CN220979598U - Universal base for engine oil driven separating device and separating device assembly - Google Patents
Universal base for engine oil driven separating device and separating device assembly Download PDFInfo
- Publication number
- CN220979598U CN220979598U CN202322708826.0U CN202322708826U CN220979598U CN 220979598 U CN220979598 U CN 220979598U CN 202322708826 U CN202322708826 U CN 202322708826U CN 220979598 U CN220979598 U CN 220979598U
- Authority
- CN
- China
- Prior art keywords
- oil
- engine
- base
- oil inlet
- separator
- Prior art date
- 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.)
- Active
Links
- 239000010705 motor oil Substances 0.000 title claims abstract description 36
- 239000003921 oil Substances 0.000 claims abstract description 173
- 238000000926 separation method Methods 0.000 claims abstract description 46
- 238000005266 casting Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Landscapes
- Centrifugal Separators (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to the technical field of oil-gas separation, in particular to a universal base for an engine oil driven separation device and a separation device assembly. The universal base includes: a base body, a body part and a separating part; an oil return cavity is formed in one side, facing the machine body, of the base body, an accommodating cavity is formed in one side, facing the separation part, of the base body, and a shaft hole seat is arranged in the accommodating cavity; the oil return device comprises a base body, and is characterized in that an oil return hole is formed in the base body and is communicated with the oil return cavity, an oil inlet level is formed in the machine body, a first oil inlet passage communicated with the accommodating cavity or a second oil inlet passage communicated with the shaft hole seat is formed in the oil inlet level, a connecting shaft is arranged on the base body, and the connecting shaft is used for providing the second oil inlet passage. The utility model realizes the matched installation of different separating devices and ensures the separating effect, thereby facilitating the material management, reducing the types of the dies and lowering the cost.
Description
Technical Field
The utility model relates to the technical field of oil-gas separation, in particular to a universal base for an engine oil driven separation device and a separation device assembly.
Background
The engine oil driving separation device is used for filtering impurities and gas in the oil, and particles in the mixed air flow are separated out under the action of centrifugal force by means of rotating vortex in the oil-gas separation device, so that the engine is good in operation, and the service life of the engine is prolonged.
The engine oil driving and separating device is arranged on the engine through the base, and driving oil directly enters the interior of the driving and separating device through the connecting surface of the base and the engine. The engine oil driven separating device is divided into an active oil-gas separator, a centrifugal rotor filter and the like, and the base structure forms matched with different separator devices are various, so that the material management and the mold development are not facilitated.
Disclosure of utility model
Aiming at the defects existing in the prior art, the embodiment of the utility model aims to provide a universal base for an engine oil driving and separating device, and the universal base can be matched with different engine oil driving and separating devices, so that the material management is convenient, the types of dies are reduced, and the cost is reduced.
In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions:
A universal base for an oil-driven separator device for mounting the oil-driven separator device to an engine, comprising: a base body, a body part and a separating part; an oil return cavity is formed in one side, facing the machine body, of the base body, an accommodating cavity is formed in one side, facing the separation part, of the base body, and a shaft hole seat is arranged in the accommodating cavity; the oil return device comprises a base body, and is characterized in that an oil return hole is formed in the base body and is communicated with the oil return cavity, an oil inlet level is formed in the machine body, a first oil inlet passage communicated with the accommodating cavity or a second oil inlet passage communicated with the shaft hole seat is formed in the oil inlet level, a connecting shaft is arranged on the base body, and the connecting shaft is used for providing the second oil inlet passage.
Optionally, the engine oil driving and separating device comprises an active oil-gas separator and a centrifugal rotor filter.
Optionally, when the engine oil driving separation device is an active oil-gas separator, one end of the oil return hole is communicated with the active oil-gas separator, and the other end of the oil return hole is communicated with the oil return cavity of the universal base; the oil inlet position is provided with a nozzle, the nozzle is internally provided with the first oil inlet channel, one end of the nozzle is communicated with the engine at the oil inlet position, and the other end of the nozzle faces towards the impeller of the active oil-gas separator in the accommodating cavity.
