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1. 发明公开

EP3741973A1 LOCKING ASSEMBLY FOR ROTATABLE COMPONENTS 有权
公开(公告)号：EP3741973A1
公开(公告)日：2020-11-25
申请号：EP19208988.6
申请日：2019-11-13
申请人： Hamilton Sundstrand Corporation
发明人： JIANG, Yiwei , BLEWETT, Michael R. , GOY, Edward W.
IPC分类号： F02C7/277 , F16D1/108 , F16D1/10
摘要： An assembly for a coupling together rotatable components according to an example of the present disclosure includes, among other things, a rotor shaft (142) extending along a centerline axis, the rotor shaft defining an inner bore (170) extending from an axial end of the rotor shaft, a gear (140) mounted on an outer diameter of the rotor shaft, a lock nut (164) threadedly engaged with the outer diameter of the rotor shaft such that the lock nut abuts against an axial end face of the gear, and a retainer (168) including a step portion extending from a head portion and including a projection portion (168C) extending from the step portion. The projection portion is insertable into the inner bore to bias the lock nut against the axial end face of the gear, and the step portion is dimensioned to establish an interference fit with the rotor shaft along the inner bore. A starter assembly and a method of assembly are also disclosed.

2. 发明公开

EP3489568A1 THREADED LUBE RESTRICTOR FOR LOW FLOW APPLICATIONS 有权
公开(公告)号：EP3489568A1
公开(公告)日：2019-05-29
申请号：EP18205580.6
申请日：2018-11-12
申请人： Hamilton Sundstrand Corporation
发明人： SLAYTER, Matthew , BLEWETT, Michael R.
IPC分类号： F16N27/00 , F16L55/027
摘要： A flow restrictor assembly (12) includes a threaded element (20) and a sleeve (22). The threaded element (20) defines a plurality of threads (40) that extend from a first threaded element end (34) towards a second threaded element end (36). The sleeve (22) has an inner sleeve surface (50) that engages edges of a portion of the plurality of threads (40) and extends between a first sleeve end (54) and a second sleeve end (56). A lubrication flow path (64) is defined by the portion of the plurality of threads (40) and the inner sleeve surface (50) and is arranged to create a pressure drop in a lubricant that flows through the lubrication flow path (64).

3. 发明公开

EP3845741A1 OIL RESERVOIR VENT VALVE FOR AN AIRCRAFT ENGINE 有权
公开(公告)号：EP3845741A1
公开(公告)日：2021-07-07
申请号：EP20201047.6
申请日：2020-10-09
申请人： Hamilton Sundstrand Corporation
发明人： BLEWETT, Michael R. , SLAYTER, Matthew
IPC分类号： F01D25/20 , F01M1/10 , F16N7/40 , F16N39/00
摘要： An oil reservoir assembly (10) for an engine (8) of an aircraft (6) includes a tank (12), a return passage (26), a pressurization valve (28), a first passage (32), and a vent valve (34). The tank includes a canister (14), a fill port (16), an first oil outlet (18), a second air outlet (20), and an inlet (22). The inlet is disposed in the canister and is connected to a restrictor (24). The return passage is connected to the inlet of the tank and to a scavenge pump (25). The pressurization valve is fluidly connected to the second air outlet of the tank. The first passage is connected to the pressurization valve and to an accessory gearbox (27) of the engine. The vent valve is disposed in the return passage and includes a body (36), a channel (38) extending through the body, an inlet orifice (40), and an outlet orifice (42). The inlet orifice is disposed in an end of the body. The outlet orifice is fluidly connected to the inlet orifice via the channel. A method of reducing the pressure in the oil tank (12) comprises drawing air (45) out of the oil tank through the inlet (22) upon shut-down of the engine, and venting air from the return passage (26) through the vent valve (34) into a bleed flow passage (44) connected to the accessory gearbox.

