Fuel Management System for Very High Efficiency Flex Fuel Engines Powered by Methanol and Gasoline
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Accused Products
Abstract
Turbocharged or supercharged spark ignition engine. The engine includes a source of methanol for direct injection of methanol into the engine and for delivering a portion of the methanol to a reformer for generating a hydrogen-rich gas.
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Citations
101 Claims
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1-59. -59. (canceled)
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60. A fuel management engine system for a turbo-charged or supercharged spark ignition engine comprising:
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a source of alcohol for direct injection into the engine and for delivering a portion of the alcohol to a reformer for generating a hydrogen-rich gas at lower engine torque values, wherein the hydrogen-rich gas is introduced into the engine to extend the limit of lean operation, wherein the engine operates at a substantially stoichiometric fuel/air ratio during part of a drive cycle and at a lean fuel/air ratio during other parts of the drive cycle. - View Dependent Claims (61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73)
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74. A fuel management engine system for a turbo-charged or supercharged spark ignition engine comprising:
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a source of ethanol for direct injection into the engine and for delivering a portion of the ethanol to a reformer for generating a hydrogen-rich gas at lower engine torque values, wherein the hydrogen-rich gas is introduced into the engine to extend the limit of lean operation, wherein the engine operates at a substantially stoichiometric fuel/air ratio during part of a drive cycle and at a lean fuel/air ratio during other parts of the drive cycle. - View Dependent Claims (75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87)
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88. A fuel management engine system for a turbo-charged or supercharged spark ignition engine comprising:
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a source of natural gas for direct injection into the engine and for delivering a portion of the natural gas to a reformer for generating a hydrogen-rich gas at lower engine torque values, wherein the hydrogen-rich gas is introduced into the engine to extend the limit of lean operation, wherein the engine operates at a substantially stoichiometric fuel/air ratio during part of a drive cycle and at a lean fuel/air ratio during other parts of the drive cycle. - View Dependent Claims (89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101)
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Specification