JPH0252013A - Integrated separation removal device for solid and/or gas foreign matters in liquid - Google Patents

Abstract

PURPOSE:To guide liquid after removing solid removing foreign matters into a swirl flow chamber by means of a filter device section, separate gas foreign matters in the liquid and the liquid itself and remove simultaneously and efficiently solid foreign matters and liquid foreign matters by a compact device by providing a filter device section, a swirl flow chamber and a gas foreign matter removal tube. CONSTITUTION:A filter device consisting of a filter element reinforcing cylinder 3, a filter element 2 and an inner perforated disk 16 with encircling an isolated cylinder 4 on a check valve 1 mounted on the bottom of the device. A swirl flow chamber wall 13 of reverse conical shape is fixed onto the upper section circumference of the isolated cylinder 4, and a gas foreign matter removal tube 9 is mounted almost close to a center shaft of the swirl flow chamber 6. Liquid such as lubricant or the like passes through the check valve 1 and flows from the outside to the inside of the filter element 2 to remove the solid foreign matters. Then, the liquid comes into the swirl flow chamber 6 through a swirl flow duct 7 to generate a swirl flow separated by the difference of specific gravity, and the liquid including much of gas foreign matters passes through gas foreign matter removal pores 8 and a removal tube 9 to be removed out of the device, while purified liquid flows out of a fluid flow outlet 15.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus for separating and removing solid and/or gaseous foreign substances in a liquid in an integrated apparatus.

(Prior art) Conventionally, in prime movers, industrial machine tools, construction machines, transportation machines, etc. that include many hydraulic devices, in which liquids such as lubricating oil have been circulated, liquids, such as lubricating oil, have been used in circulation for the purpose of removing solid foreign matter from the lubricating oil. Filter-type filters and centrifugal filters have been used, while methods for removing gases floating or dissolved in lubricating oil include deaeration methods that utilize gas buoyancy, vacuum deaeration methods, and centrifugal force. Methods such as deaeration methods (e.g.,
23803 and Japanese Patent Publication No. 61-36444) have been used, but the removal of solid foreign matter and the removal of gas have been performed using separate devices.

(Problems to be Solved by the Invention) Conventionally, in prime movers, industrial machine tools, construction machinery, transportation machines, etc. that include many hydraulic devices, in which liquids such as lubricating oil have been circulated, solid foreign matter in the lubricating oil and Removal of gaseous foreign substances has been carried out in separate devices or locations, but in cases where space is at a premium, there has been a desire for a device that efficiently fulfills both functions and can be used in a small space.

Taking prime movers as an example, in the prime movers of modern passenger cars and two-wheeled vehicles, the number of rotations and output tend to rise significantly, and at the same time, excessive air bubbles are mixed into the oil, causing excessive wear in the engine and damage to the valve train. There have been reports of problems such as malfunction of the hydraulic lifter used. Machines equipped with a prime mover, such as passenger cars and motorcycles, generally have extremely limited storage space for the prime mover, and under these circumstances, filtration devices to remove solid foreign matter from the oil and Providing a separate device for removing air bubbles, ie, gaseous foreign matter, is difficult in terms of space and reduction in size.

This situation also applies to machine tools, construction machines, transportation machines, etc. in which various hydraulic actuation devices and hydraulic control devices are incorporated.

The present invention is a compact integrated separation system for solid and/or gaseous foreign substances in a liquid that can efficiently remove solid foreign substances and gaseous foreign substances in a liquid at the same time, and the storage space is almost the same as that of a conventional filtration device. The purpose is to provide a removal device.

(Means for Solving the Problems) In order to achieve the above object, in the integrated separation and removal device for solid and/or gaseous foreign matter in a liquid of the present invention, a liquid containing solid and/or gaseous foreign matter that is pumped is provided. After filtering, a swirling flow chamber is provided to cause a swirling flow in the liquid containing gaseous foreign matter, and the liquid from which solid foreign matter and gaseous foreign matter have been removed, which collect at the outer edge of the swirling flow due to the difference in specific gravity, is provided on the wall of the swirling flow chamber. On the other hand, by guiding the liquid containing gaseous foreign matter that collects at the central axis of the swirling flow out of the device through an appropriate conduit pipe and/or through hole, solids in the liquid and/or This allows gaseous foreign substances to be separated and removed simultaneously and efficiently and continuously.

Moreover, the important point of this device is that it filters the liquid containing solid and/or gaseous foreign matter, and after removing the solid foreign matter, introduces it into the swirling flow chamber. There is no need to worry about the holes becoming clogged with solid foreign matter.

A pressure control valve may be provided on the outer periphery of a hollow disk attached to the top of the filtration layer element of the device.

A pressure control valve may be provided in a part of the gaseous foreign matter removal pipe and/or the communication hole of the device.

A cooling device for cooling the lubricating oil containing solid and/or gaseous foreign matter may be provided on the wall surface and/or the outermost wall of the swirling flow chamber of the device.

(Function) In the integrated separation and removal device for solid and/or gaseous foreign substances in a liquid configured as described above, when the liquid is pumped into the device by the pump, the liquid passes through the check valve and is filtered through the filtration device. By flowing from the outside to the inside of the layer element, it is filtered to remove solid foreign matter.

