System and method for operating an internal combustion engine with hydrogen blended with conventional fossil fuels
First Claim
1. A system for retrofitting an internal combustion engine to use a proportion of hydrogen gas and existing fossil fuel, comprising:
- a) means for providing a source of hydrogen gas to said engine;
b) means for delivering hydrogen gas from said source to a combustion chamber of said engine; and
c) means for adjusting said engine operating parameters and controlling said delivery of hydrogen to provide selective introduction of hydrogen gas throughout the engine'"'"'s operating cycle.
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Accused Products
Abstract
A system for retrofitting an internal combustion engine to use a proportion of hydrogen gas and existing fossil fuel is disclosed. The system is comprised of a source of hydrogen gas and means for delivering hydrogen gas to the combustion chamber of the engine. The engine operating parameters are adjusted and the delivery of hydrogen is controlled to provide selective introduction of hydrogen gas throughout the engine'"'"'s operating cycle. The source of hydrogen gas can comprise an onboard hydrogen reformer, or hydrogen and carbon monoxide can be reformed inside the cylinder from an on board carrier of hydrogen. A single point injector placed at the intake manifold in close proximity to the engine intake valve can be used to mix the hydrogen gas to the air/fossil fuel mixture or sequential injectors can deliver hydrogen in close proximity to each engine intake valve, or directly into each cylinder.
83 Citations
19 Claims
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1. A system for retrofitting an internal combustion engine to use a proportion of hydrogen gas and existing fossil fuel, comprising:
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a) means for providing a source of hydrogen gas to said engine;
b) means for delivering hydrogen gas from said source to a combustion chamber of said engine; and
c) means for adjusting said engine operating parameters and controlling said delivery of hydrogen to provide selective introduction of hydrogen gas throughout the engine'"'"'s operating cycle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of operating an internal combustion engine using a proportion of hydrogen gas and existing fossil fuel, comprising the steps of:
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a) providing a source of hydrogen gas to said engine;
b) delivering hydrogen gas from said source to a combustion chamber of said engine;
c) adjusting operating parameters of said engine according to fuel volumes and engine efficiencies across said engine'"'"'s operating spectrum; and
d) controlling said delivery of hydrogen gas according to said operating parameters to provide selective introduction of hydrogen gas throughout the engine'"'"'s operating cycle. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19)
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Specification