JPH0299708A - Regeneration unit for cylinder oil - Google Patents

Abstract

PURPOSE:To make it possible to save cylinder oil and improve its lubricating performance and reliability by continuously installing a drain oil regeneration circuit equipped with a settling tank and a filter between a drain catcher and the oiling hole of a cylinder liner. CONSTITUTION:The drain oil collected in a drain catcher 5 is introduced in a settling tank 7 through a piping 6 by means of a booster pump 9. A mixture in drain oil is precipitated and removed by means of a settling tank 7, and the drain oil is discharged through a valved discharge pie 7a and then sucked up to a filter 10 through a piping 8. The drain oil is cleaned there, and the regenerated cylinder oil to which an appropriate amount of an additive is mixed passes a check valve 11; and at a cylinder tank 12, it is mixed in a fresh oil supplied through a piping 21 from a head tank 20. The regenerated cylinder oil mixed in a fresh oil is supplied to an oiling hole 16 through a piping 19 by an oiler 14 through a piping 13 so that the oil is put in the inner surface of a cylinder liner 1 and circulated. As the cylinder oil is thus reused, the lubricating efficiency of cylinder oil can be increased.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a cylinder oil recycling device applied to an internal combustion engine such as a large diesel engine.

(Prior art) Conventionally, in internal combustion engines such as large diesel engines, the inner surface of the liner, which is cylinder oil, is lubricated through a lubricant hole provided through the cylinder liner, and the inner surface of the liner and the sliding surface of the piston ring are lubricated. Most of the cylinder oil injected through the oil fill hole is burned and consumed, but some of the cylinder oil travels along the inner surface of the liner and falls from the bottom of the cylinder liner, and the drain oil flows through the drain piping system. The waste is collected in a drain tank and disposed of. There is no record of recycling or reusing the drain oil.

(Problems to be Solved by the Invention) In the conventional internal combustion engine, a part of the cylinder oil that is applied to the inner surface of the cylinder liner and lubricates the inner surface of the cylinder and the sliding surface of the piston ring is released from the lower part of the cylinder liner. It is discharged and disposed of as drain, and there are problems such as an increase in the amount of expensive cylinder oil used, which is one of the causes of high running costs.

The present invention was developed to address the above-mentioned problems, and its purpose is to collect and regenerate the drain oil at the bottom of the cylinder liner, and to improve the oil filling hole provided in the cylinder liner. It is an object of the present invention to provide a cylinder oil recycling device that improves the lubrication efficiency of cylinder oil, reduces cylinder oil consumption, and improves lubrication performance and reliability by circulating and supplying cylinder oil.

(Means for solving !J1 problem) The present invention provides an internal combustion engine such as a large diesel engine.
A drain catcher is provided at the bottom of the cylinder liner to collect the internal drain oil, and a tank for sedimentation of the drain oil and a filter are interposed between the drain catcher and the oil filling hole provided in the cylinder liner. It is characterized by a structure with a continuous circulation path, and the drain oil that falls to the bottom of the cylinder liner is collected by a drain catch, and the collected drain oil is regenerated by the sedimentation tank and filter in the drain oil regeneration circulation path. This automatically lubricates the inner surface of the liner through the lubrication hole and reuses it, increasing the lubrication efficiency and reliability of cylinder oil.

(Function) The drain oil of the cylinder oil in the cylinder liner is collected by the drain catcher installed at the bottom of the cylinder liner, and the collected r drain oil is sent to the sedimentation tank after passing through the drain oil regeneration circuit. After removing the precipitate,
It is cleaned and regenerated by a filter so that it can be reused, and the inner surface of the liner is filled with oil through the oiling holes provided in the cylinder liner, where it is circulated and reused.

(Embodiment) Fig. 1 shows a first embodiment of the present invention, in which (1) is a cylinder liner for an internal combustion engine such as a large diesel engine;
is a piston with a piston ring that reciprocates within the cylinder liner (1), (3) is a piston rod, and (4) is
This R-pack box is used in internal combustion engines such as large diesel engines, and is equipped with a drain catcher (5) at the lower part (1a) of the cylinder liner (1) to collect the internal drain oil. ) and the oil filling hole ae provided in the cylinder liner (1), there is a tank for settling the drain oil (7).
and a drain oil regeneration circuit (6,
8, 13, and 15) are connected to form a cylinder oil recycling device.

The drain catcher (5) is a cylinder liner (1)
The skirt portion of the piston (2), the piston rod (3) 1. <The arrangement is such that moving parts such as the packing box (4) do not interfere with each other, and the cylinder liner (1)
The structure effectively collects the drain oil that falls along the inner surface of the liner. The drain catch (5
) can adopt various designs and means in addition to the illustrated example, and it is desirable to have a design that does not introduce impurities such as the scavenging chamber drain (contains a large amount of water) as much as possible. Also,
In addition to collection by falling due to gravity, it is also possible to provide means for forcibly discharging the collected r-len oil to the drain oil regeneration circulation path using a pump or the like.

In the illustrated example, the drain catcher (5) is connected to the drain oil regeneration circulation path piping (6), which is a discharge port provided at the bottom of the drain catcher (5).
A discharge pipe (7) is connected to the oil regeneration circulation path (6, 8, 13, 15).
Sedimentation tank (7) with a), booster pump (9),
Filter α [, check valve (111), mixing tank (lz
, lubricating device α is successively installed, and the tip of piping α9 is connected to the oil filling hole (161) penetrated through the cylinder liner (1), and the new oil head tank ■ is connected to the check valve area. It is connected to the mixing tank az via the attached piping C1).

The drain oil collected in the drain catcher (5) is introduced into the sedimentation tank (7) via the piping (6) by the booster pump (9), and is then introduced into the sedimentation tank (7) by the sedimentation tank (7). After the mixture (impurities) is precipitated and removed and discharged through a valved discharge pipe (7a), it is sucked up into a filtration device a through a pipe (8), where it is cleaned and mixed with appropriate additives (not shown). ) to become recycled cylinder oil, and the recycled cylinder oil passes through the check valve αυ in the cylinder tank a, where it is mixed with new oil supplied from the head tank ■ through the piping with the check valve ■<21), Lubricator Q via pipe a3
4), the oil is supplied to the oil filling hole αe through the pipe (151), oil is applied to the inner surface of the cylinder liner (1), and the oil is circulated and reused.

FIG. 2 shows a second embodiment of the present invention. In the first embodiment, a branch pipe (C) is provided in the pipe 3υ of the new oil head tank (■), and the branch pipe (C) is used for fresh oil. Lubricating hole (c) of cylinder liner (1) via lubricant C side piping (c)
The feature is that the lubrication hole for new oil only is placed in the severely worn part of the cylinder liner, and the lubrication hole συ for recycled cylinder oil mixed with new oil is placed in the severely worn part of the cylinder liner. By disposing the cylinder liner in a portion of the cylinder liner where wear is relatively gentle, wear on the inner surface of the cylinder liner (1) and the sliding surface of the piston ring can be effectively reduced.

(Effects of the Invention) The present invention has the above-described configuration, and the drain oil in the cylinder liner is effectively collected by the drain catcher, and the collected drain oil is precipitated through the drain oil regeneration circuit. After the mixture (impurities) is precipitated and removed by the tank, it is cleaned and regenerated by a filter to become recycled cylinder oil, and the recycled cylinder oil is injected into the inner surface of the liner through the oiling hole provided in the cylinder liner. The cylinder oil is automatically circulated and reused, increasing the lubrication efficiency of the cylinder oil, reducing cylinder oil consumption, and significantly improving lubrication performance and reliability.

Therefore, the wear of the inner surface of the cylinder liner and the piston ring is greatly reduced, and the engine can be operated continuously for a long period of time, resulting in benefits such as reduced maintenance.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes may be made without departing from the spirit of the present invention. be.

[Brief explanation of the drawing]

FIG. 1 is a mechanical diagram showing a first embodiment of the present invention, and FIG. 2 is a mechanical diagram of main parts showing a second embodiment. 1 Rainbow liner 5: Drain catch 6.8,1
3, 15: Y Ren oil regeneration circulation path 7: Sedimentation tank
10: Filter

Claims (1)

[Claims] In an internal combustion engine such as a large diesel engine, a drain catcher for collecting internal drain oil is provided at the bottom of the cylinder liner, and a tank for settling the drain oil and a drain catcher are provided between the drain catcher and the oil filling hole provided in the cylinder liner. A cylinder oil recycling device characterized in that a drain oil recycling circuit is connected with a filter.