The liquid from which solid foreign matter has been removed passes through the outside of the isolation cylinder to the swirling flow chamber, and from there enters the swirling flow chamber through the swirling flow conduit, where it is violently swirled and its density is reduced. The liquid separated by the difference and containing a large amount of gaseous foreign matter gathers at the center of the swirl flow, passes through the gaseous foreign matter removal small hole and the gaseous foreign matter removal tube, and is removed to the outside of the device.

On the other hand, the liquid that does not contain gaseous foreign matter gathers at the outer edge of the swirling flow chamber, is guided into the inside of the isolation cylinder through the small liquid outflow hole, and flows out of the liquid outflow port as a purified liquid.

(Example) Examples experimentally produced for a four-cycle gasoline passenger car and a motorcycle will be described below, but the present invention is not limited thereto. Explaining with reference to the drawings,
In FIG. 1, the device has a substantially cylindrical appearance, a check valve (1) is provided at the bottom of the inside, and an isolation cylinder (1) is provided on the bottom of the device.
4), and in a shape surrounding this isolation cylinder (4), a medium-heated hole for fixing the filtration element reinforcing cylinder (3), the filtration element (2), and the upper and lower ends of the filtration element. A filtration device consisting of a disc (16) is provided.

A swirling flow chamber wall (13) in the shape of an inverted conical cylinder is fixed on the upper circumference of the isolation cylinder (4). ；Art swirling flow room (
6), a two-turn flow conduit pipe (7) is attached tangentially to the bottom side of the inside. In addition, near the center axis of the swirling flow chamber (6), a gaseous foreign matter removal tube (9) having a large number of small holes (8) for removing gaseous foreign matter is connected to the bottom surface of the swirling flow chamber (6). 10) and attachment through the outer wall (11) of the device.

In addition, in the swirling flow chamber (6), a large number of liquid outflow small holes ( 14) is open.

A liquid outlet (15) is provided at the bottom of the device on an extension of the apex of the swirling flow chamber (6).

At the top of the filtration element (2), place a medium-heated disc (16
), but the circumferential portion of this medium-fired disk (16) extends to the outer wall of the device, and the outer wall (
11) is sealed with a circle (18).

The space between the upper outer wall (11) of the device and the medium-heated disc (16) is defined as a swirling flow preparation chamber (5).

Furthermore, as a safety measure in case the filtering element (2) becomes clogged, a pressure control valve (17) is provided on the outer periphery of the medium-heat perforated disc (16).

Note that the bottom surface (10) of the swirling flow chamber and the outer wall (10) of the device
1), a fixing spring (19) for the swirling flow chamber (6) is attached.

(Effects of the Invention) Since the present invention is configured as described above, it produces effects as described below.

The first effect is that not only solid foreign matter in liquids, such as lubricating oil, but also gaseous foreign matter such as air bubbles can be instantly removed. The device exhibits an extremely advantageous effect on the lubrication conditions in motorcycles and motorcycles. In other words, by installing this device, not only can abnormal wear caused by solid foreign matter be prevented, but also gaseous foreign matter can be removed, making the operation of hydraulic valve lifters that are often installed in engines smoother, and it is also possible to prevent contained air bubbles. Since oil starvation on the high-speed sliding bearing surface caused by this can be prevented, excessive wear due to this oil starvation can be prevented.

The second effect is that we can expect promising developments in future engine design. In other words, the current maximum engine speeds for four-wheeled passenger cars and motorcycles are 7,000 rpm and 2,000 rpm, respectively.
0,000 rpm, but in these engine speed ranges, an excessive amount of air is seen mixed into the engine oil, and this mixed air causes an oil starvation phenomenon on various lubricating surfaces in the engine, causing excessive wear. There are many things that are done. Therefore, if air mixed in oil, ie, gaseous foreign matter, can be removed by installing this device, it would be possible to design an engine for a higher rotation range.

The third effect is that it is effective in preventing oxidative deterioration of liquids, for example chemical raw materials such as lubricating oil and liquid hydrocarbons that are easily oxidized.

The fourth effect is that non-uniformity of the product due to gaseous foreign matter in the liquid can be prevented. For example, with various film coating solutions, it is necessary to extremely avoid non-uniformity of the film coating surface due to air bubbles, and the device exhibits an excellent effect of removing air bubbles, that is, gaseous foreign matter, under such conditions.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention. non-return valve a common element Cylinder for reinforcing filtration element isolated cylinder Swirling flow t$ equipment room swirling flow chamber Conduction pipe for swirling flow Small hole for gaseous foreign matter removal Gaseous foreign body removal tube Bottom of swirling flow chamber External wall of the device Swirl flow chamber and fixed part of isolation cylinder swirling flow chamber wall Small hole for liquid outflow liquid outlet medium heat disc pressure control valve 0 ring Fixing spring

Claims (1)

[Claims] It is a device that can continuously remove solid foreign matter and gaseous foreign matter from a liquid, and its basic composition is a filter device part for removing solid foreign matter, and a gaseous foreign matter in a liquid containing gas after being filtered. and a swirling flow chamber for separating the liquid from the swirling flow chamber, and a gaseous foreign matter removal tube provided approximately at the central axis of the swirling flow chamber, and does not contain the gas separated in the swirling flow chamber. An integrated device for separating and removing solid and/or gaseous foreign substances in a liquid, characterized in that the liquid can flow out continuously from the swirling flow chamber.