CN204610290U - Fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof - Google Patents
Fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof Download PDFInfo
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- CN204610290U CN204610290U CN201520104393.0U CN201520104393U CN204610290U CN 204610290 U CN204610290 U CN 204610290U CN 201520104393 U CN201520104393 U CN 201520104393U CN 204610290 U CN204610290 U CN 204610290U
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- oil duct
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Abstract
The utility model relates to helical-lobe compressor technical field, disclose a kind of fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof, comprise the cooler and temperature controlled valve core with the first filler opening and the first oil outlet, oil strainer and oily filter thermostat valve assembly, the valve body of oil duct is established in oil filter thermostat valve assembly comprises, valve body is provided with the second filler opening being communicated with oil duct, second oil outlet, lubricating oil inlet and lubricating oil outlet, second oil outlet is communicated with the first filler opening, second filler opening is communicated with the first oil outlet, temperature controlled valve core stretches in oil duct through valve body, oil strainer is located at body base and is communicated with oil duct.The utility model arranges oily filter thermostat valve assembly between cooler and oil strainer, instead of the combination of thermostat valve valve body and oil strainer seat, decrease the tie point between part and odd parts, decrease oil circuit leakage point, effectively improve the reliability and stability of oil circuit, complete machine structure is simple, connection and reasonable arrangement, and reduces cost.
Description
Technical field
The utility model relates to helical-lobe compressor technical field, particularly relates to a kind of fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof.
Background technique
The oil-way system of existing fuel injection helical lobe compressor is made up of parts such as thermostat valve valve body, temperature controlled valve core, oil strainer, oil strainer seat, oil pipes, wherein, be connected by joint between thermostat valve valve body with oil strainer seat, coupled together by oil pipe between thermostat valve valve body and cooler.So, because number of spare parts is many, so just easily produce leakage point and cause oil leak; In addition, import and export due to thermostat valve valve body and all need to import and export with cooler to be connected, therefore need at least two oil pipes and joint to connect, not only make complex structure, but also add cost.
Model utility content
The purpose of this utility model is to provide a kind of fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof, be intended to solve in prior art, be connected with oil pipe by joint between the thermostat valve valve body in existing fuel injection helical lobe compressor oil-way system, oil strainer seat and cooler and cause complex structure, cost to increase and the problem of easy oil leakage.
The utility model provides a kind of fuel injection helical lobe compressor oil circuit cold filtration assembly, this fuel injection helical lobe compressor oil circuit cold filtration assembly comprises: cooler, for cooling the lubricant oil in the oil-way system of described fuel injection helical lobe compressor, described cooler has the first filler opening and the first oil outlet that are arranged side by side, oil filter thermostat valve assembly, comprise valve body, described valve body offers towards the side of described cooler and is close to and is communicated with the second oil outlet of described first filler opening, and be close to and be communicated with the second filler opening of described first oil outlet, and have in described valve body be communicated with described second oil outlet and described second filler opening with the oil duct circulated for described lubricant oil, described valve body also offers the lubricating oil inlet for inputting described lubricant oil and the lubricating oil outlet for being communicated with described fuel injection helical lobe compressor, described lubricating oil inlet is communicated with described oil duct respectively with described lubricating oil outlet, temperature controlled valve core, is inserted on described valve body, and stretches in described oil duct, and described temperature controlled valve core is for controlling the break-make of described oil duct local, oil strainer, is arranged at described body base, and is communicated with described oil duct, and described oil strainer is for filtering described lubricant oil.
Further, described oil duct comprises the first oil duct of sequential communication, the second oil duct, the 3rd oil duct and the 4th oil duct; Described lubricating oil inlet is communicated with described first oil duct, described second oil outlet is communicated with described second oil duct, and described temperature controlled valve core to be inserted in described second oil duct and the break-make controlled between described first oil duct and described second oil outlet, described second filler opening is communicated with described 3rd oil duct, and described lubricating oil outlet is communicated with described 4th oil duct; Described oil duct also comprises the 5th oil duct, and described oil strainer is communicated with described 5th oil duct, and described 5th oil duct is communicated with described 4th oil duct with described first oil duct respectively.
Further, described valve body offers the spool mount inlet being communicated with described second oil duct, described spool mount inlet is in order to install described temperature controlled valve core.
Further, described valve body is extended with the oil filter joint being communicated with described 5th oil duct, described oil strainer and described oil are filtered joint and are connected and are formed and be communicated with.
Preferably, described oily filter thermostat valve assembly is fastenedly connected by multiple fastening piece and described cooler.
