SU1240933A2 - Pressure pulse converter for exhaust system of gas turbocharged internal combustion engine - Google Patents

Description

The invention relates to mechanical engineering, in particular to engine-building, and can be used in exhaust systems of gas-turbine supercharged internal combustion engines.

The purpose of the invention is to increase the efficiency of the conversion of pressure and mosquito pulses to the internal combustion engine.

FIG. 1 shows a pulse converter, a section; in fig. 2 is a section A-A in FIG. one.

The converter contains two exhaust manifolds 1 and 2 t with the same flow area, mixing nozzle 3 and movable partition wall 4. Exhaust headers 1 and 2 are connected to engine cylinders (not shown) with non-overlapping exhaust phases and to mixing nozzle 3 connected to the turbocharger (not shown). The dividing wall 4 is installed in the mixing pipe 3 at the point where the exhaust manifolds 1 and 2 are connected to it. The dividing wall 4 is installed on the axis 5 located at the point where the exhaust headers 1 and 2 are connected to the mixing pipe 3 can be turned around it. The converter is also provided with limiters 6 and 7 of the rotation of the dividing partition 4 by an angle, defined by us, the ratio of the minimum passages. 2

Compile. V. Kozlov

Editor M. DylynTehred I. VeresKorrektor T. Kolb

Order 3468/29 Circulation 523 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

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8 and 9 on either side of it between 0.3-1.0.

The converter works in the following way.

Exhaust gases from the engine cylinders flow into the exhaust manifolds 1 and 2, into the mixing tube 3, and from there into the turbocharger, which provides engine inflation. When the active gas flow passes through one of the collectors, for example I, and through its minimum flow area 8, under the action of the pressure difference, the partition 4 rotates up to the restrictor 7 towards the passive channel, which is the collector 2, and thereby reduces the area passage section 9. As a result, the gas is reduced into the passive channel and the ejection rate of the passive flow increases. In turn, an increase in the throughput area 8 of the collector 1 leads to a decrease in pumping losses in the cylinders, from which gases are currently released.

With the release of gases from the collector 2, the flow section 9 becomes active, the partition 4 turns in the direction of the collector to limiter 6 with the same effect. By making the ratios of sections 8 and 9 within the range of 0.3-1.0, the converter is also controlled during the fixed operating period.

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Claims (1)

PRESSURE PULSE CONVERTER FOR EXHAUST SYSTEM OF INTERNAL COMBUSTION ENGINE WITH GAS TURBINE PRESSURING according to ed. St. No. 1191611, characterized in that, in order to increase efficiency, it is equipped with limiters for turning the dividing partition by an angle that determines the ratio of the minimum passage sections on both sides of it within 0.3-1.0. FIG. 1 SU, 1240933