CN104071322B - Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system - Google Patents
Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system Download PDFInfo
- Publication number
- CN104071322B CN104071322B CN201410218858.5A CN201410218858A CN104071322B CN 104071322 B CN104071322 B CN 104071322B CN 201410218858 A CN201410218858 A CN 201410218858A CN 104071322 B CN104071322 B CN 104071322B
- Authority
- CN
- China
- Prior art keywords
- pipeline
- propeller hub
- oil
- hydraulic pressure
- reversing
- 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
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 45
- 239000003921 oil Substances 0.000 claims abstract description 157
- 239000010687 lubricating oil Substances 0.000 claims abstract description 35
- 238000000605 extraction Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 31
- 230000005484 gravity Effects 0.000 claims description 25
- 238000003860 storage Methods 0.000 claims description 14
- 238000001556 precipitation Methods 0.000 claims description 9
- 235000019994 cava Nutrition 0.000 claims description 3
- 238000005461 lubrication Methods 0.000 abstract description 8
- 230000004044 response Effects 0.000 abstract description 8
- 238000013461 design Methods 0.000 abstract description 3
- 230000006872 improvement Effects 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000000314 lubricant Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000013535 sea water Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- General Details Of Gearings (AREA)
Abstract
The invention discloses a kind of self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system, described adjustable pitch oar hydraulic pressure and lubricating system include: hydraulic pressure unit, positive car pipeline, reversing pipeline, throttle orifice and extraction pipeline.The conducting of described hydraulic pressure unit is connected to the in-oil cylinder positive car chamber of described propeller hub, the conducting of described hydraulic pressure unit is connected to the in-oil cylinder reversing chamber of described propeller hub, the conducting of described throttle orifice is connected between described reversing chamber and described propeller hub inner chamber, and one end conducting of described extraction pipeline is connected on described propeller hub inner chamber.Described self-lubricating adjustable pitch oar includes: propeller hub, propeller hub oil cylinder, propeller hub dividing plate, hollow gear case axle, blade, guiding mechanism and above-mentioned adjustable pitch oar hydraulic pressure and lubricating system.Present configuration design is ingenious, and propeller hub inner chamber is carried out dynamically lubricating, meets hydraulic pressure and the lubrication needs of adjustable pitch oar simultaneously, and makes the lubricating oil of propeller hub inner chamber can the response time of effectively current lubrication and effective lifting pitch.
Description
Technical field
The technical field of the adjustable pitch oar design that the present invention relates to, especially relates to a kind of self-lubricating adjustable pitch oar that propeller blade for ship bearing block and other propeller hub internal moving parts are lubricated and adjustable pitch oar hydraulic pressure thereof and lubricating system.
Background technology
Adjustable pitch propeller peculiar to vessel is also known as adjustable pitch oar, it can change ship's speed by adjustment pitch, realize the ahead and astern of boats and ships, it is possible to coupling main frame or the different rotating speed of motor, so that boats and ships and reach good fuel efficiency and operability under various different operating modes.As it is shown in figure 1, figure mono-shows the adjustable pitch slurry being arranged in hull and drives.This adjustable pitch slurry includes propeller hub and blade, an electromotor be driven via gear-box and propeller shaft.
Some parts necessarily moving component in propeller hub is determined due to the adjustable characteristic of blade angle.It is accomplished by being sent in propeller hub and blade bearing in order to avoid these moving components produce corrosion and undue wear, lubricating oil or other greasing substances in interaction process.
At present, the lubrication of known adjustable pitch oar propeller hub is to open hole by tailing axle flange propeller hub is connected with stern pipe, stern pipe hydraulic oil is introduced propeller hub or increases the access way of propeller hub oil on the dispenser.But it is static lubrication that propeller hub introduces stern pipe hydraulic oil mode, it is impossible to effectively taking the internal impurity of propeller hub out of and propeller hub oil is detected, life-time service can increase the weight of the abrasion of propeller hub internal part；Oil distributor increase is entered the mode of oil discharge passage and is made oil distributor structure complicated, increase the probability and maintenance difficulties that break down, and the two-way pipeline increased can take hollow axle inner space, reduces the valid circulation area of ahead and astern pressure oil, thus have impact on pitch response time.
Therefore, the applicant is devoted to develop a kind of self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system, overcome existing adjustable pitch oar propeller hub lubricant effect undesirable and the not rapid defect of pitch response time, realization can make lubricating oil in propeller hub effectively flow, improve propeller hub lubricant effect, the goal of the invention of pitch response time can also be promoted simultaneously.
Summary of the invention
In view of the deficiency that above-mentioned prior art exists, the present invention proposes a kind of self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system, overcome existing adjustable pitch oar propeller hub lubricant effect undesirable and the not rapid defect of pitch response time, realization can make lubricating oil in propeller hub effectively flow, improve propeller hub lubricant effect, the goal of the invention of pitch response time can also be promoted simultaneously.
For reaching above-mentioned purpose, the invention provides a kind of adjustable pitch oar hydraulic pressure and lubricating system, including: for the hydraulic pressure unit of hydraulic oil conveying, for the positive car pipeline of hydraulic oil conveying in car chamber positive in propeller hub oil cylinder, for the reversing pipeline of hydraulic oil conveying in chamber of moveing backward in propeller hub oil cylinder, the throttle orifice of lubricating oil and the extraction pipeline for being drawn by the lubricating oil of described propeller hub inner chamber it is used as the hydraulic oil in described reversing chamber being released to propeller hub inner chamber.
