ITFE20100012A1 - WATER PUMP FOR CARS, PARTICULARLY STARTED BY THE APPLICATION OF AN APPROPRIATE TURBINE THAT USES THE EXHAUST GASES OF A COMBUSTION ENGINE - Google Patents

Description

DESCRIPTION

â € œWATER PUMP FOR CARS PARTICULARLY STARTED BY THE APPLICATION OF AN APPROPRIATE TURBINE THAT USES THE EXHAUST GASES OF A COMBUSTION ENGINEâ €.

The present invention relates to the system for rotating the shaft of a water pump applied to internal combustion engines and in particular to water-cooled engines, both industrial and commercial and for small and large cars.

The work performed by the water pump applied to an internal combustion engine is to put the coolant in motion inside the cavities of the engine block and head (hereinafter only engine block), which circulates through a heat exchanger. heat (radiator), as it cools, it removes the heat produced by the combustion of the fuel introduced into the internal combustion chambers.

Usually, the positioning and shape of the water pump with respect to the engine block (Table 0 attached), is decided by the designers of the engine and consequently the water pump can be made in any possible functional form, while maintaining its principle unchanged. which is common to all types.

The attached Table 1 shows one of the many types of water pump that can be made.

To build a specific water pump, it would be enough to size the components with measures appropriate to that type, so that when coupled together they give life to the overall assembly of the water pump.

In this case, the representation of the water pump in Table 2 is indicative in its components and could not be otherwise, otherwise all the components would have to be drawn as the executives of all the innumerable water pumps.

On the other hand, however, in the study phase, knowing the characteristics of the water pump that you want to design, it is certainly possible to create all its specific components for that water pump.

Even water pumps like motors must be correctly designed and be reliable enough to guarantee the proper functioning of the internal combustion engine, because in the event of an unexpected failure of the water pump, there is a risk of severe damage to the engine.

The water pump in an internal combustion engine is of considerable importance, consequently it is an indispensable component for water-cooled engines and above all it must be reliable over time.

In these documents we will try to illustrate and demonstrate that the operation of the rediscovered pump is different from the current one and consequently the respective water pumps are different from each other.

COMPOSITION OF A CURRENT WATER PUMP

A common water pump, normally (not excluding different or special solutions) is made up of components that, assembled together, make up the pump assembly.

Referring to TAV. 1, the details that make up the whole are:

1. PULLEY (1)

2. PUMP BODY (3)

3. IMPELLER (4)

4. BEARING (5)

5. MECHANICAL SEAL (6)

COMPONENTS DESCRIPTION

Component (1) Table 1 or (4) of Table 0 is the PULLEY and is usually made of steel, obtained either by molding or by sintering.

Component (3) Table 1 or (1) of Table 0 is the PUMP BODY and is made of aluminum, cast iron, steel, or plastic (thermosetting).

Component (4) Table 1 is the IMPELLER and is made of plastic, pressed sheet steel or cast iron.

Component (5) Table 1 is the BEARING and can be made only and exclusively with a â € œalloyed steelâ € material capable of withstanding considerable loads (belt tension) lasting over time.

Component (6) Table 1 is the MECHANICAL SEAL, and consists of a steel casing where some carbon or similar discs are placed inside: pushed one against the other, they do not allow the passage of cooling liquid.

FUNCTION OF THE COMPONENTS

1. Component (1) of Table 1 or (4) of Table 0 is the PULLEY and is used to transmit the rotation motion to the bearing shaft.

2. Component (3) of Table 1 or (1) of Table 0 is the PUMP BODY and it is used to connect the water pump assembly (complete pump in all its components) to the engine block ( 2) of Table 0

3. Component (4) of Table 1 is the IMPELLER and is designed with a particular shape; its function is to set the coolant in motion inside the cavities of the engine block (2) of Table 0

4. Component (5) of Table 1 is the BEARING and is mainly used to rotate the impeller (4) Table 1.

5. Component (6) Tab. 1 is the MECHANICAL SEAL and is made up of two parts: a slot mounted on the pump body (3) of Tab. 1 or (1) of Tab. 0 and a movable part mounted on the bearing shaft (5) of Table 1, these pushed against each other do not allow the coolant to come into contact with the bearing.

OPERATION OF THE CURRENT WATER PUMP INTRODUCTION

The current water pump consists of its components as described above and has the exclusive task of moving the coolant inside the engine block with the aim of removing the heat generated by the combustion of the fuel.

Ultimately, for this phenomenon to occur, the impeller must necessarily be rotated.

DESCRIPTION

Turning the drive shaft (5) of Table 0, it sets in motion the transmission belt (3) of Table 0.

