Internal combustion engine supercharging pressure control device

FIELD: mechanical engineering; internal combustion engines with supercharging.

SUBSTANCE: proposed device to control supercharging pressure of internal combustion engine had turbosupercharge with compressor having air pressure line connected with engine combustion chamber through mixer of products of pyrolysis and air, and drive steam turbine whose inlet is connected with outlet of water-steam space of cooling-evaporating set, and outlet is connected with mixer of fuel fumes and water steam. Device is furnished with evaporating heat accumulating set with housing accommodating rigidly installed outer and inner cylindrical pipes. Surface of inner pipes is ribbed. Space between inner and outer pipes is filled with heat-accumulating material, for instance, alloy of aluminum and silicon. Holes are made in lower part of evaporating heat-accumulating set and nozzles connected with water pump are fitted in said holes. Inlet of steam turbine is connected with outlet of steam space of evaporating heat-accumulating set by means of pipelines connected by branch pipe. Evaporating heat accumulating set is arranged in exhaust manifold.

EFFECT: reduced toxicity, increased economy and efficiency of internal combustion engine in operation.

1 dwg

 

The invention relates to the field of engine development, in particular, can be used in internal combustion engines with turbocharging.

The closest technical solution, selected as a prototype, is a stand-alone power system with gaseous fuel internal combustion engine containing a fuel tank filled with liquid hydrocarbon fuels coupled with surface pyrolytic reactor having a fuel cavity and the cavity is connected to the exhaust gas line of the engine. The fuel cavity of the reactor is connected to the air mixer and the resulting pyrolysis products, which, in turn, is connected to the combustion chambers of the engine. On the fuel line reactor with a mixer set transferline the unit with water steam cavity and inside the reactor at the inlet to the fuel cavity is mixer of fuel vapor and water input water steam cavity unit is connected to a steam inlet of the mixer fuel vapour and water. Inside the cavity of the reactor, connected to the exhaust gas line, posted by oxidizing catalyst, made in the form of thin-walled elements of the base metal. Fuel the reactor cavity is made in the form of a system of pipes and thin-walled elements in the form of ribs of these pipes. Autonomous system pitnyakarna fuel internal combustion engine provided with a device for a supercharged engine. Device for supercharged internal combustion engines, containing a turbocharger having a compressor with an air discharge line connected to the combustion chamber of the engine through the mixer products of pyrolysis and air, and drive a steam turbine, the inlet of which is connected to the output water steam cavity transferline unit, and the output from the mixer of fuel vapor and water vapor (see RF patent № 2120556, CL F 02 B 37/00, 1998).

However, during operation of the known device is observed smoky combustion and increase the effective specific fuel consumption on mode acceleration due to lack of air, the deterioration of the response characteristics of the power plant because of the high inertia of the moving parts of the turbine and compressor, narrowing the operating frequency range.

The present invention aims to reduce toxicity, increase efficiency, the efficiency of the internal combustion engine at deceleration, reducing the acceleration of the rotor of the turbocharger.

The solution of this problem is achieved in that in a device for regulating the pressure of a supercharged internal combustion engine, containing a turbocharger having a compressor with an air discharge line connected to the combustion chamber of the engine through the mixer products of pyrolysis and air, and drive a steam tour the inu, the entrance of which is connected to the output of the water steam cavity transferline unit, and the output from the mixer of fuel vapor and water vapor added evaporative heat storage unit, comprising a housing in which is rigidly mounted cylindrical pipes - external and internal. The space between the inner and outer tubes is filled with the heat storage material, for example, from an alloy of aluminum and silicon, with the ability to store large amounts of energy when heated, especially when the melting point. The surface of the inner pipe is made of ribbed. In the lower part of the evaporative heat storage unit with holes, in which are mounted nozzles connected to a water pump, with the inlet of a steam turbine connected to the steam output cavity evaporative heat storage unit through pipelines connected by a pipe, while evaporative heat storage unit is located in the exhaust manifold.

