Patent ID: 8210048
Filing Date: 2012-07-03
Classification: F16J,G01L

Abstract:
1. A pressure transfer device, comprising: a pressure transfer device body having a surface; and an isolating diaphragm, which is pressure-tightly connected with said device body along a circumferential sealing surface, wherein: between the surface of said device body and said isolating diaphragm, a pressure chamber is formed, whose volume is dependent on the position of said isolating diaphragm; said isolating diaphragm has a material thickness h and a deflectable working region of area A bordered by said circumferential sealing surface; said isolating diaphragm has an embossed contour; said isolating diaphragm has a reference position, in which said pressure chamber contains a reference volume V said isolating diaphragm is deflectable from the reference position at least so far in two directions, that the volume of the pressure chamber can be varied between values of up to V associated with a volume change ΔV is a dimensionless deflection measure w, which is defined as w(ΔV):=(3·ΔV)/(A·h); ΔV in case of all w(ΔV), for which |w(ΔV)|≦|w′(ΔV)|, |w′(ΔV)≧0.5·|w(ΔV the deflection of the non-axisymmetric deflection mode, in case of |w(ΔV)|=0.4·|w(ΔV