Further, described valve body offers the mounting hole worn for described fastening piece, described fastening piece one end is passed described valve body and is stretched in described cooler to be formed and fixes, and the described fastening piece the other end is resisted against on the outer wall of described valve body.
Preferably, described fastening piece is the bolt with nut, and described nut is resisted against on described valve outer wall.
Further, between described first filler opening and described second oil outlet, all pad between described first oil outlet and described second filler opening and be provided with O type circle.
Further, described valve body is inserted with oil filter pressure differential indicator, and one end of described oil filter pressure differential indicator is stretched in described oil duct, described oil filter pressure differential indicator is used to indicate the pressure reduction of lubricant oil in described oil duct.
Based on technique scheme, the utility model embodiment arranges oily filter thermostat valve assembly between cooler and oil strainer, instead of the combination of thermostat valve valve body and oil strainer seat, decrease the tie point between part and odd parts, decrease oil circuit leakage point, effectively improve the reliability and stability of oil circuit, complete machine structure be simple, connection and reasonable arrangement, and reduce cost.
Accompanying drawing explanation
Fig. 1 is fuel injection helical lobe compressor oil circuit cold filtration assembly exploded perspective view one in the utility model embodiment;
Fig. 2 is fuel injection helical lobe compressor oil circuit cold filtration assembly exploded perspective view two in the utility model embodiment;
Fig. 3 is the perspective view one of oily filter thermostat valve assembly in the utility model embodiment;
Fig. 4 is the perspective view two of oily filter thermostat valve assembly in the utility model embodiment;
Fig. 5 is the generalized section one of valve body in the utility model embodiment;
Fig. 6 is the generalized section two of valve body in the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
Below in conjunction with specific embodiment, realization of the present utility model is described in detail.
As shown in Figures 1 to 6, the utility model embodiment proposes a kind of fuel injection helical lobe compressor oil circuit cold filtration assembly, and this fuel injection helical lobe compressor oil circuit cold filtration assembly comprises cooler 1, oily filter thermostat valve assembly 2, temperature controlled valve core 3 and oil strainer 4.Particularly, for cooler 1, it is for cooling the lubricant oil in the oil-way system of fuel injection helical lobe compressor, the side of this cooler 1 is protruding boss 10, herein, by arranging boss 10, cooler 1 directly can be reclined with oily filter thermostat valve assembly 2, so avoid cooler 1 shape to being directly fixedly connected with the adverse effect caused, further, this boss 10 have the first filler opening 11 and the first oil outlet 12 being communicated with cooler 1 inside, first filler opening 11 and the first oil outlet 12 side by side and interval arrange, be convenient to like this be connected with oily filter thermostat valve assembly 2 and be communicated with, for oily filter thermostat valve assembly 2, it is fixedly connected with cooler 1, this oily filter thermostat valve assembly 2 comprises valve body 21, this valve body 21 is preferably rectangular-shaped, the oil duct 20 with circulating for lubricant oil is provided with in it, this valve body 21 also offers the second oil outlet 211 be communicated with respectively with oil duct 20, second filler opening 212, lubricating oil outlet 213 and lubricating oil inlet 214, wherein, second oil outlet 211 and the second filler opening 212 are all positioned at the side towards the boss 10 of cooler 1 on valve body 21, and this second oil outlet 211 just to and be close to connection first filler opening 11, second filler opening 212 is just being close to the first oil outlet 12 and with it and is being communicated with, lubricating oil outlet 213 is positioned at the side of the second oil outlet 211 on valve body 21 and the second side, filler opening 212 place, and lubricating oil inlet 214 is positioned at the offside of side, lubricating oil outlet 213 place on this valve body 21, herein, lubricating oil inlet 214 is for inputting lubricant oil, lubricating oil outlet 213 is communicated with compressor host, this lubricating oil outlet 213 enters in the main frame of fuel injection helical lobe compressor in order to export for the lubricant oil after cold filtration, for temperature controlled valve core 3, it is plugged in the side, place, lubricating oil inlet 214 on valve body 21, and one end of this temperature controlled valve core 3 is stretched in oil duct 20 through after valve body 21 outer wall, and herein, this temperature controlled valve core 3 is for controlling the break-make of oil duct 20 local, for oil strainer 4, it is arranged on the bottom of valve body 21 and is communicated with oil duct 20, and herein, oil strainer 4 is for filtering the lubricant oil in oil duct 20.
