WO2006100486A1 - Apparatus for use as a heat pump - Google Patents

Apparatus for use as a heat pump Download PDF

Info

Publication number
WO2006100486A1
WO2006100486A1 PCT/GB2006/001059 GB2006001059W WO2006100486A1 WO 2006100486 A1 WO2006100486 A1 WO 2006100486A1 GB 2006001059 W GB2006001059 W GB 2006001059W WO 2006100486 A1 WO2006100486 A1 WO 2006100486A1
Authority
WO
WIPO (PCT)
Prior art keywords
piston
compression
expansion
gas
valve
Prior art date
Application number
PCT/GB2006/001059
Other languages
French (fr)
Other versions
WO2006100486A9 (en
Inventor
Jonathan Sebastian Howes
James Macnaghten
Original Assignee
Jonathan Sebastian Howes
James Macnaghten
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 Jonathan Sebastian Howes, James Macnaghten filed Critical Jonathan Sebastian Howes
Priority to US11/886,982 priority Critical patent/US8113011B2/en
Priority to AT06726480T priority patent/ATE488738T1/en
Priority to EP06726480A priority patent/EP1872069B8/en
Priority to DE602006018276T priority patent/DE602006018276D1/en
Priority to CA2601811A priority patent/CA2601811C/en
Priority to JP2008502473A priority patent/JP4829958B2/en
Publication of WO2006100486A1 publication Critical patent/WO2006100486A1/en
Publication of WO2006100486A9 publication Critical patent/WO2006100486A9/en
Priority to US13/347,350 priority patent/US8833101B2/en

Links

Classifications

    • 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
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Central Heating Systems (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Compressor (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)

Abstract

Apparatus (10') for use as a heat pump comprising: compression chamber means (40'); inlet means (30') for allowing gas to enter the compression chamber means; compression means (60') for compressing gas contained in the compression chamber means; heat exchanger means for receiving thermal energy from gas compressed by the compression means; expansion chamber means (124') for receiving gas after exposure to the heat exchange means; expansion means (120') for expanding gas received in the expansion chamber means; and exhaust means (100') for venting gas from the expansion chamber means after expansion thereof.

