CN103016934B - Wind-powered lubrication system with pressure buffer - Google Patents
Wind-powered lubrication system with pressure buffer Download PDFInfo
- Publication number
- CN103016934B CN103016934B CN201210514264.XA CN201210514264A CN103016934B CN 103016934 B CN103016934 B CN 103016934B CN 201210514264 A CN201210514264 A CN 201210514264A CN 103016934 B CN103016934 B CN 103016934B
- Authority
- CN
- China
- Prior art keywords
- piston
- pressure
- returnning spring
- wind
- oil pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Wind Motors (AREA)
Abstract
The invention relates to a wind-powered lubrication system with a pressure buffer. The wind-powered lubrication system comprises a dual-speed motor, an electric oil pump, a pressure detection contact, a one-way valve, a filter device, a temperature control valve, an air cooler, a pressure sensor and the pressure buffer, wherein the pressure buffer is connected between an outlet of the electric oil pump and an interface of the filter, a piston type hydraulic cylinder with no piston rod is adopted as the pressure buffer, one side cavity of a piston is communicated with an outlet of the electric oil pump through a pipeline, a reset spring is arranged on the other side cavity, and the cavity with the reset spring is communicated with an interface of a gearbox or a fuel tank. The wind-powered lubrication system has the beneficial effects that the pressure impact peak in low-temperature startup of the wind-powered lubrication system can be reduced effectively, system pressure fluctuations at low temperature and room temperature can be absorbed, and the performance of the device for safety use can be improved; the pressure buffer has a simple structure, can be conveniently installed and is suitable for series mass production; and the work interval is large and cannot be affected by the ambient temperature.
Description
Technical field
The invention belongs to the pressure buffer of hydraulic system, particularly relate to wind-powered electricity generation lubrication system pressure buffer.
Background technique
Wind power plant operating ambient temperature alters a great deal, during low-temperature working, ambient temperature can reach-30 DEG C, wind turbine gearbox oil cooling lubrication system also usually can in oil temperature about-10 DEG C startup, and now oil body is very high, also can be very high even if electric oil pump low speed start runs its pressure starting moment, usually can reach about 2MPa, such instantaneous pressure impact can bring harm to lubrication system, the rate of fault of increase system, reduces the safety reliability of lubrication system.
At present, the phenomenon that lubrication system generation oil pump motor, coupling etc. that the wind-powered electricity generation lubrication system of domestic use comprises many imports damage is more, and this and cold-starting lubrication system oil pump and compression shock have much relations.Therefore, development can reduce the pressure buffer that instantaneous pressure impacts is related domain technical barrier urgently to be resolved hurrily.
Summary of the invention
The object of the invention is to develop a kind of wind-powered electricity generation lubrication system pressure buffer, the instantaneous pressure reduced when electric oil pump starts at low temperatures impacts, reduce the peak-peak of impacting, reduce the rate of fault reducing lubrication system, improve the Security of lubrication system works, reliability and stationarity.
Technological scheme of the present invention is: a kind of wind-powered electricity generation lubrication system with pressure buffer, comprises two-speed motor, electric oil pump, Pressure testing contact, one-way valve, filter for installation, heat-operated valve, forced air cooler, pressure transducer, pressure buffer and gear-box, be electrically connected between two-speed motor and electric oil pump, electric oil pump and one-way valve, connected by pipeline between filter for installation and forced air cooler, Pressure testing contact is connected with pressure-detecting device, heat-operated valve is connected with between the entrance and exit of forced air cooler, forced air cooler is connected with pressure transducer, pressure buffer is connected to electric oil pump outlet and gear-box interface or electric oil pump (9) and exports between fuel tank interface, and pressure buffer comprises by housing, Combined seal ring of piston, piston, Returnning spring, the piston-type hydraulic cylinder of end bracket enclosed circle and end cap composition, the chamber, side of piston-type hydraulic cylinder piston is communicated with electric oil pump export pipeline, and the chamber of Returnning spring and gear-box or fuel tank orifice, built with Returnning spring, are equipped with in opposite side chamber, the housing of pressure buffer is tubular, and bottom centre position place has the connection mouth be connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system, the inner center portion of described end cap is with shaft-like platform, the center hole at through two ends is opened in shaft-like platform center portion, mouth outside center hole end cap is the gear-box interface connection mouth with wind-powered electricity generation lubrication system, and end bracket enclosed is connected to housing opening end, in end cap, shaft-like platform has draining mechanism, described piston is not with piston rod, piston is arranged in housing by Combined seal ring of piston, and the initial position that piston is installed is in the bottom of housing, and described Returnning spring is arranged in the housing between piston and end cap, Returnning spring one end and piston end surface connect, and the other end and end cap connect, it is characterized in that described piston is provided with stroke pin, described stroke pin central position has the hole of through both ends of the surface, stroke pin external diameter is identical with shaft-like platform external diameter in end cap, stroke pin is fixedly mounted on piston and Returnning spring connects in the pin-and-hole of center, face, the spacing in end face and the inner shaft-like you face of end cap is s, 0 < s≤p* π * d
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value gets 0.7MPa ~ 2.8MPa, and d is piston diameter, and k is the rigidity of Returnning spring (5), S
0for initial compression amount after Returnning spring (5) assembling.
