DE3844539C1 - Web-form filter material, in particular filter paper for liquid filters or gas filters, having shaped-in beadings - Google Patents
Web-form filter material, in particular filter paper for liquid filters or gas filters, having shaped-in beadingsInfo
- Publication number
- DE3844539C1 DE3844539C1 DE3844539A DE3844539A DE3844539C1 DE 3844539 C1 DE3844539 C1 DE 3844539C1 DE 3844539 A DE3844539 A DE 3844539A DE 3844539 A DE3844539 A DE 3844539A DE 3844539 C1 DE3844539 C1 DE 3844539C1
- Authority
- DE
- Germany
- Prior art keywords
- beadings
- web
- filters
- filter material
- beads
- 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
Links
- 239000000463 material Substances 0.000 title claims abstract description 6
- 239000007788 liquid Substances 0.000 title claims abstract description 4
- 239000011324 bead Substances 0.000 claims description 15
- 125000006850 spacer group Chemical group 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
- B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/016—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements with corrugated, folded or wound filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/05—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported
- B01D29/07—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements supported with corrugated, folded or wound filtering sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/15—Supported filter elements arranged for inward flow filtration
- B01D29/21—Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/13—Supported filter elements
- B01D29/23—Supported filter elements arranged for outward flow filtration
- B01D29/232—Supported filter elements arranged for outward flow filtration with corrugated, folded or wound sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
Description
Die Erfindung betrifft bahnenförmiges Filtermaterial,
insbesondere Filterpapier für Flüssigkeits- oder Gas
filter, mit eingeformten Sicken nach dem Oberbegriff
des Patentanspruchs 1.
Filterpapiere mit derartigen Sicken sind beispiels
weise bekannt aus DE-OS 19 30 715. Die Sicken weisen
dort einen etwa halbkreisförmigen Querschnitt auf.
Der Erfindung liegt die Aufgabe zugrunde, eine Sic
kenform mit erhöhter Festigkeit zu schaffen.
Gelöst wird diese Aufgabe durch eine Sickenform nach
dem kennzeichnenden Merkmal des Patentanspruchs 1.
Eine besonders vorteilhafte Ausführungsform ist Ge
genstand des Unteranspruchs.
In der Zeichnung ist eine Sicke im Querschnitt darge
stellt. Bei dieser Sicke ist der Verlauf der Ketten
linie, die hier die Form der Wölbung der Sicke be
stimmt, eingetragen.
Eine Kettenlinie ist ein mathematischer Begriff und
durch den Verlauf einer durch das Eigengewicht bela
steten Kette mit unendlich vielen Gliedern definiert.
Eine solche Kettenlinie wird teilweise auch als Seil
linie bezeichnet.
Durch die Anpassung der Wölbung der Sicke an den Ver
lauf einer Kettenlinie wird eine wesentliche Erhöhung
der Eigenstabilität gegenüber bekannten Sickenformen
erzielt.
Mit H ist in der Zeichnung die Sickenhöhe, mit B die
Sickenbreite und mit D die Filterpapierdicke jeweils
bezeichnet.
Claims (2)
1. Bahnenförmiges Filtermaterial, insbesondere Fil
terpapier, mit eingeformten Sicken für
Flüssigkeits- oder Gasfilter, bei denen das Fil
termaterial zick-zack-förmig gefaltet und die
einzelnen Faltenabschnitte über die Sicken in Ab
stand zueinander gehalten sind,
dadurch gekennzeichnet,
daß die Sicken zumindest in einer senkrecht zur
unverformten Filterbahn verlaufenden Quer
schnittsebene von der Filterbahnebene ausgehend
einer Kettenlinie folgend gewölbt sind.
2. Filtermaterial nach Anspruch 1,
dadurch gekennzeichnet,
daß die Sicken eine Breite (B) innerhalb der un
geprägten Filterbahnebene aufweisen, die zu der
Zenithöhe (H) in einem Verhältnis von kleiner als
2 steht.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3844539A DE3844539C1 (en) | 1988-05-04 | 1988-05-04 | Web-form filter material, in particular filter paper for liquid filters or gas filters, having shaped-in beadings |
DE3815146A DE3815146C1 (en) | 1988-05-04 | 1988-05-04 | Web-shaped filter material, in particular filter paper for liquid filters or gas filters, having moulded beads |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3844539A DE3844539C1 (en) | 1988-05-04 | 1988-05-04 | Web-form filter material, in particular filter paper for liquid filters or gas filters, having shaped-in beadings |
DE3815146A DE3815146C1 (en) | 1988-05-04 | 1988-05-04 | Web-shaped filter material, in particular filter paper for liquid filters or gas filters, having moulded beads |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3844539C1 true DE3844539C1 (en) | 1989-09-21 |
Family
ID=25867736
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3844539A Expired DE3844539C1 (en) | 1988-05-04 | 1988-05-04 | Web-form filter material, in particular filter paper for liquid filters or gas filters, having shaped-in beadings |
DE3815146A Expired DE3815146C1 (en) | 1988-05-04 | 1988-05-04 | Web-shaped filter material, in particular filter paper for liquid filters or gas filters, having moulded beads |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE3815146A Expired DE3815146C1 (en) | 1988-05-04 | 1988-05-04 | Web-shaped filter material, in particular filter paper for liquid filters or gas filters, having moulded beads |
Country Status (1)
Country | Link |
---|---|
DE (2) | DE3844539C1 (de) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1930715A1 (de) * | 1968-09-16 | 1970-11-26 | Cambridge Filter Corp | Gasfiltereinsatz |
-
1988
- 1988-05-04 DE DE3844539A patent/DE3844539C1/de not_active Expired
- 1988-05-04 DE DE3815146A patent/DE3815146C1/de not_active Expired
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1930715A1 (de) * | 1968-09-16 | 1970-11-26 | Cambridge Filter Corp | Gasfiltereinsatz |
Also Published As
Publication number | Publication date |
---|---|
DE3815146C1 (en) | 1989-09-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8100 | Publication of the examined application without publication of unexamined application | ||
AC | Divided out of |
Ref country code: DE Ref document number: 3815146 Format of ref document f/p: P |
|
D1 | Grant (no unexamined application published) patent law 81 | ||
8364 | No opposition during term of opposition | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: MAHLE FILTERSYSTEME GMBH, 70376 STUTTGART, DE |