Fuel injector having algorithm controlled look-ahead timing for injector-ignition operation
AssigneeTransonic Combustion, Inc.
InventorMichael C. Cheiky
Life of this patent
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Abstract
The present invention provides an injector-ignition fuel injection system for an internal combustion engine, comprising an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU uses a one firing cycle look-ahead algorithm for controlling fuel injection. The ECU may further incorporate a look-up table, auto-tuning functions and heuristics to compensate for the rapid rotational de-acceleration that occurs near top dead center in lightweight small ultra-high compression engines as may be used with this invention. The ECU may further ramp heat input to the injector in response to engine acceleration requests and, under such circumstances, may extend its look-ahead for up to four firing cycles.
Claims37
An injector-ignition fuel injection system for dispensing fuel into a combustion chamber of an internal combustion engine, the fuel injection system comprising:
- an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU uses a one firing cycle look-ahead algorithm for controlling fuel injection;
- wherein the heated catalyzed fuel injector comprises:
- an input fuel metering system for dispensing a next fuel charge into a pressurizing chamber;
- a pressurization ram system including a pressurization ram for compressing the fuel charge within the pressurizing chamber, wherein the fuel charge is heated in the pressurization chamber in the presence of a catalyst;
- and
- an injector nozzle for injecting the heated catalyzed fuel charge into the combustion chamber of the internal combustion engine, wherein injector pressure is high enough that the fuel charge operates as a super-critical fluid at a selected temperature setting.
An injector-ignition fuel injection system for dispensing fuel into a combustion chamber of an internal combustion engine, the fuel injection system comprising:
- an ECU controlling a heated catalyzed fuel injector for heating and catalyzing a next fuel charge, wherein the ECU uses a one firing cycle look-ahead algorithm for controlling fuel injection;
- wherein injector pressure is high enough that the fuel charge operates as a super-critical fluid at a selected temperature setting.
Dependencies are inferred from the claim text.