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1. WO2002046613 - IMPROVED RODLESS PUMPING SYSTEM

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[ EN ]

CLAIMS
What is claimed is:

1. A rodless pump assembly for pumping fluid from a fluid reservoir connected via a

conduit to a operational pressure source, the rodless pump being responsive to the application

of pressure on fluid within the conduit by the operational pressure source, said pump assembly

comprising:

a housing connected at the lower end of a conduit and positioned within a fluid to be

transported through said conduit;

a plunger assembly movably disposed within said housing, said assembly movable in a

first direction responsive to pressure applied to fluid in said conduit for drawing

fluid into said housing;

a pressure chamber formed within said housing above said plunger assembly containing

a substantially compressible fluid therein for moving said plunger assembly in a

second direction when pressure is released from said fluid in said conduit wherein

fluid from said reservoir drawn into said housing is produced into said housing;

and

a dampening mechanism connected to said plunger assembly wherein impact between

said plunger moving in said first direction and a portion of said housing is

reduced.

2. The rodless pump of Claim 1 , further including:

a second dampening mechanism connected to said plunger assembly wherein impact

between said plunger moving in said second direction and a portion of said

housing is reduced.

3. The rodless pump of Claim 1, wherein:
said dampening mechanism includes an upper dampener comiected to said plunger assembly; and
an upper dampener chamber formed by said housing shaped so as to fit said upper dampener substantially therein.

4. The rodless pump of Claim 3, further including:
a slot formed along at least a portion of said upper dampener. '

5. The rodless pump of Claim 2, wherein:
said second dampening mechanism includes a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

6. The rodless pump of Claim 5, further including:
a slot formed along at least a portion of said lower dampener.

7. The rodless pump of Claim 3, further including:
a second dampening mechanism having a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

8. The rodless pump of Claim 7, further including:
a slot formed along at least a portion of said lower dampener.

9. The rodless pump of Claim 4, further including:
a second dampening mechanism having a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

10. The rodless pump of Claim 9, further including:
a slot formed along at least a portion of said lower dampener.

11. The rodless pump of Claim 1, further including:

a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

12. The rodless pump of Claim 2, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

13. The rodless pump of Claim 3, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

14. The rodless pump of Claim 4, further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

15. The rodless pump of Claim 5, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

16. The rodless pump of Claim 6, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

17. The rodless pump of Claim 7, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

18. The rodless pump of Claim 8, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

19. The rodless pump of Claim 9, further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

20. The rodless pump of Claim 10, further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

21. The rodless pump of Claim 13, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

22. The rodless pump of Claim 14, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

23. The rodless pump of Claim 15, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

24. The rodless pump of Claim 16, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

25. The rodless pump of Claim 17, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

26. The rodless pump of Claim 18, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

27. The rodless pump of Claim 19, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

28. The rodless pump of Claim 20, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

29. A rodless pump assembly for pumping fluid from a fluid reservoir connected via a conduit to a operational pressure source, the rodless pump being responsive to the application of pressure on fluid within the conduit by the operational pressure source, said pump assembly comprising:
a housing comiected at the lower end of a conduit and positioned within a fluid to be transported through said conduit, said housing including a lower banel section extending from said housing and an upper banel section located within said housing;
a plunger assembly movably disposed within said upper and lower banel of said housing, said assembly movable in a first direction responsive to pressure applied to fluid in said conduit for drawing fluid into said housing;
a pressure chamber formed within said housing above said plunger assembly containing a substantially compressible fluid therein for moving said plunger assembly in a second direction when pressure is released from said fluid in said conduit wherein fluid from said reservoir drawn into said housing is produced into said housing; an upper dampening mechanism connected to said plunger assembly wherein impact between said plunger moving in said first direction and a portion of said housing upper banel is reduced; and
a lower dampening mechanism connected to said plunger assembly wherein impact between said plunger moving in said second direction and a portion of said housing is reduced.

30. The rodless pump of Claim 29, wherein:
said upper dampening mechanism includes an upper dampener connected to said plunger assembly; and
an upper dampener chamber formed by said upper barrel of said housing shaped so as to fit said upper dampener substantially therein.

31. The rodless pump of Claim 30, further including:
a slot formed along at least a portion of said upper dampener.

32. The rodless pump of Claim 29, wherein:
said lower dampening mechanism includes a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

33. The rodless pump of Claim 30, wherein:
said lower dampening mechanism includes a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

34. The rodless pump of Claim 31 , wherein:
said lower dampening mechanism includes a lower dampener connected to said plunger assembly; and a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

35. The rodless pump of Claim 32, further including:
a slot formed along at least a portion of said lower dampener.

36. The rodless pump of Claim 33, further including:
a slot formed along at least a portion of said lower dampener.

37. The rodless pump of Claim 34, further including:
a slot formed along at least a portion of said lower dampener.

38. The rodless pump of Claim 29, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

39. The rodless pump of Claim 30, further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

40. The rodless pump of Claim 31 , further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

41. The rodless pump of Claim 32, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

42. The rodless pump of Claim 33, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

43. The rodless pump of Claim 34, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

44. The rodless pump of Claim 35, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

45. The rodless pump of Claim 36, further including:
a banier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

46. The rodless pump of Claim 37, further including:
a barrier fluid contained within said housing and substantially between said pressure chamber and said plunger assembly.

47. The rodless pump of Claim 38, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

48. The rodless pump of Claim 39, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

49. The rodless pump of Claim 40, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

50. The rodless pump of Claim 41 , further including:
at least one banier movably positioned between said pressure chamber and said plunger.

51. The rodless pump of Claim 42, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

52. The rodless pump of Claim 43, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

53. The rodless pump of Claim 44, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

54. The rodless pump of Claim 45, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

55. The rodless pump of Claim 46, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

56. The rodless pump of Claim 40, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

57. The rodless pump of Claim 42, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

58. The rodless pump of Claim 44, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

59. The rodless pump of Claim 46, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

60. A rodless pump assembly for pumping fluid from a fluid reservoir connected via a conduit to a operational pressure source, the rodless pump being responsive to the application of pressure on fluid within the conduit by the operational pressure source, said pump assembly comprising:
a housing connected at the lower end of a conduit and positioned within a fluid to be transported through said conduit, said housing including a lower banel section extending from said housing and an upper banel section located within said housing;
a plunger assembly movably disposed within said upper and lower banel of said housing, said assembly movable in a first direction responsive to pressure applied to fluid in said conduit for drawing fluid into said housing;
a pressure chamber formed within said housing above said plunger assembly containing a substantially compressible fluid therein for moving said plunger assembly in a second direction when pressure is released from said fluid in said conduit wherein fluid from said reservoir drawn into said housing is produced into said housing; a banier fluid substantially contained within a chamber formed within said upper banel of said housing between said pressure chamber and said plunger assembly;
an upper dampening mechanism connected to said plunger assembly wherein impact between said plunger moving in said first direction and a portion of said housing upper banel is reduced; and
a lower dampening mechanism connected to said plunger assembly wherein impact between said plunger moving in said second direction and a portion of said housing is reduced.

61. The rodless pump of Claim 60, wherein: said upper dampening mechanism includes an upper dampener connected to said plunger assembly; and
an upper dampener chamber formed by said upper banel of said housing shaped so as to fit said upper dampener substantially therein.

62. The rodless pump of Claim 61 , further including:
a slot formed along at least a portion of said upper dampener.

63. The rodless pump of Claim 60, wherein:
said lower dampening mechanism includes a lower dampener connected to said plunger assembly; and
a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

64. The rodless pump of Claim 63, further including:
a slot formed along at least a portion of said lower dampener.

65. The rodless pump of Claim 60, wherein:
said upper dampening mechanism includes an upper dampener connected to said plunger assembly;
an upper dampener chamber formed by said upper banel of said housing shaped so as to fit said upper dampener substantially therein;
said lower dampening mechanism includes a lower dampener connected to said plunger assembly; and a lower dampener chamber formed by said housing shaped so as to fit said lower dampener substantially therein.

66. The rodless pump of Claim 60, further including:
at least one barrier movably positioned between said pressure chamber and said plunger.

67. The rodless pump of Claim 65, further including:
at least one banier movably positioned between said pressure chamber and said plunger.

68. The rodless pump of Claim 60, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

69. The rodless pump of Claim 65, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

70. A rodless pump assembly for pumping fluid from a fluid reservoir connected via a conduit to a operational pressure source, the rodless pump being responsive to the application of pressure on fluid within the conduit by the operational pressure source, said pump assembly comprising:
a housing connected at the lower end of a conduit and positioned within a fluid to be transported tlirough said conduit, said housing including a lower banel section extending from said housing and an upper banel section located within said housing;
a plunger assembly movably disposed within said upper and lower barrel of said housing, said assembly movable in a first direction responsive to pressure applied to fluid in said conduit for drawing fluid into said housing;
a pressure chamber formed within said housing above said plunger assembly containing a substantially compressible fluid therein for moving said plunger assembly in a second direction when pressure is released from said fluid in said conduit wherein fluid from said reservoir drawn into said housing is produced into said housing; at least one banier movably positioned between said pressure chamber and said plunger; a barrier fluid substantially contained within a chamber formed within said upper banel of said housing between said pressure chamber and said plunger assembly; an upper dampening mechanism having an upper dampener connected to said plunger assembly, and an upper dampener chamber formed by said upper barrel of said housing so as to fit said upper dampener substantially therein; and
a lower dampening mechanism having a lower dampener connected to said plunger assembly, and a lower dampener chamber formed by said upper banel of said housing so as to fit said lower dampener substantially therein.

The rodless pump of Claim 70, further including:
a pathway formed at least partially through said plunger; and
a pressure relief mechanism in fluid connection with said pathway for allowing a portion of fluid above said plunger to be expelled to said conduit.

72. The rodless pump of Claim 71 , further including:
a slot formed along at least a portion of said upper dampener.

73. The rodless pump of Claim 71 , further including:
a slot formed along at least a portion of said lower dampener.

74. The rodless pump of Claim 71 , further including:
a slot formed along at leasta portion of said upper dampener; and a slot formed along at least a portion of said lower dampener.