Patents by Inventor James J. Dehn
James J. Dehn 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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Publication number: 20200173379Abstract: A generator and off-board fuel delivery system is disclosed. The generator is configured to operate on one or more fuels, including on a gaseous fuel supplied from a pressurized fuel source through a gaseous fuel line. A fuel regulator system is located off board the generator and is configured to regulate the gaseous fuel supplied from the pressurized fuel source in a first stage, with the gaseous fuel regulated down to a reduced pressure in the first stage. A second stage of the fuel regulator system regulates the reduced pressure gaseous fuel, with the reduced pressure gaseous fuel from the first stage regulated down to a desired pressure in the second stage for delivery through the gaseous fuel line to operate the generator.Type: ApplicationFiled: February 6, 2020Publication date: June 4, 2020Inventors: Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Patent number: 10393034Abstract: A multi-fuel engine includes an engine operable on a liquid fuel and a gaseous fuel. The multi-fuel engine also includes a liquid cutoff solenoid coupled to open and close a liquid fuel path to the engine, and a gaseous cutoff solenoid coupled to open and close a gaseous fuel source to the engine. A switch couples a power source to the liquid cutoff solenoid and the gaseous cutoff solenoid to switch between fuel sources on-the-fly during engine operation.Type: GrantFiled: October 4, 2016Date of Patent: August 27, 2019Assignee: Champion Power Equipment, Inc.Inventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Publication number: 20190218980Abstract: A multi-fuel engine includes an engine operable on a liquid fuel and first and second gaseous fuels. The multi-fuel engine also includes a liquid cutoff solenoid selectively operable between open and closed positions to allow and inhibit a flow of the liquid fuel to the engine and at least one gaseous cutoff valve selectively operable between open and closed positions to allow and inhibit a flow of the first and second gaseous fuels to the engine. A jet block couples the first gaseous fuel source and the second gaseous fuel source to a carburetor connected to an intake of the engine, with the jet block being located downstream from the at least one gaseous cutoff valve. The jet block includes a first gaseous fuel jet to meter the first gaseous fuel to the carburetor and a second gaseous fuel jet to meter the second gaseous fuel to the carburetor.Type: ApplicationFiled: March 20, 2019Publication date: July 18, 2019Inventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Patent number: 10287967Abstract: An engine assembly including an internal combustion engine, an oil cooler connected to the engine to receive heated oil and discharge cooled oil, and an engine cover mounted to the internal combustion engine and having an opening to receive the oil cooler therein.Type: GrantFiled: April 30, 2014Date of Patent: May 14, 2019Assignee: Champion Power Equipment, Inc.Inventors: Mark J. Sarder, James J. Dehn, Hiroaki Sato
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Publication number: 20190078519Abstract: A mechanical fuel lockout switch for a dual fuel engine includes a mechanical fuel valve actuatable between a first position and a second position to selectively control fuel flow to the dual fuel engine from a first fuel source through a first fuel line and a second fuel source through a second fuel line. The mechanical fuel lockout switch also includes a fuel lockout apparatus coupled to the mechanical fuel valve. The mechanical fuel lockout switch communicates the first fuel source to the dual fuel engine and prevents communication between the second fuel source and the dual fuel engine when the mechanical fuel valve is in the first position, and communicates the second fuel source to the dual fuel engine and interrupts the first fuel source communication with the dual fuel engine when in the second position.Type: ApplicationFiled: November 15, 2018Publication date: March 14, 2019Inventors: Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Patent number: 10221780Abstract: A mechanical fuel lockout switch for a dual fuel engine includes a mechanical fuel valve actuateable between a first position and a second position to selectively control fuel flow to the dual fuel engine from a first fuel source through a first fuel line and a second fuel source through a second fuel line. The mechanical fuel lockout switch also includes a fuel lockout apparatus coupled to the mechanical fuel valve. The mechanical fuel lockout switch communicates the first fuel source to the dual fuel engine and prevents communication between the second fuel source and the dual fuel engine when the mechanical fuel valve is in the first position, and communicates the second fuel source to the dual fuel engine and interrupts the first fuel source communication with the dual fuel engine when in the second position.Type: GrantFiled: June 12, 2015Date of Patent: March 5, 2019Assignee: Champion Power Equipment, Inc.Inventors: Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Patent number: 10186931Abstract: A generator includes a multi-chamber generator enclosure, an engine mounted within the multi-chamber generator enclosure, and an alternator driven by the engine and positioned within at least one chamber of the multi-chamber generator enclosure. The generator also includes an exhaust system operatively coupled to the engine and extending from the engine through at least the at least one chamber of the multi-chamber generator enclosure having the alternator therein, and a heat shield substantially surrounding the exhaust system in the at least one chamber of the multi-chamber enclosure generator containing the alternator.Type: GrantFiled: May 4, 2015Date of Patent: January 22, 2019Assignee: Champion Engine Technology, LLCInventors: Leigh Jenison, Ian Schmit, James J. Dehn, Mark J. Sarder
