Spring ring valve seat and butterfly valve with spring ring valve seat
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0210528
(2016-07-14)
|
등록번호 |
US-10184567
(2019-01-22)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
8 |
초록
▼
A butterfly valve has a housing that has an annular valve seat and a butterfly disk that has an annular valve seat. At least one of the valve seats is a spring seat that has an annular mounting portion and an axially opposite annular engagement portion. The engagement portion is configured to contac
A butterfly valve has a housing that has an annular valve seat and a butterfly disk that has an annular valve seat. At least one of the valve seats is a spring seat that has an annular mounting portion and an axially opposite annular engagement portion. The engagement portion is configured to contact the other valve seat and resiliently deform radially under hoop stress caused by the contact as the butterfly disk moves to the closed position. The engagement portion is connected to the main body of the respective one of housing or the butterfly disk by the mounting portion. The mounting portion is attached to the main body of the respective one of housing or the butterfly disk in a manner such that the mounting portion can articulate relative to the main body of the respective one of housing or the butterfly disk as the engagement portion resiliently deforms radially.
대표청구항
▼
1. A butterfly valve comprising: a housing, the housing comprising a main body and an annular valve seat, the housing defining a fluid passageway that extends through the main body and the valve seat; anda butterfly disk, the butterfly disk comprising a main body and an annular valve seat, the butte
1. A butterfly valve comprising: a housing, the housing comprising a main body and an annular valve seat, the housing defining a fluid passageway that extends through the main body and the valve seat; anda butterfly disk, the butterfly disk comprising a main body and an annular valve seat, the butterfly disk being pivotally mounted to the housing such that the butterfly disk is movable to and between an open position and a closed position, the butterfly disk being configured to prevent fluid from passing through the fluid passageway of the housing when the butterfly disk is in the closed position;wherein at least one of the valve seats is a spring seat having a cross-section that sweeps three-hundred and sixty degrees about an axis, the spring seat having an annular mounting portion and an axially opposite annular engagement portion, the engagement portion being configured to contact the other of the valve seats and resiliently deform radially under hoop stress caused by the contact as the butterfly disk moves to the closed position, the engagement portion being connected to the main body of the respective one of housing or the butterfly disk by the mounting portion, the mounting portion having an annular protrusion with a semi-circular cross-section, the mounting portion being attached to the main body of the respective one of the housing or the butterfly disk via the annular protrusion in a manner such that the mounting portion can articulate relative to the main body of the respective one of housing or the butterfly disk as the engagement portion resiliently deforms radially, the main body of the respective one of the housing or the butterfly disk comprising an annular recess having a semi-circular cross-section, the annular recess semi-circular cross section receiving the mounting portion annular protrusion in attaching the mounting portion to the main body of the respective one of the housing or the butterfly disk. 2. A butterfly valve in accordance with claim 1 wherein, in the cross-section, the engagement portion of the spring seat is elongate and arcuate. 3. A butterfly valve in accordance with claim 1 wherein the spring seat is connected to the butterfly disk for movement therewith relative to the housing, and the engagement portion of the spring seat has an exterior surface that is convex in the direction of the axis. 4. A butterfly valve in accordance with claim 1 wherein the mounting portion of the spring seat forms a partial torus, the partial torus of the mounting portion of the spring seat is trapped within the annular recess of the respective one of the housing or the butterfly disk via interlocking geometry, and the engagement portion of the spring seat extends outside of the annular recess. 5. A butterfly valve in accordance with claim 4 wherein the partial torus of the mounting portion of the spring seat comprises an annular groove that extends around the axis and that is configured and adapted to receive an O-ring. 6. An annular valve seat, the valve seat being monolithic and having a solid cross-section that extends three hundred and sixty degrees about an axis, the cross-section comprising a mounting portion and an engagement portion, the engagement portion extending axially in an arcuate and elongate manner from the mounting portion, the mounting portion having at least a semi-circular cross-section and having an outer periphery, the outer periphery of the mounting portion having at least a semi-circular portion; wherein the engagement portion has a side that faces the axis and a side that faces away from the axis, the side that faces the axis is concave and the side that faces away from the axis is convex, the concave side extends from a first point on the outer periphery of the mounting surface and the convex side extends from a second point on the outer periphery of the mounting surface, the second point being spaced from the first point around the outer periphery of the mounting portion. 7. An annular valve seat in accordance with claim 6 wherein the valve seat comprises an annular groove that extends around the axis and that is configured and adapted to receive a polymeric O-ring. 8. A butterfly valve comprising: a housing, the housing comprising a main body and an annular valve seat, the housing defining a fluid passageway that extends through the main body and the valve seat;a butterfly disk, the butterfly disk comprising a main body and an annular spring seat, the butterfly disk being pivotally mounted to the housing such that the butterfly disk is movable to and between an open position and a closed position, the butterfly disk being configured to prevent fluid from passing through the fluid passageway of the housing when the butterfly disk is in the closed position, the main body of the butterfly disk comprising an annular recess having a semi-circular cross-section, the spring seat having an annular mounting portion and an axially opposite annular engagement portion, the engagement portion being configured to contact the valve seat of the housing and resiliently deform radially under hoop stress caused by the contact as the butterfly disk moves to the closed position, the mounting portion comprising an annular protrusion having a semi circular cross-section, the annular protrusion of the mounting portion of the spring seat being at least partially positioned within the annular recess of the main body of the butterfly disk such that the spring seat is secured to the main body of the butterfly disk but can articulate therein.
이 특허에 인용된 특허 (8)
-
Sahba Bahman (Warwick RI) Champlin ; Jr. Harry C. (Hopkinton RI) Cory John M. (Old Lyme CT), All-metal, valve sealing mechanism.
-
Friess Jean (Clermont en Argonne FRX), Annular valve seating.
-
Whitaker Ritchie W. (El Toro CA), Cryogenic butterfly valve with bi-directional sealing capability.
-
Bonafous Maurice (Oloron FRX), Double toric sealing ring.
-
Krause Bernd (Cincinnati OH), Fire safe seat for a valve.
-
Friess Jean (Clermont En Argonne FRX), Sealing device for valves.
-
De Villepoix Raymond (Donzere FRX) Rouaud Christian (Bourg Saint-Andeol FRX), System with imperviousness joint compressed between two non-parallel bearings.
-
Hutchens Wilbur D. (Marshalltown IA) McMahon Timothy A. (Marshalltown IA) Nolan Brian V. (Mason OH) Kirk Steven M. (Cincinnati OH) Hunsberger ; Jr. Paul R. (Mason OH), Torsionallly loaded fluid seals for rotary valves.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.