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Stepper motor operated balanced flow control valve

A technology for stepping motors and control valves, applied in balance valves, valve operation/release devices, lift valves, etc., can solve problems such as reducing position accuracy and repeatability of valve components

Inactive Publication Date: 2016-07-27
MAC VALVES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The complexity, energy loss and tolerances of the multiple moving parts in the known system reduce the accuracy of position and the repeatability of the valve member falling into the same position, but these are all favorable reasons for using stepper motors to operate valves

Method used

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  • Stepper motor operated balanced flow control valve
  • Stepper motor operated balanced flow control valve
  • Stepper motor operated balanced flow control valve

Examples

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Embodiment Construction

[0039] Embodiments of the present invention will now be described more fully with reference to the accompanying drawings.

[0040] The embodiments are intended to thoroughly disclose the present invention and fully convey the scope of the present invention to those skilled in the art. Numerous specific details are set forth herein, such as examples of specific components, devices, and methods, to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to those skilled in the art that specific details need not be employed, that the embodiments may be practiced in many different forms and that neither should be construed to limit the scope of the disclosure. In some example embodiments, well-known methods, well-known device structures, and well-known technologies are not described in detail.

[0041] The terminology used herein is for the purpose of describing particular implementation examples only and is not intended to be limiting. As ...

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PUM

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Abstract

A flow control valve includes a body having a body bore oriented coaxially with a longitudinal axis of the body and a seat member extending into the bore. A valve member is slidably disposed in the body bore and oriented coaxially with the longitudinal axis of the body. The valve member includes a non-circular geometrically shaped head having a bore. A drive adapter includes a head receiving cavity slidingly receiving the geometrically shaped head of the valve member and preventing axial rotation of the valve member. A stepper motor is connected to the drive adapter, the stepper motor incrementally rotating a shaft engaged with the bore of the valve member. First and second equal diameter pistons of the valve member provide pressure balanced valve member operating positions.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Patent Application Serial No. 14 / 595,351, which is a Continuation-in-Part of another US Patent Application Serial No. 12 / 836,214. The entire contents of the aforementioned US Patent Application No. 12 / 836,214 are hereby incorporated by reference. technical field [0003] This invention relates to liquid flow control valves operated by stepper motors. Background technique [0004] This section provides background information related to the present disclosure which is not necessarily prior art. [0005] For flow control valves that require more precise control over changes in flow, they can be operated by using stepper motors so that their valve members can be moved between fully open and / or fully closed positions more accurately every time. the same location. Compared to other known valve actuators, the precision of stepper motors is advantageous for operations that require pre...

Claims

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Application Information

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IPC IPC(8): F16K17/20F16K31/04
CPCF16K17/20F16K31/04F16K11/07F16K27/029F16K31/508F16K41/12F16K1/00
Inventor 凯文·C·威廉斯保罗·A·亚赫
Owner MAC VALVES