Pressure buffer for the wind-powered electricity generation lubrication system with pressure buffer of the present invention, it is characterized in that the guidance mode of described Returnning spring is outer guiding or interior guiding, described outer guiding is that between the excircle of Returnning spring and inner walls, total backlash is 0.8mm ~ 1.0mm, is led by Returnning spring excircle and inner walls; Described interior guiding is, in end cap, shaft-like platform is equipped with guide sleeve, guide sleeve to be sleeved in end cap on shaft-like platform, guide sleeve front end is stretched in the stroke pin pin-and-hole of piston, guide sleeve inner circle is sleeved on stroke pin, guide sleeve ear end face abuts against on end cap, s distance is had, 0 < s≤p* π * d between the stroke pin pin-and-hole bottom surface of front-end face and piston
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value is 0.7MPa ~ 2.8MPa, d is piston diameter, and k is the rigidity of Returnning spring, S
0for initial compression amount after Returnning spring assembling, Returnning spring is placed in outside guide sleeve, and between the inner circumference of Returnning spring and guide sleeve excircle, total backlash is 0.5mm ~ 0.6mm, is led by Returnning spring inner circumference and guide sleeve excircle.
Pressure buffer for the wind-powered electricity generation lubrication system with pressure buffer of the present invention, it is characterized in that the draining mechanism in described end cap on shaft-like platform is oil leak hole or drain pan, oil leak hole or drain pan communicate with the center hole of axle.
Pressure buffer for the wind-powered electricity generation lubrication system with pressure buffer of the present invention, is characterized in that described Returnning spring is belleville spring.
During use, be connected by the connection mouth of housing bottom with the electric oil pump export pipeline of wind-powered electricity generation lubrication system, the connection mouth on end cap is connected with the gear-box interface of wind-powered electricity generation lubrication system.Wind-powered electricity generation lubrication system is at cold-starting
During operation, when electric oil pump outlet pressure reaches more than 0.7MPa, namely as the active force p* π * d of fuel pump outlet pressure p on wind-powered electricity generation lubrication system pressure buffer piston 4
2/ 4 ﹥ k (S
0+ s) time, a small amount of lubricant oil can enter wind-powered electricity generation lubrication system pressure buffer promotion piston 4 and move to right, and the stroke of the larger piston of p 4 is larger.As p* π * d
2/ 4 ﹤ k (S
0+ s) time, the energy moved to right stored by Compress Spring due to piston 4 will discharge, and piston 4 be moved to left and be sent back in system by the pressure oil entered.In this course, wind-powered electricity generation lubrication system pressure buffer absorbs the spike pressure of system moment, reduces the peak value of system pressure.
The invention has the beneficial effects as follows:
8. compression shock peak value when this system effectively reduces wind-powered electricity generation lubrication system cold-starting, absorbs the fluctuation of system pressure under low temperature and normal temperature, improves the safe application performance of equipment;
9. pressure buffer operation interval is large, and compensator or trimmer pressure action range can reach between 0.7MPa ~ 2.8MPa, maximum service pressure 5MPa.
10. pressure buffer is not by the impact of ambient temperature;
11. pressure buffer structures are simple, are convenient to install, and are applicable to seriation batch production;
12. pressure buffers take into full account oil draining function, and flexible movements are reliable;
13. pressure buffer housings and end cap are applicable to adopting cast steel, are convenient to seriation and batch production;
14. pressure buffer sealings adopt low temperature material, and survival temperature reaches-45 DEG C ~ 120 DEG C, and serviceability temperature is-30 DEG C ~ 100 DEG C.
