Patents by Inventor Jeffrey G. Lake
Jeffrey G. Lake 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: 10381664Abstract: An exemplary fuel cell component includes a plate having a plurality of channels. At least a first one of the channels is configured differently than others of the channels so that the first channel provides a first cooling capacity to a selected portion of the plate. The others of the channels provide a second, lesser cooling capacity to at least one other portion of the plate.Type: GrantFiled: August 30, 2012Date of Patent: August 13, 2019Assignee: AUDI AGInventors: Sushant S. Bhadange, Jeffrey G. Lake
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Patent number: 10199673Abstract: An end plate assembly (38) includes a current collector (40), an electrically non-conductive pressure plate (42), and a tapered spring plate (72). The tapered spring plate (72) includes a thick mid-section (96) and tapered, thin tie rod extensions (74, 76) that extend from the mid-section (96) over deflection cavities (50, 52) in the pressure plate (42). Tie rod nut assemblies (90, 94) apply a load follow-up through the tie-rod extensions (74, 76) to permit limited expansion and contraction of the fuel cells (32). A mid-section of (96) of the spring plate (72) overlies a substantial portion of an upper surface (46) of the pressure plate (42). Because the mid-section (96) is large and thick and because the tie-rod extensions (74,76) are tapered and thin, the entire end plate assembly (38) may be efficiently thin and apply an even load follow-up to the fuel cell stack (30).Type: GrantFiled: March 21, 2014Date of Patent: February 5, 2019Assignee: AUDI AGInventors: Christopher J. Carnevale, Jeffrey G. Lake
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Publication number: 20170098852Abstract: An end plate assembly (38) includes a current collector (40), an electrically non-conductive pressure plate (42), and a tapered spring plate (72). The tapered spring plate (72) includes a thick mid-section (96) and tapered, thin tie rod extensions (74, 76) that extend from the mid-section (96) over deflection cavities (50, 52) in the pressure plate (42). Tie rod nut assemblies (90, 94) apply a load follow-up through the tie-rod extensions (74, 76) to permit limited expansion and contraction of the fuel cells (32). A mid-section of (96) of the spring plate (72) overlies a substantial portion of an upper surface (46) of the pressure plate (42). Because the mid-section (96) is large and thick and because the tie-rod extensions (74,76) are tapered and thin, the entire end plate assembly (38) may be efficiently thin and apply an even load follow-up to the fuel cell stack (30).Type: ApplicationFiled: March 21, 2014Publication date: April 6, 2017Inventors: Christopher J. CARNEVALE, Jeffrey G. LAKE
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Patent number: 9425470Abstract: An example energy dissipation device for controlling a fuel cell fluid includes a conduit extending in longitudinal direction between a first opening and a second opening. A flow control insert is configured to be received within the conduit. The flow control insert is configured to cause a fuel cell fluid to flow helically relative to the longitudinal direction.Type: GrantFiled: May 2, 2011Date of Patent: August 23, 2016Assignee: Doosan Fuel Cell America, Inc.Inventors: Jeffrey G. Lake, Yu Guo, Xiangyang Deng, Ying Shi, Lei Yu, George S. Hirko, Vicky Zhang, Robin J. Guthrie, Sushant S. Bhadange, Andrew Joseph Melough
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Patent number: 9147895Abstract: Ejectors (22, 59) are configured to receive fresh fuel gas at the motive inlet (27, 60) and to receive fuel recycle gas at the suction inlet (29, 64, 65). Each ejector is disposed either a) within a fuel inlet/outlet manifold (13, 109) or adjacent to and integral with the fuel inlet/outlet manifold. The ejector draws fuel recycle gas directly from the fuel outlet manifold and, after mixing with fresh fuel, is expanded (34, 76) to lower the pressure and is then fed directly into the fuel inlet manifold (14, 80, 109). The ejector may be within an external manifold (13, 92) or an internal manifold (109). The ejector (59) may be formed of perforations clear through a plate (80), which is closed on either side by other plates (83, 85), or the ejector may be formed by suitable sculpture of fuel cells (12) having internal fuel inlet (109) and fuel outlet (15) manifolds.Type: GrantFiled: December 8, 2009Date of Patent: September 29, 2015Assignee: Audi AGInventors: Matthew P. Wilson, Christopher John Carnevale, Jeffrey G. Lake, Michael D. Harrington
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Publication number: 20150214560Abstract: An exemplary fuel cell component includes a plate having a plurality of channels. At least a first one of the channels is configured differently than others of the channels so that the first channel provides a first cooling capacity to a selected portion of the plate. The others of the channels provide a second, lesser cooling capacity to at least one other portion of the plate.Type: ApplicationFiled: August 30, 2012Publication date: July 30, 2015Applicant: Ballard Power Systems Inc.Inventors: Sushant S. Bhadange, Jeffrey G. Lake
