Patents by Inventor Paul PEAVLER
Paul PEAVLER 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: 11725604Abstract: The present disclosure relates to a method for controlling pressure of an engine, including a controller structured to implement the method and an engine system including the controller. More specifically, the present disclosure relates to a method based on a mass balance analysis of a fuel system to determine how much mass needs to be pumped to maintain or achieve a certain pressure for the engine. In some embodiments, the method analyzes how much mass can be pumped by each pumping event based on current engine conditions. The analysis is performed over the smallest repeatable pump events and cylinder events cycle, or “subcycle,” based on the number of pump events and cylinder events for a given engine configuration.Type: GrantFiled: August 2, 2019Date of Patent: August 15, 2023Assignee: Cummins Inc.Inventors: Paul Peavler, Donald J. Benson, David Michael Carey, Timothy J. Viola
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Patent number: 11486386Abstract: A fluid pump comprising a fluid inlet configured to receive a fluid, a plunger configured to reciprocate within a cylinder from a top dead center position to a bottom dead center position and back to the top dead center position during a given pumping cycle, a pumping chamber defined by the cylinder and the plunger, the pumping chamber being configured to receive the fluid from the fluid inlet, a control valve configured to open to allow fluid to be provided to the pumping chamber, and close after the plunger has passed the bottom dead center position, and a fluid outlet configured to receive a delivery amount of the fluid from the pumping chamber, wherein a first amount of fluid is configured to be provided to the pumping chamber, the first amount of fluid being greater than the delivery amount of fluid.Type: GrantFiled: October 14, 2020Date of Patent: November 1, 2022Assignee: CUMMINS INC.Inventors: Donald J. Benson, Bela Doszpoly, Paul Peavler
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Publication number: 20220252018Abstract: The present disclosure relates to a method for controlling pressure of an engine, including a controller structured to implement the method and an engine system including the controller. More specifically, the present disclosure relates to a method based on a mass balance analysis of a fuel system to determine how much mass needs to be pumped to maintain or achieve a certain pressure for the engine. In some embodiments, the method analyzes how much mass can be pumped by each pumping event based on current engine conditions. The analysis is performed over the smallest repeatable pump events and cylinder events cycle, or “subcycle,” based on the number of pump events and cylinder events for a given engine configuration.Type: ApplicationFiled: August 2, 2019Publication date: August 11, 2022Applicant: Cummins Inc.Inventors: Paul Peavler, Donald J. Benson, David Michael Carey, Timothy J. Viola
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Publication number: 20210340931Abstract: Methods and systems, using a controller (20), for performing fuel pressure control operation of an engine (12) having at least one cylinder (16) is disclosed. The controller (20) includes a fuel system control unit (42) configured to control a fuel pressure applied to at least one injector (18) of the engine (12) during a motoring condition period (412) based on a commanded pulse train duration (410). During the motoring condition period (412), no combustion occurs in the at least one cylinder (16) of the engine (12). The commanded pulse train duration is a time period during which the at least one injector (18) of the engine (12) is activated for a drain operation. The fuel system control unit (42) is configured to command the at least one injector (18), for the commanded pulse train duration during the motoring condition period (412), to release fuel from the at least one injector (18) without injecting the fuel into the at least one cylinder (16) of the engine (12).Type: ApplicationFiled: May 24, 2021Publication date: November 4, 2021Inventors: David M. Carey, Syed Shah Jalal, Richard J. Dudek, Ulf Carlsson, Paul Peavler
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Patent number: 11015548Abstract: Methods and systems, using a controller (20), for performing fuel pressure control operation of an engine (12) having at least one cylinder (16) is disclosed. The controller (20) includes a fuel system control unit (42) configured to control a fuel pressure applied to at least one injector (18) of the engine (12) during a motoring condition period (412) based on a commanded pulse train duration (410). During the motoring condition period (412), no combustion occurs in the at least one cylinder (16) of the engine (12). The commanded pulse train duration is a time period during which the at least one injector (18) of the engine (12) is activated for a drain operation. The fuel system control unit (42) is configured to command the at least one injector (18), for the commanded pulse train duration during the motoring condition period (412), to release fuel from the at least one injector (18) without injecting the fuel into the at least one cylinder (16) of the engine (12).Type: GrantFiled: December 14, 2017Date of Patent: May 25, 2021Assignee: Cummins Inc.Inventors: David M. Carey, Syed Shah Jalal, Richard J. Dudek, Ulf Carlsson, Paul Peavler
