High pressure direct fuel injection circuit for motor vehicle, has deformations interposed between male span of high pressure fuel ducts and female span of fuel pump, common rail and fuel injector for provoking reduction of fuel flow rate

摘要

The circuit has a low pressure fuel duct connecting a fuel tank to a fuel pump, and a high pressure fuel duct (22) connecting the pump to a common rail. A high pressure fuel duct (24) connects the rail to a fuel injector. Deformations (44) are interposed between a male span of the high pressure fuel ducts and a female span of the pump, rail and injector for provoking a determined reduction of fuel flow rate.