CN208040480U - Gs-oil separator - Google Patents
Gs-oil separator Download PDFInfo
- Publication number
- CN208040480U CN208040480U CN201820091937.8U CN201820091937U CN208040480U CN 208040480 U CN208040480 U CN 208040480U CN 201820091937 U CN201820091937 U CN 201820091937U CN 208040480 U CN208040480 U CN 208040480U
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- Prior art keywords
- helical duct
- oil
- deflector
- oil separator
- shell
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- Expired - Fee Related
Links
- 238000000926 separation method Methods 0.000 abstract description 9
- 239000003921 oil Substances 0.000 description 62
- 239000007789 gas Substances 0.000 description 55
- 239000010721 machine oil Substances 0.000 description 18
- 239000002245 particle Substances 0.000 description 14
- 239000000203 mixture Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008246 gaseous mixture Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 239000010705 motor oil Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Separating Particles In Gases By Inertia (AREA)
Abstract
The utility model provides a kind of gs-oil separator, which includes：Shell has oil gas entrance, exhaust outlet and oil return opening；Helical duct, setting is on the inner wall of the housing, helical duct has the first end and second end being oppositely arranged, the diameter of the first end of helical duct is more than the diameter of the second end of helical duct, the first end of helical duct is connected to oil gas entrance, the second end of helical duct is connected to oil return opening, and helical duct is connected to exhaust outlet.Gs-oil separator low separation efficiency in the prior art can be solved the problems, such as by technical solution provided by the utility model.
Description
Technical field
The utility model is related to technical field of automobile engine, in particular to a kind of gs-oil separator.
Background technology
At work, the indoor indoor portion gas of burning that burns can alter automobile engine with the reciprocating motion of piston
Enter into crankcase, these gases are generally again introduced into combustion chamber by crankcase ventilation system, participate in burning discharge.With hair
The particle diameter of the development of motivation technology, crankcase inner engine oil substantially reduces than before, and crank case gases are easier to carry a large amount of
Machine oil particle be discharged crankcase, to the phenomenon for causing consumption of lubricating oil high.Therefore, efficient oil and gas separating system is required
's.
In automotive engine applications, what is be all made of at present is the gs-oil separator of passive type, the oil gas of common passive type
Separator can be divided into centrifugal, impacting type and filtering type.Currently, filtering type centrifuge needs to regularly replace filter core when running,
So that operation and maintenance are troublesome, of high cost.The occupied space of impacting type centrifuge is big, and being unsatisfactory for Engine Downsizing development needs
It asks.Thus the prior art mainly adopts cyclone, existing cyclone is simple in structure, failure rate is low, but deposits
In the not high problem of separative efficiency.
Utility model content
The utility model provides a kind of gs-oil separator, to solve gs-oil separator low separation efficiency in the prior art
Problem.
The utility model provides a kind of gs-oil separator, which includes：Shell has oil gas entrance, row
Gas port and oil return opening；Helical duct, on the inner wall of the housing, helical duct has the first end and second being oppositely arranged for setting
End, the diameter of the first end of helical duct are more than the diameter of the second end of helical duct, and first end and the oil gas of helical duct enter
Mouth connection, the second end of helical duct are connected to oil return opening, and helical duct is connected to exhaust outlet.
Further, gs-oil separator further includes exhaust passage, which is arranged in shell, and helical duct surrounds
Exhaust passage is arranged, and helical duct is connected to exhaust passage, and exhaust outlet is connected to exhaust passage.
Further, exhaust passage gs-oil separator further includes oil guiding hole, which is arranged on helical duct.
Further, shell includes separate pipeline, and oil gas entrance is arranged on the side wall of separate pipeline, and separate pipeline has
The second end of interconnected first end and second end, separate pipeline is provided with oil return opening, and helical duct is arranged in separate pipeline
Inner wall on, the first end of helical duct corresponds to the first end setting of separate pipeline, and the second end of helical duct corresponds to separating pipe
The second end in road is arranged；Cover board is arranged the first end in separate pipeline, exhaust outlet is provided on cover board.
Further, separate pipeline is pyramidal structure, and the diameter of the first end of separate pipeline is more than the of separate pipeline
The diameter at two ends.
