CN215763212U - Lubricating oil filter for gas turbine - Google Patents
Lubricating oil filter for gas turbine Download PDFInfo
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- CN215763212U CN215763212U CN202122262094.8U CN202122262094U CN215763212U CN 215763212 U CN215763212 U CN 215763212U CN 202122262094 U CN202122262094 U CN 202122262094U CN 215763212 U CN215763212 U CN 215763212U
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Abstract
The utility model provides a lubricating oil filter for a gas turbine, which comprises a lubricating oil outlet pipeline for guiding lubricating oil to flow out of the lubricating oil filter, a lubricating oil inlet pipeline for guiding the lubricating oil to enter the lubricating oil filter, a filter screen for filtering the lubricating oil flowing through the lubricating oil filter, and an outer shell for bearing the filter screen, wherein the filter screen is arranged between the lubricating oil inlet pipeline and the lubricating oil outlet pipeline, the filter screen is attached with scraps obtained by filtering the lubricating oil, and the lubricating oil filter also comprises a detection device for detecting the scraps attached to the filter screen. By applying the technical scheme of the utility model, when the chips flow through the filter, the chips are accumulated on the filter screen and change of current and/or voltage in the coil is caused, so that the amount of chips contained in the oil flow pipeline can be quantitatively identified.
Description
Technical Field
The utility model relates to a lubricating oil filter for a gas turbine, in particular to a lubricating oil filter for a gas turbine, which can quantitatively detect metal scraps.
Background
In the operation process of the gas turbine, in order to ensure the normal operation of a rotor and a bearing of the gas turbine and avoid abrasion, a lubricating oil filter is usually arranged in a lubricating oil system of the gas turbine, and the operation of rotating parts of the lubricating oil system such as the bearing, a gear and the like of the gas turbine is monitored in real time whether to be normal or not by adsorbing metal chips and intercepting large nonmagnetic metal chips.
The existing lubricating oil filters are various, most of the existing lubricating oil filters only have a single filtering function, the blocking condition of the lubricating oil filter is reflected through the pressure difference between the front and the rear of the filter, for example, in the european patent EP121370B1, the amount of metal chips filtered in the oil filter cannot be accurately detected on line in real time, and abnormal abrasion of a mechanical device cannot be found as early as possible.
The prior art also includes a chip detector for a lubricating oil pipeline, and a magnetoelectric lubricating oil metal chip on-line monitoring sensor developed aiming at the characteristic that worn metal chips have ferromagnetism is a common lubricating oil pipeline chip detector, for example, chinese patent CN105241949 b discloses a detection circuit of a lubricating oil metal chip on-line monitor, which works on the principle that magnetic force or magnetic flux related to the number of chips in a detection area is changed and calibrated to detect the number of chips by using the disturbance generated by metal chips when oil flows through a to-be-detected area of the sensor having a magnetic field. However, this kind of detector is only used for detecting the chips in the lubricating oil pipeline, not for detecting the chips attached on the lubricating oil filter, and the chips flow through the coil, and the quantitative statistics of the chips is realized through complicated circuit design, demodulation and calculation.
SUMMERY OF THE UTILITY MODEL
The main object of the present invention is to provide a solution to the problems of the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a lubricant filter for a gas turbine, including a lubricant outlet pipe for guiding lubricant to flow out of the lubricant filter, a lubricant inlet pipe for guiding lubricant to flow into the lubricant filter, a strainer for filtering the lubricant flowing through the lubricant filter, and an outer case for carrying the strainer, the strainer being disposed between the lubricant inlet pipe and the lubricant outlet pipe, characterized in that chips obtained by filtering the lubricant are attached to the strainer, and the lubricant filter further includes a detection device for detecting the chips attached to the strainer.
Further, the detection device comprises an induction coil, and the debris attached to the filter screen affects the impedance of the induction coil.
Further, the detection device further comprises a power supply for supplying power to the induction coil and an indicating device for indicating the current and/or voltage of the induction coil, wherein the power supply and the indicating device are both connected to the induction coil.
