KR20170047519A - Auto tensioner of vehicle - Google Patents

Auto tensioner of vehicle Download PDF

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Publication number
KR20170047519A
KR20170047519A KR1020150147733A KR20150147733A KR20170047519A KR 20170047519 A KR20170047519 A KR 20170047519A KR 1020150147733 A KR1020150147733 A KR 1020150147733A KR 20150147733 A KR20150147733 A KR 20150147733A KR 20170047519 A KR20170047519 A KR 20170047519A
Authority
KR
South Korea
Prior art keywords
oil
oil inlet
filter
discharge port
auto tensioner
Prior art date
Application number
KR1020150147733A
Other languages
Korean (ko)
Inventor
최건호
Original Assignee
현대위아 주식회사
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 현대위아 주식회사 filed Critical 현대위아 주식회사
Priority to KR1020150147733A priority Critical patent/KR20170047519A/en
Publication of KR20170047519A publication Critical patent/KR20170047519A/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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0829—Means for varying tension of belts, ropes, or chains with vibration damping means
    • F16H7/0836—Means for varying tension of belts, ropes, or chains with vibration damping means of the fluid and restriction type, e.g. dashpot
    • 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
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • 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
    • F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
    • F16H57/0404—Lubricant filters
    • 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
    • F16H7/00—Gearings for conveying rotary motion by endless flexible members
    • F16H7/08—Means for varying tension of belts, ropes, or chains
    • F16H7/0848—Means for varying tension of belts, ropes, or chains with means for impeding reverse motion

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

Disclosed is an automatic tensioner of a vehicle, comprising: a body fixated in a cylinder block near a timing belt or a chain, having an oil inlet, and having an internal piston moved by oil introduced through the oil inlet to push the timing belt or the chain; and a filter unit provided to the oil inlet of the body and blocking foreign substances contained in the oil introduced into the body through the oil inlet.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an auto tensioner

The present invention relates to an auto tensioner for a vehicle, which prevents foreign matter contained in oil from flowing into the auto tensioner, thereby preventing a mechanical error from occurring.

The vehicle is provided with a hydraulic automatic tensioner for maintaining the tension of the timing belt or the timing chain of the engine. This hydraulic self-tensioner automatically adjusts the tension on the engine belt drive system to reduce noise caused by insufficient tension on the timing belt or timing chain and to maintain tension. In addition, the auto tensioner satisfies the life extension of the belt drive system and the reliability of the engine.

The automatic tensioner is operated by supplying oil in the oil passage of the engine such as a cylinder block and a cylinder head. If foreign substances are contained in the oil, the automatic tensioner is operated due to foreign substances, A sufficient tension is not transmitted to the timing belt or the timing chain due to insufficient supply.

In this way, when the proper level of tension is not maintained in the timing belt or the timing chain, there arises a problem that operation noise is generated.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

KR 10-2002-0004174 A (2002.01.16)

It is an object of the present invention to provide an auto tensioner for a vehicle that prevents an operation abnormality of an auto tensioner from being generated due to foreign substances in oil supplied into an auto tensioner.

In order to achieve the above object, an auto tensioner of a vehicle according to the present invention is fixed in a cylinder block adjacent to a timing belt or a chain and is formed with an oil inlet, and is moved by oil introduced through an oil inlet, Or a body with a piston for pushing the chain; And a filtration unit provided at an oil inlet of the body and blocking the foreign substances in the oil flowing into the body through the oil inlet.

The body is provided with a check valve which is provided on the oil inlet side and selectively opened and closed by the inflow oil, and the oil pressure is provided to the piston side when the check valve is opened.

The body is provided with an oil discharge port and a relief valve provided on the oil discharge port side to open the oil discharge port when the inflow oil exceeds a predetermined pressure, thereby allowing oil to flow out into the body through the oil discharge port.

And the filtration portion is formed to cover the entire area of the oil inlet.

The filtration unit is formed of a magnetic material to block metal foreign substances in the oil flowing into the body.

The body is formed with an assembly slot on the oil inlet side, and the filter is formed to be fitted in the assembly slot and has a filter corresponding to the same area as the oil inlet.

The filter is formed by a fitting portion fitted to the assembly slot and a filter, and a bent portion bent at an end of the fitting portion and contacting the body.

According to the auto tensioner of the vehicle having the structure as described above, since the foreign components contained in the oil supplied to the inside of the auto tensioner are blocked, and the internal components of the auto tensioner are caused to malfunction due to the foreign matter, Thereby preventing sufficient tension from being supplied to the timing chain.

