Patents by Inventor Nassim Khaled
Nassim Khaled has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10975748Abstract: A reductant dosing system includes: a doser; a fixed displacement pump in fluid communication with the doser; a reductant source in fluid communication with the fixed displacement pump; and a controller communicatively coupled to the fixed displacement pump to control operation of the fixed displacement pump, wherein the controller is programmed to operate the fixed displacement pump using a pressure control system responsive to data indicative of the doser not dosing reductant and the controller is programmed to operate the fixed displacement pump using a flow control system responsive to data indicative of the doser dosing reductant.Type: GrantFiled: April 5, 2018Date of Patent: April 13, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Masoud Ziabakhsh Deilami
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Patent number: 10934922Abstract: A method for diagnosing feedgas generation capacity of an oxidation catalyst in an exhaust aftertreatment system includes: determining a first temperature value at a first location in the exhaust aftertreatment system upstream of an oxidation catalyst, the oxidation catalyst being upstream of a selective catalytic reduction catalyst; determining a space velocity of the exhaust in the oxidation catalyst; determining an estimated exotherm value of the oxidation catalyst based on the first temperature value and the space velocity; instructing a doser of the aftertreatment system to dose hydrocarbon into the oxidation catalyst; determining an in-use exotherm value of the oxidation catalyst upon insertion of the hydrocarbon into the oxidation catalyst; and determining a fault condition based upon a comparison between the estimated exotherm value and the in-use exotherm value.Type: GrantFiled: October 14, 2019Date of Patent: March 2, 2021Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
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Patent number: 10926284Abstract: Proximity triggered water fountains may have proximity sensors configured to detect target(s), a processing unit communicably coupled to proximity sensors configured to transfer data related to the target(s) to the processing unit, nozzles and nozzle controllers, and collectors configured to receive water projected from the nozzles. The nozzle controllers may be controlled based on data received from the sensors. The nozzle controllers may be coupled to the nozzles of a water circulation system configured to adjust a water projection angle from the nozzles with respect to the ground. The water circulation system may use tank(s), pump(s), and supply and return line(s), with the nozzles, tank(s), pump(s), and supply and return line(s), being in fluid communication. The nozzles and collectors may be displaced a horizontal distance from each other such that outlets of the nozzles are not vertically above the collectors.Type: GrantFiled: August 11, 2020Date of Patent: February 23, 2021Assignee: Prince Mohammad Bin Fahd UniversityInventor: Nassim Khaled
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Patent number: 10829913Abstract: A hybrid system for freshwater production utilizing the latent heat of condensation of atmospheric air humidity as a source of thermal energy to evaporate freshwater in a brine or saline and delivered to the saline evaporating chamber by a heat pump. Distillates form on both sides of the heat transfer, and intensification of humidity condensation in the air leads to the intensification of saline evaporation contributing to the overall increased yield of freshwater. The process is optimized by integrated systems in which the waste heat of inside and outside sources and the heat sink effect of the saline feed amplify the COP and SEER indexes of the installation. The technological regimes in which the equipment is used are intensified and optimized, cutting the desalination costs to the ranges affordable to the general population residing in arid regions in need of such technology.Type: GrantFiled: August 13, 2020Date of Patent: November 10, 2020Assignee: Prince Mohammad Bin Fahd UniversityInventors: Faizan Ahmed, Nassim Khaled
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Publication number: 20200340866Abstract: A process for controlled heating of a sensor of an aftertreatment system comprising accessing several parameters, including an exhaust mass flow, an outlet temperature, an ambient air temperature, and an ambient air velocity, calculating a temperature of the sensor based on a thermal model and the accessed parameters, comparing the calculated temperature to a threshold temperature, and activating a controlled heating process for the sensor responsive to the calculated temperature being below the threshold temperature. The controlled heating process can include activating a heater to heat the sensor.Type: ApplicationFiled: November 28, 2017Publication date: October 29, 2020Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventor: Nassim Khaled
