CN1643315A - Molded core filter drier - Google Patents
Molded core filter drier Download PDFInfo
- Publication number
- CN1643315A CN1643315A CN 03806941 CN03806941A CN1643315A CN 1643315 A CN1643315 A CN 1643315A CN 03806941 CN03806941 CN 03806941 CN 03806941 A CN03806941 A CN 03806941A CN 1643315 A CN1643315 A CN 1643315A
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- Prior art keywords
- core
- drying
- filtering
- housing
- molded
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- 238000000034 method Methods 0.000 claims abstract description 41
- 238000004519 manufacturing process Methods 0.000 claims abstract description 24
- 239000003507 refrigerant Substances 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims abstract description 11
- 238000001035 drying Methods 0.000 claims description 112
- 238000001914 filtration Methods 0.000 claims description 104
- 239000002274 desiccant Substances 0.000 claims description 55
- 239000011230 binding agent Substances 0.000 claims description 25
- 238000005057 refrigeration Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims 1
- 230000033001 locomotion Effects 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 abstract description 4
- 238000007373 indentation Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 13
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000010949 copper Substances 0.000 description 7
- 238000000465 moulding Methods 0.000 description 6
- 230000007704 transition Effects 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
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- 238000009434 installation Methods 0.000 description 2
- 239000000314 lubricant Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000006200 vaporizer Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
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- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0415—Beds in cartridges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/266—Drying gases or vapours by filtration
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/003—Filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/02—Filtering elements having a conical form
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/40—Special measures for connecting different parts of the filter
- B01D2201/4076—Anti-rotational means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/104—Alumina
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/25—Coated, impregnated or composite adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/80—Water
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/455—Gas separation or purification devices adapted for specific applications for transportable use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0431—Beds with radial gas flow
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
- B01D53/0407—Constructional details of adsorbing systems
- B01D53/0438—Cooling or heating systems
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
Abstract
This filter-drier (10,110,210,310) for removing moisture from a refrigerant includes a casing (12, 112, 212, 320) having an inlet (16, 116, 216, 316) for receiving refrigerant, an outlet (18, 118, 218, 318) for discharging refrigerant and a molded core (30, 130, 230, 330). In one embodiment, the molded core (30) includes an outer surface at least in part engaging the inner surface of the casing (12). The core (30) is held within the casing (12) against axial movement by bonding with the casing or by an indentation (22) protruding into the core or both. In another embodiment , the filter-drier molded core (130) includes a filter media pad (150) bonded to the core. In another embodiment, the filter-drier (310) suitable for reversible operation includes a hollow cylindrical core (330) defining a filter media lined passage (332) and being held in place by end plates (340, 341) having opposed axial check valves (342) and offset check valves (344). Methods of manufacturing the above filter-driers (10, 110, 210, 310) are described.
Description
Technical field
The present invention relates generally to a kind of device for drying and filtering that is used for refrigeration system, especially relate to a housing and a molded device for drying and filtering core, the architectural characteristic of described device for drying and filtering core makes it have higher abrasion resistance, intensity and permeability, and it is located reliably by combining with the structure of described housing simultaneously.
Background technology
Refrigeration system uses device for drying and filtering with by filtering solid impurity in cold-producing medium and the lubricant and removing soluble impurity.Constituent in three kinds of known devices for drying and filtering is respectively random fill, compact grain and molded core.
In loose fill design, drier is trapped in the mesh screen in case desiccant particle enters in the system.Described particle is trapped in and forms a desiccant bed between described housing and the mesh screen, yet described particle is that loosely is supported in described desiccant bed.The vibration that cold-producing medium flows through the described device for drying and filtering housing that described desiccant bed or other reasons bring causes moving that each particle do not expect in described desiccant bed.The wearing and tearing that will cause described desiccant particle that contact of described desiccant particle and described housing, mesh screen or other drier.Along with increasing the weight of of described desiccant particle wearing and tearing, described drier particulate will break away from described mesh screen and circulate in described refrigeration system.
Desiccant particle like use of compact grain structure and the loose material design class, but wherein be mixed with porous metals, mesh screen, filter pad and spring so that described desiccant bed is closely knit.Compare with described loose material structure, described closely knit desiccant bed has limited the motion of each particle, has reduced the danger of wearing and tearing simultaneously, and still, this structure can't be eliminated wearing and tearing.
A molded core unit comprises that is utilized a supporting network, the molded desiccant block of filter pad and spring location.Described molded core is by forming than the particle manufacturing that granularity is littler in described loose material or the compact grain structure.The binding agent of described desiccant particle by organic or inorganic combines and forms a solid shape.This structure suppresses wearing and tearing in the mode that does not allow described movement of particles.
Usually, the housing that is used for holding the drier of described device for drying and filtering is that the weldable steel housing that is made of steel pipe and/or the rolled-up stock that welds together are to form the housing of a sealing.In addition, when described copper pipe was reduced to a specific installation dimension, copper centrifugal casting housing can be used.At welded still pipe or before drawing with the diameter that reduces described copper pipe, comprise that the intraware such as porous net, mesh screen, filter pad, drier and spring is assembled in together.The purpose of using described net and spring is in order to hold desiccant particle or desiccant core.
