Patents by Inventor Martin Poulin
Martin Poulin 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: 11319836Abstract: An assembly for a gas turbine engine having: static and rotating components; a seal between the static and rotating components, and between a cavity and an environment outside thereof, the cavity having an inlet fluidly connectable to a source of lubricant and an outlet fluidly connectable to a scavenge pump for drawing lubricant out of the cavity; and a drain conduit having a drain inlet outside the cavity in proximity to the seal for receiving leaked lubricant, and a drain outlet fluidly connected to the outlet of the cavity, the drain outlet located in proximity to a scavenge inlet via which the lubricant exits the cavity to flow toward the scavenge pump such that, in use, a lubricant flow within the drain conduit is entrained by the lubricant exiting the cavity via the scavenge inlet.Type: GrantFiled: August 14, 2019Date of Patent: May 3, 2022Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Martin Poulin, Sean Powers
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Patent number: 11209045Abstract: A journal bearing assembly for rotatably supporting at least one gear, comprising a pin and a journal shaft. The journal shaft includes an inner cavity receiving the pin and an outer surface including a plurality of contact surfaces supporting the at least one gear and at least one annular groove separating adjacent contact surfaces. The pin is configured to support the journal shaft at a support position in the inner cavity.Type: GrantFiled: February 27, 2020Date of Patent: December 28, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Louis Brillon, Martin Poulin
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Publication number: 20210254659Abstract: A journal bearing assembly for rotatably supporting at least one gear, comprising a pin and a journal shaft. The journal shaft includes an inner cavity receiving the pin and an outer surface including a plurality of contact surfaces supporting the at least one gear and at least one annular groove separating adjacent contact surfaces. The pin is configured to support the journal shaft at a support position in the inner cavity.Type: ApplicationFiled: February 27, 2020Publication date: August 19, 2021Inventors: Louis BRILLON, Martin POULIN
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Patent number: 11092082Abstract: An engine includes first and second power inputs, and a power output. A transmission includes an epicyclic gear train engaged with the first power input and selectively engageable with the power output. The gear train has a sun gear centrally disposed and defining a center axis of the gear train, a ring gear, and planet gears mounted to a carrier. The planet gears are rotatable about respective planet gear axes. The planet gears are disposed in meshed engagement with the sun gear and the ring gear. A brake engageable in a first position with one of the sun gear, the carrier, and the ring gear slows a rotation thereof to transfer power from the first power input to the power output. The brake in a second position is disengageable from the sun gear, the carrier or the ring gear to decouple the first power input from the power output.Type: GrantFiled: August 29, 2018Date of Patent: August 17, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Roberto Brito, Martin Poulin
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Patent number: 11041443Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis extending through an accessory gear box (AGB). The LP spool has an LP compressor, which is axially positioned between the HP compressor of the HP spool and the AGB. A tower shaft drivingly connects the HP spool to the AGB.Type: GrantFiled: September 26, 2019Date of Patent: June 22, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Eric Durocher, Keith Morgan, Lazar Mitrovic, Jean Dubreuil, Martin Poulin
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Patent number: 11015522Abstract: A gearbox for an aircraft engine including first and second gears in driving engagement through planet gears supported by a carrier. Selective application of a brake and a blocking member permit operation in a speed change configuration and a direct drive configuration.Type: GrantFiled: September 27, 2018Date of Patent: May 25, 2021Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Martin Poulin
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Publication number: 20210047941Abstract: An assembly for a gas turbine engine having: static and rotating components; a seal between the static and rotating components, and between a cavity and an environment outside thereof, the cavity having an inlet fluidly connectable to a source of lubricant and an outlet fluidly connectable to a scavenge pump for drawing lubricant out of the cavity; and a drain conduit having a drain inlet outside the cavity in proximity to the seal for receiving leaked lubricant, and a drain outlet fluidly connected to the outlet of the cavity, the drain outlet located in proximity to a scavenge inlet via which the lubricant exits the cavity to flow toward the scavenge pump such that, in use, a lubricant flow within the drain conduit is entrained by the lubricant exiting the cavity via the scavenge inlet.Type: ApplicationFiled: August 14, 2019Publication date: February 18, 2021Inventors: Martin POULIN, Sean POWERS
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Patent number: 10746188Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool. The LP spool has an LP shaft for transferring a torque from an LP turbine to an LP compressor. The HP spool has an HP shaft for transferring a torque from an HP turbine to an HP compressor. The LP shaft is coaxially mounted inside the HP shaft. An inter-shaft bearing is mounted radially between the LP shaft and the HP shaft. The inter-shaft bearing is disposed axially between the HP compressor and the LP compressor.Type: GrantFiled: April 10, 2017Date of Patent: August 18, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Ian A. MacFarlane, Sean Powers, Martin Poulin, Jean-Jacques Forest
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Patent number: 10738709Abstract: A gas turbine engine has a LP spool including an LP shaft and a HP spool including an HP shaft, an accessory gear box (AGB) drivingly engaged to a plurality of accessories, an engine starter drivingly engaged to the AGB, and a drive shaft drivingly engaged to the AGB. In a first engine mode, the drive shaft is drivingly engaged to the HP shaft and is disengaged from the LP shaft, the engine starter is in driving engagement with the HP shaft via the drive shaft, and the LP shaft is disengaged from the AGB. In a second engine mode, the drive shaft is drivingly engaged to the LP shaft and is disengaged from the HP shaft, the LP shaft is in driving engagement with the AGB via the drive shaft, and the HP shaft is disengaged from the AGB.Type: GrantFiled: February 9, 2017Date of Patent: August 11, 2020Assignee: PRATT & WHITNEY CANADA CORP.Inventors: Jean-Jacques Forest, Martin Poulin
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Publication number: 20200095942Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis extending through an accessory gear box (AGB). The LP spool has an LP compressor, which is axially positioned between the HP compressor of the HP spool and the AGB. A tower shaft drivingly connects the HP spool to the AGB.Type: ApplicationFiled: September 26, 2019Publication date: March 26, 2020Inventors: Eric DUROCHER, Keith MORGAN, Lazar MITROVIC, Jean DUBREUIL, Martin POULIN
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Publication number: 20200072322Abstract: An engine includes first and second power inputs, and a power output. A transmission includes an epicyclic gear train engaged with the first power input and selectively engageable with the power output. The gear train has a sun gear centrally disposed and defining a center axis of the gear train, a ring gear, and planet gears mounted to a carrier. The planet gears are rotatable about respective planet gear axes. The planet gears are disposed in meshed engagement with the sun gear and the ring gear. A brake engageable in a first position with one of the sun gear, the carrier, and the ring gear slows a rotation thereof to transfer power from the first power input to the power output. The brake in a second position is disengageable from the sun gear, the carrier or the ring gear to decouple the first power input from the power output.Type: ApplicationFiled: August 29, 2018Publication date: March 5, 2020Inventors: Roberto BRITO, Martin POULIN
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Patent number: 10465611Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis extending through an accessory gear box (AGB). The LP spool has an LP compressor, which is axially positioned between the HP compressor of the HP spool and the AGB. A tower shaft drivingly connects the HP spool to the AGB.Type: GrantFiled: November 15, 2016Date of Patent: November 5, 2019Assignee: Pratt & Whitney Canada Corp.Inventors: Eric Durocher, Keith Morgan, Lazar Mitrovic, Jean Dubreuil, Martin Poulin
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Publication number: 20190024582Abstract: A gearbox for an aircraft engine including first and second gears in driving engagement through planet gears supported by a carrier. Selective application of a brake and a blocking member permit operation in a speed change configuration and a direct drive configuration.Type: ApplicationFiled: September 27, 2018Publication date: January 24, 2019Inventor: Martin POULIN
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Patent number: 10113482Abstract: A gearbox for an aircraft engine including first and second gears in driving engagement through planet gears supported by a carrier. Selective application of a brake and a blocking member permit operation in a speed change configuration and a direct drive configuration.Type: GrantFiled: November 15, 2016Date of Patent: October 30, 2018Assignee: PRATT & WHITNEY CANADA CORP.Inventor: Martin Poulin
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Publication number: 20180266429Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool. The LP spool has an LP shaft for transferring a torque from an LP turbine to an LP compressor. The HP spool has an HP shaft for transferring a torque from an HP turbine to an HP compressor. The LP shaft is coaxially mounted inside the HP shaft. An inter-shaft bearing is mounted radially between the LP shaft and the HP shaft. The inter-shaft bearing is disposed axially between the HP compressor and the LP compressor.Type: ApplicationFiled: April 10, 2017Publication date: September 20, 2018Inventors: Ian A. MACFARLANE, Sean POWERS, Martin POULIN, Jean-Jacques FOREST
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Publication number: 20180223740Abstract: A gas turbine engine has a LP spool including an LP shaft and a HP spool including an HP shaft, an accessory gear box (AGB) drivingly engaged to a plurality of accessories, an engine starter drivingly engaged to the AGB, and a drive shaft drivingly engaged to the AGB. In a first engine mode, the drive shaft is drivingly engaged to the HP shaft and is disengaged from the LP shaft, the engine starter is in driving engagement with the HP shaft via the drive shaft, and the LP shaft is disengaged from the AGB. In a second engine mode, the drive shaft is drivingly engaged to the LP shaft and is disengaged from the HP shaft, the LP shaft is in driving engagement with the AGB via the drive shaft, and the HP shaft is disengaged from the AGB.Type: ApplicationFiled: February 9, 2017Publication date: August 9, 2018Inventors: Jean-Jacques FOREST, Martin POULIN
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Publication number: 20180135512Abstract: A gearbox for an aircraft engine including first and second gears in driving engagement through planet gears supported by a carrier. Selective application of a brake and a blocking member permit operation in a speed change configuration and a direct drive configuration.Type: ApplicationFiled: November 15, 2016Publication date: May 17, 2018Inventor: Martin POULIN
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Publication number: 20180073438Abstract: A multi-spool gas turbine engine comprises a low pressure (LP) spool and a high pressure (HP) spool independently rotatable about a central axis extending through an accessory gear box (AGB). The LP spool has an LP compressor, which is axially positioned between the HP compressor of the HP spool and the AGB. A tower shaft drivingly connects the HP spool to the AGB.Type: ApplicationFiled: November 15, 2016Publication date: March 15, 2018Inventors: Eric DUROCHER, Keith MORGAN, Lazar MITROVIC, Jean DUBREUIL, Martin POULIN
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Patent number: 9770655Abstract: Embodiments of the present invention provide techniques for establishing and reestablishing associations between users of game devices. In one embodiment, information about an association between a user of a first game device and a user of a second game device is stored in the nonvolatile memories of first and second game media, the first and second game media being communicatively coupled with the first and second game devices respectively. If the first game device loses track of the association (e.g., the user of the first game devices swaps out the first game medium for another one, or the memory resident on the first game medium is corrupted/erased), an association notification received at the first game device from the second game device may be used to reestablish the association at the first game device. In this manner, previously established associations between users of game devices may be automatically established/reestablished.Type: GrantFiled: April 10, 2008Date of Patent: September 26, 2017Assignee: Disney Enterprises, Inc.Inventors: Jeffrey Gosztyla, Martin Poulin, Daren Smith, Mark McArthur
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Publication number: 20090088259Abstract: Embodiments of the present invention provide techniques for establishing and reestablishing associations between users of game devices. In one embodiment, information about an association between a user of a first game device and a user of a second game device is stored in the nonvolatile memories of first and second game media, the first and second game media being communicatively coupled with the first and second game devices respectively. If the first game device loses track of the association (e.g., the user of the first game devices swaps out the first game medium for another one, or the memory resident on the first game medium is corrupted/erased), an association notification received at the first game device from the second game device may be used to reestablish the association at the first game device. In this manner, previously established associations between users of game devices may be automatically established/reestablished.Type: ApplicationFiled: April 10, 2008Publication date: April 2, 2009Applicant: Disney Enterprises, Inc.Inventors: Jeffrey Gosztyla, Martin Poulin, Daren Smith, Mark McArthur