Further, helical duct includes deflector, and deflector spiral is arranged on the inner wall of the housing.
Further, deflector has the first side and second side being oppositely arranged, the first side of deflector and shell
The inner wall of body is connected, and the second end of second side towards the helical duct of deflector extends.
Further, the area of section of the first end positioned at helical duct of deflector is more than the logical positioned at spiral of deflector
The area of section of the second end in road.
Further, what the width of the first end positioned at helical duct of deflector was more than deflector is located at helical duct
The width of second end.
Further, helical duct includes multiple deflectors, and multiple deflectors are arranged at intervals on shell along the hand of spiral
On inner wall.
Using the technical solution of the utility model, which includes shell and helical duct, wherein shell has
Oil gas entrance, exhaust outlet and oil return opening；Helical duct is arranged on the inner wall of the housing, and helical duct has and is oppositely arranged
First end and second end, the diameter of the first end of helical duct are more than the diameter of the second end of helical duct, and the of helical duct
One end is connected to oil gas entrance, and the second end of helical duct is connected to oil return opening, and helical duct is connected to exhaust outlet.It is mixed in oil gas
Gas is closed after oil gas entrance enters helical duct, is separated fluid and gas by centrifugal action, fluid passes through helical duct
Oil return opening is flowed into, and gas then flow to exhaust outlet in helical duct, and be discharged from exhaust outlet.Using provided by the utility model
Gs-oil separator can carry out Oil-gas Separation using the confined space, improve the separative efficiency of oil gas.
Description of the drawings
The accompanying drawings which form a part of this application are used to provide a further understanding of the present invention, this practicality
Novel illustrative embodiments and their description are not constituted improper limits to the present invention for explaining the utility model.
In the accompanying drawings：
Fig. 1 shows the sectional view of gs-oil separator provided by the utility model；
Fig. 2 shows the front views of gs-oil separator provided by the utility model；
Fig. 3 shows the vertical view of gs-oil separator provided by the utility model.
Wherein, above-mentioned attached drawing includes the following drawings label：
10, shell；11, oil gas entrance；12, exhaust outlet；13, oil return opening；20, helical duct.
Specific implementation mode
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.It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1 to Figure 3, the utility model embodiment provides a kind of gs-oil separator, which includes shell
Body 10 and helical duct 20.Wherein, shell 10 has oil gas entrance 11, exhaust outlet 12 and oil return opening 13.Helical duct 20 is set
It sets on the inner wall of shell 10, helical duct 20 has the first end and second end being oppositely arranged, the first end of helical duct 20
Diameter be more than helical duct 20 second end diameter, the first end of helical duct 20 is connected to oil gas entrance 11, and spiral is led to
The second end in road 20 is connected to oil return opening 13, and helical duct 20 is connected to exhaust outlet 12.Preferably, the spiral in the present embodiment is logical
Road 20 has multi layer spiral structure, and the helical duct 20 could be provided as rotation direction clockwise, may be set to be rotation counterclockwise
To.
The design principle of gs-oil separator in the present embodiment be based on screw type be oriented to centrifugation technique, the technology it is basic
Principle includes mainly centrifugal force calculation formula F=mv2/ r and Kinetic Energy Calculation formula Q=∫ Δ m ∫ Δs vmv2Dvdm, herein can be false
If wall surface is smooth, and ignores air drag.But in actual analysis, there is still a need for consider air drag by designer.
Using the whizzer of the utility model, when the gas for carrying machine oil is entered by oil gas entrance 11 with certain speed
When the whizzer, fuel-air mixture will initially enter the first layer helical structure of helical duct 20.At this point, since oil gas is mixed
The machine oil density for closing the largest particles diameter in gas is more than the density of gas, therefore in the effect of identical jet velocity and centrifugation radius
Under, machine oil particle is collided due to the centrifugal force by bigger to 10 inner wall of shell, and falls to spiral shell under the effect of gravity
It revolves on channel 20, so that machine oil particle is separated from gas.In the present embodiment, the whizzer structure
Simply, manufacturing cost is low, can meet the condition of Oil-gas Separation in a limited space, achievees the effect that Oil-gas Separation, ensures oil
Gas separative efficiency.
