Patents by Inventor John Jerl Purcell
John Jerl Purcell 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: 9845767Abstract: Systems and methods are provided for a cylinder block having one or more bulkheads. The bulkheads provide a dual-wall structure that may enhance the stiffness of the cylinder block in bending and torsion. The bulkheads may also provide an oil drain to allow oil to directly drain through a hollow core of the bulkhead. An overflow outlet may be formed in an inner wall of a bulkhead. In some implementations, a cylinder block with bulkheads may increase an oil capacity of an engine.Type: GrantFiled: November 26, 2013Date of Patent: December 19, 2017Assignee: Cummins IP, Inc.Inventors: Aaron S. Quinton, John Jerl Purcell, Nathaniel Hassall, Derek Ferguson
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Patent number: 9810115Abstract: An engine block, an engine sub-assembly, and method for providing and manufacturing an engine block. The engine block includes a plurality of cylinder barrels positioned in the engine block, at least one oil jacket channel formed in the engine block, and an oil inlet port positioned in a peripheral wall of the engine block and connected to the at least one oil jacket channel. The at least one oil jacket channel includes a plurality of curved channel sections. Each curved channel section in the plurality of curved channel sections extends about at least a portion of a circumferential portion of a respective cylinder barrel in the plurality of cylinder barrels. The at least one oil jacket channel extends between adjacent cylinder barrels of the plurality of cylinder barrels in the engine block.Type: GrantFiled: November 25, 2013Date of Patent: November 7, 2017Assignee: Cummins, Inc.Inventors: Aaron S. Quinton, John Jerl Purcell, III, Nathaniel P. Hassall
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Publication number: 20150315996Abstract: Systems and methods are provided for a cylinder block having one or more bulkheads. The bulkheads provide a dual-wall structure that may enhance the stiffness of the cylinder block in bending and torsion. The bulkheads may also provide an oil drain to allow oil to directly drain through a hollow core of the bulkhead. An overflow outlet may be formed in an inner wall of a bulkhead. In some implementations, a cylinder block with bulkheads may increase an oil capacity of an engine.Type: ApplicationFiled: November 26, 2013Publication date: November 5, 2015Applicant: Cummins IP, Inc.Inventors: Aaron S. Quinton, John Jerl Purcell, Nathaniel Hassall, Derek Ferguson
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Publication number: 20150315994Abstract: An engine block assembly and method manufacturing an engine block assembly and related components. A casted engine block assembly includes a cylinder block portion. The cylinder block portion includes a plurality of cylinder block openings disposed therein, a cylinder block flange portion positioned at a top of the cylinder block portion and a cylinder block crankcase portion disposed at a base of the cylinder block. The cylinder block flange portion is configured for coupling the cylinder block to a cylinder head. The cylinder block portion includes a plurality of cylinder block walls extending between the cylinder block flange portion and the cylinder block crankcase portion and positioned about the plurality of cylinder block openings. The cylinder block walls house a plurality of internal channels. The plurality of cylinder block walls are void of enclosed openings extending through at least one of the cylinder block walls in the plurality of cylinder block walls.Type: ApplicationFiled: November 26, 2013Publication date: November 5, 2015Inventors: Aaron S. QUINTON, John Jerl Purcell, Nathaniel P. Hassall
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Publication number: 20150300221Abstract: An engine block, an engine sub-assembly, and method for providing and manufacturing an engine block. The engine block includes a plurality of cylinder barrels positioned in the engine block, at least one oil jacket channel formed in the engine block, and an oil inlet port positioned in a peripheral wall of the engine block and connected to the at least one oil jacket channel. The at least one oil jacket channel includes a plurality of curved channel sections. Each curved channel section in the plurality of curved channel sections extends about at least a portion of a circumferential portion of a respective cylinder barrel in the plurality of cylinder barrels. The at least one oil jacket channel extends between adjacent cylinder barrels of the plurality of cylinder barrels in the engine block.Type: ApplicationFiled: November 25, 2013Publication date: October 22, 2015Applicant: Cummins Inc.Inventors: Aaron S. Quinton, John Jerl Purcell, Nathaniel P. Hassall
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Publication number: 20150292389Abstract: An engine assembly and method of distributing coolant in an engine assembly. A cylinder block includes one or more pairs of cylinder block openings disposed therein. Each pair of cylinder block openings include two cylinder block openings, each configured to house a piston. A cylinder head in fluid communication with the one or more pairs of cylinder block openings. A coolant manifold includes coolant flow passages, each in fluid communication with a coolant flow inlet disposed in the cylinder block between the two cylinder block openings in each pair of cylinder block openings. Fluid from each coolant flow inlet diverges into two coolant flow passages, each extending about a peripheral portion of a respective cylinder block opening. Each coolant flow passage extends from the peripheral portion of the respective cylinder block opening into one or more outlets from the engine block and into the cylinder head.Type: ApplicationFiled: November 26, 2013Publication date: October 15, 2015Inventors: Mathew Clark, Nathaniel P. Hassall, John Jerl Purcell
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Patent number: 6752117Abstract: A balancer shaft assembly for an engine comprises a housing mountable on the engine block, and rotatably supporting at least one balancer shaft (16,18; 16′,18′) connectable for rotation with the engine crankshaft. The housing is formed in two parts (12,14; 12′,14′) and defines pillar blocks (30) for journalling the or each balancer shaft (16,18; 16′,18′). A groove (28; 28′) is formed in the split plane of at least one of the two mating parts (12; 12′) of the housing, which groove (28; 28′) when the parts (12,14; 12′,14′) are mated to one another defines an oil gallery by way of which lubricant is supplied to the pillar blocks (30) supporting the or each balancer shaft (16,18; 16′,18′).Type: GrantFiled: July 26, 2002Date of Patent: June 22, 2004Assignees: Cummins Engine Company, Ltd., Iveco (UK) Ltd., New Holland UK, Ltd.Inventors: John Jerl Purcell, Richard Kettle, Chris Swaby
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Patent number: 6655326Abstract: An engine having an electronic engine control unit (ECU) is provided with a temperature management system for the ECU to prevent failure of the ECU through overheating. The temperature management system comprising means for monitoring or evaluating the temperature of the ECU to determine when the temperature of the ECU is approaching a predetermined limit and means for limiting further heating of the ECU to prevent the said limit from being exceeded.Type: GrantFiled: December 21, 2000Date of Patent: December 2, 2003Assignees: Cummins Engine Company, Ltd., Iveco (UK) Ltd., New Holland UK, Ltd.Inventors: John Jerl Purcell, Paul Sowerby, Edward P. Hodzen, Eric B. Andrews
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Publication number: 20030106518Abstract: A balancer shaft assembly for an engine comprises a housing mountable on the engine block, and rotatably supporting at least one balancer shaft (16,18; 16′,18′) connectable for rotation with the engine crankshaft. The housing is formed in two parts (12,14; 12′,14′) and defines pillar blocks (30) for journalling the or each balancer shaft (16,18; 16′,18′). A groove (28; 28′) is formed in the split plane of at least one of the two mating parts (12; 12′) of the housing, which groove (28; 28′) when the parts (12,14; 12′,14′) are mated to one another defines an oil gallery by way of which lubricant is supplied to the pillar blocks (30) supporting the or each balancer shaft (16,18; 16′,18′).Type: ApplicationFiled: July 26, 2002Publication date: June 12, 2003Inventors: John Jerl Purcell, Richard Kettle, Chris Swaby
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Patent number: 6305353Abstract: An apparatus for sensing engine speed and engine angular position. A tone wheel with a plurality of reference indicators and a position indicator is mounted to a camshaft gear. The reference and position indicators rotate past a Hall Effect sensor which generates a sensor signal suitable for use by a controller for determination of engine speed and engine angular position. Other embodiments do not include a controller.Type: GrantFiled: August 18, 2000Date of Patent: October 23, 2001Assignee: Cummins Engine CompanyInventors: Gregory A. Weber, G. Steven Antcliff, John Jerl Purcell, III
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Publication number: 20010015181Abstract: An engine having an electronic engine control unit (ECU) is provided with a temperature management system for the ECU to prevent failure of the ECU through overheating. The temperature management system comprising means for monitoring or evaluating the temperature of the ECU to determine when the temperature of the ECU is approaching a predetermined limit and means for limiting further heating of the ECU to prevent the said limit from being exceeded.Type: ApplicationFiled: December 21, 2000Publication date: August 23, 2001Inventors: John Jerl Purcell, Paul Sowerby, Edward P. Hodzen, Eric B. Andrews
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Patent number: 6131547Abstract: An apparatus for sensing engine speed and engine angular position. A tone wheel with a plurality of reference indicators and a position indicator is mounted to a camshaft gear. The reference and position indicators rotate past a Hall effect sensor which generates a sensor signal suitable for use by a controller for determination of engine speed and engine angular position.Type: GrantFiled: February 27, 1998Date of Patent: October 17, 2000Assignee: Cummins Engine Company, Inc.Inventors: Gregory A. Weber, G. Steven Antcliff, John Jerl Purcell, III
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Patent number: 5735242Abstract: A compression braking system is provided which permits an engine's exhaust valves to be operated by fuel pressure during a braking mode independently of the engine's mechanical actuating elements and associated control limitations. The present braking system includes a high pressure fuel supply including a high pressure fuel accumulating device for accumulating and temporarily storing high pressure fuel and an actuator device including an actuator piston operatively connected to the engine exhaust valve and a brake actuating valve for controlling fuel flow from the accumulating device to the actuator piston. The pressure of the fuel acting on the actuator causes movement of the exhaust valve. The system may include a pressure regulator for decreasing the accumulator fuel pressure to a more appropriate actuation fuel pressure to minimize high pressure joints and leakage. A improved sealing means may be provided for preventing leakage around the actuator piston.Type: GrantFiled: April 17, 1996Date of Patent: April 7, 1998Assignee: Cummins Engine Company, Inc.Inventors: Jim Kahlenbeck, John Jerl Purcell
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Patent number: 5671707Abstract: A rocker lever assembly including lubricant directing structure is provided for an internal combustion engine drive train. A lubricant deflecting shroud is secured to a joint-contacting end of a rocker lever above open lubricant channels to direct lubricant to an adjacent drive train joint and minimize airborne lubricant.Type: GrantFiled: February 28, 1996Date of Patent: September 30, 1997Assignee: Cummins Engine Company, Inc.Inventors: John Jerl Purcell, Cynthia I. Mandt, Francis M. Hager
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Patent number: D701885Type: GrantFiled: November 29, 2012Date of Patent: April 1, 2014Assignee: Cummins Inc.Inventors: Matthew A. Clark, Aaron S. Quinton, John Jerl Purcell, III
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Patent number: D702260Type: GrantFiled: November 29, 2012Date of Patent: April 8, 2014Assignee: Cummins Inc.Inventors: Nathaniel P. Hassall, Aaron S. Quinton, John Jerl Purcell, III