Pneumatic Reverse Flushing Patents (Class 55/302)
  • Patent number: 11268419
    Abstract: A reductant storage system for an internal combustion engine system includes a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container and a filter assembly. The filter assembly extends through the opening and include a filtering material and a gasket integrally formed with the filtering material. The gasket includes a proximal flange that is larger than the opening and including a sealing surface in sealing contact with the storage container.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: March 8, 2022
    Assignee: Caterpillar Inc.
    Inventor: Bogdan Balea
  • Patent number: 11260334
    Abstract: An object of the present invention is to provide a dust collector including a pulse jet type dust removal mechanism capable of uniformly removing dust over the entire length of a cylindrical filter without increasing the pressure loss of the cylindrical filter; and a dust removal method for such a dust collector.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: March 1, 2022
    Assignee: SINTOKOGIO LTD.
    Inventors: Takashi Suzuki, Hiroyuki Amano, Kazuhiko Kitahora, Masanori Uchida, Koh Saito
  • Patent number: 11260977
    Abstract: Filtration apparatus are disclosed. An example filtration apparatus includes a housing including a plurality of walls defining a cavity, a filter located in the cavity, and a cleanout system coupled to the housing. The cleanout system includes a cleanout passageway between an outer surface of the housing and the filter. The cleanout system includes a cleanout inlet accessible from the outer surface of the housing and a cleanout outlet in fluid communication with the filter. The cleanout system enables removal of particulate from the filter without removing the filter from the housing.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: March 1, 2022
    Assignee: The Boeing Company
    Inventors: Mary E. Beckman, Andrew Leung
  • Patent number: 11114319
    Abstract: A heat treatment apparatus includes a heating unit provided around a processing container accommodating a substrate; a plurality of blowing units configured to blow a cooling medium into a space between the processing container and the heating unit; and a shutter configured to simultaneously opens/closes at least two of the plurality of blowing units and including a slit formed corresponding to each of the blowing units.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 7, 2021
    Inventors: Tatsuya Yamaguchi, Yasuaki Kikuchi, Koji Yoshii, Wataru Nakajima, Norio Baba
  • Patent number: 11058977
    Abstract: A filter medium includes a plurality of layers each including an undulating strip of solidified material.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: July 13, 2021
    Assignee: Caterpillar Inc.
    Inventors: Javier A. Rodriguez, Darrell Lee Morehouse, III, Philip Carl Spengler
  • Patent number: 10981335
    Abstract: A method for manufacturing a filter medium includes providing a computer-readable three-dimensional model of the filter medium including a plurality of segments, each segment of the three-dimensional model being configured to be converted into a plurality of slices that each define a cross-sectional layer of the filter medium, each segment including an undulating layer extending along a predetermined direction that is different than the predetermined direction of the undulating layer of the other segment; and successively forming each layer of the filter medium by additive manufacturing.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: April 20, 2021
    Assignee: Caterpillar Inc.
    Inventors: Javier A. Rodriguez, Darrell Lee Morehouse, III, Philip Carl Spengler
  • Patent number: 10954860
    Abstract: A fuel filter comprises a filter screen, a heating element, and a coating. The filter screen includes a first hollow member. The heating element is disposed within the first hollow member. The coating is formed of a thermally conductive, electrically insulating ceramic in a hydrodynamic filtering pattern surrounding the filter screen but having a different shape than a shape of the hollow member.
    Type: Grant
    Filed: December 11, 2014
    Date of Patent: March 23, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Taylor Fausett, Patrick M. Wasson
  • Patent number: 10912901
    Abstract: An active smoke filtration unit is used to remove smoke during laparoscopic surgery. The active smoke filtration unit is part of a recirculation circuit. The recirculation circuit is pneumatically isolated from a primary flow generator, such as an insufflator, by a valve assembly. The active smoke filtration unit can be housed separately from the valve assembly or together with the valve assembly. The recirculation circuit can include a humidifier to heat and humidify the insufflation gases.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: February 9, 2021
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Wisnu Arya Surendra, Ali Ghalib Abdul Rahman Ghalib, Shahar Dor-Zidon, Joseph Patrick Walter Strevens, Michael Joseph Blackhurst
  • Patent number: 10906758
    Abstract: Apparatus for air flow limiting comprise a vertically oriented tube, a sail assembly positioned in the tube and moveable therewithin responsively to air flow through the tube to limit rate of air flow through the tube and halt air flow through the tube upon air flow rate through the tube exceeding a preselected value, and a moveable stop for adjustably changing the length of travel of the sail assembly thereby changing the maximum amount of air flow.
