IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0216471
(2002-08-09)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
5 |
초록
▼
A ball check valve comprises a valve body chamber which includes an inlet opening, an outlet opening, and a ball that is free to travel within the valve body chamber. A valve seat is adapted for receiving the ball. A body clearance section is located downstream of the inlet opening. A bore section i
A ball check valve comprises a valve body chamber which includes an inlet opening, an outlet opening, and a ball that is free to travel within the valve body chamber. A valve seat is adapted for receiving the ball. A body clearance section is located downstream of the inlet opening. A bore section is located downstream of the body clearance section. Fluid flow is allowed to flow through the valve body from the inlet opening through the outlet opening, but fluid flow through the valve body from the outlet opening through the inlet opening is prohibited by the interaction of the ball and the valve seat. The inlet opening is smoothly contoured to urge fluid flow between the inlet opening and the outlet opening to be laminar in nature.
대표청구항
▼
1. A ball check valve comprising:(a) a valve body, the valve body defining a valve body chamber having an inlet opening, an outlet opening and a longitudinal axis;(b) a ball disposed within the valve body chamber between the inlet opening and the outlet opening, the valve ball being free to travel b
1. A ball check valve comprising:(a) a valve body, the valve body defining a valve body chamber having an inlet opening, an outlet opening and a longitudinal axis;(b) a ball disposed within the valve body chamber between the inlet opening and the outlet opening, the valve ball being free to travel between an upstream-most position and a downstream-most position;(c) a valve seat disposed within the valve body, the valve seat adapted for receiving the ball;(d) a body clearance section defined within the valve body chamber downstream of the inlet opening; and(e) a bore section defined within the valve body chamber downstream of the body clearance section;wherein the valve body, the ball, the valve seat, the body clearance section and the bore section cooperate so that fluid flow is allowed to flow through the valve body from the inlet opening through the outlet opening, but fluid flow through the valve body from the outlet opening through the inlet opening is prohibited by the interaction of the ball and the valve seat,wherein the body clearance section smoothly transitions to the bore section via an upstream transition section;wherein the bore section smoothly transitions to the outlet opening via a downstream transition section; andwherein the distance i along the longitudinal axis between the upstream end of the body clearance section and the downstream end of the bore section is between about 1.2 h and about 1.3 h, h being the distance along the longitudinal axis between the downstream end of the body clearance section and the downstream end of the bore section.2. A ball check valve according to claim 1 wherein the valve seat comprises an inner ring, a flow plate and an O-ring seal.3. A ball check valve according to claim 1 wherein the diameter a of the inlet opening is essentially equal to the diameter b of the outlet opening.4. A ball check valve according to claim 1 wherein the diameter c of the bore section is between about 1.431 a+0.306 and about 1.49 a+0.319, a being the diameter of the inlet opening.5. A ball check valve according to claim 1 wherein the diameter d of the valve ball is between about 1.1305 a+0.1034 and about 1.249 a+0.1143, a being the diameter of the inlet opening.6. A ball check valve according to claim 1 wherein the diameter e of the body clearance section is between about d and about 1.1 d, d being the diameter of the valve ball.7. A ball check valve according to claim 1 wherein the distance f between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position is between about 0.1143 a and about 0.1714 a, a being the diameter of the inlet opening.8. A ball check valve according to claim 1 wherein the distance g between the valve ball and the upstream transition section when the valve ball is disposed in the downstream-most position is between about 0.95 f and about 1.05 f, f being the distance between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position.9. A ball check valve according to claim 1 wherein the distance h along the longitudinal axis between the downstream end of the body clearance section and the downstream end of the bore section is between about 2.25 (f2+g2)1/2 and about 2.75 (f2+g2)1/2, f being the distance between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position and a being the distance between the valve body and the upstream transition section when the valve ball is disposed in the downstream-most position.10. A ball check valve according to claim 1 wherein the inlet opening is smoothly contoured to urge fluid flow between the inlet opening and the outlet opening to be laminar in nature.11. A ball check valve comprising:(a) a valve body, the valve body defining a valve body chamber having an inlet opening, an outlet opening and a longitudinal axis;(b) a ball disposed within the valve body chamber between the inlet opening and the outlet opening, the valve ball being free to travel between an upstream-most position and a downstream-most position;(c) a valve seat disposed within the valve body, the valve seat adapted for receiving the ball;(d) a body clearance section defined within the valve body chamber downstream of the inlet opening; and(e) a bore section defined within the valve body chamber downstream of the body clearance section;wherein the valve body, the ball, the valve seat, the body clearance section and the bore section cooperate so that fluid flow is allowed to flow through the valve body from the inlet opening through the outlet opening, but fluid flow through the valve body from the outlet opening through the inlet opening is prohibited by the interaction of the ball and the valve seat,wherein the body clearance section smoothly transitions to the bore section via an upstream transition section;wherein the bore section smoothly transitions to the outlet opening via a downstream transition section; andwherein the distance h along the longitudinal axis between the downstream end of the body clearance section and the downstream end of the bore section is between about 2.75 (f2+g2)1/2, f being the distance between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position and g being the distance between the valve body and the upstream transition section when the valve ball is disposed in the downstream-most position.12. A ball check valve according to claim 11 wherein the valve seat comprises an inner ring, a flow plate, and an O-ring seal.13. A ball check valve according to claim 11 wherein the diameter a of the inlet opening is essentially equal to the diameter b of the outlet opening.14. A ball check valve according to claim 11 wherein the diameter c of the bore section is between about 1.431 a+0.306 and about 1.49 a+0.319, a being the diameter of the inlet opening.15. A ball check valve according to claim 11 wherein the diameter d of the valve ball is between about 1.1305 a+0.1034 and about 1.249 a+0.1143, a being the diameter of the inlet opening.16. A ball check valve according to claim 11 wherein the diameter e of the body clearance section is between about d and about 1.1, d being the diameter of the valve ball.17. A ball check valve according to claim 11 wherein the distance f between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position is between about 0.1143 a and about 0.1714 a, a being the diameter of the inlet opening.18. A ball check valve according to claim 11 wherein the distance g between the valve ball and the upstream transition section when the valve ball is disposed in the downstream-most position is between about 0.95 f and about 1.05 f, f being the distance between the valve ball and the downstream transition section when the valve ball is disposed in the downstream-most position.19. A ball check valve according to claim 11 wherein the inlet opening is smoothly contoured to urge fluid flow between the inlet opening and the outlet opening to be laminar in nature.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.