Claims

Claims :
1. Apparatus for use as a heat pump comprising: compression chamber means; inlet means for allowing gas to enter the compression chamber means; compression means for compressing gas contained in the compression chamber means; heat exchanger means for receiving thermal energy from gas compressed by the compression means,- expansion chamber means for receiving gas after exposure to the heat exchange means; expansion means for expanding gas received in the expansion chamber means; and exhaust means for venting gas from the expansion chamber means after expansion thereof.
2. Apparatus according to claim 1, wherein the gas is air.
3. Apparatus according to claim 1 or claim 2, wherein the compression means comprises compression piston means for compressing gas contained in the compression chamber means, the compression piston means being moveable between a first position and second position, with compression of gas contained in the compression chamber means occurring as the compression piston means moves from the first position to the second position.
4. Apparatus according to claim 3, wherein the compression piston means has an effective piston diameter to piston stroke length ratio of at least 2:1.
5. Apparatus according to claim 4, wherein the effective piston diameter to piston stroke length ratio is at least
3:1.
6. Apparatus according to claim 5, wherein the effective piston diameter to piston stroke length ratio is at least 4:1.
7. Apparatus according to any of claims 3 to 6, wherein the compression piston means comprises a compression piston aperture with a compression delivery valve for allowing gas to pass through the compression piston means from the compression chamber means to the heat exchanger means .
8. Apparatus according to claim 7, wherein the compression piston aperture is located on a working face of the compression piston means.
9. Apparatus according to claim 7 or claim 8, wherein the compression delivery valve is configured to seal the compression piston aperture as the compression piston means starts to move from the first position to the second position.
10. Apparatus according to claim 9, wherein the compression delivery valve is configured to open before the compression piston means reaches the second position.
11. Apparatus according to any of claims 7 to 10, wherein the compression delivery valve is pressure-activated.
12. Apparatus according to claim 11, wherein the compression delivery valve is configured to open when gas pressure in the compression chamber means is equal to or greater than gas pressure within the heat exchange means to allow delivery of compressed gas to thereto.
13. Apparatus according to any of claims 7-12, wherein the compression delivery valve is selected from the group of: a ball valve; a plate valve; a reed valve; and a rotary valve.
14. Apparatus according to any of the preceding claims, wherein the expansion means comprises expansion piston means, the expansion piston means being moveable between a first position and a second position, with expansion of gas contained in the expansion chamber means occurring as the gas does work to help move the expansion piston means from the first position to the second position.
15. Apparatus according to claim 14, wherein the expansion piston means has an effective piston diameter to piston stroke length ratio of at least 2:1.
16. Apparatus according to claim 15, wherein the effective piston diameter to piston stroke length ratio is at least 3:1.
17. Apparatus according to claim 16, wherein the 5 effective piston diameter to piston stroke length ratio is at least 4:1.
18. Apparatus according to any of claims 14 to 17, wherein the expansion piston means comprises an expansion piston aperture with an expansion inlet valve for allowing
10 gas to pass through the expansion piston means from the heat exchanger means to the expansion chamber means .
19. Apparatus according to claim 18, wherein the expansion piston aperture is located on a working face of the expansion piston means.
15 20. Apparatus according to claim 18 or claim 19, wherein the expansion inlet valve is configured to allow gas to flow through the expansion piston aperture as the compression piston means moves into the first position.
21. Apparatus according to any of claims 18 to 20,
20 wherein the expansion inlet valve is selected from the group of: a plate valve; and a rotary valve.
22. Apparatus according to any of claims 3-21, wherein the compression piston means comprises a single compression piston.
25 23. Apparatus according to any of claims 14-22, wherein the expansion piston means comprises a single expansion piston.
24. Apparatus according to claim 23 (when dependent upon claim 22) , wherein the expansion piston is configured to
30 move in sympathy with the compression piston.
25. Apparatus according to claim 24, wherein the compression piston and the expansion piston are connected together by a mechanical linkage.
26. Apparatus according to claim 25, wherein the 35 mechanical linkage comprises one or more struts.
27. Apparatus according to claim 26, further comprising a stiffening structure for bracing the one or more struts.
28. Apparatus according to any of claims 3 to 21, wherein the compression piston means comprises a plurality of compression pistons.
29. Apparatus according to claim 28, wherein two or more 5 of the plurality of compression pistons are configured to move out of phase with one another.
30. Apparatus according to claim 28 or claim 29, wherein the plurality of compression pistons are laterally spaced along an axis .
10 31. Apparatus according to claim 28 or 29, wherein the plurality of compression pistons are spaced circumferentially around a central axis.
32. Apparatus according to claim 31, wherein the compression pistons means comprises a pair of
15 diametrically opposed compression pistons configured to operate in anti-phase.
33. Apparatus according to any of claims 28-32, wherein the compression chamber means comprises a plurality of discrete compression chambers, each associated with a
20 respective compression piston.
34. Apparatus according to any of claims 28-32, wherein the expansion piston means comprises a plurality of expansion pistons.
35. Apparatus according to claim 34, wherein each 25 expansion piston is configured to move in sympathy with a respective compression piston.
36. Apparatus according to claim 35, wherein the expansion piston and its respective compression piston are connected by a mechanical linkage.
30 37. Apparatus according to claim 34, wherein the expansion piston means comprises a pair of diametrically opposed compression pistons configured to operate in antiphase.
38. Apparatus according to any of the preceding claims,
35 wherein the compression means and the expansion means are spaced from one another to define a chamber therebetween, and the heat exchanger means is located outside of the chamber .
39. Apparatus according to claim 20, wherein the rotary valve comprises a plate rotatably coupled to a face of the expansion piston, the plate comprising at least one
5 aperture for registering with the expansion piston aperture of the expansion piston, the plate being rotatable relative to the piston between a first position in which the aperture on the plate and expansion piston are registered and a second position in which the 10 apertures are no longer registered.
40. Apparatus according to claim 39, wherein the rotary valve further comprises spacing means for varying spacing between the plate and the face of the expansion piston during valve operation.
15 41. Apparatus according to claim 40, wherein the spacing means comprises a the member configured to engage a tapered profile, the direction of the taper being such as to cause separation of the plate and piston face as the plate moves from the second position to the first position
20 42. Apparatus according to claim 41, wherein the member is configured to rotate when the plate rotates relative to the piston face.
43. Apparatus according to claim 41 or claim 42, wherein the tapered profile comprises a tapered groove.
25 44. A refrigerator comprising the apparatus as defined in any of claims 1-43.
45. A heat engine comprising the apparatus as defined in any of claims 1-43.
PCT/GB2006/001059 2005-03-23 2006-03-23 Apparatus for use as a heat pump WO2006100486A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US11/886,982 US8113011B2 (en) 2005-03-23 2006-03-23 Apparatus for use as a heat pump
AT06726480T ATE488738T1 (en) 2005-03-23 2006-03-23 DEVICE FOR USE AS A HEAT PUMP
EP06726480A EP1872069B8 (en) 2005-03-23 2006-03-23 Apparatus for use as a heat pump
DE602006018276T DE602006018276D1 (en) 2005-03-23 2006-03-23 DEVICE FOR USE AS HEAT PUMP
CA2601811A CA2601811C (en) 2005-03-23 2006-03-23 Apparatus for use as a heat pump
JP2008502473A JP4829958B2 (en) 2005-03-23 2006-03-23 Equipment, refrigerators and heat engines used as heat pumps
US13/347,350 US8833101B2 (en) 2005-03-23 2012-01-10 Apparatus for use as a heat pump

