EP0517153A1 - Boîtier avec un raccord de tuyau étanche, notamment un boîtier de filtre à air - Google Patents

Boîtier avec un raccord de tuyau étanche, notamment un boîtier de filtre à air Download PDF

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Publication number
EP0517153A1
EP0517153A1 EP92109263A EP92109263A EP0517153A1 EP 0517153 A1 EP0517153 A1 EP 0517153A1 EP 92109263 A EP92109263 A EP 92109263A EP 92109263 A EP92109263 A EP 92109263A EP 0517153 A1 EP0517153 A1 EP 0517153A1
Authority
EP
European Patent Office
Prior art keywords
housing
molded part
pipe connection
housing according
conical
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.)
Withdrawn
Application number
EP92109263A
Other languages
German (de)
English (en)
Inventor
Erhard Bartsch
Hans Joachim Luib
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iveco Magirus AG
Original Assignee
Iveco Magirus AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iveco Magirus AG filed Critical Iveco Magirus AG
Publication of EP0517153A1 publication Critical patent/EP0517153A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
    • F02M35/02—Air cleaners
    • F02M35/0201—Housings; Casings; Frame constructions; Lids; Manufacturing or assembling thereof
    • F02M35/0202—Manufacturing or assembling; Materials for air cleaner housings
    • F02M35/0203—Manufacturing or assembling; Materials for air cleaner housings by using clamps, catches, locks or the like, e.g. for disposable plug-in filter cartridges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
    • F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
    • F05C2225/08—Thermoplastics

