CN102119308B - Integration of a delta-p expansion valve for COP-optimal regulation in a high-pressure connection, in particular an internal heat exchanger - Google Patents
Integration of a delta-p expansion valve for COP-optimal regulation in a high-pressure connection, in particular an internal heat exchanger Download PDFInfo
- Publication number
- CN102119308B CN102119308B CN200980128825.9A CN200980128825A CN102119308B CN 102119308 B CN102119308 B CN 102119308B CN 200980128825 A CN200980128825 A CN 200980128825A CN 102119308 B CN102119308 B CN 102119308B
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- China
- Prior art keywords
- expansion valve
- valve
- matrix
- hole
- section
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- 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.)
- Expired - Fee Related
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Classifications
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- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/33—Expansion valves with the valve member being actuated by the fluid pressure, e.g. by the pressure of the refrigerant
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- 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
- F25B2500/00—Problems to be solved
- F25B2500/18—Optimization, e.g. high integration of refrigeration components
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- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2505—Fixed-differential control valves
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- 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
- F25B40/00—Subcoolers, desuperheaters or superheaters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The invention relates to an expansion valve for regulating the mass flow rate by generating a pressure difference on the expansion valve of a refrigeration or heating cycle. Said expansion valve comprises a base (31) having a through-hole (32) that is surrounded by a valve seat (33), and a valve element (34) which closes the through-hole (32) and rests within the valve seat (33) in a closed position and can be moved relative to the valve seat (33) in the opening direction on the base (31). The base (31) is designed to be inserted into a bore section (29) of an attachment point (26, 27) of a connection (21) of an internal heat exchanger (14) or into a connection (21) of a pipe in the refrigeration or heating cycle. The outer circumference (46) of the base (31) has a fastening section (47) that is releasably fastened to the attachment point (26, 27) of the connection (21) by means of a complementary fastening section (48).
Description
Technical field
The present invention relates to a kind of in cold circulation or thermal cycle, carrying out the expansion valve of mass flow adjusting (Regelung) by the pressure reduction at expansion valve place.
Background technology
Learn a kind of expansion valve by file US2006/0117793A1, it is provided in cold circulation especially at the air-conditioning quality of regulation flow for vehicle.This expansion valve is arranged between inner heat exchanger and evaporimeter in pipe section.For this reason, this expansion valve has matrix, and this matrix comprises through hole, this through hole by valve seat around and can utilize the valve element to be closed in closing position.This valve element can be on opening direction towards the low-pressure side displacement with for regulating high pressure.The matrix of expansion valve is inserted in the aperture of the pipe section that is suitable for holding expansion valve in high-pressure side.By independent bolt, connect, expansion valve is fixed in its position in pipe section.
This layout has following shortcoming, that is, because this extra bolt for expansion valve being fixed on to pipe section connects, need another bolt to connect, and it is attached to inner heat exchanger.This has following shortcoming,, needs extra sealing position that is, has reduced thus the sealing of circulate coolant.In addition, there is assembly cost and the material cost increased.
Summary of the invention
Therefore, the object of the invention is to, propose a kind of such expansion valve, that is, it does not need extra interface or parts with for introduction in cold circulation or thermal cycle.
This purpose realizes according to the invention through the features of claim 1.
By expansion valve according to such design of the present invention,, expansion valve is with matrix, this matrix is configured for being installed in the aperture section of joint (especially high-pressure side joint) of inner heat exchanger or the joint of pipeline that is installed to cold circulation or thermal cycle especially in the joint of high-pressure side, and peripheral region has fixedly section outside, fixedly the fixedly section of section utilization complementation releasably is fixed in joint, there is following advantage, that is what, make expansion valve simply and fast is assembled into possibility.
For example, directly before the pipe joint that is connected to the inner heat exchanger place, expansion valve can be installed in the joint of the joint of inner heat exchanger or conduit section with for being fixed on the inner heat exchanger place, and pipe section or its joint are connected in the joint of inner heat exchanger subsequently.Except the design of joint space-efficient, such layout has following advantage in addition, that is, cold circulation or thermal cycle have less sealing position, have improved thus the sealing of whole cold circulation or thermal cycle.Simultaneously, can provide the minimizing on material cost thus, because do not need for holding the extra housing of valve element.
A kind of preferred design according to the present invention is arranged to, and the fixedly section at the matrix place is configured to screw thread.Can make thus the simple manufacture of fixing section and be mounted for fast possibility.In being used as the fixedly section of screw thread, such expansion valve is known as screw-in pick-and-place components (Einschraubpatrone) equally.Alternatively, this fixedly section can be configured to bayonet socket lock portion (Bajonettverschluss).To obtain equally the advantage of screw thread thus.
The alternative form of implementation of another kind according to the present invention is arranged to, fixedly section at the matrix place is configured to preferably radial oriented supporting surface, this supporting surface abut in point of attachment the aperture section around preferred radial oriented anchor ring place, wherein, the hole wall of this anchor ring abutting aperture mouth region section.This layout has following advantage, that is, can be applied to thus expansion valve is inserted into simply in the point of attachment of joint and is positioned in point of attachment by another interface unit or fellow subsequently.
Preferably, for position in point of attachment, correctly arrange with the fixed expansion valve and also be provided with energy-storage travelling wave tube, it acts on the distolateral place of matrix.Relatively put ground, energy-storage travelling wave tube preferably is supported on another area under control Duan Chu, and this area under control section is fastened on the point of attachment place by outside bolt, thereby makes the matrix of expansion valve abut in the anchor ring place in the aperture section of joint.
The favourable design of another kind according to the present invention, be adjacent to fixedly section at the matrix place and be provided with potted component, and the sealing element is preferably with respect to be arranged on the downstream of cooling agent at the fixedly section at matrix place.Improve as follows thus assembly reliability, that is, potted component does not contact with fixing section when expansion valve is installed or be advanced in the joint of inner heat exchanger or pipeline.Preferably, O shape ring is provided as potted component, its remain on regularly the matrix place around notch in.
Expansion valve preferably is installed to the section of aperture and preferably like this from the free end of joint, that is, matrix and valve element are arranged in this joint fully.Thus, created to a certain extent a kind of inner expansion valve that is in the joint of inner heat exchanger or pipeline, its point of attachment in previous form of implementation can retain.
Another favourable design according to the present invention is arranged to, the valve element is configured to pin-shaped, wherein, the closed sections of the valve of valve element with respect to via arrangement in downstream and the valve element preferably through through hole, so that be equipped with energy-storage travelling wave tube in provided upstream, this energy-storage travelling wave tube is positioned at the closed sections of valve in valve seat.Arrange by this, can make in addition design very elongated and compactness become possibility, thereby make expansion valve can be installed to equally in less orifice diameter or conduit diameter.In addition, expansion valve is provided with the member of minimum number, with matrix, valve element and energy-storage travelling wave tube and preferably with adjusting nut, spring base or adjusting nut, it forms unit and therefore preferably goes into screw-in pick-and-place components or plug-in type pick-and-place components (Einsteckpatrone) in the state of assembling or rather.
The favourable design of another kind according to the present invention is arranged to, and the closed sections of valve is usingd the mode that single or multiple on its periphery (einmal oder mehrmals) distribute and comprised that recess is as bypass, this recess and with putting layout relative with valve seat.Can obtain thus, leaking mass flow in closed expansion valve can flow through.In addition, this layout has following advantage, that is, in the stroke of the beginning of valve element about opening cross section
characteristic line unaffected because the recess in the closed sections of valve is away from valve seat.
Preferably be arranged to, at least one recess is configured to breach.Such breach simply mode is manufactured.
The preferred design of another kind according to the present invention is arranged to, and matrix has the guiding segments of extending for the upstream at through hole of valve element.Thus, the valve element can be directed during its opening movement and closing motion, and guarantee correctly to occupy the closing position of valve element by through hole.
The preferred design of another kind according to the present invention is arranged to, and an end of energy-storage travelling wave tube acts on the guiding segments place.Do not need thus extra parts.Can pass through on the contrary the structure of the preferred single-piece of this layout and the relative matrix of guiding segments and create design compact and that parts reduce, it is fully effective.
The preferred design of another kind according to the present invention is arranged to, and at adjusting nut, place is provided with spring base, and it act as the floating support for energy-storage travelling wave tube.Can obtain thus, energy-storage travelling wave tube carrys out work with less sluggishness.
