Device for the translation of a displacement of an actuator,...

Details Device for the translation of a displacement of an actuator,... Device for the translation of a displacement of an actuator,...

2006-07-18

2006-07-18

Bastianelli, John (Department: 3751)

Valves and valve actuation

Fluid actuated or retarded

Dashpot or fluid controlled retarder or timer

C251S057000

Reexamination Certificate

active

07077377

ABSTRACT:
A device, for the translation of a displacement of an actuator, in particular for an injection valve, essentially comprises two counter-displaceable pistons, coupled together by means of a translational chamber in a play-free manner. The translation chamber is filled with a translation medium and is connected to an equalization chamber by means of a sealing gap. The sealing gap only equalizes pressure differences between the translation chamber and the equalization chamber which are of long duration. One of the two pistons is pre-tensioned in a starting position by means of an externally arranged spring. A reduction in the dead volume between the pistons is possible as a result of the arrangement of the spring outside the piston.

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