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US 8,028,683 B1Granted
Multifuel supply system
AssigneePlant Oil Powered Diesel Fuel Systems, Inc.
InventorKevin Forrest
Life of this patent
Estimating the term…
Abstract
A system for connecting a supply of alternative oil to a diesel engine which uses heated engine coolant and electric heat to prevent engine line restriction due to gelled alternative oil.
Claims29
A method for supplying alternative oil to an engine, the system comprising:
- providing a supply line extending from an alternative oil storage tank to an alternative oil heated filter, from the alternative oil filter to a first valve, and from the first valve to the engine;
- selecting the alternative oil using the first valve;
- providing an alternative oil operating loop extending from the engine to a second valve, from the second valve to a third valve, from the third valve to the first valve, and from the first valve to the engine;
- and
- pumping the alternative oil through the alternative oil heated filter and the supply line,
- wherein each one of the first, second, and third valves is capable of being operated independently of other ones of the valves.
3 more elements
A fuel supply system for a compression-combustion engine, comprising:
- a petrochemical fuel tank for storing petrochemical fuel;
- an alternative oil storage tank for storing alternative oil;
- a first valve, a second valve, and a third valve,
- a petrochemical fuel supply line extending from the petrochemical fuel tank to the first valve, and from the first valve to the engine;
- an alternative oil supply line extending from the alternative oil storage tank to the first valve and from the first valve to the engine;
- an alternative oil purge line extending from the engine to the second valve, from the second valve to the third valve, and from the third valve to the alternative oil storage tank;
- an alternative oil operating loop extending from the engine through a portion of the alternative oil purge line to the second valve, from the second valve to the third valve, from the third valve to the first valve, and from the first valve to the engine, and
- a pump configured such that it can be used to selectively pump either the petrochemical fuel or the alternative oil.
5 more elements
A fuel supply system for an engine comprising:
- a petrochemical supply line connected to a petrochemical storage tank which stores petrochemical fuel;
- a multifuel supply line connected to a multifuel storage tank which stores multifuel;
- a heated valve assembly connected to each of the supply lines for selectively switching between fuel stored in said multifuel and said petrochemical storage tanks;
- and
- a fuel cooling heat exchanger in a fuel input path extending between the multifuel tank and the engine for selectively cooling the fuel prior to the fuel being supplied to the engine.
2 more elements
Dependencies are inferred from the claim text.