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Publication number: 20200123952Abstract: A controller for a dosing module including a pump, an inlet manifold coupled to the pump, a nozzle, an outlet manifold coupled to the nozzle, a first branch coupled to the inlet manifold and the outlet manifold and having a first flow restrictor and a first valve, a second branch coupled to the inlet manifold and the outlet manifold and having a second flow restrictor and a second valve, and a sensor coupled to the inlet manifold and the outlet manifold, includes an input/output interface and a processing circuit. The input/output interface is configured to electronically communicate with the first valve and the second valve. The processing circuit configured to selectively cause the first valve to be in a first valve first position, in which the first valve facilitates fluid communication from the inlet manifold to the outlet manifold through the first branch, and a first valve second position.Type: ApplicationFiled: December 20, 2019Publication date: April 23, 2020Applicant: Cummins Emission Solutions Inc.Inventors: Taren DeHart, Vaibhav J. Lawand, Stephen M. Holl, Paul Douglas Free, Nassim Khaled, Colin L. Norris
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Publication number: 20200072106Abstract: A system for controlling reductant spray momentum for a target spray distribution includes an exhaust system having an exhaust conduit with exhaust flowing therethrough, a reductant injection system for injecting reductant into the exhaust flowing through the exhaust system based on one or more injection parameters, a reductant supply system for supplying reductant to the reductant injection system based on one or more supply parameters, and a controller. The controller is configured to access current vehicle, engine, exhaust, or reductant condition parameters, determine one or more control parameters based on a control model and the accessed current vehicle, engine, exhaust, or reductant condition parameters, and modify a value of the one or more injection parameters or the one or more supply parameters to control the reductant spray.Type: ApplicationFiled: December 6, 2017Publication date: March 5, 2020Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Samuel Johnson, Nassim Khaled, Patrick C. Hudson
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Publication number: 20200056525Abstract: A reductant dosing system includes: a doser; a fixed displacement pump in fluid communication with the doser; a reductant source in fluid communication with the fixed displacement pump; and a controller communicatively coupled to the fixed displacement pump to control operation of the fixed displacement pump, wherein the controller is programmed to operate the fixed displacement pump using a pressure control system responsive to data indicative of the doser not dosing reductant and the controller is programmed to operate the fixed displacement pump using a flow control system responsive to data indicative of the doser dosing reductant.Type: ApplicationFiled: April 5, 2018Publication date: February 20, 2020Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventors: Nassim Khaled, Masoud Ziabakhsh Deilami
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Patent number: 10557397Abstract: A system for asynchronously delivering reductant from a reductant storage tank to a first selective catalytic reduction system and a second selective catalytic reduction system included in an aftertreatment system includes: a reductant insertion assembly fluidly coupled to the reductant storage tank, the reductant insertion assembly configured to be fluidly coupled to each of the first selective catalytic reduction system and the second selective catalytic reduction system, the reductant insertion assembly including a first injector fluidly coupled to the first selective catalytic reduction system, and a second injector fluidly coupled to the second selective catalytic reduction system; and a controller communicatively coupled to the reductant insertion assembly.Type: GrantFiled: June 18, 2019Date of Patent: February 11, 2020Assignee: Cummins Emission Solutions Inc.Inventor: Nassim Khaled
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Publication number: 20200040797Abstract: A method for diagnosing feedgas generation capacity of an oxidation catalyst in an exhaust aftertreatment system includes: determining a first temperature value at a first location in the exhaust aftertreatment system upstream of an oxidation catalyst, the oxidation catalyst being upstream of a selective catalytic reduction catalyst; determining a space velocity of the exhaust in the oxidation catalyst; determining an estimated exotherm value of the oxidation catalyst based on the first temperature value and the space velocity; instructing a doser of the aftertreatment system to dose hydrocarbon into the oxidation catalyst; determining an in-use exotherm value of the oxidation catalyst upon insertion of the hydrocarbon into the oxidation catalyst; and determining a fault condition based upon a comparison between the estimated exotherm value and the in-use exotherm value.Type: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Applicant: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
