SU1328565A1 - Internal combustion engine - Google Patents

Abstract

The invention relates to the field of mechanical engineering and reduces the detonation of an engine. The bypass channels (PC) 10, the common chamber of the prechamber (F) 8 with the main camera 1, are located tangentially F 8. The total cross-sectional area of PC Yu is 2.5-4.5 mm - per 1000 mm of F 8. At postunley mixture in F 8 through PC 10 charge F 8 is attached to the rotational motion relative to its longitudinal axis, which increases the degree of homogenization of the mixture and concentrates the lightest components of it in the area of the spark gap of the ignition 9. The mobility of the combustible mixture in the spark gap of the spark plug 9 is kept low, which provides favorable conditions for the formation of the initial burning point. 3 il. (L oo y 00 SP O5 SP

Description

The invention relates to machining, in particular to engine construction, and HiMeHHO to internal combustion engines.

The purpose of the invention is to reduce detonation.

FIG. 1 shows the described engine; in fig. 2 - section AA on. one; in fig. 3 shows a section BB in FIG. one.

The engine contains a main combustion chamber 1 formed by a fire day 1 2 heads 3, a wall 4 of cylinder 5 and a bottom 6 of a piston 7 placed in cylinder 5, and a prechamber 8 shaped like a body of rotation, equipped with a spark plug 9, electrodes (not shown) are aligned with the axis of the pre-chamber 8, and communicated with the main chamber 1 by means of bypass channels 10 located tangentially to the pre-chamber 8, the total cross-sectional area of the channels 10 being 2.5-4.5 mm - per 1000 mm of the volume of the pre-chamber 8

The device works as follows.

During the compression stroke with an increase in pressure in the main combustion chamber 1, the fuel-air mixture enters the prechamber 8 through tangential nepenycKHijie channels 10, while the charge of the prechamber 8 is imparted with a rotational motion about its longitudinal axis. The rotational movement of the mixture increases the degree of homogenization and concentrates the lightest components of the combustible mixture in the area of the spark gap of the spark plug 9. Mobility

Aa

the combustible mixture in the spark gap of the ignition plug 9 is kept low, which provides conditions for the formation of the initial source of combustion.

After forced ignition of the prechamber chamber 8 by the spark plug 9, the temperature and pressure in the prechamber 8 increase and the burning products of the prechamber chamber 8 are released into the combustion chamber 1 through channels 10 directed to

the most distant points of the main chamber 1. From the jets of burning products, the mixture of charge of the combustion chamber 1 ignites and the working process takes place in the cylinder 5 of the engine.

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five

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Claims (1)

Invention Formula The internal combustion engine containing the main combustion chamber formed by the head fire head, cylinder walls and the bottom of the piston placed in it, and a prechamber in the shape of the body of rotation equipped with a spark plug with electrodes placed on the axis of symmetry of the prechamber and communicated with the main chamber by means of bypass channels, the main camera using bypass channels, characterized in that, in order to reduce detonation, the channels are located tangentially to the prechamber and the total cross-sectional area channels is 2.5-4.5 mm per 1000 mm prechamber volume. I bb (Pus. G Fig.:;