CN208416691U - A kind of vehicle engine booster oil return pipe degasification structure - Google Patents
A kind of vehicle engine booster oil return pipe degasification structure Download PDFInfo
- Publication number
- CN208416691U CN208416691U CN201820983008.8U CN201820983008U CN208416691U CN 208416691 U CN208416691 U CN 208416691U CN 201820983008 U CN201820983008 U CN 201820983008U CN 208416691 U CN208416691 U CN 208416691U
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- China
- Prior art keywords
- oil
- deaerating chamber
- reserve tank
- fuel reserve
- return pipe
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- Legal status (The legal status 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 status listed.)
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a kind of vehicle engine booster oil return pipe degasification structures.By the setting for being equipped with the first deaerating chamber of baffle, make gas mixture bending flowing up and down in the first deaerating chamber, part combustion mixture and burning waste gas can be tentatively set to be detached from, by the setting for being equipped with the second dirt pocket of the first helical mount and the second helical mount, further Oil-gas Separation can be carried out to the combustion mixture and burning waste gas isolated, make a small amount of lubricating oil wherein mixed that can flow back to fuel reserve tank along the first helical mount and the second helical mount, it avoids wasting, pass through being equipped with for the oil liquid outlet of tetrapyamid shape protrusion and quadrangle, make fuel reserve tank in arrangement installation at different angles, lubricating oil can be effectively discharged via oil liquid outlet.The utility model can sufficiently carry out Oil-gas Separation to the gas mixture from engine supercharger, avoid the quality for influencing lubricating oil, and the lubricating oil isolated smooth can pass back into the oil sump of engine.
Description
Technical field
The utility model relates to engine supercharger technical field, specific field is a kind of vehicle engine booster oil return
Pipe degasification structure.
Background technique
When engine uses greater obliquity mounting arrangements, the liquid of the lubricating oil in the mounting height and oil sump of booster
The difference in height in face may reduce, and the bypass gases for carrying out automatic pressure intensifier, which may be gathered in oil return pipe, forms vapour lock, to make
The oil return for obtaining booster is not smooth, needs to install vehicle engine booster oil return pipe degasification structure to carry out degasification.It is existing
Vehicle engine booster oil return pipe degasification structure only leans on an oil storage tank of setting to separate to lubricating oil and gas, oil
The mist of oil that the separating effect of gas or poor, parts of lubricating oil and combustion mixture and burning waste gas mix is easy direct
Enter oil sump along oil storage tank, influences the quality of lubricating oil.
Utility model content
It is above-mentioned to solve the purpose of this utility model is to provide a kind of vehicle engine booster oil return pipe degasification structure
The problem of being proposed in background technique.
To achieve the above object, the utility model provides the following technical solutions: a kind of vehicle engine booster oil return pipe
Degasification structure, including oil return pipe, fuel reserve tank, gas removing pipe and oil sump communicating pipe, the lower end of the oil return pipe are connected with
The left connector of one deaerating chamber is staggeredly equipped with baffle in the inner cavity of first deaerating chamber up and down from left to right, and described first removes
The lower connector of gas chamber is connected with the upper end of the first connecting tube, and the lateral wall lower part of first connecting tube is equipped with the first spiral shell
Line fixing sleeve, the lower thread of first connecting tube are connected with afflux set, and the lower end of the afflux set is equipped with taper catchment port,
The inside of the taper catchment port is equipped with spoiler, is uniformly provided with tap hole, the right side of first deaerating chamber on the spoiler
Connector is connected with the left end of the second connecting tube, and the right end of second connecting tube is connected with a left side for the second deaerating chamber
Connector, central tube is equipped in the inner cavity of second deaerating chamber, and the upper end of the central tube is upper with second deaerating chamber
Connector connection, the upper connector of second deaerating chamber are connected to connection with the lower end of the gas removing pipe, under the central tube
End extends close to the position of the lower connector of second deaerating chamber, and the lower connector of second deaerating chamber is connected with