Described hydraulic pressure unit is connected to the in-oil cylinder positive car chamber of described propeller hub by the conducting of described positive car pipeline, described hydraulic pressure unit is connected to the in-oil cylinder reversing chamber of described propeller hub by the conducting of described reversing pipeline, the conducting of described throttle orifice is connected between described reversing chamber and described propeller hub inner chamber, and one end conducting of described extraction pipeline is connected on described propeller hub inner chamber.
As a further improvement on the present invention, described reversing pipeline and described positive car pipeline form double-jacket tube structure, described reversing pipeline is as trocar sheath, described positive car pipeline is as inner sleeve, described reversing pipeline is set on described positive car pipeline, described positive car pipeline is directly conducted in described propeller hub oil cylinder in positive car chamber, the end seal that described reversing pipeline is in described propeller hub oil cylinder in positive car chamber, all sides of described reversing pipeline turn on and be connected in described propeller hub oil cylinder to move backward in chamber.
As a further improvement on the present invention, the axis of described positive car pipeline and described reversing pipeline overlaps.
As a further improvement on the present invention, described positive car pipeline is formed by connecting by the pipeline of two or more, described reversing pipeline is formed by connecting by the pipeline of two or more, the number of tubes that described positive car pipeline and described reversing pipeline adopt is equal, and adjacent channel junction adopts adapter assembly to dock.
Described adapter assembly includes male joint and female joint, being formed with the first step for sheathed described positive car pipeline and the second step for sheathed described reversing pipeline on the joint link of described male joint, described first step is formed by outwardly convex in the middle part of the outer face of described second step；The joint link of described female joint is identical with the structure of the joint link of described male joint, described male joint and described female joint are detachably connected as a whole, the opposing setting of joint link of the joint link of male joint and female joint, the step surface of the first step of described male joint offer for turning on, with described positive car pipeline, the internal oil passages passage being connected towards the step surface of the first step of described female joint is through, the step surface of the second step of described male joint offers for turning on, with described reversing pipeline, the outside oil circuit duct being connected towards through on the step surface of the second step of described female joint.
As a further improvement on the present invention, all lateral projections of the first step of described male joint are provided with O RunddichtringO, and described positive car pipeline directly seals noose on all sides of the first step of described male joint；And/or, all lateral projections of the first step of described female joint are provided with O RunddichtringO, and another positive car pipeline directly seals noose on all sides of the first step of described female joint；And/or, all sides of the second step of described male joint are formed helicitic texture, described reversing pipeline is threaded on all sides of the second step of described male joint；And/or, all sides of the second step of described female joint are formed helicitic texture, another reversing pipeline is threaded on all sides of second step of described male joint；And/or, the protruding link that described male joint is used for removably connecting with described female joint is formed with the 3rd step and the 4th step, described 3rd step is formed by outwardly convex in the middle part of the outer face of described 4th step, the female connecting end that described female joint is used for removably connecting with described male joint is formed with the first groove and the second groove, described first groove caves inward in the middle part of the inner face by described second groove and is formed, described 3rd step seals and is arranged in described first groove, described 4th step is sealedly connected in described second groove, internal oil passages passage in described male joint is docked on the internal oil passages passage of described female joint by the step surface of described 3rd step, outside oil circuit duct in described male joint is docked on the outside oil circuit duct of described female joint by the step surface of described 4th step；And/or, the quantity of described internal oil passages passage is 1, and the quantity in described outside oil circuit duct is 2-20 bar.
As a further improvement on the present invention, described adjustable pitch serosity pressure and lubricating system also include: for storing the gravity oil tank of the lubricating oil of the described propeller hub inner chamber that described fairlead pass goes out, one end conducting of described extraction pipeline is connected on described propeller hub inner chamber, the other end conducting of described extraction pipeline is connected on described gravity oil tank, and the conducting of described gravity oil tank is connected on described hydraulic pressure unit.
As a further improvement on the present invention, being divided into oil suction chamber by a weir divider in described gravity oil tank and goes out oil pocket, described extraction pipeline turns on described oil suction chamber, described gravity oil tank by described go out oil pocket turn on described hydraulic pressure unit and to be connected.
As a further improvement on the present invention, described hydraulic pressure unit includes oil storage tank, hydraulic pump, electromagnetic valve group and oil dispenser, described oil storage tank is connected in described electromagnetic valve group by described hydraulic pump, described electromagnetic valve group connects described oil dispenser by the described positive car pipeline described positive car chamber of connection corresponding to described reversing pipeline and described reversing chamber, and the conducting of described gravity oil tank is connected to described oil storage tank.
As a further improvement on the present invention, described extraction pipeline is provided with for the lubricating oil derived being carried out the precipitation defecator that precipitation filters.
nullThe invention allows for a kind of self-lubricating adjustable pitch oar，Including propeller hub、Propeller hub oil cylinder、Propeller hub dividing plate、Hollow gear case axle、Blade、Guiding mechanism and adjustable pitch serosity are pressed and lubricating system，Described hollow gear case axle connects described propeller hub，The outer circumferential side of described propeller hub is provided with some blades，Described propeller hub be internally formed propeller hub inner chamber，Described adjustable pitch oar hydraulic pressure and lubricating system connect described propeller hub oil cylinder，Described propeller hub oil cylinder includes cylinder body、Piston and hollow piston connecting rod，Described cylinder body is arranged on the end face that described propeller hub is opposing with described hollow gear case axle，Separated by described propeller hub dividing plate and described propeller hub inner chamber，Described piston is arranged in described cylinder body，Described cylinder body is divided into positive car cavity and reversing cavity，Described hollow piston connecting rod one end is connected on described piston，The other end stretches into described propeller hub inner chamber through described propeller hub dividing plate，Described guiding mechanism is connected on described blade and described hollow piston connecting rod，Described hollow piston connecting rod drives described blade to carry out pitch adjustment by described guiding mechanism.Wherein, adjustable pitch serosity of the present invention pressure and lubricating system are aforesaid adjustable pitch serosity pressure and lubricating system, described positive car pipeline and described reversing pipeline wear along described hollow gear case axle and described the axially extending of hollow piston connecting rod, the conducting of described throttle orifice is arranged on described propeller hub dividing plate, described reversing chamber and described propeller hub inner chamber carries out conducting and arranges.
