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Duty cycling feature for the proportional purge solenoid to impr

Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Patent

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Duty ratio control method for on-off type solenoid valves

Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent

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Duty ratio control method for solenoid control valve means

Internal-combustion engines – Charge forming device – Auxiliary air or oxygen added to combustible mixture
Patent

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Dwell circuitry for an ignition control system

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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Dwell linkage

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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Dynamic EGR concentration estimation method for a motor...

Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Reexamination Certificate

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Dynamic electronic control system for controlling the injection

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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Dynamic enhancement of EGR flow in an internal combustion engine

Internal-combustion engines – Charge forming device – Exhaust gas used with the combustible mixture
Patent

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Dynamic fuel control

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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Dynamic fuel injection control pressure set-point limits

Internal-combustion engines – Charge forming device – With fuel pump
Reexamination Certificate

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Dynamic gas seal for internal combustion engines

Internal-combustion engines – Charge forming device – Crankcase vapor used with combustible mixture
Patent

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Dynamic infrared sensor for automotive pre-vaporized fueling...

Internal-combustion engines – Charge forming device – Having fuel vapor recovery and storage system
Reexamination Certificate

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Dynamic methods and apparatus for reducing octane requirement in

Internal-combustion engines – Charge forming device – Fuel injection system
Patent

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