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Linear magnetic valve actuator with external magnets and internal magnetic flux path

An actuator and actuation technology, applied in the direction of magnets, magnetic objects, circuits, etc., can solve problems such as difficult to achieve high temperature operation, degradation, and loss of magnetic properties of ferromagnetic materials

Active Publication Date: 2021-02-19
爱德华 P 戴维斯
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous sealless valves typically employed curved or flexing components such as bellows or membranes that degraded or fatigued and also leaked chronically
Additionally, previous generations of magnetic valves often contained internal magnets that made high temperature operation difficult because high temperatures could cause the ferromagnetic material inside the valve to lose its magnetic properties

Method used

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  • Linear magnetic valve actuator with external magnets and internal magnetic flux path
  • Linear magnetic valve actuator with external magnets and internal magnetic flux path
  • Linear magnetic valve actuator with external magnets and internal magnetic flux path

Examples

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Embodiment Construction

[0039] In the following description, reference is made to the accompanying drawings that illustrate several embodiments of the present disclosure. It is to be understood that other embodiments may be utilized and system or process changes may be made without departing from the spirit and scope of the present disclosure. Therefore, the following detailed description should not be considered in a limiting sense, and the scope of the embodiments of the present invention is defined only by the claims of the issued patent. It should be understood that the drawings are not necessarily drawn to scale.

[0040] Various embodiments of the present disclosure provide improved systems and methods for actuating valves using external magnets and internal magnetic flux paths. These embodiments can provide improved durability and leak resistance, and overcome various technical challenges presented when using conventional magnetic valves.

[0041] Figure 1A and 1B A portion of valve assem...

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PUM

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Abstract

Various devices and techniques related to magnetically-actuated valves are generally described. In some examples, valves may include a bonnet defining an enclosure. In various examples, a movable valve member may be disposed in the enclosure. A valve stem may be disposed in the enclosure and may be operatively coupled to the movable valve member. A first internal ferromagnetic actuation member anda second internal ferromagnetic actuation member may be coupled to the valve stem. The first internal ferromagnetic actuation member and the second internal ferromagnetic actuation member may be disposed in a spaced relationship along the valve stem. In various examples, the valves may include an external actuator slidably engaged to an exterior surface of the valve bonnet. The external actuatormay comprise a first magnet magnetically coupled to the first internal ferromagnetic actuation member and a second magnet magnetically coupled to the second internal ferromagnetic actuation member.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Application No. 62 / 685,115, filed June 14, 2018, the disclosure of which is incorporated herein by reference in its entirety. technical field [0003] The present application relates to valve technology, and more particularly to valve actuator mechanisms. Background technique [0004] Valves often leak due to their age. Leak valves can be annoying, wasteful and potentially damaging in a residential setting, but can be more problematic in industrial applications. It may be necessary to shut down the factory line to repack or replace valves, resulting in lost production and unnecessary downtime. Spills can cause environmental damage and safety concerns. Steam leaks can burn and even kill workers. The Environmental Protection Agency (EPA) is concerned about contamination caused by leaking valve stem seals in factories and oil fields. In extreme cases such as se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K31/06F16K31/08
CPCF16K31/08F16K31/086H01F7/1615F16K31/06
Inventor 爱德华·P·戴维斯
Owner 爱德华 P 戴维斯