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0506006.6A GB0506006D0 (en) 2005-03-23 2005-03-23 Apparatus for use as a heat pump
GB0506006.6 2005-03-23

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US11/886,982 A-371-Of-International US8113011B2 (en) 2005-03-23 2006-03-23 Apparatus for use as a heat pump
US13/347,350 Continuation US8833101B2 (en) 2005-03-23 2012-01-10 Apparatus for use as a heat pump

Publications (2)

Publication Number Publication Date
WO2006100486A1 true WO2006100486A1 (en) 2006-09-28
WO2006100486A9 WO2006100486A9 (en) 2007-03-08

Family

ID=34531769

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/001059 WO2006100486A1 (en) 2005-03-23 2006-03-23 Apparatus for use as a heat pump

Country Status (9)

Country Link
US (2) US8113011B2 (en)
EP (4) EP2256436A3 (en)
JP (3) JP4829958B2 (en)
CN (3) CN100575814C (en)
AT (1) ATE488738T1 (en)
CA (1) CA2601811C (en)
DE (1) DE602006018276D1 (en)
GB (1) GB0506006D0 (en)
WO (1) WO2006100486A1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009074800A1 (en) * 2007-12-11 2009-06-18 Isentropic Limited Valve
WO2013124616A2 (en) 2012-02-22 2013-08-29 Isentropic Ltd Improvements in or relating to screen valves
GB2501476A (en) * 2012-04-23 2013-10-30 Isentropic Ltd A piston assembly
US8656712B2 (en) 2007-10-03 2014-02-25 Isentropic Limited Energy storage
SE2000219A1 (en) * 2020-11-19 2022-05-20 Mats Hedman Method and device for heating and cooling

