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31. A plunger type quantitative lead pump belongs to the technology field of special pumps and is used for solving the problems with the lead pump, including high rate of wear and short service life.

32. In order to verify the performance of fracturing truck and plunger pump, bench test, final assembly test and field industrial test should be performed.

33. With the application of PCS intelligence plunger lift technique, the gas wells renew their production without any additional power.

34. FIGURE 6. Within a spring contact system, the points of transfer are where the tip meets the target, where the barrel and plunger meet, and where the barrel meets the printed circuit board.

35. The solenoid plunger pulls the vent valve down, blocking off the passage to the charcoal canister.

36. For assuring the maximum flow area at outlet of plunger, the outlet runner of plunger is supposed to be streamline, which would lower the flow resistance at outlet plunger.

37. The technologies of sintering, composite coating, punching plunger extruding, cold stretch and hot shrinkage, supercritical CO2-assisted extruding for PTFE are introduced.

38. The centrifugal force developed by the rotating flyweight sis translated into an upward force that lifts the plunger.

39. The plunger is seized in its guide ( sleeve ) .

40. With the car upside - down, the ball forces the plunger to seat against the guide plate.

41. The utility model discloses a special-shaped pipe expanding plunger chip and relates to a special-shaped pipe shaping tool.

42. Herefrom, the influence of plunger diameter and helical angle on dynamic process of engine speed adjusting system is emphatically analysed by means of computer simulation.

43. The clearance between plunger and barrel of a pump is a key parameter for the pump.

44. Subject unmated connector shall be mounted in a position of axial alignment of the contacts with the plunger of the test gauge to measure the withstand ability of the contact retaining system.

45. The calculating equation of the relative rotating angle in the leakage test of plunger and barrel assembly has been deduced by the geometric method.

46. Vaporisation from the needle on initial entry of the syringe into the injector, before the syringe plunger is depressed, can result in partial loss of high boiling components.

47. The effect, principle, application range, parameter analysis, design and well selection of an intelligent plunger gas lifting system are systematically studied.

48. The travelling valve of the pump is designed to be closed and opened forcibly, and the pump plunger adopts equal-diameter bare pipe with a floating structure to prevent gas lock and sand sticking.

49. Only by reasonably matching the factors can plunger gas lift be done normally.

50. The aim of the utility model is to design a special-shaped pipe expanding plunger chip with high pipe expanding efficiency and good quality.

51. TheNewcastleUniversityresearcher says the device works by pushing down the plunger, which opens a valve and mixes neutralizer moments before an injection is administered.

52. So as to enhance the life of the plunger valve.

53. The optimal effective thermal efficiency working zone and optimal effective thermal efficiency curve are defined and compared with traditional internal combustion engine driving plunger pump.

54. The utility model can efficiently prevent air locking phenomena and the eccentric wear of the plunger, increase the production quantity of raw oil and extend the service life of the oil well pump.

55. R 2 is the point of signal transfer between plunger and barrel.

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56. In addition, the completed programming has been used to analysis the influence of main-depute powder proportion, ignition delay of depute power and plunger mass on interior performance.

57. Consider an automation project that gathers wellhead data and controls the plunger lift cycles.

58. The formula for calculating the liquid shock load in the low sinking depth wells was set up, and the formula for the axial load in the down stroke of the plunger was established.

59. The position of the plunger cylinder is measured by a linear position transducer.

60. Riveting principle, plunger die str uctur e design and riveting process utilized in motor stator core superpose press are introduced and sums up the applying results.