SYSTEM AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
First Claim
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1. A method of operating an internal combustion engine, comprising:
- supplying a primary fuel having a first octane rating at to an intake manifold of the engine;
supplying an amount of racing fuel concentrate to the intake manifold in response to a signal associated with engine load to bring the primary fuel to a second octane rating, the second octane rating being greater than the first octane rating; and
varying the amount of the racing fuel concentrate supplied to the intake manifold in response to variance of the signal.
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Abstract
A method of operating an internal combustion engine generally comprises supplying a primary fuel having a first octane rating at to an intake manifold of the engine, supplying an amount of racing fuel concentrate to the intake manifold in response to a signal associated with engine load, and varying the amount of the racing fuel concentrate supplied to the intake manifold in response to variance of the signal. The racing fuel concentrate is a petroleum distillate racing fuel, such as Torco® Mach Series Accelerator Race Fuel Concentrate, that significantly increases the octane rating of the primary fuel when the concentrate is supplied to the manifold.
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Citations
21 Claims
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1. A method of operating an internal combustion engine, comprising:
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supplying a primary fuel having a first octane rating at to an intake manifold of the engine;
supplying an amount of racing fuel concentrate to the intake manifold in response to a signal associated with engine load to bring the primary fuel to a second octane rating, the second octane rating being greater than the first octane rating; and
varying the amount of the racing fuel concentrate supplied to the intake manifold in response to variance of the signal. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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2. (canceled)
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15. A method of operating an internal combustion engine, comprising:
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supplying eighty units of pump fuel at to an intake manifold of the engine;
supplying one to four units of racing fuel concentrate to the intake manifold in response to a signal associated with engine load to increase the octane rating of the pump fuel by at least two octane numbers; and
varying the amount of the racing fuel concentrate supplied to the intake manifold in response to variance of the signal. - View Dependent Claims (16, 19)
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17. A racing fuel concentrate delivery system for an internal combustion engine, the engine having a primary fuel supply system that delivers a primary fuel into an intake manifold, the delivery system comprising:
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a supply of racing fuel concentrate;
a fuel injector adapted to discharge the racing fuel concentrate into the intake manifold of the engine;
a fuel pump adapted to deliver the racing fuel concentrate from said supply to said fuel injector; and
a pressure regulator adapted to vary the amount of racing fuel concentrate delivered to said fuel injector in response to a signal associated with the engine load.
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18. A method of operating a turbocharged or supercharged engine to prevent engine knock and attendant damage to the engine comprising:
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supplying gasoline having an octane rating that is insufficient to permit the engine to operate at a desired high boost level, and increasing the boost level to the engine while simultaneously adding to the engine a quantity of racing fuel concentrate with the ratio of concentrate quantity to gasoline quantity being increased as needed as the boost increases.
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20. A method of operating an internal combustion engine, comprising:
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supplying an amount of primary fuel having a first octane rating at to an intake manifold of the engine;
supplying an amount of racing fuel concentrate to the intake manifold in response to a signal associated with an increase in engine load to bring the primary fuel to a second octane rating, the second octane rating being greater than the first octane rating; and
maintaining at least the same amount of primary fuel supplied to the intake manifold when the racing fuel concentrate is supplied to the intake manifold.
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21. A method of operating a turbocharged or supercharged engine to prevent engine knock and attendant damage to the engine, comprising:
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supplying a pump fuel to the engine at a first rate, the pump fuel having an octane rating that is insufficient to permit the engine to operate at a desired high boost level;
increasing the boost level of the engine to the desired high boost level;
supplying the pump fuel to the engine at a second rate higher than the first rate while the engine is operating at the desired high boost level; and
increasing the octane rating of the pump fuel by at least four octane numbers in response to increasing the boost level to the desired high boost level.
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Specification