06-2019 дата публикации

SLIDING MEMBER AND METHOD FOR MANUFACTURING THE SAME

Номер: US20190195281A1
Автор: ADACHI Koshi, KISHI Kentaro, MIKI Shinya, NIIYAMA Yasunori
Принадлежит:

A sliding member includes: a base material; a solid lubricant layer arranged on a surface of the base material; a defect layer having a material defect, disposed in the solid lubricant layer, and being changeable into an ultra low friction layer by mechanical stress more easily than changing from the solid lubricant layer to the ultra low friction layer; and a ultra low friction layer covering a surface of the defect layer. 1. A sliding member comprising:a base material;a solid lubricant layer arranged on a surface of the base material;a defect layer having a material defect, disposed in the solid lubricant layer, and being changeable into an ultra low friction layer by mechanical stress more easily than changing from the solid lubricant layer to the ultra low friction layer; anda ultra low friction layer covering a surface of the defect layer.2. The sliding member according to claim 1 , wherein:the solid lubricant layer is defined as a hard carbon film in which carbon atoms are bonded; andthe defect layer is provided by a carbon bonding defect.3. The sliding member according to claim 2 , wherein:the solid lubricant layer is made of diamond-like carbon.4. The sliding member according to claim 3 , wherein:the defect layer has an ID/IG ratio equal to or more than 0.056 and a SD/SG ratio equal to or more than 0.048 in Raman spectroscopy.5. The sliding member according to claim 1 , wherein:the solid lubricant layer is made of chromium nitride, silicon nitride, or silicon carbide.6. The sliding member according to claim 1 , wherein:the sliding member has a functional group disposed on a surface of the defect layer.7. The sliding member according to claim 1 , wherein:the ultra low friction layer has a friction coefficient equal to or smaller than a predetermined friction coefficient.8. The sliding member according to claim 7 , wherein:the predetermined friction coefficient is 0.05.9. A method for manufacturing a sliding member comprising:preparing a base material;forming ...

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Номер записи: 56
19-07-2018 дата публикации

LUBRICATING COATING COMPOSITION AND COMPRESSOR INCLUDING THE SAME

Номер: US20180201869A1
Автор: Hur Jae Hyun, Hwang Seung Yong, JOO Jae Wook, Lee Kye Young, Moon Joon Hee, Son Eun Gi
Принадлежит:

A lubricating coating composition and a compressor including a sliding member coated with the lubricating coating composition. The lubricating coating composition includes a thermosetting or thermoplastic polyimide-based resin as a binder, a solid lubricant, various solvents, and other additives at a controlled ratio. The compressor includes a first member including a first sliding surface and a second member moving relative to the first member including a second sliding surface. The lubricating coating composition is applied to the first sliding surface or the second sliding surface. 1. A compressor comprising:a first sliding surface of a first member;a second sliding surface of a second member, the first sliding surface and the second sliding surface move relative to each other; and a polyimide-based resin;', 'a solid lubricant;', 'a filler;', 'a silane coupling agent; and', {'sub': 2', '3, 'a solvent, wherein based on a total weight of the lubricating coating composition, 10-24 wt % of the polyimide-based resin, 6-10 wt % of the solid lubricant, 1-2.5 wt % of the filler, 0.1-2.4 wt % of the silane coupling agent, and 60-80 wt % of the solvent, wherein the polyimide-based resin is polyamide imide, wherein the solid lubricant is polytetrafluoroethylene (PTFE), wherein the filler is alumina (AlO), and wherein the solvent is consisting of N-methyl-2-pyrrolidone (NMP), xylene, dimethylacetamide (DMAC), and methyl ethyl ketone (MEK), wherein the lubricating coating composition has a viscosity of 30-40 cP.'}], 'a lubricating coating composition coated on any one of the first sliding surface and the second sliding surface to form a lubricating layer, wherein the lubricating coating composition further comprises2. The compressor of claim 1 , wherein the polyimide-based resin and the solid lubricant are present at a weight ratio of 1.6:1 to 3:1.3. The compressor of claim 1 , wherein the polytetrafluoroethylene (PTFE) has an average particle diameter of 0.1-1 μm.4. The ...

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Номер записи: 57
26-07-2018 дата публикации

COMPOSITE COMPONENTS MADE OF HEAT-CURING RESINS AND ELASTOMERS

Номер: US20180208302A1
Автор: Plenk Florian, Schaube Jens, Zahn Judith
Принадлежит:

A plastic composite component which is formed by a thin hard plastic outer layer, at least one elastomer layer adjoining the former on the inside, and at least one metal and/or plastic carrier layer adjoining said elastomer layer on the inside and made of a fibre reinforced plastic (RFP). A carbon fibre reinforced plastic (CRP) or glass fibre reinforced plastic (GRP), is arranged on the component or at least partly forms the latter, as an impact protection part, as a splinter protection part, as a protective part against sudden total failure or as a protective part against vibrations and vibration damages, against resonance, for the purpose of damping oscillations or for the purpose of acoustic damping. 1. A synthetic material composite component , comprising the component formed of at least two layers , wherein a first layer formed of at least in part of a heat-curing synthetic resin and a second layer formed of at least in part of an elastomer are integrated by an energy input in a single processing procedure , and wherein the elastomer layer contains at least 0.5 pph (parts per hundred) of at least one cross-linking agent from the group of peroxides , amines and/or bisphenols , characterized in that , the synthetic material composite component is formed of a thin hard synthetic materials outer layer , at least one elastomer layer adjoining the former on the inside , and at least one metal and/or synthetic materials carrier layer , acting as a reinforcing support structure , adjoining said elastomer layer on the inside , and the synthetic materials carrier layer made of a fiber-reinforced synthetic material , and served as an impact protection part , or served as a splinter protection part or as a protection part against sudden total failure , or served as a protection part against vibrations and vibration damage , against resonances , wherein the synthetic materials carrier layer , which may optionally also be supplemented or replaced by at least one metal ...

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Номер записи: 58
09-10-2014 дата публикации

Scroll compressor

Номер: US20140301880A1
Автор: Akio Hiraoka, Akira Sawamoto, Maki AOKI, Masaharu Hatta, Masanori Akizuki, Naoki HORIBE, Satoshi Nomura, Takao Masamura, Youichirou TSUBOI
Принадлежит: Taiho Kogyo Co Ltd

[Problem] To exchange the roller bearing that has been used in a scroll compressor mounted in an automobile with a m slide bearing. To provide a slide bearing having a performance that is at least equivalent to that of a roller bearing. [Solution] The slide bearing results from baking onto a back metal a sliding layer of 5-60 wt % graphite having an average diameter of 5-50 μm and a graphitization degree of at least 0.6, the remainder comprising a polyimide resin and/or a polyamide-imide resin. The form of the graphite has: (a) an average shape factor (YAVE) as defined of 1-4 for the particles excluding the minute particles that are no greater than 0.5 times the average diameter, and there being at least 70% by number of particles having a shape factor (Y) in the range of 1-1.5; or (b) graphite particles having a particle ratio of at least 0.5 being at least 50% of the total by number.

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Номер записи: 59
04-08-2016 дата публикации

PUMP WITH PLUNGER HAVING TRIBOLOGICAL COATING

Номер: US20160222959A1
Автор: CAMPION Robert Michael, Hazari Shivangini Singh, JR. John Jay, POLLARD Michael James, Steffen Joshua, STOCKNER Alan Ray, TAYLOR STEVEN CHARLES, TRUHAN
Принадлежит: CATERPILLAR INC.

A pump is disclosed. The pump may include at least one pumping mechanism. The at least one pumping mechanism may include a barrel formed of a substrate having a bore and a plunger formed of a substrate and slidably disposed within the bore in the barrel. The pump may further include a coating disposed on the plunger. The coating may include a main layer containing a tribological material and a sacrificial break-in layer disposed on the main layer, the break-in layer containing a tribological material. 1. A pump comprising: a barrel formed of a substrate having a bore; and', 'a plunger formed of a substrate and slidably disposed within the bore in the barrel; and, 'at least one pumping mechanism including a main layer containing a tribological material; and', 'a sacrificial break-in layer disposed on the main layer, the break-in layer containing a tribological material., 'a coating disposed on the plunger, the coating including2. The pump of claim 1 , wherein the main layer tribological material contains amorphous diamond-like carbon (ADLC).3. The pump of claim 1 , wherein the break-in layer tribological material contains at least one of a diamond-like carbon (DLC) material claim 1 , titanium molybdenum disulfide (TiMoS) claim 1 , or a ceramic material.4. The pump of claim 1 , wherein the coating further includes a support layer disposed between the main layer and the substrate of the plunger claim 1 , the support layer including a tribological material.5. The pump of claim 4 , wherein the support layer tribological material contains at least one of a DLC material or chromium carbide.6. The pump of claim 1 , wherein the bore is coated with a metal plating.7. The pump of claim 6 , wherein the metal plating includes nickel or chrome.8. The pump of claim 6 , wherein the metal plating is impregnated with a tribological material.9. The pump of claim 8 , wherein the metal plating tribological material includes polytetrafluroethylene (PTFE).10. The pump of claim 1 , wherein ...