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Publication number: 20200033039Abstract: A refrigeration system includes an evaporator within which a refrigerant absorbs heat, a gas cooler/condenser within which the refrigerant rejects heat, a compressor operable to circulate the refrigerant between the evaporator and the gas cooler/condenser, a high pressure valve operable to control a pressure of the refrigerant at an outlet of the gas cooler/condenser, and a controller. The controller is configured to automatically generate a setpoint for a measured or calculated variable of the refrigeration system based on a measured temperature of the refrigerant at the outlet of the gas cooler/condenser. The setpoint is generated using a stored relationship between the measured temperature and a maximum estimated coefficient of performance (COP) that can be achieved at the measured temperature. The controller is configured to operate the high pressure valve to drive the measured or calculated variable toward the setpoint.Type: ApplicationFiled: July 16, 2019Publication date: January 30, 2020Applicant: Hill Phoenix, Inc.Inventors: Naresh Kumar Krishnamoorthy, Nassim Khaled
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Patent number: 10544721Abstract: A dosing module includes an inlet manifold, an outlet manifold, a first branch, and a second branch. The inlet manifold is configured to selectively receive reductant from a pump. The outlet manifold is configured to selectively provide the reductant to a nozzle. The first branch is coupled to the inlet manifold and the outlet manifold. The first branch is configured to selectively provide the reductant from the inlet manifold to the outlet manifold. The first branch includes a first flow restrictor configured to restrict the reductant as the reductant is provided to the outlet manifold. The second branch is coupled to the inlet manifold and the outlet manifold. The second branch is configured to selectively provide the reductant from the inlet manifold to the outlet manifold separately from the first branch. The second branch includes a second flow restrictor that is configured to restrict the reductant.Type: GrantFiled: December 11, 2017Date of Patent: January 28, 2020Assignee: CUMMINS EMISSION SOLUTIONS INC.Inventors: Taren DeHart, Vaibhav J. Lawand, Stephen M. Holl, Paul Douglas Free, Nassim Khaled, Colin L. Norris
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Patent number: 10539058Abstract: An aftertreatment system comprises a SCR system including at least one catalyst. A NOx sensor is positioned downstream of the SCR system. A controller is configured to determine an estimated engine NOx amount in the exhaust gas produced by an engine fluidly coupled to the aftertreatment system. The controller interprets an output value indicative of a first amount of oxygen in the exhaust gas downstream of the SCR system. The controller determines an adjusted engine NOx amount in response to the output value. A NOx sensor is positioned downstream of the selective catalytic reduction system and communicatively coupled to the controller. The NOx sensor is structured to provide the output value.Type: GrantFiled: July 29, 2016Date of Patent: January 21, 2020Assignee: Cummins Emission Solutions Inc.Inventors: Sriram Srinivasan, Nassim Khaled, Priya Naik
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Patent number: 10480384Abstract: Systems and methods are provided for feedgas diagnostics in a selective catalytic reduction (SCR) system. An example electronic system may be part of on-board diagnostic (OBD) functionality in a diesel fuel vehicle and may comprise circuits for defining and managing system conditions for hydrocarbon dosing, adjusting the dosing to a diesel oxidation catalyst (DOC) while the system is in operation, and defining a diagnostic framework based at least on exothermic properties of various components of a DOC such that a DOC may be monitored for failure and/or end of useful life (EUL). The electronic system may include a tuning circuit for calibrating the diagnostic framework.Type: GrantFiled: February 15, 2017Date of Patent: November 19, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas, Yinghuan Lei, Richard J. Ancimer
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Patent number: 10480375Abstract: A system for determining a performance status of an exhaust aftertreatment system may include determining an ammonia-to-nitrogen ratio using a sample ammonia input value and a sample NOx input value. An actual NOx input value and an actual ammonia input value can be received. An emission value from may be received from a first sensor. A NOx emission estimate, an ammonia slip estimate, and an optimal ammonia storage value for a selective catalytic reduction may be determined using an iterative inefficiency calculation based, at least in part, on the actual NOx input value, the actual ammonia input value, and the ammonia-to-nitrogen ratio; and the NOx emission estimate, the ammonia slip estimate, and the optimal ammonia storage value may be outputted to a diagnostic system.Type: GrantFiled: October 28, 2014Date of Patent: November 19, 2019Assignee: Cummins Emission Solutions Inc.Inventor: Nassim Khaled
