RU2099544C1 - Device for lubricating internal combustion engine - Google Patents

Abstract

FIELD: engine engineering. SUBSTANCE: lubricating device has unit-crankcase 1, crankshaft 2, and mechanism for lifting oil made up as gear wheel 5 that engages gear wheel 6. Gear wheel 5 has chute 7 for lifting oil. Web 8 of crankshaft 2 is provided with a ring groove connected with input passageway 9. Inside the groove shaped manifold 11 is received. The manifold has central opening to form a pocket. The ring groove is connected with space 10 through inlet passageway 9 that is covered with plug 12. In outlet passageway 13 in crankshaft 2 is nipple 14 whose end project in space 10. EFFECT: improved lubricating. 1 dwg

Description

 The invention relates to engine building, and in particular to lubrication devices for internal combustion engines (ICE).

A device for lubricating an internal combustion engine, comprising a crank chamber, a crankcase with oil, a crankshaft having channels for supplying oil to the rubbing surface of a pair of connecting rods, crankshaft [1]
The disadvantage of this design is the short-term purge of the crankshaft channels with oil vapors and the insufficient oil content in oil vapors.

The closest in technical essence is a device for lubricating a connecting rod bearing, mainly for internal combustion engines, containing a crankcase, an oil lifting mechanism, a crankshaft, on the cheek of which there is an annular groove with channels for supplying oil and a system of input and output oil channels, made in the crankshaft for supplying oil to the neck of the crankshaft, between which a cavity is formed [2]
The disadvantage of this device is the low oil pressure in the system of oil supply channels, the possibility of contaminants with oil getting to the lubricated surfaces, the pulsed flow of oil into the annular groove.

 The aim of the invention is to increase the efficiency of the lubricant by increasing the pressure in the lubrication system and improving the cleaning of oil from particles contaminating it.

 This goal is achieved due to the fact that in a device containing a crankcase, an oil lifting mechanism and a system of input and output oil channels made in the crankshaft for supplying oil to the neck of the crankshaft, between which a cavity is formed, and on the outside of the cheek a crank of the crankshaft is made an annular groove in communication with the input channel, in the annular groove is installed a profile oil manifold with a central hole, the crankshaft is equipped with a nipple, the end of which protrudes into the cavity, and p the distance from the axis of the crankshaft to the edge of the annular groove is made larger than the distance from the axis of the crankshaft to the axis of the input channel.

 Due to the fact that a collector is installed on the cheek of the crankshaft, the amount of oil increases, which leads to an increase in pressure due to the increased mass of oil in the centrifugal system, and due to the placement of an annular groove in relation to the inlet channel, a pocket is formed for collecting sludge from the oil. The supply of the system with a nipple installed in the crankshaft, the end of which protrudes into the cavity, contributes to additional oil cleaning. The tightness of the lubrication system provides isolation of the surrounding atmosphere from oil vapor.

 The invention is illustrated in the drawing.

 The device comprises a crankcase 1, in which a crankshaft 2 is mounted on bearings 3 and an oil lifting mechanism from the bottom of the crankcase 1. The oil lifting mechanism comprises a gear 5 located on the axis 4, which is engaged with a gear 6 made on the crankshaft the shaft 2. The gear wheel 5 is equipped with a tray 7 for raising oil by the teeth of the gear wheel 5. An annular groove "a" is made on the cheek 8 of the crankshaft 2, connected by the input channel 9 to the cavity 10. In the annular groove "a", a profile collector 11 with a central holes I eat with the formation of pocket "b". The cavity 10 is closed by a plug 12. In the output channel 13, made in the crankshaft 2, a nipple 14 is installed, the end of which projects into the cavity 10.

 The device operates as follows.

 When the engine is started, the gear wheel 6 of the crankshaft 2 sets in motion a gear wheel 5, which carries out the raising of oil by the teeth on the tray 7. In this case, the oil squeezed out by the teeth of the gear wheel 6 enters the annular groove "a" and spreads along it. Since the profile collector 11 prevents the ejection of oil, it accumulates in the groove "a". In this case, the sludge under the action of centrifugal force settles in the pocket "b". Upon reaching the level of the inlet channel 9, oil flows through it into the cavity 10, where it also flows under the influence of centrifugal force to the opposite end of the cavity 10 closed by a plug 12, flowing the end of the nipple 14 protruding into the cavity 10. When the level of the protruding end of the nipple 14 is reached, the oil through the channel 13 enters the surface of the neck of the crankshaft 2 and lubricates the friction surfaces of the neck of the shaft 2 and the connecting rod of the engine. In the cavity 10 is an additional cleaning of the oil from the remaining sludge.

Claims (1)

 A lubrication device for an internal combustion engine, comprising a crankcase, an oil lifting mechanism and a system of inlet and outlet oil channels made in the crankshaft for supplying oil to the neck of the crankshaft, between which a cavity is formed, and an annular ring is made on the outside of the crankshaft cheek a groove in communication with the input channel, characterized in that in the annular groove is installed a profile oil manifold with a central hole, the crankshaft is equipped with a nipple, the end of which protrudes t into the cavity, and the distance from the axis of the crankshaft to the edge of the annular groove is made larger than the distance from the axis of the crankshaft to the axis of the input channel.