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10094219B2 (en) 2010-03-04 2018-10-09 X Development Llc Adiabatic salt energy storage
US9255520B2 (en) 2012-02-27 2016-02-09 Energy Compression Inc. Modular adsorption-enhanced compressed air energy storage system with regenerative thermal energy recycling
CN102743134B (en) * 2012-07-30 2014-11-05 苏州诚河清洁设备有限公司 Steam cleaning equipment
WO2014052927A1 (en) 2012-09-27 2014-04-03 Gigawatt Day Storage Systems, Inc. Systems and methods for energy storage and retrieval
WO2014074828A1 (en) * 2012-11-08 2014-05-15 Viking At, Llc Compressor having a graphite piston in a glass cylinder
GB2508017A (en) 2012-11-19 2014-05-21 Dearman Engine Company Ltd A cryogenic engine driven refrigeration system
US10458284B2 (en) 2016-12-28 2019-10-29 Malta Inc. Variable pressure inventory control of closed cycle system with a high pressure tank and an intermediate pressure tank
US10082045B2 (en) 2016-12-28 2018-09-25 X Development Llc Use of regenerator in thermodynamic cycle system
US10233787B2 (en) 2016-12-28 2019-03-19 Malta Inc. Storage of excess heat in cold side of heat engine
US10233833B2 (en) 2016-12-28 2019-03-19 Malta Inc. Pump control of closed cycle power generation system
US11053847B2 (en) 2016-12-28 2021-07-06 Malta Inc. Baffled thermoclines in thermodynamic cycle systems
US10221775B2 (en) 2016-12-29 2019-03-05 Malta Inc. Use of external air for closed cycle inventory control
US10280804B2 (en) 2016-12-29 2019-05-07 Malta Inc. Thermocline arrays
US10082104B2 (en) 2016-12-30 2018-09-25 X Development Llc Atmospheric storage and transfer of thermal energy
US10801404B2 (en) 2016-12-30 2020-10-13 Malta Inc. Variable pressure turbine
US10436109B2 (en) 2016-12-31 2019-10-08 Malta Inc. Modular thermal storage
WO2019139633A1 (en) 2018-01-11 2019-07-18 Lancium Llc Method and system for dynamic power delivery to a flexible growcenter using unutilized energy sources
AU2020384893A1 (en) 2019-11-16 2022-06-09 Malta Inc. Pumped heat electric storage system
US11486305B2 (en) 2020-08-12 2022-11-01 Malta Inc. Pumped heat energy storage system with load following
US11454167B1 (en) 2020-08-12 2022-09-27 Malta Inc. Pumped heat energy storage system with hot-side thermal integration
US11480067B2 (en) 2020-08-12 2022-10-25 Malta Inc. Pumped heat energy storage system with generation cycle thermal integration
US11286804B2 (en) 2020-08-12 2022-03-29 Malta Inc. Pumped heat energy storage system with charge cycle thermal integration
EP4193041A1 (en) 2020-08-12 2023-06-14 Malta Inc. Pumped heat energy storage system with district heating integration
US11396826B2 (en) 2020-08-12 2022-07-26 Malta Inc. Pumped heat energy storage system with electric heating integration
CN112146325B (en) * 2020-09-24 2022-04-26 上海北里永幸医疗器械有限公司 Cellular-type biological medicament fridge

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB240823A (en) * 1924-10-02 1926-05-06 Stephen Loeffler
GB569554A (en) * 1941-05-08 1945-05-30 Robert Esnault Pelterie Improvements in or relating to methods and apparatus for the production of heat or cold
US5295370A (en) * 1992-11-06 1994-03-22 Morris Bobby D Air conditioner

