ENGINE START-UP WITH A SECONDARY FUEL
First Claim
Patent Images
1. A system comprising:
- a spark ignition engine;
a first fuel source that stores a first type of fuel;
a second fuel source that stores a second type of fuel that is more volatile than the first type of fuel; and
a fuel line that fluidically connects the first and second fuel sources with the spark ignition engine.
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Abstract
An engine system includes a primary fuel source and a secondary fuel source. The secondary fuel source includes a secondary fuel with which the engine can be initially started in order to preheat the engine such that it is better able to combust the primary fuel. In some examples, the secondary fuel source is in-line with the primary fuel source, such that the first and secondary fuel sources share a fuel line that supplies fuel to the engine. In addition, in some examples, the secondary fuel source is removably attached to the fuel line, such that it can be removed from the fuel line in a relatively efficient manner.
36 Citations
20 Claims
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1. A system comprising:
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a spark ignition engine; a first fuel source that stores a first type of fuel; a second fuel source that stores a second type of fuel that is more volatile than the first type of fuel; and a fuel line that fluidically connects the first and second fuel sources with the spark ignition engine. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system comprising:
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a spark ignition engine; a primary fuel source that stores a primary fuel; a secondary fuel source that stores a secondary fuel different than the primary fuel; and a pump that pumps the fuel from the first and second fuel sources to the engine, wherein the first and second fuel sources are connected to the pump in series. - View Dependent Claims (12, 13, 14)
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15. A method comprising:
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fluidically connecting a removable fuel source to a fuel line, wherein the fuel line fluidically connects a primary fuel source to an engine; and starting the engine with a secondary fuel contained by the removable fuel source, wherein after removal of the removable fuel source from the fuel line or after depletion of the secondary fuel from the removable fuel source, the engine runs on the primary fuel contained by the primary fuel source. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification