FORM 2
THE PATENTS ACT 1970 (39 OF 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION (See section 10 and rule 13)


TITLE OF THE INVENTION TURBO CHARGED INTERNAL COMBUSTION ENGINE
APPLICANTS
PREMIER LIMITED
AN INDIAN COMPANY
of 58, NARIMAN BHAWAN,
NARIMAN POINT,
MUMBAI-400 021, INDIA

The following specification particularly describes the invention and the manner in
which it is to be performed


TURBO CHARGED INTERNAL COMBUSTION ENGINE
FIELD OF THE INVENTION
The present invention in general relates to a turbo charged internal combustion engine and more particularly to an internal combustion engine in the form of a single stage turbocharger system having an exhaust gas waste gate control.
BACKGROUND OF THE INVENTION
Naturally aspirated internal combustion diesel engines are known in the art. However, in general, naturally aspirated engines have some draw backs. For example, such engines use only the downward stroke of a piston to create an area of low pressure in order to draw air into the cylinder trough the intake valves. Since the pressure of the air in the atmosphere is not more than 1 bar, this ultimately limits to the pressure difference across the intake valves and thus the amount of air entering the combustion chamber. This ability to fill the cylinder with air is its volumetric efficiency, which, is therefore limited for naturally aspirated internal combustion engines. This disadvantage in particular and other disadvantages in general led to the introduction of turbo charged internal combustion engines.
The turbocharger in turbo charged internal combustion engines, increases the pressure at the point where air enters the cylinder, a greater mass will be forced in as the inlet manifold pressure increases. The additional air makes it possible to add more fuel, increasing the power output of the engine. Because the pressure of the cylinder must not go too high to avoid detonation and physical damage, controlling the rotational speed of the turbocharger must control the intake pressure. The control function is performed by the wastegate, which routes some of the exhaust flow away from the exhaust turbine. This controls shaft speed and regulates air pressure in the intake manifold. The application of the compressor to increase pressure at the point of cylinder air intake is often referred to as forced induction. Turbochargers also convert some of the I.C. engines exhaust into useful work. This energy would have otherwise been wasted as exhaust gas.
1

Turbo charged internal combustion engines are of course already known in the art. The turbo charger was invented by Swiss engineer Alfred Buchi. His patent for a turbo charger was applied for use in 1905. However, with the intensification of application of such turbocharger engines in the industry, particularly having regard to the increase in multifacetal needs cropping up in the industry every day, the power and torque yielded turbocharger internal combustion engines in vogue, needed to be substantially enhanced. However, significant development in that view of the matter was far from being achieved for a considerably long period of time.
Accordingly, there was a long felt need to develop a turbo charged internal combustion engine which yields substantially enhanced power and torque.
The present invention meets the aforesaid long felt need.
All through out the specification including the claims, the words "turbo", "turbocharged", "turbine", "cylinder", "engine", "compressor", "pump", "lubricant", "combustion " are to be interpreted in the broadest sense of the respective terms and includes all similar items in the field known by other terms, as may be clear to persons skilled in the art. Restriction/Limitation if any, referred to in the specification, is solely by way of example and understanding the present invention.
OBJECTS OF THE INVENTION
It is the principal object of the present invention to provide a turbo charged internal combustion engine which is adapted to yield substantially enhanced power and torque.
It is another object of the present invention to provide a turbo charged internal combustion engine which is substantially less noisy .
2

It is another object of the present invention to provide a turbo charged internal combustion engine which involves substantially low consumption of duel during its operation .
It is a further object of the present invention to provide a turbo charged internal combustion engine which is adapted to utilize wasted exhaust energy for combustion purpose.
It is a further object of the present invention to provide a turbo charger internal combustion engine which involves simplified construction and low maintenance and requires substantially less installation space.
It is yet another object of the present invention to provide a turbo charged internal combustion engine which is adapted to significantly better high altitude performance.
It is another object of the present invention to provide a method of manufacturing a turbo charged internal combustion engine which is adapted to yield substantially enhanced power and torque.
How the foregoing objects are achieved and the other aspects of the present invention will be clear from the following description, which is purely by way of understanding and not by way of any sort of limitation.
SUMMARY OF THE INVENTION
Accordingly the present invention provides an internal combustion engine which is turbocharged having at least a combustion chamber and an exhaust gas waste gate control including at least two turbo elements operatively connected to a turbine and to at least a compressor, said compressor being installed on a single shaft, said turbine being adapted to apply the exhaust gas to drive said compressor and said compressor being adapted to draw in fresh air in compressed form, whereby enhancement in power and torque is achieved.
3