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Publication number: 20210131421Abstract: A fluid pump comprising a fluid inlet configured to receive a fluid, a plunger configured to reciprocate within a cylinder from a top dead center position to a bottom dead center position and back to the top dead center position during a given pumping cycle, a pumping chamber defined by the cylinder and the plunger, the pumping chamber being configured to receive the fluid from the fluid inlet, a control valve configured to open to allow fluid to be provided to the pumping chamber, and close after the plunger has passed the bottom dead center position, and a fluid outlet configured to receive a delivery amount of the fluid from the pumping chamber, wherein a first amount of fluid is configured to be provided to the pumping chamber, the first amount of fluid being greater than the delivery amount of fluid.Type: ApplicationFiled: October 14, 2020Publication date: May 6, 2021Inventors: Donald J. Benson, Bela Doszpoly, Paul Peavler
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Patent number: 10968857Abstract: A method and system is provided of controlling a pump having a pumping element configured to provide pressurized fuel to a common rail accumulator coupled to a plurality of fuel injectors configured to inject fuel into a corresponding plurality of cylinders of an engine, comprising: receiving rail pressure values indicating a current fuel pressure in the accumulator; and responding to the received at least one rail pressure value by controlling operation of the pumping element during each potential pumping event of the pumping element to generate actual pumping events during at least some of the potential pumping events to cause the rail pressure values to remain within a desired range and to at least one of increase an overall efficiency of the pump, decrease audible noise generated by the pump, increase reliability of the pump and reduce injection pressure variations at the plurality of fuel injectors.Type: GrantFiled: October 24, 2017Date of Patent: April 6, 2021Assignee: Cummins Inc.Inventors: Donald J. Benson, Paul Peavler
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Publication number: 20190331053Abstract: A method and system is provided of controlling a pump having a pumping element configured to provide pressurized fuel to a common rail accumulator coupled to a plurality of fuel injectors configured to inject fuel into a corresponding plurality of cylinders of an engine, comprising: receiving rail pressure values indicating a current fuel pressure in the accumulator; and responding to the received at least one rail pressure value by controlling operation of the pumping element during each potential pumping event of the pumping element to generate actual pumping events during at least some of the potential pumping events to cause the rail pressure values to remain within a desired range and to at least one of increase an overall efficiency of the pump, decrease audible noise generated by the pump, increase reliability of the pump and reduce injection pressure variations at the plurality of fuel injectors.Type: ApplicationFiled: October 24, 2017Publication date: October 31, 2019Applicant: Cummins Inc.Inventors: Donald J. Benson, Paul Peavler
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Patent number: 9644590Abstract: A fuel injector has a plurality of injection fuel delivery passages, which transport fuel from a proximate end to an injector cavity near the distal end of the fuel injector, wherein less than a total number of injection fuel delivery passages include an orifice. This configuration provides a reduction in fueling variation from pulse to pulse (multi-pulse) with respect to pulse separation due to pressure variation while allowing a sufficient amount of fuel flow to the injector cavity. Thus, the consistency of Start-Of-Injection (SOI) and opening rate both improve significantly and advantageously. For compactness, the orifices may be positioned in a cover plate used to retain the components of the injection control valve assembly and may further be arranged in an arc segment when viewed along a longitudinal axis.Type: GrantFiled: January 31, 2014Date of Patent: May 9, 2017Assignee: CUMMINS INC.Inventors: Paul Peavler, Donald J. Benson, Paul Douglas Free, Jeffrey C. Huang, Eric Benham, C. Edward Morris, Jr.
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Publication number: 20150219054Abstract: A fuel injector has a plurality of injection fuel delivery passages, which transport fuel from a proximate end to an injector cavity near the distal end of the fuel injector, wherein less than a total number of injection fuel delivery passages include an orifice. This configuration provides a reduction in fueling variation from pulse to pulse (multi-pulse) with respect to pulse separation due to pressure variation while allowing a sufficient amount of fuel flow to the injector cavity. Thus, the consistency of Start-Of-Injection (SOI) and opening rate both improve significantly and advantageously. For compactness, the orifices may be positioned in a cover plate used to retain the components of the injection control valve assembly and may further be arranged in an arc segment when viewed along a longitudinal axis.Type: ApplicationFiled: January 31, 2014Publication date: August 6, 2015Applicant: Cummins IncInventors: Paul Peavler, Donald J. Benson, Paul Douglas Free, Jeffrey C. Huang, Eric Benham, C. Edward Morris, JR.
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Publication number: 20140224223Abstract: A system and method is provided for controlling the amount of fuel delivered during an injection event by measuring the drain fuel flow from a valve that controls the injection event.Type: ApplicationFiled: February 8, 2013Publication date: August 14, 2014Applicant: CUMMINS INC.Inventors: Donald J. BENSON, Daniel E. ARONHALT, David M. CAREY, Sanjay MANGLAM, Hisham K. MOZAFFAR, Eric BENHAM, Paul PEAVLER