Accompanying drawing explanation
The present invention has four width accompanying drawings.Wherein:
Fig. 1 is the wind-powered electricity generation lubrication system schematic diagram of band pressure buffer
Fig. 2 is pressure buffer structural representation
Fig. 3 is the pressure buffer structural representation that Returnning spring leads outward
Fig. 4 is the pressure buffer structural representation of guiding in Returnning spring
Drawing reference numeral illustrates:
1. housing 2. seal ring 3. Combined seal ring of piston 4. piston 5. Returnning spring 6. end bracket enclosed circle 7. end cap 8. two-speed motor 9. electric oil pump 10. Pressure testing contact 11. one-way valve 12. sebific duct 13. filter for installation 14. heat-operated valve 15. forced air cooler 16. pressure transducer 17. wind-powered electricity generation lubrication system pressure buffer 18. stroke pin 19. guide sleeve
Embodiment
Below in conjunction with the embodiment of accompanying drawing, the invention will be further described.
Wind-powered electricity generation lubrication system, comprise two-speed motor 8, electric oil pump 9, Pressure testing contact 10, one-way valve 11, filter for installation 13, heat-operated valve 14, forced air cooler 15, pressure transducer 16 and pressure buffer 17, be electrically connected between two-speed motor 8 and electric oil pump 9, electric oil pump 9 is connected by pipeline with one-way valve 11, filter for installation 13 and forced air cooler 15, and Pressure testing contact 10 is connected with Pressure testing dress
Put, heat-operated valve 14 is connected with between the entrance and exit of forced air cooler 15, forced air cooler 15 is connected with pressure transducer 16, pressure buffer 17 is piston-type hydraulic cylinders, the oil pocket of piston-type hydraulic cylinder is communicated with electric oil pump 9 export pipeline, the spring chamber of piston-type hydraulic cylinder and gear-box orifice.
Pressure buffer comprises the piston-type hydraulic cylinder be made up of housing 1, seal ring 2, Combined seal ring of piston 3, piston 4, Returnning spring 5, end bracket enclosed circle 6 and end cap 7, housing 1 is tubular, and bottom centre position has the connection mouth be connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system; The inner center portion of end cap 7 is with shaft-like platform, through two ends center hole is established in shaft-like platform center portion, mouth outside the end cap of center hole is the gear-box interface connection mouth with wind-powered electricity generation lubrication system, end cap 7 is sealedly connected on housing 1 opening end, in end cap 7, shaft-like platform has draining mechanism, draining mechanism is oil leak hole or drain pan, and oil leak hole or drain pan communicate with the center hole of shaft-like platform.Piston 4 piston-rodless, piston 4 is arranged in housing 1 by Combined seal ring of piston 3, and the initial position that piston 4 is installed is at housing bottom, and Returnning spring 5 is arranged in the housing between piston 4 and end cap 7, Returnning spring 5 one end and piston 4 end face connect, and the other end and end cap 7 connect.
Embodiment 1 is the embodiment that the Returnning spring of pressure buffer leads outward, as shown in Figure 3.Piston 4 is provided with stroke pin 18, stroke pin 18 central position has the hole of through both ends of the surface, aperture is identical with the inner axle center hole aperture of end cap, stroke pin 18 is fixedly mounted on piston 4 and connects in the pin-and-hole of center, face with Returnning spring 5, in end face and end cap 7, the spacing in shaft-like you face is s, 0 < s≤p* π * d
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value is 0.7MPa ~ 2.8MPa, d is piston (4) diameter, and k is the rigidity of Returnning spring 5, S
0for initial compression amount after Returnning spring (5) assembling.Returnning spring 5 is butterfly springs, and between butterfly spring excircle and inner walls, total backlash is 0.8mm ~ 1.0mm, is led by Returnning spring excircle and inner walls.
Embodiment 2 is the embodiments led in the Returnning spring of pressure buffer, as shown in Figure 4.
Piston is provided with the stroke pin identical with embodiment 1.Guide sleeve 19 is equipped with in end cap, shaft-like platform, guide sleeve 19 to be sleeved in end cap on shaft-like platform, guide sleeve 19 front end is stretched in stroke pin 18 pin-and-hole of piston 4, guide sleeve 19 inner circle is enclosed within stroke pin, guide sleeve 19 ear end face abuts against on end cap 7, s distance is had, 0 < s≤p* π * d between the stroke pin pin-and-hole bottom surface of front-end face and piston
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value is 0.7MPa ~ 2.8MPa, d is piston diameter, and k is the rigidity of Returnning spring, S
0for initial compression amount after Returnning spring assembling, Returnning spring 5 is placed in outside guide sleeve 19.Returnning spring 5 is butterfly springs, and between butterfly spring inner circumference and guide sleeve excircle, total backlash is 0.5mm ~ 0.6mm, is led by Returnning spring inner circumference and guide sleeve excircle.
