CN1080132C - Rolled threaded filter bowl - Google Patents
Rolled threaded filter bowl Download PDFInfo
- Publication number
- CN1080132C CN1080132C CN97194320A CN97194320A CN1080132C CN 1080132 C CN1080132 C CN 1080132C CN 97194320 A CN97194320 A CN 97194320A CN 97194320 A CN97194320 A CN 97194320A CN 1080132 C CN1080132 C CN 1080132C
- Authority
- CN
- China
- Prior art keywords
- filter
- cups
- sleeve
- spiral shell
- blind end
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims description 11
- 238000000576 coating method Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000001914 filtration Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 230000000712 assembly Effects 0.000 description 6
- 238000000429 assembly Methods 0.000 description 6
- 239000012530 fluid Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D27/00—Cartridge filters of the throw-away type
- B01D27/08—Construction of the casing
-
- 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
- B01D35/30—Filter housing constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Filtering Materials (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
A filter bowl (8) is disclosed. The filter bowl (8) includes an elongated canister having an open end (16), a closed end and a wall having an exterior surface (26), the exterior surface (26) having a plurality of rolled threads (24). The exterior surface (26) includes an unthreaded portion (28) disposed between the open end (16) and the plurality of rolled threads (24). The filter bowl (8) is preferably made of steel and is produced in a process including the steps of: 1) deep drawing the elongated canister, and 2) rolling threads onto the exterior surface of the canister.
Description
Background of invention
The mutual contrast of related application
The application requires the U.S. Provisional Patent Application No.60/016 early than submission on May 2nd, 1996,724 rights and interests.
1. invention field
The present invention relates to a kind of be used for the middle pressure filter with rolled threaded filter a set of cups.
2. the description of prior art
Those middle pressure filters such as the hydraulic oil system that is used for Hydraulically Operated Equipment must bear greater than 28kg/cm
2Pressure.And, they with withstanding pressure repeatedly or ringing.Traditional middle pressure filter has a metal a set of cups that is formed from steel usually or sleeve and and is contained in filter element in this a set of cups.This a set of cups is connected in a filtering head, and this filtering head is communicated with by the conduit phase fluid that hydraulic fluid is arranged with one.This structure of a set of cups and filter element is made into a unit independently.The openend of sleeve is shaped on screw thread, in order to engage with filtering head.This filter is called " screw-in " formula filter in prior art.Whole a set of cups is screwed on the filtering head together with the filter element above it, thereby is communicated with the conduit phase fluid.
It is dirty because of use to have served as the filter element part, thereby when reaching its service life, the whole filter that comprises filter element and a set of cups can be unloaded down and disposed from filtering head.Because filter element and a set of cups constitute a unit independently, thereby dispose filter element and also mean the filter a set of cups is disposed.With these two parts of traditional screw-in filter, promptly dirty filter element and metal a set of cups are disposed very and are wasted simultaneously, because a set of cups is not dirty, and this way is also unfavorable aspect environmental protection.
A kind of solution of this problem is to adopt reusable metal (for example aluminium) a set of cups of extruding, and it has screw thread and is used for engaging with filtering head.This screw thread is normally processed on the outer surface of metal.Because processing technology, the cover wall of cup in the machining screw zone must be thicker relatively, for example is about 1.27 centimetres.Processing technology all fails the trial that screw thread is machined on the thin-walled a set of cups usually, because processing technology can be cut the thickness that wears wall of cup fully, thereby a set of cups is scrapped.
Need reduce the screw thread quantity on a set of cups as much as possible.In the installation and removal process, being screwed into and rotating the also less of less needed a set of cups of screw thread.Yet when the screw thread negligible amounts, thread depth (tooth paddy is to the tooth peak) must increase.Bigger thread depth just requires the wall of a set of cups thicker relatively, is used for forming screw thread to allow cutting enough materials.The middle pressure filter does not need the relative thicker filtration a set of cups of this wall to withstand the internal pressure of filtration.Like this, it is not to be essential with respect to their pressure rating that heavy wall filters the employed amount of metal of a set of cups, and only is for machining screw in the above.
In addition, the screw thread of processing may change the metallurgical characteristics of a set of cups metal unfriendly.This screw thread also may produce stress in a set of cups.The screw thread of making by machining has coarse surface usually, thereby is easy to embed rubbish, dust etc.