Adopt above-mentioned fuel injection helical lobe compressor oil circuit cold filtration assembly, there is following features:
Based on technique scheme, the utility model embodiment by arranging oily filter thermostat valve assembly 2 between above-mentioned cooler 1 and above-mentioned oil strainer 4, namely directly connect by oily filter thermostat valve assembly 2 and be communicated with cooler 1 and oil strainer 4, so, the combination of common thermostat valve valve body and oil strainer seat is instead of by oily filter thermostat valve assembly 2, thus eliminating single oil strainer seat, reduce multiple joint part, eliminate two oil pipes between thermostat valve valve body and cooler 1 and joint, as mentioned above, by arranging oily filter thermostat valve assembly 2, decrease the tie point between part and unnecessary part, decrease oil circuit leakage point, effectively improve the reliability and stability of oil circuit, simultaneously, this modular construction more simple optimizing, it is more reasonable that complete machine structure is arranged, and greatly reduce production, maintenance and user cost.
In the utility model embodiment, above-mentioned oil duct 20 comprises the first oil duct 201, second oil duct 202 of sequential communication, the 3rd oil duct 203 and the 4th oil duct 204, wherein, above-mentioned lubricating oil inlet 214 is communicated with the first oil duct 201, above-mentioned second oil outlet 211 is communicated with the second oil duct 202, and above-mentioned temperature controlled valve core 3 inserts in this second oil duct 202, this temperature controlled valve core 3 controls the break-make between the first oil duct 201 and the second oil outlet 211, above-mentioned second filler opening 212 is communicated with the 3rd oil duct 203, and above-mentioned lubricating oil outlet 213 is communicated with the 4th oil duct 204; In addition, oil duct 20 also comprises the 5th oil duct 205, and above-mentioned oil strainer 4 is communicated with the 5th oil duct 205, and the 5th oil duct 205 respectively the first oil duct 201, the 3rd oil duct 203 is communicated with the 4th oil duct 204.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, above-mentioned oil duct 20 also can be other compositions.
As mentioned above, oil filter thermostat valve assembly 2 is directly fixed on the boss 10 of cooler 1, lubricant oil enters in the valve body 21 of oily filter thermostat valve assembly 2 from lubricating oil inlet 214, temperature controlled valve core 3 is flow to through the first oil duct 201, time initial, temperature controlled valve core 3 is in closed condition, when the setting temperature of lubricating oil temperature higher than temperature controlled valve core 3, temperature controlled valve core 3 is opened, parts of lubricating oil enters in cooler 1 through the second oil outlet 211 and the first filler opening 11 successively after the second oil duct 202 carries out cool cycles, after cooling, again successively through turning back in oily filter thermostat valve assembly 2 valve body 21 after the first oil outlet 12 and the second filler opening 212, enter in oil strainer 4 through the 3rd oil duct 203 again and filter, after filtration, flow back into compressor host (attached not shown in FIG.) from lubricating oil outlet 213 after the 4th oil duct 204 again, when the setting temperature of lubricating oil temperature lower than temperature controlled valve core 3, temperature controlled valve core 3 is closed, lubricant oil directly enters oil strainer 4 li through the 5th oil duct 205, lubricant oil after filtering, get back in compressor host through the 5th oil duct 205, the 4th oil duct 204 and lubricating oil outlet 213 successively again, so, whole oil circuit completes circulating of oil circuit smoothly under the effect of pressure reduction.
In embodiment of the present utility model, above-mentioned valve body 21 also offers spool mount inlet 215, this spool mount inlet 215 and above-mentioned lubricating oil inlet 214 homonymy, this spool mount inlet 215 is communicated with above-mentioned second oil duct 202, herein, this spool mount inlet 215 is in order to install for above-mentioned temperature controlled valve core 3, particularly, one end of temperature controlled valve core 3 is blocked through stretching into after spool mount inlet 215 in second oil duct 202, meanwhile, the other end of temperature controlled valve core 3 is placed on the outside of spool mount inlet 215.By arranging spool mount inlet 215, make the installation rapid and convenient more between temperature controlled valve core 3 and valve body 21.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, above-mentioned temperature controlled valve core 3 also can be connected with valve body 21 by other means and be communicated with the second oil duct 202, does not limit as one herein.
In embodiment of the present utility model, above-mentioned valve body 21 bottom centre is extended with oil filter joint 216 downward vertically, this oil filter joint 216 is communicated with the 5th oil duct 205 of valve body 21 inside, above-mentioned oil strainer 4 is filtered joint 216 with this oil and is tightly connected, and this oil strainer 4 is communicated with the 5th oil duct 205, so, oil strainer 4 is communicated with the 4th oil duct 204 through the 5th oil duct 205.By arranging oil filter joint 216, making oil strainer 4 more convenient with the installation and removal of valve body 21, being beneficial to the maintenance of oil strainer 4.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, above-mentioned oil strainer 4 also can adopt other modes to be connected with valve body 21 and be communicated with the 5th oil duct 205 in valve body 21, does not limit as one herein.
In embodiment of the present utility model, above-mentioned oily filter thermostat valve assembly 2 is directly fastenedly connected with above-mentioned cooler 1 preferably by multiple fastening piece 5.Particularly, the valve body 21 of oil filter thermostat valve assembly 2 offers multiple mounting hole 217, herein, the corner place of valve body 21 offers the mounting hole 217 that runs through this valve body 21 respectively, this mounting hole 217 wears with for fastening piece 5, particularly, one end of fastening piece 5 is passed mounting hole 217 and is stretched in the boss 10 of cooler 1 and forms a fixed connection, meanwhile, the other end of fastening piece 5 is supported on the outer wall of valve body 21, so, whole valve body 21 has just been held firmly against on cooler 1, that is, oil filter thermostat valve assembly 2 defines with cooler 1 and is fastenedly connected, and, fastening piece 5 of only need dismantling can realize the dismounting between oily filter thermostat valve assembly 2 and cooler 1.So, being fastenedly connected between oily filter thermostat valve assembly 2 and cooler 1 is achieved by the cooperation of fastening piece 5 and mounting hole 217, install, dismantle quick and convenient, improve installation efficiency, and, during installation, oil circuit import and export on valve body 21 are imported and exported with the oil circuit on the boss 10 of cooler 1 and are directly communicated with, and eliminate the links such as oil pipe, have saved material, decrease leakage of oil point, improve the reliability of oil circuit.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, above-mentioned oily filter thermostat valve assembly 2 also can adopt other modes and above-mentioned cooler 1 to be directly fastenedly connected, and does not limit as one herein.
In embodiment of the present utility model, above-mentioned valve body 21 and above-mentioned boss 10 near, herein, O type circle 6 is also provided with between valve body 21 and boss 10, particularly, the first filler opening 11 on boss 10 and pad between the second oil outlet 211 on valve body 21 and be provided with an O type circle 6, meanwhile, the first oil outlet 12 on boss 10 and also pad between the second filler opening 212 on valve body 21 and be provided with an O type circle 6.By arranging two O type circles 6, valve body 21 and boss 10 near while, ensure that the sealing between the first filler opening 11 and the second oil outlet 211, and first sealing between oil outlet 12 and the second filler opening 212, thus efficiently avoid the generation leakage of oil of this joint, improve the stability of oil circuit.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, other modes also can be adopted to carry out encapsulation process between several oil duct import and export, and encapsulation process mode does not limit as one.
In embodiment of the present utility model, above-mentioned fastening piece 5 is preferably rectangular bolt, this bolt comprises screw rod and is arranged on the nut of screw rod tail end, screw rod passes above-mentioned valve body 21 and stretches in fixed hole corresponding on the boss 10 of cooler 1, nut is supported on the outer wall of valve body 21, so just defines fixing.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, above-mentioned fastening piece 5 also can be other forms of fixed block, does not limit as one herein.
In embodiment of the present utility model, above-mentioned valve body 21 is also inserted with oil filter pressure differential indicator 7, this oil filter pressure differential indicator 7 is positioned at the side, nut place on valve body 21, particularly, one end of this oil filter pressure differential indicator 7 is stretched in above-mentioned oil duct 20, and it is used to indicate the pressure reduction of lubricant oil in oil duct 20.By arranging oil filter pressure differential indicator 7, the differential pressure conditions in oil duct 20 can be monitored in real time, being convenient to the discharge pressure controlling and regulate lubricant oil like this, improve the Security of operation.Certainly, according to actual conditions and demand, in other embodiments of the present utility model, also other measures can be adopted monitor and regulate the discharge pressure of lubricant oil.
The utility model embodiment also proposed a kind of fuel injection helical lobe compressor, this fuel injection helical lobe compressor comprises compressor host (attached not shown in FIG.), and above-mentioned fuel injection helical lobe compressor oil circuit cold filtration assembly, herein, this fuel injection helical lobe compressor oil circuit cold filtration assembly coordinates with this compressor host and lubricant oil in order to filter, in Cooling and Lubricator oil-way system, particularly, the lubricating oil outlet 213 on the valve body 21 in this fuel injection helical lobe compressor oil circuit cold filtration assembly is connected with the oil-way system of compressor host and seals and is communicated with.