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Patent number: 10167789Abstract: A dual fuel engine includes an engine operable on a gaseous fuel and a liquid fuel and has an electrical power generator. The dual fuel engine also includes a carburetor attached to an intake of the engine to mix air and fuel and connect to a gaseous fuel source and a liquid fuel source. A liquid fuel cut-off connects to the carburetor to selectively interrupt a flow of liquid fuel to the engine. The liquid fuel cut-off is operable in open and closed states such that the liquid fuel cut-off interrupts the flow of liquid fuel when closed. The dual fuel engine also includes controller operably connected to operate the liquid fuel cut-off in the open and closed states, and the controller may be programmed to implement a delay period upon engine startup before closing the liquid fuel cut-off.Type: GrantFiled: October 24, 2016Date of Patent: January 1, 2019Assignee: Champion Engine Technology, LLCInventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison, Hiroaki Sato
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Patent number: 10132224Abstract: An exhaust pipe mounted heat duct in an electrical generator includes an exhaust pipe coupleable to an internal combustion engine of the electrical generator to receive exhaust therefrom, the exhaust pipe having a first support member and a second support member extending outwards from the exhaust pipe. The exhaust pipe mounted heat duct also includes a heat duct assembly comprising a first component and a second component, the first component mounted to the first support member and a second component mounted to the second support member, the first component coupled to the second component to substantially surround the exhaust pipe.Type: GrantFiled: May 4, 2015Date of Patent: November 20, 2018Assignee: Champion Engine Technology, LLCInventors: Leigh Jenison, Ian Schmit, James J. Dehn, Mark J. Sarder, Jie Li, Chaoming Xu, Defeng Chen, Shujuan Wang
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Patent number: 9790902Abstract: A cylinder head for an internal combustion engine is disclosed having an intake port geometry configured to reduce fuel puddling and improve fuel atomization. The cylinder head includes a housing having a recess defining a top portion of a combustion chamber. The cylinder head further includes intake and exhaust ports defined by channels extending from the top portion of the combustion chamber to an outer end of the housing. An intake valve is positioned within the cylinder head to control communication of the intake port with the combustion chamber, and an exhaust valve is positioned within the cylinder head to control communication of the exhaust port with the combustion chamber. The intake port further includes a cross-section having a modified D-shape with a single 90 degree corner. The modified D-shape cross-section extends substantially a length of the intake port.Type: GrantFiled: May 6, 2014Date of Patent: October 17, 2017Assignee: Champion Engine Technology, LLCInventors: Russell J. Dopke, James J. Dehn
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Publication number: 20170126057Abstract: A generator includes an internal combustion engine operable on a gaseous fuel and an alternator driven by the engine to produce electrical power for distribution from the generator. The generator may also include a 24-volt starter motor to crank the engine, one or more batteries to provide electrical power to operate the starter motor, and a magneto driven by the engine to provide spark ignition of the gaseous fuel when starting the engine with the starter motor.Type: ApplicationFiled: October 18, 2016Publication date: May 4, 2017Inventors: Leigh Jenison, James J. Dehn, Mark J. Sarder, Chris Despears
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Publication number: 20170037796Abstract: A dual fuel engine includes an engine operable on a gaseous fuel and a liquid fuel and has an electrical power generator. The dual fuel engine also includes a carburetor attached to an intake of the engine to mix air and fuel and connect to a gaseous fuel source and a liquid fuel source. A liquid fuel cut-off connects to the carburetor to selectively interrupt a flow of liquid fuel to the engine. The liquid fuel cut-off is operable in open and closed states such that the liquid fuel cut-off interrupts the flow of liquid fuel when closed. The dual fuel engine also includes controller operably connected to operate the liquid fuel cut-off in the open and closed states, and the controller may be programmed to implement a delay period upon engine startup before closing the liquid fuel cut-off.Type: ApplicationFiled: October 24, 2016Publication date: February 9, 2017Inventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison, Hiroaki Sato
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Publication number: 20170022910Abstract: A multi-fuel engine includes an engine operable on a liquid fuel and a gaseous fuel. The multi-fuel engine also includes a liquid cutoff solenoid coupled to open and close a liquid fuel path to the engine, and a gaseous cutoff solenoid coupled to open and close a gaseous fuel source to the engine. A switch couples a power source to the liquid cutoff solenoid and the gaseous cutoff solenoid to switch between fuel sources on-the-fly during engine operation.Type: ApplicationFiled: October 4, 2016Publication date: January 26, 2017Inventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Publication number: 20160363058Abstract: A mechanical fuel lockout switch for a dual fuel engine includes a mechanical fuel valve actuateable between a first position and a second position to selectively control fuel flow to the dual fuel engine from a first fuel source through a first fuel line and a second fuel source through a second fuel line. The mechanical fuel lockout switch also includes a fuel lockout apparatus coupled to the mechanical fuel valve. The mechanical fuel lockout switch communicates the first fuel source to the dual fuel engine and prevents communication between the second fuel source and the dual fuel engine when the mechanical fuel valve is in the first position, and communicates the second fuel source to the dual fuel engine and interrupts the first fuel source communication with the dual fuel engine when in the second position.Type: ApplicationFiled: June 12, 2015Publication date: December 15, 2016Inventors: Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison
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Publication number: 20160363099Abstract: A dual fuel engine includes an engine operable on a gaseous fuel and a liquid fuel and a switch to change operation of the engine between gaseous fuel and liquid fuel. The dual fuel engine also includes a carburetor attached to an intake of the engine to mix air and fuel and connect to a gaseous fuel source and a liquid fuel source. A liquid fuel cut-off attaches to the carburetor to interrupt liquid fuel upon actuation of the switch from liquid fuel to gaseous fuel.Type: ApplicationFiled: October 28, 2015Publication date: December 15, 2016Inventors: Kendall J. Collie, Mark J. Sarder, Aleko D. Sotiriades, James J. Dehn, Leigh Jenison, Hiroaki Sato
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Publication number: 20160319728Abstract: An exhaust pipe mounted heat duct in an electrical generator includes an exhaust pipe coupleable to an internal combustion engine of the electrical generator to receive exhaust therefrom, the exhaust pipe having a first support member and a second support member extending outwards from the exhaust pipe. The exhaust pipe mounted heat duct also includes a heat duct assembly comprising a first component and a second component, the first component mounted to the first support member and a second component mounted to the second support member, the first component coupled to the second component to substantially surround the exhaust pipe.Type: ApplicationFiled: May 4, 2015Publication date: November 3, 2016Inventors: Leigh Jenison, Ian Schmit, James J. Dehn, Mark J. Sarder, Jie Li, Chaoming Xu, Defeng Chen, Shujuan Wang
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Publication number: 20160233739Abstract: A generator includes a multi-chamber generator enclosure, an engine mounted within the multi-chamber generator enclosure, and an alternator driven by the engine and positioned within at least one chamber of the multi-chamber generator enclosure. The generator also includes an exhaust system operatively coupled to the engine and extending from the engine through at least the at least one chamber of the multi-chamber generator enclosure having the alternator therein, and a heat shield substantially surrounding the exhaust system in the at least one chamber of the multi-chamber enclosure generator containing the alternator.Type: ApplicationFiled: May 4, 2015Publication date: August 11, 2016Inventors: Leigh Jenison, Ian Schmit, James J. Dehn, Mark J. Sarder
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Patent number: 9322371Abstract: A system and method for engaging a slide-in mountable fuel pump assembly with a fan cover of an internal combustion engine is disclosed. The fuel pump assembly includes a fuel pump configured to pump fuel from a fuel source to the engine and a mounting bracket affixed to or formed integrally with the fuel pump and configured to slidingly engage a fan cover of the engine so as to enable selective mounting and removal of the fuel pump assembly to and from the fan cover. The mounting bracket further includes a main plate affixed to or formed integrally with the fuel pump and a track formed on each of opposing sides of the main plate, with the track configured to slidingly engage a mating feature formed on the fan cover of the engine so as to selectively mount the fuel pump assembly to the fan cover.Type: GrantFiled: April 9, 2014Date of Patent: April 26, 2016Assignee: Champion Engine Technology, LLCInventors: Mark J. Sarder, James J. Dehn
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Patent number: D771144Type: GrantFiled: May 6, 2014Date of Patent: November 8, 2016Assignee: Champion Engine Technology, LLCInventors: Russell J. Dopke, James J. Dehn
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Patent number: D789992Type: GrantFiled: March 7, 2016Date of Patent: June 20, 2017Assignee: Champion Engine Technology, LLCInventors: Russell J. Dopke, James J. Dehn