When wind-powered electricity generation lubrication system is run at cold-starting, at low speed and driving electric oil pump 9 pressure oil output of two-speed motor 8, because low-temperature condition oil body is very high, system pressure is by the impact of the damping such as filter for installation 13 and fuel nozzle, electric oil pump 9 outlet pressure sharply rises and will open one-way valve 11, but one-way valve 11 negotiability is at high viscosities limited and the opening time is corresponding delayed to some extent, and therefore system pressure instantaneously can be very high.When pump discharge pressure reaches more than 0.7MPa, namely as the active force p* π * d of fuel pump outlet pressure p on wind-powered electricity generation lubrication system pressure buffer piston 4
2/ 4 ﹥ k (S
0+ s) time, a small amount of lubricant oil can enter pressure buffer promotion piston 4 and move to right, and the stroke of the larger piston of p 4 is larger.After the pressure of lubrication system reduces, i.e. p* π * d
2/ 4 ﹤ k (S
0+ s) time, the energy moved to right stored by Compress Spring due to piston 4 will discharge, and piston 4 be moved to left and be sent back in system by a part of pressure oil.In this process, pressure buffer absorbs the spike pressure of system moment, reduce the peak value of system pressure, and the pressure pulsation that oil pump produces can be absorbed, effectively can reduce the rate of fault of wind-powered electricity generation lubrication system equipment, raising low temperature and normal temperature state divide into standby traveling comfort and safety reliability.
Claims (2)
1. the wind-powered electricity generation lubrication system with pressure buffer, comprise two-speed motor (8), electric oil pump (9), Pressure testing contact (10), one-way valve (11), filter for installation (13), heat-operated valve (14), forced air cooler (15), pressure transducer (16), pressure buffer (17) and gear-box, be electrically connected between two-speed motor (8) and electric oil pump (9), electric oil pump (9) and one-way valve (11), connected by pipeline between filter for installation (13) and forced air cooler (15), Pressure testing contact (10) is connected with pressure-detecting device, heat-operated valve (14) is connected with between the entrance and exit of forced air cooler (15), forced air cooler (15) is connected with pressure transducer (16), pressure buffer (17) is connected to electric oil pump (9) outlet and gear-box interface or electric oil pump (9) and exports between fuel tank interface, pressure buffer (17) comprises by housing (1), Combined seal ring of piston (3), piston (4), Returnning spring (5), the piston-type hydraulic cylinder that end bracket enclosed circle (6) and end cap (7) form, the chamber, side of piston-type hydraulic cylinder piston is communicated with electric oil pump (9) export pipeline, opposite side chamber is built with Returnning spring (5), the chamber of Returnning spring and gear-box or fuel tank orifice are housed, the housing (1) of pressure buffer is tubular, and bottom centre position place has the connection mouth be connected with the electric oil pump export pipeline of wind-powered electricity generation lubrication system, described end cap (7) inner center portion is with shaft-like platform, the center hole at through two ends is opened in shaft-like platform center portion, mouth outside center hole end cap is the gear-box interface connection mouth with wind-powered electricity generation lubrication system, end cap (7) is sealedly connected on housing (1) opening end, and the interior shaft-like platform of end cap (7) has draining mechanism, described piston (4) is not with piston rod, piston (4) is arranged in housing by Combined seal ring of piston (3), the initial position that piston is installed is in the bottom of housing, described Returnning spring (5) is arranged in the housing (1) between piston (4) and end cap (7), Returnning spring (5) one end and piston end surface connect, and the other end and end cap connect, it is characterized in that described piston (4) is provided with stroke pin (18), described stroke pin (18) central position has the hole of through both ends of the surface, stroke pin external diameter is identical with shaft-like platform external diameter in end cap, stroke pin (18) is fixedly mounted on piston (4) and connects in the pin-and-hole of center, face with Returnning spring (5), the spacing in end face and end cap (7) inner shaft-like you face is s, 0 < s≤p* π * d
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value gets 0.7MPa ~ 2.8MPa, and d is piston (4) diameter, and k is the rigidity of Returnning spring (5), S
0for initial compression amount after Returnning spring (5) assembling.
