DE1981035U - INTAKE AIR FILTER FOR COMBUSTION MACHINES, COMPRESSORS AND OTHER AIR SUCTION MACHINES. - Google Patents

Description

PAM 2 33-5 * 7/22/67 L

PATENT Attorney DIPL.-ING. EIDEMEIER, 7 STUTTGAHT, NECKARSTR.

15th of July

Responsible: Filterwerk Mann & Hummel GmbH, Ludwigsburg,

Hindenburgstrasse

Utility model registration

A 11 403 - VSS 550

Intake air filter for internal combustion engines, Compressors and other air-sucking machines.

The invention relates to an air intake filter for internal combustion engines, compressors and other air-sucking devices Machines with a cup-shaped filter housing and a cover that can be tightened by hook fasteners against the edge of the housing running in a circular path, wherein at least one hook fastener is hinged to two bearing tongues projecting outward from the housing wall.

For reasons of price, the filter housings usually have a cylindrical housing wall · The housing cover is correspondingly designed as a circular disk * Here it is usually felt to be an advantage that the lid in any desired Position can be placed on the edge of the housing and tightened against it.

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A 11 403 -VSS 550

In some cases, however, the housing and cover must be fixed in a certain mutual angular position. That is the case, for example, when the housing and cover have interlocking parts outside of the filter axis. Likewise an exact fixation of the cover is necessary »if the whole filter against the suction system of the by one or more screws passing through the cover eccentrically Internal combustion engine, for example against one or more Carburetor is pulled. If this tension is not sufficient to press the cover firmly enough against the edge of the housing, Several hook fasteners are arranged on the circumference of the housing, with which the cover is also pulled against the edge of the housing will.

The object of the invention is to provide a precise definition of the cover with regard to its in the simplest possible manner To create angular position relative to the housing. To the solution this task is proposed according to the invention that one axially parallel guide tongue attached to the edge of the lid between the bearing tongues of a Hakenversehluases engages.

The invention is illustrated below in the drawing illustrated embodiment explained in more detail. Show it

Flg. 1 shows an axial section through an inventive Intake air filter,

- 3 A 11 403 - VSS 550

Fig. 2 is an end view of this filter from above,

Fig. 3 shows a section along line III - III

of Fig. 2, in an enlarged view,

FIG. 4 is the front view of that shown in FIG Details with the hook fastener removed.

The cup-shaped filter housing 1 with a cylindrical casing The housing wall 2 and the housing base 3 are covered by a cover 4 locked. The raw air intake port opens into the housing wall 2 5 a. The Heinluftstutzen 6 for connection to the The intake system of the internal combustion engine discharges from the housing base 3 in the filter axis

Between the housing base 3 and cover 4 is an annular, Filter insert with a radial flow from the outside to the inside axially clamped. In the exemplary embodiment, the filter insert 7 consists of a folded paper star S and the end face Plastic discs 9 and 10.

The housing cover is off-center in the execution example penetrated by an angled tube 11, which is inserted into a recess 12 with connection piece 13 located on the housing base 3

A 11 4O3 - Vss 550,

opens · This means * that the cover 4 is in a must be determined certain angular position to the housing.

Through the angled tube 11 blow-through gases are from the Crankcase of the internal combustion engine in the filter insert downstream clean air room and fed from there to the intake system of the internal combustion engine. Approximately entrained condensation water flows through the nozzle 13 and a line, not shown, into the intake manifold between Carburetor and internal combustion engine.

The housing cover 4 is through in the exemplary embodiment three hook fasteners 14 against the course after a circular path ends of housing edge 2a can be tightened · The seal between Housing edge 2a and cover 4 takes place through an inserted O-ring 15.

A bearing block i6 is attached to the housing wall 2, of which two bearing tongues 1 ?. and 1.8 protrude outwards. A clamping bracket 20 is hooked into bores 19 of the bearing tongues , which carries the clamping hook 22 with a bolt 21.

Around the cover 4 in the exact angular position relative to the housing caused by the tube 11 and the recess 13 1 is an axially parallel to the edge of the lid

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A 11 40> - VSS 550

Guide tongue 23 attached between the bearing tongues 17 and 18 takes effect (see Pig. 4). This is the angular position of the cover 4 with respect to the housing 1 immovably precisely determined.

To facilitate production is in the housing wall a recess 24 laterally guiding the bearing stud 16 moved in; To fix the guide tongue 23 1st on the edge of the lid an expression 25 is provided.

Claims (1)

claim Air intake filter for internal combustion engines, compressors and other air-sucking machines with a cup-shaped filter housing and a cover that can be pulled against the edge of the housing running in a circular path by means of a hook fastener ©, with at least one hook fastener being hinged to two bearing tongues protruding outward from the housing wall, characterized in that one on the Hand of the cover (K) attached, axially parallel guide tongue (22) between the bearing tongues (17, 18} engages.