Said belt, moving in turn, rotates the pulley (4) of Table 0 which is fixed on the shaft (7) of Table 0 which is part of the bearing (5) of Table 1

Since the impeller (4) of Table 1 is fixed on the bearing shaft (5) of Table 1, as well as the pulley (1) of Table 1, consequently it too rotates integrally with the same shaft.

The rotation of the impeller as described above sets the coolant in motion inside the engine block (2) of Table 0.

DISADVANTAGES OF THE CURRENT WATER PUMP

This system, as described above, has two enormous disadvantages:

1. The imposition of the water pump unit to be continuously in motion even when the functional conditions of the engine do not require it.

2. Establish a priori through the design of the bearing, the maximum life of the water pump unit.

COMPOSITION OF THE NEW WATER PUMP

The new water pump is made up of some components identical to those of the current water pump which, assembled with the new components, make up the whole of the new water pump.

Referring to the attached Table 2 we have:

1. COVER (1)

2. TURBINE (2)

3. LUBRICATION HOLE (3)

4. PUMP BODY (4)

5. DRIVE SHAFT (5)

6. BUSHINGS (6)

7. MECHANICAL SEAL (7)

8. GIRANDES (8)

COMPONENTS DESCRIPTION

Referring to the attached Table 2 we have:

1. The component (1) called COVER is a specific component that is found on the market in various forms coupled with the subsequent detail â € œTURBINAâ € and is an integral part of the know - how of the manufacturers and for these reasons it cannot be represented in detail.

2. The component (2) called TURBINE is a component like the previous specific one and is on the market in various forms coupled with the cover and is an integral part of the know-how of the manufacturers and for these reasons it cannot be represented in detail.

3. The component (4) called PUMP BODY appears to be similar or in some cases the same as that of the current pump.

4. The component (5) called TRANSMISSION SHAFT can be made with a common alloy steel.

5. The component (6) called BRONZINA is usually made of alloyed brass specific for these applications.

6. The component (7) called MECHANICAL SEAL, is the same as that of the current pump.

7. The component (8) called IMPELLER, is the same as that of the current pump.

FUNCTION OF THE COMPONENTS

1. The component (1) of Table 2 â € œCOVERâ € given its particular internal section has the function of:

â € ¢ Convey the exhaust gases coming from the internal combustion engine through the holes (6) of Table 0 in a specific area called â € œVOLUTAâ €.

2. The component (2) of Table 2 â € œTURBINEâ € is used to rotate the transmission shaft (5) of Table 2.

3. Component (4) of Table 2 â € œPUMP BODYâ € is used to solidly connect the pump assembly (complete pump in all its components) to the engine block (2) of Table O. 4. The component (5) of Table 2 â € œTRANSMISSION SHAFTâ € is used to rotate the impeller (8) of Table 2.

5. The component (6) of Table 2 â € œBRONZINAâ € is used to support the rotation of the transmission shaft (5) of Table 2.

6. Component (7) of Table 2 â € œMECHANICAL SEALâ € is made up of two parts: a slot mounted on the pump body (4) of Table 2 and a moving part mounted on the transmission shaft ( 5) of Table 2 and serves to prevent the coolant from coming into contact with the bushing (6) of Table 2.

7. Component (8) of Table 2 "IMPELLER" is designed with a particular shape; its function is to set the coolant in motion inside the cavities of the engine block.

8. The component â € œPARTIALIZING VALVEâ € is not represented graphically because it is a commercial component, and is used to dose the quantity of fumes to pass through the â € œTURBINEâ € (2) of Table 2.

OPERATION OF THE NEW WATER PUMP

INTRODUCTION

The operation of this type of water pump consists in the application of a â € œTURBINEâ € to the transmission shaft of the water pump, in order to rotate an impeller, exploiting the residual energy possessed by the exhaust fumes of the engine.

DESCRIPTION

The combustion residues commonly called â € œFUMESâ €, are expelled through the cylinder head of the engine block through the holes (6) of Table 0 with high speed.

Said fumes pass through a â € œPARTZIALIZING VALVEâ € (since it is of a commercial type it cannot be represented graphically) capable of controlling the quantity of fumes to be allowed to pass and said regulation takes place via a temperature value.

This value is detected by the combination of:

1. Engine head temperature.

2. Coolant temperature.

When the temperature value reaches 90 ° C (or the established one) the PARTIALIZING VALVE will be at its maximum opening allowing the maximum quantity of fumes to pass.

When the temperature value is low (value to be established), then the PARTIALIZING VALVE will be completely closed and therefore will not allow any quantity of fumes to pass.