In accordance with preferred embodiments of the engine of the present invention: -there exists a fuel injection pump adapted to inject atomized fuel inside said combustion chamber for causing said fuel to mix with hot air in a very fine mist, for vapourization of said air and initiation of combustion pursuant thereto.
-said engine is provided with a lubrication system adapted to deliver clean oil at the correct temperature and pressure to every part of said engine.
-said system is provided with a cooling system.
-said engine is provided with at least four in line cylinders.
The present invention also provides a single stage turbo charger system having at least a combustion chamber and an exhaust gas waste gate control including at least two turbo elements operatively connected to a turbine and to at least a compressor being installed on a single shaft, said turbine being adapted to apply the exhaust-gas to drive said compressor, said compressor being adapted to draw in fresh air in compressed form, whereby enhancement in power and torque is achieved.
The present invention also provides a single stage turbo charger system comprising a plurality of internal combustion engines as described hereinbefore, said internal combustion engines being operatively connected to each other.
The present invention also provides a method of making an internal combustion engine which is turbo charged including designing at least one combustion chamber and operatively connecting it to at least two turbo elements and to a turbine and to at least a compressor, said method further including installing said compressor on a single shaft, whereby an internal combustion engine having an exhaust gas waste gate control is achieved, capable of enhancement in power and torque.
4

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
The nature and scope of the present invention will be better understood from the accompanying drawings, which are by way of illustration of some preferred embodiments and not by way of any sort of limitation. In the accompanying drawings:
Figure 1 illustrates a schematic lay out of a preferred embodiment of the turbo charged machine in accordance with the present invention.
Figure 2 illustrates an exploded view of the lay out of the lubrication system of a preferred embodiment of the turbo charged machine in accordance with the present invention.
Figure 3 illustrates further preferred embodiments of the lubrication system of the turbo charged machine in accordance with the present invention.
Figure 4 illustrates a preferred embodiment of the fuel injection pump of the single stage turbocharger system in accordance with the present invention.
Figure 5 illustrates a perspective view of a preferred embodiment of the turbo charger machine in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
As stated under the heading "Background of the Invention" the present invention provides a single turber charger system with an exhaust gas waste gate control, which facilitates substantially higher power and torque besides yielding other advantages.
The turbo charged engine in accordance with the present invention is an improved version. Internal combustion engines with turbo charger, as commonly known use the energy contained in the exhaust & convert it into mechanical energy in an exhaust turbine to power a turbo compressor, which increases the
5

pressure of the air supplied to the internal combustion engine. To accomplish this, the present invention provides a single stage turbo charging system with an exhaust gas waste gate control, whereby specific advantages are achieved.
The accompanying figure 1 illustrates a schematic lay out of a preferred embodiment of the turbo charged machine in accordance with the present invention. The machine comprises the main engine(1), intake of air(4) into the system, passage of air to intake manifold(2) and exhaust manifold(3), waste gate control(5) and exhaust gas out(6). It also shows the turbo charger(7). During the intake stroke, the inlet valve opens and air enters in combustion chamber. The piston compresses the air in the cylinder, heating it in the process. At the appropriate moment, the fuel injector opens and fuel is injected into the hot air in a very fine mist. The hot air vapourizes the fuel and combustion begins. The high pressure resulting from the combustion of the fuel forces the piston in a downward motion. During the exhaust stroke, as the piston moves in an upward direction, unburned gases are forced through the exhaust valve to complete the four strokes. There is at least one combustion chamber operatively connected to the engine.
The turbo charged engine is also provided with a lubrication system to deliver clean oil at the correct temperature and pressure to every part of the engine. The engine cooling system is designed such that efficient cooling is achieved. Cooling is also needed because high temperature damages engine components and lubricants. The fuel system feed diesel to run the engine which basically comprises a fuel tank and fuel filter. The fuel injection pump injects atomized fuel inside combustion chamber, fuel mixes with hot air in a very fine mist. The hot air vapourizes the fuel and combustion begins.
Basically, the internal combustion engine which is turbocharged comprises at least a combustion chamber and an exhaust gas waste gate control including at least two turbo elements operatively connected to a turbine and to at least a compressor. The compressor is installed on a single shaft, the turbine being
6