    Type: Grant
    Filed: February 8, 2019
    Date of Patent: February 2, 2021
    Inventor: Stephen B. Maguire
  • Patent number: 10898845
    Abstract: A mobile dust extraction device for filtering air, the mobile dust extraction device including a filter housing having at least one air filter, an inlet housing fluidly connected to the filter housing, a fan assembly including a fan, a fan inlet and a fan outlet, the fan assembly fluidly connecting the filter housing to the fan outlet, a support frame for supporting the filter housing, inlet housing and the fan assembly and a drive mechanism for propelling the mobile dust extraction device.
    Type: Grant
    Filed: September 12, 2017
    Date of Patent: January 26, 2021
    Assignee: Fanca Technologies Pty Ltd.
    Inventor: Andrew Fanning
  • Patent number: 10865677
    Abstract: An embodiment of an exhaust gas purification device has a function of removing soot adhered to an NOx catalyst arranged inside a cylindrical casing part by injecting pressurized air. The device includes a plurality of air injection nozzles arranged on a side wall of the casing part on an upstream side of the NOx catalyst, which are each configured to generate an impulse wave by injecting pressurized air into the casing part, wherein the air injection nozzles successively inject one by one an equal flow quantity of pressurized air, for a period, at predetermined time intervals.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: December 15, 2020
    Inventors: Yoshinori Fukui, Arata Hayata, Yoshihiro Yamaguchi, Tsuyoshi Inoue
  • Patent number: 10835853
    Abstract: A rail vehicle or locomotive includes a machine compartment, a cooling air flow system supplying the machine compartment, and a separating device separating particles from the air flow. The separating device includes a cyclone separator, a raw air channel feeding a raw air flow with particles to the separator and a clean air channel leading a clean air flow away from the separator. The separator has a box-shaped housing having a plurality of cyclones penetrating the housing for separating particles from the raw air flow into the housing and a discharge opening discharging separated particles from the housing. The discharge opening is connected to a constricted section of a Venturi nozzle suctioning an exhaust air flow having discharged particles. The Venturi nozzle is connected to the raw air channel by a branching side channel. The vacuum at the discharge opening suctioning the exhaust air flow is compact and economical.
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: November 17, 2020
    Assignee: Siemens Mobility GmbH
    Inventors: Tim Duennwald, Arthur Obermaier, Thomas Plinninger
  • Patent number: 10828592
    Abstract: A removable filter system and a dust collector with the removable filter system. The dust collector includes a filter carriage movably connected to a carriage base; at least one filter and filter support removably connected to the filter carriage. The filter carriage is movable between at least three positions: in the first position the filter being in an operational location, in the second position the filter being vertically lower but inside the dust collector, and in the third position the filter being outside the dust collector. A method for replacing a filter in the dust collector includes lowering the filter with the filter carriage; translating the filter and carriage out of the dust collector housing; removing the filter from the carriage; placing a replacement filter on the carriage; translating the replacement into the dust collector housing; and raising the filter carriage to lock the replaced filter into an operational location.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 10, 2020
    Inventors: Martin Brisebois, Denis Houle, Michel Sirois
  • Patent number: 10814262
    Abstract: A flow control device for controlling fluid flow into a filter cartridge. The flow control device comprises a hollow body comprising a fluid flow inlet and a fluid flow outlet. The flow control device is configured to split fluid flowing toward the filter cartridge into at least two distinct flow streams, a first distinct flow stream of the at least two distinct flow streams being a flow stream which flows into the hollow body through the fluid flow inlet and out of the hollow body through the fluid flow outlet, and a second distinct flow stream of the at least two distinct flow streams being a flow stream which does not flow into the hollow body through the fluid flow inlet and out of the hollow body through the fluid flow outlet.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 27, 2020
    Assignee: AAF LTD.
