Punch Powertrain N.v.

Stefan Hubertus Godelieve Van Raemdonck

Peter Mark Smid

A hydraulic system for a multiple friction transmission, comprising: a first pressure relief valveregulable by means of a first pilot pressure; a normally-open drain valve, which is a directional valve switchable between an open state and a closed state by means of a second pilot pressure; at least one first pressure regulatorfor operating the drain valve by means of a first pilot pressure and a second pilot pressure, respectively; wherein in the event of detrimental hydraulic pressure build up, the second pilot pressure is dropped to open the drain valve, so as to relieve pressure through the drain line.

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Sint-Truiden, Belgium

Stefan Hubertus Godelieve Van Raemdonck