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Innovative eco friendly traps for the control of
Pine Lepidoptera in urban and recreational places


Type of information: PATENTS

In this section, you can access to the latest technical information related to the PISA project topic.

Control Arrangement For A Frequency-Dependent Damping Valve Device Of A Vibration Damper And Method For Plastic Deformation Of The Pot Floor Of The Control Arrangement

A control arrangement for a frequency-dependent damping valve having a control pot and an axaially displaceable control piston that axially limits a control space in the control pot and is connected to the damping valve device via an inlet connection. A spring element is arranged between the control piston and the damping valve that introduces a spring force axially into the control piston and the damping valve. When the control piston displaces towards the damping valve and the spring element increases the pressing pressure of the valve disks to increase the damping force. An axial position of a stop in the control arrangement is adjusted by plastic deformation of the pot base. A deformation portion produced by the plastic deformation and a depression partially receives the guide bush. A cross section of the depression corresponds to an outer cross section of the guide bush received in the depression.

» Number: US2018313425A1 (A1)

» Publication Date: 18//2/01/1



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