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AssigneeCaterpillar Inc.
InventorsCharles H. Dutart, Eric C. Fluga
Estimating the term…
An apparatus and method for causing a fuel injector to overcome its inherent fuel injection pressure threshold long enough to completely inject a predetermined volume of fuel during each fuel shot associated with a particular fuel injection event. The fuel injector is in electrical communication with an electronic controller for receiving control signals of pre-calculated timing and duration therefrom. Furthermore, the fuel injector is in mechanical communication with a cam follower. A camshaft has a cam profile in mechanical communication with the cam follower, the cam profile including at least one lobe operable to generate pressure within the fuel injector sufficient to overcome the fuel injection pressure threshold in predetermined intervals in conjunction with the control signal of the electronic controller.
A fuel injection control system for regulating the injection duration of a fuel shot associated with a multi shot injection event of a fuel injector, the fuel injector having an inherent fuel injection pressure threshold and being in mechanical communication with a cam follower, the system comprising:
A camshaft for use with a fuel injection control system having a fuel injector, the fuel injector having a cam follower and having an inherent fuel injection pressure threshold, the fuel injector being in electrical communication with an electronic controller for receiving a calculated control signal therefrom during each fuel shot associated with a particular fuel injection event, the camshaft comprising:
A method for causing a fuel injector to inject a predetermined volume of fuel during fuel shot associated with a particular fuel injection event, the fuel injector being in electrical communication with an electronic controller for receiving control signals of established timing and duration therefrom, the fuel injector further being in mechanical communication with a cam follower, the fuel injector having an inherent fuel injection pressure threshold, the method comprising the step of:
Dependencies are inferred from the claim text.