adapted to apply the exhaust gas to drive said compressor. The compressor is adapted to draw in fresh air in compressed form, whereby enhancement in power and torque is achieved.
The present invention also provides a single stage turbo charger system comprising a plurality of internal combustion engines in accordance with the present invention as described hereinbefore. The internal combustion engines are operatively connected to each other. The single turbo charger system according to the present invention has preferably four in line cylinders.
The method of making an internal combustion engine which is turbo charged in accordance with the present invention includes designing at least one combustion chamber and operatively connecting it to at least two turbo elements and to a turbine and to at least a compressor. The method further includes installing the compressor on a single shaft, whereby an internal combustion engine having an exhaust gas waste gate control is achieved, capable of enhancement in power and torque.
The accompanying figure 2 illustrates an exploded view of the lay out of the lubrication system of a preferred embodiment of the turbo charged machine in accordance with the present invention. This figure also shows the exhaust gas outlet(6) and the waste gate control(5). Oil moves from the cylinder head(10) to the cylinder block(8) through the turbo oil lubrication pipe(9). The accompanying Figure 3 illustrates actual passage of oil from cylinder head(10) and actual passage of oil from turbocharger(11).
The accompanying figure 4 illustrates the fuel injection pump installation showing the fuel injection pump(12), intake manifold(2) and LDA pipe connection(13). The accompanying figure 5 illustrates the actual turbo charger unit(14) in the turbo charger unit according to the present invention.
7

Following are the salient non-limiting advantages of the machine according to the present invention:
a) Substantially enhanced yield of power and torque.
b) Substantially less noisy and the turbo-charger itself acts as a silencer..
c) Involves substantially low consumption of fuel during its operation .
d) Adapted to utilize wasted exhaust energy for combustion purpose.
e) Involves simplified construction and low maintenance and requires substantially less installation space and therefore has economic significance. The technical advancements and economic significance achieved by the present invention were established after exhaustive experiments and trials and such technical advancement and economic significance were hitherto not achieved or conceived by persons skilled in the art.
The present invention has been described with reference to some drawings and preferred embodiments, purely for the sake of understanding and not by way of any limitation and the present invention includes all legitimate developments within the scope of what has been described hereinbefore and claimed in the appended claims.
8

We Claim:
1. An internal combustion engine which is turbocharged having at least a combustion chamber and an exhaust gas waste gate control including at least two turbo elements operatively connected to a turbine and to at least a compressor, said compressor being installed on a single shaft, said turbine being adapted to apply the exhaust gas to drive said compressor and said compressor being adapted to draw in fresh air in compressed form, whereby enhancement in power and torque is achieved.
2. The internal combustion engine as claimed in claim 1 wherein there exists a fuel injection pump adapted to inject atomized fuel inside said combustion chamber for causing said fuel to mix with hot air in a very fine mist, for vapourization of said air and initiation of combustion pursuant thereto.
3. The internal combustion engine as claimed in claims 1 to 2, wherein said engine is provided with a lubrication system adapted to deliver clean oil at the correct temperature and pressure to every part of said engine.
4. The internal combustion engine as claimed in claim 3, wherein said system is provided with a cooling system.
5. The internal combustion engine as claimed in claim 4 wherein said engine is provided with at least four in line cylinders.
6. A single stage turbo charger system having at least a combustion chamber and an exhaust gas waste gate control including at least two turbo elements operatively connected to a turbine and to at least a compressor being installed on a single shaft, said turbine being adapted to apply the exhaust-gas to drive said compressor, said compressor being adapted to draw in fresh air in compressed form, whereby enhancement in power and torque is achieved.
9

7. A single stage turbo charger system comprising a plurality of internal combustion engines as claimed in claims 1 to 5, said internal combustion engines being operatively connected to each other.
8. A method of making an internal combustion engine which is turbo charged including designing at least one combustion chamber and operatively connecting it to at least two turbo elements and to a turbine and to at least a compressor, said method further including installing said compressor on a single shaft, whereby an internal combustion engine having an exhaust gas waste gate control is achieved, capable of enhancement in power and torque.
Dated this 18th Day of September 2009 For Premier Limited Signatures
Name: MAITREYA V. DOSHI
(APPLICANT) Designation: CHAIRMAN & MANAGING DIRECTOR