CN218625346U - Be used for gearbox leak protection oil gas stifled, gearbox and vehicle - Google Patents

Be used for gearbox leak protection oil gas stifled, gearbox and vehicle Download PDF

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Publication number
CN218625346U
CN218625346U CN202223144043.6U CN202223144043U CN218625346U CN 218625346 U CN218625346 U CN 218625346U CN 202223144043 U CN202223144043 U CN 202223144043U CN 218625346 U CN218625346 U CN 218625346U
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China
Prior art keywords
oil
sleeve
oil return
gearbox
hollow pipe
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CN202223144043.6U
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Chinese (zh)
Inventor
华正旺
刘冰
郭晓艳
周万勇
郭文
张志刚
汪浩
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Dongfeng Commercial Vehicle Co Ltd
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Dongfeng Commercial Vehicle Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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Abstract

The application relates to an oil and gas leakage preventing plug for a gearbox, the gearbox and a vehicle, and belongs to the technical field of gearbox gas plugs, the oil and gas leakage preventing plug for the gearbox comprises a semi-hollow pipe, a blind hole with one open end is formed in the semi-hollow pipe in the axial direction, and exhaust holes which are communicated with the blind hole and used for exhausting and returning oil are formed in the side wall of the blind hole; one end of the oil return sleeve is hermetically connected to the peripheral side wall of the semi-hollow pipe, and the other end of the oil return sleeve is opened and extends towards the direction opposite to the opening of the blind hole; the dustproof sleeve, its one end cover is on the opening of oil return cover and other end opening and extend to oil return cover week side, be formed with the exhaust clearance between dustproof sleeve and the oil return cover, dustproof sleeve and oil return cover form the chamber of condensing with the exhaust hole intercommunication. The problems that in the related art, the air plug and the hose are directly communicated with the atmosphere, part of lubricating oil can be directly discharged into the atmosphere, and particularly under extremely severe working conditions, the lubricating oil is wasted and the environment is polluted due to the risk of oil injection are solved.

Description

Be used for gearbox leak protection oil gas stifled, gearbox and vehicle
Technical Field
The application relates to the technical field of gearbox air blocking, in particular to an anti-leakage oil and air blocking device for a gearbox, the gearbox and a vehicle.
Background
At present, with the development and continuous progress of society, mechanization begins to be popularized rapidly, the application of a gearbox in various engineering machinery fields, automobile fields and agricultural machinery fields is increased continuously, and the high-efficiency working efficiency of the gearbox is an indispensable part of the future social development. The gearbox produces heat energy and leads to the inside temperature of gearbox to rise because the fast operation of axle tooth in the course of the work, and the inside lubricating oil of gearbox stirs and forms oil-gas mixture with the inside air mixing of gearbox under the effect of high temperature at the axle tooth, leads to the inside atmospheric pressure of gearbox to rise, and the gearbox realizes the gaseous interaction between gearbox and the atmosphere through the gas blocking for the inside atmospheric pressure of balanced gearbox.
In the related technology, the air plug consists of an air plug connector and an exhaust hose, in the working process of the gearbox, the rapid rotation of shaft teeth can cause the temperature inside the gearbox to rise and the air pressure to increase, lubricating oil and air form oil mist to enter the air plug connector under pressure, the lubricating oil is condensed into oil droplets to flow back to the gearbox in the process of passing through the exhaust hose, and the air is exhausted to enter the atmosphere.
However, because the air plug and the hose are directly communicated with the atmosphere, part of lubricating oil can be directly discharged into the atmosphere, and particularly under the extremely severe working condition, the risk of oil injection exists, so that the waste of the lubricating oil is caused, and the environment is polluted.
Disclosure of Invention
The embodiment of the application provides a be used for stifled, gearbox and vehicle of gearbox leak protection oil gas to solve in the correlation technique gas stifled and hose and directly communicate with each other with the atmosphere, during partial lubricating oil can directly discharge the atmosphere, especially under extremely abominable operating mode, there is the risk of oil spout, causes the waste of lubricating oil, and the problem of polluted environment.
