CN105156373A - High-level oil tank with pressure and low oil supply pressure losses - Google Patents
High-level oil tank with pressure and low oil supply pressure losses Download PDFInfo
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- CN105156373A CN105156373A CN201510529422.2A CN201510529422A CN105156373A CN 105156373 A CN105156373 A CN 105156373A CN 201510529422 A CN201510529422 A CN 201510529422A CN 105156373 A CN105156373 A CN 105156373A
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Abstract
The invention discloses a high-level oil tank with pressure and low oil supply pressure losses. The high-level oil tank solves the technical problems that lubricating oil is wasted and the environment is polluted due to the fact that the lubricating oil overflows from an air filter on the condition that the lubricating oil in an existing high-level oil tank is high in oil supply pressure, and emergent lubrication is not facilitated due to the fact that the lubricating oil in a tank body of the existing high-level oil tank needs to overcome spring force of a spring inside a one-way valve and resistance is lost during emergent lubrication. The high-level oil tank comprises a tank body. The bottom of the tank body is provided with a blow-off pipe and a working oil pipe. A blow-off valve is arranged on the blow-off pipe. A switching control valve is arranged on a working oil pipe. A connecting pipe is arranged on the top of the tank body. A throttling orifice set is arranged on the connecting pipe and connected with a prepressing type air filter through an overflowing pipe. An overflowing opening is formed in one side of the middle of the overflowing pipe and connected with an oil return pipe. An oil return peeping opening is formed in the oil return pipe. The high-level oil tank has the beneficial effects of being low in oil supply pressure loss, safe and environmentally friendly.
Description
Technical field
The present invention relates to the top petrol tank field that lubricating oil system, shaft sealing oil system etc. are commonly used, relate to a kind of charge oil pressure more specifically and lose little top petrol tank with pressure.
Background technique
Top petrol tank is the emergency tank for subsequent use of the urgency being applied to compressor, turbine engine, gear drive, pump and driving machine etc.; When lubricating oil system, shaft sealing oil system and Control & Protective break down; in equipment moderating process; top petrol tank is a kind of preventive measure ensureing that device security is shut down, and enough supplying lubricant oil, sealing oil and controlling oil, effectively can prevent device damage for ensureing.
As shown in Figures 1 to 3, existing top petrol tank comprises casing 10, casing 10 is provided with air filter 11, described casing 10 is connected with drain pipe 13, working tubing 15 and return tube 18, described drain pipe 13 is provided with blowdown valve 12, working tubing 15 is arranged in parallel one-way valve 14 and by-pass switch 16, return tube 18 is provided with oil return viewport 17, described one-way valve 14 includes valve body 14-1, valve gap 14-2, flap 14-3 and spring 14-4, described flap 14-3 and spring 14-4 is positioned at valve body 14-1, described spring 14-4 two ends are connected with valve gap 14-2 and flap 14-3 respectively, by spring 14-4, flap 14-3 is pressed onto in valve body 14-1, described flap 14-3 center is provided with through hole 14-3.1.
