CN108119637B - Vent valve - Google Patents
Vent valve Download PDFInfo
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- CN108119637B CN108119637B CN201611085225.7A CN201611085225A CN108119637B CN 108119637 B CN108119637 B CN 108119637B CN 201611085225 A CN201611085225 A CN 201611085225A CN 108119637 B CN108119637 B CN 108119637B
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- cavity
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- core plate
- vent valve
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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
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/027—Gearboxes; Mounting gearing therein characterised by means for venting gearboxes, e.g. air breathers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Self-Closing Valves And Venting Or Aerating Valves (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides a vent valve, which comprises a shell provided with a fluid inlet and a fluid outlet, wherein a cavity communicated between the fluid inlet and the fluid outlet and a core plate arranged in the cavity of the fluid outlet to separate the cavity between the fluid inlet and the fluid outlet are formed in the shell, and a sealed accommodating cavity is formed between the core plate and the fluid inlet due to the separation of the core plate in the cavity. The vent valve also comprises a clapboard group which is arranged in the accommodating cavity and divides the accommodating cavity into a labyrinth-shaped fluid channel, and the tail end channel of the fluid channel can be communicated with the outside through the vent hole on the core plate. The ventilation valve can prolong the cooling time of oil vapor by arranging the fluid channel with the partition plate group to divide the containing cavity into the labyrinth shape, so that the oil vapor can be prevented from channeling upwards and can be convenient for the condensation of the oil vapor, thereby preventing the oil vapor from being combined with external impurities to generate oil sludge, and further improving the ventilation effect.
Description
Technical Field
The invention relates to a ventilation device on a vehicle, in particular to a ventilation valve.
Background
The automobile transfer case and the transmission are provided with the ventilating device for balancing the internal pressure and the external pressure and preventing external muddy water and dust from entering the shell. Most of existing vent valves are one-way valves, which mainly comprise a vent valve body, a vent valve cap, a rubber gasket and a spring, when the operating temperature of a transfer case and a transmission is high, gear oil forms oil vapor to generate high pressure, and when the air pressure is greater than the pressure of the spring, the rubber gasket is jacked up, the oil vapor is leaked out from a gap between the vent valve cap and the vent valve body, and the oil vapor can be mixed with dust to generate oil sludge around the valve body in the exhaust process, so that the ventilation effect can be influenced. In addition, when transfer case, derailleur operating temperature are lower, the valve body inner chamber can produce the negative pressure with the external world, leads to the sealing member easily to receive wearing and tearing, arouses the emergence of oil leak phenomenon, and still can lead to external muddy water to enter into the gearbox casing, causes the wearing and tearing of spare part in it.
Disclosure of Invention
In view of the above, the present invention is directed to a vent valve to improve the venting effect.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
a vent valve comprising a housing formed with a fluid inlet and a fluid outlet, the housing having formed therein a cavity communicating between the fluid inlet and the fluid outlet, further comprising:
a core plate disposed within the cavity at the fluid outlet and forming a partition of the cavity between the fluid inlet and the fluid outlet; the cavity is separated by the core plate, a sealed accommodating cavity is formed between the core plate and the fluid inlet, and the core plate is provided with a vent hole for communicating the fluid outlet and the accommodating cavity;
the partition plate group is arranged in the accommodating cavity to divide the accommodating cavity into labyrinth-shaped fluid channels; the vent hole constitutes communication between a terminal channel of the fluid channel and the fluid outlet.
Further, the separator plate group includes:
the first partition plate group is fixedly connected to the inner wall of the accommodating cavity and comprises a plurality of first partition unit plates which are distributed at intervals along the radial direction of the accommodating cavity;
the second partition plate group is fixedly connected to the core plate and comprises a plurality of second partition unit plates which are distributed along the radial direction of the accommodating cavity at intervals; each of the second partition unit plates is inserted into a pitch of the plurality of first partition unit plates.
Further, the first partition unit plate is composed of a plurality of first arc-shaped baffles surrounding the fluid inlet, and a first gap is formed between every two adjacent first arc-shaped baffles; the second partition unit plate is formed by a plurality of second arc-shaped baffles in an enclosing manner, and a second gap is formed between every two adjacent second arc-shaped baffles; the second partition unit plate and the first partition unit plate are arranged concentrically.
