公开(公告)号：US20180237125A1

公开(公告)日：2018-08-23

申请号：US15446262

申请日：2017-03-01

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Carmine LISIO ,  Kenneth MATHESON

IPC: B64C19/02 ,  B64D27/10 ,  B64C11/30 ,  B64D31/06

CPC classification number: B64D31/06 ,  B64C11/30 ,  B64C11/303 ,  B64D27/10 ,  F02C9/58 ,  F05D2220/325 ,  F05D2270/051 ,  F05D2270/122

Abstract: There are described methods and systems for providing an autothrottle mode in a propeller-driven aircraft. A thrust change is obtained corresponding to a difference between an actual thrust and a desired thrust for an engine. When greater than a pre-determined threshold, a setting change to one or more control input(s) of the engine is determined. One or more commands is output to cause the setting change of the control input(s).

公开(公告)号：US20200049027A1

公开(公告)日：2020-02-13

申请号：US16655424

申请日：2019-10-17

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Brant DUKE ,  Kenneth MATHESON

IPC: F01D21/00 ,  B64C11/32 ,  B64F5/60 ,  F01D7/00 ,  B64C11/30 ,  B64C11/06 ,  B64C11/38

Abstract: There is described herein methods and systems for testing a propeller feathering function. The method comprises monitoring a rotational speed over time of propeller blades of an aircraft, commanding an angle change of the propeller blades, comparing a post-angle change rotational speed of the propeller blades to an expected rotational speed without the commanded angle change and obtaining, by the processor, a rotational speed difference, and issuing a test passed signal when the rotational speed difference exceeds a threshold and a test failed signal when the rotational speed difference does not exceed the threshold.

公开(公告)号：US20160333730A1

公开(公告)日：2016-11-17

申请号：US14712985

申请日：2015-05-15

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Brant DUKE ,  Kenneth MATHESON

IPC: F01D21/00

CPC classification number: F01D21/003 ,  B64C11/06 ,  B64C11/30 ,  B64C11/325 ,  B64C11/385 ,  B64F5/60 ,  F01D7/00 ,  F01D21/00 ,  F01D21/02 ,  Y02T50/673

Abstract: There is described herein the automation of propeller feather testing functions, whereby the test is automatically performed and a pass/fail signal is issued upon completion.

Abstract translation: 这里描述了螺旋桨羽毛测试功能的自动化，由此自动执行测试并且在完成时发出通过/失败信号。

公开(公告)号：US20220243609A1

公开(公告)日：2022-08-04

申请号：US17680801

申请日：2022-02-25

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： Brant DUKE ,  Kenneth MATHESON

IPC: F01D21/00 ,  B64C11/38 ,  B64C11/06 ,  B64C11/30 ,  F01D7/00 ,  B64F5/60 ,  B64C11/32

Abstract: There is described herein the automation of propeller feather testing functions, whereby the test is automatically performed and a pass/fail signal is issued upon completion.

公开(公告)号：US20210102504A1

公开(公告)日：2021-04-08

申请号：US16713226

申请日：2019-12-13

Applicant: PRATT & WHITNEY CANADA CORP.

Inventor： James Robert JARVO ,  Kenneth MATHESON ,  Mario GUERRA

IPC: F02C9/58 ,  B64D31/04 ,  B64D31/06 ,  B64D27/10 ,  B64C11/44

Abstract: Methods and system are described for operating an aircraft powerplant comprising an engine coupled to a variable-pitch propeller. The method comprises receiving a request to change a propeller rotational speed from a first setting to a second setting, determining a power need for the engine, when the power need corresponds to the second setting, modifying a command for at least one of fuel flow to the engine and oil flow to the propeller to govern the powerplant in accordance with the second setting for the propeller rotational speed, and when the power need does not correspond to the second setting, overriding the request to change the propeller rotational speed from the first setting to the second setting.