The upper end of third connecting tube, the lateral wall lower part of the third connecting tube are equipped with second and are screwed set, the central tube it is interior
Portion is equipped with central axis, is fixedly connected with the first spiral between the lateral wall of the central tube and the inner sidewall of second deaerating chamber
Frame is fixedly connected with the second helical mount between the inner hole wall of the central tube and the lateral wall of the central axis；
It is equipped with oil liquid input port on the left of the upper end of the fuel reserve tank, the oil liquid input port is screwed set with described first
It is threadedly coupled, the inside of the oil liquid input port is protruded into the lower end of first connecting tube, sets on the right side of the upper end of the fuel reserve tank
There is a gas discharge outlet, the gas discharge outlet is connect with described second external threading that is screwed, the lower end of the third connecting tube
The inside of the gas discharge outlet is protruded into, tetrapyamid shape protrusion, the fuel reserve tank are equipped in the middle part of the inner chamber bottom surface of the fuel reserve tank
Inner chamber bottom surface quadrangle be equipped with oil liquid outlet, position corresponding with the oil liquid outlet on the lower surface of the fuel reserve tank
It is connected with one end of hose, the other end of the hose is connected to connection with the input terminal of diversion pipe joint, and described point
The output end of flow tube connector is connected to connection with the input terminal of the oil sump communicating pipe.
Preferably, the upper end of the oil return pipe is equipped with the first mounting flange.
Preferably, the upper end of the gas removing pipe is equipped with the second mounting flange.
Preferably, the installation settings position of the upper end of the oil return pipe and the upper end of the gas removing pipe is above the oil storage
The installation settings position of case.
Preferably, the left side wall of the fuel reserve tank is equipped with access hole, is equipped with maintenance by bolt on the access hole
Mouth capping, the fuel reserve tank are made of thermostable transparent plastic material.
Preferably, first deaerating chamber is made of one piece with the baffle using thermostable transparent plastic material, institute
It is saturating using high temperature resistant to state the second deaerating chamber, the central tube, first helical mount, the central axis and second helical mount
Bright plastic material is made of one piece.
Compared with prior art, the utility model has the beneficial effects that by the setting for the first deaerating chamber for being equipped with baffle,
Make from oil return pipe input gas mixture in the first deaerating chamber up and down bending flowing, tentatively make part combustion mixture and
Burning waste gas is detached from, and by the setting of afflux set and the spoiler equipped with tap hole in the first connecting tube, can make air-fuel mixture
Object is concentrated by afflux set and by the tap hole of spoiler to flowing down, and combustion mixture therein and burning waste gas are being flowed
It is easier to separate during dynamic, the setting of the second dirt pocket by being equipped with the first helical mount and the second helical mount can be to separation
Combustion mixture and burning waste gas out carries out further Oil-gas Separation, makes a small amount of lubricating oil wherein mixed can be along first
Helical mount and the second helical mount flow back to third connecting tube, avoid wasting, and by the setting of fuel reserve tank, can make by the first deaerating chamber
Gas mixture flow into fuel reserve tank via the first connecting tube and carry out standing storage, keep combustion mixture therein and burning useless
Gas is flowed up and is separated, and can receive a small amount of lubricating oil for separating in the second deaerating chamber, by tetrapyamid shape protrusion and
The oil liquid outlet of quadrangle is equipped with, and is made fuel reserve tank in arrangement installation at different angles, can lubricating oil be made to have
Effect is discharged via oil liquid outlet.The utility model can sufficiently carry out oil gas point to the gas mixture from engine supercharger
From avoiding the quality for influencing lubricating oil, and the lubricating oil isolated smooth can pass back into the oil sump of engine.
Detailed description of the invention
Fig. 1 is the Integral connection structure schematic diagram of the utility model；
Fig. 2 is the schematic diagram of internal structure of the fuel reserve tank of the utility model；
Fig. 3 is enlarged drawing at the A of Fig. 1；
Fig. 4 is enlarged drawing at the B of Fig. 1；
Fig. 5 is enlarged drawing at the C of Fig. 1；
Fig. 6 is enlarged drawing at the D of Fig. 1.
