Patents by Inventor J. Axel Glahn
J. Axel Glahn 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: 7625126Abstract: An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially shield the collecting liquid oil from interfacial shear. A multiple of apertures are located through the shield to permit oil flow through the shield and into the duct. The scavenge scoop forms a partition which separates the duct into a first portion and a second portion. The first portion processes upstream air/oil mixture that is captured by the tangential scoop while the second portion receives the oil collected in the settling area.Type: GrantFiled: April 15, 2008Date of Patent: December 1, 2009Assignee: United Technologies CorporationInventors: Robert E. Peters, Dwayne Messerschmidt, J. Axel Glahn, Kenneth L. Allard, Hslanmin F. Jen, Larry W. Spires, Roger M. Barnsby
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Patent number: 7430850Abstract: An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially shield the collecting liquid oil from interfacial shear. A multiple of apertures are located through the shield to permit oil flow through the shield and into the duct. The scavenge scoop forms a partition which separates the duct into a first portion and a second portion. The first portion processes upstream air/oil mixture that is captured by the tangential scoop while the second portion receives the oil collected in the settling area.Type: GrantFiled: October 25, 2005Date of Patent: October 7, 2008Assignee: United Technologies CorporationInventors: Robert E. Peters, Dwayne Messerschmidt, J. Axel Glahn, Kenneth L. Allard, Hslanmin F. Jen, Larry W. Spires, Roger M. Barnsby
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Publication number: 20080190091Abstract: An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially shield the collecting liquid oil from interfacial shear. A multiple of apertures are located through the shield to permit oil flow through the shield and into the duct. The scavenge scoop forms a partition which separates the duct into a first portion and a second portion. The first portion processes upstream air/oil mixture that is captured by the tangential scoop while the second portion receives the oil collected in the settling area.Type: ApplicationFiled: April 15, 2008Publication date: August 14, 2008Inventors: Robert E. Peters, Dwayne Messerschmidt, J. Axel Glahn, Kenneth L. Allard, Hslanmin F. Jen, Larry W. Splres, Roger M. Barnsby
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Patent number: 7387189Abstract: An emergency lubrication system for a turbine engine includes a reservoir 50 containing a reserve quantity of lubricant 52 and having a lubricant inlet 54 and a lubricant outlet 56. A lubricant supply line 62 and a lubricant outlet line 66 each have a respective valves 64, 68 for regulating lubricant flow into and out of the reservoir. A fluid supply line 70 includes a valve 72 for selectively establishing communication between the reserve quantity of lubricant and a source of pressurized fluid. During normal operation the lubricant outlet valve continuously releases lubricant at a normal rate to the component requiring lubrication while the lubricant inlet valve concurrently admits fresh lubricant into the reservoir. During abnormal operation, the lubricant inlet valve closes in response to abnormally low lubricant pressure outside the reservoir thereby preventing backflow of reserve lubricant out of the reservoir.Type: GrantFiled: August 14, 2003Date of Patent: June 17, 2008Assignee: United Technologies Corp.Inventors: Denman H. James, J. Axel Glahn
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Patent number: 7377110Abstract: A deoiler 26 for separating oil from air contaminated with the oil has at least one separator for separating the oil from the air and also has a source of suction for reducing air pressure at the source of the air. In an exemplary embodiment, the deoiler 26 creates the suction at a first operating condition, but acts as a restrictor at a second operating condition. A deoiling method according to the invention creates suction at a first operating condition to reduce the air pressure at the source of the oil-contaminated air, establishes a flow restriction at a second operating condition to pressurize the air source, and encourages oil to separate from the air at both operating conditions. When used as a component of a turbine engine lubrication system 22, the source of contaminated air may be a buffered bearing compartment 16.Type: GrantFiled: March 31, 2004Date of Patent: May 27, 2008Assignee: United Technologies CorporationInventors: William G. Sheridan, J. Axel Glahn, James T. Thoresen, Larry W. Spires, Yuan Dong, Sean P. McCutchan
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Patent number: 7373780Abstract: An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially shield the collecting liquid oil from interfacial shear. A multiple of apertures are located through the shield to permit oil flow through the shield and into the duct. The scavenge scoop forms a partition which separates the duct into a first portion and a second portion. The first portion processes upstream air/oil mixture that is captured by the tangential scoop while the second portion receives the oil collected in the settling area.Type: GrantFiled: October 25, 2005Date of Patent: May 20, 2008Assignee: United Technologies CorporationInventors: Robert E. Peters, Dwayne Messerschmidt, J. Axel Glahn, Kenneth L. Allard, Hsianmin F. Jen, Larry W. Spires, Roger M. Barnsby
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Patent number: 6996968Abstract: An oil scavenge system includes a tangential scavenge scoop and a settling area adjacent thereto which separately communicate with a duct which feeds oil into an oil flow path and back to an oil sump. A shield is mounted over the settling area to at least partially shield the collecting liquid oil from interfacial shear. A multiple of apertures are located through the shield to permit oil flow through the shield and into the duct. The scavenge scoop forms a partition which separates the duct into a first portion and a second portion. The first portion processes upstream air/oil mixture that is captured by the tangential scoop while the second portion receives the oil collected in the settling area.Type: GrantFiled: December 17, 2003Date of Patent: February 14, 2006Assignee: United Technologies CorporationInventors: Robert E. Peters, Dwayne Messerschmidt, J. Axel Glahn, Kenneth L. Allard, Hsianmin F. Jen, Larry W. Spires, Roger M. Barnsby
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Patent number: 6968701Abstract: The present invention relates to an engine integrated auxiliary power unit. The engine comprises a high pressure spool which includes a high pressure compressor connected to a high pressure turbine and a low pressure spool which includes a low pressure compressor connected to a low pressure turbine. The engine further has a system for independently operating the high pressure spool and thus allowing the high pressure spool to function as an auxiliary power unit.Type: GrantFiled: December 20, 2002Date of Patent: November 29, 2005Assignee: United Technologies CorporationInventors: J. Axel Glahn, Michael K. Sahm
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Publication number: 20030150206Abstract: The present invention relates to an engine integrated auxiliary power unit. The engine comprises a high pressure spool which includes a high pressure compressor connected to a high pressure turbine and a low pressure spool which includes a low pressure compressor connected to a low pressure turbine. The engine further has a system for independently operating the high pressure spool and thus allowing the high pressure spool to function as an auxiliary power unit.Type: ApplicationFiled: December 20, 2002Publication date: August 14, 2003Inventors: J. Axel Glahn, Michael K. Sahm