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Patent number: 10436089Abstract: A system structured to measure at least one of particulate matter or ammonia in an exhaust aftertreatment system. The system includes a selective catalytic reduction catalyst, a doser disposed upstream of the selective catalytic reduction catalyst, a particulate filter, and a radio frequency sensor communicatively coupled to the diesel particulate filter. The radio frequency sensor is structured to measure at least one of particulate matter or ammonia.Type: GrantFiled: January 18, 2017Date of Patent: October 8, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Sriram Srinivasan
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Publication number: 20190301343Abstract: A system for asynchronously delivering reductant from a reductant storage tank to a first selective catalytic reduction system and a second selective catalytic reduction system included in an aftertreatment system includes: a reductant insertion assembly fluidly coupled to the reductant storage tank, the reductant insertion assembly configured to be fluidly coupled to each of the first selective catalytic reduction system and the second selective catalytic reduction system, the reductant insertion assembly including a first injector fluidly coupled to the first selective catalytic reduction system, and a second injector fluidly coupled to the second selective catalytic reduction system; and a controller communicatively coupled to the reductant insertion assembly.Type: ApplicationFiled: June 18, 2019Publication date: October 3, 2019Applicant: CUMMINS EMISSION SOLUTIONS INC.Inventor: Nassim Khaled
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Patent number: 10371036Abstract: A system and method for monitoring filtering condition in an aftertreatment system comprises measuring a first pressure upstream of a first particulate filter in the aftertreatment system. A second pressure downstream of the first particulate filter and upstream of a second particulate filter in the aftertreatment system is measured. A third pressure downstream of the second particulate filter is also measured. A difference in pressure between the second pressure and the third pressure is determined which corresponds to a filtering condition of the first particulate filter. The difference in pressure is compared with a predetermined threshold. If the difference in pressure exceeds the predetermined threshold the failure of the first particulate filter is identified.Type: GrantFiled: February 16, 2016Date of Patent: August 6, 2019Assignee: Cummins Emission Solutions Inc.Inventors: Nassim Khaled, Michael Haas
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Patent number: 10364731Abstract: A method for asynchronously delivering a reductant to a first selective catalytic reduction system and a second selective catalytic reduction system of an aftertreatment system via a reductant insertion assembly, the reductant insertion assembly comprising a first injector fluidly coupled to the first selective catalytic reduction system and a second injector fluidly coupled to the second selective catalytic reduction system, the method including: activating the first injector; maintaining the first injector activated for a first delivery time, thereby inserting a first amount of reductant into the first selective catalytic reduction system; deactivating the first injector; activating the second injector; and maintaining the second injector activated for a second delivery time, thereby inserting a second amount of reductant into the second selective catalytic reduction system.Type: GrantFiled: August 23, 2018Date of Patent: July 30, 2019Assignee: Cummins Emission Solutions Inc.Inventor: Nassim Khaled
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Publication number: 20190178130Abstract: A dosing module includes an inlet manifold, an outlet manifold, a first branch, and a second branch. The inlet manifold is configured to selectively receive reductant from a pump. The outlet manifold is configured to selectively provide the reductant to a nozzle. The first branch is coupled to the inlet manifold and the outlet manifold. The first branch is configured to selectively provide the reductant from the inlet manifold to the outlet manifold. The first branch includes a first flow restrictor configured to restrict the reductant as the reductant is provided to the outlet manifold. The second branch is coupled to the inlet manifold and the outlet manifold. The second branch is configured to selectively provide the reductant from the inlet manifold to the outlet manifold separately from the first branch. The second branch includes a second flow restrictor that is configured to restrict the reductant.Type: ApplicationFiled: December 11, 2017Publication date: June 13, 2019Applicant: Cummins Emission Solutions Inc.Inventors: Taren DeHart, Vaibhav J. Lawand, Stephen M. Holl, Paul Douglas Free, Nassim Khaled, Colin L. Norris