Further, the center line of the first partition unit plate and the center line of the second partition unit plate coincide with the center line of the fluid inlet.
Furthermore, an included angle is formed between a radial line where the first gap is located and a radial line where the second gap is located.
Further, the fluid inlet is a main vent pipe arranged on the shell, the main vent pipe extends into the accommodating cavity from the outside of the shell, and a gap is formed between the main vent pipe and the core plate; and the core plate is fixedly connected with a separation pipe which extends towards the accommodating cavity and is sleeved outside the main vent pipe, and the free end of the separation pipe is arranged at a distance from the radial inner wall of the accommodating cavity.
Furthermore, an oil return groove communicated with the fluid inlet is formed in the radial inner wall of the accommodating cavity.
Furthermore, an oil absorption cotton and a ventilation film which are used for the fluid to pass through in sequence are arranged in the cavity between the core plate and the fluid outlet.
Further, the oil absorption cotton comprises a first oil absorption cotton and a second oil absorption cotton which are arranged in an axial direction of the cavity in an overlapping mode.
Furthermore, an auxiliary vent pipe is connected to the shell where the oil absorption cotton is located.
Compared with the prior art, the vent valve has the following advantages:
according to the vent valve provided by the embodiment of the invention, the fluid inlet and the fluid outlet are separated by the core plate, and the partition plate group is arranged in the accommodating cavity to separate the accommodating cavity into the labyrinth-shaped fluid channel, so that the cooling time of oil vapor in the accommodating cavity can be prolonged, the oil vapor can be prevented from channeling upwards and is convenient for the condensation of the oil vapor, the oil vapor can be prevented from being combined with external impurities to generate oil sludge, and the ventilation effect is improved; meanwhile, the core plate is provided with the vent hole communicated with the fluid outlet, so that the phenomenon of negative pressure in the containing cavity can be avoided, the abrasion of parts is reduced, and the core plate is simple and reliable in structure and has good practicability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is an exploded view of a vent valve according to an embodiment of the present invention;
FIG. 2 is a schematic view of an assembled structure of the vent valve according to the embodiment of the present invention;
FIG. 3 is a top view of a vent valve body according to an embodiment of the invention;
FIG. 4 is a cross-sectional view taken along plane A-A of FIG. 3;
FIG. 5 is a bottom view of a core plate according to an embodiment of the present invention;
FIG. 6 is a schematic view of the oil vapor flow according to an embodiment of the present invention;
description of reference numerals:
1-shell, 101-vent valve body, 1011-inlet end, 1012-cavity, 1013-open end, 1014-accommodating sub-cavity, 102-vent valve cover, 2-fluid inlet, 3-core plate, 301-separating tube, 4-vent hole, 5-partition plate group, 501-first partition plate group, 5011-first partition unit plate, 5011 a-first arc baffle, 502-second partition plate group, 5021-second partition unit plate, 5021 a-second arc baffle, 6-first gap, 7-second gap, 8-oil return groove, 9-oil suction cotton, 901-first oil suction cotton, 902-second oil suction cotton, 10-vent membrane and 11-auxiliary vent pipe.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
The embodiment relates to a vent valve, which comprises a shell which is provided with a fluid inlet and a fluid outlet, wherein a cavity communicated between the fluid inlet and the fluid outlet and a core plate which is arranged in the cavity at the fluid outlet and used for separating the cavity between the fluid inlet and the fluid outlet are formed in the shell, and a sealed accommodating cavity is formed between the core plate and the fluid inlet due to the separation of the core plate in the cavity. The vent valve also comprises a clapboard group which is arranged in the containing cavity and divides the containing cavity into a labyrinth-shaped fluid channel, and the tail end channel of the fluid channel can be communicated with the fluid outlet through the vent hole on the core plate. The ventilation valve can prolong the cooling time of oil vapor by arranging the fluid channel with the partition plate group to divide the containing cavity into the labyrinth shape, so that the oil vapor can be prevented from channeling upwards and can be convenient for the condensation of the oil vapor, thereby preventing the oil vapor from being combined with external impurities to generate oil sludge, and further improving the ventilation effect.