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Номер записи: 60
04-07-2019 дата публикации

Actuator device

Номер: US20190207538A1
Автор: Eitaro Tanaka, Goro Ueda, Haruhiko Watanabe, Takuma Yamauchi
Принадлежит: Denso Corp

An actuator device includes an actuator member, a drive subject, a first drive device and a second drive device. The actuator member is configured to be deformed in response to application of energy to the actuator member from an outside. The drive subject is coupled to the actuator member. The first drive device is configured to apply the energy to the actuator member and thereby displace the drive subject in a deforming direction of the actuator member. The second drive device is configured to displace the drive subject in a different direction that is different from the deforming direction of the actuator member.

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Номер записи: 61
02-08-2018 дата публикации

SLIDING MEMBER AND SWASH PLATE COMPRESSOR

Номер: US20180216608A1
Автор: KUBOTA Tsutomu
Принадлежит:

Swash plate , which is a sliding member, includes base material , and coating layer that is formed on base material and has a thickness of 10 μm or more. Coating layer includes binder resin and solid lubricant , which is dispersed in binder resin and has a c-axis orientation, and a relative c-axis intensity ratio of solid lubricant in coating layer is 80% or more. 1. A sliding member comprising:a base material; anda coating layer formed on the base material, having a thickness of 10 μm or more, a binder resin; and', 'a solid lubricant that is dispersed in the binder resin and has a c-axis orientation, and, 'wherein the coating layer includesa relative c-axis intensity ratio of the solid lubricant in the coating layer is 80% or more.2. The sliding member according to claim 1 , whereinthe binder resin includes at least one of polyamide imide, polyamide, and polyimide.3. The sliding member according to claim 1 , wherein{'sub': 2', '2, 'the solid lubricant includes at least one of MoS, graphite, WS, and h-BN.'}4. A swash plate compressor in which the sliding member according to is used as a swash plate. The present invention relates to a sliding member that has a resin coating layer in which a solid lubricant is dispersed.A sliding member is known which has a resin coating layer in which a solid lubricant is dispersed. Patent Document 1 discloses a sliding member in which a resin film layer (a resin coating layer) that has a thickness of 3 μm or less and includes a solid lubricant with a relative c-axis intensity ratio of 90% is formed in order to realize a decrease in the friction coefficient and an improvement in seizure resistance.Patent Document 1: JP 5391327BFor example, with a sliding member that is used in an environment with relatively little lubricant, such as a swash plate for a swash plate compressor, wear is likely to progress, and in the technique disclosed in Patent Document 1, there has been a possibility that the coating layer will wear out due to ...

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Номер записи: 62
11-07-2019 дата публикации

INSULATION LAYER ON STEEL PISTONS

Номер: US20190211774A1
Автор: Schneider Norbert G.
Принадлежит:

A steel piston designed to improve thermal efficiency, fuel consumption, and performance of an engine is provided. The piston includes a steel body portion and a thermal barrier layer applied to an upper combustion surface and/or a ring belt to reduce the amount of heat transferred from a combustion chamber to the body portion. The thermal barrier layer has a thermal conductivity which is lower than a thermal conductivity of the steel body portion. The thermal barrier layer typically includes a ceramic material, for example ceria, ceria stabilized zirconia, and/or a mixture of ceria stabilized zirconia and yttria stabilized zirconia in an amount of 90 to 100 wt. %, based on the total weight of the ceramic material. The thermal barrier layer can also have a gradient structure which gradually transitions from 100 wt. % of a metal bond material to 100 wt. % of the ceramic material. 1. A piston comprising:a body portion formed of steel,said body portion including an upper wall including an undercrown surface,said upper wall including an upper combustion surface opposite said undercrown surface,a ring belt depending from said upper wall and extending circumferentially around a central longitudinal axis of said piston,a pair of pin bosses depending from said upper wall, anda pair of skirt panels depending from said ring belt and coupled to said pin bosses,a thermal barrier layer applied to at least a portion of said upper combustion surface and/or at least a portion of said ring belt, said thermal barrier layer having a thermal conductivity which is lower than a thermal conductivity of said steel of said body portion,wherein said thermal barrier layer includes a ceramic material, and said ceramic material of said thermal barrier layer includes ceria in an amount of 90 to 100 wt. %, based on the total weight of said ceramic material.2. A piston according claim 1 , wherein said ceria of said ceramic material has a thermal expansion coefficient at 21° C. ranging from 10E-6 ...

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Номер записи: 63
11-08-2016 дата публикации

Reciprocating piston engine with liner

Номер: US20160230695A1
Автор: Bernd Steiner, Klaus-Peter Heinig, Stefan Quiring
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

A reciprocating piston engine which has a cylinder block, at least one combustion chamber arranged in the cylinder block and a liner which borders the combustion chamber and is composed of a first material is provided. In one example, the reciprocating piston engine comprises a reinforcing element composed of a second material for the radial reinforcement of the liner, said reinforcing element being arranged between the cylinder block and the liner and at least partially surrounding the liner, with the second material having a higher modulus of elasticity than the first material.

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Номер записи: 64
27-08-2015 дата публикации

Piston type internal combustion engine

Номер: US20150240742A1
Автор: Nobuya TAKAHARA
Принадлежит: Individual

An internal combustion engine includes a cylinder of which the interior is divided into two in the longitudinal direction. The lower chamber serves as a mechanical driving portion in which the piston is reciprocated. The upper chamber serves as a power portion in which combustion gas is drawn in, compressed, burned and exhausted. A cylindrical portion with a lid which moves into the power portion is continuously provided on top of the piston. A gap is defined between the cylindrical portion and the inner peripheral surface of the power portion of the cylinder. The inner peripheral surface of the power portion is defined by a heat shield tube fitted in the cylinder. A heat insulating tube is provided on the outer periphery of the heat shield tube.

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Номер записи: 65
16-08-2018 дата публикации

COMPRESSOR SWASH PLATE AND COMPRESSOR EQUIPPED WITH SAME

Номер: US20180230980A1
Автор: Akizuki Masanori, Kanemitsu Hiroshi, Niimi Hideki
Принадлежит: TAIHO KOGYO CO., LTD.

A compressor swash plate includes a base member having a flat plate shape, and a coating layer formed on a surface of the base member and having projections formed in a linear shape, in which the following inequalities are satisfied when a plane part formed on a prism is pressed against the coating layer with a pressure of 30 MPa: 0.01≤B≤0.06 and 10≤S≤40, where B indicates widths (mm) of surfaces of the projections in contact with the plane part, and S indicates a percentage (%) of a total sum of an area Si of the contact surfaces (a gross area of the surfaces of the projections in contact with the plane part) relative to a reference area (an area of a part of the coating layer against which the plane part is pressed). 16-. (canceled)7. A compressor swash plate comprising:a base member having a flat plate shape; anda coating layer formed on a surface of the base member and having a projection formed in a linear shape, [{'br': None, '0.01≤B≤0.06\u2003\u2003(1)'}, {'br': None, '10≤S≤40\u2003\u2003(2)'}, {'br': None, '0.001≤H≤0.01\u2003\u2003(3)'}, {'br': None, '0.005≤T≤0.06\u2003\u2003(4)'}], 'wherein when a plane part formed on a pressing member is pressed against the coating layer with a pressure of 30 MPa, the coating layer is elastically deformed so that the following inequalities are satisfied,'}where B indicates a width (mm) of a surface of the projection in contact with the plane part, S indicates a percentage (%) of a gross area of the surface of the projection in contact with the plane part relative to an area of a part of the coating layer against which the plane part is pressed, H indicates a height (mm) of the projection when the flat part is pressed on the coating layer, and T indicates a thickness (mm) of the coating layer when the flat part is pressed on the coating layer.8. The compressor swash plate according to claim 7 , whereinthe projection is formed in a shape of a plurality of concentric circles.9. The compressor swash plate according to claim 7 ...

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Номер записи: 66
17-09-2015 дата публикации

Components and motors for downhole tools and methods of applying hardfacing to surfaces thereof

Номер: US20150259983A1
Автор: James L. Overstreet, Jimmy W. Eason, Travis E. Puzz
Принадлежит: Baker Hughes Inc

A component for a downhole tool includes a rotor and a hardfacing precursor. The hardfacing precursor includes a polymeric material, hard particles, and a metal. A hydraulic drilling motor includes a stator, a rotor, and a sintered hardfacing material on an outer surface of the rotor or an inner surface of the stator. Methods of applying hardfacing to surfaces include forming a paste of hard particles, metal matrix particles, a polymeric material, and a solvent. The solvent is removed from the paste to form a sheet, which is applied to a surface and heated. A component for a downhole tool includes a first hardfacing material, a second hardfacing material over the first hardfacing material and defining a plurality of pores, and a metal disposed within at least some of the pores. The metal has a melting point lower than a melting point of the second hardfacing material.