Definitions

  • the invention relates to a housing with a pipe connection in a sealed engagement with a first annular housing molded part or a housing opening connection integrated in the housing, in particular an air filter housing with a sealed pivotable clean air pipe connection.
  • Air filter housings are known from DE-GM 83 31 188 and DE-GM 86 31 228, which have a rigid connection for the clean air pipe. Due to the rigid connection (welded, glued, soldered, flanged), the clean air can only be discharged in a single predetermined direction, which is associated with disadvantages when installed in a motor vehicle and / or is associated with additional assembly effort. The rigid connection easily leads to tension.
  • the object of the invention is to provide a housing with a sealed pipe connection of the type mentioned, which seals perfectly in the pipe connection area with a simple structure and which nevertheless provides a detachable pivotable connection between the connection parts.
  • a second concentric annular molded part of the pipe connection which is fastened to the first molded part or to the housing opening at a radially outer location, has a conical, radially outer peripheral section which is clamped to a conical ring section of the pipe connection by means of a V-shaped clamp , wherein the pipe connection has an axial seal which is in sealing engagement against a radial section of the first molded part or of the housing opening, and the pipe connection then abuts against an axial stop of the first or second molded part, so that a defined sealing force is set up in the axial seal and thus the seal cannot be damaged.
  • the axial stop is preferably a (rolled-in) bead of the second molded part, which bears against an (integrated) rib of the pipe connection.
  • the axial stop can also be provided in the region of the radial section of the first molded part, against which the axial seal also bears.
  • the pipe connection has an annular, integrated nose in the axial direction, which abuts the radial section.
  • the axial seal is expediently located in the region of a seal which is located on a filter cartridge of an air filter itself on the other side of the aforementioned radial section of the first molded part or housing opening connection piece. It is particularly expedient if the axial seal approximately corresponds in shape, dimension and Shore hardness to the seal of the filter cartridge.
  • the conical ring section preferably has two opposite conical stop surfaces for the V-shaped clamp and the second conical shaped part.
  • Both conical abutment surfaces can be formed in a bead-like manner with the pipe connection.
  • one of the two conical stop surfaces can be formed by a third, ring-shaped, separate molded part, which is fastened in an integrated manner to the actual pipe connection.
  • the other conical stop surface for the V-shaped clamp is formed by the second conical shaped part.
  • the second conical shaped part has a coaxial guide section for the axial seal and / or the pipe stop.
  • the second and / or third molded part consist of sheet metal or plastic.
  • a particularly advantageous embodiment variant is characterized in that a clamp assembly aid is provided in the region of the second annular molded part, which can in particular be circumferential housing ribs.
  • the mounting aid can also be a concentric mounting ring, which is attached to the radial wall of the housing opening.
  • the invention creates a simple, releasable and reliably sealing connection between the housing and the pipe connection, in particular in the case of an air filter housing in the region of the clean air pipe connection.
  • the clean air pipe socket can be rotated into any installation position and clamped there, which was previously only possible by rigid constructions by rotating the entire filter system or only once during initial installation.
  • a purely axial seal is set up, which greatly simplifies assembly (no friction when pushed onto the pipe socket) and does not damage the seal during assembly.
  • the clamp diameter is large, which leads to small deformations in the sealing area.
  • the contact pressure of the seal is limited by the design of the axial fixed stops in order to avoid permanent deformation. Due to the reliable axial seal, which can practically not be damaged, there is a long service life.
  • a housing opening connection piece (21) integrated with an air filter housing comprises an axial connection piece section in order to form the housing passage opening (5).
  • a clean air pipe connection (2) is attached to the axial nozzle area, which e.g. is designed as an extrusion with an integrated conical ring section (10).
  • a second annular molded part (4) is fastened to the radial section of the housing opening connector (21), which in turn has a conical radial section (8) at the non-fastened end.
  • the conical radial section (8) serves as a contact surface for the integrated conical ring section (10) with the same orientation of the associated contact surface.
  • Ring section (10) and radial section (8) are firmly clamped by means of a V-shaped clamp (9).
  • An assembly aid in the form of a concentric assembly ring (22) is provided to facilitate assembly of the V-shaped clamp (9) and is attached to the radially outer location of the housing opening connector (21).
  • the opening of the mounting ring (22) is dimensioned so that the V-shaped clamp (9) can be accommodated concentrically before it is braced on the conical ring surfaces.
  • the second annular molded part (4) has a coaxial guide section for the ring-shaped end of the pipe connection (2) at the radially innermost point, wherein between the axial and radial nozzle sections of the housing opening section (21), the foremost end of the pipe connection (2) and the aforementioned coaxial guide section (17) a receiving space is formed, in which an axial seal (11) is located, which is in sealing engagement with the radial wall of the housing opening connector (21).
  • FIG. 2 basically corresponds to that according to FIG. 1.
  • An air filter housing (1) is not provided with an integrated housing opening connection piece (21), but with a separate first annular molded part (3). which is firmly and sealingly attached to the housing wall (6) of the actual housing and has at the non-attached end a coaxial concentric guide socket (7) which is provided for pre-centering the clean air pipe connection (2).
  • the first molded part (3) also has a radial section (12) on which the axial seal (11) of the pipe connection lies in a sealing manner.
  • the axial seal (11) is received in an annular groove at the end of the clean air pipe connection (2), which is a molded part made of aluminum or plastic, for example.
  • the pipe connection (2) has an integrated axial nose (20) which bears in a form-fitting manner against the radial section of the first annular molded part (3) in order to limit the sealing force of the axial seal (11) when the device is clamped.
  • the axial seal (11) is provided in shape, dimension and Shore hardness in approximately a seal (15) which is applied on the other side of the radial section (12) on the filter cartridge (16) itself in order to achieve a similarly good seal , as is already the case between the filter cartridge (16) and the radial section (12).
  • the second annular molded part (4) is attached to the radial section (12) at the radially outer location with respect to the axial seal (11), in particular welded, soldered or the like. At the other end it has a conical radial section (8) which interacts with a conical ring section of a third annular shaped part (18), in particular is firmly and releasably clamped in a releasable manner by means of a V-shaped annular clamp (9).
  • the ring-shaped molded part (18) has an integrated coaxial base, which is positively and firmly received in an annular recess in the clean air pipe socket (2).
  • the diameter of the V-shaped clamp (9) is comparatively large. By selecting the large clamp diameter, large bending moments caused by vibrations of the clean air pipe connection (2) are converted into pairs of forces with relatively low individual forces, which leads to low deformations of the sealed parts.
  • the assembly of the V-shaped clamp (9) is facilitated in that the clamp (9) can be supported on the outer radial wall of the second annular molded part (4) before installation.
  • the embodiment illustrated in FIG. 3, like the embodiment according to FIG. 2, provides a pipe connection (2) in the form of a molded part such as aluminum, the conical ring section (10) being formed by a single conical radial surface integrated with the pipe connection (2) , which is braced against the conical radial surface of the second annular molded part (4) by means of the V-shaped clamp (9).
  • the V-shaped clamp (9) is made easier by small ribs (19) in that the clamp is held almost at the installation height during installation.
  • the ribs are molded onto the air filter housing (1).
  • the second annular molded part (4) according to FIG. 3 is firmly connected to the first annular molded part (3) at the radially inner point and has a rolled-in bead (13) in the area of the fastening point, which ribs against circumferential ribs when the pipe connection (2) is tensioned (14) of the pipe connection (2) abuts.
  • the peripheral ribs (14) are integrally formed with the pipe connection (2).
  • All conical surfaces in the bracing area of the V-clamp (9) are matched to each other in terms of their incline.
  • the thickness of the conical ring section (10) and the thickness of the conical edge sections (8) of the second and third molded parts are matched to one another, so that a defined clamping force of the arrangement as a whole and a defined sealing force in the area of the axial seal (11) are established .
  • the pipe connection (2) can be pivoted or rotated into any installation position without causing additional tension at the connection point between the housing (1) and the pipe connection (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Flanged Joints, Insulating Joints, And Other Joints (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
EP92109263A 1991-06-06 1992-06-02 Boîtier avec un raccord de tuyau étanche, notamment un boîtier de filtre à air Withdrawn EP0517153A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4118553 1991-06-06
DE4118553 1991-06-06
DE4209512 1992-03-24
DE19924209512 DE4209512A1 (de) 1991-06-06 1992-03-24 Gehaeuse mit abgedichtetem rohranschluss, insbesondere luftfiltergehaeuse