Optionally, when the engine oil driving and separating device is a centrifugal rotor filter, the second oil inlet channel is arranged in the connecting shaft, one end of the second oil inlet channel is communicated with the engine at an oil inlet position, and the other end of the second oil inlet channel is communicated with the shaft hole seat.
Optionally, the separation portion is provided with a first connection hole, and the universal base and the engine oil driving separation device are detachably connected through the first connection hole.
Optionally, a second connecting hole is formed in the machine body, and the universal base is detachably connected with the engine through the second connecting hole.
Optionally, a first groove is arranged on the end face of the engine body, which is in contact with the engine, and the first groove is arranged on the periphery of the oil return cavity.
Optionally, a second groove is arranged on the end face of the engine body, which is in contact with the engine, the second groove is arranged on the periphery of the oil inlet level, and the first groove and the second groove are communicated.
Optionally, the base body, the machine body part and the separating part are integrally formed by casting.
The embodiment of the utility model also provides a separation device assembly which comprises an active oil-gas separator and the universal base for the engine oil driving separation device or comprises a centrifugal rotor filter and the universal base for the engine oil driving separation device.
One or more technical solutions provided in the embodiments of the present utility model at least have the following technical effects or advantages:
The utility model utilizes the relative position relation between the impeller and the nozzle of the active oil-gas separator and the axial oil inlet characteristic of the filter center of the centrifugal rotor on the basis of analyzing the working principles and structural differences of different oil-driven separation devices. Unifying an A-type oil inlet of the existing A-type base and a B-type oil inlet of the B-type base, and arranging a connecting shaft on the base body, wherein one end of the connecting shaft is connected with a shaft hole seat, and the other end of the connecting shaft is connected with an oil inlet level. When the universal base is installed with the active oil-gas separator, a first oil inlet channel communicated with the accommodating cavity is processed at the oil inlet position, and oil is returned in the oil return hole; when the universal base is installed with the centrifugal rotor filter, the second oil inlet channel communicated with the shaft hole seat is processed at the oil inlet position, so that the matched installation of different separating devices is realized, the separating effect is ensured, the material management is facilitated, the types of dies are reduced, and the cost is reduced.
Additional aspects of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a conventional active oil-gas separator in combination with an A-type base;
FIG. 2 is a schematic diagram of a conventional centrifugal rotor filter and B-base fit;
FIG. 3 is a schematic diagram of the cooperation of a general base and an active oil-gas separator according to an embodiment of the present utility model;
FIG. 4 is a schematic diagram of a general base matched with an active oil-gas separator according to an embodiment of the present utility model;
FIG. 5 is a cross-sectional view of a universal base for use with an active gas-oil separator in accordance with an embodiment of the present utility model;
FIG. 6 is a schematic diagram of the universal base and centrifuge rotor filter mating provided by an embodiment of the present utility model;
FIG. 7 is a schematic view of a universal base station for use with a centrifugal rotor filter in accordance with an embodiment of the present utility model;
In the figure: 1. active oil-gas separator; 11. a base A; 112. an oil inlet; 2. centrifugal rotor filtering; 21. a B-type base; 212. a B-type oil inlet; 3. a universal base; 31. a separation section; 311. a first connection hole; 32. a base body; 321. an oil return cavity; 322. an oil return hole; 323. a receiving chamber; 324. a shaft hole seat; 325. a connecting shaft; 326. the second oil inlet duct; 33. a body section; 331. a first trench; 332. a second connection hole; 333. oil inlet level; 334. a second trench; 34. a nozzle; 341. a first oil inlet duct;
the mutual spacing or dimensions are exaggerated for the purpose of showing the positions of the various parts, and the schematic illustrations are used for illustration only.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the utility model. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. Furthermore, it will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, steps, operations, devices, components, and/or groups thereof.