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Номер записи: 67
21-10-2021 дата публикации

THERMALLY DRIVEN ELASTOCALORIC SYSTEM

Номер: US20210324839A1
Автор: Grabon Michel
Принадлежит:

A thermally driven elastocaloric system and a method for generating at least one of a heating potential and a cooling potential are provided. The thermally driven elastocaloric system includes a first shape memory alloy (SMA) member, a second shape memory alloy (SMA) member, and a connection mechanism configured between the distal end of the first SMA member and the distal end of the second SMA member. The connection mechanism is configured to transfer a force between the first SMA member and the second SMA member. The transfer of a compressive force to an SMA member may generate a heating potential in the SMA member, and the transfer of a tensile force to an SMA member may generate a cooling potential in the SMA member. Whether a compressive force or a tensile force is transferred may be dependent on whether heat is transferred to or from a SMA member. 1. A thermally driven elastocaloric system comprising:a first shape memory alloy (SMA) member comprising a proximal end and a distal end;a second shape memory alloy (SMA) member comprising a proximal end and a distal end; anda connection mechanism configured between the distal end of the first SMA member and the distal end of the second SMA member, the connection mechanism configured to transfer a force between the first SMA member and the second SMA member.2. The thermally driven elastocaloric system of claim 1 , further comprising a working fluid for transferring a heat between the working fluid and at least one of the first SMA member and the second SMA member.3. The thermally driven elastocaloric system of claim 2 , wherein the working fluid is configured to transfer heat to the first SMA member.4. The thermally driven elastocaloric system of claim 3 , wherein the connection mechanism transfers a compressive force to the second SMA member when heat is transferred from the working fluid to the first SMA member.5. The thermally driven elastocaloric system of claim 4 , wherein the compressive force transferred by ...

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Номер записи: 68
08-10-2015 дата публикации

Bush bearing and a scroll compressor including a bush bearing

Номер: US20150285302A1
Автор: Byeongchul Lee, Eunju HWANG, Junchul Oh, Secheon CHOI, Sungyong Ahn
Принадлежит: LG ELECTRONICS INC

A bush bearing and a scroll compressor including a bush bearing are provided. A boss of an orbiting scroll may be inserted into and coupled to a boss coupling groove of a rotational shaft, and thus, an outer circumferential surface of a bush bearing may wholly contact an inner circumferential surface of the boss coupling groove, thereby decreasing wear of the bush bearing. Further, friction loss in the bush bearing may be reduced, and thus, compression efficiency and reliability may be enhanced, noise may be reduced, and material costs may be reduced. Furthermore, despite that the bush bearing is formed in a ring shape and press-fitted to the boss, as the bush bearing may be formed of a plastic material having an ether ketone bonding in consideration of a thermal expansion rate, an elongation, and a press-fit range, the bush bearing may be effectively prevented from being detached from the boss, thereby enhancing a reliability of a compressor.

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Номер записи: 69
29-08-2019 дата публикации

SHAPE MEMORY ALLOY ACTUATOR WITH STRAIN GAUGE SENSOR AND POSITION ESTIMATION AND METHOD FOR MANUFACTURING SAME

Номер: US20190264664A1
Автор: KHAN Mohammad Ibrahem, KUNTZ Michael, ZAMANI Nima
Принадлежит: Smarter Alloys Inc.

A shape memory actuator including: a monolithic shape memory alloy; a shape memory effect (SME) section of the alloy, configured for actuation; a pseudo-elastic (PE) section of the alloy, configured as a sensor for enabling position sensing; and a control system configured to control the actuator by controlling a current through at least the SME section based on the sensor results of the PE section. A method of controlling a shape memory actuator, the method including: applying a predetermined current through the actuator; measuring a first resistance of the SME section; measuring a second resistance of the PE section; calculating an estimated position of the actuator based on the first and second resistances; and adapting the current applied to the actuator based on the estimated position. A method of manufacturing a shape memory actuator, the method including: laser processing; thermomechanically treating; and training the shape memory alloy. 1. A shape memory actuator comprising:a monolithic shape memory alloy;a shape memory effect (SME) section of the monolithic shape memory alloy, configured for actuation;a pseudo-elastic (PE) section of the monolithic shape memory alloy, configured as a sensor for enabling position sensing; anda control system configured to control the actuator by controlling a current through at least the SME section based on the sensor results of the PE section.2. A shape memory actuator according to claim 1 , wherein the PE section is configured as a strain gauge.3. A method of controlling a shape memory actuator claim 1 , the method comprising:applying a predetermined current through the actuator via a control system;measuring a first resistance of a shape memory effect (SME) section of the actuator;measuring a second resistance of a pseudo-elastic (PE) section of the actuator;calculating an estimated position of the actuator, via the control system, based on the first and second resistances; andadapting the current applied to the actuator ...

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Номер записи: 70
29-08-2019 дата публикации

VACUUM-PUMP ROTOR

Номер: US20190264686A1
Автор: Dreifert Thomas, Giebmanns Wolfgang, Muller Roland, Schiller Dirk
Принадлежит:

A vacuum pump rotor comprises at least one displacement element arranged on a rotor shaft. The rotor shaft comprises at least one shaft end for a bearing element to be arranged thereon. The rotor element, the at least one displacement element and the at least one shaft end are made from aluminum or an aluminum alloy. 1. A vacuum pump rotor , comprisingat least one displacement element arranged on a rotor shaft,wherein said rotor shaft comprises at least one shaft end for a bearing element to be arranged thereon,whereinsaid rotor shaft, said at least one displacement element and said at least one shaft end are made from aluminum or an aluminum alloy.2. The vacuum pump rotor according to claim 1 , wherein on the rotor shaft at least two displacement elements are arranged.3. The vacuum pump rotor according to claim 1 , wherein the rotor shaft and at least one of the displacement elements are integrally formed.4. The vacuum pump rotor according to claim 1 , wherein the rotor shaft and all displacement element are integrally formed.5. The vacuum pump rotor according to claim 1 , wherein the aluminum used or the aluminum alloy used has a thermal expansion coefficient which is smaller than or equal to 21×10/K.6. The vacuum pump rotor according to claim 1 , wherein the aluminum alloy used comprises a high silicon content of about least 15%.7. The vacuum pump rotor according to claim 1 , wherein the surface of the at least one displacement element and/or the rotor shaft is provided with a wear-reducing coating.8. The vacuum pump rotor according to claim 1 , wherein the at least one shaft end comprises a bushing from a harder material claim 1 , in particular steel or a ceramic material.9. The vacuum pump rotor according to claim 8 , wherein the bushing is pressed onto the at least one shaft end or is molded into said at least one shaft end.10. The vacuum pump rotor according to claim 1 , wherein the surface of at least one of the displacement elements is provided with an ...

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Номер записи: 71
15-10-2015 дата публикации

METHOD FOR COATING A SLIDING SURFACE OF A TROCHOID HOUSING IN A ROTARY ENGINE AND TROCHOID HOUSING COMPRISING A COATED SLIDING SURFACE

Номер: US20150292101A1
Автор: Eiermann Dankwart, GOLLASCH Marko
Принадлежит:

The invention relates to a method for coating a running surface () of a trochoid housing () of a rotary engine, characterized in that a circumferential recess () is made in the running surface (), which recess () is delimited by a land () at at least one transition region to a side face () of the trochoid housing (). Furthermore, the invention relates to a trochoid housing () having a coated running surface (). 121525631. A method for coating a running surface () of a trochoid housing () of a rotary engine , characterized in that a circumferential recess () is made in the running surface () , which recess () is delimited by a land () at at least one transition region to a side face () of the trochoid housing ().2563. The method as claimed in claim 1 , characterized in that the recess () is delimited in each case by a land () at both transition regions to the two side faces ().35. The method as claimed in or claim 1 , characterized in that the recess () is made with a depth which corresponds to a magnitude of a desired layer thickness plus a machining allowance.466. Method according to claim 1 , or claim 1 , characterized in that the recess is made in such a way that at least one narrow land () claim 1 , preferably two narrow lands () remain.5556. The method as claimed in one of to claim 1 , characterized in that the recess () is made in such a way that the recess () ends at an angle with respect to the at least one land ().6456. The method as claimed in one of to claim 1 , characterized in that a coating () is applied into the recess () and/or to the at least one land ().7564. The method as claimed in claim 6 , characterized in that a protective layer is produced claim 6 , in particular by means of hard coating claim 6 , on the recess () and/or on the at least one land () before the application of the coating ().834. The method as claimed in or claim 6 , characterized in that the side faces () are machined before the application of the coating () claim 6 , the ...

