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US 2013/0219839 A1Published application
Pulse jet air cleaner systems; components; and, methods
AssigneeDonaldson Company, Inc.
InventorsGary Gillingham, Fred Wahlquist, Thomas Olson, Charles Jensen, Erwin Fuchs, Eugene Wilson, Robert Widerski
Life of this patent
Estimating the term…
Abstract
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.
Claims20
An air cleaner assembly comprising:
- (a) a housing including an outer wall defining an air flow inlet;
- an air flow outlet and an interior;
- (i) the housing outer wall including a sidewall having a dust evacuation aperture arrangement therethrough that has an aperture open area of at least 2 square inches;
- (ii) the housing having an end openable for service access to an internally received serviceable cartridge;
- (iii) the air flow outlet being an axial air flow outlet at an end of the housing opposite the end openable for service access;
- (b) a serviceable filter cartridge operably positioned in the interior of the housing;
- (i) the filter cartridge being removable from the air cleaner housing;
- and,
- (ii) the filter cartridge comprising media surrounding an open, central, interior;
- (c) a pulse jet distribution arrangement configured to direct a pulse of compressed gas into the open, central, interior of the filter cartridge;
- (i) the pulse jet distribution arrangement including a flow tube directed into the housing through the air flow outlet;
- and,
- (d) an evacuation valve arrangement.
10 more elements
An air cleaner assembly comprising:
- (a) a housing including an outer wall defining an air flow inlet;
- an air flow outlet and an interior;
- (i) the housing outer wall including a sidewall having a dust evacuation aperture arrangement therethrough;
- (ii) the housing having an end openable for service access to an internally received serviceable cartridge;
- (iii) the air flow outlet being an axial air flow outlet being an axial air flow outlet at an end of the housing opposite the end openable for service access;
- (b) a serviceable filter cartridge operably positioned in the interior of the housing;
- (i) the filter cartridge being removable from the air cleaner housing;
- and,
- (ii) the filter cartridge comprising media surrounding an open, central, interior;
- (c) a pulse jet distribution arrangement configured to direct a pulse of compressed gas into the open, central, interior of the filter cartridge;
- (i) the pulse jet distribution arrangement including a flow tube directed into the housing through the air flow outlet;
- (d) an evacuation valve arrangement;
- and,
- (e) an inlet valve arrangement positioned to bias between a first open inflow position;
- and, a second closed position;
- (i) when in the first open inflow position, the inlet valve arrangement allowing inlet flow through the air flow inlet into the housing;
- and,
- (ii) when in the second closed position, the inlet valve arrangement being positioned to inhibit pulse flow out the air flow inlet.
15 more elements
An air cleaner assembly comprising:
- (a) a housing including an outer wall defining an air flow inlet, an air flow outlet and an interior;
- (i) the housing outer wall including a sidewall;
- (ii) the housing having an end openable for service access to an internally received serviceable cartridge;
- (iii) the air flow outlet being an axial air flow outlet at an end of the housing opposite the end openable for service access;
- (iv) the air flow inlet being a tangential air flow inlet;
- (b) a serviceable filter cartridge operably positioned in the interior of the housing;
- (i) the filter cartridge being removable from the air cleaner housing;
- and,
- (ii) the filter cartridge comprising media surrounding an open, central, interior;
- (c) a pulse jet distribution arrangement configured to direct a pulse of compressed gas into the open, central, interior of the filter cartridge;
- (i) the pulse jet distribution arrangement including a flow tube directed into the housing through the air flow outlet;
- (d) an evacuation valve arrangement including:
- a dust exit aperture arrangement;
- and, a valve member arrangement;
- (i) the dust exit aperture arrangement having a total dust exit aperture open area of at least 8 sq. inch.;
- (ii) the valve member arrangement comprising a flat valve member, with no openable dust exit aperture therethrough, positioned over an associated portion of the dust exit aperture such that:
- (A) when a pulse of compressed gas is directed by the pulse jet distribution arrangement into the cartridge, the valve member biases to an open position allowing dust ejection through the dust exit aperture arrangement;
- and,
- (B) when the air cleaner assembly is operated without pulse jet distribution, the valve member biases to a closed position.
16 more elements
Dependencies are inferred from the claim text.