The first aspect of the embodiment of this application provides a be used for gearbox leak protection oil air lock, includes:
the semi-hollow pipe is internally provided with a blind hole with one open end in the axial direction, and the side wall of the semi-hollow pipe is provided with an exhaust hole which is communicated with the blind hole and used for exhausting and returning oil;
one end of the oil return sleeve is hermetically connected to the peripheral side wall of the semi-hollow pipe, and the other end of the oil return sleeve is opened and extends towards the direction opposite to the opening of the blind hole;
the dustproof cover, its one end cover on the opening of oil return cover and other end opening and extend to the week side of oil return cover, be formed with the exhaust clearance between dustproof cover and the oil return cover, dustproof cover and oil return cover form the chamber of condensing with the exhaust hole intercommunication, be equipped with the through-hole that is higher than the exhaust hole and communicates with the exhaust clearance on the oil return cover.
In some embodiments, the vent hole is a tapered hole with a flared end facing the blind hole.
In some embodiments, the oil return sleeve comprises an annular plate hermetically connected with the peripheral side wall of the semi-hollow pipe and a horn sleeve integrally formed with the annular plate, and the through hole is positioned on the horn sleeve.
In some embodiments, the dust cover comprises a cover plate which is connected to the opening of the oil return sleeve in a sealing mode and an annular sleeve which is integrally formed with the cover plate and extends to the peripheral side of the oil return sleeve, and the annular sleeve extends to the position below the through hole.
In some embodiments, the half hollow pipe is connected with a limiting ring in a threaded mode, and the oil return sleeve is limited on the half hollow pipe.
In some embodiments, the dust-proof sleeve is sleeved on a half hollow pipe, and a hexagonal head for fixing the dust-proof sleeve on the oil return sleeve is arranged on the half hollow pipe.
In some embodiments, the dust boot and the semi-hollow tube are removably and sealingly connected.
In some embodiments, the half hollow tube is provided with external threads.
A second aspect of an embodiment of the present application provides a transmission, comprising:
any one of the above embodiments is used for preventing oil and gas leakage of the gearbox.
A third aspect of embodiments of the present application provides a vehicle, including:
the gearbox described in the above embodiments.
The beneficial effect that technical scheme that this application provided brought includes:
the embodiment of the application provides an oil and gas leakage preventing plug for a gearbox, the gearbox and a vehicle, an oil return sleeve and an exhaust hole are arranged on a half hollow pipe, a dustproof sleeve is arranged on the oil return sleeve, the dustproof sleeve and the oil return sleeve form a condensation cavity communicated with the exhaust hole, an exhaust gap is formed between the dustproof sleeve and the oil return sleeve, and a through hole which is higher than the exhaust hole and communicated with the exhaust gap is arranged on the oil return sleeve; meanwhile, the air blocking structure is simplified, the hose is removed, and the production and manufacturing cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a structural sectional view of an embodiment of the present application.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a half hollow tube; 2. blind holes; 3. an exhaust hole; 4. returning oil to the sleeve; 5. a dust-proof sleeve; 6. a limiting ring; 7. a hexagonal head; 8. and a through hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
The embodiment of the application provides a be used for stifled, gearbox and vehicle of gearbox leak protection oil gas, it can solve in the correlation technique gas stifled and hose and directly communicate with each other with the atmosphere, and partial lubricating oil can direct discharge to the atmosphere, especially under extremely abominable operating mode, has the risk of oil spout, causes the waste of lubricating oil to the problem of polluted environment.
Referring to fig. 1 to 2, in a first aspect, an embodiment of the present invention provides an oil and gas leakage prevention plug for a transmission, including:
the semi-hollow pipe 1 is internally provided with a blind hole 2 with one open end in the axial direction, and the side wall of the semi-hollow pipe is provided with an exhaust hole 3 which is communicated with the blind hole 2 and used for exhausting and returning air;
one end of the oil return sleeve 4 is hermetically connected to the peripheral side wall of the semi-hollow pipe 1, and the other end of the oil return sleeve is opened and extends towards the opposite direction of the opening of the blind hole 2;
and one end of the dustproof sleeve 5 covers the opening of the oil return sleeve 4, the other end of the dustproof sleeve is opened and extends to the periphery of the oil return sleeve 4, an exhaust gap is formed between the dustproof sleeve 5 and the oil return sleeve 4, the dustproof sleeve 5 and the oil return sleeve 4 form a condensation cavity communicated with the exhaust hole 3, and the oil return sleeve 4 is provided with a through hole 8 which is higher than the exhaust hole 3 and communicated with the exhaust gap.
The half hollow tube 1 that is used for gearbox leak protection oil gas stifled of this application embodiment has one end open-ended blind hole 2 in axial direction, is equipped with the exhaust hole 3 that is used for exhaust and oil return with blind hole 2 intercommunication on half hollow tube 1 lateral wall simultaneously. One end of the oil return sleeve 4 is hermetically connected to the peripheral side wall of the semi-hollow pipe 1, and the other end of the oil return sleeve is opened and extends towards the opposite direction of the opening of the blind hole 2. And the dustproof sleeve 5 is covered on the opening of the oil return sleeve 4 at one end, is opened at the other end, extends to the peripheral side of the oil return sleeve 4, and is used for cooling the oil mist, and meanwhile, the dustproof sleeve 5 prevents the oil mist from directly escaping into the air and prevents foreign matters from entering the oil return sleeve 4. An exhaust gap is formed between the dustproof sleeve 5 and the oil return sleeve 4, a condensation cavity communicated with the exhaust hole 3 is formed between the dustproof sleeve 5 and the oil return sleeve 4, and a through hole 8 which is higher than the exhaust hole 3 and communicated with the exhaust gap is formed in the oil return sleeve 4.
When the oil mist cooling device is used specifically, the opening of the blind hole 2 in the half hollow pipe 1 is communicated with a gearbox, in the working process of the gearbox, the temperature in the gearbox is raised and the air pressure is increased due to the fact that shaft teeth rotate quickly, the oil mist formed by mixing lubricating oil and air in the gearbox enters the half hollow pipe 1, the oil mist is cooled for the first time in the blind hole 2 in the half hollow pipe 1 and then is discharged from the exhaust hole 3 and enters the condensation cavity, the oil mist is cooled for the second time by the inner wall of the oil return sleeve 4 and the flow rate is reduced, condensed oil drops flow back into the gearbox from the exhaust hole 3, air is discharged from the through hole 8 and the exhaust gap, and the balance between the air pressure and the atmosphere in the gearbox is guaranteed, so that the oil leakage risk in the running process of a vehicle is reduced, the frequency of oil change is reduced, and the running cost of the vehicle is reduced; meanwhile, the air blocking structure is simplified, the hose is removed, and the production and manufacturing cost is reduced.
In some alternative embodiments: referring to fig. 1 to 2, an embodiment of the present application provides an oil and gas leakage prevention plug for a transmission, and the exhaust hole 3 for the oil and gas leakage prevention plug for the transmission is a conical hole with a flared end facing the blind hole 2.
The exhaust hole 3 for the oil and gas leakage prevention and blocking of the gearbox is a conical hole with a flaring end facing the blind hole 2. During the specific use, the oil mist that lubricating oil and air mix formation in the gearbox gets into half hollow tube 1 after, and the first time cooling back is discharged from exhaust hole 3 in blind hole 2 on half hollow tube 1, gets into the intracavity portion that condenses, and the oil mist relies on the oil return cover 4 inner wall to cool off and reduce the velocity of flow for the second time, and 3 toper pore walls of exhaust hole can be condensed with higher speed and make the oil droplet that condenses flow into in blind hole 2, flow back in the gearbox, have improved oil return efficiency, can not long-pending oil in oil return cover 4.
In some alternative embodiments: referring to fig. 1 to 2, the oil return sleeve 4 for preventing oil and gas leakage of the transmission case comprises an annular plate and a horn sleeve, wherein the annular plate is connected with the peripheral side wall of the semi-hollow tube 1 in a sealing mode, the horn sleeve is formed integrally with the annular plate, and the through hole 8 is formed in the horn sleeve.
The oil return sleeve 4 for the oil leakage prevention and air blockage of the gearbox comprises an annular plate and a horn sleeve, wherein the annular plate is connected with the circumferential side wall of the half hollow pipe 1 in a sealing mode, the horn sleeve is integrally formed with the annular plate, the through hole 8 is formed in the horn sleeve, and the annular plate and the horn sleeve are arranged on the horn sleeve. During the specific use, in the gearbox working process, the axle tooth fast turn can lead to the inside temperature of gearbox to rise, atmospheric pressure increase, the oil mist that lubricating oil and air mixture formed in the gearbox gets into half hollow tube 1 after, cool off the back from exhaust hole 3 in blind hole 2 on half hollow tube 1 for the first time, get into the intracavity portion that condenses, the oil mist relies on the roof of annular plate and the arc lateral wall of loudspeaker cover to cool off and reduce the velocity of flow for the second time, the oil that condenses flows back to the gearbox in from exhaust hole 3, and the air can be followed through-hole 8 and exhaust clearance and discharged, the internal gas pressure of gearbox has been guaranteed with atmospheric balance.
In some alternative embodiments: referring to fig. 1 to 2, the embodiment of the present application provides a transmission oil and gas leakage prevention plug, and the dust boot 5 for a transmission oil and gas leakage prevention plug comprises a cover plate hermetically connected to an opening of the oil return sleeve 4 and an annular sleeve integrally formed with the cover plate and extending to the peripheral side of the oil return sleeve 4, and the annular sleeve extends to the lower side of the through hole 8.
The dustproof sleeve 5 for preventing oil leakage and air blockage of the gearbox comprises a cover plate and an annular sleeve, wherein the cover plate is connected to an opening of an oil return sleeve 4 in a sealing mode, the annular sleeve is integrally formed with the cover plate and extends to the periphery of the oil return sleeve 4, the annular sleeve extends to the lower portion of a through hole 8, and when the dustproof sleeve is used specifically, in the working process of the gearbox, the temperature inside the gearbox can be increased and the air pressure can be increased due to the fact that shaft teeth rotate rapidly, after oil mist formed by mixing lubricating oil and air in the gearbox enters a half hollow tube 1 and is discharged from an exhaust hole 3 after being cooled for the first time in a blind hole 2 in the half hollow tube 1, the oil mist enters a condensation cavity, the oil mist is cooled for the second time by the inner wall of the oil return sleeve 4 and reduces the flow speed, condensed oil drops flow back into the gearbox from the exhaust hole 3, the air can be discharged from the through hole 8 and an exhaust gap, the cover plate and the oil return sleeve 4 form the condensation cavity, the annular sleeve and the oil return sleeve 4 form the exhaust gap, the through hole 8 and the bent air circulation channel, foreign matter dust is prevented from entering the oil return sleeve 4, and the service life of the oil plug is guaranteed.
In some alternative embodiments: referring to fig. 1 to 2, the embodiment of the present application provides an oil and gas leakage prevention plug for a transmission, wherein a half hollow tube 1 for the oil and gas leakage prevention plug of the transmission is connected with a limit ring 6 through threads, and the limit ring is used for limiting an oil return sleeve 4 on the half hollow tube 1;
the dustproof sleeve 5 is sleeved on the semi-hollow pipe 1, and the hexagonal head 7 for fixing the dustproof sleeve 5 on the oil return sleeve 4 is arranged on the semi-hollow pipe 1.
The semi-hollow tube 1 for preventing oil and gas leakage of the gearbox in the embodiment of the application is in threaded connection with a limiting ring 6 for limiting the oil return sleeve 4 on the semi-hollow tube 1; the dustproof sleeve 5 is sleeved on the half hollow pipe 1, and the hexagonal head 7 for fixing the dustproof sleeve 5 on the oil return sleeve 4 is arranged on the half hollow pipe 1. When the semi-hollow pipe joint is used specifically, the oil return sleeve 4 and the dust cover 5 can be taken down along the direction of the semi-hollow pipe 1 in sequence by disassembling the limiting ring 6, and cleaning and maintenance are convenient.
In some alternative embodiments: referring to fig. 1 to 2, the embodiment of the application provides an oil and gas leakage prevention plug for a gearbox, and the dustproof sleeve 5 for the oil and gas leakage prevention plug for the gearbox is detachably and hermetically connected with the semi-hollow pipe 1.
The dustproof sleeve 5 used for preventing oil leakage and gas blockage of the gearbox and the semi-hollow pipe 1 are detachably connected in a sealing mode. During the specific use, dirt proof boot 5 can threaded connection on half hollow tube 1 to support and fix a position oil return cover 4, oil return cover 4 can threaded connection on half hollow tube 1, or support on spacing ring 6. When the device is used specifically, the dust-proof sleeve 5 is detached, and then the oil return sleeve 4 is detached, so that cleaning and maintenance are convenient. It should be noted that the dust cover 5 of the embodiment of the present application may also be connected to the semi-hollow pipe 1 by means of a fastener.
In some alternative embodiments: referring to fig. 1 to 2, an embodiment of the present application provides an oil and gas leakage prevention plug for a transmission, where an external thread is provided on a half hollow pipe 1 of the oil and gas leakage prevention plug for a transmission.
The semi-hollow pipe 1 for the oil and gas leakage prevention plug of the gearbox is provided with external threads. During the specific use, conveniently with half hollow tube 1 threaded connection to the gearbox on, make blind hole 2 opening on half hollow tube 1 and the inside intercommunication of gearbox.
A second aspect of an embodiment of the present application provides a transmission, comprising:
an oil and gas block preventing device for a gearbox in any one of the above embodiments.
The gearbox of this application embodiment has adopted above-mentioned being used for gearbox leak protection oil gas to block up, has reduced the oil leak risk of gearbox, has improved the utilization ratio of lubricating oil.
A second aspect of an embodiment of the present application provides a vehicle, including:
a gearbox according to any one of the embodiments described above.
The vehicle of this application embodiment has adopted the stifled gearbox of above-mentioned installation leak protection oil gas, has reduced the oil leak risk that exists among the vehicle operation process, has reduced the frequency of changing oil, has reduced vehicle operation cost.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
It is noted that, in this application, relational terms such as "first" and "second," and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
The previous description is only an example of the present application, and is provided to enable any person skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A is used for gearbox leak protection oil gas to block up, its characterized in that includes:
the semi-hollow pipe (1) is internally provided with a blind hole (2) with one open end in the axial direction, and the side wall of the semi-hollow pipe is provided with an exhaust hole (3) which is communicated with the blind hole (2) and is used for exhausting and returning air;
the oil return sleeve (4) is connected to the peripheral side wall of the semi-hollow pipe (1) in a sealing mode at one end, is open at the other end and extends towards the direction opposite to the opening direction of the blind hole (2);
the dustproof sleeve (5), its one end cover is on the opening of oil return cover (4) and other end opening and extend to the week side of oil return cover (4), be formed with the exhaust clearance between dustproof sleeve (5) and oil return cover (4), dustproof sleeve (5) and oil return cover (4) form the chamber that condenses with exhaust hole (3) intercommunication, be equipped with on oil return cover (4) and be higher than exhaust hole (3) and through-hole (8) that communicate with the exhaust clearance.
2. An oil and gas leakage prevention plug for a transmission case according to claim 1, wherein:
the exhaust hole (3) is a conical hole with a flared end facing the blind hole (2).
3. An oil and gas leakage prevention plug for a transmission case according to claim 1, wherein:
the oil return sleeve (4) comprises an annular plate connected with the peripheral side wall of the semi-hollow pipe (1) in a sealing mode and a horn sleeve integrally formed with the annular plate, and the through hole (8) is located in the horn sleeve.
4. An oil and gas leakage preventing plug for a transmission, as claimed in claim 1, wherein:
the dust cover (5) include sealed connection at the apron on oil return cover (4) opening and with apron integrated into one piece and extend to the annular cover of oil return cover (4) week side, the annular cover extends to the below of through-hole (8).
5. An oil and gas leakage prevention plug for a transmission case according to claim 1, wherein:
the half hollow pipe (1) is in threaded connection with a limiting ring (6) which limits the oil return sleeve (4) on the half hollow pipe (1).
6. An oil and gas leakage prevention plug for a transmission according to claim 5, wherein:
the dustproof sleeve (5) is sleeved on the semi-hollow pipe (1), and the hexagonal head (7) which fixes the dustproof sleeve (5) on the oil return sleeve (4) is arranged on the semi-hollow pipe (1).
7. An oil and gas leakage prevention plug for a transmission case according to claim 1, wherein:
the dustproof sleeve (5) is detachably connected with the semi-hollow pipe (1) in a sealing manner.
8. An oil and gas leakage prevention plug for a transmission case according to claim 1, wherein:
the half hollow pipe (1) is provided with external threads.
9. A transmission, comprising:
an oil and gas leakage preventing plug for a gearbox as claimed in any one of claims 1 to 8.
10. A vehicle, characterized by comprising:
the transmission of claim 9.
CN202223144043.6U 2022-11-25 2022-11-25 Be used for gearbox leak protection oil gas stifled, gearbox and vehicle Active CN218625346U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223144043.6U CN218625346U (en) 2022-11-25 2022-11-25 Be used for gearbox leak protection oil gas stifled, gearbox and vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223144043.6U CN218625346U (en) 2022-11-25 2022-11-25 Be used for gearbox leak protection oil gas stifled, gearbox and vehicle

Publications (1)

Publication Number Publication Date
CN218625346U true CN218625346U (en) 2023-03-14

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