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Номер записи: 72
06-10-2016 дата публикации

SCROLL EXPANDER WITH ELECTRICITY GENERATING SCROLLS

Номер: US20160290337A1
Автор: Luo Xing, Wang Jihong
Принадлежит:

A device for generating electrical power, the device comprising a scroll expander with first and second scrolls configured to move relative to each other when a fluid is provided to an inlet at a higher pressure than a pressure at an outlet. The first scroll is configured to provide a magnetic field and the second scroll comprises one or more conductors in which electric currents are induced when the first and second scrolls move relative to each other. 1. A device for generating electrical power , the device comprising a scroll expander with first and second scrolls configured to move relative to each other when a fluid is provided to an inlet at a higher pressure than a pressure at an outlet , wherein the first scroll is configured to provide a magnetic field and the second scroll comprises one or more conductors in which electric currents are induced when the first and second scrolls move relative to each other.2. A device according to claim 1 , comprising one or more magnetic regions extending around and/or spaced around the first scroll.3. A device according to claim 2 , wherein at least one of the one or more magnetic regions is unidirectionally magnetised.4. A device according to claim 3 , wherein the at least one magnetic region is magnetised in a direction substantially parallel to a radial line from the centre of the first scroll through a centre of the magnetic region.5. A device according to claim 1 , comprising a plurality of the conductors spaced around the second scroll.6. A device according to claim 1 , comprising a plurality of magnetic regions and a plurality of the conductors and wherein one or more of the plurality of conductors is arranged in association with a corresponding one or more of the plurality of the magnetic regions.7. A device according to claim 1 , wherein at least one of the one or more conductors comprises a coil.8. A device according to claim 7 , wherein the coil axis is substantially aligned with a radial line from the centre of ...

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Номер записи: 73
05-10-2017 дата публикации

ROTARY PUMP HAVING A CASING BEING FORMED WITH A COMMUNICATING HOLE COMMUNICATING A SPACE THAT IS BETWEEN THE SIDE PLATE AND THE WALL SURFACE OF THE DRIVING MACHINE

Номер: US20170284398A1
Автор: KAWAKAMI Taku, Minato Ichiro, Mitsuhashi Yoshihiro, MURAKAMI Hiroyuki, TAKAHASHI Kouji, Tanaka Katsunori
Принадлежит: NABTESCO AUTOMOTIVE CORPORATION

It is intended to provide a vacuum pump so that without upsizing the vacuum pump, noise and vibration are reduced, heat dissipation property is secured, and the casing is downsized. Therefore, at least one turning part is provided in an exhausting path formed in a casing body. The casing body is formed of a material whose thermal conductivity is higher than that of a rotor and vanes, and a cylinder part where the vanes slide is press fitted in the casing body. 1. A vacuum pump comprising:rotary compressing elements in a casing, a cylinder chamber in which the rotary compressing elements slide,', 'an expansion chamber which makes a compressed air exhausted from the cylinder chamber to be expanded, and', 'an exhausting path which connects the cylinder chamber and the expansion chamber, and at least one turning part is provided in the exhausting path., 'wherein the casing comprises'}2. The vacuum pump according to claim 1 , whereinthe exhausting path and the expansion chamber are adjacently provided at a peripheral part of the cylinder chamber in the casing.3. The vacuum pump according to claim 1 , whereina silence member formed of porous material is arranged in the exhausting path.4. The vacuum pump according to claim 1 , whereinthe casing comprises a cylindrical liner which forms the cylinder chamber,the cylindrical liner comprises an exhausting port which is connected to the exhausting path,a diameter of the exhausting port at an inside of the cylinder chamber is larger than a diameter of the exhausting port at an outside of the cylinder chamber, andthe exhausting port is formed to a taper shape whose diameter is reduced from the inside to the outside.5. The vacuum pump according to claim 1 , whereina rotary shaft which drives the rotary compressing elements is comprised, anda front end part of the rotary shaft is supported with a bearing which is provided in the casing.6. A vacuum pump comprising:rotary compressing elements in a casing, a casing body which is ...

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Номер записи: 74
22-10-2015 дата публикации

Contact member, slide member, compressor comprising contact member or slide member, and manufacturing method of compressor

Номер: US20150300340A1
Автор: Hirotaka Kawabata, Hiroyuki Fukuhara, Masakazu Yamaoka, Yoshinori Ishida, Yoshiyuki Futagami
Принадлежит: Panasonic Corp, Panasonic Intellectual Property Management Co Ltd

A contact member or a slide member of the present invention comprises a surface treatment film ( 160 ) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, wherein each of the coating layers includes synthetic resin and a solid lubricant, and wherein the solid lubricant ( 162 ) of the coating layer located at an innermost side is lower in content percentage than the solid lubricant of the coating layer located at an outermost side. A contact member or a slide member of the present invention comprises a surface treatment film ( 160 ) including two or more coating layers stacked together, in at least a portion of a contact surface or a slide surface thereof, each of the coating layers includes synthetic resin, and the coating layer located at an innermost side is larger in elastic deformation amount than the coating layer located at an outermost side.

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Номер записи: 75
03-09-2020 дата публикации

SHAPE MEMORY ALLOY ACTUATOR BEARINGS

Номер: US20200277941A1
Автор: Eddington Robin, Howarth James
Принадлежит:

Embodiments of the present techniques provide methods for assembling and manufacturing shape memory alloy (SMA) actuator assemblies, which may also advantageously simplify the process of, speed-up the process of and/or reduce the cost of manufacturing SMA actuator assemblies. 1. A shape memory alloy (SMA) actuation apparatus comprising:a support structure;a moveable component supported on the support structure in a manner allowing movement of the moveable component relative to the support structure in two orthogonal directions perpendicular to a notional primary axis extending through the moveable component, the moveable component comprising a spring plate; andat least two shape memory alloy (SMA) actuator wires connected between the moveable component and the support structure and arranged to, on contraction, move the moveable component; a sacrificial body portion, and', 'a plurality of metallic bearings arranged to allow movement of the plate of the moveable component relative to the support structure, the metallic bearings held apart by the sacrificial body portion,', 'the sacrificial body portion being removable from the plurality of metallic bearings during manufacture/assembly of the SMA actuation apparatus., 'wherein the support structure comprises a bearing sub-assembly comprising2. The SMA actuation apparatus as claimed in wherein the support structure further comprises a support component claim 1 , and the metallic bearings are attached to the support component.3. The SMA actuation apparatus as claimed in wherein the support component is formed of a polymer and the metallic bearings are attached to the support component by an adhesive.4. The SMA actuation apparatus as claimed in wherein the support component is formed of a metal or metal alloy claim 2 , and the metallic bearings are attached to the support component by an electrically insulative adhesive.5. The SMA actuation apparatus as claimed in wherein the support component is formed of steel.6. The ...

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Номер записи: 76
20-10-2016 дата публикации

Scroll Compressor Having An Insulated High-Strength Partition Assembly

Номер: US20160305430A1
Автор: Pankaj AHIRE, Pavankumar Pralhad JORWEKAR, Rohan Rajaram PRABHU, Yogesh Sudhir MAHURE
Принадлежит: Emerson Climate Technologies Inc

The present disclosure provides a high-strength thermally insulative partition assembly (e.g., muffler plate) for use in a scroll compressor. The assembly includes at least one metal plate and an insulating region. The insulating region may have at least one insulating material or may be a low-pressure or vacuum chamber. The partition assembly serves to minimize heat transfer between a low-pressure refrigerant on the low-pressure, suction side and a high-pressure, high-temperature refrigerant on the high-pressure, discharge side of the compressor. The insulating region may be sandwiched between multiple metal plates. The insulating region may be coated on the metal plate. The insulating region may also be a preformed component or mask that is coupled to the metal plate via a mechanical interlock system.

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Номер записи: 77
19-10-2017 дата публикации

HIGHLY THERMALLY CONDUCTIVE VALVE SEAT RING

Номер: US20170298790A1
Автор: Emde Dirk, Kohler Ekkehard, Lelgermann Thomas, Seyfarth Anna
Принадлежит: Bleistahl-Produktions GmbH & Co. KG

The invention relates to a powdermetallurgically produced valve seat ring having a carrier layer and a function layer. It is the objective of the invention to provide a valve seat ring of the kind mentioned above that offers significantly higher thermal conductivity properties. To achieve this objective and based on a valve seat ring of the kind first mentioned above the invention proposes that the carrier material of the carrier layer has a thermal conductivity higher than 55 W/m*K at a total copper content ranging between >25 and 40% w/w. 1232. Powdermetallurgically produced valve seat ring comprising a carrier layer () and a function layer (), characterized in that the carrier material of the carrier layer () has a thermal conductivity in excess of 55 W/m*K at a total copper content ranging between >25 and 40% w/w. The invention relates to a valve seat ring that is produced by powder metallurgical technique and comprises a carrier material as well as a function material.Valve seat rings of the kind first mentioned above are, for example, known from the Japanese laid-open patent application JP 6145720 A. This publication describes a copper-infiltrated multilayer valve seat ring with Co- and Mo-constituents for internal combustion engines.In principle, the prior-art valve seat rings have an advantage in that they exhibit excellent strength. This is particularly due to the fact that two different material layers are provided, with the carrier material in that case offering outstanding strength characteristics. Such prior-art valve seat rings of the kind mentioned above have a disadvantage, however, in that they can no longer meet the increasing demands of internal combustion engines since their thermal conductivity properties are poor. The thermal conductivity of conventional carrier materials is less than 45 W/m*K as a rule.It is the objective of the present invention to provide a valve seat ring of the kind mentioned above that offers significantly higher thermal ...

