IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0767907
(2010-04-27)
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등록번호 |
US-8281947
(2012-10-09)
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발명자
/ 주소 |
- Walkowski, Paul D.
- Mills, Vaughn K.
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
2 인용 특허 :
17 |
초록
▼
A fuel storage system includes a tank, a check valve having an inlet tube, an anti-siphon device and a fuel intake tube. The anti-siphon device includes a ring defining an interior opening having a diameter. The ring abuts an upstream end of the inlet tube of the check valve, which includes an inner
A fuel storage system includes a tank, a check valve having an inlet tube, an anti-siphon device and a fuel intake tube. The anti-siphon device includes a ring defining an interior opening having a diameter. The ring abuts an upstream end of the inlet tube of the check valve, which includes an inner diameter substantially equal to the diameter of the interior opening of the ring. The ring includes and supports a plurality of fins within the inlet tube without narrowing the inlet tube to maximize fluid flow through the inlet tube. The anti-siphon device is rotatable relative to the check valve and the fuel intake tube. The shape, size and orientation of the fins are optimized to minimize flow interruption through the anti-siphon device and minimize vaporization of the fluid.
대표청구항
▼
1. An anti-siphon device for a fuel storage system, the anti-siphon device comprising: a ring concentric with a longitudinal axis and defining an interior opening;at least one fin spanning across the interior opening of the ring and having a depth extending away from the ring along the longitudinal
1. An anti-siphon device for a fuel storage system, the anti-siphon device comprising: a ring concentric with a longitudinal axis and defining an interior opening;at least one fin spanning across the interior opening of the ring and having a depth extending away from the ring along the longitudinal axis; andat least one projection extending inward from the ring into the interior opening of the ring;wherein the interior opening of the ring defines a diameter and wherein the ring abuts an end of a tube having an inner diameter substantially equal to the diameter of the interior opening of the ring such that the ring supports the at least one fin within the tube without substantially narrowing the inner diameter of the tube, thereby minimizing a fluid pressure drop through the tube during refilling; andwherein the at least one fin and the at least one projection cooperate to prevent passage of an object having an outer diameter of at least 5.0 mm from passing through the interior opening of the ring. 2. An anti-siphon device as set forth in claim 1 wherein the at least one fin extends from the ring to a distal edge, wherein the distal edge defines a semi-circular cut-out when viewed in a direction perpendicular to the longitudinal axis. 3. An anti-siphon device as set forth in claim 2 wherein the at least one fin includes a cross section defining an airfoil shape when viewed in a direction perpendicular to the longitudinal axis and perpendicular to the semi-circular cut-out. 4. An anti-siphon device as set forth in claim 3 wherein the airfoil shape of the at least one fin includes a first edge, a second edge, and a middle section disposed between the first edge and the second edge, wherein the first edge and the second edge include a thickness between the range of 0.5 mm and 1.0 mm, and the middle section includes a thickness between the range of 0.75 mm and 1.5 mm. 5. An anti-siphon device as set forth in claim 1 wherein the at least one projection includes four projections, wherein a first projection and a second projection are disposed on opposite sides of the at least one fin relative to a third projection and a fourth projection. 6. An anti-siphon device as set forth in claim 1 wherein only the at least one projection and the at least one fin are disposed within a fluid flow path defined by the tube, with the ring disposed outside the fluid flow path defined by the tube. 7. An anti-siphon device for a fuel storage system, the anti-siphon device comprising: a ring concentric with a longitudinal axis and defining an interior opening; andat least one fin spanning across the interior opening of the ring and having a depth extending away from the ring along the longitudinal axis;wherein the interior opening of the ring defines a diameter and wherein the ring abuts an end of a tube having an inner diameter substantially equal to the diameter of the interior opening of the ring such that the ring supports the at least one fin within the tube without substantially narrowing the inner diameter of the tube, thereby minimizing a fluid pressure drop through the tube during refilling;wherein the at least one fin extends from the ring to a distal edge, wherein the distal edge defines a semi-circular cut-out when viewed in a direction perpendicular to the longitudinal axis;wherein the at least one fin includes a cross section defining an airfoil shape when viewed in a direction perpendicular to the longitudinal axis and perpendicular to the semi-circular cut-out; andwherein the airfoil shape of the at least one fin includes a first edge, a second edge, and a middle section disposed between the first edge and the second edge, wherein the first edge and the second edge include a thickness between the range of 0.5 mm and 1.0 mm, and the middle section includes a thickness between the range of 0.75 mm and 1.5 mm. 8. An anti-siphon device as set forth in claim 7 wherein the at least one fin includes three fins arranged in parallel. 