2. a kind of wind-powered electricity generation lubrication system with pressure buffer according to claim 1, it is characterized in that the guidance mode of the Returnning spring (5) of described pressure buffer (17) is outer guiding or interior guiding, described outer guiding is that the excircle of Returnning spring (5) and housing (1) inwall keep 0.8mm ~ 1.0mm gap, and namely Returnning spring excircle is led by inner walls; Described interior guiding shaft-like platform is equipped with guide sleeve (19) in end cap, guide sleeve (19) is sleeved on the interior shaft-like platform of end cap (7), guide sleeve (19) front end is stretched in the stroke pin pin-and-hole of piston (4), guide sleeve inner circle is sleeved on stroke pin (18), guide sleeve (19) ear end face abuts against on end cap (7), s distance is had, 0 < s≤p* π * d between the stroke pin pin-and-hole bottom surface of front-end face and piston
2/ 4k-S
0, in formula, p is the electric oil pump outlet pressure of wind-powered electricity generation lubrication system, and p value gets 0.7MPa ~ 2.8MPa, and d is piston (4) diameter, and k is the rigidity of Returnning spring (5), S
0for initial compression amount after Returnning spring (5) assembling, Returnning spring (5) is placed in guide sleeve (20) outward, inner circumference and guide sleeve (19) excircle of Returnning spring (5) keep 0.5mm ~ 0.6mm gap, are led by guide sleeve excircle and Returnning spring inner circumference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514264.XA CN103016934B (en) | 2012-12-04 | 2012-12-04 | Wind-powered lubrication system with pressure buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210514264.XA CN103016934B (en) | 2012-12-04 | 2012-12-04 | Wind-powered lubrication system with pressure buffer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103016934A CN103016934A (en) | 2013-04-03 |
| CN103016934B true CN103016934B (en) | 2015-06-10 |
Family
ID=47965854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210514264.XA Active CN103016934B (en) | 2012-12-04 | 2012-12-04 | Wind-powered lubrication system with pressure buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103016934B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666416B (en) * | 2015-05-06 | 2017-06-27 | 周瑞丽 | A kind of cooling device of pneumatic nail gun cushion pad |
| CN104786201B (en) * | 2015-05-06 | 2016-08-24 | 周瑞丽 | A kind of chiller of pneumatic nail gun cushion pad |
| CN106089604A (en) * | 2016-08-10 | 2016-11-09 | 大连东鼎工业设备有限公司 | A kind of lubricating system solving blower fan limit power |
| CN110470582B (en) * | 2019-08-16 | 2021-08-03 | 邯郸市威源节能环保科技有限公司 | Automobile filter monitoring device based on negative pressure monitoring |
| CN112139414B (en) * | 2020-09-09 | 2022-08-19 | 浙江恒鼎机械有限公司 | Forging system and forging method for hub flange plate |
| CN112283328B (en) * | 2020-11-04 | 2022-04-12 | 福建中维动力科技股份有限公司 | Oil pump transfer case for pure electric truck |
| CN113062831B (en) * | 2021-04-12 | 2022-04-19 | 南通理工学院 | Power generation device for new energy hybrid power ship |
| CN114458933A (en) * | 2021-12-27 | 2022-05-10 | 大连橡胶塑料机械有限公司 | Intelligence banbury mixer lubricating system that economizes on fuel |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2285328A1 (en) * | 1998-02-04 | 1999-08-12 | Barnes Group Inc. | Self-lubricating fluid cylinder |
| FR2903757A1 (en) * | 2006-07-11 | 2008-01-18 | Snecma Sa | Lubricating oil collection circuit for e.g. turbine, has pump that communicates with bearing housing by using buffer oil reservoir, where reservoir is provided in grid that performs oil de-aeration function |
| CN101290037A (en) * | 2007-04-19 | 2008-10-22 | 株式会社日立制作所 | Damping force adjustable fluid pressure shock absorber |
| CN201381952Y (en) * | 2009-04-30 | 2010-01-13 | 哈尔滨哈飞工业有限责任公司 | Wind turbine generator system gear box lubricating system |
