Patents by Inventor Jonathan Richard Chittenden
Jonathan Richard Chittenden 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: 11703013Abstract: An engine head gasket includes a base layer, an upper layer, and a lower layer. The base layer includes a base layer inner edge. The engine head gasket further includes an anti-preignition wrap defining a cylinder opening and wrapped around the base layer inner edge. The engine head gasket is configured with a combustion seal and selective thicknesses to direct a combustion sealing load to a cylinder block. The anti-preignition wrap shields angular corners of the base layer inner edge from a cylinder to limit preignition.Type: GrantFiled: March 3, 2022Date of Patent: July 18, 2023Assignee: Caterpillar Inc.Inventors: Thomas Randall Mcclure, Jonathan Richard Chittenden
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Patent number: 11536220Abstract: A cylinder head in a cylinder head assembly includes an upper deck, a fire deck, gas exchange conduits, and a coolant cavity extending peripherally around the gas exchange conduits. The cylinder head also includes an igniter socket having an igniter post, and a radially outward sleeve step continuously circumferential of an igniter bore center axis. A cooling moat is formed between the igniter post and the sleeve step. The coolant cavity includes a valve bridge through-channel and a valve bridge part-way channel each fluidly connected to the igniter socket to provide coolant flow into and out of the cooling moat passively.Type: GrantFiled: March 10, 2022Date of Patent: December 27, 2022Assignee: Caterpillar Inc.Inventors: Jonathan Richard Chittenden, Jeff Allen Howard, Viorel Petrariu, John W Milem
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Patent number: 11519323Abstract: A prechamber sparkplug assembly includes a sparkplug, and a sparkplug housing having a prechamber tip. The sparkplug housing includes a plug bore centered on a longitudinal axis of the sparkplug housing and receiving the sparkplug, an inside radial wall extending around the plug bore, and an outside radial wall. A cooling cavity is formed between the inside radial wall and the outside radial wall. Coolant ports extend through the outside radial wall and fluidly connect to the cooling cavity to place the cooling cavity in fluid communication with a water jacket in a cylinder head.Type: GrantFiled: September 17, 2021Date of Patent: December 6, 2022Assignee: Caterpillar Inc.Inventors: Viorel Petrariu, Jonathan Richard Chittenden, James Jay Cress
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Patent number: 11459975Abstract: A cylinder head casting in a cylinder head assembly includes a coolant cavity upper surface and a coolant cavity lower surface forming a coolant cavity. The coolant cavity lower surface is contoured to form an igniter-support prominence and cast-in coolant channels through the igniter-support prominence to feed a flow of coolant through a cooling moat extending circumferentially around an igniter post supporting an igniter sleeve. The igniter sleeve abuts the cylinder head, radially outward of the igniter post, at a first contact location and a second contact location in an alternating arrangement with a first coolant feed opening and a second coolant feed opening. Related methodology relating to making a cylinder head is also disclosed.Type: GrantFiled: July 6, 2021Date of Patent: October 4, 2022Assignee: Caterpillar Inc.Inventors: Viorel Petrariu, Jonathan Richard Chittenden
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Patent number: 11286876Abstract: A cylinder head casting in a cylinder head assembly includes a coolant cavity upper surface and a coolant cavity lower surface forming a coolant cavity. The coolant cavity lower surface is contoured to form an igniter-support prominence and cast-in coolant channels through the igniter-support prominence to feed a flow of coolant through a cooling moat extending circumferentially around an igniter post supporting an igniter sleeve. The igniter sleeve abuts the cylinder head, radially outward of the igniter post, at a first contact location and a second contact location in an alternating arrangement with a first coolant feed opening and a second coolant feed opening. Related methodology relating to making a cylinder head is also disclosed.Type: GrantFiled: July 6, 2021Date of Patent: March 29, 2022Assignee: Caterpillar Inc.Inventors: Viorel Petrariu, Jonathan Richard Chittenden, Jeff Allen Howard, John W. Milem
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Patent number: 11225933Abstract: A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.Type: GrantFiled: July 20, 2018Date of Patent: January 18, 2022Assignee: Caterpillar Inc.Inventors: Robert M. Campion, Dean Craig Diers, Sana Mahmood, Jonathan Anders, Bobby John, Jonathan Richard Chittenden
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Publication number: 20200025154Abstract: A liquid fuel injector such as for a dual fuel system in an internal combustion engine includes two-way injection control valves for controlling twin outlet checks. A first set of orifices are arranged in an A-F-Z pattern, and a second set of orifices are arranged in an A-F-Z pattern, within the fuel injector, among a high-pressure inlet passage, a low-pressure space, and first and second outlet check control chambers, respectively. A common nozzle supply cavity is fluidly connected to the high-pressure inlet passage and supplies each of two sets of nozzle outlets opened and closed by the twin outlet checks.Type: ApplicationFiled: July 20, 2018Publication date: January 23, 2020Applicant: Caterpillar Inc.Inventors: Robert M. Campion, Dean Craig Diers, Sana Mahmood, Jonathan Anders, Bobby John, Jonathan Richard Chittenden
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Patent number: 7055471Abstract: An apparatus and method for providing lubricant to a plurality of hydraulic lifters in an internal combustion engine is disclosed, in which the amount of gas bubbles present in the lubricant provided to the lifters is reduced or eliminated so that lifter noise is reduced or prevented. The apparatus, which is part of an internal combustion engine that includes valve trains with hydraulic lifters that are positioned proximate the crankcase and one another, includes a lifter feed gallery that receives lubricant from a feed passage, and communicates the lubricant to lifter feed holes. The lifter feed holes in turn communicate the lubricant to the respective hydraulic lifters. At or near the top of the lifter feed gallery proximate where the feed passage is coupled to the gallery is a single bleed orifice, which diverts gas bubbles away from the gallery and into the crankcase.Type: GrantFiled: May 28, 2002Date of Patent: June 6, 2006Assignee: Kohler Co.Inventor: Jonathan Richard Chittenden
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Publication number: 20040221827Abstract: A valve train with a hydraulic lifter in an engine, and a method of configuring a hydraulic lifter of an engine, are disclosed. The valve train includes a valve, a cam, and at least one coupling component. The valve train further includes the hydraulic lifter, which has a nominal length and is coupled at least indirectly between the valve and the cam by way of the at least one coupling component. The valve train additionally includes a mechanism for varying the nominal length of the hydraulic lifter so that the nominal length is substantially closer to a minimum length of the hydraulic lifter than to a maximum length of the hydraulic lifter.Type: ApplicationFiled: March 5, 2004Publication date: November 11, 2004Inventors: Jonathan Richard Chittenden, Jeffrey Lawrence Bracht
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Publication number: 20030221649Abstract: An apparatus and method for providing lubricant to a plurality of hydraulic lifters in an internal combustion engine is disclosed, in which the amount of gas bubbles present in the lubricant provided to the lifters is reduced or eliminated so that lifter noise is reduced or prevented. The apparatus, which is part of an internal combustion engine that includes valve trains with hydraulic lifters that are positioned proximate the crankcase and one another, includes a lifter feed gallery that receives lubricant from a feed passage, and communicates the lubricant to lifter feed holes. The lifter feed holes in turn communicate the lubricant to the respective hydraulic lifters. At or near the top of the lifter feed gallery proximate where the feed passage is coupled to the gallery is a single bleed orifice, which diverts gas bubbles away from the gallery and into the crankcase.Type: ApplicationFiled: May 28, 2002Publication date: December 4, 2003Inventor: Jonathan Richard Chittenden
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Patent number: D1024133Type: GrantFiled: June 24, 2020Date of Patent: April 23, 2024Assignee: Caterpillar Inc.Inventors: Viorel Petrariu, Jonathan Richard Chittenden, Steven Ramey