公开(公告)号：US20170335770A1

公开(公告)日：2017-11-23

申请号：US15160365

申请日：2016-05-20

Applicant: United Technologies Corporation

Inventor： Jorn A. Glahn ,  Denman H. James ,  Amy R. Grace

IPC: F02C7/24 ,  F02C7/06 ,  F02C3/04 ,  F02C7/32

CPC classification number: F02C7/24 ,  F01D21/12 ,  F01D21/14 ,  F01D25/18 ,  F02C3/04 ,  F02C7/06 ,  F02C7/14 ,  F02C7/224 ,  F02C7/32 ,  F05D2220/32 ,  F05D2260/213 ,  F05D2260/81 ,  F05D2260/821 ,  F05D2260/98 ,  F05D2270/112 ,  F05D2270/303 ,  F05D2270/304 ,  Y02T50/676

Abstract: According to an aspect, a method includes predicting, by a processor, a projected oil-wetted metal temperature in a lubrication system of a gas turbine engine at shutdown based on one or more thermal models prior to shutdown of the gas turbine engine. The processor determines a coking index based on the projected oil-wetted metal temperature and a coking limit threshold associated with one or more engine components. An oil coking mitigation action is triggered as a shutdown management event of the gas turbine engine based on the coking index.

公开(公告)号：US20150369128A1

公开(公告)日：2015-12-24

申请号：US14765024

申请日：2014-02-05

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Francis Parnin ,  Denman H. James ,  Larry W. Spires

IPC: F02C7/06

CPC classification number: F02C7/06 ,  F01D25/20 ,  Y02T50/671

Abstract: A disclosed lubrication pump includes a main pump stage, an auxiliary pump stage, and scavenger pump stages. The lubrication pump therefore may be driven by a common shaft of the accessory gearbox.

Abstract translation: 所公开的润滑泵包括主泵级，辅助泵级和清除泵阶段。 因此，润滑泵可以由附件齿轮箱的公共轴驱动。

公开(公告)号：US20140150439A1

公开(公告)日：2014-06-05

申请号：US13690767

申请日：2012-11-30

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Francis Parnin ,  Paul H. Dolman ,  David M. Daley ,  Denman H. James ,  Richard W. Clark

IPC: F02C7/06

CPC classification number: F02C7/06 ,  F01D25/20 ,  F05D2270/301 ,  F05D2270/304 ,  F05D2270/331 ,  F05D2270/332 ,  F05D2270/335 ,  Y02T50/671

Abstract: A lubrication system is disclosed. The lubrication system may be used in conjunction with a gas turbine engine for generating power or lift. The lubrication system utilized a flow scheduling valve which reduces lubricant flow to at least one component based on an engine load. The lubrication system may further include a main pump which may be regulated by an engine speed. Thus, a lubrication system which provides a lubricant to engine components based on the load and speed of the engine is possible. The system may improve efficiency of the engine by reducing the power previously spent in churning excess lubricant by at least one engine component as well as reducing the energy used by a lubricant cooler in cooling the excess lubricant. The lubricant cooler size may also be minimized to reduce weight and air drag due to the reduced lubricant flow.

Abstract translation: 公开了润滑系统。 润滑系统可以与用于产生动力或升力的燃气涡轮发动机结合使用。 润滑系统使用流量调节阀，其基于发动机负载减少至少一个部件的润滑剂流量。 润滑系统还可以包括可以由发动机转速调节的主泵。 因此，可以基于发动机的负载和速度向发动机部件提供润滑剂的润滑系统。 该系统可以通过减少先前由至少一个发动机部件搅拌多余的润滑剂而减少先前消耗的功率并且降低润滑剂冷却器在冷却多余润滑剂时使用的能量来提高发动机的效率。 润滑剂冷却器尺寸也可以最小化，以减少润滑剂流动导致的重量和空气阻力。

公开(公告)号：US20140090930A1

公开(公告)日：2014-04-03

申请号：US13630205

申请日：2012-09-28

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Denman H. James

IPC: F01D25/20

CPC classification number: F01D25/20 ,  F05D2260/98

Abstract: A lubrication system for use with a gas turbine engine includes a first reservoir for containing a lubricant. The first reservoir includes a first discharge passage through which the lubricant is flowable in a first direction. A second reservoir contains the lubricant. The second reservoir includes a second discharge passage through which the lubricant is flowable in a second direction. The first direction is generally opposite to the second direction. A first pump pumps the lubricant from the first reservoir. A second pump pumps the lubricant from the second reservoir. A manifold distributes the lubricant to a component. The lubricant from the first pump and the second pump flows into the manifold and exits the manifold through a manifold discharge.

Abstract translation: 用于燃气涡轮发动机的润滑系统包括用于容纳润滑剂的第一储存器。 第一储存器包括第一排出通道，润滑剂通过第一排出通道沿第一方向流动。 第二个储存器包含润滑剂。 第二储存器包括第二排出通道，润滑剂通过第二排出通道沿第二方向流动。 第一方向通常与第二方向相反。 第一泵从第一储存器泵出润滑剂。 第二泵从第二储存器泵送润滑剂。 歧管将润滑剂分配到组件。 来自第一泵和第二泵的润滑剂流入歧管并通过歧管排放口离开歧管。