    Inventors: Paul Jackson, Mark Smith, Rodrigo Nessi
  • Patent number: 10773202
    Abstract: A filter element includes a construction of pleated filter media defining an interior volume. First and second opposite end caps are secured to opposite ends of the filter media. A support structure supports the filter media and is operably oriented in the interior volume. The support structure extends from the first opposing interior face to the second opposing interior face. The support structure is provided to extend less than a full extension between the first end cap and second end cap.
    Type: Grant
    Filed: February 20, 2017
    Date of Patent: September 15, 2020
    Assignees: Donaldson Company, Inc., IFIL.USA, LLC
    Inventors: Philip Edward Johnson, Jonathan G. Parsons, John K. Falk, III
  • Patent number: 10369524
    Abstract: The present invention provides an apparatus including: a filter medium having a slack state and a ballooned state and an elastic support attached to the filter medium to define a contiguous fluid flow path through the filter medium and the support. The elastic support is adapted to displace the filter medium repeatedly between the slack state and the ballooned state; the ballooned state is out-of-plane with respect to the slack state; and the slack state of the filter medium provides for areal strain greater than about 10% of the ballooned state. A method of cleaning a filter medium in a flow path of a fluid containing a suspended component is also described.
    Type: Grant
    Filed: January 5, 2015
    Date of Patent: August 6, 2019
    Assignee: W. L. Gore & Associates, Inc.
    Inventor: Gary P. Harp
  • Patent number: 10363511
    Abstract: A dust collector provided with a shunt guide plate includes a main body, a filter drum, a dust collecting barrel and an induced draft device. A cover plate is fixed between the main body and the dust collecting barrel, having a central portion bored with an insert hole corresponding to the main body, and a guide plate is transversely disposed under the cover plate. Thus, the induced draft device is started to absorb airflow with dust into the main body and, when passing through the insert hole of the cover plate, the airflow will be stopped by the guide plate and forced to flow through two sides of the guide plate to form a shunt effect. Thus, when airflow gets into the dust collecting barrel, the dust in the dust collecting barrel will not be affected to rise, enhancing dust collecting effect of the dust collecting barrel.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: July 30, 2019
    Inventor: Yuan-Tai Cheng
  • Patent number: 10286360
    Abstract: Method for removal of soot, ash and metals or metal compounds, together with removal of NOx and SOx being present in process off-gasses or engine exhaust gasses.
    Type: Grant
    Filed: February 23, 2015
    Date of Patent: May 14, 2019
    Assignees: Haldor Topsoe A/S, Ecospray Technologies S.r.l.
    Inventors: Keld Johansen, Maurizio Archetti
  • Patent number: 10279296
    Abstract: An air filtering system for an electrical enclosure including at least one filtering element arranged to filter an air flow injected into the inlet of the enclosure by a fan device, the system also including several independent filtering cells Ci, with i ranging from 1 to n and n greater than or equal to 3, each filtering cell Ci having a variable filtering capacity, each filtering cell Ci, with i greater than or equal to 2, is rendered active to filter a part of the air flow when the sum of the filtering capacities of the cells, ranging from C1 to Ci?1, drops below a specific threshold.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 7, 2019
    Inventors: Josep Lopez, Alain Perrin
  • Patent number: 10252207
    Abstract: A filter element for filtering media with a pleated filter medium is described. Each pleat (6) is formed by two pleated sheets which form a pleat tip (7) with one another on the crude side (3) exposed to oncoming flow. Two neighboring pleats (6) form a pleat base (8) with one another, wherein the crude side (3) and/or the clean side (4) of the filter medium has a plurality of elongated adhesive sections along at least two adhesive traces (14), each having at least one adhesive section and each having at least one adhesive interruption (15). The mutual spacing of the two pleated sheets in the region of the pleat tip (7) is between zero and two mm or the two pleated sheets are in contact with one another in the region of the pleat tip (7), wherein the pleat spacing (9) between the two pleated sheets of a pleat pocket (11) amounts to at least twice the pleat spacing in the region of the pleat tip 7 in the region of the pleat base (8).
