Donaldson Comapny, Inc.

Fred H Wahlquist

Gary Ray Gillingham

Daniel T Risch

Thomas Richard Olson

Wayne M Wagner

Eugene D Wilson

Ervin P Fuchs

Joseph C Tokar

Bernard A Matthys

Jim C Rothman

Thomas G Miller

William Krisko

Robert Widerski

Stan M Koehler

Winston E Olson

Charles Jensen

Jason R DeGuelle

Gregory L Reichter

James C Rothman

Peter A Betts

Stephen Sabelko

Pete A Betts

Bryan D Patten

Daniel Eric Adamek

David W Mulder

Robert R Levac

Edward A Steinbrueck

Thomas R Olson

Steven Alan Carter

Francis A Friedmann

William J Krisko

Robert Paul Widerski

A pulse ring assembly for air cleaner systems that is adapted to produce a pulse ring of gas to clean a filter element. The air cleaner system may include an outer tube and an inner tube configured to receive the inner tube such that at least a portion of an interior surface of the outer tube faces at least a portion of an exterior surface of the inner tube. The outer tube may include a pulse port extending between the interior and exterior surfaces of the outer tube into an outer tube passageway. Filtered air may be configured to flow from a first filter cartridge, through the outer and inner tubes, and to an engine intake. The system may also include a pulse jet apparatus in fluid communication with the pulse port of the outer tube and configured to direct gas through the pulse port towards the first filter cartridge.

Pulse ring assembly for air cleaner systems and methods thereof

Assemblies, features, and techniques for pulse jet air cleaner assemblies and their operation are described. Techniques described include methodology and equipment for preferred pulse jet sequencing and operation.

Pulse jet air cleaner systems; evacuation valve arrangements; air cleaner components; and, methods

Pulse jet air cleaner systems, components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a possible pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; possible evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

Pulse jet air cleaner systems; components; and, methods

Pulse jet air cleaner systems, components, and, methods

Assemblies, features, and techniques for pulse jet air cleaner assemblies and their operation are described. In general, the techniques relate to: providing for advantageous dust egress arrangement from the housing; and, preferred pulse control logic. This can be advantageous in field operation.

Pulse jet air cleaner systems components and methods are described. The features relate to air cleaner housings that include a cartridge receiving section. Features described relate to a possible two-stage construction, a pulse jet accumulator section, pulse jet equipment for cleaning a filter cartridge positioned within the air cleaner; evacuation valve arrangements for projection of dust from the air cleaners; and other example features. Methods of assembly and use are also provided.

According to the present disclosure a pulse jet air cleaner components, features and assemblies are described, as well as methods of use. Preferred v-pack configurations, scavenge arrangements, pulse jet arrangements and filter cartridge retention arrangements, are shown and described, for example.

Pulse jet air cleaner components; features; assemblies; and, methods

Fluted filter media includes filter material having a plurality of flutes formed therein having alternating ends of adjacent flutes closed to force fluid through filter material. A first embodiment of the filter media includes tapered flutes which have the open ends of the flutes larger in cross-section than the closed flutes, wherein the upstream open flutes converge toward the downstream end and the upstream closed end flutes diverge toward the downstream end. A second embodiment includes filter media which is asymmetric formed with dissimilar upstream and downstream flute cross-sections with larger flute openings to the upstream side of the filter. A third embodiment includes filter media with an upstream edge crushed to improve flow at the upstream edge. A fourth embodiment includes filter media with the upstream sealing material recessed from the upstream edge for reducing effects from blockages at the upstream edge of the filter.

Fluted filter media

A V-pack filter includes a frame construction having a first frame structure and a second frame structure. The V-pack filter also includes first and second panel sections mounted in extension between the first and second frame structures. The first panel section has first and second ends. The second panel section has third and fourth ends. The first and third ends have a first distance therebetween while the second and fourth ends have a second distance therebetween. The second distance is generally greater than the first distance. The first and second panel sections and the second frame structure define an air flow aperture. A seal arrangement circumscribes the air flow aperture and projects outwardly from the second frame structure. The first frame structure defines a first receiver indent. Assemblies and methods are also included.

Multistage air cleaner including pulse cleaning system

Pulse jet air cleaner system; components; and, methods

Growing community of inventors

Bloomington, MN, United States of America

Fred H Wahlquist