4. 发明授权

EP3219962B1 ONE DEGREE-OF-CONSTRAINT SEMI-FUSIBLE GEARBOX MOUNTING LINK 有权
公开(公告)号：EP3219962B1
公开(公告)日：2019-09-11
申请号：EP17160387.1
申请日：2017-03-10
申请人： Hamilton Sundstrand Corporation
发明人： JIANG, Yiwei , BLEWETT, Michael R.
IPC分类号： F02C7/32

5. 发明公开

EP3098480A2 GEAR SHROUD TO PASSIVELY LUBRICATE GEARBOX COMPONENT 有权
标题翻译： GETRIEBEUMMANTELUNG ZUR PASSIVEN SCHMIERUNG EINER GETRIEBEKOMPONENTE
公开(公告)号：EP3098480A2
公开(公告)日：2016-11-30
申请号：EP16171115.5
申请日：2016-05-24
申请人： Hamilton Sundstrand Corporation
发明人： SLAYTER, Matthew Allen , BLEWETT, Michael R.
IPC分类号： F16H57/04
CPC分类号： F16H57/0423 , F16H1/06 , F16H57/0471
摘要： A gearbox (20) includes at least two engaged gears (22), with at least one of the two gears provided with a shroud (26) positioned radially outwardly of the one gear (22). The shroud (26) extends between circumferential ends which do not fully surround the one gear (22). An extension (32) extends from the shroud to a component to be lubricated. A shroud (26) is also disclosed.
摘要翻译：齿轮箱（20）包括至少两个啮合齿轮（22），其中两个齿轮中的至少一个齿轮设置有位于一个齿轮（22）的径向外侧的护罩（26）。护罩（26）在不完全围绕一个齿轮（22）的周向端部之间延伸。延伸部（32）从护罩延伸到待润滑的部件。还公开了护罩（26）。

6. 发明公开

EP3628897A1 SHAFT FACE SEAL 有权
公开(公告)号：EP3628897A1
公开(公告)日：2020-04-01
申请号：EP19199522.4
申请日：2019-09-25
申请人： Hamilton Sundstrand Corporation
发明人： BLEWETT, Michael R. , JIANG, Yiwei
IPC分类号： F16J15/34 , F01D11/00
摘要： A sealing arrangement for a shaft (214) according to an example of the present disclosure includes a shaft and a sealing assembly. The sealing assembly includes a seal cartridge (302) that has at least one sealing element. The first and second mating rings (306, 308) are configured to axially locate the seal cartridge (302) with respect to the shaft. The second mating ring (308) includes at least one tang (312) that is configured to extend through at least one corresponding slot (313) in the shaft, the at least one tang (312) is configured to engage a retaining ring to axially retain the second mating ring on the shaft. A gearbox/accessory interface assembly and a method of sealing a gearbox with respect to an accessory are also disclosed.

7. 发明授权

EP3242005B1 Gearbox mounting link and method of attaching a gearbox to a gas turbine engine 有权
公开(公告)号：EP3242005B1
公开(公告)日：2018-12-12
申请号：EP17156460.2
申请日：2017-02-16
申请人： Hamilton Sundstrand Corporation
发明人： JIANG, Yiwei , BLEWETT, Michael R.
IPC分类号： F02C7/32
CPC分类号： F02C7/32 , F05D2260/30 , F05D2260/311 , F16H57/025
摘要： A mounting link (22) between a gas turbine engine and a gearbox comprises a gearbox arm (106), a fusibly breakable bolt (104), and two engine attachment brackets (102a, 102b). The gearbox arm (106) attaches to the gearbox (12), and extends along an axis defining a first dimension between the gas turbine engine structure and the gearbox. The fusibly breakable bolt (104) extends through the gearbox arm, and has a central shear section that mates with the gearbox arm (106). The engine attachment brackets(102a, 102b) have primary and secondary retention annuli, and attachment flanges that attach to the gas turbine engine structure. The primary retention annuli are each concentric to an outer section of the fusibly breakable bolt, and have a radius selected to tightly retain those outer sections in the first dimension. The secondary retention annuli are each concentric to a portion of the shear section, and have a larger radius to loosely retain the shear section.

