公开(公告)号：US20150259064A1

公开(公告)日：2015-09-17

申请号：US14684922

申请日：2015-04-13

Applicant: Bell Helicopter Textron Inc.

Inventor： Carl T. Elving ,  James E. Sobel ,  Michael Pujol

IPC: B64C27/12 ,  B60T15/02

CPC classification number: B64C27/12 ,  B60T15/02

Abstract: In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure.

公开(公告)号：US10239610B2

公开(公告)日：2019-03-26

申请号：US15062375

申请日：2016-03-07

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos A. Fenny ,  Carl T. Elving ,  Rodney M. Cahoon ,  Charles Eric Covington

IPC: B64C27/64 ,  B64C27/605 ,  F15B15/14

Abstract: In some embodiments, an actuator includes a chamber, a piston disposed within the chamber, and a tube. The chamber has a first port and a second port. The piston comprises a first surface, a second surface, and an elongated conduit coupling the first surface to the second surface. The first surface is disposed between the first port and the second port. The second surface is offset from the first surface. The tube is disposed at least partially within the elongated conduit of the piston. The tube comprises a third port disposed within the elongated conduit of the piston and a fourth port disposed outside of the elongated conduit of the piston.

公开(公告)号：US20150084403A1

公开(公告)日：2015-03-26

申请号：US14036760

申请日：2013-09-25

Applicant: Bell Helicopter Textron Inc.

Inventor： Carl T. Elving ,  James E. Sobel ,  Michael Pujol

IPC: B60T15/02

CPC classification number: B64C27/12 ,  B60T15/02

Abstract: In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure.

Abstract translation: 在一些方面，用于垂直提升飞行器的主缸组件被配置成响应于输入杆的应用运动而使加压流体通过导管移动。 低压安全阀可以连接到第一管道，以将压力限制在低水平。 隔离阀可以连接到第一管道并且被配置为在接合时将低压安全阀与管道隔离。 高压安全阀可以连接到第二流体管道，以将压力限制在高水平。 在一些方面，转子制动器致动器流体地连接到第一管道和第二管道，并被配置为响应于液压流体压力接合转子制动器。

公开(公告)号：US09676478B2

公开(公告)日：2017-06-13

申请号：US14684922

申请日：2015-04-13

Applicant: Bell Helicopter Textron Inc.

Inventor： Carl T. Elving ,  James E. Sobel ,  Michael Pujol

IPC: B64C27/12 ,  B60T15/02

CPC classification number: B64C27/12 ,  B60T15/02

Abstract: In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure.

公开(公告)号：US20160264239A1

公开(公告)日：2016-09-15

申请号：US15062375

申请日：2016-03-07

Applicant: Bell Helicopter Textron Inc.

Inventor： Carlos A. Fenny ,  Carl T. Elving ,  Rodney M. Cahoon ,  Charles Eric Covington

IPC: B64C27/64

CPC classification number: B64C27/64 ,  B64C27/605 ,  F15B15/1457 ,  F15B15/1466 ,  F15B2211/7054 ,  F15B2211/7055

Abstract: In some embodiments, an actuator includes a chamber, a piston disposed within the chamber, and a tube. The chamber has a first port and a second port. The piston comprises a first surface, a second surface, and an elongated conduit coupling the first surface to the second surface. The first surface is disposed between the first port and the second port. The second surface is offset from the first surface. The tube is disposed at least partially within the elongated conduit of the piston. The tube comprises a third port disposed within the elongated conduit of the piston and a fourth port disposed outside of the elongated conduit of the piston.

Abstract translation: 在一些实施例中，致动器包括室，设置在室内的活塞和管。 该室具有第一端口和第二端口。 活塞包括第一表面，第二表面和将第一表面连接到第二表面的细长导管。 第一表面设置在第一端口和第二端口之间。 第二表面偏离第一表面。 管至少部分地设置在活塞的细长导管内。 管包括设置在活塞的细长导管内的第三端口和设置在活塞的细长导管外侧的第四端口。

公开(公告)号：US09004614B1

公开(公告)日：2015-04-14

申请号：US14036760

申请日：2013-09-25

Applicant: Bell Helicopter Textron Inc.

Inventor： Carl T. Elving ,  James E. Sobel ,  Michael Pujol

IPC: B60T13/22 ,  B60T15/02

CPC classification number: B64C27/12 ,  B60T15/02

Abstract: In some aspects, a master cylinder assembly for vertical lift aircraft is configured to move pressurized fluid through a conduit in response to applied movement of an input lever. A low pressure relief valve can be connected to a first conduit to limit pressure to a low level. An isolation valve can be connected to the first conduit and configured to isolate the low pressure relief valve from the conduit when engaged. A high pressure relief valve can be connected to a second fluid conduit to limit pressure to a high level. In some aspects, a rotor brake actuator is fluidly connected to the first conduit and the second conduit and configured to engage a rotor brake in response to hydraulic fluid pressure.

Abstract translation: 在一些方面，用于垂直提升飞行器的主缸组件被配置成响应于输入杆的应用运动而使加压流体通过导管移动。 低压安全阀可以连接到第一管道，以将压力限制在低水平。 隔离阀可以连接到第一管道并且被配置为在接合时将低压安全阀与管道隔离。 高压安全阀可以连接到第二流体管道，以将压力限制在高水平。 在一些方面，转子制动器致动器流体地连接到第一管道和第二管道，并被配置为响应于液压流体压力接合转子制动器。