Having the beneficial effect that of the self-lubricating adjustable pitch oar of the present invention and adjustable pitch oar hydraulic pressure thereof and lubricating system:
1. the self-lubricating adjustable pitch oar of the present invention and adjustable pitch oar hydraulic pressure thereof and lubrication system architecture design are ingenious, carry out in the process that hydraulic work adjusts pitch at propeller hub oil cylinder, utilize throttle orifice to be pumped into by the hydraulic oil in described reversing chamber propeller hub inner chamber to be used as lubricating oil the paddle shaft bearing in propeller hub inner chamber, guiding mechanism and other propeller hub internal moving parts are carried out dynamically lubricating, meet hydraulic pressure and the lubrication needs of adjustable pitch oar simultaneously, and make the lubricating oil of propeller hub inner chamber can effectively current lubrication and the effective response time promoting pitch.
2. the self-lubricating adjustable pitch oar of the present invention and two-way fluid pressure line (positive car pipeline and the reversing pipeline) combination of adjustable pitch oar hydraulic pressure and lubricating system thereof form double-jacket tube structure, turned on by all sides of described reversing pipeline and be connected in described propeller hub oil cylinder to move backward in chamber, and utilize the hydraulic oil in reversing chamber to be conducted in propeller hub inner chamber by throttle orifice, avoid the passage being further added by a road supply propeller hub inner chamber lubricating oil by hydraulic pressure unit, simplify system structure, add the valid circulation area of double-jacket tube structure, and be conducive to the recycling of hydraulic oil and lubricating oil.
3. the present invention devises and constructs, for double-jacket tube, the adapter assembly connected between each pipeline section, achieve effectively as a whole for multiple pipeline sections composition, not only ensure that positive car pipeline and the effective discharge of reversing pipeline, adapter assembly can also play the effect supporting pipeline simultaneously, simplify the structure of integral joint, assembling process avoids the operation of welding, effectively improves packaging efficiency, is very suitable on adjustable pitch oar and applies.
4. the present invention has added gravity oil tank, and the height placed by calculating gravity oil tank can ensure that the lubricating oil of propeller hub inner chamber is with the rational pressure reduction of external sea water, is further ensured that the sealing property that propeller hub is good.
5. the present invention adds weir divider in gravity oil tank and is divided into oil suction chamber and go out oil pocket, described extraction pipeline is turned on described oil suction chamber, by described go out the conducting of oil pocket and described oil storage tank is connected, formation Efficient Cycle, and described oil suction chamber can guarantee that lasting pressure feed propeller hub inner chamber simultaneously.
6. the present invention is also convenient for lubricating oil is monitored, and then learns the ruuning situation of adjustable pitch oar.
Accompanying drawing explanation
Fig. 1 is conventional adjustable pitch oar propulsion system layout drawing peculiar to vessel.
Fig. 2 is the structural representation of specific embodiment self-lubricating adjustable pitch oar.
Fig. 3 is the A place total cross-section organigram of Fig. 2.
Fig. 4 is the B place total cross-section organigram of Fig. 2.
Fig. 5 is the structural representation of specific embodiment adapter assembly.
Fig. 6 is the organigram of specific embodiment male joint.
Fig. 7 is the organigram of specific embodiment female joint.
Primary clustering symbol description in figure:
nullAdjustable pitch oar hydraulic pressure and lubricating system 100，Hydraulic pressure unit 110，Oil storage tank 111，Hydraulic pump 112，Electromagnetic valve group 113，Oil dispenser 114，Positive car pipeline 120，Reversing pipeline 130，Throttle orifice 140，Draw pipeline 150，Propeller hub oil cylinder 200，Positive car chamber 210，Reversing chamber 220，Cylinder body 230，Piston 240，Hollow piston connecting rod 250，Propeller hub inner chamber 300，Adapter assembly 400，Male joint 410，First step 411，Second step 412，3rd step 413，4th step 414，Female joint 420，First groove 421，Second groove 422，Internal oil passages passage 430，Outside oil circuit duct 440，Gravity oil tank 500，Weir divider 510，Oil suction chamber 520，Go out oil pocket 530，Propeller hub 600，Propeller hub dividing plate 700，Hollow gear case axle 800，Blade 900，AH imported and exported by positive car，AS is imported and exported in reversing.
Detailed description of the invention
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Embodiment one:
As shown in Figure 2, the present embodiment proposes a kind of adjustable pitch oar hydraulic pressure and lubricating system 100, including: for the hydraulic pressure unit 110 of hydraulic oil conveying, for the positive car pipeline 120 of hydraulic oil conveying in car chamber 210 positive in propeller hub oil cylinder 200, for the reversing pipeline 130 of hydraulic oil conveying in reversing chamber 220 in propeller hub oil cylinder 200, it is used as the throttle orifice 140 of lubricating oil and the extraction pipeline 150 for being drawn by the lubricating oil of propeller hub inner chamber 300 for the hydraulic oil in reversing chamber 220 being released to propeller hub inner chamber 300.
