公开(公告)号：WO2014035502A2

公开(公告)日：2014-03-06

申请号：PCT/US2013/042864

申请日：2013-05-28

Applicant: WOODWARD, INC.

Inventor： KLECKLER, Joel W.

IPC: B64C11/38

CPC classification number: F02C9/58 ,  B64C11/303 ,  B64C11/385 ,  B64C11/40 ,  F05D2260/77 ,  Y02T50/671

Abstract: A propeller governor for controlling blade pitch of a variable pitch propeller has a hydraulic control circuit coupled to the propeller to change blade pitch in response to hydraulic pressure. The hydraulic control circuit has a first pressure path configured to adjust blade pitch within a first range of blade pitch, and a second, different pressure path configured to adjust blade pitch within a second range of blade pitch. An electrohydraulic servo valve of the governor is configured to adjust hydraulic pressure in the first pressure path to adjust blade pitch within the first range and to adjust hydraulic pressure in the second pressure path to adjust blade pitch within the second range.

Abstract translation: 用于控制可变螺距螺旋桨的叶片桨距的螺旋桨调速器具有联接到螺旋桨的液压控制回路，以响应于液压来改变叶片间距。 液压控制回路具有第一压力路径，其构造成在叶片间距的第一范围内调节叶片间距，以及第二不同压力路径，其构造成在叶片间距的第二范围内调节叶片间距。 调速器的电动液压伺服阀构造成调节第一压力路径中的液压压力，以将叶片间距调整到第一范围内，并且调节第二压力路径中的液压压力，以将叶片间距调整到第二范围内。

公开(公告)号：WO2019135918A1

公开(公告)日：2019-07-11

申请号：PCT/US2018/066571

申请日：2018-12-19

Applicant: WOODWARD, INC.

Inventor： KLECKLER, Joel W. ,  DAM, Bidhan

IPC: F23R3/34 ,  F23R3/28 ,  F02C7/22 ,  F02C7/26

CPC classification number: F02C7/232 ,  F02C3/06 ,  F02C7/22 ,  F02C7/222 ,  F02C7/228 ,  F02C7/26 ,  F02C9/263 ,  F02C9/36 ,  F23R3/28 ,  F23R3/34

Abstract: A gas turbine combustor assembly (200) includes: a primary combustion chamber (214) in fluid communication with a primary fuel outlet of a primary fuel injector (204); a torch igniter (212) coupled to the primary combustion chamber, the torch igniter including an auxiliary combustion chamber (220) and an auxiliary fuel injector (222) having an auxiliary fuel outlet in fluid communication with the auxiliary combustion chamber; and a fuel circuit including a first supply flowpath (246) between a fuel inlet and the primary fuel injector, a second supply flowpath (250) between the fuel inlet and the auxiliary fuel injector, and a bypass flowpath (252) between the auxiliary fuel injector and the primary fuel injector.

公开(公告)号：WO2011084941A2

公开(公告)日：2011-07-14

申请号：PCT/US2011/020088

申请日：2011-01-04

Applicant: WOODWARD, INC. ,  KLECKLER, Joel W.

Inventor： KLECKLER, Joel W.

IPC: F02C7/236 ,  F02C7/232 ,  F02C7/228

CPC classification number: F02C7/236 ,  Y02T50/671 ,  Y10T137/2605 ,  Y10T137/2635

Abstract: A dual-supply fluid distribution system includes a first pump having an inlet and an outlet. The first pump is configured to supply a first fluid flow. A second pump has an inlet and an outlet, and is configured to supply a second fluid flow. A check valve is coupled between the first and second pump outlets. The check valve is configured to combine the second fluid flow with the first fluid. A bypass valve is coupled to the outlet of the first pump. The bypass valve has an integral pilot valve and is configured to permit fluid flow from the pump outlets in excess of the fluid demand to recirculate back to the first and second pump inlets. The bypass valve and integral pilot valve are configured to cause the check valve to open when the flow of fluid through the bypass valve is below a threshold amount.

Abstract translation: 双供液流体分配系统包括具有入口和出口的第一泵。 第一泵构造成供应第一流体流。 第二泵具有入口和出口，并且构造成供应第二流体流。 止回阀联接在第一和第二泵出口之间。 止回阀构造成将第二流体流与第一流体相结合。 旁通阀联接到第一泵的出口。 旁通阀具有一体的先导阀，并且构造成允许流体从泵出口流出超过流体需求量，以再循环回第一和第二泵入口。 旁通阀和集成先导阀构造成当通过旁通阀的流体流低于阈值量时，止回阀打开。