The known device for drying and filtering that has molded core and be incorporated herein by reference is No2556292 in the patent No., and No5440898 is disclosed in the United States Patent (USP) of No5562427 and No2551426.US Patent No 2556892 discloses a kind of core of being made by molding plate, and US Patent No 5440898 discloses a kind of molded core of utilizing fiber to gain in strength.In above-mentioned two kinds of situations, described core and external metallization housing are spaced apart and by in the lateral support system of each end location.US Patent No 5562427 discloses a kind of copper shell, and it has the groove that is spaced along the longitudinal to support prefabricated solid core.Described groove draws and forms, and is positioned at each end of described core.US Patent No 2551426 discloses a kind of prefabricated desiccant block by the inner projection support that is spaced along the longitudinal.
The present invention has overcome the demand to support system, and it makes described core locate in a kind of mode that does not disclose in the prior art.
Summary of the invention
The parts that described molded core filter need not other make described core locate in described housing, and described core forms in described housing and utilizes core to be connected with structure between the described housing and locate in described housing.The binding agent that uses in the described molded core bonds together drier, in addition, also described desiccant core and described housing is bonded together.Therefore, the motion between described core and the described housing can be suppressed, so eliminated the wearing and tearing of drier in fact.
Described device for drying and filtering makes the cold-producing medium drying that circulates by removing moisture in refrigeration system, it comprises a housing, and described housing has an inlet that is used to receive cold-producing medium, an outlet that is used for discharging refrigerant.Described housing comprises opposed end and the mid portion between described end.Molded core is configured in described housing and between described entrance and exit, cold-producing medium flows through wherein, in addition bracing or strutting arrangement between described housing and described core so that described core in described housing, locate.
According to an aspect of of the present present invention, it provides a bracing or strutting arrangement, and described device comprises at least one by the described shell inner surface projection that combines with outer surface described core that form, thereby suppresses moving axially of described core.
According to another aspect of the present invention, it provides a bracing or strutting arrangement, and described device comprises at the adhering device between surface and the described core outer surface within the described housing, to limit moving axially of described core.
According to another aspect of the present invention, it provides a projection, and described projection ringwise and extend in the outer surface of described core.
According to one side more of the present invention, it provides a housing, and described housing comprises a columniform mid portion, and described relative end is funnel-form simultaneously.
According to an aspect of of the present present invention, described core comprises a cylindrical part.
According to another aspect of the present invention, described core comprises a frusto-conically shaped portion and a passage, and the blind end of described passage is near described inlet, and openend is near described outlet.
According to one side more of the present invention, the cylindrical part of described core and the cylindrical part of described housing bond together.
According to one side more of the present invention, described core is formed by a molded drier and a binding agent manufacturing.
The present invention also provides a kind of method of making device for drying and filtering, have tubular shell and desiccant core between the entrance and exit of described device for drying and filtering, described method is included in the interior molded described desiccant core of described tubular shell and between described housing and described core bracing or strutting arrangement is set so that described core localization step.
According to an aspect of of the present present invention, described method is included in and forms a groove in the described tubular shell, around the molded desiccant core of described groove forming the step of bracing or strutting arrangement, and connection-core and the step of housing with the formation bracing or strutting arrangement.
According to an aspect of of the present present invention, described method comprises makes the other step that is formed with passage on the described core, the blind end of wherein said passage is near described inlet, and openend is near described outlet, and described method also comprises the additional step that makes described groove be U shape annular groove.
According to an aspect of of the present present invention, described method comprises that the part by the multistage elongated tubular forms tubular shell and described elongated tubular is being cut into the step that formed described groove before several sections, and pulls into a funnel shaped structure to be reduced by at least an end by the metal drawing method.
According to important aspect of the present invention, its distortion for described device for drying and filtering provides a filter that combines with described core.
The version of described device for drying and filtering makes the cold-producing medium drying that circulates by removing moisture in refrigeration system, it comprises a housing, and described housing has an inlet that is used to receive cold-producing medium, an outlet that is used for discharging refrigerant.Described housing comprises opposed end and the mid portion between described end.The molded core of the end that includes an inlet and an outlet is configured in described housing and between described entrance and exit, cold-producing medium flows through wherein, so that described core is located in described housing, a filter is bonding by molded and described core simultaneously between described housing and described core for bracing or strutting arrangement in addition.
According to an aspect of of the present present invention, at least one in described filter and the described molded core end is bonding.
According to another aspect of the present invention, described filter and described molded core outlet end are bonding.
According to another aspect of the present invention, described core comprises a passage, and the blind end of described passage is near described inlet portion, and openend is near described export department; Has filter at least a portion of described passage.
According to another aspect of the present invention, the passage of described core comprises the side of inclination.
According to an aspect of of the present present invention, it is conical that the passage of described core roughly is.
According to another aspect of the present invention, the openend of described core passage comprises an annular section, and described filter and described ring part phase-splitting are bonding.
According to another aspect of the present invention, it provides a kind of device for drying and filtering that comprises a housing, and described housing has an inlet that is used to receive cold-producing medium, an outlet that is used for discharging refrigerant.Described housing comprises opposed end and between described end and have a mid portion of inner surface.Molded core that comprises outer surface and entrance and exit end is configured in described housing and between described entrance and exit, cold-producing medium flows through wherein, so that described core is located in described housing, a filter medium is molded on the described core bracing or strutting arrangement simultaneously between the outer surface of the inner surface of described housing and described core in addition.