The hydraulic pressure unit 110 of the present embodiment is connected to the positive car chamber 210 in propeller hub oil cylinder 200 by the conducting of positive car pipeline 120, the reversing chamber 220 that hydraulic pressure unit 110 is connected in propeller hub oil cylinder 200 by pipeline 130 conducting of moveing backward, throttle orifice 140 conducting is connected between reversing chamber 220 and propeller hub inner chamber 300, and one end conducting drawing pipeline 150 is connected on propeller hub inner chamber 300.
The adjustable pitch oar hydraulic pressure of the present embodiment and lubricating system utilize throttle orifice 140 to be pumped in propeller hub inner chamber 300 and be used as lubricating oil by the hydraulic oil in reversing chamber 220, to the paddle shaft bearing in propeller hub inner chamber 300, guiding mechanism and other propeller hub internal moving parts carry out dynamically lubricating, system meets propeller hub oil cylinder 200 simultaneously and carries out the hydraulic pressure needs of pitch adjustment and the dynamically lubricating needs of each moving component of propeller hub inner chamber 300, the way of additional lubricant passage way compared to existing technology, save the setting of pipeline, more installation space has been vacateed for positive car pipeline and reversing pipeline, can effectively promote pitch response time further, and overall structure is simpler reliably, lubricant effect is more preferably.
Further detailed description of the invention as the present embodiment, as shown in Figure 3 and Figure 4, the reversing pipeline 130 of the present embodiment and positive car pipeline 120 form double-jacket tube structure, reversing pipeline 130 is as trocar sheath, positive car pipeline 120 is as inner sleeve, reversing pipeline 130 is set on positive car pipeline 120, positive car pipeline 120 is directly conducted in propeller hub oil cylinder 200 in positive car chamber, the end seal that reversing pipeline 130 is in propeller hub oil cylinder 200 in positive car chamber 210, is connected in propeller hub oil cylinder 200 in reversing chamber 220 by all sides conducting of reversing pipeline 130.
Exemplary, the axis by positive car pipeline 120 and reversing pipeline 130 of the present embodiment overlaps and arranges, namely the pipe cross section of double-jacket tube structure is concentric circular form, and inner sleeve walked by the hydraulic oil of positive car chamber 210, and the annular gap between inner sleeve and trocar sheath walked by the hydraulic oil of reversing chamber 220.
In adjustable pitch oar hydraulic press lubricating system peculiar to vessel, the length of required positive car pipeline 120 and reversing pipeline 130 is longer, it usually needs be each divided into the pipeline of two or more to be attached extending positive car pipeline 120 and reversing pipeline 130.Concrete, in the present embodiment, positive car pipeline 120 and reversing pipeline 130 are each divided into two sections to be attached, and adopt adapter assembly 400 to dock in adjacent channel junction.Owing to positive car pipeline 120 and reversing pipeline 130 need to form double-jacket tube structure, so the adapter assembly of general pipeline cannot well meet the positive car pipeline of the present embodiment and the use needs of reversing pipeline.
As it is shown in figure 5, the adapter assembly 400 that the present embodiment adopts includes male joint 410 and female joint 420.As shown in Figure 6, being formed with the first step 411 for sheathed positive car pipeline 120 and the second step 412 for sheathed reversing pipeline 130 on the joint link of the male joint 410 of the present embodiment, first step 411 is formed by outwardly convex in the middle part of the outer face of second step 412.As shown in Figure 7, the joint link of the female joint 420 of the present embodiment is identical with the structure of the joint link of male joint 410, there is first step and the second step of same structure, male joint 410 and female joint 420 are detachably connected as a whole, the opposing setting of joint link of the joint link of male joint 410 and female joint 420, the step surface of the first step 411 of male joint 410 offer for turning on, with positive car pipeline 120, the internal oil passages passage 430 being connected towards the step surface of the first step of female joint 420 is through, the step surface of the second step 412 of male joint 410 offers for turning on, with reversing pipeline 130, the outside oil circuit duct 440 being connected towards through on the step surface of the second step of female joint 420.
Concrete, all lateral projections of the first step 411 of the male joint 410 of the present embodiment are provided with the O RunddichtringO (mounting groove only illustrated in figure, not shown O RunddichtringO), positive car pipeline 120 directly seals noose on all sides of the first step 411 of male joint 410.All lateral projections of the first step of female joint 420 are provided with O RunddichtringO (mounting groove only illustrated in figure, not shown O RunddichtringO), and another section of positive car pipeline 120 directly seals noose on all sides of the first step of female joint 420.Forming helicitic texture on all sides of the second step 412 of male joint 410, reversing pipeline 130 is threaded on all sides of second step 412 of male joint 410.Forming helicitic texture on all sides of the second step of female joint 420, another reversing pipeline 130 is threaded on all sides of second step 412 of male joint 410.
As shown in Figure 6, the protruding link that the male joint 410 of the present embodiment is used for removably connecting with female joint 420 is formed with the 3rd step 413 and the 4th step 414, and the 3rd step 413 is formed by outwardly convex in the middle part of the outer face of the 4th step 414.As it is shown in fig. 7, the female connecting end that female joint 420 is used for removably connecting with male joint 410 is formed with the first groove 421 and the second groove 422, the first groove 421 caves inward in the middle part of the inner face by the second groove 422 and is formed.As shown in Figure 5,3rd step 413 seals and is arranged in the first groove 421,4th step 414 is sealedly connected in the second groove 422, internal oil passages passage 430 in male joint 410 is docked on the internal oil passages passage 430 of female joint 420 by the step surface of the 3rd step 413, and the outside oil circuit duct 440 in male joint 410 is docked on the outside oil circuit duct 440 of female joint 420 by the step surface of the 4th step 414.
Exemplary, the quantity of the internal oil passages passage 430 that the present embodiment is arranged is 1, and the quantity in outside oil circuit duct 440 is 14, as it is shown in figure 5,14 outside oil circuit ducts are evenly arranged round internal oil passages passage.
Of coursing, in other specific embodiments, described reversing pipeline and described positive car pipeline are except forming above-mentioned double-jacket tube structural configuration and can also separately be independently arranged or carrying out the sheathed of not coaxial line as required.The concrete structure of the adapter assembly adopted and combination can also be adjusted as required with the concrete connected mode of each pipeline.The quantity in described internal oil passages passage and described outside oil circuit duct can also specifically adjust as required, and the quantity such as outside oil circuit duct can also be other numbers in 2-20 bar, repeats no more herein.
Further detailed description of the invention as the present embodiment, as shown in Figure 3 and Figure 4, the adjustable pitch oar hydraulic pressure of the present embodiment and lubricating system 100 also include: for storing the gravity oil tank 500 of the lubricating oil drawing the propeller hub inner chamber 300 that pipeline 150 is drawn, one end conducting drawing pipeline 150 is connected on propeller hub inner chamber 300, the other end conducting drawing pipeline 150 is connected on gravity oil tank 500, and gravity oil tank 500 conducting is connected on hydraulic pressure unit 110.Concrete, is divided into oil suction chamber 520 by a weir divider 510 in gravity oil tank 500 and goes out oil pocket 530, drawing pipeline 150 and turn on oil suction chamber 520, gravity oil tank 500 turns on hydraulic pressure unit 110 and is connected by going out oil pocket 530.Wherein, as required gravity oil tank can be placed on suitable height, it is ensured that the lubricating oil of propeller hub inner chamber, with the rational pressure reduction of external sea water, is further ensured that the sealing property that propeller hub is good.
Exemplary, the hydraulic pressure unit 110 of the present embodiment includes oil storage tank 111, hydraulic pump 112, electromagnetic valve group 113 and oil dispenser 114, oil storage tank 111 is connected in electromagnetic valve group 113 by hydraulic pump 112, electromagnetic valve group 113 connects oil dispenser 114 and connects positive car chamber 210 and reversing chamber 220 by positive car pipeline 120 and reversing pipeline 130 are corresponding, and gravity oil tank 500 conducting is connected on oil storage tank 111.As in figure 2 it is shown, the hydraulic oil being stored in oil storage tank 111 is pumped by hydraulic pump 112, via can control hydraulic oil flow to electromagnetic valve group 113 enter oil dispenser 114.
Lubricating oil in propeller hub inner chamber 300 is in the environment of a relative closure, so the quality of lubricating oil is just particularly important, and this is not made effective way by current each lubricating system.For the needs to lubricating oil condition monitoring and optimization, the present embodiment is drawing the precipitation defecator (not shown) being provided with on pipeline 150 for the lubricating oil derived carries out precipitation filtration, sample point and oil monitor (not shown) etc. can also be set simultaneously on extraction pipeline 150, owing to lubricating oil constantly flows out from propeller hub inner chamber 300, so can take moisture or other impurity that propeller hub inner chamber 300 exists out of propeller hub, the oily situation of lubricating oil it is appreciated that by sample point and oil monitor, by analyzing the lubrication circumstances that its oil situation can indirectly know each moving component of propeller hub inner chamber, then the ruuning situation of adjustable pitch oar is learnt.And the lubricating oil drawn is via, after the process of described precipitation defecator, returning to hydraulic pressure unit, such lubricating oil have also been obtained corresponding improvement while constantly circulation.
Embodiment two:
nullAs shown in Figure 2，The present embodiment proposes a kind of self-lubricating adjustable pitch oar，Including propeller hub 600、Propeller hub oil cylinder 200、Propeller hub dividing plate 700、Hollow gear case axle 800、Blade 900、Guiding mechanism and adjustable pitch oar hydraulic pressure and lubricating system 100，Hollow gear case axle 800 connects propeller hub 600，The outer circumferential side of propeller hub 600 is provided with some blades 900，Propeller hub 600 be internally formed propeller hub inner chamber 300，Adjustable pitch oar hydraulic pressure and lubricating system 100 connect propeller hub oil cylinder 200，Propeller hub oil cylinder 200 includes cylinder body 230、Piston 240 and hollow piston connecting rod 250，Cylinder body 230 is arranged on the end face that propeller hub 600 is opposing with hollow gear case axle 800，Separated by propeller hub dividing plate 700 and propeller hub inner chamber 300，Piston 240 is arranged in cylinder body 230，Cylinder body 230 is divided into positive car cavity 210 and reversing cavity 220，Hollow piston connecting rod 250 one end is connected on piston 240，The other end stretches into propeller hub inner chamber 300 through propeller hub dividing plate 700，Described guiding mechanism is connected on blade 900 and hollow piston connecting rod 250，Hollow piston connecting rod 250 drives blade 900 to carry out pitch adjustment by described guiding mechanism.
Wherein, the hydraulic pressure of adjustable pitch oar described in the present embodiment and lubricating system are the adjustable pitch oar hydraulic pressure described in embodiment one and lubricating system 100, positive car pipeline 120 and reversing pipeline 130 wear along hollow gear case axle 800 and the axially extending of hollow piston connecting rod 250, throttle orifice 140 conducting is arranged on propeller hub dividing plate 700, reversing chamber 220 and propeller hub inner chamber 300 carries out conducting and arranges.