However, as mentioned in the background art, the engine oil-driven separating device is divided into a plurality of types of active oil-gas separator 1, centrifugal rotor filter 2 and the like, and as shown in fig. 1, the active oil-gas separator 1 and the A-type base 11 are matched with each other in the prior art, an A-type oil inlet 112 is arranged at the right upper corner of an oil return cavity 321, engine oil in an engine is transversely sprayed onto an impeller of the active oil-gas separator 1 through the A-type oil inlet 112, and the impeller is driven to operate, so that oil-gas separation is realized. As shown in fig. 2, a conventional centrifugal rotor filter 2 and a B-type base 21 are schematically combined, a B-type oil inlet 212 is provided in the middle of the right side of an oil return cavity 321, engine oil in an engine is transversely sprayed onto a mounting seat of the centrifugal rotor filter 2 through the B-type oil inlet 212, and then enters a central shaft and a rotor gap along an oil hole on the central shaft, and enters a rotor. Therefore, the base matched with different separator devices has various structural forms, and is not beneficial to material management and mold development.
In order to solve the technical problems, the utility model provides the universal base 3 for the engine oil driven separation device by analyzing the working principles and the structural differences of different oil driven separation devices and utilizing the relative position relation between the oil-gas separator impeller and the nozzle 34 and the characteristic of axial oil inlet of the center of the centrifugal rotor filter 2, wherein the oil return pressure and the mode are the same, and the utility model provides the universal base 3 for the engine oil driven separation device.
As shown in fig. 2 to 7, in one embodiment of the present utility model, there is provided a universal base unit 3 for an oil-driven separation device for mounting the oil-driven separation device to an engine, comprising: the universal base 3 includes a base body 32, a body portion 33, and a separation portion 31, as shown in fig. 4, the separation portion 31 is provided on an upper side of the base body 32 for mounting the oil-driven separation device, and the body portion 33 is provided on a right side of the base body 32 for mounting the universal base 3 to the engine. It will be appreciated that the words "upper", "right", etc. appearing in the present embodiments merely denote a correspondence with the upper, right, etc. directions of the drawings themselves, and are not meant to be limiting in structure, but merely to facilitate description of the utility model and simplify the description, rather than to indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore are not to be construed as limiting the utility model.
An oil return cavity 321 is arranged on one side of the base body 32 facing the machine body 33, and the oil return cavity 321 is communicated with the engine and used for returning separated engine oil to the engine. The base body 32 is provided with the holding chamber 323 towards the one side of separating part 31, and holding chamber 323 is used for holding engine oil drive separator's downside structure, be provided with shaft hole seat 324 in the holding chamber 323, have rotor filter center pin mounting hole in the shaft hole seat 324. The shaft hole seat 324 is lower than the impeller of the oil-gas separator by a certain safety distance.
The base body 32 is provided with an oil return hole 322, as shown in fig. 4, the oil return hole 322 is communicated with the oil return cavity 321, and when the active oil-gas separator 1 is installed on the universal base 3, as shown in fig. 3, the engine oil separated by the active oil-gas separator 1 enters the oil return cavity 321 through the oil return hole 322 and then flows back to the engine. When the centrifugal rotor filter 2 is mounted on the universal base unit 3, the oil return hole 322 is in a closed state.
The engine body 33 is provided with an oil inlet level 333, the cross section of the oil return cavity 321 is rectangular, the oil inlet level 333 is arranged at one corner of the oil return cavity 321, as shown in fig. 4, the oil inlet level 333 is arranged at the upper right corner of the oil return cavity 321, the oil inlet level 333 unifies the a-type oil inlet 112 of the a-type base 11 and the B-type oil inlet 212 of the B-type base 21, a connecting shaft 325 is arranged on the base body 32, one end of the connecting shaft 325 is connected with the shaft hole seat 324, the other end of the connecting shaft 325 is connected with the oil inlet level 333, and the second oil inlet channel 326 is formed when the connecting shaft 325 is used for installing the centrifugal rotor filter 2. That is, the oil inlet 333 may be provided with a first oil inlet channel 341 communicating with the accommodating cavity 323 or a second oil inlet channel 326 communicating with the shaft hole seat 324.