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903862A (en) * 1955-12-12 1959-09-15 Philias J Bouchard Heat transfer and conversion system
US3503304A (en) 1968-03-18 1970-03-31 Thermo Electron Corp Power source
AU1906783A (en) * 1982-09-16 1984-03-22 Centrifugal Piston Expander Inc. Air cooling apparatus
JPS60238651A (en) * 1984-05-10 1985-11-27 株式会社　富士電機総合研究所 Refrigerator
JPH068705B2 (en) * 1985-10-09 1994-02-02 日本電装株式会社 Gas refrigerator
JPH01139958A (en) * 1987-11-26 1989-06-01 Nippon Denso Co Ltd Valve structure of expansion machine
US4834632A (en) * 1988-01-25 1989-05-30 Tecumseh Products Company Compressor valve system
GB8815696D0 (en) 1988-07-01 1988-08-10 Jaguar Cars Two stroke engines
JPH05113256A (en) * 1991-10-22 1993-05-07 Opton Co Ltd Air conditioning device
JPH06207526A (en) * 1992-02-05 1994-07-26 Tetsunori Hamaura Compression ratio variable type engine
WO1995008696A1 (en) 1993-09-24 1995-03-30 Split Cycle Technology Limited Pivoted piston for radial cylinder machine
JPH07139461A (en) * 1993-11-19 1995-05-30 Tokico Ltd Reciprocating two-stage air compressor
JPH07285842A (en) 1994-04-13 1995-10-31 Yoichi Nagahama Apparatus for automatic production of stick of incense
US5449278A (en) * 1994-11-14 1995-09-12 Lin; Chi-So Double action piston having plural annular check valves
DE19503453C2 (en) * 1995-02-03 1998-06-04 Daimler Benz Ag air conditioning
US6092993A (en) * 1997-08-14 2000-07-25 Bristol Compressors, Inc. Adjustable crankpin throw structure having improved throw stabilizing means
FR2768178B1 (en) 1997-09-11 1999-11-19 Daniel Drecq INTERNAL COMBUSTION ENGINE COMPRISING MEANS FOR RECIRCULATION OF EXHAUST AND SUPPLY GASES
JP3586555B2 (en) * 1998-02-20 2004-11-10 Ｌｗｊ株式会社 Refrigeration system
DE19904002A1 (en) * 1999-02-02 2000-08-17 Udo Wagener Two-stroke internal combustion engine, with closed crankcase and hollow pistons forming air charge precompression chamber
DE19925445A1 (en) * 1999-06-02 2000-12-14 Peter Pelz Reciprocating piston internal combustion engine has inlet valve installed in piston, and stop is provided to open valve when coming into contact with valve stem when piston is in bottom dead centre position
DE10025873A1 (en) * 1999-06-02 2001-11-29 Peter Pelz Piston engine with variable chamber volume provides opening in piston to seat traveling disk valve at chamber-facing passage edge plus piston sleeve interior for clear endstopped valve shaft travel.
CN2443279Y (en) 2000-09-25 2001-08-15 南海市南庄广昌电器塑料有限公司 Condensed water treater for air conditioner
KR100378818B1 (en) 2000-12-01 2003-04-07 엘지전자 주식회사 Apparatus for fixing suction valve of compressor
JP3780281B2 (en) * 2003-12-25 2006-05-31 Ｌｗｊ株式会社 Refrigeration system
RU2262602C1 (en) * 2004-01-20 2005-10-20 Общество С Ограниченной Ответственностью "Мидера-К" Piston machine
US7600390B2 (en) * 2004-10-21 2009-10-13 Tecumseh Products Company Method and apparatus for control of carbon dioxide gas cooler pressure by use of a two-stage compressor
DE102006045286A1 (en) * 2006-09-22 2008-04-03 Kbh Engineering Gmbh steam engine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB240823A (en) * 1924-10-02 1926-05-06 Stephen Loeffler
GB569554A (en) * 1941-05-08 1945-05-30 Robert Esnault Pelterie Improvements in or relating to methods and apparatus for the production of heat or cold
US5295370A (en) * 1992-11-06 1994-03-22 Morris Bobby D Air conditioner

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8656712B2 (en) 2007-10-03 2014-02-25 Isentropic Limited Energy storage
US8826664B2 (en) 2007-10-03 2014-09-09 Isentropic Limited Energy storage
CN102537390A (en) * 2007-12-11 2012-07-04 等熵有限公司 Valve
WO2009074800A1 (en) * 2007-12-11 2009-06-18 Isentropic Limited Valve
US8453677B2 (en) 2007-12-11 2013-06-04 Isentropic Limited Valve
US8496026B2 (en) 2007-12-11 2013-07-30 Isentropic Limited Valve
CN102537389A (en) * 2007-12-11 2012-07-04 等熵有限公司 Valve
WO2009074803A1 (en) * 2007-12-11 2009-06-18 Isentropic Limited Valve
WO2013124616A2 (en) 2012-02-22 2013-08-29 Isentropic Ltd Improvements in or relating to screen valves
US9488281B2 (en) 2012-02-22 2016-11-08 Energy Technologies Institute Llp Screen valves
GB2501476A (en) * 2012-04-23 2013-10-30 Isentropic Ltd A piston assembly
US20150114217A1 (en) * 2012-04-23 2015-04-30 Isentropic Ltd. Piston Assembly
SE2000219A1 (en) * 2020-11-19 2022-05-20 Mats Hedman Method and device for heating and cooling
SE545900C2 (en) * 2020-11-19 2024-03-05 Mats Hedman Method and device for heating and cooling

