• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A meter prover comprises a cylinder (16) having a proving bore (22) and enlarged end chambers (20). A piston (12) is mounted within the cylider for movement along the bore in sealed engagement therewith, the axial length of the piston exceeding that of the enlarged end chamber. When the piston is at rest in the end chamber, fluid can pass through a continuously open passage in the piston. This passage preferably takes the form of apertures (24) in an annular wall portion (36). When the piston is moved out of the end chamber, flow through the passage is no longer possible and the piston continues in synchronism with the fluid flow. At the end of the proving run, the progressive closing of the apertures provides a fluid damping effect to arrest the piston.
    公开号:SU1443815A3
    申请号:SU833656482
    申请日:1983-10-14
    公开日:1988-12-07
    发明作者:Маурер Роберт
    申请人:Скелтон Лимитед (Фирма)；
    IPC主号:
    专利说明:

    114
    The invention is intended for the calibration of fluid meters and can be used in instrument engineering, oil and aircraft industry.
    The aim of the invention is to improve the operational and metrological characteristics of the installation.
    Figure 1 shows an installation for calibration of meters; h, figure 2 - installation pershen.
    Installation 1 for calibration of meters (figure 1) contains a piston 2 located in cylinder 3 and rigidly attached to rod 4. At both ends of cylinder 3, two end chambers 5 with a diameter greater than the diameter of the measuring middle part 6 of the cylinder are made on its inner surface 3. Between the end chambers 5 and the ends of the cylinder 3 there are braking sections 7. Both end chambers 5 are connected by pipelines 8 through a four-way valve 9 with a rotary counter 10. Pipe branch branches 11 are used during calibration of the calibration installation.
    The piston 2 (FIG. 2) is made in the form of a length of pipe 12 with a central partition 13. On the outer surface of the piston there are two annular cavities. 14 on each side of the central partition 13 of the piston 2 in the pipe 12 are rectangular holes 15, evenly spaced around the circumference of the piston. The axial size of the piston 2 exceeds the axial size of the cantilever chamber 5.
    The installation works as follows.
    At the initial moment of time in the position indicated in Fig. 1, the fluid freely passes through the rectangular orifices 15 of the piston located in the end chamber 5, the piston moves out of the equilibrium position and starts moving to the right. The area of the rectangular orifices through which it passes
    .2
    the liquid decreases until the middle part of the piston 2 enters the measuring part 6 of the cylinder 3 and the liquid stops passing through the rectangular orifices 15. The piston begins to move with the speed of the liquid through the cylinder. Measurement begins When the piston reaches the other end chamber, the measurement ends. The piston 2 enters the other end chamber. At the same time, through the rectangular holes 15, the liquid from the decelerating sections 7 begins to exit through the pipeline 8. As the cross-sectional area of the rectangular holes-15 connected to the braking section 7 decreases, the piston stops damping,
    When switching the four-way valve 9, the movement of the piston similarly occurs in the opposite direction.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    An installation for calibration of counters, comprising a cylinder with a measuring section and two end chambers located on opposite sides of the measuring section, having a diameter greater than the diameter of this section and communicating through pipelines with checkable meters, as well as a packed piston freely located in cylinder, characterized in that, in order to improve the operational and metrological characteristics of the installation, the cylinder is provided with two braking regions located between the ends of the cylinder and end evymi chambers, the piston vtolnen as a tube segment with a central partition and side windows on both sides thereof, wherein the axial dimension of the piston is greater than the axial dimension of the end chamber.
    Vil
    fll8.2
    类似技术:
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    同族专利:
    公开号 | 公开日
    US4628724A|1986-12-16|
    JPS59500185A|1984-02-02|
    WO1983002825A1|1983-08-18|
    AU1228383A|1983-08-25|
    EP0100352A1|1984-02-15|
    NO833727L|1983-10-13|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3492856A|1968-09-06|1970-02-03|Flow Tech|Apparatus for determining the flow characteristics of a volumetric flowmeter|
    GB1457490A|1975-07-11|1976-12-01|Grove M H|Sphere launcher and meter prover apparatus|
    US4152922A|1978-05-19|1979-05-08|Flow Technology, Inc.|Apparatus and method for determining the characteristic of a flowmeter|
    FR2468890B1|1979-11-05|1981-11-06|Mestrole Mesure Controle Autom|
    FR2471590A1|1979-12-10|1981-06-19|Sam Ste Nle|meter calibration system for hydrocarbon liquids - has piston travelling along tube past two proximity indicators to provide accurate vol. of liq. fed through meter|
    FR2481449A1|1980-04-29|1981-10-30|Sereg Soc|Flow control system for calibrating turbine flow counter - uses pulses from counter to operate electro-valves to initiate and stop measuring circuit|
    US4372147A|1981-03-17|1983-02-08|Waugh Controls Corporation|Flow meter prover apparatus and method|
    US4481805A|1981-06-03|1984-11-13|F. H. Maloney Company|Meter prover apparatus and method|US4794785A|1981-07-27|1989-01-03|Flow Technology, Inc.|Apparatus for determining the characteristic of a flowmeter|
    IT1233249B|1982-11-26|1992-03-24|Skeltonhall Ltd|TEST DEVICE IN PARTICULAR FOR THE TEST OF ROTATING FLOWMETERS|
    US4549426A|1983-10-28|1985-10-29|Smith Meter, Inc.|Compact flow prover|
    US4569220A|1984-08-16|1986-02-11|Smith Meter, Inc.|Flow prover with seal monitor|
    GB8513783D0|1985-05-31|1985-07-03|Skeltonhall Ltd|Meter provers|
    US4718267A|1986-08-18|1988-01-12|Graham Capper|Meter provers|
    US4831866A|1987-11-09|1989-05-23|Tokheim Corporation|Automatic meter proving and calibration system|
    US5052211A|1988-10-19|1991-10-01|Calibron Systems, Inc.|Apparatus for determining the characteristic of a flowmeter|
    US5052212A|1988-10-19|1991-10-01|Calibron Systems, Inc.|Dynamic leak detector|
    WO1990004757A1|1988-10-19|1990-05-03|Calibron Systems, Inc.|Dynamic leak detector|
    FR2653223B1|1989-10-17|1992-01-17|Mesure Controle Automatisme|METHOD AND DEVICE FOR CALIBRATING A VOLUMETRIC COUNTER OF ANY LIQUID PRODUCTS.|
    US7475586B2|2006-04-07|2009-01-13|Total Meter Services Inc.|Flow meter calibration apparatus and method|
    US7650775B2|2008-01-10|2010-01-26|Flow Management Devices, Llc|Unidirectional captive displacement prover|
    US8161791B2|2008-01-10|2012-04-24|Flow Management Devices, Llc|Prover self testing and validation apparatus|
    RU2607722C1|2011-10-14|2017-01-10|ДЭНИЭЛ МЕЖЕМЕНТ энд КОНТРОЛ, ИНК.|Low-temperature calibration device and method of its application|
    JP5645285B1|2013-08-28|2014-12-24|株式会社オーバル|Piston prober|
    US10228309B2|2015-12-18|2019-03-12|Savant Measurement Corporation|Hybrid product sampling system|
    US10809110B2|2018-04-05|2020-10-20|Meter Engineers, Inc.|Flow meter prover|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    GB8204529|1982-02-16|
    GB8212883|1982-05-13|
    GB8218825|1982-06-29|
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