Further, the detection device comprises an alarm device which sends out an alarm signal when the current and/or voltage change in the induction coil exceeds a fault threshold.
Further, the detection device and the filter screen are arranged at intervals.
Further, the induction coil is located radially outside the filter screen and is arranged at an interval with the filter screen.
Further, the lubricating oil filter further comprises an insulating shell, the induction coil is wound on the insulating shell, and the insulating shell is fixed on the outer shell.
Further, the insulating housing is cylindrical.
Further, the lubricating oil filter still includes the induction coil shell body, the induction coil shell body is cylindricly and is located induction coil's radial outside, the induction coil shell body is fixed in insulating housing.
Further, the filter screen is a non-metal filter screen.
Further, the filter screen includes skeleton, intranet and outer net, skeleton, intranet and outer net are made by non-metallic material, intranet and outer net all have the filtration through-hole.
Further, the filter screen is the multilayer filter screen, every layer of multilayer filter screen all includes skeleton, intranet and outer net.
Furthermore, the number of the layers of the multilayer filter screen is 2-5.
Further, the filter screen is a folding filter screen.
Furthermore, the aperture of the filtering through holes of the inner net is larger than that of the filtering through holes of the outer net.
Further, the lubricating oil filter is characterized by further comprising a check valve.
Further, the lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
Further, the chips are metal chips.
By applying the technical scheme of the utility model, the following beneficial effects are achieved:
1. an insulating filter screen is arranged in the lubricating oil pipeline, when metal chips flow through the insulating filter screen, the metal chips can be accumulated on the filter screen, in a detection circuit, an induction coil is an inductive reactance element, the amount of the metal chips on the filter screen can directly influence the inductive reactance value of the induction coil, the change of the inductive reactance value of the induction coil can be directly reflected in the detection circuit, and the change of current and/or voltage in the coil is caused, so that the amount of the metal chips contained in the lubricating oil pipeline can be quantitatively identified;
2. the system can monitor whether the transmission parts of the lubricating oil systems such as the bearing, the gear and the like normally operate in real time; alarming at the initial stage of faults of bearings, gears and the like, avoiding fault expansion, and reducing the occurrence of major faults which can cause sudden shutdown due to overlarge vibration, shaft seizure and the like;
3. compared with the traditional detection method, the utility model does not need a complex detection circuit and a data processing module;
4. the device is easy to maintain and clean and convenient to use through the optimized structural design.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 shows a schematic view of an oil filter according to embodiment 1 of the present invention, an
FIG. 2 is a perspective view showing a strainer of an oil filter according to embodiment 1 of the present invention, an
Fig. 3 shows a cross-sectional view of a strainer of an oil filter according to embodiment 1 of the present invention.
Wherein the figures include the following reference numerals:
1. the lubricating oil inlet pipeline comprises a lubricating oil outlet pipeline 2, a one-way valve 3, an outer shell 4, an insulating shell 5, an induction coil 6, an induction coil outer shell 7, a lubricating oil inlet pipeline 8, a filter screen 9, a framework 10, an inner net 11 and an outer net.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
The present invention is described in further detail below with reference to specific examples, which are not to be construed as limiting the scope of the utility model as claimed.
Example 1
The utility model provides a lubricating oil filter for gas turbine, includes filter screen 8, shell body 3, lubricating oil inlet pipeline 7 and lubricating oil outlet pipeline 1, the lubricating oil by lubricating oil inlet pipeline 7 gets into the lubricating oil filter and by lubricating oil outlet pipeline 1 flows out the lubricating oil filter, filter screen 8 sets up lubricating oil inlet pipeline 7 with between the lubricating oil outlet pipeline 1 and filter the flow through the lubricating oil filter lubricating oil, shell body 3 passes through the bolt fastening filter screen 8, the lubricating oil filter still include with the detection device that the filter screen is correlated with.
The detection device comprises an induction coil 5, a power supply and an indicating device (not shown in the figure), wherein the power supply and the indicating device are both connected to the induction coil 5, the power supply supplies power to the induction coil 5, and the indicating device indicates the current in the induction coil. The detection device and the filter screen 8 are arranged at intervals.
