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17:40 ics Saal 4
Development of an innovative diaphragm accumulator design and assembly process
Thorsten Hillesheim, Freudenberg Sealing Technologies GmbH & Co. KG, Germany
Freudenberg Sealing Technologies has developed a new concept for the manufacture
of diaphragm accumulators. Its advantages are a reduced need for components, fewer
process steps, shorter assembly times, a higher level of product cleanliness, and an
expansion of the product portfolio into additional fields of application. These diaphragm
accumulators also weigh significantly less. This is opening up new opportunities for
applications in the automotive and industrial fields. The assembly concept is based on
a hermetically sealed pressure chamber in which the joining of the two housing halves
with the help electromagnetic pulse technology (EMPT) as well as the filling of the gas
side with nitrogen takes place in a single operation. In this way, downstream filling to
generate the initial gas charge is no longer necessary.