Piezo actuator sealing arrangement for fuel injector, has sealing unit lying in peripheral surface of terminal pin sections and with ventilation opening in which end of ventilation channel arrangement intervenes for ventilation of actuator

摘要

The arrangement has terminal pins (12), and a sealing unit (30) formed from a sealing material and attached at terminal pin sections (22). The sealing unit lies in a peripheral surface of the terminal pin sections and in a head arrangement. The sealing unit has a ventilation opening (34) in which an end of a ventilation channel arrangement (26) intervenes for ventilation of a piezo actuator. An independent claim is also included for a method for assembling of a fuel injector of an internal combustion engine.