The preferred design of another kind according to the present invention is provided with the unlatching cross section on the opening direction of valve element with following closely at the valve seat place, this unlatching cross section does not rely on the enable possition of the closed sections of valve and the outer peripheral edges structure throttling of the closed sections of valve.At this, be arranged to, the length of opening cross section at least comprises the length of valve stroke, thereby make, does not rely on valve stroke constant throttling cross section is provided.Can obtain thus rearmounted throttling (Nachdrosselung), its relatively preposition throttling has following advantage, that is, reduced to form at the gas at throttling position.Therefore this throttling position, has limited mass flow at pressure rise when higher, has created thus the improved condition of work of cold circulation or thermal cycle.
Expansion valve (it is configured to built-in type pick-and-place components (Einbaupatrone) in particular) has following advantage in addition,, at least one sprocket hole (it is through guiding segments and lead to through hole) arranges with the angle between 1 ° and 90 °, wherein, preferably be provided with the angle that is less than 60 °.This means, sprocket hole is orientated in the upstream of cooling agent, thereby needs less change on flow direction.This can contribute to reduce gas and form.Therefore, sprocket hole completely or partially points in contrast to flow direction, thereby make, reduces turbulent formation.
The accompanying drawing explanation
The present invention and other favourable form of implementation and improvement project of the present invention are further described and illustrate by example illustrated in the accompanying drawings below.The feature obtained by specification and accompanying drawing can be individually according to the present invention or a plurality ofly is employed in the mode of any combination.Wherein:
Fig. 1 has shown the indicative icon of cold circulation,
Fig. 2 has shown the schematic cross section through the joint of inner heat exchanger,
Fig. 3 has shown the schematic zoomed-in view be installed according to the expansion valve in the joint of Fig. 2,
Fig. 4 has shown the schematic zoomed-in view according to the layout for rearmounted throttling of the expansion valve of Fig. 2,
Fig. 5 has shown the schematic zoomed-in view of alternative form of implementation of the expansion valve of relative Fig. 3,
Fig. 6 has shown the schematic zoomed-in view with the alternative fixing expansion valve according to Fig. 5 in joint,
Fig. 7 has shown the chart of the effect for rearmounted throttling is described, and
Fig. 8 has shown the see-through view with respect to the alternative form of implementation of Fig. 2.
The specific embodiment
Fig. 1 has shown cold circulation and/or the thermal cycle 11 that is installed in particular the air-conditioning in motor vehicle.In compressor for cooling fluid 12, (especially R134a) is compressed for gasiform cooling agent.Compressed cooling agent is fed to condenser 13, carries out the cooling agent that compressing and the heat exchange between environment at these condenser 13 places, so that cooling cooling agent.Downstream at condenser 13 can be provided with accumulator 17, so that separate the cooling agent of gas phase and liquid phase and collect liquid phase coolant simultaneously.The cooling agent that leaves condenser 13 or accumulator 17 arrives inner heat exchanger 14.Be provided with expansion valve 15 between inner heat exchanger 14 and evaporimeter 16.By expansion valve 15, depend on the mass flow of (anliegend) pressure reduction adjusting air-conditioning of existence.Cooling agent arrives evaporimeter 16 by expansion valve 15.In evaporimeter 16, cooling agent absorbs heat from environment.From this evaporimeter 16, cooling agent is fed to again compressor for cooling fluid 12 by inner heat exchanger 14.
Schematically show enlargedly the joint 21 of inner heat exchanger 14 in Fig. 2.Inner heat exchanger 14 is formed by dual pipe assembly 22, wherein, outside pipe cross section (Rohrquerschnitt) with condenser 13 in being connected.By expansion valve 15, cooling agent is directed to evaporimeter 16.Joint 21 has the first point of attachment 26, at these the first point of attachment 26 places, can be connected with the pipeline that leads to evaporimeter 16.Joint 21 has the second point of attachment 27 near this second point of attachment 26, and this second point of attachment 27 guides to inner heat exchanger 14 by cooling agent by evaporimeter 16.From this point of attachment 27, cooling agent arrives compressor for cooling fluid 12 by the internal pipeline section 28 of inner heat exchanger 14.
Therefore, expansion valve 15 is arranged on high-pressure side, and wherein, expansion valve 15 so is arranged in the aperture section 29 of the first point of attachment 26, that is, make the pipeline that can unhinderedly be connected in the first coupled position 26 places connect.