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Номер записи: 78
18-10-2018 дата публикации

REFRIGERATION CYCLE DEVICE

Номер: US20180299175A1
Автор: FUKUSHIMA Masato, HAYAMIZU Hiroki, Takagi Hirokazu
Принадлежит: Asahi Glass Company, Limited

A refrigeration cycle apparatus includes a compressor to compress a working fluid to perform a refrigeration cycle. The working fluid contains a hydrofluoroolefin (HFO) having a double bond in a molecular structure thereof. The refrigeration cycle apparatus includes a temperature rise inhibiting unit which inhibits a temperature rise within the refrigeration cycle. 1. A refrigeration cycle apparatus including a compressor to compress a working fluid containing a hydrofluoroolefin (HFO) having a double bond in a molecular structure thereof to perform a refrigeration cycle ,the refrigeration cycle apparatus comprising a temperature rise inhibiting unit which inhibits a temperature rise within the refrigeration cycle.2. The refrigeration cycle apparatus according to claim 1 , wherein:the compressor includes a compression mechanism which compresses the working fluid in a compression chamber, a high-pressure space which receives the working fluid which has been compressed in the compression chamber and discharged therefrom, and a discharge valve which is provided between the compression chamber and the high-pressure space and intermittently discharges the working fluid from the compression chamber to the high-pressure space; andthe temperature rise inhibiting unit is provided in the discharge valve.3. The refrigeration cycle apparatus according to claim 2 , wherein:the discharge valve includes a valve seat which protrudes toward the high-pressure space in a periphery of a hole serving as a flow path of the working fluid which has been compressed, and a valve body which is configured to abut on the valve seat in a closed state and to separate from the valve seat in an open state, so as to open and close the hole; andresin coating as the temperature rise inhibiting unit is applied to a contact portion of the valve seat on which the valve body abuts in the closed state and a contact portion of the valve body on which the valve seat abuts in the closed state.4. The ...

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Номер записи: 79
05-11-2015 дата публикации

PUMP PROVIDED WITH AN ASSEMBLY FOR MEASURING THE TEMPERATURE OR FLOW RATE OF A FLUID

Номер: US20150316425A1
Автор: Nicolas Stephane
Принадлежит:

A pump including a first substrate in a plane with a side having a cavity formed therein. There are intake and discharge channels in the side for admitting and discharging a fluid. There is a second substrate having a side joined to the first substrate, to close the channels and form tubes in which pumped fluid flows. The second substrate also has a membrane to close the cavity to form a leak-tight chamber. The membrane is deformable: in order to expel the fluid out of the chamber via the discharge channel, and to suck the fluid into the chamber via the intake channel. There is actuator capable of converting the energy into movement of the membrane and an assembly for measuring the temperature/flow rate of the fluid. There is a temperature probe placed on the exterior side of the insulating material to insulate thermally the probe from the substrate. 115-. (canceled)16. A pump comprising:a first substrate extending essentially in a plane, the substrate having a side;a cavity formed in the side of the first substrate;intake and discharge channels for admitting and discharging a fluid, respectively, said channels being formed in the side of the first substrate; and from a suction position to an expulsion position in order to expel the fluid out of the chamber via the discharge channel, and', 'from the expulsion position to the suction position in order to suck the fluid into the chamber via the intake channel;', 'an actuator capable of converting the energy that it receives into a movement of the membrane between its suction and expulsion positions, and—an assembly for measuring the temperature or flow rate of the fluid, the assembly comprising:, 'a second substrate having a side joined to the side of the first substrate, the side closing the channels in order to form tubes inside of which the pumped fluid is able to flow, the second substrate also comprising at least one membrane closing the cavity to form a chamber that is leak-tight to the fluid, the membrane being ...

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Номер записи: 80
26-10-2017 дата публикации

COMPRESSION DEVICE AND SCROLL COMPRESSOR USING SUCH A COMPRESSION DEVICE

Номер: US20170306956A1
Автор: MONET Eric
Принадлежит: LIEBHERR-AEROSPACE TOULOUSE SAS

A compression device includes at least: two interleaved scrolls each of which is made of an aluminum alloy, one of the scrolls, being a fixed scroll (), and is fixed and the other scroll, which is an orbiting scroll and moves eccentrically without rotating. Also included are anti-rotation means made of an aluminum alloy and configured to allow anti-rotation of the orbiting scroll. The compression device also includes one flat thrust bearing configured to axially contain the orbiting scroll and is made of aluminum alloys or grades of cast iron. The compression device also includes coatings for promoting friction between the fixed scroll, the orbiting scroll, the anti-rotation means and the flat thrust bearing. 1. Compression device comprising at least:{'b': 3', '5', '3', '5, 'two interleaved scrolls (, ) and each of which is made of an alloy with a density less than 5, wherein one of the scrolls, referred to as the fixed scroll (), is fixed and the other scroll, referred to as the orbiting scroll (), moves eccentrically without rotating,'}{'b': '5', 'anti-rotation means made of an aluminum alloy and suitable for allowing anti-rotation of said orbiting scroll (), and'}{'b': 7', '5, 'a flat thrust bearing () suitable for axially retaining the orbiting scroll (), wherein the surface of the scroll configured to come into contact with the flat thrust bearing is covered with a thick coating, with a thickness between 40 and 200 μm, with a hardness greater than 1100 HV and mostly comprised of an oxide coming from the alloy.'}2. The compression device according to claim 1 , wherein the scrolls are made of a material selected from the group consisting of: aluminum claim 1 , magnesium and titanium alloys.3. The compression device according to wherein the flat thrust bearing is made of a material selected from the group consisting of: aluminum claim 1 , magnesium and titanium alloys claim 1 , and the surface of the flat thrust bearing intended to come into contact with the ...

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Номер записи: 81
12-11-2015 дата публикации

HIGHLY THERMALLY CONDUCTIVE VALVE SEAT RING

Номер: US20150322828A1
Автор: Emde Dirk, Kohler Ekkehard, Lelgemann Thomas, Seyfarth Anna
Принадлежит: Bleistahl-Produktions GmbH & Co. KG

The invention relates to a powdermetallurgically produced valve seat ring having a carrier layer and a function layer. It is the objective of the invention to provide a valve seat ring of the kind mentioned above that offers significantly higher thermal conductivity properties. To achieve this objective and based on a valve seat ring of the kind first mentioned above the invention proposes that the carrier material of the carrier layer has a thermal conductivity higher than 55 W/m*K at a total copper content ranging between >25 and 40% w/w. 1232. Powdermetallurgically produced valve seat ring comprising a carrier layer () and a function layer () , characterized in that the carrier material of the carrier layer () has a thermal conductivity in excess of 55 W/m*K at a total copper content ranging between >25 and 40% w/w.22. Powdermetallurgically produced valve seat ring according to claim 1 , characterized in that the carrier material of the carrier layer () has a thermal conductivity in excess of 65 W/m*K claim 1 , in particular higher than 70 W/m*K.3. Powdermetallurgically produced valve seat ring according to claim 1 , characterized in that the carrier material contains an iron-copper alloy.4. Powdermetallurgically produced valve seat ring according to claim 3 , characterized in that the copper contents of the iron-copper alloy exceeds 5% w/w claim 3 , in particular amounts to appr. 10% w/w.5. Powdermetallurgically produced valve seat ring according to claim 1 , characterized in that the carrier material contains a mixture of the iron-copper alloy and copper powder.6. Powdermetallurgically produced valve seat ring according to claim 5 , characterized in that the share of the copper powder ranges between 5 and 15% w/w claim 5 , in particular amounts to appr. 10% w/w.7. Powdermetallurgically produced valve seat ring according to claim 1 , characterized in that the carrier material and/or the function material contains copper added by means of infiltration.8. ...

