Method for mounting a contact pin for a piezoelectric...

Details Method for mounting a contact pin for a piezoelectric... Method for mounting a contact pin for a piezoelectric...

2005-02-23

2009-02-24

Dougherty, Thomas M (Department: 2834)

Electrical generator or motor structure

Non-dynamoelectric

Piezoelectric elements and devices

Reexamination Certificate

active

07495372

ABSTRACT:
During the production of an actuator unit (11), which is to be installed in a fuel injector, a piezoelectric element (8) is firstly inserted into a plastic sleeve (1). Two contact pins (5) are provided for the external power supply for the piezoelectric element (8), and are guided outside the plastic sleeve (1). In order to fix the position of the contact pins (5), particularly before encapsulating the piezoelectric element (8) with the plastic sleeve (1), pin mounts (2) provided in the form of detent connections are provided for the contact pins (5). The detent connections (2) are designed for fixing the contact pins (5) in the position thereof after they have been inserted into these detent connections. In one particular embodiment, the plastic sleeve (1) is provided in the form of a one-piece hollow body so that the mounting can be effected in a particularly simple manner.

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International Search Report and Written Opinion for International Patent Application No. PCT/EP2005/050774 (17 pages), May 11, 2005.

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