SU1513162A1 - Lubricating system for ic-engine - Google Patents

Abstract

The invention relates to mechanical engineering and permits an increase in the reliability of the engine operation by guaranteeing the supply of oil to the crankshaft main and crankpin necks while simultaneously reducing the pressure in the crank chamber. When the piston 4 travels to the bottom dead center, crankcase gases rush out of the crank chamber 9 into a separate chamber 8 through the opening 10, trap oil particles, and through channel 12 enter the deaf radial hole 14 in the main journal 13 of the crankshaft 2, where particles are separated oil from crankcase gases and their accumulation at the blind end of the hole 14 due to the centrifugal force that occurs during the rotation of the crankshaft 2. From the blind hole 14 through the channel 16, oil is supplied to the crank pin 15 of the crankshaft. 3 il.

Description

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The invention relates to mechanical engineering and can be used in internal combustion engines.

The aim of the invention is to increase the reliability of the engine.

FIG. I shows the engine when the piston moves to the bottom dead center, a section along the cylinder; in fig. 2 - the same, at the moment of piston movement to the dead center; in fig. 3 shows section A-A in FIG. one.

10, oil is supplied through channel 16 to the surface of the crank pin 15 of the crankshaft 2. The bearings 3 of the crankshaft 2 are lubricated with oil mist present in the crank chamber 9.

Claims (2)

Invention Formula An internal combustion engine lubrication system containing a crank chamber, oil pan, crankcase, in the wall of which The lubrication system consists of a crankcase 1, in which the crankshaft 2 is mounted on bearings 3. The crankshaft 2 is connected to the piston 4 by means of a connecting rod 5. At the bottom of the crankcase there is an oil pan 6c 6. At the top of the oil pan 6, a chamber 8 is made which is connected with the crank chamber 9 by means of the bore 10, and with the oil pan with the bore of the bore 11. In the crankcase 1 A vertical channel 12 is made, the leading 20 is a channel made, a crankshaft, having from chamber 8 to the main journal 13 a knee axial channel in the main journal connected by a channel in the shaft body to the surface of the crank neck and mounted on bearings in the crankcase. a channel in the crankcase wall communicates with an axial channel in the crankshaft main neck, characterized in that, in order to increase the reliability of the engine, a blind radial hole is made in the main crankshaft neck to a depth greater than 30 of its radius connected midway Twomey per- in / on the channel made in the neck and at nachi- nayushegos blind end of the radial openings, with the surface of the crankpin of the crankshaft and via a second channel, commencing closer to the entrance in the pressure of crankcase gases. At the same time, the radial orifice, through the horizontal, is the alignment of the vertical canal in the crankcase wall from the atmosphere 12 in the crankcase 1 with a deaf radial, in the oil pan is made with a separate hole 14 in the root neck 13 to the chamber communicating with - crankshaft 2, and channel 17 with a horizon in its upper part with a curvature channel 18 in the crankcase 1, a leading spike chamber, and a hole in the lower into the atmosphere. The crankcase gases rush to 40 parts with an oil sump, and the message 10 to the chamber 8 is returned from the crank chamber 9 through the orifice channel in the crankcase wall, partially filling the chamber with a radial hole in oil 7 flowing from the oil is the crankshaft main chuck with the travel pallet 6 through the hole 11 when the piston is moving to the bottom dead center. of the shaft 2, in which a blind radial hole 14 is made to a depth greater than the radius of the root collar 13. The radial hole 14 is connected to the surface of the cone-shaped cheek 15 by means of channel 16, starting at the blind end of hole 14, and with atmosphere by channel 17, starting closer to the entrance to the hole 14, and the horizontal channel 18 in the crankcase 1. The lubrication system works as follows. When the piston 4 moves to the bottom dead center, the volume of the crank chamber 9 decreases, respectively increases the piston 4 to the top dead center, trap oil particles and rush through the vertical channel 12 into the blind radial hole 14 in the main journal 13 of the crankshaft 2 and further through the channels 17 and 18 to the atmosphere. Oil particles, possessing inertial force, bypass the entrance to the channel 17, are deposited on the walls of the hole 14 and under the action of centrifugal force accumulate at its blind end, from where 0 oil is fed through channel 16 to the surface of the crank pin 15 of the crankshaft 2. The bearings 3 of the crankshaft 2 are lubricated with oil mist present in the crank chamber 9. Invention Formula The lubrication system of the internal combustion engine contains a crank chamber, an oil pan, a crankcase in the wall of which a channel is made, a crankshaft with an axial channel in the main journal connected with a channel in the crank shaft body and mounted on bearings in the crankcase the channel in the crankcase wall communicates with the axial channel in the crankshaft main neck, characterized in that, in order to increase the reliability of the engine, a blind radial hole is made in the main crankshaft neck, Its large radius, connected by means of the first / o channel, made in the neck and beginning at the blind end of the radial bore, with the surface of the crankshaft connecting rod neck and through the second channel, starting closer to the entrance to the radial hole, through the horizontal channel In the crankcase wall with the atmosphere, a separate chamber is made in the oil pan, communicating by means of opening in its upper part with a crank chamber, and a hole in the lower part with the oil pan, the vertical channel in the wall The crankcase communicates a chamber with a radial hole in the crankshaft main cheek during a piston stroke to the bottom dead center. sixteen P