公开(公告)号：US10203704B2

公开(公告)日：2019-02-12

申请号：US15625977

申请日：2017-06-16

Applicant: Moog Inc

Inventor： Gregory B. Weber

IPC: G05D7/06 ,  F16K11/07 ,  F16K31/00 ,  F16K31/02 ,  F16K37/00 ,  F15B13/043 ,  F15B21/08 ,  G05D3/12 ,  F15B13/08 ,  F15B19/00 ,  F15B13/04

Abstract: A servovalve system comprising a pilot stage valve in communication with an hydraulic stage valve, the hydraulic stage valve comprising a valve member movably mounted in a valve chamber to selectively meter fluid flow in a flow path from an upstream inlet port to a downstream outlet port and at least two variable-sized orifices disposed in the flow path between the inlet and outlet ports, an upstream pressure sensor, a downstream pressure sensor, a fluid temperature sensor, a position sensor sensing a linear position of the valve member, a controller that receives input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor; and the controller configured to provide a control signal to the pilot stage valve as a function of the input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor.

公开(公告)号：US20170364097A1

公开(公告)日：2017-12-21

申请号：US15625977

申请日：2017-06-16

Applicant: Moog Inc

Inventor： Gregory B. Weber

IPC: G05D7/06 ,  F16K31/02 ,  F16K31/00 ,  F16K37/00 ,  F16K11/07

CPC classification number: G05D7/0623 ,  F15B13/043 ,  F15B13/0438 ,  F15B13/086 ,  F15B19/002 ,  F15B19/005 ,  F15B21/087 ,  F15B2013/0409 ,  F15B2211/615 ,  F15B2211/6306 ,  F15B2211/6309 ,  F15B2211/6316 ,  F15B2211/634 ,  F15B2211/6343 ,  F15B2211/6654 ,  F15B2211/6656 ,  F15B2211/8609 ,  F16K11/07 ,  F16K31/002 ,  F16K31/02 ,  F16K37/0041 ,  F16K37/005 ,  G05D3/12 ,  G05D7/005

Abstract: A servovalve system comprising a pilot stage valve in communication with an hydraulic stage valve, the hydraulic stage valve comprising a valve member movably mounted in a valve chamber to selectively meter fluid flow in a flow path from an upstream inlet port to a downstream outlet port and at least two variable-sized orifices disposed in the flow path between the inlet and outlet ports, an upstream pressure sensor, a downstream pressure sensor, a fluid temperature sensor, a position sensor sensing a linear position of the valve member, a controller that receives input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor; and the controller configured to provide a control signal to the pilot stage valve as a function of the input from the upstream pressure sensor, the downstream pressure sensor, the fluid temperature sensor and the position sensor.