Exemplary, as shown in Figure 3 and Figure 4, the axis of the double-jacket tube structure of positive car pipeline 120 and reversing pipeline 130 formation cavity along hollow piston connecting rod 250 and hollow gear case axle 800 is arranged, draws pipeline 150 and draws setting along hollow piston connecting rod 250 and the axially extending of hollow gear case axle 800.
Adjustable pitch oar hydraulic pressure and the concrete technical scheme of lubricating system 100 described in the present embodiment can referring to contents described in embodiment one, propeller hub 600, propeller hub oil cylinder 200, propeller hub dividing plate 700, hollow gear case axle 800, blade 900 and/or guiding mechanism all directly can be chosen as needed on market, can refer to the structure of existing adjustable pitch oar to be configured simultaneously, repeat no more herein.
Exemplary, the applicable cases of the present embodiment self-lubricating adjustable pitch oar is as follows:
As shown in Figure 2, the hydraulic oil being stored in oil storage tank 111 is pumped by hydraulic pump 112, via can control hydraulic oil flow to electromagnetic valve group 113 enter oil dispenser 114, electromagnetic valve group 113 hydraulic oil controlled by oil dispenser 114 enter positive car pipeline 120 or reversing pipeline 130.As shown in Figure 4, import and export AH by the positive car in Fig. 4 to be connected with the conducting of positive car pipeline 120, delivery hydraulic pressure oil extremely positive car chamber 210, import and export AS by the reversing in Fig. 4 to be connected with reversing pipeline 130 conducting, delivery hydraulic pressure oil extremely reversing chamber 220, due to the promotion of hydraulic oil, the piston 240 of propeller hub oil cylinder 200 is understood the oil-feed direction different according to hydraulic oil and is done axially reciprocating relative to propeller hub 600.
When piston 240 carries out axially-movable, being axially moved by drive hollow piston connecting rod 250, hollow piston connecting rod 250 will drive guiding mechanism action, complete the pitch regulated of blade 900.When positive car chamber 210 starts oiling, the hydraulic oil in reversing chamber 220 also can be discharged in propeller hub inner chamber 300 by throttle orifice 140 simultaneously, then is drawn by drawing pipeline 150, provides dynamically lubricating oil for propeller hub inner chamber 300.
The present embodiment is while running based on adjustable pitch oar, when adjustable pitch oar is in pitch adjustment action, hydraulic oil is entered oil dispenser 114 by pipeline after electromagnetic valve group 113, and after hydraulic oil enters oil dispenser 114 as can be seen from Figure 4, distribution enters corresponding chamber to positive car pipeline 120 or reversing pipeline 130.The double-jacket tube structure that positive car pipeline 120 and reversing pipeline 130 are formed is along the axis arrangement of cavities of hollow gear case axle 800, and corresponding delivery hydraulic pressure oil is to the positive car chamber 210 of propeller hub oil cylinder 200 in Fig. 3 or in reversing chamber 220.Entering the hydraulic oil of reversing chamber 220, by the throttle orifice 140 on propeller hub dividing plate 700, reduced pressure delivery is to propeller hub inner chamber 300.Propeller hub inner chamber 300 be depressurized after lubricating oil be full of, lubricating oil is drawn via drawing pipeline 150, carry out after precipitation filtration through precipitation defecator, flow back in the oil suction chamber 520 of gravity oil tank 500, when the oil plant in the oil suction chamber 520 of gravity oil tank 500 is too much, lubricating oil can overflow across weir divider 510 and enter out oil pocket 530, finally flow back in oil storage tank 111 and is circulated use.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (10)
1. an adjustable pitch oar hydraulic pressure and lubricating system, it is characterised in that: including:
For the hydraulic pressure unit of hydraulic oil conveying,
For the positive car pipeline of hydraulic oil conveying in car chamber positive in propeller hub oil cylinder,
For the reversing pipeline of hydraulic oil conveying in chamber of moveing backward in propeller hub oil cylinder,
The throttle orifice of lubricating oil it is used as the hydraulic oil in described reversing chamber being released to propeller hub inner chamber, and
For the extraction pipeline that the lubricating oil of described propeller hub inner chamber is drawn；
Described hydraulic pressure unit is connected to the in-oil cylinder positive car chamber of described propeller hub by the conducting of described positive car pipeline, described hydraulic pressure unit is connected to the in-oil cylinder reversing chamber of described propeller hub by the conducting of described reversing pipeline, the conducting of described throttle orifice is connected between described reversing chamber and described propeller hub inner chamber, and one end conducting of described extraction pipeline is connected on described propeller hub inner chamber.
2. adjustable pitch oar hydraulic pressure as claimed in claim 1 and lubricating system, it is characterized in that: described reversing pipeline and described positive car pipeline form double-jacket tube structure, described reversing pipeline is as trocar sheath, described positive car pipeline is as inner sleeve, described reversing pipeline is set on described positive car pipeline, described positive car pipeline is directly conducted in described propeller hub oil cylinder in positive car chamber, the end seal that described reversing pipeline is in described propeller hub oil cylinder in positive car chamber, is turned on by all sides of described reversing pipeline and is connected in described propeller hub oil cylinder to move backward in chamber.
3. adjustable pitch oar hydraulic pressure as claimed in claim 2 and lubricating system, it is characterised in that: the axis of described positive car pipeline and described reversing pipeline overlaps.