As shown in fig. 3, when the oil-driven separation device is an active oil separator 1, a nozzle 34 is disposed at the oil inlet 333. As shown in fig. 5, the nozzle 34 is a tubular joint, the nozzle 34 is provided with the first oil inlet channel 341, the outer end of the first oil inlet channel 341 is communicated with the engine at the oil inlet position 333, one end of the first oil inlet channel 341 faces to the impeller of the active oil-gas separator 1 in the accommodating cavity 323, and the injected engine oil drives the impeller to rotate, so as to realize oil-gas separation. One end of the oil return hole 322 is communicated with the active separator, the other end of the oil return hole is communicated with the oil return cavity 321 of the universal base 3, and separated engine oil flows back to the engine through the oil return hole 322 and the oil return cavity 321 after coming out of the active separator.
As shown in fig. 6 and 7, when the oil-driven separation device is a centrifugal rotor filter 2, the second oil inlet channel 326 is formed in the connecting shaft 325, the outer end of the second oil inlet channel 326 is connected to the engine at the oil inlet 333, the inner end of the second oil inlet channel is connected to the shaft hole seat 324, and the engine oil in the engine enters the shaft hole seat 324 through the second oil inlet channel 326, then enters the central shaft and the rotor gap along the oil hole on the central shaft, and enters the rotor. After exiting from the nozzle of the centrifugal rotor filter 2, the separated engine oil flows back to the engine through the accommodating cavity 323 and the oil return cavity 321 in sequence, and the oil return hole 322 is in a closed state.
As shown in fig. 4, the separation portion 31 is provided with a first connection hole 311, the universal base 3 is detachably connected with the engine oil driving separation device through the first connection hole 311, and the interfaces of the universal base 3, the active oil-gas separator 1 and the rotor filter cover are kept completely consistent, and the sealing mode is universal. The body 33 is provided with a second connecting hole 332, the universal base 3 is detachably connected with the engine through the second connecting hole 332, and the mounting interface of the base and the body is kept completely consistent, so that the sealing mode is universal.
As shown in fig. 4, a first groove 331 is formed in an end surface of the body 33, which contacts the engine, and the first groove 331 is disposed on the outer periphery of the oil return cavity 321, and a seal ring is installed in the first groove 331 to seal the oil return cavity 321, so as to prevent the oil from leaking. Further, a second groove 334 is further provided on the end surface of the body 33, which contacts with the engine, and the second groove 334 is disposed on the outer periphery of the oil inlet 333, and a sealing ring is installed in the second groove 334 to seal the oil inlet, so as to prevent leakage during oil inlet. And the first groove 331 and the second groove 334 are communicated, so that two sealing rings can be designed into a whole, the number of parts is reduced, the assembly efficiency is improved, and the management cost is reduced.
The base body 32, the body 33 and the separating portion 31 are integrally formed by casting, the connecting shaft 325 is directly cast and formed, the oil inlet 333 is closed, and holes are drilled according to different separating devices at a later stage.
The specific working process of the universal base 3 is as follows:
For an oil-gas separator assembly: the oil return hole 322 is processed, the nozzle 34 is pressed (at the moment, attention should be paid to avoiding the rotor arrangement space), engine oil is sprayed to the accommodating cavity 323 through the nozzle 34, the engine oil is sprayed to drive the impeller to run at high speed, the split engine oil flows back to the oil pan of the engine from the oil-gas separator through the oil return hole 322 and the oil return cavity 321 at normal pressure, and at the moment, the second oil inlet channel 326 is not communicated.
