Choix D'une Pompe

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Choix D'une Pompe

  1. 1. CHOIX D’UNE POMPE Copyright  Eaton Hydraulics 2000 Steve Skinner, Eaton Hydraulics, Havant, UK
  2. 2. <ul><li>Displacement </li></ul>PUMP SELECTION FACTORS
  3. 3. FLOW  SIZE & DRIVE SPEED PUMP FLOW RATE America - 1200 / 1800 RPM Mobile - 1200  2500 RPM FLOW Europe - 1000 / 1500 RPM
  4. 4. PUMP DISPLACEMENT 1 revolution
  5. 5. PUMP DISPLACEMENT 1 revolution
  6. 6. PUMP DISPLACEMENT 1 revolution
  7. 7. PUMP DISPLACEMENT 1 revolution
  8. 8. PUMP DISPLACEMENT 1 revolution
  9. 9. PUMP DISPLACEMENT 1 revolution
  10. 10. volume cm 3 SIZE (displacement) = cm 3 / rev PUMP DISPLACEMENT 1 revolution
  11. 11. FLOW = DISPLACEMENT x SPEED PUMP FLOW RATE CALCULATION SPEED = rev / min litres / min = cm 3 / rev x rev / min 1000 FLOW = litres / min DISPLACEMENT = cm 3 / rev
  12. 12. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul>PUMP SELECTION FACTORS
  13. 13. PUMP PRESSURE CAPABILITY
  14. 14. PUMP PRESSURE CAPABILITY  CONTINUOUS INTERMITTENT PEAK P MAX TYPICALLY: INTERMITTENT = 6 sec / min PEAK = 50 mS P MAX t
  15. 15. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul>PUMP SELECTION FACTORS
  16. 16. FIXED / VARIABLE DISPLACEMENT N N FLOW FLOW
  17. 17. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul>PUMP SELECTION FACTORS
  18. 18. OPEN LOOP TRANSMISSION
  19. 19. OPEN LOOP TRANSMISSION
  20. 20. CLOSED LOOP TRANSMISSION
  21. 21. CLOSED LOOP TRANSMISSION
  22. 22. CLOSED LOOP TRANSMISSION
  23. 23. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul>PUMP SELECTION FACTORS
  24. 24. DRIVE SPEED - INDUSTRIAL APPLICATIONS 1200 RPM 60 Hz 1800 RPM 1000 RPM 50 Hz 1500 RPM Q  N N Q
  25. 25. Max Min RPM DRIVE SPEED - MOBILE APPLICATIONS
  26. 26. INDIRECT DRIVE
  27. 27. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul>PUMP SELECTION FACTORS
  28. 28. NOISE LEVEL FACTORS AFFECTING PUMP NOISE LEVEL DISPLACEMENT DRIVE SPEED INT. GEAR VANE PISTON EXT. GEAR TYPE FIXED VARIABLE CONSTRUCTION PRESSURE
  29. 29. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul>PUMP SELECTION FACTORS
  30. 30. 20/18 19/17 18/16 17/15 16/14 100 200 300 ISO CLEANLINESS LEVEL PRESSURE (bar) PUMP CLEANLINESS REQUIREMENTS VARIABLE PISTON FIXED VANE / GEAR VARIABLE VANE / FIXED PISTON
  31. 31. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul>PUMP SELECTION FACTORS
  32. 32. POWER SUPPLY CONTROL ACTUATOR MECHANICAL POWER IN MECHANICAL POWER OUT HYDRAULIC POWER HYDRAULIC POWER AVAILABLE POWER PUMP EFFICIENCY vs SYSTEM EFFICIENCY PIPE LOSSES POWER SUPPLY LOSSES CONTROL LOSSES ACTUATOR LOSSES PUMP LOSSES INPUT OUTPUT HEAT
  33. 33. PUMP LOSSES FLUID FRICTION = FLUID FRICTION LOSSES
  34. 34. PUMP LOSSES FLUID FRICTION MECHANICAL FRICTION = + MECHANICAL FRICTION LOSSES
  35. 35. PUMP LOSSES FLUID FRICTION MECHANICAL FRICTION SLIPPAGE = + + SLIPPAGE
  36. 36. 0 10 20 30 40 50 60 70 80 90 100 50 100 150 200 250 300 350 bar Efficiency TYPICAL PUMP OVERALL EFFICIENCY
  37. 37. TYPICAL VANE PUMP EFFICIENCY 100 kW 80 kW
  38. 38. TYPICAL GEAR PUMP EFFICIENCY 100 kW 85 kW
  39. 39. TYPICAL PISTON PUMP EFFICIENCY 100 kW 90 kW
  40. 40. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul>PUMP SELECTION FACTORS
  41. 41. EFFICIENCY TIME PUMP LIFE MINIMUM GEAR VANE PISTON GEAR PUMP LIFE VANE PUMP LIFE PISTON PUMP LIFE
  42. 42. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul><ul><li>Serviceability </li></ul>PUMP SELECTION FACTORS
  43. 43. PUMP SERVICEABILITY GEAR VANE PISTON
  44. 44. PUMP SERVICEABILITY GEAR VANE PISTON
  45. 45. PUMP SERVICEABILITY GEAR VANE PISTON
  46. 46. PUMP SERVICEABILITY GEAR VANE PISTON
  47. 47. PUMP SERVICEABILITY GEAR VANE PISTON
  48. 48. PUMP SERVICEABILITY GEAR VANE PISTON
  49. 49. PUMP SERVICEABILITY GEAR VANE PISTON
  50. 50. PUMP SERVICEABILITY GEAR VANE PISTON
  51. 51. PUMP SERVICEABILITY GEAR VANE PISTON
  52. 52. PUMP SERVICEABILITY GEAR VANE PISTON
  53. 53. PUMP SERVICEABILITY GEAR VANE PISTON
  54. 54. PUMP SERVICEABILITY GEAR VANE PISTON
  55. 55. PUMP SERVICEABILITY GEAR VANE PISTON
  56. 56. PUMP SERVICEABILITY GEAR VANE PISTON
  57. 57. PUMP SERVICEABILITY GEAR VANE PISTON
  58. 58. PUMP SERVICEABILITY GEAR VANE PISTON
  59. 59. PUMP SERVICEABILITY GEAR VANE PISTON
  60. 60. PUMP SERVICEABILITY GEAR VANE PISTON
  61. 61. PUMP SERVICEABILITY GEAR VANE PISTON
  62. 62. PUMP SERVICEABILITY GEAR VANE PISTON
  63. 63. PUMP SERVICEABILITY GEAR VANE PISTON
  64. 64. PUMP SERVICEABILITY GEAR VANE PISTON
  65. 65. PUMP SERVICEABILITY GEAR VANE PISTON
  66. 66. PUMP SERVICEABILITY GEAR VANE PISTON
  67. 67. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul><ul><li>Serviceability </li></ul><ul><li>Size, shape & weight </li></ul>PUMP SELECTION FACTORS
  68. 68. COMPARATIVE SIZES OF 100 cm 3 /r PUMPS FIXED DISPLACEMENT VARIABLE DISPLACEMENT GEAR PISTON VANE
  69. 69. COMPARATIVE WEIGHTS OF 100 cm 3 /r PUMPS FIXED DISPLACEMENT VARIABLE DISPLACEMENT GEAR PISTON VANE 13 kg 55 kg 33 kg 45 kg 34 kg
  70. 70. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul><ul><li>Serviceability </li></ul><ul><li>Size, shape & weight </li></ul><ul><li>Fluid compatibility </li></ul>PUMP SELECTION FACTORS
  71. 71. FLUID TYPE DE-RATING (Pressure / Drive Speed) PUMP / FLUID COMPATIBILITY
  72. 72. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul><ul><li>Serviceability </li></ul><ul><li>Size, shape & weight </li></ul><ul><li>Fluid compatibility </li></ul><ul><li>Cost </li></ul>PUMP SELECTION FACTORS
  73. 73. 0 50 100 150 200 250 300 350 DISPLACEMENT ( cm 3 / r ) PRICE PUMP COST COMPARISON EXTERNAL GEAR FIXED VANE VARIABLE VANE INTERNAL GEAR VARIABLE PISTON
  74. 74. <ul><li>Displacement </li></ul><ul><li>Maximum pressure capability </li></ul><ul><li>Fixed / variable displacement </li></ul><ul><li>Open loop / closed loop </li></ul><ul><li>Drive capability </li></ul><ul><li>Noise level </li></ul><ul><li>Contamination sensitivity </li></ul><ul><li>Overall efficiency </li></ul><ul><li>Life expectancy </li></ul><ul><li>Serviceability </li></ul><ul><li>Size, shape & weight </li></ul><ul><li>Fluid compatibility </li></ul><ul><li>Cost </li></ul>PUMP SELECTION FACTORS
  75. 75. PUMP SELECTION FACTORS Copyright  Eaton Hydraulics 2000 Steve Skinner, Eaton Hydraulics, Havant, UK

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