According to another aspect of the present invention, described bracing or strutting arrangement comprises the projection that at least one forms on described shell inner surface, and described projection combines with the outer surface of described core in case the moving axially of described core.
According to one side more of the present invention, described bracing or strutting arrangement comprises the bonding passage between described shell inner surface and described core outer surface, in order to prevent moving axially of described core.
The invention provides a kind of method of making device for drying and filtering, have tubular shell and desiccant core between the entrance and exit of described device for drying and filtering, described method comprises following step: a tubular mold is provided; A mold base that links to each other with described tubular mold is provided; One filter medium is placed on the described mold base; Be positioned over the desiccant/binder mixture in the described mould and be positioned on the described filter medium so that it is linked to each other with described core; A die cap is set above described desiccant core; And when described core is made, remove described mold base and die cap.
According to another aspect of the present invention, it provides a kind of method, and wherein said filter medium is placed on the outlet of described core, and described method also comprises the other step of using die cap to compress described desiccant/binder simultaneously.
According to an aspect of of the present present invention, described filter medium is molded on the described core.
Another distortion of described device for drying and filtering makes the cold-producing medium drying that circulates by removing moisture in refrigeration system, it comprises housing, and described housing has an inlet that is used to receive cold-producing medium, an outlet that is used for discharging refrigerant.Described housing comprises relative end and the mid portion between described end.Molded core that comprises that the arrival end and the port of export and between have a passage is configured in described housing and between described entrance and exit, cold-producing medium flows through wherein, so that described core is located in described housing, filter combines by molded and described core bracing or strutting arrangement simultaneously between described housing and described core in addition.
According to an aspect of of the present present invention, described filter is mutually bonding with two ends of described molded core.
According to another aspect of the present invention, described core passage has opposed end and has a filter thereon.
According to one side more of the present invention, described core passage is generally cylindrical.
According to one side more of the present invention, the openend of described core passage comprises an annular section, and described filter links to each other with described annular section.
According to an aspect of of the present present invention, it provides a housing, and described housing comprises an inlet that is used to receive cold-producing medium, an outlet and an opposed end plate that is used for discharging refrigerant, and described each end plate has entrance and exit, uses check valve to determine to flow to.A molded core that comprises that the arrival end and the port of export and between have a passage is configured to locate in described housing and between described opposed end plate, cold-producing medium flows through wherein, described core comprises relative entrance and exit end face, and described passage becomes cylindrical.Described filter medium comprises cylindrical part and the annular end that is arranged in described passage, and it combines by molded and described core.
According to another aspect of the present invention, described each end plate comprises two openings, and one of them opening aligns with described passage, another opening described passage of setovering.
According to one side more of the present invention, the inlet biasing of described end plate, outlet is alignd with described passage.
According to another aspect of the present invention, it provides a kind of manufacturing to be used for the method for the desiccant core of heat pump drying filter, described device for drying and filtering has a tubular shell and a two-way valve system that makes fluid two-way flow between the entrance and exit of described core, and described method comprises following step: provide a tubular mold to form the external diameter of described core; A newel is set to form the internal diameter of described core in described tubular mold; A mold base that links to each other at an end of described core with described tubular mold is provided; Filter medium is positioned on described mold base and the described newel; Be positioned over the desiccant/binder mixture in the described mould and be positioned on the described filter medium; An end that is positioned over filter medium on the described desiccant/binder and is positioned at described core to be being connected it with described core, and when described core is made, removes described mould.
According to class of the present invention on the one hand, described method comprises that the described desiccant/binder of compression is to guarantee good step of connecting and to make described filter medium by molded and described core step of connecting.
Described device for drying and filtering is quite cheap and be easy to manufacturing, and is particularly effective to realizing purpose of the present invention simultaneously.
Description of drawings
Fig. 1 is the sketch that uses the refrigeration system of a device for drying and filtering assembly in liquid line and aspiration line;
Fig. 2 is the longitudinal sectional view of described device for drying and filtering assembly;
Fig. 3 is the enlarged partial view of described brace groove;
Fig. 4 is the side view of described device for drying and filtering assembly;
Fig. 5 is the cutaway view along Fig. 2 line 5-5;
Fig. 6 is the cutaway view along Fig. 2 line 6-6;
Fig. 7 is the longitudinal sectional view of the deformable body of described device for drying and filtering assembly;
Fig. 8 is the cutaway view along Fig. 7 line 8-8;
Fig. 9 is the longitudinal sectional view of another deformable body of described device for drying and filtering assembly;
Figure 10 is the cutaway view along Fig. 9 line 10-10;
Figure 11 is the longitudinal sectional view of another deformable body of described device for drying and filtering assembly;
Figure 12 is the cutaway view along Figure 11 line 12-12;
Figure 13 is the cutaway view along Figure 11 line 13-13;
Figure 14 is the sketch of a heat pump that uses the described device for drying and filtering of Figure 11-13 in reversible fluid line;
Figure 15-17 briefly shows first, second and third stage of described device for drying and filtering that forms Fig. 9; And
Figure 18-20 briefly shows first, second and third stage of the described device for drying and filtering core that forms Figure 11.
