-
公开(公告)号：US10233778B2
公开(公告)日：2019-03-19
申请号：US15173065
申请日：2016-06-03
Applicant: United Technologies Corporation
Inventor： Daniel L. Gysling , Gregory M. Savela , John M. Feiereisen , Robert J. Morris
Abstract: A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.
-
公开(公告)号：US10094420B1
公开(公告)日：2018-10-09
申请号：US15470252
申请日：2017-03-27
Applicant: United Technologies Corporation
Inventor： David B. Hudson , Gregory M. Savela , Robert J. Morris , Christopher J. Zuck , Daniel L. Gysling , Alan J. Goetschius
Abstract: A squeeze film damper includes a static member and a whirling member positioned adjacent to the static member. A gap is formed between the static member and the whirling member. A pressurized oil reservoir is formed in the gap between the static member and the whirling member. A first low pressure oil reservoir is formed in a first cavity in the whirling member, wherein the first low pressure oil reservoir is positioned on a first end of the pressurized oil reservoir. A second low pressure oil reservoir is formed in a second cavity in the whirling member, wherein the second low pressure oil reservoir is positioned on a second end of the pressurized oil reservoir. A first primary seal is positioned between the first end of the pressurized oil reservoir and the first low pressure oil reservoir, and a second primary seal is positioned between the second end of the pressurized oil reservoir and the second low pressure oil reservoir.
-
公开(公告)号：US20180038286A1
公开(公告)日：2018-02-08
申请号：US15725748
申请日：2017-10-05
Applicant: United Technologies Corporation
Inventor： William E. Rosenkrans , Robert J. Morris
Abstract: A gas turbine engine includes a fan section that has a fan with a plurality of airfoils, a compressor section, a gear train that reduces a rotational speed of the fan relative to a shaft in operation, a turbine section that has a first turbine and a second turbine, and a bypass ratio of greater than 10. The first turbine drives the shaft. A nacelle extends along an engine axis and surrounds the fan. A variable area fan nozzle defines a discharge airflow area. A fan airfoil flutter sensing system has a first sensor that actively and selectively detects a fan airfoil flutter condition in operation, and communicates with a controller programmed to move the variable area fan nozzle and vary the discharge airflow area to mitigate the flutter condition.
-
公开(公告)号：US09714584B2
公开(公告)日：2017-07-25
申请号：US14742766
申请日：2015-06-18
Applicant: United Technologies Corporation
Inventor： Robert J. Morris
IPC: F16C27/04 , F01D25/16 , F16C19/52 , F01D25/18 , F16F15/02 , F16F9/30 , F16C35/077 , F16C19/16 , F16C27/06
CPC classification number: F01D25/164 , F01D25/18 , F02C7/06 , F05D2220/32 , F05D2240/50 , F16C19/163 , F16C19/527 , F16C27/045 , F16C27/066 , F16C35/077 , F16C2360/23 , F16F9/30 , F16F15/02
Abstract: A damping treatment is applied to the ligaments of a squirrel cage type bearing support. The damping treatment reduces the vibrations transmitted to the engine casing as the engine passes through various resonance frequencies of the various parts of the gas turbine engine. A squeeze-film damper damps engine vibrations, but the oil in the squeeze-film damper can act as a stiffener during certain operational ranges, which increases the transmission of vibrations to the engine structure. Applying a damping treatment to the ligaments of the squirrel cage provides effective vibration damping.
-
公开(公告)号：US20160053617A1
公开(公告)日：2016-02-25
申请号：US14783152
申请日：2014-04-09
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Robert A. Grelotti , Robert J. Morris
Abstract: A rotor assembly for a gas turbine engine includes a rotor defining an outer periphery; and a plurality of blades attached to the outer periphery. The plurality of blades includes a material property different than the other of the plurality of blades to provide mistuning of the rotor.
Abstract translation: 用于燃气涡轮发动机的转子组件包括限定外周的转子; 以及附接到外周的多个叶片。 多个叶片包括与多个叶片中的另一个不同的材料性质，以提供转子的失谐。
-
Patent Agency Ranking
公开(公告)号：US10822999B2
公开(公告)日：2020-11-03
申请号：US16044268
申请日：2018-07-24
Applicant: UNITED TECHNOLOGIES CORPORATION
Inventor： Robert J. Morris , Gary D. Roberge
Abstract: An anti-ice arrangement for a gas turbine engine may comprise an engine static structure, a fan blade housed for rotation within the engine static structure, and a magnetic field source mounted in close proximity to the fan blade and configured for inducing eddy currents in the fan blade to increase a surface temperature of the fan blade.
