JPS6345408A - Cylinder oiling device for internal combustion engine - Google Patents

Abstract

PURPOSE:To prevent inferior lubrication in starting and any abnormal wear of a cylinder liner by branching operating air from the route of compressed air supplied under pressure from a high pressure air reservoir in starting for performing a constant oiling per one time just before the starting. CONSTITUTION:When a opening/closing valve 5 is opened to start an engine, compressed air is supplied to a cylinder 7 from a high pressure air reservoir 4 through a starting air main pipe 6. Since, at this time, the compressed air in the starting air main pipe 6 is simultaneously supplied to a power cylinder 3 through a branch pipe 8 and an electromagnetic valve 13, the pinion 2 of an oiling device 15 is driven through the rack 10a of a shaft 10 connected to a piston 9 for supplying cylinder oil to the cylinder 7. And when a projection 14 makes contact with a limit switch 11a due to a stroke of the rack 10a, an electromagnetic valve 12 is opened and the piston 9 is returned by a returning spring 16 and electromagnetic valve 13 is shut off.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a cylinder lubrication device for a combustion engine.

[Conventional technology]

FIG. 2 shows a conventional cylinder lubricator. During engine operation, the lubricator 15 is rotated via a motor gear 1 connected to a crankshaft or camshaft (not shown), and ring oil is supplied to the cylinder through a lubricant pipe 15a. supplying.

However, empirical and experimental studies have shown that sufficiently distributing lubricating oil to the sliding surfaces of the cylinder liner before starting or immediately after stopping the engine has an extremely important effect on preventing cylinder liner wear. It is well known. Therefore, in the conventional example, as shown in FIG. 2, the engine operator lubricates the cylinder each time using the manual handle 3 or the like.

[Problem that the invention seeks to solve]

However, conventionally, cylinder lubrication when starting and stopping an engine has been left to the judgment of the person operating the engine. There are many operations required before starting the engine, such as checking the operation of not only the engine but also auxiliary equipment, and in some cases people forget to turn the cylinder lubricator by hand to supply lubricating oil into the cylinder before operation. It is quite possible that this can happen.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cylinder lubrication device for an internal combustion engine that eliminates the problems of the conventional device and eliminates the problems by automating cylinder lubrication before startup.

[Means for solving problems]

23rd day of the year in Russia J-Ca ・Shinjin-R worship place
〔No 'y' II N4ゝ Nlord, Nyu Ren Jin Shin - Instead of manually operating the cylinder lubricator before starting the engine, he operates the lubricator cylinder, which is driven by the starting air. Furthermore, a rack cut into a shaft connected to the piston in the feeder cylinder and a pinion provided at one end of the drive shaft of the cylinder lubricator are engaged with each other.

[Effect]

When starting air is supplied to the power cylinder, the piston in the power cylinder operates and drives the 7-cylinder lubricator, so that the engine cylinder can be automatically lubricated before starting.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

A drive gear 1 driven by a crankshaft (not shown) is installed at one end of the lubricator 15, and a ratcheted pinion 2 is installed at the other end of the lubricator 15. The engine starting air tank 4 meshed with the cut-out rack 10a and the starting air main pipe 6 that supplies starting air to each engine cylinder 7 are communicated via an on-off valve 5, and the starting air main pipe 6 and The power cylinder 3 communicates with a branch pipe 8 having a solenoid valve 13 that is open when the power is not energized, and the power cylinder 3 is connected to the solenoid valve 1 that is closed when the power is not energized.
It communicates with the outside air via 2. - A spring 12 is inserted into the opposite cylinder side of the piston of the power cylinder 3, and a projection 14 is provided at the opposite end of the piston shaft 10. Limit switches lla and llb are provided so as to be in contact with each other at the position and the operation start position, respectively. Also, it is turned on and off by limit switches 11a and llb, respectively.
The relay (not shown), the solenoid valves 12 and 13, and the power source form a closed circuit.

When the protrusion 14 contacts the limit switch lla, the relay closes and current flows to the solenoid valve 12.13, and when the protrusion 14 contacts the limit switch llb, the relay opens and the current to the solenoid valve 12.13 is cut off. It has become.

Next, the operation of the above embodiment will be explained.

supply. At this time, the compressed air in the main starting air pipe 6 is simultaneously supplied into the cylinder 3, so that it is supplied to the lubricating device 14 through the rack 10a of the shaft 10 connected to the piston 9.
The pinion 2 of the cylinder is driven to supply cylinder oil to the cylinder. The piston 9 slides sufficiently to the left and the protrusion 14 on the shaft 10
When contacting the limit switch lla, a relay (not shown) is turned on and current flows to the solenoid valves 12 and 13. When current flows through the solenoid valves 12 and 13, the solenoid valve 12 that communicates the cylinder with the outside air is opened and the compressed air in the cylinder 3 flows to the outside, and the force of the return spring 12 causes the piston 9 to slide to the right and return to its original position. Return to position. At this time, the solenoid valve 13 in the branch pipe 8
Since a current flows through and closes the tank 4, the compressed air in the air tank 4 does not wastefully flow out.

Note that when the piston 9 of the power cylinder 3 moves to the right and reaches near the end point, the protrusion 14 is activated by the limit switch ll.
When it comes into contact with b, the relay turns OFF, the Ichihara to both solenoid valves is cut off, the solenoid valve 12 closes, and the solenoid valve 13 opens at 7 and returns to the initial state, and the cycle is repeated continuously during the engine starting operation. lubrication can be continued.

It is also possible to continuously move the piston of the power cylinder 3 from side to side by switching the valve from the working air source to the power cylinder.

〔Effect of the invention〕

The pressure oil system for cylinders of an internal combustion engine according to the present invention is capable of supplying oil to the engine cylinders before starting the engine by forcefully sending the compressed air that was sent to the starting air main pipe 6 during the starting operation to the power cylinder.゛It is definitely possible to realize it,
It is possible to prevent poor lubrication due to forgetting to lubricate before starting, and the resulting abnormal wear of the piston ring and cylinder liner.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic explanatory diagram of a cylinder lubricating device for an internal combustion engine according to the present invention, and FIG. 2 is a front view of a conventional lubricating device.・1...Air tank, 6...Nyusei system line (starting air main pipe)
lubricating means.

Claims (1)

[Claims] In systems that lubricate the cylinders of internal combustion engines, working air is branched from the compressed air line that is pumped into the cylinders from a high-pressure air tank at startup, and a fixed amount of air is driven by the working air and pumped into the cylinder just before the engine starts. A cylinder lubricating device for an internal combustion engine, comprising a lubricating means for lubricating the cylinder.