The specific embodiment
At first be the Reference numeral among Fig. 1 with reference to the accompanying drawings, can understand: one or more devices for drying and filtering 10 are used in the refrigeration system 1, described refrigeration system comprises: 3, one condensers 4 of 2, one vaporizers of a compressor and the adjusting device 5 such as thermostatic mixing valves.
In the embodiment shown in the figures, a hot steam pipe line 6 is between described compressor 2 and described condenser 4.A liquid line 7 is between described condenser 4 and described adjusting device 5, and an aspiration line 8 is between described vaporizer 2 and described compressor 2 simultaneously.First device for drying and filtering 10 is on the pipeline 7 between described condenser 4 and the described adjusting device 5.In addition, in the embodiment shown in the figures, second device for drying and filtering 110 is on the aspiration line 8 between described vaporizer 3 and the described compressor 2.
More precisely, described device for drying and filtering 10 comprises a housing 12 and a molded core 30.Described housing 12 16, the 18 and columniform mid portions 20 of nozzle connection that include an inlet and an outlet.As Fig. 3 and shown in Figure 6, described mid portion 20 comprises an inwardly protruded U shape annular groove 22 and relative infundibulate transition part 24, as shown in the figure, and the more approaching described groove 22 of described outlet 18 more described inlets 16.
Described molded core 30 is positioned at described housing 12 and comprises a cylindrical part 32 that combines with described circular cylindrical shell body 20.Described molded core 30 can also comprise that one and described housing are isolated and be positioned at the frusto-conically shaped portion 34 of described arrival end and passage 36 that one has a blind end 38 and an openend 40 and is positioned at the port of export of described housing.
Described molded permeable desiccant core 30 comprise binding agent and after described annular groove 24 forms, described transition portion 24 is molded the location before forming.In the embodiment shown in the figures, described quite short tubular shell 12 can be formed by the part under a quite long copper pipe cutting.In this case, described groove can be cut preceding generation at described elongated copper pipe.In addition, in the embodiment shown in the figures, described tubular shell is formed by centrifugally cast copper production, and described transition portion produces by drawing operation.After described core was molded, described core was located, and the cylindrical part 32 of its outer surface adheres to the madial wall of described circular cylindrical shell body portion 20 and contacts combination simultaneously.Be provided with by this structure, described annular groove 22 is molded in the described core.Along with the molding process of described core, described transition portion is reduced to funnel-shaped structure shown in the drawings, and described entrance and exit joint 16 and 18 is positioned at relative end simultaneously.
By the structural configuration of housing shown in the drawings and core, outside the described core within surface and the described housing combining between the surface make that the described core that is molded is located, described combination has constituted a bracing or strutting arrangement.In addition, described annular groove 22 be arranged so that described core 30 between itself and described housing 12 tongue and the effect of groove under machinery location and constituted other bracing or strutting arrangement.So, described core can be subjected to one or two the support in two bracing or strutting arrangements.
Utilized the intensity of the described core that is molded and increased the described core 30 mobile required power in described housing 12 that makes usually around the molded described desiccant core of described groove.Because being combined in during production process or the installation procedure when destroyed between described core that is molded that the use of binding agent brings and described housing, the mechanical stop that described groove brings is enough to prevent that described core from moving in described housing.
The structure of the described core that is molded and permeability optimum are to guarantee sufficient refrigerant flow characteristics, the weight of desiccant core and strainability.
In operating process, the cold-producing medium that flows through described system enters described housing 12 by described inlet 16, and enters described core 30 by the surface of frusto-conically shaped portion 34.Described cold-producing medium enters described passage 36 via described frusto-conically shaped portion 34 and described cylindrical part 32 as shown by arrows, and is discharged by outlet 18.Have some advantage that can receive described cold-producing medium by a bigger surface although should be understood that described frusto-conically shaped portion 34, described core 30 can not have a frusto-conically shaped portion.
Fig. 7 and 8 show one with Fig. 1-6 shown in device for drying and filtering 10 similar devices for drying and filtering 110, it comprises a housing 112 with a core that is molded 130, within the described housing 112 outside surface and the described core 130 between the surface combine and an annular groove 122 be arranged so that the described core that is molded 130 location, wherein said annular groove 122 makes described core 130 machineries locate by the effect of tongue between described core 130 and the described housing 120 and groove.Based on this reason, identical parts have adopted similar Reference numeral except prefix " 1 ".The deformable body 110 of described device for drying and filtering is in the filter media pad 150 that links to each other with described core in the exit of described core 130 with difference place of described device for drying and filtering 10.Bond strength between described filter pad 150 and the described core 130 make described filter pad 150 located securely and eliminated to the outlet supporting network demand.Described refrigeration system does not change as shown in Figure 1.
More precisely, referring to Fig. 7 and Fig. 8, described device for drying and filtering 110 comprises a housing 112 and a core that is molded 130.Described housing 112 include an inlet and an outlet nozzle connection 116,118 and a columniform mid portion 120.Described mid portion 120 comprises an inwardly protruded groove 122 between described outlet 118 and described inlet 116, and described housing 112 comprises relative funnel shaped part 124 simultaneously.
The described core that is molded 130 is arranged in described housing 112, and cylindrical structure has the generally flat annular end 138,140 that an entrance and exit is provided for described toroidal cores.
The described permeable desiccant core 130 that is molded comprises a binding agent and locatees in described housing 112 after described annular groove 122 forms and before 124 formation of described transition part.After described core 130 was molded, the outer surface of described core 130 contacted with wall adhesive bond within the described housing 112.As the embodiment of front, described core 130 can by described housing groove 122 with and/or locate with the adhesive attraction that is brought that combines between the described housing 112 by the described core that is molded 130.
Different with the embodiment shown in Fig. 1-6, described device for drying and filtering 110 comprises a filter medium air ring 150 that links to each other with described housing 112.In the embodiment shown in the figures, described pad 150 is positioned at the described straight port of export 140 of the described core that is molded 130.Because in this structure, described pad 150 is not subjected to the effect of the mobile compression stress of bringing of described cold-producing medium, therefore the thickness of described pad significantly reduces can not cause the restriction to described flow of refrigerant, should be understood that the compression of described filter pad 150 has changed mobile and filtering feature.Because described filter pad 150 is not by compression, so its initial characteristic is kept.Described arrival end 138 with and/or the port of export use one to pay somebody's debt and expect repayment later and have an advantage, it can be eliminated and use wire netting or similar device to make the demand of described filter pad location.A filter medium that is molded together with described desiccant core can be used for the described liquid line or the aspiration line of refrigeration system shown in Figure 1.
Fig. 9 and 10 shows second deformable body 210 of described device for drying and filtering.In this embodiment, similarly parts adopt similar Reference numeral, except prefix number " 2 ".As shown in the figure, described device for drying and filtering 210 comprises a similar housing 212 of embodiment with the front, but described core 230 differences, its arrival end has a frusto-conically shaped portion 234, and the port of export has a recessed tapered portion 236 and a ring part 240.This layout makes the area of entrance and exit of described core 230 increase.More precisely, the shape of described filter media pad 250 is consistent with the shape of described recessed tapered portion 236 and ring part 240, because its pressurized not, so it helps the optimization of flow behavior.
Figure 11-13 shows the 3rd embodiment of described device for drying and filtering 310.This device is applicable to the two-way liquid line of the simplified structure shown type heat pump of Figure 14.Described heat pump 300 needs a device for drying and filtering with reversible construction that can two-way flow.Described heat pump 300 comprises that 302, one condensers 303 of 301, one vaporizers of a compressor and two each and every one have the heat regulating valve device 304 of a check valve 305.Two-way liquid line 306 between described two heat regulating valve devices 304 comprises a heat pump drying filter that is shown specifically in Figure 11-13.
Described two-way device for drying and filtering 310 comprises one two tank shell 320, and described housing comprises opposed half one 322 and 324 that links to each other at a tie point 326 places by welding or other modes.The cylindrical core 330 that has formed the hollow of a filter embedding passage 332 is supported by the end plate 340 and 341 of annular in described housing 320.Described each annular endplate 340 and 341 comprises the check valve 342 of centering and the check valve 344 of an axialy offset vertically.The check valve of described centering vertically comprise one with central opening 348 welding of described each end plate 340 and 341 or the tube-like piece 346 that links together in other way.Described tube-like piece 346 comprises: one is positioned at described outer end and is used to support the annular ledge 360 of a spring 362 and one and is positioned at the mold pressing bearing 364 that described inner end is used to support a ball 366.The check valve 344 and the described check valve 342 of described biasing are similar, and it comprises a tube-like piece 346 that welds or link together in other way with the offset openings 368 of described each end plate 340 and 341.Described tube-like piece 346 comprises that one is positioned at described inner end and is used to support the annular ledge 360 of a spring 362 and one and is positioned at the mold pressing bearing 364 that described outer end is used to support a ball 366.Has a gap 370 between the tube-like piece 342,344 of described each entrance and exit joint 316,318 and corresponding centering vertically.
Described cylindrical core 320 comprises a filter medium 350 with a tube 352 and annular end 354,356.The assembly of described core 320 and described filter medium 350 is supported between the check valve 342,344 of described centering vertically.
In operating process, in position shown in Figure 11, cold-producing medium enters described inlet 316, and radially inwardly flow through described gap 370 to open described check valve 344, radially inwardly flow through described tubular core 330 and described filter medium 350 subsequently and enter passage 332 with described check valve 342 centerings, then flow out by described outlet 318.In reverse operating, described program is the same, and just outlet becomes inlet.
Just as known for one of ordinary skill in the art, drier the most frequently used in the described device for drying and filtering comprises molecular sieve, activated alumina and activated carbon.Not too commonly used is silica gel.Binding agent can be an organic matter, normally such as condensate epoxy or phenolic, or such as the inorganic matter of carbonate or silicate.Just as known for one of ordinary skill in the art, the porous of described core depends on selected concrete drier and binding agent, required turnover rate and other factors that can determine fast.
Described egress filtering medium is normally such as glass fibre, polyester and polyacrylic establishment or twine fiber.The filter media material that preferably can use a kind of loose fiber that makes it possible to the system that enters to be eliminated.