The fumes entering through the duct (9) Tab. 2, enter the chamber commonly called â € œVOLUTAâ € which, due to their high speed, rotate the â € œTURBINEâ € (2) of Table 2.

The transmission shaft (5) of Table 2 is integral with the â € œTURBINEâ € (2) of Table 2 and it rotates within the â € œBRONZINAâ € (6) of Table 2, lubricated by oil through the holes (3) of Table 2.

Since also the IMPELLER (8) of Table 2 turns out to be fixed to the transmission shaft, (5) of Table 2, consequently it too will rotate integrally with it, setting in motion the coolant in the cavity of the engine block.

DIFFERENCES BETWEEN THE CURRENT AND THE NEW WATER PUMP

INTRODUCTION

Neglecting the importance of the design that each pump can have, the way in which they are set in motion is decisive, being the only substantial difference.

DESCRIPTION OF THE CURRENT SYSTEM

In the current system, the water pump and therefore the impeller is set in motion through the transmission belt (3) of Table 0 connected directly and constantly to the motor shaft (3) of Table 0.

DESCRIPTION OF THE NEW SYSTEM

In the new system, the rotation of the water pump and therefore of the impeller takes place by means of a turbine (2) from Table 2, which is rotated by the exhaust gases of the internal combustion engine.

By virtue of this substantial difference, it can be assumed that the two rotation systems of the water pumps are profoundly different from each other.

For this reason, the relative water pumps must also be considered different from each other.

ADVANTAGES AND TECHNICAL TROUBLESHOOTING OF THE NEW WATER PUMP COMPARED TO THE CURRENT ONE

By comparing the two types of pump, the rediscovered system certainly solves some technical problems compared to the current one.

Below we will list all the advantages and technical resolutions that the invention allows us.

1. The pump starts running only when the temperature exceeds certain values.

2. Improve engine performance.

3. Reduction of fuel consumption.

4. Reduction of CO2 emission into the atmosphere.

5. Reduction of maintenance costs.

6. Reliability of the rotation of the water pump.

With reference to point 1, thanks to the throttle valve, the pump actually starts working only when the temperature value

valve will begin to open and then to allow the passage of fumes.

At this point, the fumes will begin to spin the turbine and then the impeller which in turn will set the coolant in motion.

When the temperature value drops below the operating one, the system will no longer require the movement of the coolant and consequently the throttle valve closing will prevent the passage of fumes and therefore stop the rotation of the turbine and therefore the stop of the water pump.

With reference to points 2 and 3, the performance of the engine certainly increases, as it does not continuously generate energy to make the water pump run.

The natural consequence of this activity certainly translates into lower fuel consumption.

Point 4 is certainly a consequence of points 2 and 3, because the engine consumes less fuel and releases less CO2 into the atmosphere.

This advantage is perfectly aligned with the Community directives.

Having eliminated the bearing that determines the life of the water pump assembly, it follows that the duration of the latter is no longer bound to that of the bearing and its frequent replacements; this certainly implies an economic saving of maintenance.

The new system certainly turns out to be more reliable than the current one, due to the fact that the rotation movement no longer occurs from the transmission belt, which in the event of breakage risks producing considerable damage to the engine.

Claims (9)

CLAIMS 1. Device comprising a pump for circulating a coolant in an internal combustion engine, the pump comprising an impeller (8), characterized in that the device further comprises a turbine connected to the pump to rotate the impeller (8) of the pump, the turbine having a respective impeller (2) configured to be moved by the exhaust gases produced by the internal combustion engine. 2. Device according to claim 1, and further comprising a duct (9) for conveying the exhaust gases to the turbine wheel (2). Device according to claim 2, wherein the duct (9) opens onto a turbine cover (1). Device according to one of the preceding claims, in which the pump comprises a body (4) adapted to be fixed to a monobloc of the internal combustion engine. Device according to claim 4, when dependent on claim 3, wherein the turbine cover (1) is fixed to the pump body (4). 6. Device according to one of the preceding claims, and further comprising a valve for regulating the quantity of exhaust gases directed towards the turbine, the valve being controllable by a circuit connected to a thermometer, the thermometer being arranged to detect the temperature of the cooling out of the internal combustion engine. Device according to one of the preceding claims, and further comprising a shaft (5) to which the impeller (2) of the turbine and the impeller (8) of the pump are fixed. 8. Device according to claim 7, when dependent on claim 4, in which the shaft (5) is rotatably supported by at least one bushing (6), a plurality of holes (3) being obtained in the pump body (4) for the passage of an oil suitable for lubricating said at least one bushing (6). Device according to claim 8, and further comprising a seal (7) for preventing the coolant from reaching said at least one bushing (6). Motor car comprising a device according to one of the preceding claims.