公开(公告)号：US20180258963A1

公开(公告)日：2018-09-13

申请号：US15454224

申请日：2017-03-09

Applicant: Parker-Hannifin Corporation

Inventor： Blake Adam Carl ,  James William Howland

IPC: F15B15/12 ,  F16H39/04 ,  F16K31/04 ,  F16K11/16

CPC classification number: F15B15/12 ,  F04B17/05 ,  F04B49/002 ,  F15B9/09 ,  F15B9/12 ,  F15B9/14 ,  F15B15/202 ,  F16H39/04 ,  F16K11/163 ,  F16K31/041

Abstract: A rotary actuator includes a central housing; an output shaft that extends through the central housing; a vane that is mechanically coupled to the output shaft and divides the central housing into a first chamber and a second chamber; and a flow control mechanism that is moveable within the central housing and including a high pressure port and a low pressure port for communicating hydraulic fluid into and from the first and second chambers. The flow control mechanism is moveable to position the high pressure port and low pressure port relative to the first chamber and the second chamber for communication of the hydraulic fluid, thereby generating a pressure differential across the chambers. The vane rotates within the central housing in response to the pressure differential, and rotation of the vane drives the output shaft. A motor is configured to receive control signals to drive the movement of the flow control mechanism.

公开(公告)号：US10316867B2

公开(公告)日：2019-06-11

申请号：US15454224

申请日：2017-03-09

Applicant: Parker-Hannifin Corporation

Inventor： Blake Adam Carl ,  James William Howland

IPC: F15B15/12 ,  F16H39/04 ,  F16K31/04 ,  F16K11/16 ,  F15B9/09 ,  F15B9/12 ,  F15B9/14 ,  F15B15/20 ,  F04B17/05 ,  F04B49/00

Abstract: A rotary actuator includes a central housing; an output shaft that extends through the central housing; a vane that is mechanically coupled to the output shaft and divides the central housing into a first chamber and a second chamber; and a flow control mechanism that is moveable within the central housing and including a high pressure port and a low pressure port for communicating hydraulic fluid into and from the first and second chambers. The flow control mechanism is moveable to position the high pressure port and low pressure port relative to the first chamber and the second chamber for communication of the hydraulic fluid, thereby generating a pressure differential across the chambers. The vane rotates within the central housing in response to the pressure differential, and rotation of the vane drives the output shaft. A motor is configured to receive control signals to drive the movement of the flow control mechanism.