Described filter medium is preferably in during the described molding process and is connected with described desiccant core and need not other binding agent.Described this connection can be finished in second step, but does not wish so, because also need other step like this.
Just as known for one of ordinary skill in the art, the type of described filter medium and density are based on the solubility such as cold-producing medium and lubricant, useful life and filtering feature and to be selected a pad or the degree of depth of filter element be that the screen pack of a 5-80 micron of 0.1 inch is enough to for most device for drying and filtering, but for the used filter medium of a specific purpose, then need those skilled in the art to determine the screen pack and the degree of depth that this purpose is suitable for.
Figure 15-17 and Figure 18-20 briefly shows the several stages of pie graph 9 and device for drying and filtering core method shown in Figure 11 respectively.
At first referring to Figure 15-17, should find out by Figure 15, described device for molding 400 comprises at first: 402, one on the molded support in bottom of the outlet shape of a definite described core has support ring 405 and has determined side pipe 404 and a top moulded closure 406 of determining the entrance shape of described core of the diameter of described core.In the process that forms described core, described side pipe 404 is placed on the described molded base 402.In the embodiment shown in the figures, adding described desiccant/binder mixture so that described filter medium is with before described core is connected securely, a prefabricated pyramid type filter medium 250 is placed on the described molded base.As shown in figure 16, described desiccant/binder mixture is placed on the low position of more described frusto-conically shaped portion in the described pipe.Subsequently, shown in Figure 16 dotted line, described moulded closure 406 is placed in the described pipe, the sign block 408 of described desiccant mixture pressurized in Figure 16 simultaneously, thus in described core, having eliminated unnecessary hole and guarantee and the molded core that well is connected of described filter medium as shown in figure 17 finished.Described core binding agent is placed, and described molded base 402 and described moulded closure 406 are removed by described mould simultaneously.When described core will be molded together with described housing, described side pipe 404 became housing, need not to be removed by described core but became the part of described device for drying and filtering.As shown in figure 17, the transition end that reduces gradually of described side pipe 404 is removed back formation at described molded base 402 and described moulded closure 406.
Referring to Figure 18-20, as seen from Figure 18, described device for molding is used to make the desiccant core of the employed device for drying and filtering of heat pump of a type shown in Figure 11.Described device for molding 500 comprises at first: 502, one newels 504 of a molded base and a tubular mold 506.Be that pipe 352 construction of filter media part and annular end 354 are placed on described molded base 502 and outside forming described core, form on the described newel 504 in footpath within the described core in the described pipe 506 in footpath.As shown in figure 19, described desiccant/binder mixture 505 is added, its highly be slightly higher than the finished product core length, an annular filter medium 356 is placed in the described mould simultaneously, subsequently moulded closure 508 be assembled and pressurized to the finished size of device for drying and filtering, in this case, unnecessary hole is eliminated and is made and guaranteed with good being connected of described filter medium in the described core.Described core binding agent is added, described molded base 502 of while, and newel 504, pipe 506 and moulded closure 508 are removed, and just stay the described core with filter medium of preparing to be used for heat pump drying filter shown in Figure 11 as shown in figure 20.
Invention has been described with reference to the structure of the device for drying and filtering core an of the best above.But top description should not regarded a kind of restriction as, and based on disclosed theory and claim scope required for protection, various distortion can be made.
Claims (41)
1. a device for drying and filtering is used for making the cold-producing medium drying that circulates in refrigeration system by removing moisture, and described device for drying and filtering comprises:
A housing, described housing have the inlet and the outlet that is used for discharging refrigerant that are used to receive cold-producing medium, and described housing comprises opposed end and the mid portion between described end;
A molded core, described molded core are in described housing and between described entrance and exit, and cold-producing medium flows through wherein; And
Bracing or strutting arrangement, described bracing or strutting arrangement between described housing and described core so that described core location.
2. device for drying and filtering as claimed in claim 1 is characterized in that: described bracing or strutting arrangement comprises that at least one forms projection by described shell inner surface, and this projection combines with the outer surface of described core, thereby suppresses moving axially of described core.
3. device for drying and filtering as claimed in claim 1 is characterized in that: described bracing or strutting arrangement comprises at the adhering device between surface and the described core outer surface within the described housing, in order to limit moving axially of described core.
4. device for drying and filtering as claimed in claim 2 is characterized in that: described projection ringwise and extend in the outer surface of described core.
5. device for drying and filtering as claimed in claim 1 is characterized in that: described housing comprises a columniform mid portion, and described opposed end is funnel-form simultaneously.
6. device for drying and filtering as claimed in claim 1 is characterized in that: described core comprises a cylindrical part.
7. device for drying and filtering as claimed in claim 1 is characterized in that: described core comprises a frusto-conically shaped portion and a passage, and the blind end of described passage is near described inlet, and the openend of described passage is near described outlet.
8. device for drying and filtering as claimed in claim 7 is characterized in that: the cylindrical part of described core and the cylindrical part of described housing bond together.
9. device for drying and filtering as claimed in claim 1 is characterized in that: described core is formed by a molded drier and a binding agent manufacturing.