Figure 3 illustrates the view according to the schematic amplification of the expansion valve 15 of Fig. 2.Expansion valve 15 comprises matrix 31, and this matrix 31 comprises the through hole 32 with the valve seat 33 that is adjacent to its place.In addition, matrix 31 holds valve element 34, and this valve element 34 for example is configured to pin-shaped and comprises the closed sections of valve (Ventilschlie β glied) 36, the closed sections 36 of this valve closed through hole 32 and abut in valve seat 33 places in closing position.For the layout of closing position is provided with energy-storage travelling wave tube 37, this energy-storage travelling wave tube 37 is arranged in valve element 34 places with an end.End relatively putting, preferably be provided with adjusting nut 38, so that adjust the start-up time of initial tension of spring or valve element 34.With respect to adjusting nut 38, energy-storage travelling wave tube 37 acts on guiding segments 39 places, and this guiding segments 39 preferably is configured to single-piece with matrix 31.Usually, the closed sections 36 of valve is directed directly through guiding segments 39.Addedly, can preferably at guiding segments 39 places, be provided with guide sleeves 41, so that pilot valve element 34.Be provided with sprocket hole 43 in guiding segments 39, by these sprocket hole 43 cooling agents, arrive through hole 32.Once high pressure has surpassed definite value, valve element 34 is opened on flow direction, that is to say, realizes opening movement left.
Except previous described form of implementation, can be arranged to, the valve element is the valve seat at its place in the upstream of through hole 32 closed arrangement.
Figure 4 illustrates by the schematic zoomed-in view of the rearmounted throttling of expansion valve 15.In this form of implementation, be adjacent to valve seat 33 and be provided with and open cross section 58, it comprises such length, that is, this length at least comprises the length of the outer peripheral edges section 60 of the stroke of opening movement of maximum of valve element 34 and the closed sections 36 of valve.Preferably, the outer peripheral edges section 60 of the closed sections 36 of valve and unlatching cross section 58 are configured to constant, thereby construct rearmounted throttling, that is to say, although stroke movement increases, constant throttling cross section works and therefore provide rearmounted throttling, and this postposition throttling is limited in the mass flow in through hole 32 equally.
Preferably, be provided with recess 45 at the closed sections of valve 36 places and preferably be configured to breach to be used to form bypass 44 these recesses 45.This recess 45 is arranged on the periphery at the closed sections of valve 36 places single or multiplely, and preferably relative with valve seat 33 and put.By recess 45 (it can be configured to not be breach equally), obtain so-called leakage mass flow.
Figure 5 illustrates the schematic cross sectional representation of alternative form of implementation of the expansion valve 15 of relative Fig. 3.Below only relate to different structural forms.In addition, it is applicable that this implements relative Fig. 3.
In this form of implementation, through hole 43 is not orthogonal to the stroke movement orientation of the valve element 34 during opening movement and closing motion, but tilts at flow direction.For example, through hole 43 is about the angle inclination of 30 ° with the longitudinal axis with respect to valve element 34.Can provide the layout that is conducive to flow thus.
In addition, for example be provided with filter or filter screen 65 in this form of implementation, it for example directly is fixed on matrix 31 places by screw thread 66.
In addition, this form of implementation for example also has spring base 40 except the adjusting nut 38 for energy-storage travelling wave tube 37, and this spring base 40 makes the floating support of energy-storage travelling wave tube 37 become possibility, thus energy-storage travelling wave tube especially spring element carry out work with less sluggishness.
Figure 6 illustrates the expansion valve 15 with the structure of with good grounds Fig. 5.The relative form of implementation in Fig. 5, according to the form of implementation of Fig. 6 at expansion valve 15 difference aspect fixing in joint 21.All the other applicable previous embodiments.As become fixedly substituting of section 47,48 by thread structure, this form of implementation has the stepped bore mouth region section 29 with anchor ring 71, and this anchor ring 71 is by aperture section 29 adjacency.The supporting surface 70 of matrix 31 is supported on anchor ring 71 places, and this supporting surface 70 equally preferably is configured to radially anchor ring.The distolateral 73 places effect of relatively putting at matrix 31 has another energy-storage travelling wave tube 74, and this energy-storage travelling wave tube 74 is fixed on expansion valve 15 in aperture section 26.The end (it does not further illustrate) of relatively putting of energy-storage travelling wave tube 74 is held by another pipeline (it fixes by outside spiral connector).
Figure 7 illustrates schematic chart, it shows the effect of rearmounted throttling.Risen by certain unlatching cross section, can not discharge larger unlatching cross section although pressure continues to rise, as illustrated by characteristic curve 61.This means, mass flow keeps limited and does not increase constantly, as illustrated by characteristic curve 62.
Figure 8 illustrates the alternative form of implementation of relative Fig. 2.So be provided with the guiding of coolant flow in this form of implementation, that is, the passage 28 of the centre of the cooling agent that is loaded with the high pressure dual pipe by inner heat exchanger 14 or coaxitron by condenser flows to joint 21.After expanding by expansion valve 15 (this expansion valve 15 be arranged in the first point of attachment 26 of joint 21 in), be loaded with the ANALYSIS OF COOLANT FLOW of low pressure to evaporimeter 16.By 16, evaporimeter, cooling agent flows to inner heat exchanger 14 by the second point of attachment 27 of joint 21.For example suggestion in joint 21, at distolateral installation expansion valve 15.The embodiment of all the other applicable above-mentioned figure.
Claims (9)
1. one kind for carrying out the expansion valve of mass flow adjusting in cold circulation or thermal cycle by the pressure reduction at expansion valve place, this expansion valve: with matrix (31), described matrix (31) comprises through hole (32), and described through hole (32) is surrounded by valve seat (33), and with valve element (34), described valve element (34) closed described through hole (32) and abutting in described valve seat (33) in closing position, and being arranged to can be with respect to valve seat (33) displacement of locating at described matrix (31) on opening direction, it is characterized in that, described matrix (31) is configured for from the point of attachment (26 of joint (21), 27) free end fully is installed to the point of attachment (26 of the joint (21) of inner heat exchanger (14), 27) in aperture section (29) or fully be installed in the joint (21) of the pipeline in described cold circulation or thermal cycle, and locate to have the first fixing section (47) in the outer peripheral edges (46) of described matrix (31), described first fixedly section (47) utilize complementary second fixedly section (48) releasably be fixed on the point of attachment (26 of described joint (21), 27) locate.
2. expansion valve according to claim 1, is characterized in that, described matrix (31) described first fixedly section (47) and described joint (21) described second fixedly section (48) be configured to screw thread or bayonet socket lock portion.
3. expansion valve according to claim 1 and 2, is characterized in that, described matrix (31) locate to be adjacent to described first fixedly section (47) be provided with potted component (53).
4. expansion valve according to claim 1 and 2, is characterized in that, described matrix (31) can be fully inserted into from the free end of the point of attachment (26,27) of described joint (21).
5. expansion valve according to claim 1 and 2, it is characterized in that, described valve element (34) is configured to pin-shaped, wherein, the closed sections of the valve of described valve element (34) (36) is arranged in downstream with respect to described through hole (32), wherein, in provided upstream, be equipped with energy-storage travelling wave tube (37), described energy-storage travelling wave tube (37) is positioned at the closed sections of described valve (36) in described valve seat (33).
6. expansion valve according to claim 1 and 2, is characterized in that, described matrix (31) has the guiding segments (39) of extending for the upstream at described through hole (32) of described valve element (34).
7. expansion valve according to claim 1 and 2, it is characterized in that, described valve element (34) is configured to pin-shaped, the closed sections of the valve of wherein said valve element (34) (36) is arranged in downstream with respect to described through hole (32), wherein, be equipped with energy-storage travelling wave tube (37) in provided upstream, described energy-storage travelling wave tube (37) is positioned at the closed sections of described valve (36) in described valve seat (33), and described matrix (31) has the guiding segments (39) of extending for the upstream at described through hole (32) of described valve element (34), an end of wherein said energy-storage travelling wave tube (37) acts on that described guiding segments (39) is located and the end of relatively putting acts on described valve element (34) and locates or act on and be arranged in the adjusting nut (38) that described valve element (34) locates and locate.
8. expansion valve according to claim 3, is characterized in that, described potted component (53) relatively at described matrix (31), locate first fixedly section (47) be arranged in the downstream of cooling agent.
