Patents by Inventor Ian Critchley
Ian Critchley 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: 11326781Abstract: A liner for a combustor includes a first wall and a second wall extending around at least a portion of the first wall to form a liner cavity with the first wall. The first wall defines a first wall orifice and the second wall defines a second wall orifice. The liner further includes a first insert mounted on the second wall within the second wall orifice and extending through the first wall orifice. The first insert is configured to direct a first air jet through the second wall and the first wall. The first insert is formed by a tubular body portion extending through the first wall orifice and the second wall orifice, and a shoulder extending around the body portion that abuts the first side of the second wall. The shoulder has a first diameter and the first wall orifice has a second diameter, greater than the first diameter.Type: GrantFiled: September 22, 2020Date of Patent: May 10, 2022Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Nagaraja S. Rudrapatna, Ian Critchley, Jeffrey Spencer, Philip Smalley
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Patent number: 11022308Abstract: A combustor for a turbine engine includes a first liner and a second liner forming a combustion chamber with the first liner. The combustion chamber is configured to receive an air-fuel mixture for combustion therein. The first liner is a first double wall liner with a first wall forming a portion of the combustion chamber and a second wall extending around at least a portion of the first wall to form a liner cavity with the first wall. The first wall defines a first wall orifice and the second wall defines a second wall orifice. The combustor further includes a first insert mounted on the second wall within the second wall orifice and extending through the first wall orifice. The first insert is configured to direct a first air jet through the second wall, through the first wall, and into the combustion chamber.Type: GrantFiled: May 31, 2018Date of Patent: June 1, 2021Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Nagaraja S. Rudrapatna, Ian Critchley, Jeffrey Spencer, Philip Smalley
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Publication number: 20210041104Abstract: A liner for a combustor includes a first wall and a second wall extending around at least a portion of the first wall to form a liner cavity with the first wall. The first wall defines a first wall orifice and the second wall defines a second wall orifice. The liner further includes a first insert mounted on the second wall within the second wall orifice and extending through the first wall orifice. The first insert is configured to direct a first air jet through the second wall and the first wall. The first insert is formed by a tubular body portion extending through the first wall orifice and the second wall orifice, and a shoulder extending around the body portion that abuts the first side of the second wall. The shoulder has a first diameter and the first wall orifice has a second diameter, greater than the first diameter.Type: ApplicationFiled: September 22, 2020Publication date: February 11, 2021Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Nagaraja S. Rudrapatna, Ian Critchley, Jeffrey Spencer, Philip Smalley
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Publication number: 20190368736Abstract: A combustor for a turbine engine includes a first liner and a second liner forming a combustion chamber with the first liner. The combustion chamber is configured to receive an air-fuel mixture for combustion therein. The first liner is a first double wall liner with a first wall forming a portion of the combustion chamber and a second wall extending around at least a portion of the first wall to form a liner cavity with the first wall. The first wall defines a first wall orifice and the second wall defines a second wall orifice. The combustor further includes a first insert mounted on the second wall within the second wall orifice and extending through the first wall orifice. The first insert is configured to direct a first air jet through the second wall, through the first wall, and into the combustion chamber.Type: ApplicationFiled: May 31, 2018Publication date: December 5, 2019Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Nagaraja S. Rudrapatna, Ian Critchley, Jeffrey Spencer, Philip Smalley
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Patent number: 9631814Abstract: An engine assembly includes a compressor section configured to supply compressed air and a combustion section coupled to the compressor section. The compressor section includes a diffuser with diffuser vanes to condition the compressed air, and the diffuser vanes have a vane count of a first value. The combustion section includes a combustion chamber to receive the compressed air and fuel injection assemblies configured to introduce fuel into the combustion chamber. The fuel injection assemblies have a fuel injection assembly count of a second value, and the first value is a whole number multiple of the second value.Type: GrantFiled: January 23, 2014Date of Patent: April 25, 2017Assignee: HONEYWELL INTERNATIONAL INC.Inventors: Michael T. Todd Barton, Samir Rida, Ian Critchley
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Publication number: 20140190171Abstract: A combustor for a turbine engine includes a first liner and a second liner forming a combustion chamber with the first liner. The combustion chamber is configured to receive an air-fuel mixture for combustion therein and has a longitudinal axis that defines axial, radial and circumferential directions. The first liner is a first dual walled liner having a first hot wall facing the combustion chamber and a first cold wall that forms a first liner cavity with the first hot wall. The combustor further includes a primary air admission hole defined in the first hot wall and a first fixed liner seal between the first hot wall and the first cold wall proximate to the primary air admission hole.Type: ApplicationFiled: January 10, 2013Publication date: July 10, 2014Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Ian Critchley, Stony Kujala, Eduardo Guerra
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Publication number: 20110219779Abstract: A combustion system for a gas turbine engine is provided. The system includes a forward liner; an aft liner; a combustion chamber formed by the forward liner and the aft liner, the combustion chamber defining a lean combustion zone and a pilot combustion zone; a premixing zone coupled to the combustion chamber; a pilot fuel injector coupled to the combustion chamber and configured to deliver a first flow of fuel to the pilot combustion zone; and a slinger unit configured to deliver a second flow of fuel to the premixing zone such that the second flow of fuel is mixed with air in the premixing zone and directed into the lean combustion zone of the combustion chamber.Type: ApplicationFiled: March 11, 2010Publication date: September 15, 2011Applicant: HONEYWELL INTERNATIONAL INC.Inventors: Ian Critchley, Frank Joseph Zupanc
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Publication number: 20080138835Abstract: Mutant bacterial MRS nucleic acids and proteins are provided, as well as uses for the nucleic acids and proteins, such as in a high-throughput screen for inhibitors of the mutant proteins.Type: ApplicationFiled: May 9, 2005Publication date: June 12, 2008Applicant: REPLIDYNE, INC.Inventors: Ian A. Critchley, Urs Ochsner, James M. Bullard
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Publication number: 20070234725Abstract: A rotary fuel slinger and a turbine engine including the rotary fuel source is provided. The rotary fuel slinger includes a coupler shaft coupled to a turbine shaft of the turbine engine and is configured to rotate therewith. The slinger further includes a slinger disc coupled to the coupler shaft and configured to rotate therewith. The slinger disc includes a vertical shoulder extending substantially perpendicular to the coupler shaft and a slinger disc rim extending substantially perpendicularly from the vertical shoulder. The slinger disc rim is configured to define a cup-shaped section and a counterbalance mass, wherein the cup-shaped section is counterbalanced by the counterbalance mass. The rotary fuel slinger is adapted to receive a rotational drive force and to receive a flow of fuel from a fuel source and configured, upon receipt of the rotational drive force, to centrifuge the received fuel into a combustion chamber of the turbine engine.Type: ApplicationFiled: March 29, 2006Publication date: October 11, 2007Inventors: Ian Critchley, James Hadder
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Publication number: 20060213200Abstract: The present invention provides an adaptive combustion controller and method for a turbine engine. The adaptive combustion controller and method modulates the fuel flow to the turbine engine combustor to reduce combustion instabilities. In particular, the adaptive combustion controller includes a fuel flow phase controller and a fuel flow magnitude controller. The adaptive combustion controller receives sensor data from the turbine engine. In response to the sensor data the fuel flow phase controller adjusts the phase of the modulated fuel flow to reduce instabilities in the combustor. Likewise, in response to the sensor data the fuel flow magnitude controller adjusts the magnitude of the modulated fuel flow to further reduce the instabilities in the combustor. By modulating the fuel flow to the combustor, and adaptively adjusting the phase and magnitude of the modulated fuel flow, the adaptive combustion controller is able to effectively reduce combustion instabilities.Type: ApplicationFiled: March 25, 2005Publication date: September 28, 2006Inventors: Ian Critchley, Bruce Anson, Matthew Caspermeyer, Mike Scott
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Publication number: 20050241316Abstract: A dome for a combustion chamber may have a plurality of effusion holes therein to provide efficient cooling while preventing carbon formation on the dome and chamber walls of the combustion chamber. Conventional dome cooling designs, using dome louvers, for example, may become corroded and/or may allow for ingestion of carbon particles that may build up and eventually separate from the dome. Furthermore, the dome cooling design of the present invention allows for the use of a lower profile dome as compared with conventional domes, thereby maximizing liner volume in the constrained combustion envelope while reducing combustor case weight. Additionally, the dome effusion cooling design of the present invention requires the use of less thermal barrier coating, as compared to conventional designs, in order to minimize thermal variation within the dome and between the dome and the combustor wall. A method for uniformly cooling a dome of a combustion chamber of an engine is also disclosed.Type: ApplicationFiled: April 28, 2004Publication date: November 3, 2005Applicant: Honeywell International Inc.Inventors: Ly Nguyen, Stony Kujala, David Walhood, Ian Critchley, Gregory Woodcock, Jurgen Schumacher
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Publication number: 20050204744Abstract: A variable penetration dilution jet array for a single can and scroll assembly includes a plurality of differentially sized dilution openings around the circumference of the combustor can. The alternating smaller and larger openings provide for circumferential and radial mixing uniformity with the smaller openings giving shallow penetration and the larger openings enabling deep core penetration. The larger openings provide dilution air to the hot gas flow core without the need for an increase in combustor pressure drop. The smaller openings provide a film cooling flow to the downstream scroll, reducing dedicated scroll cooling requirements.Type: ApplicationFiled: March 17, 2004Publication date: September 22, 2005Applicant: Honeywell International Inc.Inventors: Jurgen Schumacher, Ian Critchley, David Walhood
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Publication number: 20050097896Abstract: A gas turbine engine integrates the functions of an auxiliary power unit (APU) with one or more functions of an ECS, and that is capable of operating in both an unfired mode and a fired mode. The gas turbine engine includes a combustor system that is configured to allow the gas turbine to quickly transition from the unfired mode to the fired mode, by bypassing a portion of the air flowing to the combustor system around the combustor.Type: ApplicationFiled: November 10, 2003Publication date: May 12, 2005Inventors: Ian Critchley, Barry Kingery, Cristopher Frost, David Walhood, Robert Sumegi
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Publication number: 20040224981Abstract: Disclosed is a pharmaceutical composition comprising an aminoacyl tRNA synthetase inhibitor and another antibacterial agent, including another aminoacyl tRNA synthetase inhibitor.Type: ApplicationFiled: May 3, 2004Publication date: November 11, 2004Inventors: Nebojsa Janjic, Ian A. Critchley, Joseph Guiles, Theodore M. Tarasow
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Publication number: 20020172974Abstract: The present invention provides a method for screening for antimicrobial compounds using in a whole cell assay using bacteria, particularly bacteria of the genus Staphylococcus and Streptococcus.Type: ApplicationFiled: June 3, 2002Publication date: November 21, 2002Applicant: SmithKline Beecham CorporationInventors: Kenneth Coleman, Ian A. Critchley