UA15601U - Application of liquid rocket engine as silencer of combustion engine - Google Patents

Abstract

Application of liquid rocket engine as silencer for combustion engine.

Description

Description of the invention

The utility model belongs to the field of car engines. Can also be used on small 2 sport aircraft that still use piston engines, as well as on boats or motor boats.

In internal combustion engines, the heat that is removed with the exhaust gases was used to obtain mechanical work in the following ways: - to drive the turbocharger; - to feed part of the exhaust gases into the intake manifold of the internal combustion engine, and thus improve the completeness of fuel combustion; - to activate the internal combustion engine cooling system due to the injection effect.

The listed methods are described in Julius Martskerle's book "Car Today and Tomorrow", Moscow,

Mechanical engineering, 1980, pages 191-194).

An essential feature of the given analogues, which coincides with an essential feature of the claimed useful model, is the use of part of the energy of the exhaust gases to increase the efficiency of the engine as a heat engine - increasing its power and efficiency.

The technical result of the application of the proposed useful model is the improvement of the characteristics of the internal combustion engine - its power and efficiency.

The use of a muffler with a reactive exhaust can be attributed to the use of a known device for a new purpose. Namely: a liquid rocket engine, its combustion chamber and nozzle is used as a muffler for an internal combustion engine. At the same time, such a muffler will use part of the energy of the exhaust gases to move the car (or boat, or plane) forward. At the same time, the internal combustion engine itself will be used as a turbopump unit in a liquid rocket engine.

This sequential use of actually two engines - an internal combustion engine and a liquid rocket engine can become a power plant of a new generation with a higher efficiency than at present. in

The solution is not obvious to a person skilled in engine engineering.

The coefficient of efficiency of steam engines was 7...8965, for a gasoline internal combustion engine - about 2595, for a diesel engine - up to 3395.

Without delving into serious calculations of hydro-gas dynamics and heat engineering, but using general (37 considerations, you can roughly calculate like this. Ha»)

About 33,905 of fuel energy goes unused with exhaust gases. The efficiency coefficient of a liquid rocket engine is about 3095. So: about 0.330.3-0.0991096. oh

Thanks to the use of a muffler with a jet exhaust, the economy and power of an internal combustion engine can be increased by about 1095. --

The efficiency coefficient of a liquid rocket engine takes into account energy losses for driving the turbopump unit, for cooling the walls of the combustion chamber, for activating the power supply and regulation system, and so on.

The coefficient of effectiveness of the combustion chamber itself and the nozzle of a liquid rocket engine is usually greater than 3090.

When using the proposed useful model, the flow of exhaust gases exiting cylinders C 50 of an internal combustion engine has pressure, temperature, and velocity. The flow of exhaust gases, narrowing in the critical cross-section and expanding in the nozzle of the muffler with a jet exhaust, will press on the walls of the nozzle and create thrust. The force of traction will additionally move the car, boat or plane forward. At the same time, the useful power of the internal combustion engine and muffler with jet exhaust will be added - because the torque from the crankshaft of the internal combustion engine, which is transmitted through the gearbox and transmission to the wheels of the car, and the jet thrust of the muffler with jet exhaust are directed in the same direction. - The exception, of course, is the moment when the car moves in reverse. In this case, the thrust of the muffler with the jet exhaust will prevent the car from moving. This is not a big problem, since the ratio of the power of the internal combustion engine and the muffler with a jet exhaust will be about (4...3):1.

It is possible, for example, to use special blinds that will open when the reverse gear is engaged, and av! 20 will create reverse traction or other solutions.

The most effective use of a muffler with a jet exhaust can take place on cars with a rear engine location - "Porsche", Formula-1. 1 - pipeline from the cylinders of the internal combustion engine; 2 - nozzle; 29 C - noise-absorbing partitions (conditions shown); c Ok - critical section.

Figure 1 shows a muffler with a reactive exhaust. Position 2 - the nozzle - represents a novelty in this well-known engine part. It is the pressure on the side walls of the nozzle that will create additional engine thrust.

Functionally, the purpose of the nozzle in a jet muffler can be likened to the second or next 60 stage in a turbine, or to another sail in a sailing ship.

Figure 2 shows the location of a muffler with a jet exhaust on a car (shown by a dotted line). For example, the Zaporizhia ZAZ 968M car is taken.

The simplified design of the utility model, made in the form of a muffler attachment for the "Zaporizhets" car, confirmed the expected result. because the engine of the "Zaporizhets" car, equipped with a muffler with a jet exhaust, became noticeably stronger and more economical.

Claims (1)

Formulation of the invention Application of a liquid rocket engine, namely its nozzle and combustion chamber, as a muffler for an internal combustion engine. » 2 «- (av) (Se) yuyu che: - with . a - 1 (e)) o 50 -M s bo b5