Patent ID: 9279403
Filing Date: 2016-03-08
CPC Classification: F02M

Claim Text:
1. A closure bolt for an injector of a modular common-rail fuel injection system, comprising: at least one high-pressure port formed in the closure bolt for high-pressure fuel; a bolt-like portion configured to be inserted into an opening of the injector, the bolt-like portion having (i) a first sealing surface configured to close the opening in a high-pressure-tight manner and (ii) a high-pressure bore which is hydraulically connected to the high-pressure port and which issues into the injector; and a throughflow limiter configured to limit a flow rate of fuel delivered into the injector, wherein the bolt-like portion has an insert in which the throughflow limiter is formed and which bears the first sealing surface, wherein an axial portion of the insert is received in a receiving bore of the bolt-like portion, the axial portion of the insert defining a passage, and wherein the axial portion of the insert is configured to be acted on with pressure of the high-pressure fuel from outside the axial portion of the insert and from inside the passage defined by the axial portion of the insert.