EP1831565A1 - Compresseur pour un appareil frigorifique - Google Patents
Compresseur pour un appareil frigorifiqueInfo
- Publication number
- EP1831565A1 EP1831565A1 EP05813686A EP05813686A EP1831565A1 EP 1831565 A1 EP1831565 A1 EP 1831565A1 EP 05813686 A EP05813686 A EP 05813686A EP 05813686 A EP05813686 A EP 05813686A EP 1831565 A1 EP1831565 A1 EP 1831565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- chamber
- compressor
- compressor according
- piston
- moving parts
- 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.)
- Granted
Links
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
- F04B35/045—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 using solenoids
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
-
- 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
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1073—Adaptations or arrangements of distribution members the members being reed valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2203/00—Non-metallic inorganic materials
- F05C2203/08—Ceramics; Oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/12—Coating
Definitions
- the present invention relates to a compressor which can be used in a refrigerator for compressing refrigerant.
- a compressor generally has a chamber, a piston movable in the chamber, and valves arranged between the chamber and a suction port or a pressure port, which define the flow direction through the compressor from the suction port to the pressure port.
- the object of the invention is to provide a compressor whose valves have a particularly long service life.
- Coating is applied, which is harder than said moving parts and this before
- a hard coating is in particular a ceramic coating into consideration.
- Such a ceramic coating can be formed by applying material to the moving parts, for example by applying a suspension of ceramic particles and then sintering.
- a particularly close bond between the moving part and the ceramic layer formed thereon is obtained when the ceramic layer is formed by superposing the material of the moving parts superficially.
- the material of the ceramic coating in particular oxides, nitrides, carbides or a mixture of several of these substances come into consideration.
- a material for the moving parts a spring steel is preferably used.
- the invention is particularly advantageously applicable to a compressor comprising a linear drive unit acting directly on the piston, because such compressors as e.g. from US Pat. No. 6,641,377 B2 have a relatively small piston stroke in comparison to rotationally driven compressors and therefore have to work with a high frequency of movement and correspondingly frequent switching of the valves in order to achieve a required throughput.
- the invention is advantageously applicable when the piston is stored oil-free in the chamber. While in oil-bearing pistons usually a thin film of oil covers the entire interior of the chamber including the valves, which promotes the heat dissipation from the moving parts of the valves, the heat dissipation from the moving parts in oil-free operation is usually much worse, and accordingly great is the thermal load and consequently the tendency of these moving parts to wear.
- FIG. 1 shows a compressor according to the invention partly in a schematic side view, partly in section.
- FIG. 2 is a plan view of a diaphragm spring of the compressor of FIG. 1.
- the lower region of the linear compressor shown in FIG. 1 forms a drive unit 1. It comprises a permanent magnetic oscillating body 2 whose longitudinal ends each form opposite magnetic poles.
- the vibrating body 2 extends through two opposite openings 3 of a chamber 4 which is provided to receive a pair of electromagnets 8.
- the electromagnets 8, which are diametrically opposite each other on either side of the oscillating body 2, can be connected to an alternating current of controlled frequency in order to generate alternating magnetic fields, each having opposed poles of the same name.
- the Electromagnets 8 have an iron core 9 of E-shaped cross-section with three parallel legs 11, 12 connected at one end. A winding 10 respectively surrounds the middle leg 11 of each iron core. The tip of the middle leg 11, on the one hand, and the two outer legs 12, on the other hand, each form different pole of each electromagnet 8.
- the poles alternately attract one of the poles of the oscillating body 2 and the other at the tips of the legs 12, thereby deflecting the vibrating body 2 alternately in opposite directions.
- each arm takes a 7 of the longitudinal axis of the oscillating body 2 outgoing 90 ° sector, and each arm 7 is mirror-inverted to the two adjacent arms 7.
- Fig. 1 which shows the oscillating body 2 slightly deflected from its rest position upwards, two of these arms 7 can be seen in each case.
- the mirror-image arrangement compensates for a torque that possibly exerts on one of the arms 7 in the course of the movement of the oscillating body 2, by the oppositely equal torque of the adjacent arm.
- a compression chamber is connected to the chamber 4 of the electromagnet via an arc 21 which extends beyond the ends of the arms 7 facing away from the oscillating body
- Diaphragm spring 5 is fixed to the webs 6 of the top of the chamber 4.