    Type: Grant
    Filed: July 1, 2015
    Date of Patent: April 9, 2019
    Assignee: MANN+HUMMEL GmbH
    Inventors: Gelase Mbadinga Mouanda, Michael Heim, Gunnar-Marcel Klein
  • Patent number: 10245543
    Abstract: The air filter systems described herein include one or more pulse collectors and pulse generators aligned along pulse axes. The pulse generators and filter elements may be arranged along a pulse distance as measured from a pulse outlet to a filter element opening. The pulse collectors and the filter elements may have openings with a relationship between them within parameters described herein. The pulse collectors may have a relationship between their hydraulic diameter and their length within parameters described herein. The pulse collectors may include a filter section and a pulse section that meet at a junction along a length of the pulse collector. The pulse sections may have a hydraulic diameter that increases when moving from the junction to the tube sheet opening of the pulse section. The filter sections may have a hydraulic diameter that remains constant when moving from the junction to the filter end opening of the filter section.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: April 2, 2019
    Inventor: Thomas D. Raether
  • Patent number: 10232417
    Abstract: The present disclosure provides a method for recycling soil contaminated with mercury and dioxin. The method includes: desorbing mercury and dioxin from the contaminated soil by an indirect rotary furnace; condensing the mercury and discharging it by a condensing and discharging unit; and a secondary indirect burner for decomposing dioxin at a high temperature, so as for the concentration of the contaminants in the exhaust being examined to meet regulation standards and the treated soil to meet the current regulations. The present disclosure also provides an apparatus for recycling contaminated soil containing mercury and dioxin.
    Type: Grant
    Filed: December 13, 2017
    Date of Patent: March 19, 2019
    Assignee: China Petrochemical Development Corporation
    Inventors: She-Sheng Su, Yi-Shan Shen
  • Patent number: 10196949
    Abstract: Method and system for removal of particles such as soot, ash and heavy metals, and optionally additionally NOX and SOX being present in exhaust gas from an engine or process equipment.
    Type: Grant
    Filed: March 17, 2016
    Date of Patent: February 5, 2019
    Assignees: Haldor Topsoe A/S, Ecospray Technologies S.r.l.
    Inventor: Maurizio Archetti
  • Patent number: 10173172
    Abstract: A device for treating a gas laden with pollutants, includes at least one adsorption module for adsorbing the pollutants, which is utilized in an adsorption apparatus. The adsorption module includes at least one electrically conductive layer of an activated carbon fiber mat, an electric current circuit for heating the activated carbon fiber mat for the desorption of the adsorbed pollutants, and distributing conduit which is routed into the center of the adsorption module and has outlet openings for a flush gas for inertizing and rinsing the activated carbon fiber mat.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: January 8, 2019
    Assignee: SILICA Verfahrenstechnik GmbH
    Inventors: Andreas Hartbrich, Gerd Hoehne, Burkhard Schlicht, Jens Moellmer, Mike Wecks, Joerg Hofmann
  • Patent number: 10161359
    Abstract: A filter assembly for a vehicle can be configured to be in fluid communication with a source of compressed natural gas and coolant for an engine. The filter assembly, when so arranged, filters the compressed natural gas and routes the coolant there through to warm the filter assembly.
    Type: Grant
    Filed: September 6, 2016
    Date of Patent: December 25, 2018
    Inventors: Trevor Milton, Morgan MacKelprang, Ralph Hilton
  • Patent number: 10156211
    Abstract: Methods and systems are provided for cleaning an exhaust particulate filter by routing air via the exhaust particulate filter during a vehicle-off condition. In one example, during vehicle-off conditions, a turbocharger may be reverse rotated via an electric motor or an engine may be reverse rotated via an electric machine to route air via the exhaust particulate filter and the soot collected from the particulate filter may then be deposited on an air filter coupled to the intake manifold. During a subsequent engine start, the soot from the intake air filter may be routed to the engine cylinders for combustion.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: December 18, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Douglas Raymond Martin, Tyler Kelly, Timothy Stolzenfeld
  • Patent number: 10155196
    Abstract: A catalytic converter reactor having in-built catalytic converter modules, wherein the total flow impingement surface area provided by the catalytic converter elements fitted in the catalytic converter modules is larger than the flow impingement surface area of the catalytic converter reactor, the module impingement surface area being defined by the catalytic converter module surfaces facing the main flow direction, and the catalytic converter modules being positioned so that the waste gas flows through the catalytic converter elements contained therein in a direction different from the flow direction on the intake and exit sides.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: December 18, 2018
    Inventors: Kurt Orehovsky, Michael Aumann, Andreas Hartung, Thomas Krainer, Thomas Nagl, Gerhard Poelzl, Mario Schweiger
  • Patent number: 10137396
    Abstract: A filter element includes a media pack and a gasket member. The gasket member includes first and second gasket regions separated by a channel. The elements are usable in a dust collector having a dirty air inlet, a clean air outlet, and a tubesheet dividing between an unfiltered and a clean air volume. An element is removably mounted and sealed within the tube sheet. At least one projection angled relative to a plane of the tube sheet extends into the channel of the gasket member. A method of servicing a dust collector includes removing a first filter element from the tube sheet in the housing, and then sealing a second filter element against the tube sheet by orienting at least one projection extending from a plane of the tube sheet into a channel defined by a gasket member secured to the second filter element. An axial force is exerted to form a seal between the gasket member and the tube sheet.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: November 27, 2018
    Assignee: Donaldson Company, Inc.