United States Patent (USP) 4,783 has just disclosed the filter a set of cups with thread cutting in 271 and 4,199,454, therefore has above-mentioned problems.
Therefore, need a kind of threaded filter a set of cups of the reusable and thin-walled being convenient to install, and still can bear middle pressure.
Brief summary of the invention
This need the realization by the present invention, it is a kind of filtration a set of cups, comprises an elongated sleeve, and this sleeve has an openend, a blind end and the wall of an outer surface is arranged, and this outer surface has the multistrand rolling screw thread.Be provided with a unthreaded portion between openend and this multistrand rolling screw thread.Best, this sleeve is formed from steel.
The thickness of sleeve wall preferably is about 0.114 to 0.173 centimetre, can bear to be about 56kg/cm
2Internal pressure, and have 168kg/cm at least
2Least limit pressure.Per 10 centimetres preferably have 15 to 24 spiral shell teeth on the outer surface of openend.
Blind end is provided with one and is preferably hexagonal torque nut, is used for the filter a set of cups is tightened to filter.
Best, the outer surface of sleeve is coated with a powder coating, and it is from the terminal spiral shell tooth extend through blind end and the torque nut of many screw threads.
The present invention also comprises a filter assemblies, and it has an elongated sleeve, and this sleeve has an openend, a blind end and the wall of an outer surface is arranged, and this outer surface has the unthreaded portion of multistrand rolling screw thread and between openend and multistrand rolling screw thread.Be provided with a filter element in the sleeve, many engage threads of an interface head and sleeve, and be communicated with fluid stream phase fluid.One sealing ring, preferably O type ring centers on unthreaded portion, in order to elongate sleeve is encapsulated in the filter assemblies.One torque nut, preferably six-sided nut is fixed on the blind end, with the surface that provides a pair of sleeve to apply torsion, is used for it is installed in the filter assemblies.Sleeve preferably is formed from steel, and per 10 centimetres preferably have 15 to 24 spiral shell teeth.
The present invention also comprises a kind of method of making threaded filter a set of cups, and this method may further comprise the steps: a) deep-draw one elongate sleeve, this sleeve have the wall that an openend, a blind end and have an outer surface; And b) on this outer surface, rolls out many screw threads.Elongate sleeve preferably is formed from steel.Between the openend of sleeve and many screw threads on the outer surface, be provided with a unthreaded portion.The inventive method also comprises the blind end that a torque nut is connected in sleeve, and the terminal spiral shell tooth from many screw threads carries out coating up to blind end and torque nut on the outer surface of sleeve.
The accompanying drawing summary
Fig. 1 is the cutaway view of filter assemblies of the present invention, and wherein filter element is by partly cut-away;
Fig. 2 is the cutaway view of the disconnection of filter sleeve of the present invention;
Fig. 3 is the enlarged drawing that the filter sleeve mid point slip of Fig. 2 encloses part.
The description of preferred embodiment
The present invention is a kind of filter assemblies as shown in Figure 1.This filter assemblies 2 has an interface head 4, and this interface headband has interface head inlet 6 and interface head outlet 12.Fluid enters interface head inlet 6, and inflow filter a set of cups or sleeve 8, the filter element 10 and flow out interface head outlet 12 of flowing through.Between the flange 18 of the openend 16 of filter sleeve and interface head 4, be provided with a sleeve O type ring 14.The inner flange 22 of solderless wrapped connection oral 4 and filter element 10 are provided with filter element O type ring 20.
In Fig. 2, illustrate in greater detail filter sleeve 8.The outer surface 26 that filter sleeve 8 is in close proximity to openend 16 has a unthreaded portion 28.The surface that this unthreaded portion 28 provides a confession that sleeve O type ring 14 is set, this O type ring are used for sealing in interface head 4.
This many screw threads 24 per 10 centimetres preferably include 15 to 24 spiral shell teeth, per 10 centimetres preferably include 15 spiral shell teeth on the outer surface 26 of filter sleeve 8.The thickness of the wall 34 of filter sleeve 8 is preferably between about 0.114 to 0.168 centimetre, preferably between 0.160 to 0.173 centimetre.Filter sleeve 8 is made of metal, steel preferably, and preferably have about 56kg/cm
2Maximum working pressure (MWP) and 168kg/cm at least
2Least limit pressure.