The filter screen 8 is attached with scraps obtained by filtering lubricating oil, the detection device detects the scraps attached to the filter screen 8, specifically, the detection device quantitatively detects the quantity of the scraps attached to the filter screen 8, and a parameter representing the quantity of the scraps is a current in the induction coil 5.
The induction coil 5 is located on the radial outer side of the filter screen 8 and is arranged at an interval with the filter screen 8.
The filter screen includes skeleton 9, intranet 10 and outer net 11, skeleton 9, intranet 10 and outer net 11 are made by non-metallic material, intranet 10 and outer net 11 all have the filtration through-hole.
The aperture of the filtering through holes of the inner net 10 is larger than that of the filtering through holes of the outer net 11.
The lubricating oil filter further comprises an insulating shell 4, the induction coil 5 is wound on the insulating shell 4, and the insulating shell 4 is fixed on the outer shell.
The insulating housing 4 is cylindrical.
The lubricating oil filter further comprises an induction coil outer shell 6, wherein the induction coil outer shell 6 is cylindrical and is located on the radial outer side of the induction coil 5, and the induction coil outer shell 6 is fixed on the insulating shell 4.
The oil filter also comprises a check valve 2.
The lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
The chips are metal chips.
Example 2
The utility model provides a lubricating oil filter for gas turbine, includes filter screen 8, shell body 3, lubricating oil inlet pipeline 7 and lubricating oil outlet pipeline 1, the lubricating oil by lubricating oil inlet pipeline 7 gets into the lubricating oil filter and by lubricating oil outlet pipeline 1 flows out the lubricating oil filter, filter screen 8 sets up lubricating oil inlet pipeline 7 with between the lubricating oil outlet pipeline 1 and filter the flow through the lubricating oil filter lubricating oil, shell body 3 is fixed through the connection structure of recess with the convex key filter screen 8, the lubricating oil filter still include with the detection device that the filter screen is correlated with.
The detection device comprises an induction coil 5, a power supply and an indicating device (not shown in the figure), wherein the power supply and the indicating device are both connected to the induction coil 5, the power supply supplies power to the induction coil 5, and the indicating device indicates the voltage in the induction coil. The detection device and the filter screen 8 are arranged at intervals.
The filter screen 8 is attached with scraps obtained by filtering lubricating oil, the detection device detects the scraps attached to the filter screen 8, specifically, the detection device quantitatively detects the scraps attached to the filter screen 8, and a parameter representing the scraps is a voltage in the induction coil 5.
The induction coil 5 is located on the radial outer side of the filter screen 8 and is arranged at an interval with the filter screen 8.
The filter screen 8 is folding filter screen, and the filter screen is fold or folding form promptly, has strengthened the filter effect through fold or folding structure on the filter screen, folding filter screen includes skeleton 9, intranet 10 and outer net 11, skeleton 9, intranet 10 and outer net 11 are made by non-metallic material, intranet 10 and outer net 11 all have the filtration through-hole.
The aperture of the filtering through holes of the inner net 10 is larger than that of the filtering through holes of the outer net 11.
The lubricating oil filter further comprises an insulating shell 4, the induction coil 5 is wound on the insulating shell 4, and the insulating shell 4 is fixed on the outer shell.
The insulating housing 4 is cylindrical.
The lubricating oil filter further comprises an induction coil outer shell 6, wherein the induction coil outer shell 6 is cylindrical and is located on the radial outer side of the induction coil 5, and the induction coil outer shell 6 is fixed on the insulating shell 4.
The oil filter also comprises a check valve 2.
The lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
The chips are metal chips.
Example 3
The utility model provides a lubricating oil filter for gas turbine, includes filter screen 8, shell body 3, lubricating oil inlet pipeline 7 and lubricating oil outlet pipeline 1, the lubricating oil by lubricating oil inlet pipeline 7 gets into the lubricating oil filter and by lubricating oil outlet pipeline 1 flows out the lubricating oil filter, filter screen 8 sets up lubricating oil inlet pipeline 7 with between the lubricating oil outlet pipeline 1 and filter the flow through the lubricating oil filter lubricating oil, shell body 3 bears through the detachable fixed pin filter screen 8, the lubricating oil filter still include with the detection device that the filter screen is correlated with.
The detection device comprises an induction coil 5, a power supply and an indicating device (not shown in the figure), wherein the power supply and the indicating device are both connected to the induction coil 5, the power supply supplies power to the induction coil 5, and the indicating device indicates the current in the induction coil. The detection device and the filter screen are arranged at intervals.
The filter screen 8 is attached with scraps obtained by filtering lubricating oil, and the detection device detects the scraps attached to the filter screen 8. Further, the detection device quantitatively detects the amount of the chips attached to the filter screen 8, and generates an alarm signal representing the fault of the transmission part of the gas turbine when a parameter representing the amount of the chips meets a preset condition. Further, the detection means comprise alarm means which issue an alarm signal when the current variation in the induction coil 5 exceeds a fault threshold.
The induction coil 5 is located on the radial outer side of the filter screen 8 and is arranged at an interval with the filter screen 8.
The lubricating oil filter further comprises an insulating shell 4, the induction coil 5 is wound on the insulating shell 4, and the insulating shell 4 is fixed on the outer shell.
The insulating housing 4 is cylindrical.
The lubricating oil filter further comprises an induction coil outer shell 6, wherein the induction coil outer shell 6 is cylindrical and is located on the radial outer side of the induction coil 5, and the induction coil outer shell 6 is fixed on the insulating shell 4.
The filter screen 8 is folding filter screen, folding filter screen includes skeleton 9, intranet 10 and outer net 11, skeleton 9, intranet 10 and outer net 11 are made by non-metallic material, intranet 10 and outer net 11 all have the filtration through-hole.
The aperture of the filtering through holes of the inner net 10 is larger than that of the filtering through holes of the outer net 11.
The oil filter also comprises a check valve 2.
The lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
The chips are metal chips.
Example 4
A lubricating oil filter for gas turbine, includes filter screen 8, shell body 3, lubricating oil inlet pipeline 7 and lubricating oil outlet pipeline 1, the lubricating oil by lubricating oil inlet pipeline 7 gets into the lubricating oil filter and by lubricating oil outlet pipeline 1 flows out the lubricating oil filter, filter screen 8 sets up lubricating oil inlet pipeline 7 with between the lubricating oil outlet pipeline 1 and filter the flow through the lubricating oil filter the lubricating oil, shell body 3 uses the bolt and nut fixed filter screen 8, the lubricating oil filter still include with the detection device that the filter screen is correlated with.
The detection device comprises an induction coil 5, a power supply and an indicating device (not shown in the figure), wherein the power supply and the indicating device are both connected to the induction coil 5, the power supply supplies power to the induction coil 5, and the indicating device indicates the voltage in the induction coil. The detection device and the filter screen are arranged at intervals.
The filter screen 8 is attached with scraps obtained by filtering lubricating oil, and the detection device detects the scraps attached to the filter screen 8. Further, the detection device quantitatively detects the amount of the chips attached to the filter screen 8, and generates an alarm signal representing the fault of the transmission part of the gas turbine when a parameter representing the amount of the chips meets a preset condition. Further, the detection device quantitatively detects the amount of the chips attached to the filter screen 8, and the parameter representing the amount of the chips is the voltage in the induction coil 5. The detection means comprise alarm means which emit an alarm signal when the voltage variation in the induction coil 5 exceeds a fault threshold.
The induction coil 5 is located on the radial outer side of the filter screen 8 and is arranged at an interval with the filter screen 8.
The lubricating oil filter further comprises an insulating shell 4, the induction coil 5 is wound on the insulating shell 4, and the insulating shell 4 is fixed on the outer shell.
The insulating housing 4 is cylindrical.
The lubricating oil filter further comprises an induction coil outer shell 6, wherein the induction coil outer shell 6 is cylindrical and is located on the radial outer side of the induction coil 5, and the induction coil outer shell 6 is fixed on the insulating shell 4.
The filter screen 8 is folding filter screen, is the filter screen for fold or folding form promptly, has strengthened the filter effect through fold or folding structure on the filter screen, folding filter screen includes skeleton 9, intranet 10 and outer net 11, skeleton 9, intranet 10 and outer net 11 are made by non-metallic material, intranet 10 and outer net 11 all have the filtration through-hole.
The aperture of the filtering through holes of the inner net 10 is larger than that of the filtering through holes of the outer net 11.
The oil filter also comprises a check valve 2.
The lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
The chips are metal chips.
Example 5
A lubricating oil filter for gas turbine, includes filter screen 8, shell body 3, lubricating oil inlet pipeline 7 and lubricating oil outlet pipeline 1, the lubricating oil by lubricating oil inlet pipeline 7 gets into the lubricating oil filter and by lubricating oil outlet pipeline 1 flows out the lubricating oil filter, filter screen 8 sets up lubricating oil inlet pipeline 7 with between the lubricating oil outlet pipeline 1 and filter the flow through the lubricating oil filter the lubricating oil, shell body 3 uses the bolt and nut fixed filter screen 8, the lubricating oil filter still include with the detection device that the filter screen is correlated with.
The detection device comprises an induction coil 5, a power supply and an indicating device (not shown in the figure), wherein the power supply and the indicating device are both connected to the induction coil 5, the power supply supplies power to the induction coil 5, and the indicating device indicates the current in the induction coil. The detection device and the filter screen are arranged at intervals.
The filter screen 8 is attached with scraps obtained by filtering lubricating oil, and the detection device detects the scraps attached to the filter screen 8. Further, the detection device quantitatively detects the amount of the chips attached to the filter screen 8, and generates an alarm signal representing the fault of the transmission part of the gas turbine when a parameter representing the amount of the chips meets a preset condition. Further, the detecting device quantitatively detects the amount of the chips attached to the filter screen 8, and the parameter representing the amount of the chips is the current in the induction coil 5. The detection means comprise alarm means which emit an alarm signal when the current variation in the induction coil 5 exceeds a fault threshold.
The induction coil 5 is located on the radial outer side of the filter screen 8 and is arranged at an interval with the filter screen 8.
The lubricating oil filter further comprises an insulating shell 4, the induction coil 5 is wound on the insulating shell 4, and the insulating shell 4 is fixed on the outer shell.
The insulating housing 4 is cylindrical.
The lubricating oil filter further comprises an induction coil outer shell 6, wherein the induction coil outer shell 6 is cylindrical and is located on the radial outer side of the induction coil 5, and the induction coil outer shell 6 is fixed on the insulating shell 4.
The filter screen 8 is the multilayer filter screen, every layer of multilayer filter screen all includes skeleton 9, intranet 10 and outer net 11, skeleton 9, intranet 10 and outer net 11 are made by non-metallic material, intranet 10 and outer net 11 all have the filtration through-hole.
Specifically, the number of layers of the multilayer filter screen is 2-5, and in this embodiment, the number of layers of the multilayer filter screen is 3.
The aperture of the filtering through holes of the inner net 10 is larger than that of the filtering through holes of the outer net 11.
The oil filter also comprises a check valve 2.
The lubricating oil filter is used for detecting a gas turbine lubricating oil system, and the gas turbine lubricating oil system is used for lubricating a transmission part of the gas turbine.
The chips are metal chips.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
1. an insulating filter screen is arranged in the lubricating oil pipeline, when metal chips flow through the insulating filter screen, the metal chips can be accumulated on the filter screen, in a detection circuit, an induction coil is an inductive reactance element, the amount of the metal chips on the filter screen can directly influence the inductive reactance value of the induction coil, the change of the inductive reactance value of the induction coil can be directly reflected in the detection circuit, and the change of current and/or voltage in the coil is caused, so that the amount of the metal chips contained in the lubricating oil pipeline can be quantitatively identified;
2. the system can monitor whether the transmission parts of the lubricating oil systems such as the bearing, the gear and the like normally operate in real time; alarming at the initial stage of faults of bearings, gears and the like, avoiding fault expansion, and reducing the occurrence of major faults which can cause sudden shutdown due to overlarge vibration, shaft seizure and the like;
3. compared with the traditional detection method, the utility model does not need a complex detection circuit and a data processing module;
4. the device is easy to maintain and clean and convenient to use through the optimized structural design.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (18)
1. The utility model provides a lubricating oil filter for gas turbine, is including guide lubricating oil outflow lubricating oil outlet pipe way (1), the guide lubricating oil entering of lubricating oil filter lubricating oil inlet pipe way (7), filtration flow through the filter screen (8) of lubricating oil filter and bear shell body (3) of filter screen (8), filter screen (8) set up lubricating oil inlet pipe way (7) with between lubricating oil outlet pipe way (1), its characterized in that, be attached to on filter screen (8) and filter the gained bits end of lubricating oil, lubricating oil filter still including the detection filter screen (8) are gone up adnexed the detection device of bits end.
2. The oil filter according to claim 1, characterized in that said detection means comprise an induction coil (5), said debris adhering to said sieve (8) affecting the impedance of said induction coil (5).
3. The oil filter according to claim 2, characterized in that said detection means further comprise a power supply for powering said induction coil (5) and indication means for indicating the current and/or voltage of said induction coil (5), both connected to said induction coil (5).
4. -oil filter according to claim 3, characterised in that said detection means comprise alarm means which emit an alarm signal when the current and/or voltage variations in said induction coil (5) exceed a fault threshold.
5. -oil filter according to claim 1, characterised in that said detection means are arranged at a distance from said sieve (8).
6. -oil filter according to claim 3, characterised in that said induction coil (5) is located radially outside said sieve (8) and is spaced from said sieve (8).
7. The oil filter according to claim 6, further comprising an insulating housing (4), wherein the induction coil (5) is wound around the insulating housing (4), the insulating housing (4) being fixed to the outer housing (3).
8. The oil filter of claim 7, wherein the insulating housing (4) is cylindrical.
9. The oil filter of claim 8, further comprising an induction coil outer housing (6), the induction coil outer housing (6) being cylindrical and located radially outside the induction coil (5), the induction coil outer housing (6) being fixed to the insulation housing (4).
10. -oil filter according to any one of claims 1 to 9, characterised in that said sieve (8) is a non-metallic sieve.
11. The lubricating oil filter according to claim 10, characterised in that the sieve (8) comprises a skeleton (9), an inner mesh (10) and an outer mesh (11), the skeleton (9), the inner mesh (10) and the outer mesh (11) being made of non-metallic material, the inner mesh (10) and the outer mesh (11) each having filtering through holes.
12. The oil filter according to claim 11, characterized in that said screen (8) is a multilayer screen, each layer of which comprises a skeleton (9), an inner mesh (10) and an outer mesh (11).
13. The lubricant filter of claim 12, wherein the number of layers of the multi-layer screen is 2-5.
14. The oil filter of claim 12, wherein the strainer (8) is a pleated strainer.
15. The lubricating oil filter according to any of claims 11-14, characterized in that the inner mesh (10) has a larger filtration pore size than the outer mesh (11).
16. The oil filter according to any of claims 1-9, further comprising a check valve (2).
17. The oil filter of any one of claims 1 to 9, wherein the oil filter is used to test a gas turbine oil system used to lubricate a drive of the gas turbine.
18. The oil filter of any one of claims 1-9, wherein the chips are metal chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122262094.8U CN215763212U (en) | 2021-09-17 | 2021-09-17 | Lubricating oil filter for gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122262094.8U CN215763212U (en) | 2021-09-17 | 2021-09-17 | Lubricating oil filter for gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215763212U true CN215763212U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202122262094.8U Active CN215763212U (en) | 2021-09-17 | 2021-09-17 | Lubricating oil filter for gas turbine |
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|---|---|
| CN (1) | CN215763212U (en) |
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2021
- 2021-09-17 CN CN202122262094.8U patent/CN215763212U/en active Active
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