KR20150007843A - Inlet and Outlet Connection of Oil Cooler for Aluminium Material - Google Patents

Inlet and Outlet Connection of Oil Cooler for Aluminium Material Download PDF

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Publication number
KR20150007843A
KR20150007843A KR1020130082387A KR20130082387A KR20150007843A KR 20150007843 A KR20150007843 A KR 20150007843A KR 1020130082387 A KR1020130082387 A KR 1020130082387A KR 20130082387 A KR20130082387 A KR 20130082387A KR 20150007843 A KR20150007843 A KR 20150007843A
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KR
South Korea
Prior art keywords
inlet
pipe
outlet
oil cooler
flare nut
Prior art date
Application number
KR1020130082387A
Other languages
Korean (ko)
Inventor
권혁주
Original Assignee
주식회사 원진
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 주식회사 원진 filed Critical 주식회사 원진
Priority to KR1020130082387A priority Critical patent/KR20150007843A/en
Publication of KR20150007843A publication Critical patent/KR20150007843A/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H57/00—General details of gearing
    • F16H57/04—Features relating to lubrication or cooling or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/4165—Control of cooling or lubricating

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The inlet and outlet bosses formed on the oil cooler and having male threads formed on the outer circumferential surface and the end surfaces of the inlet and outlet bosses are formed so as to be able to prevent the aluminum materials generated in the joining portions from being separated from each other, There is provided an oil cooler inlet / outlet fastening structure of an aluminum material comprising a pipe in which a flared pipe-shaped portion is formed, and a flare nut which is screwed to a male thread formed on the inlet and outlet bosses and formed on the pipe, and a molybdenum sulfide layer is formed on the surface .

Description

Inlet and Outlet Connection of Oil Cooler for Aluminum Material [

The present invention relates to an oil cooler inlet / outlet fastening structure of an aluminum material, and more particularly, to an aluminum cooler inlet / outlet fastening structure for an aluminum cooler that is capable of preventing the aluminum material from being bonded to each other even when the flare nut is made of aluminum. And an inlet / outlet fastening structure.

Generally, an oil cooler is a device used for cooling a transmission oil in a vehicle. The oil cooler is divided into an air-cooled type in which air is cooled and a water-cooled type in which a cooling is provided inside a radiator.

The oil cooler is connected to a high-temperature pipe connected to the transmission and constituting a passage for supplying oil for cooling to the oil cooler, and a low-temperature pipe connected to the transmission and constituting a passage for moving the cooled oil toward the transmission.

The hot side pipe and the low temperature side pipe are assembled and connected to each other by using a screw connection to the inlet and outlet side bosses provided in the oil cooler. For example, the end of the high-temperature side pipe and the low-temperature side pipe are expanded in a flare shape, and the high-temperature side pipe and the low-temperature side pipe are connected to a male screw formed on the inlet- Assembled by threading the flare nut.

Korean Utility Model Laid-Open No. 20-1999-0020139, Laid-open Patent Publications No. 10-2009-0025408, No. 10-2009-0008792, No. 10-2012-0129557, etc., Side pipe and the low-temperature side pipe.

In recent years, both the inlet and outlet bosses of the high temperature side pipe, the low temperature side pipe, and the oil cooler have been changed to use aluminum material (including aluminum or aluminum alloy) for cost reduction, but only the flare nut is made of copper Or copper alloy).

This is because when the flare nut is made of an aluminum material and the flare nut is fastened to the inlet and outlet bosses of the same aluminum material cooler, there is a phenomenon of sticking between the inner surface of the flare nut and the expansion surface of the same aluminum pipe Therefore, the aluminum material can not be used for the flare nut.

That is, when the flare nut is screwed with the boss of the oil cooler while pressurizing the flare nut, a strong pressure is applied between the flare nut and the pipe. Due to the nature of the aluminum material, When the flare nut is further tightened, the removed part is dropped, scratches such as scratches are generated, and oil leakage occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a flare nut which is formed by forming a molybdenum sulfide layer on the surface of a flare nut, And an oil cooler inlet / outlet fastening structure of an aluminum material capable of making an oil cooler.

The oil cooler inlet / outlet fastening structure of an aluminum material according to an embodiment of the present invention includes an inlet and an outlet boss formed in an oil cooler and having a screw formed on an outer circumferential surface thereof, And a flare nut having a molybdenum sulfide (MoS 2 ) layer formed on the surface of the pipe, the pipe being screwed to a screw formed on the inlet and outlet bosses and formed on the pipe.

It is also possible to form a contact protrusion protruding along the circumference on the outer surface of the pipe expansion portion of the pipe.

It is also possible to form a molybdenum sulfide layer on the expanded portion of the pipe.

According to the aluminum material oil cooler inlet / outlet fastening structure according to the embodiment of the present invention, since the molybdenum sulfide layer is formed on the surface of the flare nut, even when the flare nut and the pipe are made of the same aluminum material due to the lubricating action of the molybdenum sulfide layer No sticking phenomenon occurs.

Therefore, scratches such as scratches do not occur between the flare nut and the expanded portion of the pipe, and it is possible to maintain the hermetic state of the coupling portion.

According to the embodiment of the present invention, it is not necessary to form the flare nut from a copper material, and since it is possible to apply an aluminum material, it is possible to reduce the manufacturing cost.