| CN201386626Y (en) * | 2009-04-09 | 2010-01-20 | 中船重工(重庆)海装风电设备有限公司 | Cooling device for low-temperature wind-driven generator |
| CN201461614U (en) * | 2009-07-22 | 2010-05-12 | 新乡豫新车辆换热设备股份有限公司 | Pressure damper |
| CN101806291A (en) * | 2009-06-05 | 2010-08-18 | 王延忠 | Wind power generation actuating device |
| CN101979872A (en) * | 2010-10-22 | 2011-02-23 | 大连华锐股份有限公司 | Lubricating system for gear box of wind generating set |
| CN202531810U (en) * | 2012-04-25 | 2012-11-14 | 重庆齿轮箱有限责任公司 | Low-temperature lubricating system for offshore high-power wind power gearbox |
| CN203099280U (en) * | 2012-12-04 | 2013-07-31 | 大连华锐重工集团股份有限公司 | Wind power lubricating system |
-
2012
- 2012-12-04 CN CN201210514264.XA patent/CN103016934B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2285328A1 (en) * | 1998-02-04 | 1999-08-12 | Barnes Group Inc. | Self-lubricating fluid cylinder |
| FR2903757A1 (en) * | 2006-07-11 | 2008-01-18 | Snecma Sa | Lubricating oil collection circuit for e.g. turbine, has pump that communicates with bearing housing by using buffer oil reservoir, where reservoir is provided in grid that performs oil de-aeration function |
| CN101290037A (en) * | 2007-04-19 | 2008-10-22 | 株式会社日立制作所 | Damping force adjustable fluid pressure shock absorber |
| CN201386626Y (en) * | 2009-04-09 | 2010-01-20 | 中船重工(重庆)海装风电设备有限公司 | Cooling device for low-temperature wind-driven generator |
| CN201381952Y (en) * | 2009-04-30 | 2010-01-13 | 哈尔滨哈飞工业有限责任公司 | Wind turbine generator system gear box lubricating system |
| CN101806291A (en) * | 2009-06-05 | 2010-08-18 | 王延忠 | Wind power generation actuating device |
| CN201461614U (en) * | 2009-07-22 | 2010-05-12 | 新乡豫新车辆换热设备股份有限公司 | Pressure damper |
| CN101979872A (en) * | 2010-10-22 | 2011-02-23 | 大连华锐股份有限公司 | Lubricating system for gear box of wind generating set |
| CN202531810U (en) * | 2012-04-25 | 2012-11-14 | 重庆齿轮箱有限责任公司 | Low-temperature lubricating system for offshore high-power wind power gearbox |
| CN203099280U (en) * | 2012-12-04 | 2013-07-31 | 大连华锐重工集团股份有限公司 | Wind power lubricating system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103016934A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103016934B (en) | Wind-powered lubrication system with pressure buffer | |
| CN102963345B (en) | Driven hydraulic-brake hydraulic system with velocity compensator | |
| CN204846363U (en) | Aircraft oil air spring formula shimmy damper device | |
| CN203099280U (en) | Wind power lubricating system | |
| CN103321975B (en) | A kind of low-high pressure soft start hydraulic oil source system | |
| CN102748525A (en) | Ball valve servomotor with hydraulic locking device | |
| CN103206325B (en) | A kind of fuel pump with safety valve | |
| CN103486317A (en) | Weighted hydraulic control butterfly valve | |
| CN112253435B (en) | High-performance high-pressure reciprocating pump | |
| CN205001264U (en) | High pressure air spring | |
| CN205315203U (en) | Hydraulic turbine speed adjusting device | |
| CN211820994U (en) | Water hammer prevention front valve | |
| CN107642474B (en) | High-sealing secondary high-pressure pump | |
| CN202944328U (en) | Hydraulic system with speed compensator of passive hydraulic brake | |
| CN203175727U (en) | Fuel pump with safety valve | |
| CN205823582U (en) | Oil level controllers | |
| CN202228337U (en) | Empty absorbing preventing device for plunger pump | |
| CN201693796U (en) | Multipurpose pressure device | |
| CN202251148U (en) | Hydraulic low energy consumption system | |
| CN208778163U (en) | Impeller piston formula air compressor cylinder | |
| CN220248520U (en) | Hydraulic assembly of steam turbine | |
| CN203742989U (en) | Compressed air self-making device of automobile | |
| CN202845085U (en) | Hydraulic overturning device for vertical mill | |
| CN203460264U (en) | Self-rotating water jet cutting device | |
| CN203460263U (en) | Rotary high-pressure gas cutting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |