SU1477919A1 - Four stroke four cylinder ic-engine - Google Patents

Abstract

FIELD OF THE INVENTION used in devices for ejection pressurization and gas cleaning of residual gases of cylinders of an internal combustion engine. The purpose of the invention is to increase the efficiency of engine performance by utilizing the energy of exhaust gases to remove residual gases from engine cylinders. The active nozzle 12 of the ejector 6 suction of residual gases is connected to the outlet 13 of the gas exhaust manifold 2, and the passive nozzle 14 communicates with the channels (K) 5 of the suction of residual gases. The latter are connected to the outlet nozzles 10, each of which communicates with the cylinder 4 through the valve 11. The central bore 8 of the rotating spool 7 is in communication with the radial K 15. The spool actuator is designed as a kinematic connection with the power take-off shaft 9 with a gear ratio of 1: 4. The nozzle 14 communicates with the orifice, and K 15 is adapted to alternately communicate with K 5. This embodiment allows the removal of residual gases from the cylinders and its stagnant zones. This also creates a large vacuum at the suction, which leads to an increase in speed in the inlet pipe. The increase in the kinematic energy of the air column leads to an increase in the degree of inertial pressurization and cylinder filling. 1 il.

Description

The invention relates to mechanical engineering, namely to engine building, and can be used in devices for ejection pressurization and cleaning of residual gases of cylinders of an internal combustion engine.

The aim of the invention is to increase the effective performance of the engine by using the energy of the exhaust gases to exhaust the residual gases from the engine cylinders.

The drawing shows a diagram of the proposed engine.

The engine contains pistons 1, a gas exhaust manifold 2, exhaust pipes 3 of the cylinders 4, channels 5 for suctioning the residual gases, an ejector 6 for suctioning the residual gases, and a rotating spool 7 with a drive (not shown) and a central bore 8. Pistons 1 are connected to the power take-off shaft 9 . The gas outlet manifold 2 is connected to the exhaust pipes 3 of the cylinders 4. The channels 5 for exhausting the residual gases are connected to additional exhaust pipes 10, each of which is in communication with the cylinder 4 through the shutoff member 11. The active nozzle 12 of the ejector 6 of the residual gas suction is connected to the outlet 13 of the exhaust manifold 2, and the passive nozzle 14 (rarefaction chamber) is in communication with the channels 5 of the residual gas suction.

The Central hole 8 of the spool 7 is in communication with the radial channel 15. The drive of the spool 7 is made in the form of a kinematic connection with the shaft 9 power take-off and with a gear ratio of 1: 4. The passive nozzle 14 of the ejector 6 is communicated with the Central hole 8, and the radial channels 15 of the spool 7 are made with the possibility of alternate communication with the channels 5 of the suction of residual gases from the cylinders 4.

The engine operates as follows.

Pistons 1 moving in the cylinders 4 perform air intake, compression, expansion and exhaust gas cycles in the exhaust manifold 2. The energy of fuel combustion is transmitted to the power take-off shaft 9. The exhaust gases from the collector 2 through the outlet 13 enter the active nozzle 12 of the ejector 6. The gases flowing from it at high speed create a vacuum in the chamber and in the passive nozzle 14, which is connected with the Central hole 8 of the rotating valve 7.

In a four-cylinder four-stroke engine, the suction stroke in one of the cylinders 4 simultaneously accounts for the exhaust stroke in the other cylinder 4. When the shut-off element 11 (valve) is opened at this moment, the additional exhaust pipe 10 communicates through the residual gas exhaust ducts 5 ⁵ and the radial channel 15 in the spool 7 with the passive nozzle 14 of the ejector 6. The opening of the channel 5 belonging to the cylinder 4, in which .. a suction stroke occurs, allows the extraction of residual gases from the cylinder 4 and its stagnant zones. This also creates a greater vacuum at the suction, which leads to an increase in speed at the inlet pipe. An increase of 15 kinetic energy of the air column leads to an increase in the degree of inertial pressurization and filling of the cylinders 4. The opening of only one channel 5 for suction of residual gases allows extending the rarefaction period to a limited volume of 20 air, which more fully realizes the energy of the exhaust gases and rarefaction in the ejector 6.

Improved cleaning and filling of cylinders 4 leads to an increase in engine performance.

Claims (1)

Claim A four-cylinder four-stroke internal combustion engine containing pistons connected to the power take-off shaft, a gas exhaust manifold connected to the exhaust pipes of the cylinders, exhaust gas suction channels connected to additional exhaust pipes, each of which is connected to the cylinder through an overlap, and a suction ejector residual gases, the active nozzle of which is connected to the outlet of the exhaust manifold, and the passive is in communication with the suction channels of the residual gases, characterized by 4 0 by the fact that, in order to increase effective indicators by using the exhaust energy to exhaust residual gases from the cylinders, the engine is equipped with a rotating spool with a drive and a central 45 hole in communication with the radial channel. scrap, the spool drive is made in the form of a kinematic connection with the power take-off shaft and with a gear ratio of 1: 4, with the passive nozzle of the gas ejector communicating with the central hole, and the radial channel of the spool is made with the possibility of alternating communication with the suction channels of the residual gases from the cylinders.