    Inventors: Thomas D. Raether, Brian Zauner, Jim C. Rothman
  • Patent number: 10065144
    Abstract: According to the invention, the filter plant comprises a gas feed (compressed air feed system) which supplies the filter plant with a cleaning medium at a feed pressure pN. The filter plant also comprises a cleaning tank which is fed by the gas feed and in which the cleaning medium is stored at a cleaning pressure pT. Furthermore, the filter plant also comprises a pressure filter with a filter pressure pF. The pressure filter is cleaned cyclically in pre-determined time intervals or in a manner dependent on differential pressure by the cleaning medium from the cleaning tank.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: September 4, 2018
    Inventor: Thilo Weissert
  • Patent number: 10060313
    Abstract: A particulate filtering apparatus for dry filtering exhaust gases of a diesel engine includes at least two compartments independently arranged in parallel with respect to a flow of the exhaust gases. Each of the compartments is equipped with at least one shut-off valve for regulating the flow of gas passing through the compartment and further includes one or more filters adapted to hold the particulate and an emission device to generate a countercurrent gas pulse flow at the one or more filters. A central control unit operates and controls the at least one shut-off valve and of said emission device. Each of the at least two compartments further includes an injector operably controlled by the central control unit for the inlet of hot gases into the at least two compartments.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: August 28, 2018
    Assignee: Ecospray Technologies S.R.L.
    Inventor: Maurizio Archetti
  • Patent number: 10054050
    Abstract: An aeroengine has an inlet system with a forward end with respect to a flight direction. The inlet system includes a main inlet duct for selectively directing a first air flow from a forward main intake opening of the main inlet duct to a compressor rotor, the forward main intake opening being defined at the forward end of the inlet system and a secondary inlet duct for directing a second air flow from a secondary intake opening of the secondary inlet duct to the compressor rotor only when the main inlet duct is closed. A control apparatus is provided for selecting the first and second air flow to enter into the compressor rotor.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: August 21, 2018
    Inventors: Michel Labrecque, Vincent Couture-Gagnon, Richard Ullyott
  • Patent number: 9874126
    Abstract: A particular trap is regenerated without the use of heat. The regeneration is accomplished using a valving mechanism for periodically creating a reverse pressure throughout the entire trap, after the reverse pressure is created controls are operative to start a regeneration cycle by creating a substantially instantaneous reverse pressure drop across the porous walls of the entire trap to dislodge accumulated particulate cake and by causing the filtered exhaust gas to flow back through the porous walls to remove the dislodged particulate from the trap. A settling tank is connected to the exhaust pipe upstream of the trap to receive and store the dislodged particulate. The controls are operative to return the system to its filtering operation. Gaseous effluent from the tank is returned to the exhaust system upstream of the filter to provide a “closed system” in which only filter gas is discharged to atmosphere.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: January 23, 2018
    Assignee: Illinois Valley Holding Company
    Inventors: Brett Bailey, William Mitchener
  • Patent number: 9839874
    Abstract: A method and device for regeneration of an adsorption air dryer having at least two desiccant-filled drying vessels connected in parallel, wherein a humid compressed-air stream generated by a compressor flows through one of the drying vessels in a drying phase and a dry compressed-air stream flows through the other drying vessel, for the purpose of dewatering the desiccant, in a simultaneous regeneration phase, wherein a valve arrangement is provided for switching the drying vessels alternately between drying phase and regeneration phase during normal operation, wherein the control mechanism are provided for implementing a post-regeneration phase, which control mechanism initiates a further flow through the drying vessel with dry compressed air for complete regeneration and also a flow through the other drying vessel; with dry compressed air for complete regeneration, so that, upon the next start of operation of the adsorption air dryer, operation commences with fully regenerated drying vessels.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: December 12, 2017
