IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0490966
(2009-06-24)
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등록번호 |
US-9085306
(2015-07-21)
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발명자
/ 주소 |
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출원인 / 주소 |
- UNION PACIFIC RAILROAD COMPANY
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대리인 / 주소 |
Pillsbury Winthrop Shaw Pittman, LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
35 |
초록
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Disclosed is a locomotive of a train with a plurality of aerodynamic drag reducing devices. A locomotive may have a plurality of drag reducing devices attached to a longitudinal end of the locomotive adjacent a walkway of the locomotive. Each drag reducing device may be positioned at an angle with r
Disclosed is a locomotive of a train with a plurality of aerodynamic drag reducing devices. A locomotive may have a plurality of drag reducing devices attached to a longitudinal end of the locomotive adjacent a walkway of the locomotive. Each drag reducing device may be positioned at an angle with respect to a centerline of the locomotive so as to reduce drag on the locomotive. The drag reducing devices may be mounted to a handrail included on the walkway using separate or single assemblies. Drag reducing devices may also be provided on an opposite or back end of the locomotive, as well as retrofit to a face of the locomotive to reduce drag. Angled winglets may be provided on the drag reducing devices to assist in inducing air flow.
대표청구항
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1. A locomotive comprising: a body;track engaging wheels;a power system in the body for driving the wheels to move the locomotive along a pair of tracks;a walkway provided at a longitudinal end of the locomotive, the walkway extending to enable lateral passage of a person across the longitudinal end
1. A locomotive comprising: a body;track engaging wheels;a power system in the body for driving the wheels to move the locomotive along a pair of tracks;a walkway provided at a longitudinal end of the locomotive, the walkway extending to enable lateral passage of a person across the longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached adjacent to the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the locomotive,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway. 2. The locomotive according to claim 1, wherein the drag reducing devices are positioned at an angle such that each drag reducing device extends outwardly and towards the body from a distal edge thereof to a proximal edge thereof. 3. The locomotive according to claim 2, wherein the angle for positioning each of the drag reducing devices is adjustable. 4. The locomotive according to claim 2, wherein the proximal edges of the drag reducing devices are at least 18 inches from the face of the longitudinal end of the locomotive body. 5. The locomotive according to claim 1, wherein the plurality of aerodynamic drag reducing devices are attached to the handrail. 6. The locomotive according to claim 5, wherein the drag reducing devices are mounted to vertical members of the handrail. 7. The locomotive according to claim 1, wherein the plurality of aerodynamic drag reducing devices comprise curved configurations which concave away from the locomotive body and convex toward the locomotive body. 8. The locomotive according to claim 1, wherein at least one of the plurality of aerodynamic drag reducing devices comprises a configuration of a triangular prism, and wherein at least two sides of the triangular prism comprise curved configurations which concave away from the locomotive body. 9. The locomotive according to claim 1, wherein the walkway is provided at a front, leading end of the locomotive. 10. The locomotive according to claim 1, further comprising a plurality of aerodynamic drag reducing devices attached to an opposite longitudinal end of the locomotive, each drag reducing device being mounted on a corresponding face of the opposite longitudinal end so as to induce laminar flow of air and reduce drag on the locomotive. 11. A method for reducing aerodynamic drag of a locomotive, the locomotive comprising a body; track engaging wheels; a power system in the body for driving the wheels to move the locomotive along a pair of tracks; and a walkway provided at a longitudinal end of the locomotive, the walkway extending to enable lateral passage of a person across the longitudinal end of the locomotive and including a handrail extending vertically and laterally in a spaced relation to a face of the longitudinal end of the locomotive; the method comprising: mounting a plurality of aerodynamic drag reducing devices to the longitudinal end of the locomotive adjacent to the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the locomotive,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive so as to permit lateral passage of a person along the walkway. 12. The method according to claim 11, wherein the mounting of the plurality of aerodynamic drag reducing devices further comprises attaching the drag reducing devices to the handrail. 13. The method according to claim 11, further comprising adjusting an angle of one or more drag reducing devices such that the device extends outwardly and towards the body from a distal edge thereof to a proximal edge thereof. 14. The method according to claim 11, further comprising mounting a plurality of aerodynamic drag reducing devices to an opposite longitudinal end of the locomotive, each drag reducing device being mounted on a corresponding face of the opposite longitudinal end so as to induce laminar flow of air and reduce drag on the locomotive, and each drag reducing device comprising a curved surface and at least one pair of winglets. 15. A train comprising: at least one locomotive, the at least one locomotive comprising a body and track engaging wheels;a series of cars with wheels, the series comprising at least a first car and a second car;the at least one locomotive configured to assist in moving the series of cars;a power system for driving the track engaging wheels of the locomotive to move the locomotive and the series of cars along a pair of tracks;a walkway provided at a longitudinal end of the locomotive, the walkway extending to enable lateral passage of a person across the longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached to the longitudinal end of the locomotive adjacent to the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the train,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway. 16. The train according to claim 15, wherein a locomotive is directly attached to the first car. 17. The train according to claim 15, wherein a plurality of locomotives are provided in the train, and wherein the at least one locomotive is provided between the first car and the second car. 18. The train according to claim 15, wherein the drag reducing devices are positioned at an angle such that each drag reducing device extends outwardly and towards the body of the locomotive from a distal edge thereof to a proximal edge thereof. 