The working principle of existing top petrol tank:
In main process equipment stand-alone debugging start-up course, the lubricant oil of petrol station by the by-pass switch valve 16 on the working tubing 15 of top petrol tank to casing 10 fuel feeding, until see having lubricant oil to overflow from oil return viewport 17, show that top petrol tank is in the state of filling;
In main process equipment normal course of operation, close by-pass switch valve 16, because the spring force of the spring 14-4 of one-way valve 14 and the charge oil pressure effect of lubricant oil make one-way valve 14 reverse blocking, lubricant oil can only by the flap 14-3 of one-way valve 14 adding the through hole 14-3.1 of work to top petrol tank casing 10 oiling, and the size of this through hole 14-3.1 has certain spillway discharge to be suitable can meet casing 10 after filling oil;
When main process equipment break down need emergency lubrication time, the one-way valve 14 forward conduction function of top petrol tank, lubricant oil in casing 10 is after Action of Gravity Field overcomes the spring force of spring 14-4164 of one-way valve 14, to each lubricating point fuel feeding of main process equipment, pressure-oil tank is in Fuel injection system, except the inevitable pressure loss caused due to on-the-spot line arrangement, also there is the spring force needing the spring 14-4 overcoming one-way valve 14;
There is following shortcoming in existing top petrol tank:
1, in main process equipment stand-alone debugging start-up course, existing top petrol tank when lubricant oil charge oil pressure or flow larger, lubricant oil has little time to flow out from return tube 18, cause overflowing from the air filter 11 of top petrol tank, cause the waste of lubricant oil, and cause the pollution to top petrol tank and environment.If need the appearance avoiding this situation, can have two kinds of settling modes: first kind of way, the air filter 11 paying close attention to top petrol tank exports and oil return viewport 17, when there being lubricant oil to overflow, turning down in time or closing by-pass switch valve 16; But it is cumbersome to operate in Practical Project, do not meet man-machine design principle yet; The second way, by top petrol tank top design liquid level sensor, and is designed to electric control valve or electric switching valve by by-pass switch valve 16, and interlocking controls by-pass switch valve 16 automatically, and the cost adding system so undoubtedly drops into.
2, when main process equipment needs emergency lubrication, when lubricant oil in existing top petrol tank is under gravity by one-way valve 14, except needing to overcome the inevitable pressure loss that causes due to on-the-spot line arrangement, also there is the spring force needing the spring 14-4 overcoming one-way valve 14, there is certain drag losses, and be unfavorable for the lubrication of main frame; Even sometimes, because the gravity deficiency of liquid level generation is to overcome the spring force of one-way valve 14, the flap 14-3 of one-way valve 14 closes under the effect of the spring force of spring 14-4, at this moment remain lubricant oil in casing 10 to be lubricated main process equipment by the through hole 14-3.1 of the flap 14-3 of one-way valve 14, limited by this lubrication effect of through hole 14-3.1, if make up this pressure loss, so need the setting height(from bottom) improving this top petrol tank, or increase the volume of fuel tank, this also can cause the increase of system cost.
3, when ambient temperature is very low, because petrol station is very little to the circular flow of the lubrication deep fat in casing 10 by the through hole 14-3.1 of the flap 14-3 of one-way valve 14, the lubricating oil temperature in casing 10 can be made lower, viscosity becomes large or occurs condensation phenomenon, if when the system that at this moment runs into needs emergency lubrication, just emergency lubrication effect can not be played; In order to address this problem, on the one hand in order to avoid blocking and condensation, so just need the aperture increasing aperture 14-3 on one-way valve 14 flap 14-3, thus adding the spillway discharge of top petrol tank lubricant oil, but the loss of flow system flow and energy consumption can be caused; Can carry out antifreeze coated to top petrol tank and pipeline thereof on the other hand, also cause the increase of construction cost undoubtedly.
How to solve the problems of the technologies described above the striving direction into those skilled in the art.
Summary of the invention
The present invention is in order to overcome above-mentioned technical deficiency, there is provided a kind of structure simple, cost is low, and pressure loss during urgent fuel feeding is little, non lubricant oil in stand-alone debugging start-up course overflows, safety and environmental protection, but also can lose little top petrol tank with pressure by normal fuel injection charge oil pressure during low temperature environment.
The present invention to achieve these goals concrete by the following technical solutions:
A kind of charge oil pressure loses little top petrol tank with pressure, comprise casing, described bottom half is provided with drain pipe and working tubing, described drain pipe is provided with blowdown valve, described working tubing is provided with switching control pilot, described casing top is provided with connecting tube, connecting tube is provided with restricting orifice group, restricting orifice group is connected with prepressing type air filter by spill pipe, in the middle part of described spill pipe, side is provided with flow-off, flow-off is connected with return tube, described return tube is provided with oil return viewport.
Further, described restricting orifice group comprises up-hole plate and orifice plate, tunnel tube is connected with between described up-hole plate and orifice plate, dynamic seal (packing) flap is provided with in described tunnel tube, flexible support spring is connected with under dynamic seal (packing) flap, described flexible support lower spring end is connected with orifice plate, described dynamic seal (packing) flap is provided with throttling pore, gap is there is bottom described dynamic seal (packing) flap and up-hole plate, dynamic seal (packing) flap and flexible support spring ensure that restricting orifice group orifice restriction from bottom to top, one-way conduction from top to bottom.
Further, described dynamic seal (packing) flap is discoid, dynamic seal flap edge is symmetrically arranged with two chucking lugs, is provided with two support blocks corresponding with two chucking lugs in described tunnel tube, and the distance between bottom described support block and up-hole plate is greater than the thickness of chucking lug.
Further, described switching control pilot is straight-through valve.
Further, described prepressing type air filter is positioned at the end of spill pipe, and prepressing type air filter one-way conduction from top to bottom needs to overcome precompression from bottom to top.
Working principle:
In the startup of main process equipment stand-alone debugging and normal course of operation, the lubricant oil of petrol station by the working tubing of top petrol tank, the switching control pilot of standard-sized sheet to casing fuel feeding, after filling, overflowed from overflow pipe by the restricting orifice group above casing, overflow pipe lubricant oil out gets back to main process equipment from return tube, whether lubricant oil is for full for observing in casing for oil return viewport on return tube, and the flow of spill pipe is determined by the size of the throttling pore in restricting orifice group.
Prepressing type air filter is positioned at the end of spill pipe, prepressing type air filter has certain pressure, and one-way conduction, lubricant oil enters oil pressure reduction in spill pipe through the throttling pore of orifice plate group, and lower than the precompression of prepressing type air filter, not by resistance when air enters top petrol tank from atmosphere environment, the precompression of prepressing type air filter is needed to overcome when oil will be flowed out from top petrol tank by air filter, so, in device start or normal course of operation, lubricant oil in casing can only after restricting orifice group, overflow from flow-off, lubricant oil is there will not be to overflow top petrol tank accident.
When main process equipment needs emergency lubrication, due to the one-way conduction effect of the air filter of prepressing type and the reverse unimpeded effect of restricting orifice group, lubricant oil in casing passes through switching control pilot each lubricating point fuel feeding to main frame of standard-sized sheet under gravity, except the inevitable pressure loss caused due to on-the-spot line arrangement, there is not drag losses, and be conducive to the lubrication of main process equipment, also blocking and condensation can not be there is when ambient temperature is low, ensure that top petrol tank emergency lubrcation is unobstructed, in this process, switching control pilot is normally open, do not need hand control switch control valve.
Beneficial effect of the present invention is as follows:
The setting of restricting orifice group of the present invention and prepressing type air filter, make after in casing, lubricant oil is filled, can only overflow from flow-off after restricting orifice group, avoid occurring that in conventional art, lubricant oil overflows from air filter and causes the waste of lubricant oil, and cause problems such as the pollutions of top petrol tank and environment;
Simultaneously, when equipment needs emergency lubrication, the one-way conduction effect of the air filter of prepressing type and the reverse unimpeded effect of restricting orifice group, lubricant oil in casing passes through switching control pilot each lubricating point fuel feeding to main process equipment of standard-sized sheet under gravity, except the inevitable pressure loss caused due to on-the-spot line arrangement, there is not drag losses, the circular flow of its lubricant oil is enough, still can normal fuel injection when guaranteeing low temperature environment, be conducive to the height reducing factory building, reduce factory building construction cost.
Accompanying drawing explanation
Fig. 1 is the principle diagram of more representative normal pressure top petrol tank in prior art;
Fig. 2 is the cross section structure diagram of one-way valve in Fig. 1;
Fig. 3 is the cross section structure diagram after the valve plate boring of one-way valve in Fig. 2;
Fig. 4 is the structural representation that a kind of charge oil pressure of the present invention loses little top petrol tank with pressure;
Fig. 5 is the schematic diagram of Fig. 4;
Fig. 6 is the structural scheme of mechanism of restricting orifice group;
Fig. 7 is the structural representation of dynamic seal (packing) flap in restricting orifice group;
Fig. 8 is the plan view of Fig. 7;
Reference character: 1-connecting tube, 2-restricting orifice group, 2-1-up-hole plate, 2-2-tunnel tube, 2-3-orifice plate, 2-4-dynamic seal (packing) flap, 2-4.1-throttling pore, 2-4.2-chucking lug, 2-5-support block, 2-6-flexible support spring, 3-prepressing type air filter, 4-spill pipe, 5-switching control pilot, 10-casing, 11-air filter, 12-blowdown valve, 13-drain pipe, 14-one-way valve, 14-1-valve body, 14-2-valve gap, 14-3-flap, 14-3.1-through hole, 14-4-spring, 15-working tubing, 16-by-pass switch, 17-oil return viewport, 18-return tube.
Embodiment
In order to those skilled in the art person better understands the present invention, below in conjunction with accompanying drawing, embodiment is described in further detail the present invention.
Embodiment 1
As shown in Figures 4 and 5, the invention provides a kind of charge oil pressure and lose little top petrol tank with pressure, comprise casing 10, drain pipe 13 and working tubing 15 is provided with bottom described casing 10, described drain pipe 13 is provided with blowdown valve 12, it is characterized in that, described working tubing 15 is provided with switching control pilot 5, described casing 10 top is provided with connecting tube 1, connecting tube 1 is provided with restricting orifice group 2, restricting orifice group 2 is connected with prepressing type air filter 3 by spill pipe 4, in the middle part of described spill pipe 4, side is provided with flow-off 4-1, flow-off 4-1 is connected with return tube 18, described return tube 18 is provided with oil return viewport 17.
In the present embodiment, the setting of restricting orifice group 2 and prepressing type air filter 3, make after in casing 10, lubricant oil is filled, can only overflow from flow-off 4-1 after restricting orifice group 2, avoid occurring that in conventional art, lubricant oil overflows from air filter and causes the waste of lubricant oil, and cause problems such as the pollutions of top petrol tank and environment;
Simultaneously, when equipment needs emergency lubrication, the one-way conduction effect of the air filter 3 of prepressing type and the reverse unimpeded effect of restricting orifice group 2, lubricant oil in casing passes through switching control pilot each lubricating point fuel feeding to main process equipment of standard-sized sheet under gravity, except the inevitable pressure loss caused due to on-the-spot line arrangement, there is not drag losses, the circular flow of its lubricant oil is enough, still can normal fuel injection when guaranteeing low temperature environment, be conducive to the height reducing factory building, reduce factory building construction cost.
Embodiment 2
As shown in Figs. 4-6, the invention provides a kind of charge oil pressure and lose little top petrol tank with pressure, comprise casing 10, drain pipe 13 and working tubing 15 is provided with bottom described casing 10, described drain pipe 13 is provided with blowdown valve 12, it is characterized in that, described working tubing 15 is provided with switching control pilot 5, described casing 10 top is provided with connecting tube 1, connecting tube 1 is provided with restricting orifice group 2, restricting orifice group 2 is connected with prepressing type air filter 3 by spill pipe 4, in the middle part of described spill pipe 4, side is provided with flow-off 4-1, flow-off 4-1 is connected with return tube 18, described return tube 18 is provided with oil return viewport 17.
Described restricting orifice group 2 comprises up-hole plate 2-1 and orifice plate 2-3, tunnel tube 2-2 is connected with between described up-hole plate 2-1 and orifice plate 2-3, dynamic seal (packing) flap 2-4 is provided with in described tunnel tube 2-2, flexible support spring 2-6 is connected with under dynamic seal (packing) flap 2-4, described flexible support spring 2-6 lower end is connected with orifice plate 2-3, described dynamic seal (packing) flap 2-4 is provided with throttling pore 2-4.1, gap is there is bottom described dynamic seal (packing) flap 2-4 and up-hole plate 2-1, described restricting orifice group 2 orifice restriction from bottom to top, one-way conduction from top to bottom, this structure to arrange structure simple, be easy to manufacture, dynamic seal (packing) flap and flexible support spring ensure restricting orifice group 2 orifice restriction from bottom to top, one-way conduction from top to bottom.