    Inventors: Thomas Kipp, Christian Urra, Thomas Merkel, Gert Assmann
  • Patent number: 9796060
    Abstract: A fluid supply apparatus (2) for a machine tool comprising a header portion (4) and one or more fluid manifolds (6, 8) attachable to the header wherein the fluid manifolds are quickly and easily replaceable on the header without the use of tools.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: October 24, 2017
    Inventor: Daniel D. Wood
  • Patent number: 9782711
    Abstract: Systems and methods for automatic control of a baghouse fabric filter system as a single unit to maintain a consistent pressure drop are disclosed. The fabric filter system may be a pulse jet cleaning system, and a controller may be provided to receive inputs from pressure sensors and other components and to control activation of pulse pipes for cleaning filter bags. The controller may adjust parameters including the dwell time between pulses, the duration of each pulse, and the pulse air pressure. The controller may further optimize these parameters to provide the minimum cleaning necessary per pulse to achieve the consistent differential pressure. By continuously adjusting the parameters, the system maintains the maximum amount of filter cake on the bags to promote optimal emissions control performance.
    Type: Grant
    Filed: January 21, 2015
    Date of Patent: October 10, 2017
    Inventor: Robert Barker
  • Patent number: 9717816
    Abstract: A deodorization and sterilization apparatus and method, which increases an amount of generated active species and collects floating bacteria or odor materials in air at one place, such that the active species make contact with the collected floating bacteria or odor materials to achieve high-efficiency sterilization and deodorization. A pair of electrodes is provided, plasma discharge is carried out by applying designated voltage between the pair of electrodes, fluid passage holes are provided at corresponding parts of respective electrodes so as to communicate with each other, and at least one absorption member to absorb floating bacteria or odor materials is disposed at the downstream of a fluid passing through the fluid passage holes.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: August 1, 2017
    Inventors: Miyamoto Makoto, Takenoshita Kazutoshi, Kumagai Yuuki, Nakayama Yoko
  • Patent number: 9718018
    Abstract: A filter cleaning system for cleaning a filter element is provided. The filter cleaning system includes a set of pulse nozzles and a compressed air supply, which rotate together during a cleaning cycle to release pulse blasts at predetermined time intervals to clean the filter element.
    Type: Grant
    Filed: May 23, 2014
    Date of Patent: August 1, 2017
    Assignee: United Air Specialists, Inc.
    Inventors: Travis Haynam, Matt Stehlin, Cathy Haglund
  • Patent number: 9694307
    Abstract: The present invention relates to a filter assembly comprising at least one media pack arranged in a frame structure in which the at least one media packs is pleated and having opposing first and second open ends, and a corresponding method for manufacturing such a filter assembly for removing particles from an air stream. The method for manufacturing a filter assembly for removing particles from an air stream said comprises for each media pack sealing the first and second open ends in a first molding step, thereby providing a sealed first edge and a sealed second edge of each respective media pack, and subsequently arranging the at least one media pack in the frame structure and in a second molding step securing and sealing the sealed first edge and the sealed second edge, respectively, to at least one frame element of the frame structure.