Based on the above design concept, an exemplary structure of the vent valve described in this embodiment can be as shown in fig. 1 and fig. 2, the housing 1 described in this embodiment can be a cylinder, a right prism, and a combination of the cylinder or the right prism, and is preferably a cylinder, which includes a vent valve body 101 with a hollow interior and an open end, and a vent valve cover 102 detachably fastened to the open end of the vent valve body 101, a gap (not shown) is formed between the vent valve cover 102 and the vent valve body 101, the gap is the fluid outlet, and the fluid inlet 2 is formed on the other end (for convenience of description, the end is referred to as an air inlet 1011 in this embodiment) of the vent valve body 101 opposite to the fluid outlet.
In this embodiment, the cavity 1012 is a space formed inside the vent valve body 101 after the vent valve body 101 and the vent valve cover 102 are closed. The cavity 1012 and the cross-section of the core 3 are both arranged with the shell 1, preferably circular. As shown in fig. 2, in order to increase the cooling effect of the oil vapor, the core plate 3 is disposed away from the air inlet end 1011, and is preferably disposed at the opening end 1013 of the vent valve body 101, and the receiving cavity is the inner space formed by the core plate 3 and the vent valve body 101. In addition, the vent holes 4 are formed at the edge of the core plate 3 so as to communicate with the outermost receiving sub-chamber 1014 described below, thereby ensuring that the oil vapor is discharged after passing through each receiving sub-chamber described below.
Since the cavity 1012 is provided in a circular shape, the vent holes 4 are also provided in plural numbers around the core plate 3 in this embodiment in order to secure the venting effect. As shown in fig. 3 and 4, the partition plate set 5 of the present embodiment includes a first partition plate set 501 fixedly attached to the inner wall of the air inlet end 1011, the first partition plate set 501 includes a plurality of first partition unit plates 5011 distributed at intervals along the radial direction of the receiving cavity, each of the first partition unit plates 5011 is disposed annularly and extends towards the opening end 1013 of the breather valve body 101 by taking the inlet end 1011 as a starting point to form a sealing connection with the core plate 3, so as to partition the receiving cavity into a plurality of receiving sub-cavities 1014.
In the above-described structure, in order to allow the oil vapor to sequentially pass through the respective housing subchambers 1014, in the present embodiment, the first gap 6 is formed in each of the first partition unit plates 5011, and as shown in fig. 3 and 4, the first partition unit plate 5011 is composed of a plurality of first arc-shaped baffles 5011a surrounding the fluid inlet 2, and the first gap 6 is formed between adjacent two first arc-shaped baffles 5011 a. Meanwhile, in order to ensure the flowing effect of the oil vapor in each accommodating sub-cavity 1014, the radial lines of the first gaps 6 on the adjacent first partition unit plates 5011 are arranged at an included angle, namely the radial lines of the first gaps 6 on the adjacent first partition unit plates 5011 are not on the same diameter line of the accommodating cavity. In order to ensure the cooling effect of the oil vapor and avoid increasing the flow resistance of the oil vapor, the number of the first arc-shaped baffles 5011a in this embodiment is 2 to 4, and preferably 3, in an annular arrangement.
For convenience of processing, the adjacent first partition unit plates 5011 on the vent valve body 101 in this embodiment cannot be too close, and the first partition unit plates 5011 are provided in two in this embodiment depending on the size of the vent valve body 101. In order not to affect the cooling effect of the oil vapor, in the present embodiment, the core plate 3 is slidably inserted into the breather valve body 101, and the core plate 3 is also provided with a second partition plate group 502 having the same structure as the first partition plate group 501. As shown in fig. 5, in the present embodiment, the second partition plate group 502 includes a plurality of second partition unit plates 5021 distributed at intervals along the radial direction of the receiving cavity, and each second partition unit plate 5021 is inserted into a space between the plurality of first partition unit plates 5011. Like the first partition unit plate 5011, in this embodiment, the second partition unit plate 5021 is surrounded by a plurality of second arc-shaped baffles 5021a, and a second gap 7 is formed between two adjacent second arc-shaped baffles 5021a, and the width of the second gap 7 may be the same as or different from the width of the first gap 7. In addition, in the present embodiment, the number of the second partition unit plates 5021 may be multiple or one, and the specific number may be determined according to the sectional size of the core plate 3 and the cooling effect of the oil vapor.