10. method of making device for drying and filtering, described device for drying and filtering has tubular shell and desiccant core between entrance and exit, and described method comprises the steps:
Molded described desiccant core in described tubular shell; And
Between described housing and described core, bracing or strutting arrangement is set so that described core location.
11. the method for manufacturing device for drying and filtering as claimed in claim 10 is characterized in that: described method comprises described core and described case bonding to form the step of described bracing or strutting arrangement.
12. a method of making device for drying and filtering, described device for drying and filtering has tubular shell and desiccant core between entrance and exit, and described method comprises the steps:
In described tubular shell, form a groove, around described groove in described tubular shell molded desiccant core to make it consistent with described groove structure.
13. the method for manufacturing device for drying and filtering as claimed in claim 12 is characterized in that: described method comprises to make and is formed with passage on the described core, and the blind end of wherein said passage is near described inlet, and openend is near described outlet.
14. the method for manufacturing device for drying and filtering as claimed in claim 12 is characterized in that: described method comprises the step that makes described groove be U shape annular groove.
15. a method of making device for drying and filtering, described device for drying and filtering has tubular shell and desiccant core between entrance and exit, and described method comprises following step:
The pipe of one elongated tubular is divided into several sections;
On described each part, form groove;
Cut described each part to form a plurality of tubular shells with relative end; And
A molded desiccant core in described each tubular shell is so that its structure with described groove is consistent.
16. the method for manufacturing device for drying and filtering as claimed in claim 15 is characterized in that: described method comprises by the metal drawing method makes at least one end of described each pipe portion be decreased to the step of a funnel-shaped structure gradually.
17. one kind by removing moisture makes the cold-producing medium drying that circulates in refrigeration system device for drying and filtering, described device for drying and filtering comprises:
A housing, described housing have the inlet and the outlet that is used for discharging refrigerant that are used to receive cold-producing medium, and described housing comprises opposed end and the mid portion between described end;
A molded core, described molded core end that includes an inlet and an outlet, it is in described housing and between the described inlet and described outlet of described housing, cold-producing medium flows through wherein;
Bracing or strutting arrangement, described bracing or strutting arrangement between described housing and described core so that described core location; And
A filter bonding with described core.
18. device for drying and filtering as claimed in claim 17 is characterized in that: at least one in described filter and the described molded core end is bonding.
19. device for drying and filtering as claimed in claim 18 is characterized in that: described filter is connected with the outlet end of described molded core.
20. device for drying and filtering as claimed in claim 18 is characterized in that: described core comprises a passage, and the blind end of described passage is near described inlet portion, and openend is near described export department; And
Has filter at least a portion of described passage.
21. device for drying and filtering as claimed in claim 20 is characterized in that: the passage of described core comprises the side of inclination.
22. device for drying and filtering as claimed in claim 20 is characterized in that: the passage of described core roughly is conical.
23. device for drying and filtering as claimed in claim 20 is characterized in that: the openend of the passage of described core comprises an annular section, and described filter is connected with described annular section.
24. one kind by removing moisture makes the cold-producing medium drying that circulates in refrigeration system device for drying and filtering, described device for drying and filtering comprises:
A housing, described housing have the inlet and the outlet that is used for discharging refrigerant that are used to receive cold-producing medium, and described housing comprises opposed end and between described end and have a mid portion of inner surface;
A molded core, described molded core comprise an outer surface and entrance and exit end, and it is in described housing and between the described inlet and described outlet of described housing, cold-producing medium flows through wherein;
Bracing or strutting arrangement, described bracing or strutting arrangement between described shell inner surface and described core outer surface so that described core location; And
A filter medium, it is overmolded to described core.
25. device for drying and filtering as claimed in claim 24 is characterized in that: described bracing or strutting arrangement comprises the projection that at least one forms on described shell inner surface, and described projection combines with the outer surface of described core in case the moving axially of described core.
26. device for drying and filtering as claimed in claim 24 is characterized in that: described bracing or strutting arrangement comprise between described shell inner surface and described core outer surface, in order to prevent the axially movable jockey of described core.
27. a method of making device for drying and filtering, described device for drying and filtering has tubular shell and desiccant core between entrance and exit, and described method comprises following step:
A tubular mold is provided;
A mold base that links to each other with described tubular mold is provided;
One filter medium is placed on the described mold base;
Be positioned over a desiccant/binder mixture in the described mould and be positioned on the described filter medium so that it is linked to each other with described core;
A die cap is set above described desiccant core; And
When described core is made, remove described mold base and die cap.
28. the method for manufacturing device for drying and filtering as claimed in claim 27 is characterized in that: described filter medium is placed on the outlet of described core.
29. the method for manufacturing device for drying and filtering as claimed in claim 27 is characterized in that: described method also comprises the step of using die cap to compress described desiccant/binder.
30. the method for manufacturing device for drying and filtering as claimed in claim 27 is characterized in that: described filter medium is molded on the described core.
31. one kind by removing moisture makes the cold-producing medium drying that circulates in refrigeration system device for drying and filtering, described device for drying and filtering comprises:
A housing, described housing have the inlet and the outlet that is used for discharging refrigerant that are used to receive cold-producing medium, and described housing comprises opposed end and the mid portion between described end;
A molded core, described molded core comprise inlet end and the outlet end that has a passage therebetween, in described housing and between the described inlet and described outlet of described housing, cold-producing medium flows through wherein;
Bracing or strutting arrangement, described bracing or strutting arrangement between described housing and described core so that described core location; And
A filter that is connected with described core.