Also Published As

Publication number Publication date
CN100575814C (en) 2009-12-30
US20090145161A1 (en) 2009-06-11
JP2011202663A (en) 2011-10-13
US8833101B2 (en) 2014-09-16
GB0506006D0 (en) 2005-04-27
EP1872069B8 (en) 2011-01-19
DE602006018276D1 (en) 2010-12-30
JP2011185598A (en) 2011-09-22
EP2267379A3 (en) 2012-04-25
US20120103004A1 (en) 2012-05-03
CN101852505A (en) 2010-10-06
JP5330452B2 (en) 2013-10-30
US8113011B2 (en) 2012-02-14
EP2264381A2 (en) 2010-12-22
JP4829958B2 (en) 2011-12-07
JP2008534897A (en) 2008-08-28
CN101852505B (en) 2012-07-18
EP2256436A2 (en) 2010-12-01
EP1872069A1 (en) 2008-01-02
ATE488738T1 (en) 2010-12-15
EP2256436A3 (en) 2012-04-25
EP1872069B1 (en) 2010-11-17
CA2601811C (en) 2013-05-21
WO2006100486A9 (en) 2007-03-08
CA2601811A1 (en) 2006-09-28
CN101194132A (en) 2008-06-04
EP2264381A3 (en) 2012-08-15
CN101858664A (en) 2010-10-13
EP2267379A2 (en) 2010-12-29

Similar Documents

Publication Publication Date Title
EP1872069B8 (en) Apparatus for use as a heat pump
JP2008534897A5 (en)
CN105927537B (en) Pump assembly and compressor with it
WO2000053926A1 (en) Rotary fluid machinery, vane fluid machinery, and waste heat recovery device of internal combustion engine
CN102588281A (en) Screw compressor with a shunt pulsation trap
JPS6270686A (en) Multicylinder rotary compressor
EP3084166B1 (en) An internal combustion engine
CN108343607B (en) Compression mechanism and compressor with same
JP2022534304A (en) Compressors and refrigeration equipment
AU2011256835A1 (en) Low ice pneumatic motor exhaust muffler
CN202100466U (en) Volume control type rotary compressor
CN101025089A (en) Oscillating piston engine
CN105402102B (en) Single-cylinder reciprocating piston compressor
WO2017031669A1 (en) Rotary compressor and freezing circulation device having same
JPS59155580A (en) Capacity control type compressor
US8220381B2 (en) Combined piston-expander compressor
US20210180465A1 (en) Rotary engine system with work done in multiple cavities
CN111121348B (en) Expander and refrigerating system with same
CN102644597A (en) Double-cylinder rotary compressor
CN101454568A (en) Compressor
US1234684A (en) Compression-pump.
CN104728084A (en) Compressor and valve assembly thereof for reducing pulsation and/or noise
CN114215726A (en) Membrane head structure of diaphragm compressor
KR100621026B1 (en) Modulation apparatus for rotary compressor
CN206972524U (en) The pressure relief of compressor and turn cylinder piston compressor

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2601811

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2008502473

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: 2006726480

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: RU

WWE Wipo information: entry into national phase

Ref document number: 4722/CHENP/2007

Country of ref document: IN

WWW Wipo information: withdrawn in national office

Ref document number: RU

WWE Wipo information: entry into national phase

Ref document number: 200680017438.4

Country of ref document: CN

WWP Wipo information: published in national office

Ref document number: 2006726480

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 11886982

Country of ref document: US