As the expression in detail of institute among Fig. 3, the height of each spiral shell tooth is the tooth paddy of spiral shell tooth 36 and the peak-to-peak distance of tooth of spiral shell tooth 38.The height h of spiral shell tooth preferably is about 0.114 to 0.157 centimetre.Spiral shell tooth paddy 36 and spiral shell tooth peak 38 all have the plane surface of the wall 25 that is parallel to sleeve 8.Preferably be about 0.381 to 0.432 centimetre apart from d between the leading edge of the flat portion of adjacent Luo Chifeng.Each spiral shell tooth has a front portion 40, and the flat portion at it and spiral shell tooth paddy 36 and spiral shell tooth peak 38 forms an angle α.Each spiral shell tooth also has a rear portion 42, and it is forming an angle β with the flat portion at spiral shell tooth paddy 36 and spiral shell tooth peak 38 on the direction at anterior 40 angle.Anterior 40 be about 20 degree perpendicular to the flat portion of spiral shell tooth paddy 36 and perpendicular to the formed angle α in a plane of wall 25.Rear portion 42 be about 10 degree perpendicular to the flat portion of spiral shell tooth paddy 36 and perpendicular to the formed angle β in a plane of wall 25.
The present invention also comprises a kind of method of making threaded filter a set of cups.Manufacture method of the present invention comprises: deep-draw one elongate sleeve, this sleeve have the wall that an openend, a blind end and have an outer surface; And on this outer surface, roll out many screw threads.Between openend and many screw threads, be provided with a unthreaded portion of outer surface.The formed screw thread of method of the present invention is preferably to similar to the described screw thread of filter sleeve of the present invention.Method of the present invention also comprises the blind end that a torque nut is connected in sleeve.Method of the present invention also comprises from a terminal spiral shell tooth to blind end and torque nut covers a coating of outer surface, preferably a powder coating.
Though with reference to the embodiment that is discussed the present invention is described in detail, those skilled in the art can carry out various variations to it under the situation that does not break away from the spirit and scope of the present invention.Therefore, scope of the present invention should be determined by appended claims.
Claims (14)
1. filter a set of cups comprises: an elongated sleeve, it has the wall that an openend, a blind end and have an outer surface, it is characterized in that described outer surface has the screw thread of multistrand rolling.
2. filter a set of cups as claimed in claim 1 is characterized in that, described outer surface comprises that also one is arranged on the unthreaded portion between described openend and the described multistrand rolling screw thread.
3. filter a set of cups as claimed in claim 2 is characterized in that described sleeve is formed from steel.
4. filter a set of cups as claimed in claim 3 is characterized in that, described multistrand rolling screw thread comprises about 15 to 24 spiral shell teeth for per 10 centimetres.
5. filter a set of cups as claimed in claim 4 is characterized in that, the distance between each described spiral shell tooth is about 0.381 to 0.432 centimetre, and the height of each described spiral shell tooth is about 0.114 to 0.157 centimetre.
6. filter a set of cups as claimed in claim 5 is characterized in that, the wall thickness of described sleeve is about 0.114 to 0.173 centimetre.
7. filter a set of cups as claimed in claim 6 is characterized in that described sleeve can bear about 28kg/cm
2Internal pressure, and have 168kg/cm at least
2Least limit pressure.
8. filter a set of cups as claimed in claim 1 is characterized in that, comprises that also one is arranged on the torque nut on the described blind end.
9. filter a set of cups as claimed in claim 1 is characterized in that, also comprise one be arranged on the described outer surface, from the terminal described blind end of spiral shell tooth extend through of described many screw threads and the powder coating of described torque nut.
10. method of making threaded filter a set of cups may further comprise the steps:
A) deep-draw one elongate sleeve, this sleeve have the wall that an openend, a blind end and have an outer surface; And
B) rolling many screw threads on described outer surface.
11. method as claimed in claim 11 is characterized in that, described sleeve is formed from steel.
12. method as claimed in claim 12 is characterized in that, described outer surface comprises that one is arranged on the unthreaded portion between described openend and described many screw threads.
13. method as claimed in claim 13 is characterized in that, also comprises a torque nut is connected in described blind end.