For a centrifugal rotor filter 2 assembly: a second oil inlet passage 326 is formed in the connecting shaft 325, and engine oil enters the rotor filter center shaft mounting hole along the second oil inlet passage 326, then enters the center shaft and the rotor gap along the oil hole on the center shaft, and enters the rotor. When the engine is driven by the reverse tangential nozzle to run at a high speed, engine oil flows back to the oil pan of the engine at normal pressure through the accommodating cavity 323 and the oil return cavity 321, and at the moment, the oil inlet and return holes 322 are kept in a non-communication state.
According to the utility model, on the basis of analyzing the working principles and structural differences of different engine oil drive separation devices, the relative position relation between the impeller and the nozzle 34 of the active oil-gas separator 1 and the characteristic of axial oil inlet of the center of the centrifugal rotor filter 2 are utilized, and the oil return modes are the same, so that the difference is solved. The method comprises the steps that the A-type oil inlet 112 of the existing A-type base 11 and the B-type oil inlet 212 of the B-type base 21 are unified, a connecting shaft 325 is arranged on a base body 32, one end of the connecting shaft 325 is connected with a shaft hole seat 324, the other end of the connecting shaft is connected with an oil inlet position 333, when the universal base 3 is installed with the active oil-gas separator 1, a first oil inlet channel 341 communicated with a containing cavity 323 is processed at the oil inlet position 333, and oil return is carried out in an oil return hole 322; when the universal base 3 is installed with the centrifugal rotor filter 2, the second oil inlet channel 326 communicated with the shaft hole seat 324 is processed at the oil inlet position 333, so that the supporting installation of different separating devices is realized, the separating effect is ensured, the material management and operation cost of the machine body, the sealing ring, the oil-gas separation and the centrifugal rotor filter 2 are reduced, the structure is simple, the redundant design is avoided, and the popularization is easy.
Based on the above-mentioned general base 3, the embodiment of the present utility model also provides a separation device assembly, which comprises an active oil-gas separator 1 and the general base 3, or comprises a centrifugal rotor filter 2 and the general base 3. The general base 3 according to the above embodiment is disposed in the separation device assembly, and the technical effects of the separation device assembly using the general base 3 are referred to the above embodiment because the general base 3 has the technical effects described above.
While the foregoing description of the embodiments of the present utility model has been presented in conjunction with the drawings, it should be understood that it is not intended to limit the scope of the utility model, but rather, it is intended to cover all modifications or variations within the scope of the utility model as defined by the claims of the present utility model.
Claims (10)
1. A universal base for an oil-driven separator device for mounting the oil-driven separator device to an engine, comprising: a base body, a body part and a separating part;
An oil return cavity is formed in one side, facing the machine body, of the base body, an accommodating cavity is formed in one side, facing the separation part, of the base body, and a shaft hole seat is arranged in the accommodating cavity;
The oil return device comprises a base body, and is characterized in that an oil return hole is formed in the base body and is communicated with the oil return cavity, an oil inlet level is formed in the machine body, a first oil inlet passage communicated with the accommodating cavity or a second oil inlet passage communicated with the shaft hole seat is formed in the oil inlet level, a connecting shaft is arranged on the base body, and the connecting shaft is used for providing the second oil inlet passage.
2. The universal base for an oil driven separator of claim 1 wherein said oil driven separator comprises an active oil separator and a centrifugal rotor filter.
3. The universal base for an oil-driven separator of claim 2, wherein when the oil-driven separator is an active oil-gas separator, one end of the oil return hole is communicated with the active oil-gas separator, and the other end is communicated with an oil return cavity of the universal base; the oil inlet position is provided with a nozzle, the nozzle is internally provided with the first oil inlet channel, one end of the nozzle is communicated with the engine at the oil inlet position, and the other end of the nozzle faces towards the impeller of the active oil-gas separator in the accommodating cavity.
