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Volumetric Leak Test Stand

With this test stand, the volume of combustion chambers can be accurately determined (±0.1 cm³). The test medium is air, and the measurement is a differential pressure. An exact quantity of air is introduced into the test cavity from a reference chamber. The resultant pressure after expansion is a precise parameter of the size of the volume to be measured. Either the absolute volume or the deviation from a nominal volume can be measured and displayed.

One of the major fields of application is to determine the size of combustion chambers in cylinder heads. Others are the piston crown volume and the cavity size of viscous-couplings. JWF volumetric measuring stands can be equipped with a temperature compensation system. (patent DBP DE 321949 C2)