14. method as claimed in claim 14 is characterized in that, is included in also that the terminal spiral shell tooth from described many screw threads carries out powder coating to described blind end and described torque nut on the described outer surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US1672496P | 1996-05-02 | 1996-05-02 | |
| US60/016,724 | 1996-05-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1216935A CN1216935A (en) | 1999-05-19 |
| CN1080132C true CN1080132C (en) | 2002-03-06 |
Family
ID=21778624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97194320A Expired - Fee Related CN1080132C (en) | 1996-05-02 | 1997-01-03 | Rolled threaded filter bowl |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP0912224A4 (en) |
| JP (1) | JP3274473B2 (en) |
| KR (1) | KR20000065161A (en) |
| CN (1) | CN1080132C (en) |
| AU (1) | AU1357397A (en) |
| BR (1) | BR9709173A (en) |
| CA (1) | CA2253360A1 (en) |
| HK (1) | HK1020021A1 (en) |
| TW (1) | TW344668B (en) |
| WO (1) | WO1997040911A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000042309A (en) * | 1998-07-31 | 2000-02-15 | Tennex Corp | Liquid treating filter |
| KR100728169B1 (en) * | 2006-02-03 | 2007-06-13 | 아세아텍스주식회사 | Air filter |
| JP6814000B2 (en) * | 2016-09-09 | 2021-01-13 | ヤマシンフィルタ株式会社 | Filter device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199454A (en) * | 1978-04-10 | 1980-04-22 | Sartore Michael A | Filter |
| US4783271A (en) * | 1986-06-27 | 1988-11-08 | Pall Corporation | Temperature responsive bypass filter assembly |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3000506A (en) * | 1959-05-27 | 1961-09-19 | Purolator Products Inc | Throwaway type filter |
| US3256989A (en) * | 1963-03-13 | 1966-06-21 | Champion Lab Inc | Screw neck filter cartridge |
| US3913770A (en) * | 1973-09-07 | 1975-10-21 | Richard E Tarro | Drinking container |
| GB2121696A (en) * | 1982-06-12 | 1984-01-04 | William Sydney Charlton | Oil filters |
| US4933093A (en) * | 1989-04-20 | 1990-06-12 | Keller Russel D | Fuel filter |
| DE59104891D1 (en) * | 1991-04-17 | 1995-04-13 | Nussbaum Ag E | Method and device for producing threaded aluminum cans. |
-
1997
- 1997-01-03 EP EP97900859A patent/EP0912224A4/en not_active Withdrawn
- 1997-01-03 CA CA002253360A patent/CA2253360A1/en not_active Abandoned
- 1997-01-03 AU AU13573/97A patent/AU1357397A/en not_active Abandoned
- 1997-01-03 JP JP53885097A patent/JP3274473B2/en not_active Expired - Fee Related
- 1997-01-03 CN CN97194320A patent/CN1080132C/en not_active Expired - Fee Related
- 1997-01-03 WO PCT/US1997/000027 patent/WO1997040911A1/en not_active Application Discontinuation
- 1997-01-03 KR KR1019980708780A patent/KR20000065161A/en active IP Right Grant
- 1997-01-03 BR BR9709173-1A patent/BR9709173A/en not_active Application Discontinuation
- 1997-05-02 TW TW086105866A patent/TW344668B/en active
-
1999
- 1999-11-15 HK HK99105265A patent/HK1020021A1/en not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4199454A (en) * | 1978-04-10 | 1980-04-22 | Sartore Michael A | Filter |
| US4783271A (en) * | 1986-06-27 | 1988-11-08 | Pall Corporation | Temperature responsive bypass filter assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9709173A (en) | 2000-01-11 |
| WO1997040911A1 (en) | 1997-11-06 |
| CA2253360A1 (en) | 1997-11-06 |
| TW344668B (en) | 1998-11-11 |
| CN1216935A (en) | 1999-05-19 |
| EP0912224A4 (en) | 1999-09-01 |
| EP0912224A1 (en) | 1999-05-06 |
| AU1357397A (en) | 1997-11-19 |
| JP2000503590A (en) | 2000-03-28 |
| JP3274473B2 (en) | 2002-04-15 |
| HK1020021A1 (en) | 2000-03-10 |
| KR20000065161A (en) | 2000-11-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |