CN102313126A - Integrated lubricating grease recovery system - Google Patents
Integrated lubricating grease recovery system Download PDFInfo
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- CN102313126A CN102313126A CN201110312380A CN201110312380A CN102313126A CN 102313126 A CN102313126 A CN 102313126A CN 201110312380 A CN201110312380 A CN 201110312380A CN 201110312380 A CN201110312380 A CN 201110312380A CN 102313126 A CN102313126 A CN 102313126A
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- waste oil
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- 239000004519 grease Substances 0.000 title claims abstract description 35
- 230000001050 lubricating effect Effects 0.000 title abstract 2
- 238000011084 recovery Methods 0.000 title abstract 2
- 239000002699 waste material Substances 0.000 claims abstract description 202
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000005461 lubrication Methods 0.000 claims description 33
- 239000002828 fuel tank Substances 0.000 claims description 8
- 238000007789 sealing Methods 0.000 claims description 5
- 230000007306 turnover Effects 0.000 claims description 5
- 239000012530 fluid Substances 0.000 claims description 3
- 238000007443 liposuction Methods 0.000 claims description 3
- 238000000605 extraction Methods 0.000 claims description 2
- 239000000945 filler Substances 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
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Abstract
The invention relates to an integrated lubricating grease recovery system, which comprises a pressure oil pump, a two-position four-way electromagnetic valve, a waste oil discharge and suction control oil pipe, an electronic control device and the like, wherein an oil inlet opening of the two-position four-way electromagnetic valve is communicated with an oil outlet path of the pressure oil pump, an oil return opening is communicated with an oil tank of the pressure oil pump, the waste oil discharge and suction control oil pipe is respectively communicated with the other two oil openings of the two-position four-way electromagnetic valve, a waste oil cavity, a waste oil discharge pressure oil cavity and a waste oil suction pressure oil cavity are respectively arranged in each hydraulic piston pump, four interfaces are respectively communicated with a waste oil discharge interface, the waste oil suction interface and a waste oil discharge and suction pressure interface of the waste oil cavity, the waste oil cavity of the hydraulic piston pump is conducted with a waste oil collection pipe in one way through the waste oil discharge interface and a one-way valve for discharging oil to the waste oil collection pipe, the waste oil cavity of the hydraulic piston pump is conducted with a waste oil outlet opening arranged on a friction pair in one way through the waste oil suction interface, the waste oil discharge pressure oil interface and the waste oil suction pressure oil interface are respectively communicated onto a waste oil control oil pipe and the waste oil suction control oil pipe, and the waste oil collection pipe is connected into a waste oil collection container.
Description
Technical field
The invention belongs to lubrication technical field, relate to a kind of grease reclaiming system, relate in particular to a kind of centralized lubrication grease reclaiming system.
Background technique
In recent years, in the grease lubrication technical field, the grease lubrication technology has obtained development widely.Especially at regular time and quantity centralized lubrication is technological, has more scientifically solved the grease lubrication problem of machinery friction pair, has obtained popularization and application.But existing centralized lubrication product all is consumption-type mostly, and after new grease added the lubricant housings, waste and old grease was extruded, and arbitrarily drippage is discarded, seldom reclaims.Seriously polluted to machinery equipment and operating environment, the waste and old grease that also makes some can reclaim the reprocessing utilization originally wastes.Therefore, be necessary to develop the technology that when the centralized lubrication operation, can collect waste oil simultaneously, thereby realize low-carbon environment-friendly, reach the purpose of benefiting the nation and the people.
Summary of the invention
The purpose of this invention is to provide a kind of centralized lubrication grease reclaiming system, can be in time reclaim the waste and old grease that friction pair is discharged in the centralized lubrication process automatically, make its regeneration, satisfy environmental requirement and economize on resources.
The present invention adopts following technical proposals to achieve the above object: a kind of centralized lubrication grease reclaiming system; Comprise pressure oil pump, two position four-way solenoid valves, waste discharge oil control oil pipe, the suction waste oil control oil pipe of being with fuel tank; By said waste discharge oil control oil pipe and the electric control device of inhaling fluid-operated piston pump, waste oil collecting pipe and the operation of control whole system that waste oil control oil pipe driven carries out liposuction and row's fat etc.; The filler opening cut-in pressure oil pump vent line of two position four-way solenoid valves; And the fuel tank of its return opening cut-in pressure oil pump; Waste discharge oil control oil pipe is connected two position four-way solenoid valves, two hydraulic fluid ports in addition respectively with the front end of inhaling waste oil control oil pipe; A waste oil chamber, a waste discharge oil pressure oil pocket and a suction waste oil pressure oil cavity are arranged in each fluid-operated piston pump; Corresponding interface is respectively the waste discharge oil interface and the suction waste oil interface that makes waste oil chamber suction waste oil that are used to discharge waste oil in the waste oil chamber that lead to the waste oil chamber, and the suction waste oil pressure oil interface of the waste discharge oil pressure of conducting waste discharge oil pressure oil pocket oil interface and conducting suction waste oil pressure oil cavity; The waste oil chamber of fluid-operated piston pump is through waste discharge oil interface with to the unidirectional conducting waste oil of the one-way valve collecting pipe of waste oil collecting pipe oil extraction; Portal through making it suck the waste oil that is provided with on the unidirectional conducting friction pair of suction waste oil interface of waste oil in the waste oil chamber of fluid-operated piston pump, its waste discharge oil pressure oil interface and suction waste oil pressure oil interface are connected on waste discharge oil control oil pipe respectively and control on the oil pipe with suction waste oil, and said waste oil collecting pipe inserts the collection waste oil container.
Said fluid-operated piston pump comprise a housing that has a single order step hole and with two sector holes of this step hole ladder piston of cooperating of slipper seal all; Form the waste oil chamber between ladder piston small end face and housing aperture end face; Form waste discharge oil pressure oil pocket between the big hole end surface of ladder piston large end face and housing, form between the shaft shoulder in the middle of the ladder piston and the shoulder in the middle of housing two sector holes and inhale the waste oil pressure oil cavity.
Said fluid-operated piston pump comprises reciprocating pump and two-way cylinder; Reciprocating pump comprises the piston that the piston pump housing and chamber slipper seal within it cooperate; The piston pump housing and piston one end form the waste oil chamber, and the two-way cylinder two ends are respectively equipped with waste discharge oil pressure oil pocket and inhale the waste oil pressure oil cavity, and two-way cylinder one end is provided with guide hole; The cylinder rod of two-way cylinder stretches out from guide hole; Cylinder rod cooperates with the guide hole slipper seal, and reciprocating pump is fixedly connected along axis with two-way cylinder, the cylinder rod external part along axis and the piston the other end be linked together.
Said fluid-operated piston pump comprises reciprocating pump and two-way cylinder; Reciprocating pump comprises piston and the return spring that the piston pump housing, chamber slipper seal within it cooperate, and the piston pump housing and piston one end form the waste oil chamber, and return spring leans between the piston pump housing and piston; The two-way cylinder two ends are respectively equipped with waste discharge oil pressure oil pocket and inhale the waste oil pressure oil cavity; Two-way cylinder one end is provided with guide hole, and the cylinder rod of two-way cylinder stretches out from guide hole, and cylinder rod cooperates with the guide hole slipper seal; Reciprocating pump is fixedly connected along axis with two-way cylinder, and the cylinder rod external part leans at the piston the other end along axis.
Said collection waste oil container comprises two ends cylinder, the big piston that cooperates with the cylinder bore slipper seal with cover, be used to promote push rod that big piston moves etc.; Form sealing collection waste oil chamber between cylinder bore upper end cap and big piston; The cylinder upper end cap is provided with and is used to be tightly connected waste oil collecting pipe and the oily interface of the turnover of discharging waste oil; The cylinder lower end cap is provided with along the guide hole of cylinder bore axial direction, and push rod one end stretches into cylinder inner carrier one side through guide hole, and the other end stretches out outside the guide hole.
Further, in said cylinder, be provided with the big piston supported spring along the cylinder bore axial direction between big piston and the lower end cap.
Said fluid-operated piston pump is connected to the indicating arm of indication waste oil chamber volume-variation limit position.
Said fluid-operated piston pump is connected to the automatically controlled sensor of indication waste oil chamber volume-variation limit position.
The present invention can reach following good effect after adopting said structure: can the waste and old grease of discharging in time be reclaimed automatically, not only environmental protection but also energy-conservation.Product adaptation of the present invention is in all kinds of electromechanical equipments that need the grease centralized lubrication such as food machinery, metallurgy, lifting transportations, particularly the strict electromechanical equipment of environmental requirement.
Description of drawings
Fig. 1 is centralized lubrication grease reclaiming system embodiment 1 structural representation of the present invention.
Fig. 2 is the fluid-operated piston pump structure schematic representation among the centralized lubrication grease reclaiming system embodiment 1 of the present invention.
Fig. 3 is the structural representation of the collection waste oil container among the centralized lubrication grease reclaiming system embodiment 1 of the present invention.
Embodiment
Through accompanying drawing the present invention is done below and further describe.In centralized lubrication grease reclaiming system embodiment 1 structural representation shown in Figure 1; Centralized lubrication grease reclaiming system comprise the pressure oil pump 2 of being with fuel tank 1, two position four-way solenoid valves 4, waste discharge oil control oil pipe 6 and inhale waste oil control oil pipe 7, by said waste discharge oil control oil pipe 6 with inhale the electric control device 3 etc. of fluid-operated piston pump 8, waste oil collecting pipe 9, collection waste oil container 5 and the operation of control whole system that waste oil control oil pipe 7 driven carry out liposuction and row's fat; The vent line of the oil inlet P cut-in pressure oil pump 2 of two position four-way solenoid valves 4; And the fuel tank 1 of its oil return inlet T cut-in pressure oil pump 2; Waste discharge oil control oil pipe 6 is connected two position four-way solenoid valves 4, two hydraulic fluid ports in addition respectively with the front end of inhaling waste oil control oil pipe 7; Waste discharge oil control oil pipe 6 is connected on the fluid-operated piston pump 8 with suction waste oil control oil pipe 7; Fluid-operated piston pump 8 is provided with suction waste oil interface and is connected on the lubrication friction pair, and fluid-operated piston pump 8 is provided with waste discharge oil interface and inserts waste oil collecting pipes 9 through one-way valve 10, feeds to collect waste oil containers 5 again.
In grease centralized lubrication shown in Figure 2 and the fluid-operated piston pump structure schematic representation among the reclaiming system embodiment 1; Fluid-operated piston pump 8 comprise a housing 11 that has a single order step hole and with two sector holes of this step hole ladder piston 12 of cooperating of slipper seal all; Form waste oil chamber a between ladder piston 12 small end faces and housing 11 aperture end faces; Form waste discharge oil pressure oil pocket c between ladder piston 12 large end faces and housing 11 big hole end surfaces, form between the shoulder in the middle of 11 liang of sector holes of the shaft shoulder in the middle of the ladder piston 12 and housing and inhale waste oil pressure oil cavity b.Corresponding interface; Be respectively the waste discharge oil interface d and the suction waste oil interface f that makes waste oil chamber a suction waste oil that are used to discharge waste oil in a of waste oil chamber that lead to waste oil chamber a; And waste discharge oil pressure oil interface g and suction waste oil pressure oil interface e; The waste discharge oil interface d of each fluid-operated piston pump 8 is through one-way valve 10 unidirectional conducting waste oil collecting pipes 9; The waste oil that is provided with on its suction waste oil interface f conducting lubrication friction pair portals, and its waste discharge oil pressure oil interface g and suction waste oil pressure oil interface e are connected on respectively on the two-way control oil pipe 6 and 7, waste oil collecting pipe 9 feeding collection waste oil containers 5.Fluid-operated piston pump 8 also can be connected to the indicating arm of indication waste oil chamber a volume-variation limit position, perhaps is connected to the automatically controlled sensor of indication waste oil chamber a volume-variation limit position.
In grease centralized lubrication shown in Figure 3 and the collection waste oil container structural representation among the reclaiming system embodiment 1; Collection waste oil container 5 comprises two ends cylinder with cover 14, the big piston 13 that cooperates with cylinder 14 inner chamber slipper seals, be used to promote push rod 15 that big piston 13 moves etc.; 13 of cylinder 14 inner chamber upper end caps and big pistons form sealing collection waste oil chamber k; Cylinder 14 upper end caps are provided with the waste oil collecting pipe 9 that is used to be tightly connected and are provided with along the guide hole m of cylinder 14 inner chamber axial directions with the oily interface h of the turnover of discharging waste oil, lower end cap; Push rod 15 1 ends are in guide hole m stretches into cylinder 14, and the other end stretches out outside the guide hole m.In cylinder 14, along cylinder 14 inner chamber axial directions a big piston supported spring can also be set between big piston 13 and cylinder 14 lower end caps.
Under electric control device 3 controls; Pressure oil pump 2 is at first switched on; Pressure oil pump 2 is fuel-displaced to get into two position four-way solenoid valves 4 through oil inlet P, gets into the waste discharge oil pressure oil pocket c of fluid-operated piston pumps 8 again through waste discharge oil control oil pipe 6, and oil pressure promotes ladder piston 12 and moves to the small end face direction from the large end face direction; Inhale the interior grease of waste oil pressure oil cavity b and flow back to fuel tank 1 through the oil return inlet T of inhaling waste oil pressure oil interface e, suction waste oil control oil pipe 7 and two position four-way solenoid valves 4 successively; Simultaneously, ladder piston 12 sealing is earlier inhaled behind the waste oil interface f the waste oil in a of waste oil chamber successively through oily interface d of waste discharge and one-way valve 10, is pressed into waste oil collecting pipe 9 and is pooled to collect waste oil container 5.After the waste oil of waste oil chamber a has been arranged; Two position four-way solenoid valves 4 energising switching-over, pressure oil pump 2 is fuel-displaced to get into two position four-way solenoid valves 4 through oil inlet P, pushes back ladder piston 12 through inhaling the suction waste oil pressure oil cavity b that waste oil control oil pipe 7 gets into fluid-operated piston pumps 8 again; Grease flows back to fuel tank 1 through the oil return inlet T of waste discharge oil pressure oil interface g, waste discharge oil control oil pipe 6 and two position four-way solenoid valves 4 successively in the waste discharge oil pressure oil pocket c; Simultaneously, waste oil chamber a volume enlarge and again conducting inhale the waste oil that is provided with on waste oil interface f and the lubrication friction pair and portal, the waste and old grease of sucking-off in the lubrication friction pair; Reduce to press in the lubrication friction pair, so that better inject new grease.Fluid-operated piston pump 8 also can be made two-way cylinder and reciprocating pump two body fixed structures.
Further; Waste oil in the waste oil collecting pipe 9 is through the turnover oil interface h indentation sealing collection waste oil chamber k of collection waste oil container 5; After collecting a certain amount of waste oil, oily interface h takes off waste oil collecting pipe 9 from the turnover of collection waste oil container 5, manually presses push rod 15; Extrude waste oil from passing in and out oily interface h, connect waste oil collecting pipe 9 then.
Claims (8)
1. centralized lubrication grease reclaiming system, comprise pressure oil pump (2), two position four-way solenoid valves (4), the waste discharge oil control oil pipe (6) of band fuel tank (1) and inhale waste oil control oil pipe (7), by said waste discharge oil control oil pipe (6) with inhale waste oil control oil pipe (7) driven and carry out fluid-operated piston pump (8), waste oil collecting pipe (9), the collection waste oil container (5) of liposuction and row's fat and control the electric control device (3) that whole system is moved; It is characterized in that: two position four-way solenoid valves (4) filler openings (P) cut-in pressure oil pumps (2) vent line; And the fuel tank (1) of its return opening (T) cut-in pressure oil pump (2); Waste discharge oil control oil pipe (6) and suction waste oil control oil pipe (7) front end are connected two position four-way solenoid valves (4), two hydraulic fluid ports in addition respectively; A waste oil chamber (a), a waste discharge oil pressure oil pocket (c) and a suction waste oil pressure oil cavity (b) are arranged in the fluid-operated piston pump (8); Corresponding interface; Be respectively the waste discharge oil interface (d) and the suction waste oil interface (f) that makes waste oil chamber (a) suction waste oil that are used to discharge the interior waste oil in waste oil chamber (a) that lead to waste oil chamber (a); And the suction waste oil pressure oil interface (e) of the waste discharge oil pressure of conducting waste discharge oil pressure oil pocket (c) oil interface (g) and conducting suction waste oil pressure oil cavity (b); The waste oil chamber (a) of fluid-operated piston pump (8) is through waste discharge oil interface (d) with to one-way valve (10) the unidirectional conducting waste oil collecting pipe (9) of waste oil collecting pipe (9) oil extraction; Portal through making it suck the waste oil that is provided with on the unidirectional conducting friction pair of suction waste oil interface (f) of waste oil in the waste oil chamber (a) of fluid-operated piston pump (8); Its waste discharge oil pressure oil interface (g) and suction waste oil pressure oil interface (e) are connected on waste discharge oil control oil pipe (6) respectively and inhale on the waste oil control oil pipe (7), said waste oil collecting pipe (9) access collection waste oil container (5).
2. centralized lubrication grease reclaiming system according to claim 1; It is characterized in that: said fluid-operated piston pump (8) comprise a housing (11) that has a single order step hole and with two sector holes of this step hole ladder piston (12) of cooperating of slipper seal all; Form waste oil chamber (a) between the aperture end face of the small end face of ladder piston (12) and housing (11); Form waste discharge oil pressure oil pocket (c) between the big hole end surface of the large end face of ladder piston (12) and housing (11), form between the shoulder in the middle of two sector holes of the shaft shoulder of the centre of ladder piston (12) and housing (11) and inhale waste oil pressure oil cavity (b).
3. centralized lubrication grease reclaiming system according to claim 1; It is characterized in that: said fluid-operated piston pump (8) comprises reciprocating pump and two-way cylinder, and reciprocating pump comprises the piston that the piston pump housing and chamber slipper seal within it cooperate, and the piston pump housing and piston one end form the waste oil chamber; The two-way cylinder two ends are respectively equipped with waste discharge oil pressure oil pocket and inhale the waste oil pressure oil cavity; Two-way cylinder one end is provided with guide hole, and the cylinder rod of two-way cylinder stretches out from guide hole, and cylinder rod cooperates with the guide hole slipper seal; Reciprocating pump is fixedly connected along axis with two-way cylinder, the cylinder rod external part along axis and the piston the other end be linked together.
4. centralized lubrication grease reclaiming system according to claim 1; It is characterized in that: said fluid-operated piston pump (8) comprises reciprocating pump and two-way cylinder; Reciprocating pump comprises piston and the return spring that the piston pump housing, chamber slipper seal within it cooperate, and the piston pump housing and piston one end form the waste oil chamber, and return spring leans between the piston pump housing and piston; The two-way cylinder two ends are respectively equipped with waste discharge oil pressure oil pocket and inhale the waste oil pressure oil cavity; Two-way cylinder one end is provided with guide hole, and the cylinder rod of two-way cylinder stretches out from guide hole, and cylinder rod cooperates with the guide hole slipper seal; Reciprocating pump is fixedly connected along axis with two-way cylinder, and the cylinder rod external part leans at the piston the other end along axis.
5. centralized lubrication grease reclaiming system according to claim 1; It is characterized in that: said collection waste oil container (5) comprises two ends cylinder (14), the big piston (13) that cooperates with the inner chamber slipper seal of cylinder (14) with cover, is used to promote the push rod (15) that big piston (13) moves; Form sealing collection waste oil chamber (k) between the inner chamber upper end cap of cylinder (14) and the big piston (13); The upper end cap of cylinder (14) is provided with the turnover oil interface (h) of be used to be tightly connected waste oil collecting pipe (9) and discharging waste oil; The lower end cap of cylinder (14) is provided with the guide hole (m) along the inner chamber axial direction of cylinder (14); Push rod (15) one ends stretch into piston one side in the cylinder (14) through guide hole (m), and the other end stretches out outside the guide hole (m).