Specifically, in the present embodiment, which further includes exhaust passage, which is arranged in shell 10
Interior, helical duct 20 is arranged around exhaust passage, and helical duct 20 is connected to exhaust passage, and exhaust outlet 12 connects with exhaust passage
It is logical.
Since helical duct 20 to be arranged around exhaust passage in the present embodiment, and helical duct 20 and exhaust passage are connected
It is logical so that fuel-air mixture is after first layer helical structure, at this point, isolated clean gas can be directly by vacuum source
It is sucked out from exhaust outlet 12, this portion gas can not have to enter next helical layer structure, so to reduce the pressure of gas
Loss.At this point, the machine oil due to bulky grain is detached, remaining fuel-air mixture quality reduces, while remaining air-fuel mixture
Gas will enter second layer helical structure.According to Kinetic Energy Calculation formula it is found that when mixed gas quality m reduces, since wall surface is smooth, speed
It is constant to spend v, therefore gaseous mixture entirety kinetic energy declines.And according to centrifugal force formula it is found that in order to keep enough centrifugal force, phase
The radius of second layer helical structure need to be reduced with answering.When remaining fuel-air mixture is in process second layer helical structure, at this point,
Larger-diameter machine oil particle will be also separated, while clean gas is then sucked out by vacuum source from exhaust outlet 12.Pass through
Helical structure is detached step by step, so as to reduce pressure loss as far as possible while reaching Oil-gas Separation purpose.
Entering the process of first layer helical structure and second layer helical structure by above-mentioned fuel-air mixture can analogize, when into
Enter third layer, the 4th layer, the helical structure of layer 5 even more multilayer when, the machine oil of more small particle diameters is separated, together
When clean gas be then sucked out from exhaust outlet 12 by vacuum source.Theoretically, as long as there is the helical structure of enough multilayers, it will be able to make
Crank case gases and machine oil are kept completely separate.And in fact, as 0.5 μm of machine oil particle diameter <, the machine oil in fuel-air mixture
Content is substantially very little, therefore It is not necessary to arrange excessive helical structure in actual conditions.Staff can root
According to specific works situation, different layers of helical structures are set.
In the present embodiment, which is the cavity at 20 middle part of helical duct, every layer of helical duct 20
Structure is connected to the exhaust passage, and shell 10 is discharged for the ease of the gas after separation, can be positioned close to exhaust outlet 12
The position of the first end of helical duct 20.
Specifically, gs-oil separator further includes oil guiding hole, which is arranged on helical duct 20.The oil guiding hole is used for
The machine oil on helical duct 20 is set to be back to oil return opening 13 in time, it is preferable that multiple oil guiding holes can be set on helical duct 20.?
In the present embodiment, oil guiding hole is both provided on every helical layer channel 20.
As shown in Figure 1, in the present embodiment, shell 10 includes separate pipeline and cover board.The setting of oil gas entrance 11 is detaching
On the side wall of pipeline, there is separate pipeline interconnected first end and second end, the second end of separate pipeline to be provided with oil return
Mouth 13.Helical duct 20 is arranged on the inner wall of separate pipeline, and the first end of helical duct 20 corresponds to the first end of separate pipeline
The second end of setting, helical duct 20 corresponds to the second end setting of separate pipeline.So when by oil gas 11 air inlet of entrance, energy
So that mixed gas is can smoothly enter into helical duct 20, reduces loss as far as possible.The first end in separate pipeline is arranged in cover board, and covers
Exhaust outlet 12 is provided on plate.Discharge duct can be also set on the exhaust outlet 12, so in order to the clean gas after detaching
The gs-oil separator is discharged.
Preferably, the oil gas entrance 11 in the present embodiment is tapered closing in, and the oil gas entrance 11 is by the outer of shell 10
Lateral inner wall direction is tapered.According to bernoulli principle, this tapered closing-in structure is conducive to increase the air-flow of fuel-air mixture
Speed, to increase its centrifugal force.The section of oil gas entrance 11 can be rationally arranged according to actual conditions, in the present embodiment
Oil gas entrance 11 rectangular cross-section.
