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Exhaust Driven Fuel Supply Pump (EDFSP)

[Category : - MECHANICAL ENGINEERING- Automotive Accessories - Pumps]
[Viewed 1750 times]

The present invention relates to a pump assembly for automobiles. More particularly, the present invention relates to a novel fuel supply pump (hereinafter FSP) driven by exhaust gases that can suck the fuel from the fuel tank, generate the required pressure in the pump itself, pump the fuel into the fuel accumulator at that high pressure and maintain the required pressure as per the need of the engine therefore saving the power of engine which was previously used to drive the fuel injector pump (hereinafter FIP).
During this complete process of fuel supply to the fuel accumulator, fuel pressure maintenance is the most vital
point where almost 15% of the power generated by the engine is rather used for this purpose of pressure generation and maintenance which is not available for use. The FIP gets driven by the engine crankshaft which pumps the fuel at high pressure and
maintains it throughout. This 15 % of the engine power can be saved if an alternative source of pressure generation and maintenance is found without addition any extra
power source.
There is provided a fuel suction/supply pump driven by exhaust gases that would suck the fuel from the fuel tank, generate the required pressure in the pump itself, pump the fuel into the fuel accumulator at that high pressure and also maintain the required
pressure as per the need of the engine. All this work is done using the kinetic energy of the exhaust gases which drives especially designed set of fan mounted on the shaft and the torque developed through this is multiplied by 16 times using a reduction drive-train and at the same time, the rpm of the rotating shaft of the pump is reduced by 16 times. This helps in keeping the piston sub-assembly in a proper workable condition without overheating.
The drive-train is used to drive a connecting rod and piston sub-assembly which sucks and compresses the fuel to the required limit. There is a set of valve, one inlet, one outlet and one overflow valve. These valves control the forward flow of fluid and prevent
any back flow. In case of overflow, there is an overflow valve provided opening into the overflow line which carries the extra fuel back to the fuel tank at low pressure. In this manner, the 15 % power of the engine that was being used to drive the FIP is
saved. This energy now is available for any other productive use hence increasing the power output of the engine without increasing the engine capacity. There is also provided a method for supplying fuel into fuel accumulator, said method comprising the steps of:
i) providing a fuel pump, said pump comprises plurality of exhaust blades and inlet
blades which attached to enclosed bearings on the shaft to provide free rotation
to the shaft;
ii) forming exhaust gases which is combustion emanates out of the engine through
the exhaust manifold;
iii) directing said exhaust gases to the exhaust blades to generate power to drive
the said fuel;
iv) providing a inlet line that carries the fuel from a fuel tank to the said pump; and
v) providing upward and downward stroke by using a rod-piston assembly to move
the fuel into fuel accumulator.
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Financial information

The patent application for this invention is filed but it is yet to be published. This invention has tremendous market scope as it will completely change the face of engines (Automotive, Marine and other heavy engines).

I would prefer licensing it with royalty.

This invention is made by one single person (Milind Raj) and no other company or any other person has any kind of contribution in the invention.

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milind raj (India)

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