32. device for drying and filtering as claimed in claim 31 is characterized in that: described filter links to each other with two ends of described molded core.
33. device for drying and filtering as claimed in claim 31 is characterized in that: the passage of described core has opposed open end, and described passage has a filter.
34. device for drying and filtering as claimed in claim 31 is characterized in that: the passage of described core is generally cylindrical.
35. device for drying and filtering as claimed in claim 33 is characterized in that: the openend of the passage of described core comprises an annular section, and described filter links to each other with described annular section.
36. one kind by removing moisture makes the cold-producing medium drying that circulates in the heat pump refrigerating system device for drying and filtering, described device for drying and filtering comprises:
One housing, described housing comprise an inlet that is used to receive cold-producing medium, an outlet and an opposed end plate that is used for discharging refrigerant, and described each end plate has entrance and exit, and described entrance and exit has the check valve of determining the flow direction;
A molded core, described molded core comprises the arrival end and the port of export that has a passage therebetween, and it is located in described housing and between described relative end plate, and cold-producing medium flows through wherein, described core comprises relative entrance and exit end face, and described passage is cylindrical; And
A kind of filter medium, described filter medium comprise cylindrical part and the annular end that is arranged in described passage, combine by molded and described core.
37. device for drying and filtering as claimed in claim 36 is characterized in that:
Described each end plate comprises two openings;
A described opening and described passage centering, described another opening departs from described passage.
38. device for drying and filtering as claimed in claim 37 is characterized in that: the inlet biasing of described end plate, outlet and described passage axial alignment.
39. a manufacturing is used for the method for the desiccant core of heat pump drying filter, described device for drying and filtering has a tubular shell and a two-way valve system that makes fluid two-way flow between the entrance and exit of described core, and described method comprises following step:
Provide a tubular mold to form the external diameter of described core;
A newel is set to form the internal diameter of described core in described tubular mold;
A mold base that links to each other at an end of described core with described tubular mold is provided;
One filter medium is positioned on described mold base and the described newel;
Be positioned over a desiccant/binder mixture in the described mould and be positioned on the described filter medium;
An end that is positioned over a filter medium on the described desiccant/binder and is positioned at described core to be being connected it with described core, and
When described core is made, remove described mould.
40. the method for the desiccant core of manufacturing device for drying and filtering as claimed in claim 39 is characterized in that: described method comprises the step of using a moulded closure to compress described desiccant/binder.
41. the method for the desiccant core of manufacturing device for drying and filtering as claimed in claim 39 is characterized in that: described filter medium is connected by molded and described core.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/057,207 | 2002-01-25 | ||
| US10/057,207 US6852150B2 (en) | 2002-01-25 | 2002-01-25 | Molded core filter drier |
| US10/195,239 US6835235B2 (en) | 2002-01-25 | 2002-07-15 | Molded core filter drier with filter media molded to core for use in heat pump systems |
| US10/195,257 US6835236B2 (en) | 2002-01-25 | 2002-07-15 | Molded core filter drier with filter media molded to core |
| US10/195,239 | 2002-07-15 | ||
| US10/195,257 | 2002-07-15 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1643315A true CN1643315A (en) | 2005-07-20 |
| CN1303384C CN1303384C (en) | 2007-03-07 |
Family
ID=27670380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB038069415A Expired - Fee Related CN1303384C (en) | 2002-01-25 | 2003-01-23 | Molded core filter drier |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1485662A1 (en) |
| CN (1) | CN1303384C (en) |
| HK (1) | HK1080931A1 (en) |
| WO (1) | WO2003064941A1 (en) |
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| CN109529528A (en) * | 2018-12-28 | 2019-03-29 | 江苏利柏特股份有限公司 | Molecular sieve adsorber is used in the production of ice chest module |
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-
2003
- 2003-01-23 CN CNB038069415A patent/CN1303384C/en not_active Expired - Fee Related
- 2003-01-23 EP EP03734975A patent/EP1485662A1/en not_active Withdrawn
- 2003-01-23 WO PCT/US2003/001920 patent/WO2003064941A1/en not_active Application Discontinuation
-
2006
- 2006-01-20 HK HK06100912A patent/HK1080931A1/en not_active IP Right Cessation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103201006A (en) * | 2010-10-05 | 2013-07-10 | 埃尔比国际有限公司 | A filter for liquids, in particular for electric valves of household appliances and the like |
| CN103201006B (en) * | 2010-10-05 | 2015-05-06 | 埃尔比国际有限公司 | A filter for liquids, in particular for electric valves of household appliances and the like |
| CN109529528A (en) * | 2018-12-28 | 2019-03-29 | 江苏利柏特股份有限公司 | Molecular sieve adsorber is used in the production of ice chest module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1303384C (en) | 2007-03-07 |
| EP1485662A1 (en) | 2004-12-15 |
| WO2003064941A1 (en) | 2003-08-07 |
| HK1080931A1 (en) | 2006-05-04 |
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