Publications (1)

Publication Number Publication Date
EP0517153A1 true EP0517153A1 (fr) 1992-12-09

Family

ID=25904286

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92109263A Withdrawn EP0517153A1 (fr) 1991-06-06 1992-06-02 Boîtier avec un raccord de tuyau étanche, notamment un boîtier de filtre à air

Country Status (2)

Country Link
EP (1) EP0517153A1 (fr)
DE (1) DE4209512A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310423A1 (de) * 1993-03-31 1994-10-06 Knecht Filterwerke Gmbh Teilbares Filtergehäuse
EP0757172A3 (fr) * 1995-07-31 1997-08-13 Bosch Gmbh Robert Moteur à combustion interne sur lequel est fixé un module d'aspiration ou un conduit d'aspiration et méthode pour fixer un module d'aspiration ou un conduit d'aspiration à un tel moteur
DE112008002433B4 (de) * 2007-10-02 2020-12-03 Mann+Hummel Gmbh Filterelement mit Zackendichtung und Filtersystem

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4332559A1 (de) * 1993-09-24 1995-03-30 Knecht Filterwerke Gmbh Zweiteiliges Luftfiltergehäuse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918531A (en) * 1932-02-29 1933-07-18 George H La Barre Air washer
US2273210A (en) * 1940-07-22 1942-02-17 Ruth C Donaldson Device for detachably clamping cylindrical sections together
US2507897A (en) * 1945-10-02 1950-05-16 Gavagnin Tullio Air and gas cleaner
FR1176086A (fr) * 1956-09-22 1959-04-03 Dépurateur d'air, à action électrostatique, plus particulièrement destiné aux moteurs à combustion interne
US3078650A (en) * 1961-03-20 1963-02-26 Donaldson Co Inc Air cleaner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918531A (en) * 1932-02-29 1933-07-18 George H La Barre Air washer
US2273210A (en) * 1940-07-22 1942-02-17 Ruth C Donaldson Device for detachably clamping cylindrical sections together
US2507897A (en) * 1945-10-02 1950-05-16 Gavagnin Tullio Air and gas cleaner
FR1176086A (fr) * 1956-09-22 1959-04-03 Dépurateur d'air, à action électrostatique, plus particulièrement destiné aux moteurs à combustion interne
US3078650A (en) * 1961-03-20 1963-02-26 Donaldson Co Inc Air cleaner

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4310423A1 (de) * 1993-03-31 1994-10-06 Knecht Filterwerke Gmbh Teilbares Filtergehäuse
EP0757172A3 (fr) * 1995-07-31 1997-08-13 Bosch Gmbh Robert Moteur à combustion interne sur lequel est fixé un module d'aspiration ou un conduit d'aspiration et méthode pour fixer un module d'aspiration ou un conduit d'aspiration à un tel moteur
DE112008002433B4 (de) * 2007-10-02 2020-12-03 Mann+Hummel Gmbh Filterelement mit Zackendichtung und Filtersystem

Also Published As

Publication number Publication date
DE4209512A1 (de) 1992-12-10

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