19. The train according to claim 18, wherein the angle for positioning each of the drag reducing devices is adjustable. 20. The train according to claim 15, wherein the plurality of aerodynamic drag reducing devices are attached to the handrail of the locomotive. 21. The train according to claim 15, wherein plurality of aerodynamic drag reducing devices comprise curved configurations which concave away from the locomotive body and convex toward the locomotive body. 22. The train according to claim 15, wherein at least one of the plurality of aerodynamic drag reducing devices comprises a configuration of a triangular prism, and wherein at least two sides of the triangular prism comprise curved configurations which concave away from the locomotive body. 23. The train according to claim 15, wherein the walkway is provided at a front, leading end of the locomotive. 24. The train according to claim 15, further comprising a plurality of aerodynamic drag reducing devices attached to an opposite longitudinal end of the locomotive body, each drag reducing device being mounted on a corresponding face of the opposite longitudinal end so as to induce laminar flow of air and reduce drag on the locomotive, and each drag reducing device comprising a curved surface and at least one pair of winglets. 25. A locomotive comprising: a body;track engaging wheels;a power system in the body for driving the wheels to move the locomotive along a pair of tracks;a walkway provided at a longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached adjacent the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the locomotive,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway, and wherein each of the plurality of aerodynamic drag reducing devices are attached to the walkway using separately mountable assemblies. 26. A locomotive comprising: a body;track engaging wheels;a power system in the body for driving the wheels to move the locomotive along a pair of tracks;a walkway provided at a longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached adjacent the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the locomotive,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway, wherein the plurality of aerodynamic drag reducing devices are attached to the walkway using a single mountable frame assembly, the plurality of aerodynamic drag reducing devices being mounted to the frame assembly, and wherein the frame assembly is mounted with respect to the handrail. 27. The locomotive according to claim 10, wherein each of the plurality of aerodynamic drag reducing devices on the corresponding face comprise a curved surface and at least one pair of winglets for inducing laminar flow of air and reducing drag on the locomotive. 28. The locomotive according to claim 27, wherein the winglets are mounted at an angle relative to each other such that a distance between proximal ends of the winglets is smaller than a distance between distal ends of the winglets. 29. A train comprising: at least one locomotive, the at least one locomotive comprising a body and track engaging wheels;a series of cars with wheels, the series comprising at least a first car and a second car;the at least one locomotive configured to assist in moving the series of cars;a power system for driving the track engaging wheels of the locomotive to move the locomotive and the series of cars along a pair of tracks;a walkway provided at a longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached to the longitudinal end of the locomotive adjacent the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the train,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway, and wherein each of the plurality of aerodynamic drag reducing devices are attached to the walkway using separately mountable assemblies. 30. A train comprising: at least one locomotive, the at least one locomotive comprising a body and track engaging wheels;a series of cars with wheels, the series comprising at least a first car and a second car;the at least one locomotive configured to assist in moving the series of cars;a power system for driving the track engaging wheels of the locomotive to move the locomotive and the series of cars along a pair of tracks;a walkway provided at a longitudinal end of the locomotive;a handrail extending vertically and laterally along the walkway in a spaced relation to a face of the longitudinal end of the locomotive body for grasping by a person on the walkway;a plurality of aerodynamic drag reducing devices attached to the longitudinal end of the locomotive adjacent the walkway, each drag reducing device being positioned with respect to a centerline of the locomotive so as to reduce drag on the train,wherein the aerodynamic drag reducing devices are in a spaced relation to the face of the longitudinal end of the locomotive body so as to permit lateral passage of a person along the walkway, wherein the plurality of aerodynamic drag reducing devices are attached to the walkway using a single mountable frame assembly, the plurality of aerodynamic drag reducing devices being mounted to the frame assembly, and wherein the frame assembly is mounted with respect to the handrail. 31. A system for reducing aerodynamic drag of a locomotive, the locomotive configured to pull a series of cars along a track; the locomotive comprising a body with a front end and a back end and a walkway adjacent at least the front end, the walkway extending to enable lateral passage of a person across the longitudinal end of the locomotive, the system comprising: a plurality of aerodynamic drag reducing devices, each drag reducing device comprising a drag reducing fairing configured to reduce aerodynamic drag when the locomotive is in motion; andwherein the plurality of aerodynamic drag reducing devices are configured to be mounted to the locomotive on at least the front end adjacent to the walkway. 32. The system according to claim 31, wherein the front end of the locomotive includes a front face, and wherein the plurality of aerodynamic drag reducing devices are provided on a front face thereof. 33. A system according to claim 31, wherein each of the plurality of aerodynamic drag reducing devices further comprises winglet pairs for assisting in directing movement of air when the locomotive is in motion.
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