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Номер записи: 82
24-09-2020 дата публикации

SCROLL COMPRESSOR

Номер: US20200300242A1
Автор: AHN Hyun Seong, MOON Chi Myeong, Park Chang Eon
Принадлежит:

A scroll compressor includes a shaft being rotated by a drive source, an eccentric bush including a recess part into which the shaft is inserted and an eccentric part being eccentric to the shaft, an orbiting scroll configured to perform an orbiting motion in interlock with the eccentric part, a fixed scroll tooth-engaged with the orbiting scroll, and a buffer member configured to prevent an outer periphery of the shaft and an inner periphery of the recess part from coming in contact with each other, wherein the buffer member is formed to be able to perform a relative motion with respect to the shaft and the recess part. Accordingly, the scrolls are prevented from being damaged, an impact sound is prevented from being generated, and an increase of an inertial force and an unbalance force of a rotating body is suppressed. 1. A scroll compressor comprising:a shaft being rotated by a drive source;an eccentric bush including a recess part into which the shaft is inserted and an eccentric part being eccentric to the shaft;an orbiting scroll configured to perform an orbiting motion in interlock with the eccentric part;a fixed scroll tooth-engaged with the orbiting scroll; anda buffer member configured to prevent an outer periphery of the shaft and an inner periphery of the recess part from coming in contact with each other, wherein the buffer member is formed to be able to perform a relative motion with respect to the shaft and the recess part.2. The scroll compressor of claim 1 , wherein the buffer member is configured to have a ring shape.3. The scroll compressor of claim 2 , wherein the shaft further comprises:a first region inserted into an inner circumference of the buffer member; anda second region located on an opposite side of the recess part based on the first region, wherein an outer diameter of the first region is configured to be smaller than an outer diameter of the second region, and a stepped portion is formed between the first region and the second region. ...

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Номер записи: 83
02-11-2017 дата публикации

BEARING CAP OF INTERNAL COMBUSTION ENGINE

Номер: US20170314507A1
Автор: Hashimoto Atsushi, IKEHARA Kensuke, Mochida Hiroaki, SHIBATA Daisuke
Принадлежит: NISSAN MOTOR CO., LTD.

A bearing cap () is attached to a bulkhead () of a cylinder block () made of a light metal through a pair of bolts (). The bearing cap () has a frame () made of an iron-based metal and a cast light-alloy part (). The frame () has a pair of pillar parts () through which the bolts () extend and a circular-arc-shaped arch section (). At high temperatures, the span of the pair of the bolts () increases due to thermal expansion of the light-alloy material, and the pair of the pillar parts () expand. This causes the middle part of the arch section () to shift upward, thereby suppressing an increase in bearing clearance. 1. A bearing cap of an internal combustion engine , which is attached to a bulkhead of a cylinder block made of a light metal through bolts , and forms a main bearing part with a semi-circular-shaped concave portion of the cylinder block , comprising:a frame made of an iron-based metal; anda light-alloy part which is cast so as to cast the frame into the light-alloy part,wherein the frame has a pair of linear pillar parts including bolt through holes through which the bolts extend, and a circular-arc-shaped arch section connecting distal end portions of the pair of the pillar parts to each other.2. The bearing cap of the internal combustion engine according to claim 1 , wherein a radial distance from a bearing surface formed of the light-alloy part to a boundary between the light-alloy part and the frame is constant in the arch section claim 1 , and the radial distance in each of the pillar parts is shorter than the distance in the arch section claim 1 , in a cross section along a plane orthogonal to a crankshaft axial direction.3. The bearing cap of the internal combustion engine according to claim 1 , wherein a whole of the frame is covered with the light-alloy part.4. The bearing cap of the internal combustion engine according to claim 1 , wherein end surfaces of the pillar parts claim 1 , end surfaces which face the crankshaft axial direction claim 1 , ...

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Номер записи: 84
19-11-2015 дата публикации

SWASH PLATE TYPE COMPRESSOR

Номер: US20150330376A1
Автор: Ando Satoshi, Shishido Hiromitsu, Taniyama Norio, Tomita Takeo
Принадлежит: SANDEN HOLDINGS CORPORATION

[Problem] In a swash plate of a swash plate type compressor, adhesion resistance of the swash plate will be greatly improved as compared with that achieved in the prior art by optimizing the average aspect ratio and the average particle size of the fluororesin particles contained in a lubrication film provided on the swash plate. [Solution] In a swash plate of a swash plate type compressor, a lubrication film composed of a binder resin, the fluororesin particles having an average aspect ratio of 1 to 1.5 and an average particle size of 7 to 13 micron-meters, and the graphite is provided at a sliding portion against a shoe of the swash plate.

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Номер записи: 85
01-11-2018 дата публикации

Thermal barrier coating for engine combustion component

Номер: US20180313294A1
Автор: Joachim Wagenblast
Принадлежит: MAHLE International GmbH

A piston for an internal combustion engine includes a piston body having a top surface and having formed therein a combustion bowl surface, a base material of the piston body having a first thermal conductivity, a first layer of metal bonded to the top surface of the piston body, the first layer of metal having a second thermal conductivity that is lower than the first thermal conductivity, and a second layer of metal bonded to the first layer, the second layer of metal having a third thermal conductivity that is higher than the second thermal conductivity.

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Номер записи: 86
01-11-2018 дата публикации

SHAPE MEMORY ACTUATOR

Номер: US20180313346A1
Автор: Cefai Joseph, Oakes Tim
Принадлежит:

The invention provides an actuator having a wedge shaped member arranged to move in substantially linear reciprocating motion. A drive member is operatively coupled to the wedge shaped member. The wedge shaped member is arranged to deflect the drive member as the wedge shaped member moves. A shape memory material has a first end electrically connected to a first electrical connection terminal and fixed with respect to the first electrical connection terminal, and a second end electrically connected to the wedge shaped member and fixed with respect to the wedge shaped member. The wedge shaped member is electrically connected to a second electrical connection terminal. The actuator may be used in a pump having a pumping chamber with a membrane the displacement of which changes the pumping chamber volume. The drive member of the actuator is operatively coupled to the pumping chamber membrane. The pump may be used in an infusion system for the infusion of a liquid therapeutic product. 1. An actuator for a pump , the actuator comprising:a wedge shaped member arranged to move in substantially linear reciprocating motion;a drive member operatively coupled to the wedge shaped member, the wedge shaped member being arranged to deflect the drive member as the wedge shaped member moves; anda shape memory material having a first end and a second end, the first end being electrically connected to a first electrical connection terminal and being fixed with respect to the first electrical connection terminal, the second end being electrically connected to the wedge shaped member and being fixed with respect to the wedge shaped member, and the wedge shaped member being electrically connected to a second electrical connection terminal.2. The actuator according to claim 1 , wherein the wedge shaped member is moveable with respect to the drive member.3. The actuator according to claim 2 , wherein the wedge shaped member and the drive member are arranged to convert reciprocating ...

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Номер записи: 87
03-12-2015 дата публикации

METAL MEMBER OF A MOVING SYSTEM OF AN INTERNAL COMBUSTION ENGINE AND METHOD FOR MANUFACTURING THE METAL MEMBER

Номер: US20150345003A1
Автор: Avelar Araújo Juliano, Flores Denys
Принадлежит:

A metallic member for a mobile system of an internal combustion engine may include a body defining a crystallographic structure. The crystallographic structure may include an outer layer, a substrate and a saturated zone between the outer layer and the substrate. An external element may be dispersed at least partially through the crystallographic structure of the body. The body may be subjected to a superficial hardening treatment from infiltrating the external element into the crystallographic structure of the body via a laser beam penetrating at least one portion of an outer surface of the outer layer of the body. 1. A metallic member for a mobile system of an internal combustion engine , comprising:a body defining a crystallographic structure, the crystallographic structure including an outer layer, a substrate and a saturated zone between the outer layer and the substrate; andan external element dispersed at least partially throughout the crystallographic structure of the body;wherein the body is subjected to a superficial hardening treatment from infiltrating the external element into the crystallographic structure of the body via a laser beam penetrating at least one portion of an outer surface of the outer layer of the body.2. The metallic member according to claim 1 , wherein the metallic member is a piston ring.3. The metallic member according to claim 1 , wherein the metallic member is a piston sleeve.4. The metallic member according to claim 1 , wherein the substrate includes at least one of iron claim 1 , aluminum and a metal alloy.5. The metallic member according to claim 1 , wherein the external element includes at least one of cobalt claim 1 , nickel claim 1 , chromium claim 1 , nitrogen claim 1 , boron and carbon.6. The metallic member according to claim 1 , wherein the external element is composed of at least one of a carbide claim 1 , a sulfide claim 1 , a nitride and a carbon black material.7. The metallic member according to claim 1 , further ...