In figure: 1- oil return pipe, 2- fuel reserve tank, 3- gas removing pipe, 4- oil sump communicating pipe, the first deaerating chamber of 5-, 6- baffle, 7-
First connecting tube, 8- first is screwed set, 9- afflux set, 10- taper catchment port, 11- spoiler, 12- tap hole, 13-
Two connecting tubes, the second deaerating chamber of 14-, 15- central tube, 16- third connecting tube, 17- second be screwed set, 18- central axis,
The first helical mount of 19-, the second helical mount of 20-, 21- oil liquid input port, 22- gas discharge outlet, 23- tetrapyamid shape protrusion, 24- oil
Liquid outlet, 25- hose, 26- diversion pipe joint, the first mounting flange of 27-, the second mounting flange of 28-, 29- access hole, 30-
Bolt, the capping of 31- access hole.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-6 is please referred to, the utility model provides a kind of technical solution: a kind of vehicle engine booster oil return pipe degasification
Structure, including oil return pipe 1, fuel reserve tank 2, gas removing pipe 3 and oil sump communicating pipe 4, oil return pipe are used to connect with the oil return opening of booster
It connects, to receive the gas mixture for carrying out automatic pressure intensifier, gas removing pipe is for the input channel with the crankcase ventilation system of engine
Connection, the combustion mixture and burning waste gas isolated with draw-out device, fuel reserve tank are used to store the lubricating oil isolated,
For oil sump connecting tube for connecting oil sump, the lower end of the oil return pipe is connected with the left connector of the first deaerating chamber, institute
State in the inner cavity of the first deaerating chamber and to be staggeredly equipped with baffle 6 up and down from left to right, the setting of the first deaerating chamber equipped with baffle, make from
The bending flowing up and down in the first deaerating chamber of the gas mixture of oil return pipe input, tentatively makes part combustion mixture and burning
Exhaust gas is detached from, and the combustion mixture and burning waste gas isolated are discharged from the right connector of the first deaerating chamber, gas mixture
It is then flowed out from the lower connector of the first deaerating chamber, the lower connector of first deaerating chamber is connected with the first connecting tube 7
Upper end, the lateral wall lower part of first connecting tube are equipped with first and are screwed set 8, and the lower thread of first connecting tube connects
It is connected to afflux set 9, the lower end of the afflux set is equipped with taper catchment port 10, and the inside of the taper catchment port is equipped with spoiler
11, tap hole 12 is uniformly provided on the spoiler, and the afflux set in the first connecting tube and the spoiler equipped with tap hole are set
It sets, gas mixture can be made to concentrate by afflux set and by the tap hole of spoiler to flowing down, make combustion mixture therein
And burning waste gas is easier to separate in flow process, the right connector of first deaerating chamber is connected with the second connection
The left end of pipe 13, the right end of second connecting tube are connected with the left connector of the second deaerating chamber 14, second degasification
Central tube 15 is equipped in the inner cavity of room, the upper end of the central tube is connected to the upper connector of second deaerating chamber, and described the
The upper connector of two deaerating chambers is connected to connection with the lower end of the gas removing pipe, and the lower end of the central tube extends close to described
The lower connector of the position of the lower connector of two deaerating chambers, second deaerating chamber is connected with the upper of third connecting tube 16
End, the lateral wall lower part of the third connecting tube are equipped with second and are screwed set 17, and the inside of the central tube is equipped with central axis
18, the first helical mount 19 is fixedly connected between the lateral wall of the central tube and the inner sidewall of second deaerating chamber, it is described
The second helical mount 20 is fixedly connected between the inner hole wall of central tube and the lateral wall of the central axis, from the right side of the first deaerating chamber
The combustion mixture isolated and burning waste gas of connector discharge can flow into the second deaerating chamber in by the second connecting tube
In space between heart pipe, via the first helical mount to flow down, and with combustion mixture and burning waste gas from fuel reserve tank
Converge, is equipped with the first helical mount and second to upstream along the second helical mount using the space between central tube and newel
The setting of second dirt pocket of helical mount, a small amount of lubricating oil for making the combustion mixture isolated and mixing in burning waste gas can
Third connecting tube is flowed back to along the first helical mount and the second helical mount, avoids wasting；
Oil liquid input port 21 is equipped on the left of the upper end of the fuel reserve tank, the oil liquid input port is screwed with described first
The inside of the oil liquid input port is protruded into external threading connection, the lower end of first connecting tube, the first setting for being screwed set,
It connect the first connecting tube and oil liquid input port can closely, by the gas mixture of the first deaerating chamber via the first connecting tube stream
Enter fuel reserve tank and carry out standing storage, flows up combustion mixture therein and burning waste gas and separate, the fuel reserve tank
Upper end on the right side of be equipped with gas discharge outlet 22, the gas discharge outlet is connect with described second external threading that is screwed, the second spiral shell
The setting of line fixing sleeve connect third connecting tube and gas discharge outlet can closely, and institute is protruded into the lower end of the third connecting tube
State the inside of gas discharge outlet, the combustion mixture separated in fuel reserve tank and burning waste gas can enter the via third connecting tube
Two deaerating chamber further progress Oil-gas Separations, and a small amount of lubricating oil that the second deaerating chamber can be made to separate passes back into fuel reserve tank
In, tetrapyamid shape protrusion 23 is equipped in the middle part of the inner chamber bottom surface of the fuel reserve tank, the inner chamber bottom surface quadrangle of the fuel reserve tank is equipped with
Oil liquid outlet 24, position corresponding with the oil liquid outlet is connected with hose 25 on the lower surface of the fuel reserve tank
One end, the other end of the hose is connected to connection, the output of the diversion pipe joint with the input terminal of diversion pipe joint 26
End is connected to connection with the input terminal of the oil sump communicating pipe, and the output end of oil sump communicating pipe and the oil sump of engine connect
It connects, the lubricating oil stored in fuel reserve tank can flow into oily bottom via oil liquid outlet, hose, diversion pipe joint and oil sump communicating pipe
Shell continues to use, the oil liquid outlet of tetrapyamid shape protrusion and quadrangle is equipped with, and makes fuel reserve tank at different angles
When arrangement installation, lubricating oil can be effectively discharged via oil liquid outlet.
Specifically, the upper end of the oil return pipe is equipped with the first mounting flange 27, facilitate time by oil return pipe and booster
Hydraulic fluid port connection.
Specifically, the upper end of the gas removing pipe is equipped with the second mounting flange 28, facilitate the song by gas removing pipe and engine
The input channel of ventilation system for shaft box connects.
Specifically, the installation settings position of the upper end of the oil return pipe and the upper end of the gas removing pipe is above the storage
The installation settings position of fuel tank makes the lubricating oil of recycling that can sufficiently flow downwardly into fuel reserve tank, and makes mixed flammable in lubricating oil
Gaseous mixture and burning waste gas are sufficiently separated.
Specifically, the left side wall of the fuel reserve tank is equipped with access hole 29, installed on the access hole by bolt 30
There is access hole to cover 31, access hole is played in use when access hole is used to need to clear up the greasy dirt in fuel reserve tank, access hole capping
Sealing function prevents access hole oil leak, and the fuel reserve tank is made of thermostable transparent plastic material, convenient for the lubricating oil checked
Situation.
Specifically, first deaerating chamber is made of one piece with the baffle using thermostable transparent plastic material,
Convenient for checking the internal state of the first deaerating chamber, to carry out cleaning and maintenance, second deaerating chamber, the central tube, institute in time
It states the first helical mount, the central axis to be made of one piece with second helical mount using thermostable transparent plastic material, just
In the internal state for checking the second deaerating chamber, to carry out cleaning and maintenance in time.