-
公开(公告)号：US20190195129A1
公开(公告)日：2019-06-27
申请号：US15850611
申请日：2017-12-21
Applicant: United Technologies Corporation
Inventor： Robert J. Morris
CPC classification number: F02C7/06 , F01D25/22 , F02C3/04 , F02C7/22 , F02C7/236 , F04D29/0413 , F04D29/047 , F05D2240/53 , F16C17/024 , F16C17/042 , F16C32/0651 , F16C32/0655 , F16C33/109 , F16C33/6659 , F16C33/6681 , F16C2360/24 , F16N17/02
Abstract: A bearing assembly for an engine is disclosed. The bearing assembly includes a first structure, a second structure that is movable relative to the first structure, and a foil membrane disposed between the first structure and the second structure. The foil membrane includes at least one perforation that supplies liquid fuel in a region between the foil membrane and the second structure, where the liquid fuel is combusted by the engine.
-
公开(公告)号：US20180274588A1
公开(公告)日：2018-09-27
申请号：US15470252
申请日：2017-03-27
Applicant: United Technologies Corporation
Inventor： David B. Hudson , Gregory M. Savela , Robert J. Morris , Christopher J. Zuck , Daniel L. Gysling , Alan J. Goetschius
Abstract: A squeeze film damper includes a static member and a whirling member positioned adjacent to the static member. A gap is formed between the static member and the whirling member. A pressurized oil reservoir is formed in the gap between the static member and the whirling member. A first low pressure oil reservoir is formed in a first cavity in the whirling member, wherein the first low pressure oil reservoir is positioned on a first end of the pressurized oil reservoir. A second low pressure oil reservoir is formed in a second cavity in the whirling member, wherein the second low pressure oil reservoir is positioned on a second end of the pressurized oil reservoir. A first primary seal is positioned between the first end of the pressurized oil reservoir and the first low pressure oil reservoir, and a second primary seal is positioned between the second end of the pressurized oil reservoir and the second low pressure oil reservoir.
-
公开(公告)号：US20170350273A1
公开(公告)日：2017-12-07
申请号：US15173065
申请日：2016-06-03
Applicant: United Technologies Corporation
Inventor： Daniel L. Gysling , Gregory M. Savela , John M. Feiereisen , Robert J. Morris
CPC classification number: F01D25/164 , F02C7/06 , F05D2220/32 , F05D2240/50 , F05D2240/581 , F05D2240/60 , F05D2260/96 , F16C19/06 , F16C27/045 , F16C2360/23
Abstract: A bearing assembly is provided. The bearing assembly includes an inner race configured to couple to a shaft, an outer race disposed around the inner race, and a housing disposed around the outer race. The housing and the outer race define an annulus and a buffer region, and the buffer region defines an axial boundary of the annulus.
-
公开(公告)号：US20160369652A1
公开(公告)日：2016-12-22
申请号：US14742766
申请日：2015-06-18
Applicant: United Technologies Corporation
Inventor： Robert J. Morris
CPC classification number: F01D25/164 , F01D25/18 , F02C7/06 , F05D2220/32 , F05D2240/50 , F16C19/163 , F16C19/527 , F16C27/045 , F16C27/066 , F16C35/077 , F16C2360/23 , F16F9/30 , F16F15/02
Abstract: A damping treatment is applied to the ligaments of a squirrel cage type bearing support. The damping treatment reduces the vibrations transmitted to the engine casing as the engine passes through various resonance frequencies of the various parts of the gas turbine engine. A squeeze-film damper damps engine vibrations, but the oil in the squeeze-film damper can act as a stiffener during certain operational ranges, which increases the transmission of vibrations to the engine structure. Applying a damping treatment to the ligaments of the squirrel cage provides effective vibration damping.
Abstract translation: 对鼠笼式轴承支架的韧带施加阻尼处理。 当发动机通过燃气涡轮发动机的各个部件的各种共振频率时，阻尼处理减少了传递到发动机壳体的振动。 挤压膜阻尼器阻止发动机振动，但是挤压薄膜阻尼器中的油可以在某些操作范围内作为加强件，这增加了对发动机结构的振动传递。 对鼠笼的韧带施加阻尼处理可以提供有效的减振。
-
-
-
-
-
-
-
-
-
Search Results
31
records
(took 0.017 seconds)