1 is a perspective view showing an oil cooler inlet / outlet fastening structure of an aluminum material according to an embodiment of the present invention.
2 is a partially enlarged cross-sectional view showing a state in which a pipe, a flare nut, and a boss are engaged in an oil cooler inlet / outlet fastening structure of an aluminum material according to an embodiment of the present invention.
FIG. 3 is a partially enlarged cross-sectional view showing an expanding portion of a pipe in an oil cooler inlet / outlet fastening structure of an aluminum material according to another embodiment of the present invention. FIG.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, preferred embodiments of an aluminum cooler oil cooler inlet / outlet fastening structure according to the present invention will be described in detail with reference to the drawings.

The present invention can be embodied in various forms and is not limited to the embodiments described below.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings, wherein like numerals refer to like elements throughout.

Hereinafter, the aluminum material is understood to include aluminum, aluminum alloy, and the like.

1 and 2, the inlet and outlet bosses 14 formed in the oil cooler 12 and the outlet and outlet bosses 14 formed in the oil cooler 12 form a flare- A pipe 18 in which the tube portion 19 is formed and a flare nut 20 in which the molybdenum sulfide layer 26 is formed.

Screws are formed on the outer circumferential surface of the inlet and outlet bosses 14.

The tube portion 19 is formed at the end of the pipe 18 and is in surface contact with the end surface of the inlet and outlet bosses 14 formed in the oil cooler 12.

The flare nut 20 is installed on the pipe 18 and forms an inner surface so as to be in close contact with the flare-like expanded portion 19.

The inner circumferential surface of the flare nut 20 is formed with a threaded portion that is screwed with a screw formed on the inlet and outlet bosses 14. [

On the surface of the flare nut 20, a molybdenum sulfide layer 26 is formed.

The molybdenum sulfide layer 26 is a molybdenum coating for obtaining a coating by thermally curing a functional paint prepared by dispersing molybdenum sulfide (MoS 2 ) powder and a special pillar as a main material in a resin solution evenly onto the surface of the flare nut 20 It can be formed by using.

The molybdenum sulfide layer 26 formed as described above is excellent in wettability, abrasion resistance, water resistance, corrosion resistance and chemical resistance, and has high load-bearing property and low coefficient of friction, and thus is used as a dry lubricating coating.

As shown in Fig. 3, on the outer surface of the expanded portion 19 of the pipe 18, it is also possible to form a contact protrusion 30 protruding along the periphery.

The contact protrusions (30) are formed in a ring shape along the circumference of the expanded portion (19).

The contact protrusions 30 may be formed in one row or two or more rows.

When the flare nut 20 is fastened to the boss 14, the pressing force between the flared nut 19 and the flare nut 20 is reduced It is possible to obtain the maximum, and the contact surface can be minimized, so that it is possible to minimize the occurrence of the adhesion phenomenon.

Although not shown in the drawing, it is also possible to form a molybdenum sulfide layer on the surface of the expanded portion 19 of the pipe 18 as well.

When the molybdenum sulfide layer is formed on the surface of the expanded portion 19 as described above, the molybdenum sulfide layer 26 formed on the flare nut 20 is contacted with the molten metal to increase the lubrication function, thereby minimizing the occurrence of the sticking phenomenon.

It is also possible to form a molybdenum sulfide layer on the surfaces of the inlet and outlet bosses 14 as well.

Although the preferred embodiments of the oil cooler inlet and outlet coupling structure of the aluminum material according to the present invention have been described above, the present invention is not limited thereto, but may be modified in various ways within the scope of the claims and the specification and the accompanying drawings And is also within the scope of the present invention.

12 - Oil cooler, 14 - boss, 18 - pipe, 19 - Expansion section, 20 - Flare nut
26 - molybdenum sulfide layer, 30 - contact projection

Claims (5)

An inlet and an outlet boss formed in the oil cooler and formed with a screw on an outer circumferential surface thereof,
A pipe having a flared expansion portion formed at an end thereof so as to be in surface contact with an end surface of the inlet and outlet bosses,
And a flare nut installed on the pipe and screwed to a screw formed on the inlet and outlet bosses and having a molybdenum sulfide layer formed on the surface thereof. The method according to claim 1,
And an oil cooler inlet / outlet fastening structure made of an aluminum material is formed on the outer surface of the pipe expansion portion of the pipe to form a contact protrusion protruding along the circumference. The method of claim 2,
Wherein the contact protrusions are formed in one or two rows of aluminum coolant inlet / outlet fastening structures. The method according to claim 1 or 2,
And a molybdenum sulfide layer is formed on a surface of the expanded portion of the pipe. The method according to claim 1 or 2,
And a molybdenum sulfide layer is formed on the surfaces of the inlet and outlet bosses.
KR1020130082387A 2013-07-12 2013-07-12 Inlet and Outlet Connection of Oil Cooler for Aluminium Material KR20150007843A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020130082387A KR20150007843A (en) 2013-07-12 2013-07-12 Inlet and Outlet Connection of Oil Cooler for Aluminium Material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020130082387A KR20150007843A (en) 2013-07-12 2013-07-12 Inlet and Outlet Connection of Oil Cooler for Aluminium Material

Publications (1)

Publication Number Publication Date
KR20150007843A true KR20150007843A (en) 2015-01-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020130082387A KR20150007843A (en) 2013-07-12 2013-07-12 Inlet and Outlet Connection of Oil Cooler for Aluminium Material

Country Status (1)

Country Link
KR (1) KR20150007843A (en)

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