SU1474302A1 - Supercharged ic-engine - Google Patents

Abstract

The invention improves engine efficiency by improving the use of pressure pulses. Inlet and outlet connections (P) 2 and 3 are made with side openings (BO) 8 and 9, and P 2 are connected to the air pressure P 10, and P 3 to the gas receiving P 13 of one of the pressure wave exchangers. The inlet receiver 4 and the exhaust manifold 5 are each made in the form of a tank that encloses, respectively, P 2 and 3 in the BO 8 and 9 zone, and P 13 and 14 are connected to these tanks. F _t p * 98F _o ≥0.25 F _t p, where F _o is the sectional area of the BO 2 or 3

F _t p is the cross-sectional area of P 3. With this arrangement, the waves moving along P 12 to BO 8 are converted by taking the charge mass from the high pressure zone and feeding the tail part of the wave from it. As a result of this, the time of their action at the inlet organs of the cylinder 1 is increased. 1 Cp. Of the sleeve, 1 slug.

Description

The invention relates to machine building, namely engine building, and can be used in internal combustion engines with supercharging from a turbocharger and from a gas dynamic pressure exchanger.

The purpose of the invention is to increase engine efficiency by improving the use of pressure pulses.

The drawing shows the scheme of the proposed internal combustion engine.

The engine contains at least one cylinder 1 with inlet and outlet nozzles 2 and 3, an air intake system equipped with an inlet receiver 4, an exhaust gas line equipped with an exhaust manifold 5, at least one turbocharger 6 and at least one wave exchanger 7 pressure. The inlet and outlet pipes 2 and 3 of each cylinder 1 are made with side holes 8 and 9. The intake receiver 4 of the intake system is connected to each inlet pipe 2 through its side holes 8, and the exhaust manifold 5 communicates with each outlet pipe 3 also through its side hole 9. The turbocharger 6 is connected through the air-pressure inlet 10 to the intake receiver 4 and through the gas inlet pipe 11 to the gas exhaust line. Air inlet

A wave exchanger 7 of the pressure is connected to the inlet receiver 4, and the gas inlet nozzle 13 is connected to the gas exhaust line.

3 cylinder outlets each connected to a gas inlet

13 one of the wave exchangers 7 pressure. 2 cylinder inlets

1 are connected to the air pressure pipe 12 of one of the wave exchangers 7 of pressure. The inlet receiver 4 and the exhaust manifold 5 are each made in the form of a reservoir, covering respectively the inlet and outlet nozzles 2 and 3 of the cylinders 1 in the area of the side openings 8 and 9. The gas intake and air inlet nozzles 11 and 10 of the turbocharger 6 are connected to these capacities.

The area of the bore of each side opening 8 or 9 of the pipes 2 and 3 is made in accordance with the ratio

2.5, 25 FTP,

where FO is the cross-sectional area of the lateral orifice 8 or 9 of the inlet (or outlet) nozzle 2 (or 3);

Ap is the cross-sectional area of the exhaust pipe 3.

The engine works as follows.

When opening the outlet of the cylinder 1, the pressure waves generated by the piston move along the outlet nozzle 3 to the side opening 9. At the location of the opening 9, the pressure waves are converted into rarefaction waves, moving

0

0

five

0

5 Q

five

50

55

pressure waves, which, moving along orifice 9, are again transformed by taking a mass of gas from the high pressure zone to the exhaust manifold 5. Leaving some of the pressure waves, passing through the gas inlet 13 and reaching the exchanger channels 7 pressure, passes into it and transforms into pressure waves of fresh charge. These waves then move along the air-inlet nozzle 12 of the exchanger 7 to the side opening 8 of the inlet nozzle 2, where they are transformed by taking the charge mass from the high-pressure wave zone into the inlet receiver 4 and feeding the tail part of it into waves of the cylinder inlet bodies one.

Part of the mass of gas, penetrating into the exhaust manifold 5, enters the gas inlet pipe 11 of the turbocharger 6, causes it to rotate. At the same time, the air is additionally compressed in the compressor and through its air-inlet nozzle 10 enters the inlet receiver 4, increasing in it the average level of pressure due to this pressure. At the times between pulses, the pressure exchanger 7 is purged from the residual gases and removed through the exhaust pipe to the exhaust manifold 5.

Thus, by using the energy of the pressure pulses, the mass of fresh charge in the cylinder 1 is increased, the loss of the available energy of the exhaust gases is reduced, and the efficiency of the engine is increased.

Claims (2)

1. A supercharged internal combustion engine comprising at least one cylinder with inlet and outlet connections and an air intake manifold provided with an inlet receiver connected to each inlet manifold, a exhaust manifold provided with an exhaust manifold communicated with each exhaust manifold, at least one turbocompressor and at least one wave pressure exchanger, the air-pressure pipes of which are connected to the inlet receiver, and the gas inlet pipes are connected to the gas outlet In order to increase efficiency by improving the use of pressure pulses, the cylinder outlet pipes are each made with a side opening and each are connected to the gas inlet pipe of one of the pressure wave exchangers, the cylinder inlets are each made with a side hole and connected to the air inlet pipe one of the pressure wave exchangers, intake receiver and engine exhaust manifold are made 1474302 3 4 each in the form of a container, covering -D ° of the lateral opening of the nozzles, respectively, inlet and outlet nozzles according to the ratio cylinder cylinder in the area of the side holes, 2,5, 25 Ftp, and the gas inlet and air-pressure pipes, where F0 is the cross-sectional area of the side opening of the turbocharger connected to these 5 inlets or outlets tank m.pipeka;  2. The engine according to claim 1, wherein the FVP is an outlet cross-sectional area, which is the flow area of each tube.