1 to 2 show an auto tensioner applied to an engine.
3 is a view showing an auto tensioner of a vehicle according to an embodiment of the present invention.
Fig. 4 is a view for explaining the auto tensioner shown in Fig. 3; Fig.

Hereinafter, an auto tensioner of a vehicle according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1 and 2 are views showing an auto tensioner applied to an engine, FIG. 3 is a view showing an auto tensioner of a vehicle according to an embodiment of the present invention, FIG. 4 is a view for explaining an auto tensioner shown in FIG. 3 to be.

1 to 3, the auto tensioner 100 of the vehicle according to the present invention is fixed adjacent to the timing belt or chain 12 in the cylinder block 10, and an oil inlet 220 is formed , A body (200) having a piston (260) which is moved by the oil introduced through the oil inlet (220) and pushes the timing belt or chain (12); And a filtering unit 300 provided at the oil inlet 220 of the body 200 and blocking foreign substances in the oil flowing into the body 200 through the oil inlet 220.

The check valve 230 is provided inside the body 200 and is selectively opened and closed by oil introduced into the oil inlet 220. When the check valve 230 is opened, / RTI > And a tensioner arm 14 is provided between the piston 260 and the timing belt or chain 12 to provide tension through the tensioner arm 14. The tensioner arm 14 is configured to contact the timing belt or chain 12 in the case of the piston 260, So that it can be smoothly performed.

The check valve 230 is configured to open and close the oil inlet 220 as the check ball 234 is embedded in the check valve seat 232 and the check ball 234 flows by hydraulic pressure. The check valve seat 232 is connected to the piston 260 through the piston spring 236 so that the piston 260 connected to the check valve seat 232 when the check ball 234 is moved by the oil is pushed together .

The body 200 is provided with an oil outlet 240. The oil outlet 240 is provided on the side of the oil outlet 240 to open the oil outlet 240 when the oil flows into the body 200 through the oil outlet 240, A relief valve 250 may be provided to allow the oil to flow out.

The relief valve 250 is provided with a relief space 252 provided in the body 200 so as to include the oil discharge port 240 and is connected to the oil discharge port 240 through the relief ball 254 and the relief spring 256, Respectively. As a result, the relief valve 250 moves the relief ball 254 when the oil pressure exceeds a predetermined pressure in the initial design, so that the oil in the body 200 is discharged to the outside through the oil outlet 240 So that the oil pressure inside the body 200 is maintained at an appropriate pressure.

The configuration of the check valve 230 and the relief valve 250 may be variously changed when applied to an oil tensioner, which is well known in various prior art documents, and a detailed description thereof will be omitted.

As described above, the oil flowing into the oil inlet 220 of the body 200 operates components such as the check valve 230 and the relief valve 250. When foreign matter is contained in the oil, May cause an operation error of the check valve 230 and the relief valve 250. That is, when the foreign matter is introduced into the check valve 230 through the oil and the check valve 230 is not closed, the oil in the body 200 of the auto tensioner 100 is discharged when the engine is not used, May be lowered. In addition, when the foreign matter is adsorbed to the relief valve 250, the relief valve 250 is not normally closed, so that the supplied oil is discharged through the opened relief valve 250 to move the piston 260 to form an appropriate hydraulic pressure A problem that can not be solved occurs.

In order to solve the above-described problem, in the present invention, a filtering unit (not shown) for blocking foreign substances in the oil introduced into the body 200 through the oil inlet 220 is provided in the oil inlet 220 of the body 200 300 are provided.

The filtration unit 300 may be formed to cover the entire area of the oil inlet 220 and may include a mesh type in which a dense hole is formed so that foreign matter in the oil flows through the oil inlet 220 into the body 200, It is possible to block the inflow into the inside.

More preferably, the filtration unit 300 is made of a magnetic material and can block metal foreign substances in the oil flowing into the body 200. That is, the path through which the oil flows is circulated through constituent parts made of a metal material. The oil is contained in the oil, and the filtration part 300 is made of a magnetic material so that the metal foreign matter in the oil flows to the magnetic force of the filtration part 300 So that foreign substances can be prevented from entering the inside of the body 200. [0053]

3 to 4, an assembly slot 223 is formed in the body 200 toward the oil inlet 220, and the filtration part 300 is fitted into the assembly slot 223, And a filter 320 corresponding to the same area as the oil inlet 220 may be provided.

The filter unit 300 includes a fitting part 340 fitted to the assembly slot 223 and provided with a filter 320 and a bent part 330 bent at an end of the fitting part 340 and contacting the body 200. [ (Not shown). When the fitting portion 340 of the filtration portion 300 is inserted into the assembly slot 223 and the bending portion 360 is lifted when the detachable portion 300 is lifted to replace the filtration portion 300, 340 are easily detached from the assembly slot 223, so that replacement is easy.

In this way, the body 200 is formed with an assembly slot 223 on the side of the oil flow path at the inlet inlet side and the filtration part 300 is fitted to the assembly slot 223, The osmotic filtration unit 300 can be easily replaced.

Here, the filter 300 is provided with a filter 320 through the same area as the oil inlet 220 so that the filtration unit 300 is fitted to the body 200, It is possible to prevent the occurrence of mechanical errors due to the penetration of foreign matter in the oil.

When the life of the filter 320 of the filtration unit 300 is shortened, only the simple process of detaching the existing filtration unit 300 from the body 200 and then fitting the new filtration unit 300 into the assembly slot 223 The filtration unit 300 can be replaced.

According to the auto tensioner 100 of the vehicle having the above-described structure, foreign matter contained in the oil supplied to the interior of the auto tensioner 100 is blocked, and the internal components of the auto tensioner 100 are separated Thereby preventing a sufficient tension from being supplied to the timing belt or the timing chain 12 as an operation error occurs.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: Auto tensioner 200: Body
220: Oil inlet 223: Assembly slot
230: Check valve 240: Oil outlet
250: relief valve 300: filtration part
320: filter 340:
360: Bending section
10: cylinder block 12: timing belt or chain

Claims (7)

A body secured to the cylinder block adjacent to the timing belt or chain and having an oil inlet formed therein and having a piston which is moved by the oil introduced through the oil inlet to push the timing belt or the chain; And
And a filtration unit provided at the oil inlet of the body and blocking the foreign matter in the oil flowing into the body through the oil inlet. The method according to claim 1,
Wherein the body is provided with a check valve provided on the oil inlet side and selectively opened and closed by the inflow oil, and the oil pressure is provided to the piston side when the check valve is opened. The method according to claim 1,
Wherein the body is provided with an oil discharge port and a relief valve provided on the oil discharge port side to open the oil discharge port when the inflowing oil exceeds a predetermined pressure so as to discharge the oil into the body through the oil discharge port. Auto tensioner. The method according to claim 1,
And the filter portion is formed to cover the entire area of the oil inlet. The method according to claim 1,
Wherein the filtering portion is made of a magnetic material to block foreign matter in the oil flowing into the inside of the body. The method according to claim 1,
Wherein the body has an assembly slot formed through the oil inlet side,
Wherein the filter is formed to be fitted into the assembly slot and has a filter corresponding to the same area as the oil inlet. The method of claim 6,
Wherein the filter portion is formed by a fitting portion fitted to an assembly slot and a filter, and a bent portion bent at an end of the fitting portion to contact the body.
KR1020150147733A 2015-10-23 2015-10-23 Auto tensioner of vehicle KR20170047519A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150147733A KR20170047519A (en) 2015-10-23 2015-10-23 Auto tensioner of vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020150147733A KR20170047519A (en) 2015-10-23 2015-10-23 Auto tensioner of vehicle

Publications (1)

Publication Number Publication Date
KR20170047519A true KR20170047519A (en) 2017-05-08

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ID=60164419

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020150147733A KR20170047519A (en) 2015-10-23 2015-10-23 Auto tensioner of vehicle

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KR (1) KR20170047519A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114962571A (en) * 2022-07-29 2022-08-30 江苏德尔森汽车有限公司 Functional accessory integration system of automobile and transmission method based on functional accessory integration system
KR102535261B1 (en) 2022-05-06 2023-05-26 석준호 Filter manufacturing device for removing foreign substances from hydraulic oil

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102535261B1 (en) 2022-05-06 2023-05-26 석준호 Filter manufacturing device for removing foreign substances from hydraulic oil
CN114962571A (en) * 2022-07-29 2022-08-30 江苏德尔森汽车有限公司 Functional accessory integration system of automobile and transmission method based on functional accessory integration system
CN114962571B (en) * 2022-07-29 2022-10-21 江苏德尔森汽车有限公司 Functional accessory integration system of automobile and transmission method based on functional accessory integration system

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