| 摘要 |
PROBLEM TO BE SOLVED: To easily materialize geometry of a throughflow limiter without impairing pressure resistance properties in a pressure compensation region of a closure bolt.SOLUTION: A closure bolt 5 for an injector of a modular common-rail fuel injection system includes at least one high-pressure connection part 20 for high-pressure fuel and a bolt-like portion 4 which is configured to be inserted into an opening 3 of the injector and which has a first, particularly conical, sealing surface 6 for closing the opening 3 in a high-pressure-tight manner. The bolt-like portion 4 has a high-pressure bore 11 which is hydraulically connected to the high-pressure connection part 20 and which is in communication with the injector. The closure bolt further includes a throughflow limiter 16 configured to limit the flow rate of fuel delivered into the injector. The bolt-like portion 4 has an insert 24 in which the throughflow limiter 16 is formed and which bears the first sealing surface 6. |