In the present embodiment, the contour structures of separate pipeline and inner passage are disposed as pyramidal structure, and separating pipe
The diameter of the first end in road is more than the diameter of the second end of separate pipeline.By by the structure phase of separate pipeline and helical duct 20
It is corresponding, the occupied space of the device can be reduced as far as possible.
Wherein, being formed for helical duct 20 can be the bathtub construction opened up on 10 inner wall of shell, or in shell
Deflector is set on 10 inner wall of body, which is formed by deflector.The helical duct 20 is by water conservancy diversion in the present embodiment
Plate is constituted, which is arranged on the inner wall of shell 10.Helical duct 20 is constituted between deflector adjacent two layers.It is preferred that
The contact surface on ground, deflector and machine oil particle may be configured as smooth flat, so to reduce the friction of machine oil particle and deflector,
To ensure that machine oil particle enters the speed of oil return opening 13.
Specifically, deflector has the first side and second side being oppositely arranged, the first side of deflector and shell
10 inner wall is connected, and the second end of second side towards the helical duct 20 of deflector extends.Setting in this way so that fall
Machine oil particle on deflector can faster enter in oil return opening 13 under the effect of gravity.Preferably, the water conservancy diversion in the present embodiment
The angle that the second end of the second side of plate towards helical duct 20 extends is 12 degree.
Specifically, the area of section of the first end positioned at helical duct 20 of deflector is more than the logical positioned at spiral of deflector
The area of section of the second end in road 20.When fuel-air mixture constantly enters helical duct 20, pass through with fuel-air mixture
The helical structure number of plies is continuously increased, and the quality of remaining fuel-air mixture constantly reduces, and therefore, helical duct 20 can be arranged
For variable cross-section, and there is what the area of section for the first end that deflector is located at helical duct 20 was more than deflector to be located at helical duct 20
Second end area of section.
Preferably, the width of the first end positioned at helical duct 20 of deflector can be set greater than to the position of deflector
In the width of the second end of helical duct 20, so to ensure having suitable split tunnel, convenient for gas smoothly from exhaust outlet 12
Middle discharge.In addition, deflector may be alternatively provided as wide deflector, width may be configured as 4mm.Oil-gas Separation in the present embodiment
The exhaust outlet 12 of device and the section of oil return opening 13 may be configured as circle, and the length of the oil return opening may be configured as 50mm, in order to receive
Collect the machine oil particle separated.
In the present embodiment, which is formed by continuous deflector.Certain helical duct 20 also may be used
It is arranged to be formed by multiple deflector intervals.Specifically, can shell 10 be arranged at intervals on along the hand of spiral for multiple deflectors
On inner wall.The structure can reduce the deflector needed for device, to reduce the weight of whizzer.
Using the whizzer in the present embodiment, which includes shell 10 and helical duct 20.Work as oil gas
After oil gas entrance 11 enters the whizzer, fuel-air mixture will pass through helical duct 20 and carry out Oil-gas Separation gaseous mixture,
As machine oil particle is constantly separated from fuel-air mixture, clean gas will also be discharged from exhaust outlet 12.Use this reality
The gs-oil separator in example is applied, separative efficiency is not only increased, also reduces the pressure between oil gas entrance 11 and exhaust outlet 12
Difference, to reduce the pressure loss.
It should be noted that term used herein above is merely to describe specific implementation mode, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, attached shown in the drawings each
The size of a part is not to be drawn according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should be noted that：It is similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
It need not be further discussed in attached drawing afterwards.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or with specific azimuth configuration and operation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, herein can with use space relative terms, as " ... on ", " in ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, if the device in attached drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (be rotated by 90 ° or be in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
Furthermore, it is necessary to which explanation, limits parts, it is only for be convenient for using the words such as " first ", " second "
Corresponding parts are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of gs-oil separator, which is characterized in that the gs-oil separator includes：
Shell (10) has oil gas entrance (11), exhaust outlet (12) and oil return opening (13)；
Helical duct (20) is arranged on the inner wall of the shell (10), and the helical duct (20) has the be oppositely arranged
One end and second end, the diameter of the first end of the helical duct (20) are more than the straight of the second end of the helical duct (20)
Diameter, the first end of the helical duct (20) are connected to the oil gas entrance (11), the second end of the helical duct (20) with
Oil return opening (13) connection, the helical duct (20) are connected to the exhaust outlet (12).
