US20200208883A1 - Stirling-cycle cooling device with external rotor motor - Google Patents

Stirling-cycle cooling device with external rotor motor Download PDF

Info

Publication number
US20200208883A1
US20200208883A1 US16/728,740 US201916728740A US2020208883A1 US 20200208883 A1 US20200208883 A1 US 20200208883A1 US 201916728740 A US201916728740 A US 201916728740A US 2020208883 A1 US2020208883 A1 US 2020208883A1
Authority
US
United States
Prior art keywords
link
axis
stator
drive shaft
bearing surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US16/728,740
Other languages
English (en)
Inventor
Mikel SACAU
Jean-Yves Martin
Julien LE BORDAYS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Thales SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thales SA filed Critical Thales SA
Assigned to THALES reassignment THALES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LE BORDAYS, Julien, MARTIN, JEAN-YVES, SACAU, Mikel
Publication of US20200208883A1 publication Critical patent/US20200208883A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/044—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines having at least two working members, e.g. pistons, delivering power output
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/055—Heaters or coolers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F02G1/057—Regenerators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
    • F04B1/14—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having stationary cylinders
    • F04B1/141—Details or component parts
    • F04B1/146—Swash plates; Actuating elements
    • F04B1/148—Bearings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/006—Crankshafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/12—Stationary parts of the magnetic circuit
    • H02K1/18—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
    • H02K1/187—Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures to inner stators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K1/00—Details of the magnetic circuit
    • H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22—Rotating parts of the magnetic circuit
    • H02K1/27—Rotor cores with permanent magnets
    • H02K1/2786—Outer rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/003—Couplings; Details of shafts
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/08—Structural association with bearings
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/18—Structural association of electric generators with mechanical driving motors, e.g. with turbines
    • H02K7/1807—Rotary generators
    • H02K7/1815—Rotary generators structurally associated with reciprocating piston engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2244/00—Machines having two pistons
    • F02G2244/50—Double acting piston machines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2270/00—Constructional features
    • F02G2270/10—Rotary pistons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/001—Gas cycle refrigeration machines with a linear configuration or a linear motor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/003—Gas cycle refrigeration machines characterised by construction or composition of the regenerator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2327/00—Refrigeration system using an engine for driving a compressor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
    • H02K7/1012—Machine arranged inside the pulley
    • H02K7/1016—Machine of the outer rotor type

