Electric valve

US11913565B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11913565-B2
Application numberUS-202017754834-A
CountryUS
Kind codeB2
Filing dateOct 5, 2020
Priority dateOct 29, 2019
Publication dateFeb 27, 2024
Grant dateFeb 27, 2024

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

In an electric valve, an upper surface of a main body portion of a valve body, a cylindrical portion of the valve body, and a flange member form a groove in an annular recess shape. A stator unit includes a tubular portion that surrounds the groove. A sealing member is disposed in the groove and held between the cylindrical portion of the valve body and the tubular portion of the sealing member.

First claim

Opening claim text (preview).

The invention claimed is: 1. An electric valve comprising: a valve body including a valve chamber; a flange member in a circular shape whose inner peripheral edge is attached to a cylindrical portion protruding from a surface of the valve body; a can in a cylindrical shape attached to an outer peripheral edge of the flange member; a rotor disposed in the can; a valve element driven by rotation of the rotor to open and close a port in the valve chamber; and a stator unit attached on an outside of the can, wherein the surface of the valve body, the cylindrical portion of the valve body, and the flange member form a groove in an annular recess shape, wherein the stator unit includes a tubular portion that surrounds the groove, and wherein a sealing member in an annular shape is disposed in the groove and held between the cylindrical portion of the valve body and the tubular portion of the stator unit. 2. The electric valve according to claim 1 , wherein an external thread portion is formed on an outer circumferential surface of the cylindrical portion of the valve body, wherein an internal thread portion into which the external thread portion is screwed is formed so as to open on the surface of the valve body, and wherein the sealing member is disposed in contact with the surface of the valve body. 3. The electric valve according to claim 2 , wherein the tubular portion of the stator unit includes an inner circumferential surface defining an inner diameter of the tubular portion, the inner diameter increasing in a direction from the flange member toward the surface of the valve body.

Assignees

Inventors

Classifications

  • by rotary motors, e.g. by stepping motors · CPC title

  • Expansion valves · CPC title

  • F16K31/04Primary

    using a motor · CPC title

  • with screw-spindle {or internally threaded actuating means} · CPC title

  • the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body · CPC title

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Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US11913565B2 cover?
In an electric valve, an upper surface of a main body portion of a valve body, a cylindrical portion of the valve body, and a flange member form a groove in an annular recess shape. A stator unit includes a tubular portion that surrounds the groove. A sealing member is disposed in the groove and held between the cylindrical portion of the valve body and the tubular portion of the sealing member.
Who is the assignee on this patent?
Fujikoki Corp
What technology area does this patent fall under?
Primary CPC classification F16K31/04. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Feb 27 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).