Based on technique scheme, the utility model embodiment is by arranging fuel injection helical lobe compressor oil circuit cold filtration assembly, make the lubricant oil in compressor host oil-way system can effectively carry out filtering, Cooling and Lubricator, effectively improve the performance of fuel injection helical lobe compressor, decrease leakage of oil point simultaneously, save cost.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (10)
1. fuel injection helical lobe compressor oil circuit cold filtration assembly, is characterized in that, comprising:
Cooler, for cooling the lubricant oil in the oil-way system of described fuel injection helical lobe compressor, described cooler has the first filler opening and the first oil outlet that are arranged side by side;
Oil filter thermostat valve assembly, comprise valve body, described valve body offers towards the side of described cooler and is close to and is communicated with the second oil outlet of described first filler opening, and be close to and be communicated with the second filler opening of described first oil outlet, and have in described valve body be communicated with described second oil outlet and described second filler opening with the oil duct circulated for described lubricant oil, described valve body also offers the lubricating oil inlet for inputting described lubricant oil and the lubricating oil outlet for being communicated with described fuel injection helical lobe compressor, described lubricating oil inlet is communicated with described oil duct respectively with described lubricating oil outlet,
Temperature controlled valve core, is inserted on described valve body, and stretches in described oil duct, and described temperature controlled valve core is for controlling the break-make of described oil duct local;
Oil strainer, is arranged at described body base, and is communicated with described oil duct, and described oil strainer is for filtering described lubricant oil.
2. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 1, is characterized in that, described oil duct comprises the first oil duct of sequential communication, the second oil duct, the 3rd oil duct and the 4th oil duct;
Described lubricating oil inlet is communicated with described first oil duct, described second oil outlet is communicated with described second oil duct, and described temperature controlled valve core to be inserted in described second oil duct and the break-make controlled between described first oil duct and described second oil outlet, described second filler opening is communicated with described 3rd oil duct, and described lubricating oil outlet is communicated with described 4th oil duct;
Described oil duct also comprises the 5th oil duct, and described oil strainer is communicated with described 5th oil duct, and described 5th oil duct is communicated with described 4th oil duct with described first oil duct respectively.
3. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 2, it is characterized in that, described valve body offers the spool mount inlet being communicated with described second oil duct, described spool mount inlet is in order to install described temperature controlled valve core.
4. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 2, is characterized in that, described valve body is extended with the oil being communicated with described 5th oil duct and filters joint, and described oil strainer and described oil are filtered joint and is connected and formed and be communicated with.
5. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 1, it is characterized in that, described oily filter thermostat valve assembly is fastenedly connected by multiple fastening piece and described cooler.
6. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 5, it is characterized in that, described valve body offers the mounting hole worn for described fastening piece, described fastening piece one end is passed described valve body and is stretched in described cooler to be formed and fixes, and the described fastening piece the other end is resisted against on the outer wall of described valve body.
7. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 6, it is characterized in that, described fastening piece is the bolt with nut, and described nut is resisted against on the outer wall of described valve body.
8. the fuel injection helical lobe compressor oil circuit cold filtration assembly as described in any one of claim 5 to 7, is characterized in that, all pads and be provided with O type circle between described first filler opening and described second oil outlet, between described first oil outlet and described second filler opening.
9. fuel injection helical lobe compressor oil circuit cold filtration assembly as claimed in claim 1, it is characterized in that, described valve body is inserted with oil filter pressure differential indicator, and one end of described oil filter pressure differential indicator is stretched in described oil duct, described oil filter pressure differential indicator is used to indicate the pressure reduction of lubricant oil described in described oil duct.
10. fuel injection helical lobe compressor, comprise compressor host, it is characterized in that, also comprise the fuel injection helical lobe compressor oil circuit cold filtration assembly described in any one of claim 1 to 9, described lubricating oil outlet is connected with the oil-way system of described compressor host and is formed and is communicated with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104393.0U CN204610290U (en) | 2015-02-12 | 2015-02-12 | Fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520104393.0U CN204610290U (en) | 2015-02-12 | 2015-02-12 | Fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204610290U true CN204610290U (en) | 2015-09-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520104393.0U Withdrawn - After Issue CN204610290U (en) | 2015-02-12 | 2015-02-12 | Fuel injection helical lobe compressor oil circuit cold filtration assembly and fuel injection helical lobe compressor thereof |
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| Country | Link |
|---|---|
| CN (1) | CN204610290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675706A (en) * | 2015-02-12 | 2015-06-03 | 深圳寿力亚洲实业有限公司 | Oil way cooling and filtering assembly for oil-injected screw compressor and oil-injected screw compressor |
-
2015
- 2015-02-12 CN CN201520104393.0U patent/CN204610290U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104675706A (en) * | 2015-02-12 | 2015-06-03 | 深圳寿力亚洲实业有限公司 | Oil way cooling and filtering assembly for oil-injected screw compressor and oil-injected screw compressor |
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| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170329 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20170329 |