US 8,262,762 B2 · Evacuation valve arrangements; pulse jet air cleaner systems using same; and, methods

Abstract

Methods, techniques, and constructions are provided for use to apply an evacuation valve arrangement on an air cleaner assembly that is configured for pulse jet operation. An example evacuation valve arrangement is provided which comprises a valve member in the form of a sleeve that extends completely around a sidewall portion of an air cleaner housing of a pulse jet air cleaner. Examples are depicted in which the sidewall portion can comprise: a portion of a housing sidewall section that surrounds an installed filter cartridge, in use; a portion of an access cover; or, a drop tube secured to a portion of the housing, for example either on an access cover or on another portion of a housing. Specific features and alternatives are described. Also, methods of assembly and operation are described.

Claims23

Dependent claims

A method of modifying an evacuator valve assembly of a pulse jet air cleaner assembly for water fording;

the method comprising a step of:
(a) clamping closed an evacuation valve arrangement, of an evacuator valve assembly, on a pulse jet air cleaner assembly;
the pulse jet air cleaner assembly comprising before the step of clamping:
(i) an air cleaner housing comprising:
a housing body, defining a housing interior and an access cover;
a removable cartridge positioned within the housing interior;
a pulse jet conduit configured to direct a pulse jet of air into the cartridge, for cleaning;
and, a dust evacuation assembly including an evacuation valve arrangement configured so that when a cleaning pulse of air occurs, the evacuation valve arrangement will open in response to internal pressure increase in the housing interior, allowing for pressure release and dust evacuation from the housing interior.

5 more elements

Dependencies are inferred from the claim text.

Evacuation valve arrangements; pulse jet air cleaner systems using same; and, methods

Life of this patent

Evacuation valve arrangements; pulse jet air cleaner systems using same; and, methods

Life of this patent

Abstract

Claims23