Embodiment 3
As shown in Fig. 4 to 8, the invention provides a kind of charge oil pressure and lose little top petrol tank with pressure, comprise casing 10, drain pipe 13 and working tubing 15 is provided with bottom described casing 10, described drain pipe 13 is provided with blowdown valve 12, it is characterized in that, described working tubing 15 is provided with switching control pilot 5, described casing 10 top is provided with connecting tube 1, connecting tube 1 is provided with restricting orifice group 2, restricting orifice group 2 is connected with prepressing type air filter 3 by spill pipe 4, in the middle part of described spill pipe 4, side is provided with flow-off 4-1, flow-off 4-1 is connected with return tube 18, described return tube 18 is provided with oil return viewport 17.
Described restricting orifice group 2 comprises up-hole plate 2-1 and orifice plate 2-3, tunnel tube 2-2 is connected with between described up-hole plate 2-1 and orifice plate 2-3, dynamic seal (packing) flap 2-4 is provided with in described tunnel tube 2-2, flexible support spring 2-6 is connected with under dynamic seal (packing) flap 2-4, described flexible support spring 2-6 lower end is connected with orifice plate 2-3, described dynamic seal (packing) flap 2-4 is provided with throttling pore 2-4.1, gap is there is bottom described dynamic seal (packing) flap 2-4 and up-hole plate 2-1, dynamic seal (packing) flap and flexible support spring ensure restricting orifice group 2 orifice restriction from bottom to top, one-way conduction from top to bottom.
Dynamic seal (packing) flap 2-4 is discoid, dynamic seal (packing) flap 2-4 edge is symmetrically arranged with two chucking lug 2-4.2, be provided with two the support block 2-5s corresponding with two chucking lug 2-4.2 in described tunnel tube 2-2, the distance between bottom described support block 2-5 and up-hole plate 2-1 is greater than the thickness of chucking lug 2-4.2.
Described switching control pilot 5 is straight-through valve.
Described prepressing type air filter 3 is positioned at spill pipe 4 end, prepressing type air filter 3 one-way conduction from top to bottom.
The above; be only preferred embodiment of the present invention, not in order to limit the present invention, scope of patent protection of the present invention is as the criterion with claims; the equivalent structure change that every utilization specification of the present invention and accompanying drawing content are done, in like manner all should be included in protection scope of the present invention.
Claims (5)
1. a charge oil pressure loses little top petrol tank with pressure, comprise casing (10), described casing (10) bottom is provided with drain pipe (13) and working tubing (15), described drain pipe (13) is provided with blowdown valve (12), it is characterized in that, described working tubing (15) is provided with switching control pilot (5), described casing (10) top is provided with connecting tube (1), connecting tube (1) is provided with restricting orifice group (2), restricting orifice group (2) is connected with prepressing type air filter (3) by spill pipe (4), described side, spill pipe (4) middle part is provided with flow-off (4-1), flow-off (4-1) is connected with return tube (18), described return tube (18) is provided with oil return viewport (17).
2. charge oil pressure according to claim 1 loses little top petrol tank with pressure, it is characterized in that, described restricting orifice group (2) comprises up-hole plate (2-1) and orifice plate (2-3), tunnel tube (2-2) is connected with between described up-hole plate (2-1) and orifice plate (2-3), dynamic seal (packing) flap (2-4) is provided with in described tunnel tube (2-2), flexible support spring (2-6) is connected with under dynamic seal (packing) flap (2-4), described flexible support spring (2-6) lower end is connected with orifice plate (2-3), described dynamic seal (packing) flap (2-4) is provided with throttling pore (2-4.1), gap is there is in described dynamic seal (packing) flap (2-4) with up-hole plate (2-1) bottom, described restricting orifice group (2) orifice restriction from bottom to top, one-way conduction from top to bottom.