9. expansion valve according to claim 5, is characterized in that, described valve element (34) is through described through hole (32).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008033212.7 | 2008-07-15 | ||
| DE200810033212 DE102008033212A1 (en) | 2008-07-15 | 2008-07-15 | Integration of an ap-expansion valve for optimal COP control in a high-pressure side connection, in particular in an internal heat exchanger |
| PCT/EP2009/004979 WO2010006729A2 (en) | 2008-07-15 | 2009-07-09 | Integration of a delta-p expansion valve for cop-optimal regulation in a high-pressure connection, in particular an internal heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102119308A CN102119308A (en) | 2011-07-06 |
| CN102119308B true CN102119308B (en) | 2014-01-08 |
Family
ID=41130441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980128825.9A Expired - Fee Related CN102119308B (en) | 2008-07-15 | 2009-07-09 | Integration of a delta-p expansion valve for COP-optimal regulation in a high-pressure connection, in particular an internal heat exchanger |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110126921A1 (en) |
| EP (1) | EP2304344A2 (en) |
| CN (1) | CN102119308B (en) |
| DE (1) | DE102008033212A1 (en) |
| WO (1) | WO2010006729A2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014519689A (en) | 2011-06-10 | 2014-08-14 | コーニンクレッカ フィリップス エヌ ヴェ | Retrofit lighting equipment |
| CN109469768B (en) * | 2017-09-07 | 2022-01-04 | 浙江三花智能控制股份有限公司 | Refrigerating system and electronic expansion valve thereof |
| DE102018111811A1 (en) * | 2018-05-16 | 2019-11-21 | Otto Egelhof Gmbh & Co. Kg | Check valve, in particular for a refrigeration or heat cycle |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1443675A (en) * | 1923-01-30 | Valve | ||
| US1705942A (en) * | 1928-02-04 | 1929-03-19 | Chicago Pneumatic Tool Co | Valve |
| US2606573A (en) * | 1948-12-29 | 1952-08-12 | William M Brobeck | Adjustable venturi assembly |
| US2682891A (en) * | 1949-11-10 | 1954-07-06 | Leslie Co | Double seated valve |
| US2854021A (en) | 1954-02-11 | 1958-09-30 | Weatherhead Co | Relief valve |
| US3347266A (en) * | 1963-09-19 | 1967-10-17 | Gen Dynamics Corp | Spring biased relief valve |
| US3482415A (en) | 1968-03-01 | 1969-12-09 | Allen Trask | Expansion valve for heat pump |
| US3992898A (en) * | 1975-06-23 | 1976-11-23 | Carrier Corporation | Movable expansion valve |
| US4570899A (en) * | 1984-11-19 | 1986-02-18 | Household Manufacturing, Inc. | Adjustable slow closing valve assembly |
| US5041257A (en) * | 1987-09-14 | 1991-08-20 | Robertshaw Controls Company | Expansion device for a refrigeration system, piston therefor and methods of making the same |
| US5516079A (en) * | 1995-01-27 | 1996-05-14 | Baumann Hans D | Small flow control valve with tight shutoff capability |
| CN2526754Y (en) * | 2002-03-07 | 2002-12-18 | 浙江正东机车部件有限公司 | Electronic expansion valve for frequency change air conditioner |
| JP4114471B2 (en) * | 2002-12-06 | 2008-07-09 | 株式会社デンソー | Refrigeration cycle equipment |
| JP4235515B2 (en) * | 2003-09-12 | 2009-03-11 | 株式会社テージーケー | Constant differential pressure valve |
| JP2006189240A (en) | 2004-12-07 | 2006-07-20 | Tgk Co Ltd | Expansion device |
-
2008
- 2008-07-15 DE DE200810033212 patent/DE102008033212A1/en not_active Withdrawn
-
2009
- 2009-07-09 EP EP09777066A patent/EP2304344A2/en not_active Withdrawn
- 2009-07-09 WO PCT/EP2009/004979 patent/WO2010006729A2/en active Application Filing
- 2009-07-09 CN CN200980128825.9A patent/CN102119308B/en not_active Expired - Fee Related
- 2009-07-09 US US12/737,472 patent/US20110126921A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP2304344A2 (en) | 2011-04-06 |
| DE102008033212A1 (en) | 2010-01-21 |
| WO2010006729A8 (en) | 2010-07-15 |
| US20110126921A1 (en) | 2011-06-02 |
| WO2010006729A3 (en) | 2010-04-08 |
| CN102119308A (en) | 2011-07-06 |
| WO2010006729A2 (en) | 2010-01-21 |
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