The hallmark of the prototype is the fact that additionally introduced evaporative heat storage unit, comprising a housing in which is rigidly mounted cylindrical pipes - external and internal. The space between the inner and outer tubes filled talaak umuleri material, for example, from an alloy of aluminum and silicon, with the ability to store large amounts of energy when heated, especially when the melting point. The surface of the inner pipe is made of ribbed. In the lower part of the evaporative heat storage unit with holes, in which are mounted nozzles connected to a water pump, with the inlet of a steam turbine connected to the steam output cavity evaporative heat storage unit through pipelines connected by a pipe, while evaporative heat storage unit is located in the exhaust manifold.

Comparative analysis of the proposed solutions and selected as the prototype shows that the proposed device pressure regulating inlet air reduces the lack of air on the mode of dispersal, thereby to improve the parameters of the working cycle of the engine.

The drawing shows a device for regulating the pressure of a supercharged internal combustion engine of the described system.

Device for regulating the pressure of a supercharged internal combustion engine includes a turbocharger 3, having a compressor 4 with the air discharge line 2 connected to a combustion chamber of the engine through the mixer products of pyrolysis and air 1, and drive provayderin 5, the entrance of which is connected to the output of the water steam cavity transferline unit 16, and the output from the mixer of fuel vapor and water vapor 6, also includes evaporative heat storage unit 10, comprising a housing 12 in which is rigidly mounted cylindrical pipe 13 external and internal 14. The space between the inner and outer tubes is filled with the heat storage material 15, for example, from an alloy of aluminum and silicon, with the ability to store large amounts of energy when heated, especially when the melting point. The surface of the inner pipe 14 is finned. In the lower part of the evaporative heat storage unit with holes, in which are mounted the nozzles 8 connected to the water pump 7, and the entrance of the steam turbine 5 is connected to the output of the steam cavity 11 evaporative heat storage unit 10 through pipelines connected by a pipe 17, while evaporative heat storage unit 10 is located in the exhaust manifold 9.

Device for regulating the charge pressure is as follows. In operation, the engine exhaust gases passing through the exhaust manifold 9, in contact with the outer cylindrical tube 13, thereby heating located in the annular space talaak umuleri material 15, in which when heated, the accumulation of thermal energy. On the mode of dispersal of the water pump 7 delivers water through a nozzle 8 on the inner finned inner tube walls 14. The process of heat transfer in which heat energy hot body - heat-retaining material 15 through the internal finned pipe 14 is transmitted less heated body of water, which is heated and converted into steam, the steam from the steam cavity 11 through the pipes and the connecting pipe 17 is supplied to the steam turbine 5. As a result, increases the inlet pressure to the steam turbine 5, which corresponds to the increase in turbine power and faster acceleration of the rotor of the turbocharger.

The workflow using the specified device results due to more rapid acceleration of the rotor of the turbocharger to reduce the lack of air on the mode of dispersal, thereby increasing the parameters of the working cycle of the engine.

Device for regulating the pressure of a supercharged internal combustion engine, containing a turbocharger having a compressor with an air discharge line connected to the combustion chamber of the engine through the mixer products of pyrolysis and air, and drive a steam turbine, the inlet of which is connected to the output water steam cavity hardening-ispar the execution unit, and the output from the mixer of fuel vapor and water vapor, characterized in that it additionally introduced evaporative heat storage unit, comprising a housing in which is rigidly mounted a cylindrical pipe, the external and internal surface of the inner pipe is made of ribbed, with the space between the inner and outer tubes is filled with the heat storage material, for example, from an alloy of aluminum and silicon, and in the lower part of the evaporative heat storage unit with holes, in which are mounted the nozzles connected to the water pump, the inlet of a steam turbine connected to the steam output cavity evaporative heat storage unit through pipelines connected by a pipe while evaporative heat storage unit is located in the exhaust manifold.



 

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