Working principle: oil return pipe with the oil return opening of booster for connecting, to receive the gas mixture for carrying out automatic pressure intensifier,
Gas removing pipe with the input channel of the crankcase ventilation system of engine for connecting, the combustion mixture isolated with draw-out device
And burning waste gas, fuel reserve tank are equipped with gear for connecting oil sump for storing the lubricating oil isolated, oil sump connecting tube
The setting of first deaerating chamber of plate makes the gas mixture inputted from oil return pipe bending flowing up and down in the first deaerating chamber, just
Step makes part combustion mixture and burning waste gas disengaging, the combustion mixture isolated and burning waste gas from the first deaerating chamber
The discharge of right connector, gas mixture then flows out from the lower connector of the first deaerating chamber, afflux set in the first connecting tube and
The setting of spoiler equipped with tap hole, can be such that gas mixture concentrates by afflux set and the tap hole for passing through spoiler is downward
Stream makes combustion mixture therein and burning waste gas be easier to separate in flow process, from the right connection of the first deaerating chamber
The combustion mixture isolated and burning waste gas of mouth discharge can pass through the second connecting tube and flow into the second deaerating chamber and central tube
Between space in, via the first helical mount to flow down, and with from fuel reserve tank combustion mixture and burning waste gas converge,
The first helical mount and the second helical mount are equipped with to upstream along the second helical mount using the space between central tube and newel
The second dirt pocket setting, a small amount of lubricating oil for making the combustion mixture isolated and mixing in burning waste gas can be along
One helical mount and the second helical mount flow back to third connecting tube, avoid wasting, and the first setting for being screwed set makes the first connecting tube
It can closely be connected with oil liquid input port, flow into fuel reserve tank via the first connecting tube by the gas mixture of the first deaerating chamber and carry out
Storage is stood, combustion mixture therein and burning waste gas is flowed up and separates, the second setting for being screwed set makes
Third connecting tube and gas discharge outlet can be connected closely, and the combustion mixture and burning waste gas separated in fuel reserve tank can be via
Three connecting tubes enter the second deaerating chamber further progress Oil-gas Separation, and a small amount of lubricating oil that the second deaerating chamber can be made to separate
It passes back into fuel reserve tank, the output end of oil sump communicating pipe and the oil sump of engine connect, the lubricating oil stored in fuel reserve tank
Oil sump can be flowed into via oil liquid outlet, hose, diversion pipe joint and oil sump communicating pipe to continue to use, tetrapyamid shape protrusion
With being equipped with for the oil liquid outlet of quadrangle, makes fuel reserve tank in arrangement installation at different angles, can make lubricating oil
Effectively it is discharged via oil liquid outlet.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (6)
1. a kind of vehicle engine booster oil return pipe degasification structure, including oil return pipe (1), fuel reserve tank (2), gas removing pipe (3) and
Oil sump communicating pipe (4), it is characterised in that: the lower end of the oil return pipe (1) is connected with the left connection of the first deaerating chamber (5)
Mouthful, baffle (6) staggeredly are equipped with up and down from left to right in the inner cavity of first deaerating chamber (5), under first deaerating chamber (5)
Connector is connected with the upper end of the first connecting tube (7), and the lateral wall lower part of first connecting tube (7) is equipped with the first screw thread
The lower thread of fixing sleeve (8), first connecting tube (7) is connected with afflux set (9), and the lower end of the afflux set (9) is equipped with
The inside of taper catchment port (10), the taper catchment port (10) is equipped with spoiler (11), uniformly sets on the spoiler (11)
Having tap hole (12), the right connector of first deaerating chamber (5) is connected with the left end of the second connecting tube (13), and described
The right end of two connecting tubes (13) is connected with the left connector of the second deaerating chamber (14), the inner cavity of second deaerating chamber (14)
In be equipped with central tube (15), the upper end of the central tube (15) is connected to the upper connector of second deaerating chamber (14), described
The upper connector of second deaerating chamber (14) is connected to connection with the lower end of the gas removing pipe (3), and the lower end of the central tube (15) is prolonged