- Piston rod 22 connects a reciprocating in the compression chamber 20 and forth
- a suction port 24 and a pressure port 25 each open via an inlet valve 26 and an outlet 27 into the compression chamber 20.
- the valves 26, 27 are exemplified here as plate valves, each with a spring leaf 28 at one end to the wall of the compressor chamber 20 is soldered or otherwise suitably fixed and carries in its movable section a sealing body 29 which, in the configuration shown in FIG. 1, contacts in each case a hollow conical valve seat 30 which is formed in the wall of the compression chamber 20.
- the spring leaf 28 is formed in each case from spring steel.
- the sealing body 29 can be completely realized as a fixed to the spring leaf 28 ceramic layer; it may also be made of spring steel in the core and be provided with only an outer coating which is too thin to be represented in the figure. In the latter case, the sealing body 29 is preferably formed integrally from the material of the spring leaf 28 by embossing.
- the outlet valve 27 is in a separate chamber 31 within the wall of the compression chamber into which it can retreat to allow fluid displaced by the upwardly moving piston 23 to flow to the pressure port.
- a passage 32 From the chamber 31 is a passage 32, which feeds a compression chamber 20 annularly surrounding cavity 33 with compressed fluid.
- the cavity 33 communicates with the interior of the compression chamber 20 via a plurality of radial bores 24, through which a portion of the fluid displaced by the piston 23 can flow back into the compression chamber 20. It forms a sliding film between the inner wall of the compression chamber 20 and the peripheral surface of the piston 23, which allows it to slide largely frictionless and allows to dispense with an oil lubrication of the piston 23.
- the wear-reducing hard surface layer may be limited to those surface areas of the sealing body 29 that actually come into contact with the valve seat 30; but it can also extend over the entire sealing body or, especially if it is integrally formed from the spring leaf 28, over the entire surface of the spring leaf 28 or at least the valve seat 30 side facing it.
- It can be produced by reacting a surface layer of the A sealing body in a reactive, for example, oxygen-containing atmosphere or in an oxygen, nitrogen and / or carbon-containing plasma to an oxide, nitride or carbide, wherein the reacted surface layer is a part of the spring steel of the sealing body 29 itself or in advance for the purpose of implementation applied thereto material can, or it is immediately the desired ceramic material such as alumina or zirconia, for example in the form of a suspension or a gel brushed or sprayed on the surface in question and then sintered thereon.
- a reactive for example, oxygen-containing atmosphere or in an oxygen, nitrogen and / or carbon-containing plasma
- oxide, nitride or carbide wherein the reacted surface layer is a part of the spring steel of the sealing body 29 itself or in advance for the purpose of implementation applied thereto material can, or it is immediately the desired ceramic material such as alumina or zirconia, for example in the form of a suspension or a gel brushed or sprayed on
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Compressor (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004062297A DE102004062297A1 (de) | 2004-12-23 | 2004-12-23 | Verdichter für ein Kältegerät |
PCT/EP2005/056347 WO2006069883A1 (fr) | 2004-12-23 | 2005-11-30 | Compresseur pour un appareil frigorifique |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1831565A1 true EP1831565A1 (fr) | 2007-09-12 |
EP1831565B1 EP1831565B1 (fr) | 2010-02-10 |
Family
ID=35734942
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05813686A Not-in-force EP1831565B1 (fr) | 2004-12-23 | 2005-11-30 | Compresseur pour un appareil frigorifique |
Country Status (8)
Country | Link |
---|---|
US (1) | US20080112829A1 (fr) |
EP (1) | EP1831565B1 (fr) |
CN (1) | CN101087956A (fr) |
AT (1) | ATE457426T1 (fr) |
DE (2) | DE102004062297A1 (fr) |
ES (1) | ES2338906T3 (fr) |
RU (1) | RU2387874C2 (fr) |
WO (1) | WO2006069883A1 (fr) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8028409B2 (en) | 2005-08-19 | 2011-10-04 | Mark Hanes | Method of fabricating planar spring clearance seal compressors |
DE102006052447A1 (de) | 2006-11-07 | 2008-05-08 | BSH Bosch und Siemens Hausgeräte GmbH | Linearverdichter und Gasdrucklager dafür |
WO2008108752A1 (fr) * | 2007-03-02 | 2008-09-12 | Pv-Med, Inc. | Procédé de fabrication d'un compresseur possédant un ressort plan et un palier à gaz |
US8607560B2 (en) | 2008-02-28 | 2013-12-17 | Superconductor Technologies, Inc. | Method for centering reciprocating bodies and structures manufactured therewith |
BRPI1103355A2 (pt) * | 2011-07-04 | 2013-07-23 | Whirlpool Sa | dispositivo adaptador para compressor linear, e compressor provido do referido dispositivo |
BRPI1103647A2 (pt) * | 2011-07-07 | 2013-07-02 | Whirlpool Sa | disposiÇço entre componentes de compressor linear |
BRPI1103447A2 (pt) * | 2011-07-19 | 2013-07-09 | Whirlpool Sa | feixe de molas para compressor e compressor provido de feixe de molas |
BRPI1104172A2 (pt) * | 2011-08-31 | 2015-10-13 | Whirlpool Sa | compressor linear baseado em mecanismo oscilatório ressonante |
US11512686B2 (en) * | 2019-04-05 | 2022-11-29 | Montana Technological University | Mechanical resonant pump |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1669889A (en) * | 1922-04-17 | 1928-05-15 | Couzens Ice Machine Company | Compressor valve |
US3586456A (en) * | 1968-06-17 | 1971-06-22 | Sira | Compressors for fluids |
US4059367A (en) * | 1976-04-26 | 1977-11-22 | Richard Clarence Marshall | Gaseous fluid compressing apparatus |
IT1182433B (it) | 1985-02-12 | 1987-10-05 | Gevipi Ag | Organi di tenuta in materiale duro aventi basso coefficiente di attrito |
US4948764A (en) * | 1986-09-16 | 1990-08-14 | Lanxide Technology Company, Lp | Production of ceramic and ceramic-metal composite articles with surface coatings |
WO1988006675A1 (fr) * | 1987-02-27 | 1988-09-07 | Willi Ernst Salzmann | Machine a piston oscillant |
US4960643A (en) * | 1987-03-31 | 1990-10-02 | Lemelson Jerome H | Composite synthetic materials |
US5960825A (en) * | 1997-06-26 | 1999-10-05 | Copeland Corporation | Laser hardened reed valve |
US6073648A (en) * | 1999-04-26 | 2000-06-13 | Watson Grinding And Manufacturing Company | Metal element having a laminated coating |
US7078832B2 (en) | 2002-10-16 | 2006-07-18 | Matsushita Refrigeration Company | Linear motor, and linear compressor using the same |
EP1586774A4 (fr) | 2002-12-27 | 2011-03-09 | Zexel Valeo Climate Contr Corp | Compresseur a cylindree variable de type a plateau oscillant concu pour un cycle de refrigeration supercritique |
NZ526361A (en) * | 2003-05-30 | 2006-02-24 | Fisher & Paykel Appliances Ltd | Compressor improvements |
-
2004
- 2004-12-23 DE DE102004062297A patent/DE102004062297A1/de not_active Withdrawn
-
2005
- 2005-11-30 AT AT05813686T patent/ATE457426T1/de not_active IP Right Cessation
- 2005-11-30 RU RU2007121325/06A patent/RU2387874C2/ru not_active IP Right Cessation
- 2005-11-30 US US11/794,043 patent/US20080112829A1/en not_active Abandoned
- 2005-11-30 WO PCT/EP2005/056347 patent/WO2006069883A1/fr active Application Filing
- 2005-11-30 DE DE502005009014T patent/DE502005009014D1/de active Active
- 2005-11-30 CN CNA2005800443032A patent/CN101087956A/zh active Pending
- 2005-11-30 ES ES05813686T patent/ES2338906T3/es active Active
- 2005-11-30 EP EP05813686A patent/EP1831565B1/fr not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
See references of WO2006069883A1 * |
Also Published As
Publication number | Publication date |
---|---|
RU2007121325A (ru) | 2009-01-27 |
ATE457426T1 (de) | 2010-02-15 |
US20080112829A1 (en) | 2008-05-15 |
EP1831565B1 (fr) | 2010-02-10 |
CN101087956A (zh) | 2007-12-12 |
DE102004062297A1 (de) | 2006-07-13 |
DE502005009014D1 (de) | 2010-03-25 |
ES2338906T3 (es) | 2010-05-13 |
WO2006069883A1 (fr) | 2006-07-06 |
RU2387874C2 (ru) | 2010-04-27 |
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