For a wide range of flow rates, the new OP produces multiform spray shapes containing finely atomized, homogeneously distributed droplets. should be calculated using a primary flow element calculation software.
FLOW CALCULATION SOFTWARE ORIFICE PLATE THICKNESS ISO
A suitable OP manufacturing method is illustrated. Referring to ISO 5167-2, determines standard orifice plate thickness as the.
1 Sec 1.5 Calculates the effect of Orifice plate bending due to the differential pressure. This paper describes the new OP's design development achieved through engine tests, flow simulations and experimental spray tests. Orifice Plate Deflection & Uncertainty BS1042: 1987 Pt. The flow cavities and outer dimensions of each layer are shaped by photo-resist structures. A great variety and a high volume of precisely structured, low cost OPs can be produced daily by micromachining the layers in electroformed nickel. The flow deflections effect atomization and define the spatial spray beam orientation. To generate the suitable spray characteristics, the basic OP design and its flow characteristics have some features originating from the well known turbulence nozzle principle: Turbulence generating flow deflections within the OP are achieved by superimposing layers containing flow cavities, which are displaced from one another. Exclusive engineering features include continual checks for Cavitation or Flashing Flows, Critical (Choked) Flow-Rate Computations, Restrictive Orifice. The OP is designed to optimize the air-fuel mixture generation and transportation within individually shaped manifold geometries of spark-ignition engines. A new orifice plate (OP) for advanced fuel injection characteristics is presented.
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