The position of the lower connector close to second deaerating chamber (14) is extended to, the lower connector of second deaerating chamber (14), which is connected to, to be connected
It is connected to the upper end of third connecting tube (16), the lateral wall lower part of the third connecting tube (16) is equipped with second and is screwed set
(17), the inside of the central tube (15) is equipped with central axis (18), the lateral wall of the central tube (15) and second degasification
It is fixedly connected between the inner sidewall of room (14) the first helical mount (19), the inner hole wall and the central axis of the central tube (15)
(18) the second helical mount (20) are fixedly connected between lateral wall；
Oil liquid input port (21) are equipped on the left of the upper end of the fuel reserve tank (2), the oil liquid input port (21) and first spiral shell
Line fixing sleeve (8) is threadedly coupled, and the inside of the oil liquid input port (21) is protruded into the lower end of first connecting tube (7), described
Gas discharge outlet (22) are equipped on the right side of the upper end of fuel reserve tank (2), the gas discharge outlet (22) is screwed set with described second
(17) it is threadedly coupled, the inside of the gas discharge outlet (22), the fuel reserve tank are protruded into the lower end of the third connecting tube (16)
(2) it is raised (23) that tetrapyamid shape is equipped in the middle part of inner chamber bottom surface, the inner chamber bottom surface quadrangle of the fuel reserve tank (2) is equipped with oil liquid row
It exports (24), position corresponding with oil liquid outlet (24) is connected with soft on the lower surface of the fuel reserve tank (2)
The one end of (25) is managed, the other end of the hose (25) is connected to connection, the shunting with the input terminal of diversion pipe joint (26)
The output end of pipe fitting (26) is connected to connection with the input terminal of the oil sump communicating pipe (4).
2. a kind of vehicle engine booster oil return pipe degasification structure according to claim 1, it is characterised in that: described time
The upper end of oil pipe (1) is equipped with the first mounting flange (27).
3. a kind of vehicle engine booster oil return pipe degasification structure according to claim 1, it is characterised in that: described to remove
The upper end of tracheae (3) is equipped with the second mounting flange (28).
4. a kind of vehicle engine booster oil return pipe degasification structure according to claim 1, it is characterised in that: described time
The installation settings position of the upper end of the upper end and gas removing pipe (3) of oil pipe (1) is above the installation settings of the fuel reserve tank (2)
Position.
5. a kind of vehicle engine booster oil return pipe degasification structure according to claim 1, it is characterised in that: the storage
The left side wall of fuel tank (2) is equipped with access hole (29), is equipped with access hole capping by bolt (30) on the access hole (29)
(31), the fuel reserve tank (2) is made of thermostable transparent plastic material.
6. a kind of vehicle engine booster oil return pipe degasification structure according to claim 1, it is characterised in that: described
One deaerating chamber (5) is made of one piece with the baffle (6) using thermostable transparent plastic material, second deaerating chamber
(14), the central tube (15), first helical mount (19), the central axis (18) and second helical mount (20) use
Thermostable transparent plastic material is made of one piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820983008.8U CN208416691U (en) | 2018-06-25 | 2018-06-25 | A kind of vehicle engine booster oil return pipe degasification structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820983008.8U CN208416691U (en) | 2018-06-25 | 2018-06-25 | A kind of vehicle engine booster oil return pipe degasification structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208416691U true CN208416691U (en) | 2019-01-22 |
Family
ID=65107798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820983008.8U Expired - Fee Related CN208416691U (en) | 2018-06-25 | 2018-06-25 | A kind of vehicle engine booster oil return pipe degasification structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN208416691U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757162A (en) * | 2018-06-25 | 2018-11-06 | 南京世界村汽车动力有限公司 | A kind of vehicle engine booster oil return pipe degasification structure |
-
2018
- 2018-06-25 CN CN201820983008.8U patent/CN208416691U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757162A (en) * | 2018-06-25 | 2018-11-06 | 南京世界村汽车动力有限公司 | A kind of vehicle engine booster oil return pipe degasification structure |
| CN108757162B (en) * | 2018-06-25 | 2024-08-30 | 亳州中知知识产权运营有限公司 | Oil return pipe degassing structure of automobile engine supercharger |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190122 Termination date: 20210625 |
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| CF01 | Termination of patent right due to non-payment of annual fee |