SU372365A1 - DEVICE FOR SUPPLY OF AIR IN INTERNAL COMBUSTION ENGINE - Google Patents

Description

one

The invention relates to engine building.

Devices are known for supplying air to an internal combustion engine with a combined pressurization system, comprising a line for bypassing air from the inlet pipe of a disconnected second stage supercharger to a pressure pipe connected to the engine receiver and a locking member installed in the line.

Since, in the known devices, a second stage volumetric type supercharger is used, when the supercharger is disconnected and the shut-off organ installed in the line is opened, air circulation through the supercharger is practically excluded. In engines with a disconnected blade compressor, such a device does not prevent air from circulating through the open channels of the flow section of the supercharger, which reduces the efficiency of the pressurization system.

iB of the proposed device, the closure member is made in the form of a rotary valve placed at the junction of the main with the discharge nozzle to shut off the nozzle when the blower is disconnected.

FIG. 1 shows the device, a general view; in fig. 2 - engine turbocharging system (schematically).

The locking body 1, made in the form of a rotary valve, is located at the junction of the line 2 with the discharge port 3 of the disconnected supercharger 4 of the second stage of the engine 5. The system of the engine induction is combined and contains the first stage of the turbochargers 6 installed in parallel with the second stage inlet 7 pressurization by means of pipelines 8. Air from the inlet pipe is bypassed to the discharge pipe pipe communicated with the receiver 9 of the engine through a line filled with air in the form of a pipe. o 10 (as pressure pipes

also two). In each of the pipelines placed rotary valve. Air-cooled air filters are located between the pipe and the receiver. The actuator 12 of the supercharger is equipped with a tripping coupling 13.

When the blower is on, the air compressed in the compressor part of the pipe compressor passes into the inlet of the second stage blower. After being compressed in the supercharger, it is fed to the engine receiver. Each rotary valve blocks the pipeline pipeline (the position of the valve is shown by a dotted line above the line). At the time of shutdown of the blower valve

rotates and retracts the discharge port. In the drawing, the position of the valve when the blower is turned off is indicated by a solid line. The air from the turbochargers enters directly into the engine receiver, which is the drive supercharger. The valve eliminates air leakage through the open channels of the supercharger.

In this way, the described device allows the use of a more efficient paddle type compressor as a switchable second stage blower and an increase in the efficiency of the device for supplying air to the engine.

Object of the Invention A device for supplying air to an internal combustion engine with a combined "adduv" system, comprising a line for bypassing air from the inlet pipe of a second stage shut-off blower to a pressure pipe connected to the engine receiver and a stop valve installed in the line, in order to increase efficiency, the shut-off valve is in the form of a flush-mounted pipe at the junction with the discharge port of a butterfly valve to shut off the nozzle when the blower is disconnected .

(//, u /