    Type: Grant
    Filed: September 12, 2012
    Date of Patent: July 4, 2017
    Assignee: CAMFIL AB
    Inventor: Erik Lans
  • Patent number: 9669344
    Abstract: The present invention relates to a hot gas filtration system and a process for regenerating such a hot gas filtration system, said filtration system comprising a filter vessel, a tubesheet separating the interior of said filter vessel into a raw gas section and a clean gas section, and a plurality of filter elements. Said filter elements, arranged in two or more groups, are connected to the tubesheet with a clean end and extend with a raw gas portion into the raw gas section. Two or more plenum chambers are accommodated in the clean gas section and groupwise accommodate the clean gas ends of the filter elements, each of said plenum chambers comprising a gas exchange opening providing a direct fluid communication with the clean gas section.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: June 6, 2017
    Assignee: Pall Corporation
    Inventors: Steffen Heidenreich, Walter Haag
  • Patent number: 9657621
    Abstract: Exhaust aftertreatment systems and methods are described for reducing emissions output therefrom. In one example, an exhaust gas aftertreatment system comprises a first catalyst downstream of a branchpoint in a first exhaust pathway, a second catalyst downstream of the branchpoint in a second exhaust pathway, an electrical heater positioned upstream of the branchpoint for heating the exhaust flow, a control unit for adjusting an exhaust heating current of the electrical heater, and a valve for adjusting a distribution of exhaust flow to the first and second catalyst, the control unit including instructions to adjust the valve responsive to a substrate temperature within one or more of the first and second catalysts. In this way, an exhaust system with increased efficiency across a range of operating temperatures is realized that reduces emissions and energy expended during usage.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: May 23, 2017
    Assignee: Ford Global Technologies, LLC
    Inventor: Devesh Upadhyay
  • Patent number: 9623355
    Abstract: The present disclosure relates to a filter element that includes a frame and bag-type filter pockets which are connected to the frame. The filter pockets have an inflow side and an outflow side, wherein at least one opening is present on the inflow side for the inlet of a fluid to be filtered by the filter pockets. The interior of each of the filter pockets tapers in the direction of their respective outflow side. Fluid-guiding elements are provided on the inflow and/or the outflow side of the filter pockets. An efficient filter element in which the fluid to be filtered is effectively cleaned is therefore provided.
    Type: Grant
    Filed: May 22, 2013
    Date of Patent: April 18, 2017
    Inventors: Thomas Caesar, Mark Stiborsky, Heiko Manstein, Steffen Grunz
  • Patent number: 9604172
    Abstract: Diverging nozzles and filter element cleaning systems using the diverging nozzles to produce reverse gas pulses in a variety of cleaning methods are described herein.
    Type: Grant
    Filed: March 4, 2014
    Date of Patent: March 28, 2017
    Inventor: Thomas D. Raether
  • Patent number: 9468878
    Abstract: A filtration system particularly suited for removing a particulate material from a hot gas includes a housing, a collection system including an array of collection elements, a cleaning system to clean the collected particulate material from the collection elements, and a removal system for removing the collected particulate material from the housing.
    Type: Grant
    Filed: December 3, 2013
    Date of Patent: October 18, 2016
    Assignee: Cambridge International, Inc.
    Inventors: Maxwell Lawrence Keeling, Melody Elizabeth Fernaays, Matthew Charles O'Connell, Grace Amarachukwu Pokoo Aikins, George H. Messick, Jr., Robert E. Maine, Jr.
  • Patent number: 9463408
    Abstract: A filter assembly for a vehicle can be configured to be in fluid communication with a source of compressed natural gas and coolant for an engine. The filter assembly, when so arranged, filters the compressed natural gas and routes the coolant there through to warm the filter assembly.
    Type: Grant
    Filed: May 6, 2014
    Date of Patent: October 11, 2016
    Assignee: Dhybrid Systems, LLC
    Inventors: Trevor Milton, Morgan Mackelprang, Ralph Hilton
  • Patent number: 9441583
    Abstract: An air filter assembly for a machine is disclosed. The air filter may have a filter medium, and a side wall connected to the filter medium on a first side of the filter medium. The side wall may have a first engagement feature and a second engagement feature. At least one of the first engagement feature and the second engagement feature may project from the side wall. The first engagement feature and the second engagement feature may be configured to slidingly engage a filter housing.
    Type: Grant
    Filed: June 3, 2014
    Date of Patent: September 13, 2016
    Assignee: Caterpillar Inc.