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Номер записи: 88
22-11-2018 дата публикации

Semi-compliant coating for thermal expansion absorption

Номер: US20180334991A1
Автор: Christopher Donald Wicks
Принадлежит: FORD GLOBAL TECHNOLOGIES LLC

An engine cylinder head includes an internal metal structure forming an upper portion of a combustion chamber. The internal metal structure includes a semi-compliant coating configured to absorb thermal expansion of the internal metal structure. The engine cylinder head also includes a polymer composite forming an external structure at least partially surrounding the internal metal structure.

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Номер записи: 89
30-11-2017 дата публикации

CYLINDER DRUM OF A HYDROSTATIC AXIAL PISTON MACHINE HAVING A WEAR-RESISTANT LAYER

Номер: US20170343107A1
Автор: Gaertner Bernd
Принадлежит:

A method is provided for forming wear-resistant layer on the surface of cylinder bores a cylinder drum of a hydrostatic axial piston machine within which a respective piston is moved in a manner subject to intensive wear. The cylinder bores are gas nitrocarburized in two stages to minimize the wear and include a thin uniform connecting layer that has a thickness of 4 to 16 μm and a comparatively thick underlying diffusion layer. 1. A method of forming a wear-resistant layer on the surface of a cylinder bore within a cylinder drum of a hydrostatic axial piston machine , the method comprising gas nitrocarburizing the surface of the cylinder bore in two stages:the first stage forming an oxide layer and a diffusion layer at the surface separated by a ductile connecting layer that is comparatively thin relative to the diffusion layer, the first stage comprising gas nitrocarburizing at a comparatively low treatment temperature and a comparatively long treatment duration; andthe second stage comprising further gas nitrocarburizing while increasing the carbon content of the connecting layer by the addition of carbon donors at a comparatively high treatment temperature relative to the first stage.2. The method according to claim 1 , wherein the connecting layer is formed with a thickness of 4 to 16 μm.3. The method according to claim 2 , wherein the connecting layer is formed with a thickness of 5 to 12 μm.4. The method according to claim 1 , wherein the diffusion layer is formed with a thickness of at least 50 μm.5. The method according to claim 1 , wherein the comparatively low temperature of the first stage is 500 to 510° C.6. The method according to claim 5 , wherein the comparatively high treatment temperature of the second stage is greater than 500° C.7. The method according to claim 1 , further comprising adding during the gas nitrocarburizing stages more nitrogen than in an undersaturated furnace atmosphere.8. The method according to claim 7 , wherein the step of ...

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Номер записи: 90
24-12-2015 дата публикации

HIGHLY WEAR-RESISTANT VALVE SEAT FOR USE IN INTERNAL COMBUSTION ENGINE AND MANUFACTURING METHOD THEREFOR

Номер: US20150369090A1
Автор: IKEMI Satoshi, OSHIGE Hiroshi, Sato Kenichi
Принадлежит: NIPPON PISTON RING CO., LTD.

A highly wear-resistant valve seat insert is provided. When an iron-based powder, a hard-particle powder, and a graphite powder are mixed to obtain a mixed powder, for formation of a layer on a valve-contacting face side, the hard-particle powder having an average particle size 15-50 μm, and the iron-based powder having an average particle size 15-50 μm are blended so a matrix part composition after sintering is a composition containing C: 0.3 to 2.0% by mass, one or more kinds selected from Co, Si, Ni, Mo, Cr, Mn, S, W, and V at 70% by mass or less in total, the balance being Fe and unavoidable impurities and a matrix part structure after sintering is a structure which contains hard-particles at from 10 to 65% by mass with respect to a total amount of a layer on a valve-contacting face side and disperses the hard-particles at 1000 particles/mmor more. 1. A highly wear-resistant valve seat insert for internal combustion engine , the valve seat insert for internal combustion engine comprising one layer or integrated two layers , made by an iron-based sintered body wherein{'sup': '2', 'at least a layer on a valve-contacting face side of the valve seat insert has a matrix part composition which contains C: 0.3 to 2.0% by mass, contains one kind or two or more kinds selected from among Co, Si, Ni, Mo, Cr, Mn, S, W, and V at 70% by mass or less in total, the balance being Fe and unavoidable impurities, and a matrix part structure which contains hard-particles at from 10 to 65% by mass with respect to a total amount of the layer on the valve-contacting face side and disperses the hard-particles at 1000 particles/mmor more.'}2. The valve seat insert for internal combustion engine according to claim 1 , wherein the hard-particles are Co-based intermetallic compound particles or Fe-based intermetallic compound particles having the Vickers hardness HVof from 500 to 1200 HV.3. The valve seat insert for internal combustion engine according to claim 2 , wherein the Co-based ...

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Номер записи: 91
13-12-2018 дата публикации

GRAPHENE ENHANCED ELASTOMERIC STATOR

Номер: US20180355863A1
Автор: Sicilian Joshua Alan
Принадлежит:

An enhanced elastomeric stator assembly and method of making the same is disclosed. The elastomeric stator may be structurally, thermally, and/or chemically enhanced through the incorporation of graphene particles, cross-linkable polymers, coupling agents that extend cross-links, and by the reduction of filler material. The graphene particles can be incorporated in functionalized or non-functionalized form or in a combination thereof, the functionalized graphene increasing the number of cross-links in the overall structure, thereby enhancing the structural robustness of the elastomeric stator. The compound can be formulated to have a relatively low viscosity and other characteristics that allow the material to flow through a mould cavity. 1. A method of forming a graphene enhanced elastomeric stator , wherein the method includes the following steps:forming a metal outer tubular of the stator, andforming a graphene enhanced elastomeric stator inner liner, wherein the forming of an elastomeric material of the inner liner comprises adding a co-agent to an elastomeric material mixture to bridge peroxide induced cross-links.2. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises maleinized polybutadiene.3. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises metal methacrylate organic salts.4. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises trifunctional acrylic esters.5. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises non-nitroso functionalized co-agent monomers.6. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises butylene glycol dimethacrylate.7. The method of forming a graphene enhanced elastomeric stator of wherein the co-agent comprises trimethylopropane triacrylate.8. The method of forming a graphene enhanced elastomeric stator of wherein the co- ...

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Номер записи: 92
05-12-2019 дата публикации

PUMP SEALING

Номер: US20190368489A1
Автор: Holbrook Alan Ernest Kinnaird, Schofield Nigel Paul
Принадлежит:

A pump assembly may include a rotor having a rotor shaft portion; a stator having a bore portion defining a bore for receiving the rotor shaft portion; and a circumferential protrusion extending radially into the bore between the bore portion and the rotor shaft portion, wherein at least one of the protrusion and a corresponding surface of the rotor shaft portion or the bore portion is configured to be abraded by the other upon experiencing contact therewith. In this way, the gap between the bore portion and the rotor shaft portion may be at least partially filled by the circumferential protrusion in order to provide a seal. The protrusion and one of the bore portion and the rotor shaft portion may be formed from different hardness materials. 1. A pump assembly comprising:a rotor having a rotor shaft portion;a stator having a bore portion defining a bore for receiving the rotor shaft portion; anda circumferential protrusion extending radially into the bore between the bore portion and the rotor shaft portion, wherein at least one of the circumferential protrusion and a corresponding surface of the rotor shaft portion or the bore portion is configured to be abraded by the other upon experiencing contact therewith.2. The pump assembly of claim 1 , wherein the protrusion and one of the bore portion or the rotor shaft portion are formed from different hardness materials.3. The pump assembly of claim 2 , wherein contact between the circumferential protrusion and the one of the bore portion or the rotor shaft portion abrades the softer material.4. The pump assembly of claim 1 , wherein one of the circumferential protrusion or the rotor shaft portion is harder than another of the bore portion and the circumferential protrusion.5. The pump assembly of claim 1 , wherein the circumferential protrusion is unitary with one of the bore portion or the rotor shaft portion.6. The pump assembly of claim 1 , wherein the circumferential protrusion upstands from one of the bore portion ...

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Номер записи: 93
19-12-2019 дата публикации

COMPRESSOR SYSTEM WITH PURGE GAS SYSTEM

Номер: US20190383290A1
Автор: Collins James Christopher
Принадлежит:

A compressor system includes a compressor having a rotor; a bearing supporting the rotor, wherein the bearing is disposed in a bearing cavity; and wherein the bearing has a near frictionless coating; and a purge gas system in fluid communication with the bearing cavity and constructed to purge air from the bearing cavity and supply the bearing cavity with the purge gas during operation of the compressor. The purge gas can be nitrogen and the near frictionless coating can be a near-frictionless diamond-like carbon coating. 1. A system operative to flow a working fluid , comprising:a bearing system disposed in a bearing cavity, the bearing system having a first surface that moves relative to a second surface, the first and second surfaces having a near frictionless diamond-like carbon (NFDLC) coating, the coating constructed to cause the first and second surfaces to repel each other; anda purge gas system in fluid communication with the bearing cavity and constructed to generate a purge gas from the working fluid, the purge gas being compositionally different than the working fluid, the purge gas system being constructed to purge the bearing cavity and supply the bearing cavity with the purge gas during operation of the system, wherein the purge gas has a nitrogen content greater than that of the working fluid.2. The system of claim 1 , wherein the purge gas system includes a purge gas storage tank in fluid communication with the bearing cavity.3. The system of claim 2 , wherein the working fluid is air claim 2 , and wherein the purge gas includes nitrogen; further comprising a nitrogen generator constructed to generate the purge gas from the air.4. The system of claim 3 , wherein the system includes a compressor having a rotor operative to compress air as the working fluid claim 3 , the nitrogen generator being in fluid communication with the compressor and constructed to generate the nitrogen from compressed air received from the compressor.5. The system of further ...