3. charge oil pressure according to claim 2 loses little top petrol tank with pressure, it is characterized in that, dynamic seal (packing) flap (2-4) is for discoid, dynamic seal (packing) flap (2-4) edge is symmetrically arranged with two chucking lugs (2-4.2), be provided with two support blocks (2-5) corresponding with two chucking lugs (2-4.2) in described tunnel tube (2-2), the distance between described support block (2-5) and up-hole plate (2-1) bottom is greater than the thickness of chucking lug (2-4.2).
4. charge oil pressure according to claim 1 loses little top petrol tank with pressure, it is characterized in that, described switching control pilot (5) is straight-through valve.
5. charge oil pressure according to claim 1 loses little top petrol tank with pressure, it is characterized in that, described prepressing type air filter (3) is positioned at spill pipe (4) end, prepressing type air filter (3) one-way conduction from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529422.2A CN105156373B (en) | 2015-08-26 | 2015-08-26 | High-level oil tank with pressure and low oil supply pressure losses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510529422.2A CN105156373B (en) | 2015-08-26 | 2015-08-26 | High-level oil tank with pressure and low oil supply pressure losses |
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| Publication Number | Publication Date |
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| CN105156373A true CN105156373A (en) | 2015-12-16 |
| CN105156373B CN105156373B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510529422.2A Active CN105156373B (en) | 2015-08-26 | 2015-08-26 | High-level oil tank with pressure and low oil supply pressure losses |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168233A (en) * | 2016-09-28 | 2016-11-30 | 镇江市科能电力设备有限公司 | A kind of top petrol tank |
| CN106704280A (en) * | 2016-12-30 | 2017-05-24 | 中国重型机械研究院股份公司 | Composite pipe oil tank device and application method |
| CN109281895A (en) * | 2018-11-20 | 2019-01-29 | 中联重科股份有限公司 | Hydraulic oil container and its oil-returning filtering device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034487A1 (en) * | 1980-02-19 | 1981-08-26 | General Signal Corporation | Oil level and flow sensing apparatus for vacuum pump service |
| CN201526793U (en) * | 2009-10-26 | 2010-07-14 | 飞翼集团有限公司 | Oil supply device for emergency of thin oil lubrication station |
| CN102141054A (en) * | 2011-04-26 | 2011-08-03 | 常州液压成套设备厂有限公司 | Pressure oil tank for hydraulic system |
| CN202228632U (en) * | 2011-09-29 | 2012-05-23 | 烟台禹成机械有限公司 | High-level oil tank exhaust and oil return device |
| CN203784610U (en) * | 2014-02-26 | 2014-08-20 | 宝山钢铁股份有限公司 | Power off protection high position oil tank device using compressed air as power |
-
2015
- 2015-08-26 CN CN201510529422.2A patent/CN105156373B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0034487A1 (en) * | 1980-02-19 | 1981-08-26 | General Signal Corporation | Oil level and flow sensing apparatus for vacuum pump service |
| CN201526793U (en) * | 2009-10-26 | 2010-07-14 | 飞翼集团有限公司 | Oil supply device for emergency of thin oil lubrication station |
| CN102141054A (en) * | 2011-04-26 | 2011-08-03 | 常州液压成套设备厂有限公司 | Pressure oil tank for hydraulic system |
| CN202228632U (en) * | 2011-09-29 | 2012-05-23 | 烟台禹成机械有限公司 | High-level oil tank exhaust and oil return device |
| CN203784610U (en) * | 2014-02-26 | 2014-08-20 | 宝山钢铁股份有限公司 | Power off protection high position oil tank device using compressed air as power |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168233A (en) * | 2016-09-28 | 2016-11-30 | 镇江市科能电力设备有限公司 | A kind of top petrol tank |
| CN106704280A (en) * | 2016-12-30 | 2017-05-24 | 中国重型机械研究院股份公司 | Composite pipe oil tank device and application method |
| CN106704280B (en) * | 2016-12-30 | 2018-04-06 | 中国重型机械研究院股份公司 | Multiple tube tank mounting and methods for using them |
| CN109281895A (en) * | 2018-11-20 | 2019-01-29 | 中联重科股份有限公司 | Hydraulic oil container and its oil-returning filtering device |
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|---|---|
| CN105156373B (en) | 2017-01-25 |
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