4. The universal base for an oil driven separator of claim 2 wherein when said oil driven separator is a centrifugal rotor filter, said second oil inlet passage is disposed in said connecting shaft, one end of said second oil inlet passage being in communication with the engine at the oil inlet location and the other end being in communication with the shaft bore.
5. The universal base for an oil-driven separation device according to claim 1, wherein a first connection hole is provided on the separation portion, and the universal base is detachably connected with the oil-driven separation device through the first connection hole.
6. The universal base for an engine oil driven separation apparatus according to claim 1, wherein a second connection hole is provided on the body portion, and the universal base is detachably connected to the engine through the second connection hole.
7. The universal base for an oil-driven separation device according to claim 6, wherein a first groove is provided on an end face of the body portion that contacts the engine, the first groove being arranged at an outer periphery of the oil return chamber.
8. The universal base for an engine oil driven separation device according to claim 7, wherein a second groove is provided on an end face of said body portion that contacts said engine, said second groove being disposed at an outer periphery of said oil intake level, and the first groove and the second groove being communicated.
9. The universal base for an oil driven separation device according to claim 1, wherein the base body, the body portion, and the separation portion are integrally formed by casting.
10. A separator assembly comprising an active oil separator and a universal base for an oil driven separator as claimed in any one of claims 1 to 9, or a centrifugal rotor filter and a universal base for an oil driven separator as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708826.0U CN220979598U (en) | 2023-10-09 | 2023-10-09 | Universal base for engine oil driven separating device and separating device assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322708826.0U CN220979598U (en) | 2023-10-09 | 2023-10-09 | Universal base for engine oil driven separating device and separating device assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220979598U true CN220979598U (en) | 2024-05-17 |
Family
ID=91058607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322708826.0U Active CN220979598U (en) | 2023-10-09 | 2023-10-09 | Universal base for engine oil driven separating device and separating device assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220979598U (en) |
-
2023
- 2023-10-09 CN CN202322708826.0U patent/CN220979598U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114483801B (en) | Common-cavity type aero-engine bearing seat and aero-engine with same | |
| CN220979598U (en) | Universal base for engine oil driven separating device and separating device assembly | |
| CN210509604U (en) | High-pressure relief detachable multi-stage centrifugal submersible pump | |
| CN215719529U (en) | Guide vane fixed two-stage supercharging centrifugal pump | |
| CN102434225B (en) | Sealing structure of booster impeller shaft | |
| CN111022152A (en) | Centrifugal oil-gas separation device | |
| CN115076107B (en) | Cantilever vertical screw vacuum pump | |
| CN113279988B (en) | Novel gas compressor | |
| CN211950629U (en) | Oil-gas separator | |
| CN203370490U (en) | Pulp dispersing device | |
| CN207212612U (en) | A kind of compressor electric motor | |
| CN221568996U (en) | Automobile water pump with machine seal convenient to detach | |
| CN102878412B (en) | A kind of device of lubricating sealing centrifuge bearing pedestal and using method thereof | |
| CN210279335U (en) | Bearing seat cooling device | |
| CN113464443B (en) | Guide vane fixed two-stage booster centrifugal pump | |
| CN215256392U (en) | Oil-gas separator of engine | |
| CN218031352U (en) | Transmission oil pump | |
| CN214146008U (en) | Centrifugal pressure end oil leakage prevention supercharger | |
| CN2314129Y (en) | Multifunctional pipeline pump with high coaxality | |
| CN211900737U (en) | Centrifugal oil-gas separation device and engine | |
| CN220622273U (en) | Self-circulation type automobile water pump water seal cooling equipment | |
| CN218645240U (en) | Main shaft rotating mechanical sealing device of inertia friction welding machine | |
| CN220319915U (en) | Split diffuser with built-in cooling water channel | |
| CN2385117Y (en) | Sealing device of rotating main axle for axial-flow pump | |
| CN117231561A (en) | Centrifugal compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |