Externally-mounted, stationary-design, self-aligning rotary face seal
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16J-015/34
출원번호
US-0908727
(1992-07-06)
우선권정보
CA-2004636 (1989-12-05)
발명자
/ 주소
Drumm Kevin R. (Hamilton CAX)
출원인 / 주소
Nuraseal Company, Limited (Ontario CAX 03)
인용정보
피인용 횟수 :
17인용 특허 :
0
초록▼
An externally-mounted, stationary-design, self-aligning, rotary face-seal is provided for securement to a rotatable shaft member extending through a housing of equipment containing a media (e.g. liquid, gas or granular solids) which is to be sealed therein. The seal includes a diametrically-split mo
An externally-mounted, stationary-design, self-aligning, rotary face-seal is provided for securement to a rotatable shaft member extending through a housing of equipment containing a media (e.g. liquid, gas or granular solids) which is to be sealed therein. The seal includes a diametrically-split mounting plate having a plurality of spaced-apart recesses in a face thereof, the assembled mounting plate being secured in sealed relation to the housing of the equipment and with the rotatable shaft member extending through the mounting plate and projecting into an ambient environment exteriorly of the housing. The seal includes a diametrically-split stator face disposed in the ambient environment. A face of the stator is fitted with spaced-apart anti-rotation guide pins, the projecting ends of the guide pins being disposed within the associated recesses in a face of the mounting plate. A resilient spring member is captured on each respective guide pin. One end of the spring member abuts a face of the stator. Each spring member is retained on the guide pin, thereby providing a pre-assembled unit comprised of the stator, the guide pins and the resilient spring members. The seal also includes a diametrically-split rotor which is fluid-tightly fitted and secured onto the rotatable shaft in the ambient environment, with its inboard face in sealing contact with the outboard face of the stator.
대표청구항▼
An externally-mounted, stationary-design, self-aligning, rotary face-seal for securement to a rotatable shaft member extending through a housing of equipment containing a media which is to be sealed therein, said seal, when secured to said rotatable shaft member, comprising: (i) a mounting plate hav
An externally-mounted, stationary-design, self-aligning, rotary face-seal for securement to a rotatable shaft member extending through a housing of equipment containing a media which is to be sealed therein, said seal, when secured to said rotatable shaft member, comprising: (i) a mounting plate having an inboard face and an outboard face, said mounting plate having a plurality of spaced-apart recesses in the outboard face thereof, said mounting plate being secured with its inboard face abutting said housing of said equipment in sealed relation therewith and with said rotatable shaft member extending through the mounting plate and projecting exteriorly of said housing into an ambient environment; (ii) a diametrically-split stator having an inboard face and an outboard face, said stator being disposed in said ambient environment and being fitted with a plurality of spaced-apart anti-rotation guide pins projecting from said inboard face of said stator, the projecting ends of said guide pins being disposed within associated recesses in the outboard face of said mounting plate, and a resilient spring member captured on each associated guide pin, one end of said spring member abutting said inboard face of said stator, each said spring member being retained on said associated pin and being presented from entering said recess, thereby providing a pre-assembled unit comprising said stator, said guide pins and said resilient spring members; and (iii) a diametrically-split rotor having an inboard face and an outboard face, fluid-tightly fitted and secured onto said exteriorly projecting rotatable shaft member, said rotor being disposed in said ambient environment, and said inboard face being in sealing contact with said outboard face of said stator; each said resilient spring member which is captured on each associated said guide pin thereby being disposed between said outboard face of said mounting plate and said inboard face of said stator, said resilient spring members thereby urging said outboard face of said stator axially into tight sealing contact with said inboard face of said rotor both when said rotatable shaft is not rotating and during rotation of said rotatable shaft.
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이 특허를 인용한 특허 (17)
Dellacorte Christopher, Dynamic face seal arrangement.
Negra, Angelico Della; Zampa, Massimiliano; Antonini, Riccardo, Sealing device, in particular for a shaft inserted transversely in a vessel of fluids under pressure or granular material in movement.
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