Class / Patent application number | Description | Number of patent applications / Date published |
055283000 | With automatic control of cleaning means | 9 |
20080229719 | Dust Collection Device - A dust collection device has a tank, a suction unit, a filtering unit, a dust removal unit, a first detection unit, and a control unit. The tank has an air inlet for accommodating dust. The suction unit aspirates the dust through the air inlet. The filtering unit captures the dust through the air inlet. The dust removal unit removes the dust from the filtering unit. The first detection unit detects an operational state of the suction unit. The control unit controls the suction unit and the dust removal unit. The control unit activates the dust removal unit, when the first detection unit detects that the suction unit operates for a first predetermined time period and then stop operating. | 09-25-2008 |
20080250762 | Dust Collector Tube Line Cleaner - An apparatus for cleaning a differential pressure line in a pressure monitoring system is described. The cleaning apparatus has a first fluid pressure inlet, a second fluid pressure inlet, a flow control, and a means for controlling the flow control. The flow control has a first port in fluid communication with the fluid pressure inlet and a second port in selectable fluid communication with the second fluid pressure inlet and a third port in selectable fluid communication with the first pressure inlet. The means for controlling the flow control allows the flow control to selectively receive a reverse-flow fluid pressure via the second fluid pressure inlet and selectively distribute the reverse-flow fluid pressure to the fluid pressure inlet via the first port. | 10-16-2008 |
20090113856 | High Efficiency Dust Separation System For Mobile Sweeper Vehicles - An improved regenerative flow sweeping system for road and pavement sweeper vehicles includes first and second filter compartments as part of the recirculation loop in which the debris-entrained air is conducted from the intake hood into an initial separation compartment where some of the debris is removed from the air flow with the remaining air flow directed alternatively through one or the other of the first and second filter compartments for a selected period of time during which time finer particulates accumulate on the surface of the filter media. Thereafter, the air flow is redirected to the other filter compartment while pneumatic valves in the first filter compartment are selectively actuated to direct one or more pulses of compressed air into the filter media of the first filter compartment to remove accumulated particles on the filter media and effective “reverse flush” or purge the filter media. The first and second filter compartments are alternately place in and out of the air flow to filter particulates therefrom with the filter compartment that is taken out of the air flow subjected to the “reverse flush” to remove accumulate particulates therefrom. | 05-07-2009 |
20130133298 | SELF-CLEANING AIR FILTER - The self-cleaning air filter uses reverse pulse self-cleaning for small scale, small volume air filtration applications, such as vehicles and motorized equipment. The self-cleaning air filter includes a filter casing, a filter element housed within a filter casing, an electronically controlled pulse valve that releases the compressed air pulse, and a pulse pressure relief vent. During the cleaning cycle, the pulse pressure vent opens to vent the compressed air pulse to the atmosphere thereby maintaining the positive pressure differential between the inside and outside of the filter element, which sustains the cleaning action for the duration of the compressed air pulse. | 05-30-2013 |
20130145732 | FILTER WITH CYCLONE SEPARATION MEANS - Disclosed in a filter for filtering a working fluid comprising a canister having an inlet and an outlet; a first partially perforated generally conical member positioned in said canister; a second generally conical member positioned inside said first partially perforated generally conical member, whereby the working fluid upon entering the inlet is caused to spin inside the canister, to pass through the perforated portion of the first generally conical member, to enter an inlet to the second generally conical member, to spin within the second conical member and to pass through the outlet. | 06-13-2013 |
20130152518 | PULSED PLASMA REGENERATION OF A PARTICULAR FILTER - A method for removing matter from a filter is disclosed. The method may include measuring loading conditions of a filter media. The method may also include applying at least one voltage pulse between an electrode external to the filter media and a housing of the filter media to induce a plurality of shock waves directed toward the filter media, based on the loading conditions. | 06-20-2013 |
20130219839 | PULSE JET AIR CLEANER SYSTEMS; 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 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. | 08-29-2013 |
20140123608 | ENGINE-OUT SOOT FLOW RATE PREDICTION - A method for engine-out soot flow rate prediction of an exhaust gas treatment system is provided. A measured level of oxides of nitrogen in the exhaust gas treatment system is received. An engine fuel injection timing and air-fuel ratio of an engine producing the oxides of nitrogen are also received. An engine timing factor is determined based on the engine fuel injection timing. An engine air-fuel ratio factor is determined based on the engine air-fuel ratio. An engine-out soot flow rate prediction is generated based on the measured level of oxides of nitrogen, the engine timing factor, and the engine air-fuel ratio factor. | 05-08-2014 |
20140338293 | Self-Cleaning Duplex Filter - A duplex fluid filter assembly allows extended life between filter replacements, by automatically back-flushing one filter unit with clean fluid from another filter unit of the duplex assembly. | 11-20-2014 |