6. centralized lubrication grease reclaiming system according to claim 5 is characterized in that: the inner chamber axial direction along cylinder (14) between big piston (13) in said cylinder (14) and the lower end cap is provided with the big piston supported spring.
7. grease centralized lubrication according to claim 1 and reclaiming system is characterized in that: said fluid-operated piston pump (8) is connected to the indicating arm of indication waste oil chamber (a) volume-variation limit position.
8. grease centralized lubrication according to claim 1 and reclaiming system is characterized in that: said fluid-operated piston pump (8) is connected to the automatically controlled sensor of indication waste oil chamber (a) volume-variation limit position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312380 CN102313126B (en) | 2011-10-17 | 2011-10-17 | Integrated lubricating grease recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110312380 CN102313126B (en) | 2011-10-17 | 2011-10-17 | Integrated lubricating grease recovery system |
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| Publication Number | Publication Date |
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| CN102313126A true CN102313126A (en) | 2012-01-11 |
| CN102313126B CN102313126B (en) | 2013-04-10 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006282A (en) * | 2014-05-27 | 2014-08-27 | 郑州奥特科技有限公司 | Two-way control grease absorber and waste grease recovery device |
| CN105092150A (en) * | 2015-06-08 | 2015-11-25 | 江苏方天电力技术有限公司 | Fast connectable oil-stain separation interface arrangement for pressure detection apparatus |
| CN109578445A (en) * | 2017-09-29 | 2019-04-05 | 郑州奥特科技有限公司 | Grease lubricating bearing system |
| EP3690301A4 (en) * | 2017-10-25 | 2021-06-09 | Zhengzhou Autol Technology Co., Ltd. | Grease pumping device |
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| CN202281023U (en) * | 2011-10-17 | 2012-06-20 | 赵大平 | Centralized lubrication grease recovery system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104006282A (en) * | 2014-05-27 | 2014-08-27 | 郑州奥特科技有限公司 | Two-way control grease absorber and waste grease recovery device |
| CN105092150A (en) * | 2015-06-08 | 2015-11-25 | 江苏方天电力技术有限公司 | Fast connectable oil-stain separation interface arrangement for pressure detection apparatus |
| CN105092150B (en) * | 2015-06-08 | 2018-05-04 | 江苏方天电力技术有限公司 | A kind of fast-connecting type greasy dirt separation interface device of pressure-detecting device |
| CN109578445A (en) * | 2017-09-29 | 2019-04-05 | 郑州奥特科技有限公司 | Grease lubricating bearing system |
| EP3690301A4 (en) * | 2017-10-25 | 2021-06-09 | Zhengzhou Autol Technology Co., Ltd. | Grease pumping device |
| US11560980B2 (en) | 2017-10-25 | 2023-01-24 | Zhengzhou Autol Technology Co., Ltd. | Grease pumping device |
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| CN102313126B (en) | 2013-04-10 |
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Application publication date: 20120111 Assignee: ZHENGZHOU AUTOL TECHNOLOGY Co.,Ltd. Assignor: Zhao Daping Contract record no.: 2013410000054 Denomination of invention: Integrated lubricating grease recovery system Granted publication date: 20130410 License type: Exclusive License Record date: 20130621 |
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Effective date of registration: 20230330 Address after: 450001 No. 35, Jinsuo Road, High-tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee after: ZHENGZHOU AUTOL TECHNOLOGY Co.,Ltd. Address before: 450001 Zhengzhou Aote Technology Co., Ltd. at the intersection of Hehuan Street and Lamei Road, High-tech Zone, Zhengzhou City, Henan Province Patentee before: Zhao Daping |
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Address after: No.450001, Hehuan street, Zhengzhou City, Henan Province Patentee after: ZHENGZHOU AUTOL TECHNOLOGY Co.,Ltd. Address before: 450001 No. 35, Jinsuo Road, High-tech Industrial Development Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU AUTOL TECHNOLOGY Co.,Ltd. |