Definitions

  • the invention relates to a cooling device implementing a reverse Stirling-type thermodynamic cycle.
  • a cooling device implementing a reverse Stirling-type thermodynamic cycle.
  • Cooling is achieved by means of a coolant fluid circulating in a circuit comprising, principally, a compressor and a regenerator used as heat exchanger.
  • the compressor comprises a piston that is movable in translation in a cylinder.
  • the regenerator comprises a regeneration piston that is likewise movable in a second cylinder.
  • the regenerator is sometimes called: “displacer”.
  • the two pistons are each driven by a connecting rod/crank arm, both actuated by a crankshaft.
  • the crankshaft is driven in rotation by a rotary motor.
  • the reverse Stirling cycle comprises the following four phases:
  • an internal rotor electric motor to drive the crankshaft.
  • This type of motor is generally composed of an external stator and an internal rotor. More precisely, the stator has windings assembled in the form of a tube generating, inside the tube, a turning magnetic field.
  • the rotor may have permanent magnets or windings.
  • the rotor is arranged inside the stator and turns by engaging with the magnetic field generated by the stator.
  • Control of the electric motor makes it possible to adapt to these variations in torque but gives rise to electrical performance losses not only for the motor itself but also for the electronic device that controls it.
  • Variations in toque give rise to variations in voltage and current in the electrical supply to the motor, potentially creating electromagnetic disturbances.
  • the variations in torque give rise to oscillations of the angular speed of the motor and of the crankshaft. These speed oscillations generate vibrations that may degrade the acoustic signature of the cooling device and potentially give rise to accelerated mechanical fatigue of the various components of the device.
  • the invention aims to palliate all or some of the problems cited above by implementing an external rotor drive.
  • the external rotor drive by construction exhibits a moment of inertia about its axis of rotation that is greater than in the case of an internal rotor configuration. In such a case it is thus possible to envisage being able to dispense with a flywheel.
  • an external rotor motor may generate a torque greater than that of an internal rotor motor.
  • the use of an external rotor motor thus makes it possible to facilitate the miniaturization of the cooling device.
  • a permanent magnet rotor motor the magnets are arranged as close as possible to the stator.
  • An internal rotor motor presents the risk of detachment of the magnets during rotation of the motor owing to the centrifugal force that tends to tear the magnets from their support.
  • an external rotor motor comprising magnets
  • the latter tend to be pressed against the bottom of their housing, thereby avoiding the implementation of specific means for holding the magnets, such as specific magnet holding rings.
  • such holding means tend also to increase the gap between the rotor and the stator, which gives rise to a drop in the performance of the motor.
  • a subject of the invention is a Stirling-cycle cooling device comprising a compressor with a reciprocal piston driven by an electric motor rotating about an axis via a crankshaft, wherein the electric motor comprises an internal stator and an external rotor and wherein the internal stator is connected to the crankshaft via a link with at least one degree of freedom in rotation about the axis of the electric motor.
  • the internal stator has a solid cylindrical form extending along the axis of the electric motor.
  • the stator has a cylindrical form comprising an axial opening and extending along the axis and wherein a drive shaft integral with the external rotor can turn.
  • the axial opening partially or completely may traverse the stator.
  • the external rotor is advantageously integral with a drive shaft carried by the link with at least one degree of freedom in rotation and the link with at least one degree of freedom in rotation is produced in two parts each arranged on one side of the motor along the axis.
  • Each of the parts is, for example, formed by a bearing.
  • a housing of the device advantageously comprises a tubular bearing surface extending along the axis, partially or completely traversing the stator, which is fixed on the exterior of the tubular bearing surface.
  • the drive shaft extends inside the tubular bearing surface and the link with at least one degree of freedom in rotation connects the interior of the tubular bearing surface and the drive shaft.
  • the device advantageously comprises a monoblock body integral with the stator.
  • the link with at least one degree of freedom in rotation along the axis connects the monoblock body and a drive shaft integral with the rotor and the piston of the compressor moves in a cylinder formed in the monoblock body.
  • the body advantageously comprises the tubular bearing surface.
  • the rotor is integral with a drive shaft advantageously comprising a bearing surface extending along the axis and integral with the crankshaft, a tube segment inside which is fixed the rotor and a web connecting the tube segment and the bearing surface.
  • the motor is advantageously arranged between the body and the web.
  • the kinematic link with at least one degree of freedom in rotation along the axis comprises a link or a link assembly amongst:
  • FIG. 3 shows a variant embodiment of the drive function of the refrigeration device implementing the first embodiment of an external rotor motor
  • FIG. 8 shows a fifth variant embodiment of the drive function implementing the second embodiment of an external rotor motor
  • FIG. 9 shows a sixth variant embodiment of the drive function implementing the second embodiment of an external rotor motor
  • the motor 10 comprises a rotor 20 produced in the form of an axisymmetrical tube about the axis 14 .
  • the rotor 20 is arranged radially about the stator 12 .
  • the rotor 20 may comprise windings or permanent magnets designed to engage with the magnetic field generated by the stator windings.
  • the use of permanent magnets makes it possible to dispense with the implementation of turning contacts, such as brushes or carbon brushes, for powering the rotor windings.
  • FIG. 1 c shows the association of an annular linear link 26 and a ball link 28 for connecting the rotor 20 to the housing 16 .
  • the degree of freedom in translation of the annular linear link 26 is along the axis 14 . This degree of freedom is eliminated by the ball link 28 .
  • the cover 62 also comprises a tubular part 66 extending in the extension of the tubular section 64 and fixed thereto.
  • the cover 62 comprises a flank 68 extending perpendicularly to the axis 14 .
  • the flank 68 closes the tubular part 66 .
  • the tubular section 64 may extend as far as the flank 68 .
  • the tubular part 66 disappears.
  • the tubular section 64 may disappear and the tubular part 66 thus extends as far as the part of the body 60 that is configured to support the compressor. More generally, the body 60 and the cover 62 form a shell of the motor 10 .
  • the drive shaft 70 turning about the axis 40 emerges from this shell.
  • This translational movement may be produced by leaving one ring of one of the two bearings free in rotation.
  • the assembly may fulfill the function of the link shown in FIG. 1 c.
  • the bearings 80 and 94 are arranged on either side of the motor 50 along the axis 14 , which makes it possible better to separate them and to properly distribute the radial forces exerted by the motor 50 on the drive shaft 91 , avoiding the cantilever of the rotor 20 .
  • the bearings 80 and 94 shown in FIGS. 4 and 5 may be ball bearings, (straight or tapered) roller bearings, or needle bearings. It is also possible to replace them with journals or any other component that provides at least one degree of freedom in rotation about the axis 14 and, notably, the various kinematic links shown in FIGS. 2 a to 2 h.
  • FIG. 5 shows an alternative, proposing fixing the stator 52 to the cover 62 via the opening 54 .
  • the cover 62 comprises a tubular bearing surface 98 extending along the axis 14 .
  • the stator 52 is fixed on the exterior of the tubular bearing surface 98 and the bearing surface 93 extends inside the tubular bearing surface 98 as far as the bearing 94 .
  • the tubular bearing surface 98 completely traverses the opening 54 of the stator 52 .
  • FIG. 7 shows a variant of FIG. 6 , in which the two bearings 80 and 94 are both arranged between the cover 62 and the drive shaft 91 and, more precisely, between the tubular bearing surface 98 and the bearing surface 93 .
  • the axis of movement of the regeneration piston 124 is perpendicular to the axis of movement of the piston 102 of the compressor 100 . It is also possible to produce a cooling device according to the invention with other relative orientations of the two axes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Cooling System (AREA)
US16/728,740 2018-12-28 2019-12-27 Stirling-cycle cooling device with external rotor motor Abandoned US20200208883A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1874264A FR3091339B1 (fr) 2018-12-28 2018-12-28 Dispositif de refroidissement à cycle Stirling avec moteur à rotor externe
FR1874264 2018-12-28

Publications (1)

Publication Number Publication Date
US20200208883A1 true US20200208883A1 (en) 2020-07-02

Family

ID=67587803

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/728,740 Abandoned US20200208883A1 (en) 2018-12-28 2019-12-27 Stirling-cycle cooling device with external rotor motor

Country Status (6)

Country Link
US (1) US20200208883A1 (fr)
EP (1) EP3674625B1 (fr)
CN (1) CN111379685B (fr)
FR (1) FR3091339B1 (fr)
IL (1) IL271693B2 (fr)
SI (1) SI3674625T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220087110A1 (en) * 2020-09-24 2022-03-24 Yamabiko Corporation Hedge trimmer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911618A (en) * 1988-06-16 1990-03-27 Mitsubishi Denki Kabushiki Kaisha Cryocompressor with a self-centering piston
US20100244444A1 (en) * 2009-03-06 2010-09-30 Christian Appel Communal heating and power station unit having a reciprocating internal combustion engine and having an electrical machine
US20180291914A1 (en) * 2017-04-07 2018-10-11 Nidec Corporation Fan motor
US20190363591A1 (en) * 2017-01-18 2019-11-28 Siemens Aklisngesellschaft Support structure for a laminated core of a stator segment

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4389849A (en) * 1981-10-02 1983-06-28 Beggs James M Administrator Of Stirling cycle cryogenic cooler
US4365982A (en) 1981-12-30 1982-12-28 The United States Of America As Represented By The Secretary Of The Army Cryogenic refrigerator
JPH09170491A (ja) * 1995-12-21 1997-06-30 Sanyo Electric Co Ltd 熱ガス機関
DE19618865C2 (de) * 1996-05-10 2002-08-08 Zf Sachs Ag Antriebsanordnung für ein Hybridfahrzeug
BR102014006547B1 (pt) * 2014-03-19 2022-10-11 Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda Compressor alternativo de refrigeração e método de montagem de um compressor alternativo de refrigeração
FR3033630B1 (fr) * 2015-03-13 2017-04-07 Thales Sa Refroidisseur stirling avec entrainement flexible du regenerateur
GB2545411B (en) * 2015-12-11 2020-12-30 Univ Of Northumbria A rotary stirling-cycle apparatus and method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4911618A (en) * 1988-06-16 1990-03-27 Mitsubishi Denki Kabushiki Kaisha Cryocompressor with a self-centering piston
US20100244444A1 (en) * 2009-03-06 2010-09-30 Christian Appel Communal heating and power station unit having a reciprocating internal combustion engine and having an electrical machine
US20190363591A1 (en) * 2017-01-18 2019-11-28 Siemens Aklisngesellschaft Support structure for a laminated core of a stator segment
US20180291914A1 (en) * 2017-04-07 2018-10-11 Nidec Corporation Fan motor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220087110A1 (en) * 2020-09-24 2022-03-24 Yamabiko Corporation Hedge trimmer

Also Published As

Publication number Publication date
EP3674625A1 (fr) 2020-07-01
FR3091339A1 (fr) 2020-07-03
IL271693B1 (en) 2023-06-01
CN111379685B (zh) 2023-05-30
EP3674625B1 (fr) 2021-04-21
SI3674625T1 (sl) 2021-07-30
IL271693A (en) 2020-06-30
FR3091339B1 (fr) 2021-01-01
CN111379685A (zh) 2020-07-07
IL271693B2 (en) 2023-10-01

Similar Documents

Publication Publication Date Title
US5522214A (en) Flexure bearing support, with particular application to stirling machines
US4697113A (en) Magnetically balanced and centered electromagnetic machine and cryogenic refrigerator employing same
US5779455A (en) Device for guiding and centering a machine component
JP2518671Y2 (ja) 冷却機用ガスサイクル機関
JP5871801B2 (ja) フリーピストン・スターリング・サイクル機関の軸受支持機構
US7017344B2 (en) Machine spring displacer for Stirling cycle machines
US8978595B2 (en) Piston engine having magnetic piston bearing
US10876524B2 (en) Linear compressor
US6846167B2 (en) Turbocharger with magnetic bearing system that includes dampers
JPH0626456A (ja) オイルフリーリニアモータ圧縮機、及びオイルフリーリニア圧縮機を用いてガスを圧縮する方法
US20200208883A1 (en) Stirling-cycle cooling device with external rotor motor
US20060283186A1 (en) Stirling cycle machines
US3274795A (en) Fluid operating apparatus
CN111379689B (zh) 具有单体式支撑件的斯特林循环式冷却装置
WO1990012961A1 (fr) Machine a cycle de stirling et compresseur utilise dans une telle machine
JP3806730B2 (ja) フリーピストン型スターリングエンジン
US6865887B2 (en) Stirling engine
JP2713675B2 (ja) 冷却機
EP0324516B1 (fr) Machine à piston et cryogénérateur muni d'une telle machine à piston
CN109538725A (zh) 动态减振装置
US20220154824A1 (en) Springs for piston ring biasing
SU1413382A1 (ru) Газова холодильна машина
Breckenridge Jr A 3.6 K reciprocating refrigerator
JP2023510088A (ja) 軸流モータを備えた密閉型レシプロコンプレッサ
SU1048150A1 (ru) Силова установка

Legal Events

Date Code Title Description
AS Assignment

Owner name: THALES, FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SACAU, MIKEL;MARTIN, JEAN-YVES;LE BORDAYS, JULIEN;REEL/FRAME:051429/0325

Effective date: 20200106

STPP Information on status: patent application and granting procedure in general

Free format text: APPLICATION DISPATCHED FROM PREEXAM, NOT YET DOCKETED

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STPP Information on status: patent application and granting procedure in general

Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION