F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
F02M 51/06 (2006.01) F02D 41/20 (2006.01) F02D 41/30 (2006.01)
Patent
CA 2352519
A fuel injector for injecting fuel into a combustion chamber of an internal combustion engine has a body containing a mechanism that is operable to cause fuel to be injected out of the body and into the combustion chamber. An electric actuator operates the mechanism to initiate a fuel injection from the body when an initiating electric signal for initiating a fuel injection is applied to the electric actuator and to terminate the fuel injection when the electric signal changes to a terminating electric signal for terminating the fuel injection. The injector has an identity circuit that possesses an identity characteristic identifying a calibration category into which the fuel injector has been previously categorized based on data obtained from actual operation of the fuel injector. In some embodiments the identity circuit is electrically connected in shunt with the electric actuator and imposes no significant effect on the response of the fuel injector to the initiating and terminating electric signals. In others, it is connected between engine ground and one actuator terminal.
Grassi Robert P.
Oleksiewicz Radek A.
Schmidt Robert A.
Finlayson & Singlehurst
International Truck And Engine Corporation
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