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Номер записи: 94
01-04-2010 дата публикации

Reciprocating piston combustion engine

Номер: US20100077984A1
Автор: Helmut Betzmeir, Rupert Baindl
Принадлежит: Neander Motors AG

A reciprocating piston combustion engine with at least one cylinder ( 2 ) in which a piston ( 1 ) is located, so it can be moved in a reciprocating manner; a first crankshaft ( 4 ); a second crankshaft ( 6 ); wherein the first crankshaft ( 4 ) and the second crankshaft ( 6 ) extend parallel to each other and rotate synchronously in opposite directions; wherein the rotation axes (X, X′) of the two crankshafts ( 4, 6 ) extend parallel to a common cylinder midplane (Z) and laterally offset relative to it; wherein a first piston rod and second piston rod ( 3, 5 ) are arranged at the reciprocating piston ( 1 ), so that the first piston rod ( 3 ) is pivotably connected to the to the reciprocating piston ( 1 ) with its first end and rotatably connected to a crankpin ( 40 ) of the first crankshaft ( 4 ), and that the second piston rod ( 5 ) is pivotably connected with its first end to the reciprocating piston ( 1 ), and rotatably connected to the crankpin ( 60 ) of the second crankshaft ( 6 ) with its second end, and wherein the crankshafts ( 4, 6 ) are engaged with each other through synchronizing gears ( 42, 62 ), is characterized in, that the two crankshafts ( 4, 6 ) are supported in at least one common bearing block ( 7; 107; 207 ); that the bearing block ( 7, 107, 207 ) is made of a material with a first thermal expansion coefficient, that the synchronizing gears ( 42, 62 ) are made of a material with a second thermal expansion coefficient, and that the dimensions in the radial direction of the bearing block ( 7; 107; 207 ) and of the synchronizing gears ( 42, 62 ), and the first and the second thermal expansion coefficients, are matched in such a manner, that the thermal expansion of the bearing block ( 7; 107; 207 ) occurring between the two rotation axes (X, X′) of the bearing block ( 7; 107; 207 ) is substantial equal to the thermal expansion of the synchronizing gears ( 42, 62 ).

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Номер записи: 95
14-06-2018 дата публикации

Chamber pump and method for operating a chamber pump

Номер: DE102016014832A1
Автор: Hans-Ullrich Hansmann
Принадлежит: Draegerwerk AG and Co KGaA

Die Erfindung ist eine Kammerpumpe (10) und ein Verfahren zu deren Betrieb, wobei die Kammerpumpe (10), die eine Pumpenkammer (12), eine Kammermembran (14) oder einen Kolben (34) sowie eine zum Verändern des Volumens der Pumpenkammer (12) an der Kammermembran (14) oder dem Kolben (34) angreifende und axial bewegliche Treibstange (24) umfasst, sich dadurch auszeichnet, dass diese eine als Aktor zur Beeinflussung einer axialen Position der Treibstange (24) fungierende und einerseits an der Treibstange (24) sowie andererseits an einem Gehäuse der Pumpe (10) angreifende elektroaktive Membran (40, 40') umfasst und dass beim Betrieb der Kammerpumpe (10) die elektroaktive Membran (40, 40') zur Beeinflussung einer axialen Position der Treibstange (24) und zum Erhalt eines Rückhubs oder eines Vorhubs der Kammerpumpe (10) mit einem elektrischen Potential beaufschlagt wird. The invention is a chamber pump (10) and a method of operation thereof, the chamber pump (10) having a pump chamber (12), a chamber diaphragm (14) or a piston (34) and a volume for changing the volume of the pump chamber (12 ) on the chamber membrane (14) or the piston (34) engaging and axially movable drive rod (24), characterized in that it acts as an actuator for influencing an axial position of the drive rod (24) and on the one hand on the drive rod (24 ) and on the other hand on a housing of the pump (10) attacking electroactive membrane (40, 40 ') and that during operation of the chamber pump (10), the electroactive diaphragm (40, 40') for influencing an axial position of the drive rod (24) and to receive a return stroke or a Vorhubs the chamber pump (10) is acted upon by an electric potential.

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Номер записи: 96
10-11-2022 дата публикации

SEATING ASSEMBLY FOR A VEHICLE

Номер: US20220355717A1
Автор: Arnold Katherine Ann, Line Johnathan Andrew, Mandelbaum Dylan, Medoro Michael Steven, Moua Jimmy, Selvasekar Siddharthan, Senatore Andres Almeida
Принадлежит: FORD GLOBAL TECHNOLOGIES, LLC

A seating assembly comprises a calf rest coupled to a seat base and having a body that comprises a first trough that extends from a first exterior peak to an interior peak and a second trough that extends from a second exterior peak to the interior peak. The seating assembly also comprises a wire that extends across the first trough from the first exterior peak to the interior peak, the wire being operable between an at rest condition and a contracted condition, wherein movement of the wire from the at rest condition to the contracted condition moves a portion of the wire between the first exterior peak and the interior peak away from a bottom of the first trough. The seating assembly further comprises a controller that prompts electrical current to be supplied to the wire to move the wire from the at rest condition to the contracted condition. 1. A seating assembly , comprising:a seat base;a seatback coupled to the seat base; a first trough that extends from a first exterior peak to an interior peak; and', 'a second trough that extends from a second exterior peak to the interior peak;, 'a calf rest coupled to the seat base and having a body that comprisesa wire that extends across the first trough from the first exterior peak to the interior peak, the wire being operable between an at rest condition and a contracted condition, wherein movement of the wire from the at rest condition to the contracted condition moves a portion of the wire between the first exterior peak and the interior peak away from a bottom of the first trough; anda controller that prompts electrical current to be supplied to the wire to move the wire from the at rest condition to the contracted condition.2. The seating assembly of claim 1 , wherein the wire further extends across the second trough from the interior peak to the second exterior peak.3. The seating assembly of claim 1 , wherein a height of the interior peak relative to the bottom of the first trough is greater than a height of the ...

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Номер записи: 97
07-10-2004 дата публикации

Pump having shape memory actuator and fuel cell system including the same

Номер: US20040197214A1
Автор: Alan Arthur, Gary Watts
Принадлежит: Hewlett Packard Development Co LP

A pump having a shape memory actuator and a fuel cell system including the same.

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Номер записи: 98
03-04-2007 дата публикации

Pump having shape memory actuator and fuel cell system including the same

Номер: US7198474B2
Автор: Alan R Arthur, Gary J. Watts
Принадлежит: Hewlett Packard Development Co LP

A pump having a linearly movable shaft, a rotatable hub operably connected to the shaft, and shape memory actuator operably connected to the rotatable hub, and a fuel cell system including the same.

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Номер записи: 99
22-03-2006 дата публикации

Pump and fuel cell

Номер: EP1467096A3
Автор: Alan R. Arthur, Gary J. Watts
Принадлежит: Hewlett Packard Development Co LP

A pump (100, 200) having a shape memory actuator (156, 256) and a fuel cell system (300) including the same are disclosed. The pump may include a movable structure (126, 128, 226, 228) configured to impart motion to a fluid; a linearly movable shaft (130, 230) operably connected to the movable structure (126, 128, 226, 228); a rotatable hub (132, 232) operably connected to the linearly movable shaft (130, 230) such that rotation of the rotatable hub (132, 232) moves the linearly movable shaft (130, 230) linearly; and a shape memory actuator (156, 256) that rotates the hub (132, 232) when actuated. In another embodiment the pump includes a movable structure (126, 128, 226, 228) configured to impart motion to a fluid; a hub (132, 232) operably connected to the movable structure (126, 128, 226, 228) such that rotation of the hub (132, 232) results in movement of the movable structure (126, 128, 226, 228), the hub (132, 232) being rotatable in a first direction and a second direction; a biasing device (154, 254), operably connected to the rotatable hub (132, 232), operable to apply a biasing force in the first direction to the hub (132, 30 232); and shape memory material (158, 160, 258, 260), operably connected to the rotatable hub (132, 232), and configured to stretch in the first direction under the biasing force when in a martensite phase and to recover strain and rotate the hub (132, 232) in the second direction when in an austenite phase.

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Номер записи: 100