8. 发明公开

EP3219963A1 TWO DEGREE-OF-CONSTRAINT SEMI-FUSIBLE GEARBOX MOUNTING LINK 有权
标题翻译：两级约束半熔融变速箱安装连杆
公开(公告)号：EP3219963A1
公开(公告)日：2017-09-20
申请号：EP17160733.6
申请日：2017-03-14
申请人： Hamilton Sundstrand Corporation
发明人： JIANG, Yiwei , BLEWETT, Michael R.
IPC分类号： F02C7/32 , F01D21/04
CPC分类号： F02C7/32 , F01D21/045 , F05D2230/60 , F05D2250/42 , F05D2260/30 , F05D2260/311 , F05D2260/36 , F05D2260/96 , F16H57/025
摘要： A gearbox mounting link between a gas turbine engine structure and a gearbox mounting location comprises an engine attachment piece (104) rotatably secured to the gas turbine engine structure. The engine attachment piece comprises first and second plates (114, 116) extending in parallel planes and separated by a gap. A gearbox attachment piece (106) is situated between the parallel plates and secured to the gearbox (12). A breakable primary retention fastener (110) extends snugly through the parallel plates and the gearbox attachment piece, thereby rigidly retaining the gearbox with respect to the gas turbine engine in two degrees of freedom so long as the breakable primary retention fastener remains intact. A durable secondary retention fastener (112) extending snugly through the parallel plates, and extends with clearance through the gearbox attachment piece via an oversized fastener passage, thereby constraining the gearbox attachment piece if the breakable primary retention fastener breaks.
摘要翻译：燃气涡轮发动机结构和变速箱安装位置之间的变速箱安装连杆包括可旋转地固定到燃气涡轮发动机结构的发动机连接件（104）。发动机连接件包括第一和第二板（114,116），所述第一和第二板在平行平面中延伸并且由间隙隔开。变速箱连接件（106）位于平行板之间并固定在变速箱（12）上。可破裂的主保持紧固件（110）紧贴地延伸穿过平行板和变速箱连接件，由此只要可破裂的主保持紧固件保持完好，就以两个自由度相对于燃气涡轮发动机刚性地保持变速箱。耐用的次级保持紧固件（112）紧贴地延伸穿过平行板，并且通过超大尺寸的紧固件通道以间隙的方式延伸穿过变速箱连接件，从而如果易碎的主保持紧固件断裂则约束齿轮箱连接件。

9. 发明公开

EP2592252A3 Gearbox deoiler with pre-pressuring component 有权
标题翻译：超压Getriebeentöler
公开(公告)号：EP2592252A3
公开(公告)日：2017-01-18
申请号：EP12191897.3
申请日：2012-11-08
申请人： Hamilton Sundstrand Corporation
发明人： SLAYTER, Matthew , BLEWETT, Michael R. , STOICESCU, Adrian L.
IPC分类号： F02C7/32 , F01D25/18 , F02C6/00 , B01D45/14 , F01M13/04
CPC分类号： F02C7/32 , B01D45/14 , F01D25/18 , F01M2013/0422 , F02C6/00 , F05D2260/609 , Y10T74/19991
摘要： A gearbox (12) includes an inlet (52) configured to receive a mixture of air and oil from an external source and a deoiler (40). The deoiler includes a shaft (41) including an inlet passage (97) and an outlet passage (42), both formed on an inner portion of the shaft and separated from one another, a separator unit (58) coupled to and surrounding a portion of the shaft and including an inlet (56) and an outlet, and a pre-pressuring component (90) coupled to the shaft that increases the pressure of the mixture of oil and air to form a pressurized mixture and provides the pressurized mixture to the inlet (56) of the separator unit.

10. 发明公开

EP4170147A1 AIRCRAFT FUEL SYSTEM WITH CLUTCHED AUGMENTOR PUMP 审中-实审
公开(公告)号：EP4170147A1
公开(公告)日：2023-04-26
申请号：EP22203625.3
申请日：2022-10-25
申请人： Hamilton Sundstrand Corporation
发明人： GOY, Edward W. , BLEWETT, Michael R.
IPC分类号： F02C7/22 , F02C7/236 , F02C7/32 , F02K3/105 , F02K3/11
摘要： A fuel system is disclosed for a gas turbine engine, which includes an augmentor pump having an inlet communicating with a fuel supply source and a discharge communicating with an augmentation stage of the engine, wherein the augmentor pump is connected to an accessory drive gearbox mounted to the engine, and a high speed clutch for selectively engaging and disengaging the augmentor pump and the accessory drive gearbox.

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