公开(公告)号：US20170167385A1

公开(公告)日：2017-06-15

申请号：US14963545

申请日：2015-12-09

Applicant: United Technologies Corporation

Inventor： James D. Hill ,  Steven J. Laporte ,  Wendell V. Twelves, JR. ,  Stephen K. Kramer ,  Simon Pickford

IPC: F02C7/18

CPC classification number: F02C7/141 ,  F05D2260/213 ,  Y02T50/671 ,  Y02T50/676

Abstract: A thermal energy exchange system for cooling air of a gas turbine engine includes a heat exchanger located at a diffuser of the gas turbine engine. The diffuser is positioned axially between a compressor and a combustor of the gas turbine engine. A fuel source is operably connected to the heat exchanger to direct a flow of fuel through the heat exchanger via a fuel pipe and toward a fuel nozzle of the combustor. An airflow inlet directs a cooling airflow through the heat exchanger to reduce an airflow temperature via thermal energy exchange between the cooling airflow and the flow of fuel. An airflow outlet directs the cooling airflow from the heat exchanger toward one or more of components of the turbine to cool the one or more components.

公开(公告)号：US20170159483A1

公开(公告)日：2017-06-08

申请号：US15359066

申请日：2016-11-22

Applicant: United Technologies Corporation

Inventor： Eric A. Hudson ,  Stephen K. Kramer

IPC: F01D11/22

CPC classification number: F01D11/22 ,  F01D25/246 ,  F05D2220/32 ,  F05D2240/11 ,  F05D2260/53 ,  F05D2260/56 ,  F05D2260/57 ,  F05D2270/20 ,  Y02T50/671

Abstract: An actuation system according to various embodiments can include an actuation ring having a first end and a second end separated by a gap, the actuation ring being configured to be coupled to a blade outer air seal (BOAS). The actuation system can also include an actuator coupled to at least one of the first end or the second end and configured to adjust a size of the gap such that a tip clearance between the BOAS and a blade tip is reduced in response to the size of the gap being reduced.

公开(公告)号：US20160327274A1

公开(公告)日：2016-11-10

申请号：US15105381

申请日：2014-12-19

Applicant: UNITED TECHNOLOGIES CORPORATION

Inventor： Ken F. Blaney ,  Stephen K. Kramer

IPC: F23R3/28 ,  F02C3/04 ,  F02C7/236

CPC classification number: F23R3/28 ,  F02C3/04 ,  F02C7/22 ,  F02C7/236 ,  F05D2250/25 ,  F05D2260/85 ,  F23D11/26 ,  F23K5/04 ,  F23K5/142

Abstract: A self-pumping fuel injector includes a pump and a motor for, in-part, delivering fuel to a combustor at higher fuel pressures during start-up and ramping-up conditions. Each pump may include a stationary flow interuptor that intermittently and variably supplies fuel to a rotating spindle that, in-turn, expels the fuel into a nozzle of the injector for improve fuel spray distributions.

Abstract translation: 自抽式燃料喷射器包括泵和电动机，其部分地在启动和升高状态期间以更高的燃料压力向燃烧器输送燃料。 每个泵可以包括固定的流动中继器，其间歇地且可变地向旋转的主轴供应燃料，这反过来将燃料排出到喷射器的喷嘴中，以改善燃料喷雾分布。