2. gs-oil separator according to claim 1, which is characterized in that the gs-oil separator further includes：
Exhaust passage, in the shell (10), the helical duct (20) is arranged around the exhaust passage, and described for setting
Helical duct (20) is connected to the exhaust passage, and the exhaust outlet (12) is connected to the exhaust passage.
3. gs-oil separator according to claim 1, which is characterized in that the gs-oil separator further includes：
Oil guiding hole is arranged on the helical duct (20).
4. gs-oil separator according to claim 1, which is characterized in that the shell (10) includes：
Separate pipeline, the oil gas entrance (11) are arranged on the side wall of the separate pipeline, and the separate pipeline has mutual
The second end of the first end and second end of connection, the separate pipeline is provided with the oil return opening (13), the helical duct
(20) it is arranged on the inner wall of the separate pipeline, the first end of the helical duct (20) corresponds to the first of the separate pipeline
The second end of end setting, the helical duct (20) corresponds to the second end setting of the separate pipeline；
The first end in the separate pipeline is arranged in cover board, and the exhaust outlet (12) is provided on the cover board.
5. gs-oil separator according to claim 4, which is characterized in that the separate pipeline is pyramidal structure, and described
The diameter of the first end of separate pipeline is more than the diameter of the second end of the separate pipeline.
6. gs-oil separator according to any one of claim 1 to 5, which is characterized in that helical duct (20) packet
It includes：
Deflector, the deflector spiral are arranged on the inner wall of the shell (10).
7. gs-oil separator according to claim 6, which is characterized in that the deflector has the first side being oppositely arranged
Side and second side, the first side of the deflector are connected with the inner wall of the shell (10), and the second of the deflector
The second end of side towards the helical duct (20) extends.
8. gs-oil separator according to claim 6, which is characterized in that the deflector is located at the helical duct
(20) area of section of first end is more than the area of section of the second end positioned at the helical duct (20) of the deflector.
9. gs-oil separator according to claim 8, which is characterized in that the deflector is located at the helical duct
(20) width of first end is more than the width of the second end positioned at the helical duct (20) of the deflector.
10. gs-oil separator according to claim 6, which is characterized in that the helical duct (20) includes multiple described
Deflector, multiple deflectors are along the inner wall that the hand of spiral is arranged at intervals on the shell (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091937.8U CN208040480U (en) | 2018-01-19 | 2018-01-19 | Gs-oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820091937.8U CN208040480U (en) | 2018-01-19 | 2018-01-19 | Gs-oil separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208040480U true CN208040480U (en) | 2018-11-02 |
Family
ID=63953500
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820091937.8U Expired - Fee Related CN208040480U (en) | 2018-01-19 | 2018-01-19 | Gs-oil separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208040480U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131135A (en) * | 2019-06-10 | 2019-08-16 | 珠海凌达压缩机有限公司 | Oil blocking assembly, compressor and air conditioning system |
| CN110440321A (en) * | 2019-07-16 | 2019-11-12 | 林庆森 | Flue grease separator and its range hood |
-
2018
- 2018-01-19 CN CN201820091937.8U patent/CN208040480U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131135A (en) * | 2019-06-10 | 2019-08-16 | 珠海凌达压缩机有限公司 | Oil blocking assembly, compressor and air conditioning system |
| CN110440321A (en) * | 2019-07-16 | 2019-11-12 | 林庆森 | Flue grease separator and its range hood |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Oil gas separator Effective date of registration: 20211213 Granted publication date: 20181102 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20231201 Granted publication date: 20181102 Pledgee: BEIJING AUTOMOTIVE GROUP Co.,Ltd. Pledgor: Beijing baowo Automobile Co.,Ltd.|Borgward Automotive (China) Co., Ltd. Registration number: Y2021990001167 |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181102 |