4. adjustable pitch oar hydraulic pressure as claimed in claim 3 and lubricating system, it is characterized in that: described positive car pipeline is formed by connecting by the pipeline of two or more, described reversing pipeline is formed by connecting by the pipeline of two or more, the number of tubes that described positive car pipeline and described reversing pipeline adopt is equal, and adjacent channel junction adopts adapter assembly to dock；
Described adapter assembly includes male joint and female joint, being formed with the first step for sheathed described positive car pipeline and the second step for sheathed described reversing pipeline on the joint link of described male joint, described first step is formed by outwardly convex in the middle part of the outer face of described second step；The joint link of described female joint is identical with the structure of the joint link of described male joint, described male joint and described female joint are detachably connected as a whole, the opposing setting of joint link of the joint link of male joint and female joint, the step surface of the first step of described male joint offer for turning on, with described positive car pipeline, the internal oil passages passage being connected towards the step surface of the first step of described female joint is through, the step surface of the second step of described male joint offers for turning on, with described reversing pipeline, the outside oil circuit duct being connected towards through on the step surface of the second step of described female joint.
5. adjustable pitch oar hydraulic pressure as claimed in claim 4 and lubricating system, it is characterised in that: all lateral projections of the first step of described male joint are provided with O RunddichtringO, and described positive car pipeline directly seals noose on all sides of the first step of described male joint；And/or,
All lateral projections of the first step of described female joint are provided with O RunddichtringO, and another positive car pipeline directly seals noose on all sides of the first step of described female joint；And/or,
Forming helicitic texture on all sides of the second step of described male joint, described reversing pipeline is threaded on all sides of the second step of described male joint；And/or,
Forming helicitic texture on all sides of the second step of described female joint, another reversing pipeline is threaded on all sides of second step of described male joint；And/or,
The protruding link that described male joint is used for removably connecting with described female joint is formed with the 3rd step and the 4th step, described 3rd step is formed by outwardly convex in the middle part of the outer face of described 4th step, the female connecting end that described female joint is used for removably connecting with described male joint is formed with the first groove and the second groove, described first groove caves inward in the middle part of the inner face by described second groove and is formed, described 3rd step seals and is arranged in described first groove, described 4th step is sealedly connected in described second groove, internal oil passages passage in described male joint is docked on the internal oil passages passage of described female joint by the step surface of described 3rd step, outside oil circuit duct in described male joint is docked on the outside oil circuit duct of described female joint by the step surface of described 4th step；And/or, the quantity of described internal oil passages passage is 1, and the quantity in described outside oil circuit duct is 2-20 bar.
6. adjustable pitch oar hydraulic pressure as described in any one of claim 1-5 and lubricating system, it is characterized in that: described adjustable pitch oar hydraulic pressure and lubricating system also include: for storing the gravity oil tank of the lubricating oil of the described propeller hub inner chamber that described fairlead pass goes out, one end conducting of described extraction pipeline is connected on described propeller hub inner chamber, the other end conducting of described extraction pipeline is connected on described gravity oil tank, and the conducting of described gravity oil tank is connected on described hydraulic pressure unit.
7. adjustable pitch oar hydraulic pressure as claimed in claim 6 and lubricating system, it is characterized in that: be divided into oil suction chamber by a weir divider in described gravity oil tank and go out oil pocket, described extraction pipeline turns on described oil suction chamber, described gravity oil tank by described go out oil pocket and described hydraulic pressure unit turn on and be connected.
8. adjustable pitch oar hydraulic pressure as claimed in claim 6 and lubricating system, it is characterized in that: described hydraulic pressure unit includes oil storage tank, hydraulic pump, electromagnetic valve group and oil dispenser, described oil storage tank is connected in described electromagnetic valve group by described hydraulic pump, described electromagnetic valve group connects described oil dispenser by the described positive car pipeline described positive car chamber of connection corresponding to described reversing pipeline and described reversing chamber, and the conducting of described gravity oil tank is connected to described oil storage tank.
9. adjustable pitch oar hydraulic pressure as claimed in claim 6 and lubricating system, it is characterised in that: described extraction pipeline is provided with for the lubricating oil derived being carried out the precipitation defecator that precipitation filters.