Since the second partition unit plate 5021 is inserted into the spaces between the first partition unit plates 5011, the radial lines of the first gaps 6 of the adjacent first partition unit plates 5011 do not need to form an included angle, and the radial lines of the adjacent first gaps 6 are arranged on the same diameter line of the receiving cavity (i.e., the state shown in fig. 3), while the radial lines of the adjacent first gaps 6 and the second gaps 7 need to form an included angle (the state shown in fig. 6). In this embodiment, the first partition plate group 501 and the second partition plate group 502 are respectively provided on the breather valve body 101 and the core plate 3, so that on one hand, the cooling time of the oil vapor can be further prolonged, and on the other hand, the problems of processing difficulty and the like caused by the first partition plate group 501 and the second partition plate group 502 being provided on the breather valve body 101 or the core plate 3 at the same time can be avoided. In addition, in the present embodiment, the first partition plate group 501 and the second partition plate group 502 may be disposed on the air inlet end 1011 or the core plate 3.
In the above-described structure of the present embodiment, in order to ensure uniform cooling of the oil vapor, the second partition unit plate 5021 and the first partition unit plate 5011 are disposed concentrically as shown in fig. 6. Meanwhile, the cross section of the fluid inlet 2 is also arranged in a circular shape, and the center line of the first partition unit plate 5011 and the center line of the second partition unit plate 5021 are arranged to coincide with the center line of the fluid inlet 2. As shown in fig. 6 and fig. 1, in the present embodiment, the fluid inlet 2 is disposed on the vent valve body 101 and penetrates through the main vent pipe at the air inlet end 1011, and in order to ensure that the oil vapor can smoothly enter the accommodating cavity, the main vent pipe in the present embodiment extends a certain distance from the air inlet end 1011 to the outside, and in order to cooperate with the first partition plate group 501 and the second partition plate group 502 to further increase the cooling effect of the oil vapor, the main vent pipe in the present embodiment also extends into the accommodating cavity along the center line of the vent valve body 101, and forms a distance for the oil vapor to flow between the main vent pipe and the core plate 3, so as to ensure that the oil vapor can flow into the accommodating sub-cavity 1014 after being guided by the main vent pipe.
As with the second partition plate group 502 and the first partition plate group 501 provided on the core plate 3, as shown in fig. 6 and fig. 2, in this embodiment, the partition pipe 301 extending into the accommodating cavity and sleeved outside the main breather pipe is fixedly connected to the core plate 3, and the partition pipe 301 and the air inlet end 1011 of the breather valve body 101 form a gap for oil vapor to flow through. The oil vapor is guided through the main vent pipe and then reversely guided through the dividing pipe 301 to enter the accommodating sub-chamber 1014. Through the arrangement of the separation pipe 301 and the main vent pipe, on one hand, the path of oil vapor can be increased, so that the cooling effect is increased, on the other hand, the separation pipe 301 plays a role in guiding the oil vapor reversely, so that the oil vapor can be further prevented from channeling upwards, and the liquefaction of the oil vapor is facilitated.
In this embodiment, the casing 1, the core plate 3 and the partition plate group 5 are made of a material with good heat dissipation, such as a metal material, so that the oil vapor can be rapidly cooled and liquefied. In order to facilitate the timely guiding out of the liquefied oil vapor, an oil return groove 8 communicated with the fluid inlet 2 is formed in the radial inner wall of the accommodating cavity in the embodiment. As shown in fig. 3, in the present embodiment, the oil return groove 8 is disposed on the inner wall of the air inlet 1011, and extends along the radial direction of the accommodating cavity to communicate with the fluid inlet 2, and can flow back to the transmission, the transfer case, and other mechanisms again through the fluid inlet, so as to achieve recycling of oil vapor. In this embodiment, the oil return grooves 8 are a plurality of ring receiving cavities, the number of the oil return grooves 8 can be set according to the number of the first gaps 6 and the second gaps 7, and in order to increase the oil return effect, each oil return groove 8 is respectively disposed between adjacent first gaps 6 (or adjacent second gaps 7).