9. An anti-siphon device as set forth in claim 7 wherein the at least one fin and the at least one projection cooperate to prevent passage of an object having an outer diameter of at least 5.0 mm from passing through the interior opening of the ring. 10. A fuel storage system for a vehicle, the fuel storage system comprising: a tank defining an inlet;a check valve coupled to the tank and in fluid communication with the inlet of the tank and including an inlet tube, the check valve configured for permitting fuel flow into the tank and preventing fluid flow from the tank;a fuel intake tube coupled to the check valve; andan anti-siphon device disposed between and rotatably positionable relative to the check valve and the fuel intake tube, the anti-siphon device including: a ring concentric with a longitudinal axis and defining an interior opening;at least one fin spanning across the interior opening of the ring and having a depth extending away from the ring along the longitudinal axis; andat least one projection extending inward from the ring into the interior opening of the ring;wherein the interior opening of the ring defines a diameter and wherein the ring abuts an end of the inlet tube having an inner diameter substantially equal to or smaller than the diameter of the interior opening of the ring such that the ring supports the at least one fin within the inlet tube without substantially narrowing the inner diameter of the inlet tube, thereby minimizing a fluid pressure drop through the inlet tube during refilling; andwherein the at least one fin and the at least one projection cooperate to prevent passage of an object having an outer diameter of at least 5.0 mm from passing through the interior opening of the ring. 11. A fuel storage system as set forth in claim 10 wherein the at least one fin extends from the ring to a distal edge, wherein the distal edge defines a semi-circular cut-out when viewed in a direction perpendicular to the longitudinal axis. 12. A fuel storage system as set forth in claim 10 wherein the at least one fin includes a cross sectional shape when viewed in a direction perpendicular to the longitudinal axis and perpendicular to the semi-circular cut-out defining an airfoil shape. 13. A fuel storage system as set forth in claim 12 wherein the airfoil shape of the at least one fin includes a first edge, a second edge, and a middle section disposed between the first edge and the second edge, wherein the first edge and the second edge include a thickness between the range of 0.5 mm and 1.0 mm, and the middle section includes a thickness between the range of 0.75 mm and 1.5 mm. 14. A fuel storage system as set forth in claim 10 wherein the inlet tube of the check valve includes an upstream end defining a chamfered edge, and wherein the ring includes a chamfered edge in abutting engagement with the chamfered edge of the inlet tube and cooperating with the chamfered edge of the inlet tube to position the anti-siphon device relative to the check valve, perpendicular to the longitudinal axis. 15. A fuel storage system as set forth in claim 10 wherein only the at least one projection and the at least one fin are disposed within a fluid flow path defined by the tube, with the ring disposed outside the fluid flow path defined by the tube. 16. A fuel storage system for a vehicle, the fuel storage system comprising: a tank defining an inleta check valve coupled to the tank and in fluid communication with the inlet of the tank and including an inlet tube, the check valve configured for permitting fuel flow into the tank and preventing fluid flow from the tank;a fuel intake tube coupled to the check valve; andan anti-siphon device disposed between and rotatably positionable relative to the check valve and the fuel intake tube, the anti-siphon device including: a ring concentric with a longitudinal axis and defining an interior opening; andat least one fin spanning across the interior opening of the ring and having a depth extending away from the ring along the longitudinal axis;wherein the interior opening of the ring defines a diameter and wherein the ring abuts an end of the inlet tube having an inner diameter substantially equal to or smaller than the diameter of the interior opening of the ring such that the ring supports the at least one fin within the inlet tube without substantially narrowing the inner diameter of the inlet tube, thereby minimizing a fluid pressure drop through the inlet tube during refilling; andwherein the airfoil shape of the at least one fin includes a first edge, a second edge, and a middle section disposed between the first edge and the second edge, wherein the first edge and the second edge include a thickness between the range of 0.5 mm and 1.0 mm, and the middle section includes a thickness between the range of 0.75 mm and 1.5 mm. 17. A fuel storage system as set forth in claim 16 wherein the at least one fin includes three fins arranged in parallel. 18. A fuel storage system as set forth in claim 17 further including a first projection, a second projection, a third projection and a fourth projection extending inward from the ring into the interior opening of the ring, perpendicular relative to the at least one fin, wherein the first projection and the second projection are disposed on opposite sides of the at least one fin relative to the third projection and the fourth projection. 19. A fuel storage system as set forth in claim 18 wherein the at least one fin, the first projection, the second projection, the third projection and the fourth projection cooperate to prevent passage of an object having an outer diameter of at least 5.0 mm from passing through the interior opening of the ring. 20. A fuel storage system as set forth in claim 18 wherein only the at least one fin, the first projection, the second projection, the third projection and the fourth projection are disposed within a fluid flow path defined by the inlet tube, with the ring disposed outside the fluid flow path defined by the inlet tube.
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