US 5,305,493 AGranted

Pneumatic device for cleaning air filters

AssigneeNuova Camp S.r.l.

InventorJosef Prenn

Life of this patent

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Abstract

Pneumatic device for cleaning air filters, and industrial filters in general, particularly filters mounted on endothermic engines such as motor vehicle engines, comprising a casing 1, provided with a water tight door 1b; the casing 1 communicates with a compressed air duct 7, and contains one or more supports 2, 5 which can be adjusted; each support for receiving a filter -F-, to be cleaned, said filter being of any known shape or size; kinematic means 4 are provided for setting into angular motion each support and relative filter while a second jet of compressed air, ejected by a mobile branch of the duct 8 frees the surface not hit by the first jet of air from the particles of dust. The dust removed is directed to a collector 1g connected to a duct in depression which provides for sending the air-dust mixture to known separating means, FIG. 2.

Claims8

Dependent claims

A filter cleaner for reconditioning a filter for reuse, said cleaner comprising:

a casing of a dimension to accommodate the filter to be cleaned;
an air inlet duct mounted to extend slidably through an opening in a wall of said casing;
an annular flange on an end of said inlet duct in said casing;
a spring positioned to bias said flange away from the wall of said casing through which said inlet duct extends;
a support plate dimensioned to engage one edge of the filter to be cleaned, said plate rotatably mounted in said casing at a point spaced from said flange;
an air blowing nozzle movably mounted in said casing for movement between said flange and said support plate;
and
a suction collector coupled to an opening in a wall of said casing for drawing off air from the interior of said casing, whereby a filter to be cleaned may be spring clamped in said casing between said flange and said support plate so that a cleaning stream of air may be blown over a surface of the filter from said air inlet duct and another air stream may be blown over an opposed surface of the filter by said air blowing nozzle to thereby clean the filter.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 07/858,772Filed 27 Mar 1992
Priority: IT BZ9100001029 Mar 1991
Granted: 26 Apr 1994
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

B08B 5/02
Cleaning by methods involving the use of air flow or gas flow: cleaning by the force of jets, e.g. blowing-out cavities
B01D 41/04
Regeneration of the filtering material or filter elements outside the filter for liquid or gaseous fluids: of rigid self-supporting filtering material
F02M 35/086
With means for removing dust, particles or liquids from cleaners; with means for indicating clogging; with by-pass means; Regeneration of…
Y02A 50/2351
Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters: atmospheric…