    Inventors: Timothy S. Finn, Shawn M. Ryon
  • Patent number: 9409113
    Abstract: The present invention relates to a pulse-jet cleaning device for filter with a self-oscillating nozzle, in which a tube sheet of the filter is provided with a filtration unit thereon, with a cleaning gas chamber above the tube sheet and a dust-containing gas chamber under the tube sheet; and the pulse-jet cleaning device includes an ejector and a back-flushing pipeline, with one end of the back-flushing pipeline connected to a back-flushing gas tank through a pulse back-flushing valve, the other end of the back-flushing pipeline being provided with a self-oscillating nozzle corresponding to the top portion of the ejector; and the self-oscillating nozzle includes a hollow cylindrical self-oscillating chamber, which has a gas inlet at an upper end connected to the back-flushing pipeline and a gas outlet at a lower end.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: August 9, 2016
    Assignee: China University of Petroleum—Beijing
    Inventors: Zhongli Ji, Xiaolin Wu, Honghai Chen, Liang Yang, Zhiyi Xiong
  • Patent number: 9315384
    Abstract: The present invention provides a carbon nanomaterial production apparatus 1 that includes a reaction tube 2 into which raw material gas and carrier gas are supplied and accordingly in which carbon nanomaterial is grown, a connection tube 4 that is connected to the reaction tube 2 and through which an aerosol-like mixture of the carbon nanomaterial and the carrier gas passes, and a collection tube 3 that is connected to the connection tube 4 and collects the carbon nanomaterial from the mixture. The collection tube 3 includes a discharge section 32 that is located above a junction 33 with the connection tube 4 and discharges the carrier gas contained in the mixture to outside, and a trapping section 31 that is located below the junction 33 with the connection tube 4 and traps the carbon nanomaterial that is separated from the mixture by gravitational sedimentation.
    Type: Grant
    Filed: February 17, 2011
    Date of Patent: April 19, 2016
    Inventors: Suguru Noda, Toshio Osawa, Dong Young Kim, Eisuke Haba, Shunsuke Ueda
  • Patent number: 9309841
    Abstract: An air cleaner assembly includes a housing having an outer wall defining an air flow inlet, an air flow outlet and a hollow interior section. The housing is openable for service access to the interior section. A serviceable and selectively removable filter cartridge is positioned in the housing. The filter cartridge includes filter media surrounding an open central interior. A pulse jet distribution arrangement communicates with the interior of the housing and includes a device configured to direct a pulse of compressed gas into the interior of the filter cartridge. An evacuation valve arrangement is mounted to the housing to receive ejected dust from the filter cartridge and direct the received ejected dust out of the housing. The valve arrangement includes a frame, a blocking element mounted for reciprocation in relation to the frame and a biasing element for urging the blocking element into a closed position.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: April 12, 2016
    Assignee: Maradyne Corporation
    Inventors: Jason D. Troxell, Paul D. Ellsworth, Robert Dingess
  • Patent number: 9283504
    Abstract: A bag filter assembly for cleaning dust-laden gases has a housing, which is divided into a filtered-gas side and an unfiltered-gas side by a bag bottom formed with openings. Several filter bags with a flat cross-section and support baskets are arranged in the bag bottom openings. The filter bags have support baskets and injector nozzle at the open end for conducting and accelerating compressed-air pulses for dedusting. The injector nozzle protrudes at least partially into the openings of the bag bottom. Sealing elements are arranged on the outside of the injector nozzle at the level of the bag bottom in order to form a defined gap for a defined compression of the filter bag between the sealing elements and the jacket surface of the opening in the bag bottom and thus to independently seal the filter bag with respect to the opening of the bag bottom.
    Type: Grant
    Filed: April 4, 2012
    Date of Patent: March 15, 2016
    Assignee: Scheuch GmbH
    Inventors: Günter Schwarzl, Manfred Lisberger, Jürgen Daxdobler, Josef Helml
  • Patent number: 9200568
    Abstract: The present application provides a pulse filtration system for use with a compressor of a gas turbine engine. The pulse filtration system may include a pulse filter, a compressed air system in communication with the pulse filter, and a filter bag surrounding the pulse filter in whole or in part.
    Type: Grant
    Filed: September 24, 2014
    Date of Patent: December 1, 2015
    Assignee: General Electric Company
    Inventors: Bradly Aaron Kippel, Doug Byrd, Giorgio Marchetti