In addition, as shown in fig. 1 and 2, in order to prevent the outside muddy water from entering the accommodating chamber and contaminating the oil vapor, a cavity between the core plate 3 and the fluid outlet is provided with an oil absorbent cotton 9 and a ventilation film 10 for the fluid to pass through. The ventilation film 10 can be a waterproof ventilation film made of polytetrafluoroethylene, and the oil absorption cotton 9 can prevent the oil vapor in the containing cavity from polluting the ventilation film 10. In order to further prevent the influence of the oil vapor on the ventilation film, as shown in fig. 1 and fig. 2, the oil absorbing cotton 9 in this embodiment includes a first oil absorbing cotton 901 and a second oil absorbing cotton 902 which are stacked in the axial direction of the cavity 1012. In addition, in order to increase the practicability, the shell where the oil absorption cotton is located is also connected with an auxiliary vent pipe 11. The secondary vent pipe 11 may be used in conjunction with a primary vent pipe, for example, the secondary vent pipe 11 may be used to communicate with a less oil vapor containing mechanism, such as a transmission in a vehicle, and the primary vent pipe may be used to communicate with a more oil vapor containing mechanism, such as a transfer case in a vehicle.
When the breather valve is used, the labyrinth-type fluid channel (the fluid channel is formed by a cavity formed by enclosing the first partition unit plate 5011 and the second partition unit plate 5021 and the first gap 6 and the second gap 7) is arranged, so that oil vapor can be sufficiently cooled and liquefied, the oil vapor can be prevented from being combined with external impurities after the oil vapor is blown out to generate oil sludge to influence the ventilation effect, and the main breather pipe is arranged to be matched with the partition pipe 301 to be favorable for cooling the oil vapor. Meanwhile, the core plate 3 is provided with the vent hole 301 communicated with the fluid outlet, so that the phenomenon of negative pressure in the accommodating cavity can be avoided, the abrasion of parts is reduced, and the core plate is simple and reliable in structure and has good practicability.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. A vent valve comprising a housing (1) formed with a fluid inlet (2) and a fluid outlet, the housing (1) having formed therein a cavity (1012) communicating between the fluid inlet (2) and the fluid outlet, characterized by further comprising:
a core plate (3) arranged in the cavity (1012) at the fluid outlet and constituting a separation of the cavity between the fluid inlet (2) and the fluid outlet; the cavity (1012) forms an accommodating cavity between the core plate (3) and the fluid inlet (2) due to the separation of the core plate, and a vent hole (4) for communicating the fluid outlet and the accommodating cavity is arranged on the core plate (3);
the partition plate group (5) is arranged in the accommodating cavity to divide the accommodating cavity into labyrinth-shaped fluid channels; the vent hole (4) constitutes a communication between a terminal channel of the fluid channel and the fluid outlet;
the separator plate group (5) includes:
the first partition plate group (501) is fixedly connected to the inner wall of the accommodating cavity, and the first partition plate group (501) comprises a plurality of first partition unit plates (5011) which are distributed at intervals along the radial direction of the accommodating cavity;
the second partition plate group (502) is fixedly connected to the core plate (3), and the second partition plate group (502) comprises a plurality of second partition unit plates (5021) which are distributed at intervals along the radial direction of the accommodating cavity; each second partition unit plate (5021) is inserted in the space between a plurality of first partition unit plates (5011);
and an oil return groove (8) communicated with the fluid inlet (2) is formed in the radial inner wall of the accommodating cavity.
2. The vent valve of claim 1, wherein: the first partition unit plate (5011) is composed of a plurality of first arc-shaped baffles (5011a) surrounding the fluid inlet (2), and a first gap (6) is formed between two adjacent first arc-shaped baffles (5011 a); the second partition unit plate (5021) is formed by a plurality of second arc-shaped baffles (5021a) in a surrounding mode, and a second gap (7) is formed between every two adjacent second arc-shaped baffles (5021 a); the second partition unit plate (5021) and the first partition unit plate (5011) are arranged concentrically.
3. The vent valve of claim 2, wherein: the center line of the first partition unit plate (5011) and the center line of the second partition unit plate (5021) coincide with the center line of the fluid inlet (2).
4. The vent valve of claim 3, wherein: an included angle is formed between a radial line where the first gap (6) is located and a radial line where the second gap (7) is located.
