Quick disconnect fluid coupling with integral pressure relief feature
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F16L-037/28
출원번호
US-0805992
(1991-12-09)
발명자
/ 주소
Rogers Russell L. (Munith MI) Marrison William C. (Jackson MI) Webster Alexander P. (Jackson MI)
출원인 / 주소
Aeroquip Corporation (Jackson MI 02)
인용정보
피인용 횟수 :
30인용 특허 :
0
초록▼
A quick disconnect fluid coupling for a liquid-cooled, preprogrammed card for an aircraft communication or navigation system, the coupling being made up of male and female coupling elements which are closed to flow in the free or uncoupled state and which are open to flow when coupled. The male coup
A quick disconnect fluid coupling for a liquid-cooled, preprogrammed card for an aircraft communication or navigation system, the coupling being made up of male and female coupling elements which are closed to flow in the free or uncoupled state and which are open to flow when coupled. The male coupling element has an integral pressure relief feature which operates in two phases. In a first phase the male coupling element remains closed to fluid flow, but accommodates an increase in fluid pressure by movement of an annular valve sleeve within an outer annular member to increase the fluid volume within the annular member. In a second phase an end of a valve member of the male coupling element is biased away from sealing engagement with an end of the annular valve sleeve by fluid pressure, against the biasing effect of a return spring which is trapped between the annular valve sleeve and a perforate annular retainer that is affixed to an opposed end of the valve member, to permit fluid to be dumped from the coupling element.
대표청구항▼
A coupling for a fluid line, said coupling comprising first and second coupling elements coupled together to permit fluid to flow in series through said coupling elements, said first coupling element comprising: a first annular member, said first annular member having a larger diameter portion exten
A coupling for a fluid line, said coupling comprising first and second coupling elements coupled together to permit fluid to flow in series through said coupling elements, said first coupling element comprising: a first annular member, said first annular member having a larger diameter portion extending inwardly from a first end thereof, a reduced diameter portion extending substantially from a second end thereof to said larger diameter portion, a first transversely extending annular shoulder at a juncture between said larger diameter portion and said reduced diameter portion, said first annular shoulder extending outwardly from said reduced diameter portion, and a second transversely extending annular shoulder adjacent said second end thereof said second annular shoulder extending inwardly from said reduced diameter portion; an annular valve body positioned within said larger diameter portion of said first annular member, said annular valve body being slidable within said first annular member and being in a position where an end of said annular valve body is in engagement with said first shoulder, said annular valve body further having an opposed end which extends outwardly beyond said first end of said first annular member, said annular valve body further having on its inside surface, between its end and its opposed end, a surface portion which tapers inwardly as it extends toward said opposed end; a valve, said valve having a first end and an opposed end, said first end being generally cylindrical, said opposed end being larger in radial extent than said first end and having longitudinally extending slot means extending therethrough, said valve further having a tapered surface between said first end and said opposed end, said tapered surface tapering inwardly as it extends toward said first end, said valve being moveable within said annular valve body and being in a position where said first end is positioned inwardly of said opposed end of said valve body, said tapered surface of said valve being out of engagement with said surface portion of said annular valve body in said first position of the valve; and spring means trapped between said second annular shoulder of said (first annular member and said opposed end of said valve, said spring means resiliently urging said valve toward said second coupling element; said second coupling element comprising: a second annular member having a first end with a restricted opening and a second end with a restricted opening, said second end of said second annular member being adjacent to said first end of said first annular member; a perforate retainer, said perforate retainer being slidably positioned within said second annular member, said perforate retainer being adjacent said first end of said second annular member; an annular valve sleeve, said annular valve sleeve having a larger diameter portion which is slidably positioned within said annular member, a reduced diameter portion which extends from said larger diameter portion toward said second end of said second annular member and a generally transversely extending shoulder at a juncture between said larger diameter portion and said smaller diameter portion, said shoulder of said annular valve sleeve being in engagement with a free end of said annular valve body of said first coupling element; spring means trapped between said perforate annular retainer and said annular valve sleeve for resiliently urging said annular valve sleeve toward said first coupling element; and an elongate valve member having a first end affixed to said perforate retainer and a second end extending beyond said reduced diameter portion of said annular valve sleeve, said elongate valve member engaging a free end of said first end of said valve to keep said first end of said valve from blocking fluid flow through said opposed end of said annular valve body.
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이 특허를 인용한 특허 (30)
Wells Michael P., Anti-check low spill fluid coupling.
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