Erosion resistant soft seated valve trim
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0598859
(1984-04-11)
|
발명자
/ 주소 |
|
출원인 / 주소 |
- White Consolidated Industries, Inc. (Cleveland OH 02)
|
인용정보 |
피인용 횟수 :
9 인용 특허 :
8 |
초록
▼
The disclosure is related to a high pressure fluid control valve including a valve seat made from a resilient, deformable material and a main valve plug which is matable with the resilient, deformable valve seat. A selectively, axially displacable valve stem is associated with the valve plug whereby
The disclosure is related to a high pressure fluid control valve including a valve seat made from a resilient, deformable material and a main valve plug which is matable with the resilient, deformable valve seat. A selectively, axially displacable valve stem is associated with the valve plug whereby a contact load placed upon the valve plug by the valve stem will cause the valve plug to be become imbedded within the deformable material comprising the valve seat when the valve is closed and thereby conform the deformable seat precisely to the contour and configuration of those portions of the valve plug which mate with the valve seat. In this manner, a precise zero-leakage mating is obtained each and every time the plug is mated with the seat. In accordance with the invention, an auxiliary throttle plug is associated with the main valve plug and is arranged to mate with a second, metal valve seat which is arranged in an area removed from the resilient, deformable valve seat. The axial movements of each of the valve plug and the throttle plug are coordinated in a manner whereby the primary throttling areas for the fluid flow, particularly during valve opening and valve closing operations are displaced to portions of the valve structure which are remote from the resilient, deformable valve seat.
대표청구항
▼
A high pressure fluid control valve, which comprises (a) a valve body including an internal flow path defining a fluid inlet and a fluid outlet, (b) a first valve seat comprising a deformable resilient material and arranged within said internal flow path, (c) a second valve seat comprising a hardene
A high pressure fluid control valve, which comprises (a) a valve body including an internal flow path defining a fluid inlet and a fluid outlet, (b) a first valve seat comprising a deformable resilient material and arranged within said internal flow path, (c) a second valve seat comprising a hardened, erosion-resistant material and arranged within said internal flow path in a spaced relation to said first valve seat, (d) a main valve plug being selectively, axially movable within said internal flow path and matable with said first, deformable, resilient valve seat to interrupt fluid flow between the fluid inlet and the fluid outlet, and (e) a throttle plug axially movable within said internal flow path in a predetermined relative motion with respect to said main valve plug and matable with said second, hardened, erosion resistant valve seat to interrupt fluid flow between the fluid inlet and the fluid outlet, (f) said predetermined relative motion between said main valve plug and said throttle plug being set whereby the axial movements of the main valve plug and the throttle plug are coordinated in a manner such that the primary throttling area for fluid flow through the valve during valve opening and valve closing operation is across said second, hardened, erosion resistant valve seat, (g) said main valve plug including a central hollow portion, (h) said throttle plug being axially, movably received within said central hollow portion, and (i) retaining the stop means associated with said throttle plug whereby said throttle plug is movable within said central hollow portion and relative to said main valve plug through a predetermined limited distance, (j) said retaining and stop means comprising a plurality of rod-like members mounted to said main valve plug and arranged to extend to within said central hollow portion, (k) each of said rod-like members including an end portion of enlarged diameter, (l) a plurality of passage means formed in said throttle plug, each being arranged to receive a complementary rod-like member, (m) each of said passage means including a stop portion to engage said end portion of enlarged diameter of the complementary rod-like member to thereby stop relative movement between said main valve plug and said throttle plug.
이 특허에 인용된 특허 (8)
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Schdel Hermann (Ergste DEX), Double-seat valve.
-
Fagerlund Allen C. (Marshalltown IA), Eccentrically nested tube gas line silencer.
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Medlar Lewis A. (Oreland PA), Fluid flow control valve with maximized noise reduction.
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Wheeler William R. (Saratoga CA), High vacuum gate valve.
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Skough Evert B. (Westminster CA), Let-down valve.
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Tuchenhagen Otto A. P. (Bchen DEX) Mieth Hans O. E. (Hamburg DEX) Cora Herbert R. (Bchen DEX), Pipeline switch with leakage control and cleanable leakage cavity.
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Huber Richard (Modling near Vienna OE), Sealing system for shutoff elements.
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Huber ; Richard, Sealing system for shutoff units.
이 특허를 인용한 특허 (9)
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Gossett,James L.; Fitzgerald,William V.; Micheel,Raymond W.; Sanders,Donald, Control valve having "C" seal.
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Gossett, James L.; Fitzgerald, William V.; Micheel, Raymond W.; Sanders, Donald; Bush, Donald R.; Helfer, Wade J., Control valve having “C” seal.
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Gossett, James Leroy; Fitzgerald, William V.; Micheel, Raymond W.; Sanders, Donald; Bush, Donald Ray; Helfer, Wade Jonathon, Control valve having “C” seal.
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Weingarten,Zvi, Control valve with integrated insert providing valve seat and plug guides.
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Micheel,Raymond W.; Westwater,David J., Fluid flow control device having a throttling element seal.
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Micheel, Raymond W.; Westwater, David, Fluid pressure control device having a throttling element seal.
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Micheel, Raymond W.; Westwater, David J., Fluid pressure control device having a throttling element seal.
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Rowe, Gordon D.; Winchester, John C., High-pressure face seal.
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Ochs Paul (19 Tall Timber Dr. Morristown NJ 07960), Piston actuated pressure reducing valve.
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