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Publication number: 20140051001Abstract: An example energy dissipation device for controlling a fuel cell fluid includes a conduit extending in longitudinal direction between a first opening and a second opening. A flow control insert is configured to be received within the conduit. The flow control insert is configured to cause a fuel cell fluid to flow helically relative to the longitudinal direction.Type: ApplicationFiled: May 2, 2011Publication date: February 20, 2014Applicant: CLEAREDGE POWER CORPORATIONInventors: Jeffrey G. Lake, Yu Guo, Xiangyang Deng, Ying Shi, Lei Yu, George S. Hirko, Vicky Zhang, Robin J. Guthrie, Sushant S. Bhadange, Andrew Joseph Melough
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Publication number: 20130230789Abstract: An exemplary fuel cell assembly includes a cell stack having a plurality of cells. The cell stack has an outermost plate at each of two opposite ends of the cell stack. An end plate is adjacent the outermost plate at each of the opposite ends. A plurality of anti-rotation members at each of the opposite ends prevent relative movement between the outermost plates and the end plates. The anti-rotation members at each end are at least partially received into the end plate at the corresponding end. The anti-rotation members at each end are only partially received into the outermost plate at the corresponding end without extending through the outermost plate.Type: ApplicationFiled: November 24, 2010Publication date: September 5, 2013Applicant: UTC POWER CORPORATIONInventors: Christopher John Carnevale, Jeffrey G. Lake, Michael D. Harrington
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Patent number: 8354197Abstract: A fuel cell stack (30) includes an integrated end plate assembly having a current collector (40) secured adjacent and end cell (36) of the stack, a pressure plate (42) secured adjacent the current collector (40), and a backbone (60) secured within a backbone-support plane (44) defined within the plate (42). Tie rod ends (62, 64, 66, 68) of the backbone (60) extend over a gap (84) defined between the backbone-support plane (44) and a deflection plane (50) defined within the pressure plate (42) so that the tie rod ends deflect within the gap (84) upon tightening of tie rods (78, 80). Deflection of the backbone enables the backbone (60) to permit limited expansion of the fuel cell stack (30) during operation, and the backbone (60) has adequate flexural strength to prohibit expansion of the stack (30) beyond operating dynamic limits of the stack (30).Type: GrantFiled: December 21, 2006Date of Patent: January 15, 2013Assignee: UTC Fuel Cells, LLCInventors: Jeffrey G. Lake, Leonard A. Bach, Pedro Inigo, Evan C. Rege, Chris Vargas, Stephen P Victor
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Publication number: 20120244455Abstract: Ejectors (22, 59) are configured to receive fresh fuel gas at the motive inlet (27, 60) and to receive fuel recycle gas at the suction inlet (29, 64, 65). Each ejector is disposed either a) within a fuel inlet/outlet manifold (13, 109) or adjacent to and integral with the fuel inlet/outlet manifold. The ejector draws fuel recycle gas directly from the fuel outlet manifold and, after mixing with fresh fuel, is expanded (34, 76) to lower the pressure and is then fed directly into the fuel inlet manifold (14, 80, 109). The ejector may be within an external manifold (13, 92) or an internal manifold (109). The ejector (59) may be formed of perforations clear through a plate (80), which is closed on either side by other plates (83, 85), or the ejector may be formed by suitable sculpture of fuel cells (12) having internal fuel inlet (109) and fuel outlet (15) manifolds.Type: ApplicationFiled: December 8, 2009Publication date: September 27, 2012Inventors: Matthew P. Wilson, Christopher John Carnevale, Jeffrey G. Lake, Michael D. Harrington
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Publication number: 20120178009Abstract: A fuel cell plate includes a structure having opposing sides bounded by a periphery providing at least one edge. Gas flow channels are arranged on the one side and arranged within a perimeter that is spaced inboard from the periphery to provide a first gasket surface between the perimeter and the periphery. Inlet and outlet flow channels are arranged on the other side and extend to the periphery and are configured to provide gas at the at least one edge. Holes extend through the structure and fluidly interconnect the inlet and outlet flow channels to the gas flow channels. In one example, the fuel cell plate is a water transport plate in a fuel cell having external manifolds that supply fluid to the plate.Type: ApplicationFiled: November 9, 2009Publication date: July 12, 2012Inventors: Robert A. Love, Jeffrey G. Lake
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Publication number: 20110020722Abstract: A device for use in a fuel cell includes a bipolar plate having flow field channels, a manifold fluidly connected with the flow field channels for conveying a reactant gas, and a sump fluidly connected with the manifold.Type: ApplicationFiled: April 11, 2008Publication date: January 27, 2011Inventors: Jeffrey G. Lake, David A. Niezelski
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Publication number: 20100167156Abstract: A fuel cell stack (30) includes an integrated end plate assembly having a current collector (40) secured adjacent and end cell (36) of the stack, a pressure plate (42) secured adjacent the current collector (40), and a backbone (60) secured within a backbone-support plane (44) defined within the plate (42). Tie rod ends (62, 64, 66, 68) of the backbone (60) extend over a gap (84) defined between the backbone-support plane (44) and a deflection plane (50) defined within the pressure plate (42) so that the tie rod ends deflect within the gap (84) upon tightening of tie rods (78, 80). Deflection of the backbone enables the backbone (60) to permit limited expansion of the fuel cell stack (30) during operation, and the backbone (60) has adequate flexural strength to prohibit expansion of the stack (30) beyond operating dynamic limits of the stack (30).Type: ApplicationFiled: December 21, 2006Publication date: July 1, 2010Inventors: Jeffrey G. Lake, Leonard A. Bach, Pedro Inigo, Evan C. Rege, Chris Vargas, Stephen P. Victor
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Patent number: 7713648Abstract: A pair of reactant cover plates, e.g., fluid manifolds or protective covers (11, 12), on opposite sides of a fuel cell stack (7) are drawn to the fuel cells (14) and pressure plates (8) by tensioning lines, e.g., cables (23) or straps (23a), which may extend around structures, e.g., pins or extensions (11a, 12a; 11e, 12e) extending outwardly from the ends of the cover plates or guides (22a) on the stack, e.g., on the pressure plates in a closed loop, and are tensioned by a tensioning device, such as a turnbuckle (24).Type: GrantFiled: July 23, 2007Date of Patent: May 11, 2010Assignee: UTC Power CorporationInventors: Dale W. Petty, Cynthia M. Phillips, Jeffrey G. Lake
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Publication number: 20090029232Abstract: A pair of reactant cover plates, e.g., fluid manifolds or protective covers (11, 12), on opposite sides of a fuel cell stack (7) are drawn to the fuel cells (14) and pressure plates (8) by tensioning lines, e.g., cables (23) or straps (23a), which may extend around structures, e.g., pins or extensions (11a, 12a; 11e, 12e) extending outwardly from the ends of the cover plates or guides (22a) on the stack, e.g., on the pressure plates in a closed loop, and are tensioned by a tensioning device, such as a turnbuckle (24).Type: ApplicationFiled: July 23, 2007Publication date: January 29, 2009Inventors: Dale W. Petty, Cynthia M. Phillips, Jeffrey G. Lake
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Patent number: 7135247Abstract: A plurality of cooler plates (9) are disposed between fuel cells (8) in a stack (7) and have protrusions (12, 13) which include coolant inlet and outlet channels (15). The protrusions are surrounded by an elastomeric sealant material (35, 36) which forms a seal with the manifold structures (27, 28) to form coolant inlet and outlet manifolds (17, 20). The sealant material prevents coolant from entering fuel cells along the edges thereof, thereby preventing the fuel cells from being poisoned by the coolant. The coolant inlet and outlet manifold structures (27, 28) also define reactant gas manifolds (18, 21).Type: GrantFiled: October 23, 2003Date of Patent: November 14, 2006Assignee: UTC Fuel Cells, LLCInventors: Jeremy P. Meyers, Nileshkumar T. Dave, Jeffrey G. Lake, Mark W. Layaw
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Patent number: 6495280Abstract: A reactant gas manifold (6), to be used with a fuel cell stack (17) having a flat seal surface (16), is provided with a convex seal surface (13) so that when the manifold (6) is distorted by being bolted (20) to the fuel cell stack, the distortion will provide substantially uniform seal pressure along the length of the seal between the surfaces (13, 16).Type: GrantFiled: April 20, 2001Date of Patent: December 17, 2002Assignee: UTC Fuel Cells, LLCInventors: Aaron W. Morrow, Joseph M. Sipitkowski, Jeffrey G. Lake
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Publication number: 20020155337Abstract: A reactant gas manifold (6), to be used with a fuel cell stack (17) having a flat seal surface (16), is provided with a convex seal surface (13) so that when the manifold (6) is distorted by being bolted (20) to the fuel cell stack, the distortion will provide substantially uniform seal pressure along the length of the seal between the surfaces (13, 16).Type: ApplicationFiled: April 20, 2001Publication date: October 24, 2002Inventors: Aaron W. Morrow, Joseph M. Sipitkowski, Jeffrey G. Lake