5. The vent valve of claim 1, wherein: the fluid inlet (2) is a main vent pipe arranged on the shell (1), the main vent pipe extends from the outside of the shell (1) to the accommodating cavity, and a gap is formed between the main vent pipe and the core plate (3); and the core plate (3) is fixedly connected with a separation pipe (301) which extends into the containing cavity and is sleeved outside the main vent pipe, and the free end of the separation pipe (301) is arranged at a distance from the radial inner wall of the containing cavity.
6. The vent valve as recited in any of claims 1 to 5, wherein: an oil absorption cotton (9) and a ventilation film (10) which are used for the fluid to pass through in sequence are arranged in the cavity (1012) between the core plate (3) and the fluid outlet.
7. The vent valve as recited in claim 6, wherein: the oil absorption cotton (9) comprises a first oil absorption cotton (901) and a second oil absorption cotton (902) which are overlapped along the axial direction of the cavity.
8. The vent valve as recited in claim 6, wherein: an auxiliary vent pipe (11) is connected to the shell (1) where the oil absorption cotton (9) is located.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085225.7A CN108119637B (en) | 2016-11-30 | 2016-11-30 | Vent valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611085225.7A CN108119637B (en) | 2016-11-30 | 2016-11-30 | Vent valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108119637A CN108119637A (en) | 2018-06-05 |
| CN108119637B true CN108119637B (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611085225.7A Active CN108119637B (en) | 2016-11-30 | 2016-11-30 | Vent valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN108119637B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111053640A (en) * | 2018-10-17 | 2020-04-24 | 苏州欧圣电气股份有限公司 | Water isolation device, nursing machine main unit and nursing machine |
| DE102020110775A1 (en) * | 2020-04-21 | 2021-10-21 | Bayerische Motoren Werke Aktiengesellschaft | Ventilation device |
| CN111577870B (en) * | 2020-05-27 | 2021-08-27 | 张辉 | Waterproof joint of speed changer breather pipe |
| US11821532B1 (en) * | 2022-08-23 | 2023-11-21 | Ford Global Technologies, Llc | Vehicle vent system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201217A1 (en) * | 1982-01-16 | 1983-07-28 | Bayerische Motoren Werke AG, 8000 München | Valve for the ventilation of a transmission housing, in particular a universal joint housing on a motorbike |
| US5558244A (en) * | 1994-02-24 | 1996-09-24 | Unisia Jecs Corporation | Oil reservoir having a cap with cylindrical baffles defining labyrinth passage |
| CN203374766U (en) * | 2013-07-01 | 2014-01-01 | 河南省金特振动机械有限公司 | High-speed gear vent hood |
| CN203627743U (en) * | 2013-11-28 | 2014-06-04 | 长城汽车股份有限公司 | Ventilation plug for gearbox |
| CN204041161U (en) * | 2014-08-26 | 2014-12-24 | 江西五十铃发动机有限公司 | A kind of mazy type crank case vent valve |
| CN105422215A (en) * | 2015-11-13 | 2016-03-23 | 浙江三好汽车部件有限公司 | Oil-gas separator assembly and oil-gas separation method thereof |
-
2016
- 2016-11-30 CN CN201611085225.7A patent/CN108119637B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3201217A1 (en) * | 1982-01-16 | 1983-07-28 | Bayerische Motoren Werke AG, 8000 München | Valve for the ventilation of a transmission housing, in particular a universal joint housing on a motorbike |
| US5558244A (en) * | 1994-02-24 | 1996-09-24 | Unisia Jecs Corporation | Oil reservoir having a cap with cylindrical baffles defining labyrinth passage |
| CN203374766U (en) * | 2013-07-01 | 2014-01-01 | 河南省金特振动机械有限公司 | High-speed gear vent hood |
| CN203627743U (en) * | 2013-11-28 | 2014-06-04 | 长城汽车股份有限公司 | Ventilation plug for gearbox |
| CN204041161U (en) * | 2014-08-26 | 2014-12-24 | 江西五十铃发动机有限公司 | A kind of mazy type crank case vent valve |
| CN105422215A (en) * | 2015-11-13 | 2016-03-23 | 浙江三好汽车部件有限公司 | Oil-gas separator assembly and oil-gas separation method thereof |
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| CN108119637A (en) | 2018-06-05 |
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