| 摘要 |
An anti-friction layer (19) is provided between the second part of the injector (1) and the stop surface (10) of a cap nut (9) joining the second part to a first part of the injector, so that torque transfer to the positioning pin (7) is reduced when the nut is pulled out. The injector comprises first and second parts joined together by a cap nut screwed into the first part and having its stop surface engaging with the second part. A positioning pin (7) is used to fix the angle between the two parts. An electrically insulating layer (17) insulates the two parts from each other and prevents electrical contact between the pin and one of these parts. A nozzle needle (6) can be moved along a channel inside the two parts in order to open and close the channel. When the channel is open, the two parts are not in electrical contact with each other, but when the channel is closed by the needle, these parts are then in electrical contact. |