null10. a self-lubricating adjustable pitch oar，Including propeller hub、Propeller hub oil cylinder、Propeller hub dividing plate、Hollow gear case axle、Blade、Guiding mechanism and adjustable pitch oar hydraulic pressure and lubricating system，Described hollow gear case axle connects described propeller hub，The outer circumferential side of described propeller hub is provided with some blades，Described propeller hub be internally formed propeller hub inner chamber，Described adjustable pitch oar hydraulic pressure and lubricating system connect described propeller hub oil cylinder，Described propeller hub oil cylinder includes cylinder body、Piston and hollow piston connecting rod，Described cylinder body is arranged on the end face that described propeller hub is opposing with described hollow gear case axle，Separated by described propeller hub dividing plate and described propeller hub inner chamber，Described piston is arranged in described cylinder body，Described cylinder body is divided into positive car cavity and reversing cavity，Described hollow piston connecting rod one end is connected on described piston，The other end stretches into described propeller hub inner chamber through described propeller hub dividing plate，Described guiding mechanism is connected on described blade and described hollow piston connecting rod，Described hollow piston connecting rod drives described blade to carry out pitch adjustment by described guiding mechanism；It is characterized in that:
Described adjustable pitch oar hydraulic pressure and lubricating system are the adjustable pitch oar hydraulic pressure described in any one of claim 1-9 and lubricating system, described positive car pipeline and described reversing pipeline wear along described hollow gear case axle and described the axially extending of hollow piston connecting rod, the conducting of described throttle orifice is arranged on described propeller hub dividing plate, described reversing chamber and described propeller hub inner chamber carries out conducting and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218858.5A CN104071322B (en) | 2014-05-22 | 2014-05-22 | Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218858.5A CN104071322B (en) | 2014-05-22 | 2014-05-22 | Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104071322A CN104071322A (en) | 2014-10-01 |
| CN104071322B true CN104071322B (en) | 2016-07-06 |
Family
ID=51593010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410218858.5A Active CN104071322B (en) | 2014-05-22 | 2014-05-22 | Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104071322B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101867251B1 (en) * | 2015-03-05 | 2018-07-17 | 바르트실라 네덜란드 비.브이. | A method of arranging the lubrication of a controllable pitch propeller arrangement of a marine vessel and a lubrication arrangement therefor |
| CN108146602B (en) * | 2017-11-17 | 2019-12-17 | 武汉船用机械有限责任公司 | Automatic oil mixing control device and control method for controllable-pitch propeller |
| CN111287917B (en) * | 2020-03-05 | 2021-12-07 | 江苏万基传动科技有限公司 | Self-lubricating wind-driven generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802800A (en) * | 1971-08-26 | 1974-04-09 | Lips Nv Drunen | Variable pitch propeller with emergency control |
| WO1986002901A1 (en) * | 1984-11-17 | 1986-05-22 | Sulzer-Escher Wyss Gmbh | Method and apparatus for adjusting propeller blades of a hydraulically controlled variable pitch propeller |
| RU2053162C1 (en) * | 1993-12-30 | 1996-01-27 | Научно-производственное объединение "Винт" | Shipboard propeller and reduction gear set lubrication and control hydraulic system |
| CN200954875Y (en) * | 2006-08-18 | 2007-10-03 | 武汉船用机械有限责任公司 | Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch |
| CN202130564U (en) * | 2011-04-28 | 2012-02-01 | 杭州前进齿轮箱集团股份有限公司 | Front-mounted type cylinder ship propeller hub |
| CN203864975U (en) * | 2014-05-22 | 2014-10-08 | 赵晓凯 | Self-lubricating adjustable-pitch propeller and adjustable-pitch propeller hydraulic pressure and lubrication system thereof |
-
2014
- 2014-05-22 CN CN201410218858.5A patent/CN104071322B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3802800A (en) * | 1971-08-26 | 1974-04-09 | Lips Nv Drunen | Variable pitch propeller with emergency control |
| WO1986002901A1 (en) * | 1984-11-17 | 1986-05-22 | Sulzer-Escher Wyss Gmbh | Method and apparatus for adjusting propeller blades of a hydraulically controlled variable pitch propeller |
| RU2053162C1 (en) * | 1993-12-30 | 1996-01-27 | Научно-производственное объединение "Винт" | Shipboard propeller and reduction gear set lubrication and control hydraulic system |
| CN200954875Y (en) * | 2006-08-18 | 2007-10-03 | 武汉船用机械有限责任公司 | Two-oil-pipe distance-adjusting screw propeller capable of locking screw pitch |
| CN202130564U (en) * | 2011-04-28 | 2012-02-01 | 杭州前进齿轮箱集团股份有限公司 | Front-mounted type cylinder ship propeller hub |
| CN203864975U (en) * | 2014-05-22 | 2014-10-08 | 赵晓凯 | Self-lubricating adjustable-pitch propeller and adjustable-pitch propeller hydraulic pressure and lubrication system thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104071322A (en) | 2014-10-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104071322B (en) | Self-lubricating adjustable pitch oar and adjustable pitch oar hydraulic pressure thereof and lubricating system | |
| CN203864975U (en) | Self-lubricating adjustable-pitch propeller and adjustable-pitch propeller hydraulic pressure and lubrication system thereof | |
| CN102224069B (en) | An adjustable propeller arrangement and a method of distributing fluid to and/or from such an adjustable propeller arrangement | |
| CN108557046A (en) | Shaft-type oil distributor | |
| CN102713257A (en) | Sealing structure | |
| CN102619747A (en) | High-pressure seawater hydraulic pump for double-cone opposite-cone threaded rod | |
| CN2647749Y (en) | Ship trailing axle system device using water lubricating | |
| CN105697388A (en) | Deepwater hydraulic drive water pump | |
| US10759510B2 (en) | Method of arranging the lubrication of a controllable pitch propeller arrangement of a marine vessel and a lubrication arrangement therefor | |
| KR20190020771A (en) | Arrangements for supporting propeller shafts of marine vessels and how to maintain them | |
| CN104696497A (en) | Lubrication system for reduction gearbox | |
| CN205618374U (en) | Deep water hydraulic drive water pump | |
| CN106246645A (en) | A kind of radiator and hydraulic jet propulsion system | |
| CN106763702B (en) | Full-rotation type rudder propeller is with spraying submergence combined lubrication system | |
| CN204816411U (en) | Crude oil storage tank rotary jetting formula agitator nozzle structure | |
| CN105517891A (en) | Propeller arrangement | |
| CN107521649A (en) | Ship is to rotating oar propulsive unit complete machine structure | |
| CN112575846A (en) | Water supply equipment and supercharging device thereof | |
| CN202349171U (en) | Circulating oil supply device for bearing part of speed reducer | |
| CN204237550U (en) | A kind of anti-spilling oil gun | |
| CN206841692U (en) | A kind of yacht stern tube shaft fair water cone | |
| CN218949459U (en) | Hydraulic buoyancy adjusting device for water | |
| CN208680092U (en) | A kind of cleaning device of closed container | |
| CN205801422U (en) | A kind of cooling system of water surface cleaning ship | |
| CN219242922U (en) | Hydraulic variable-pitch wind power rotary joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20160128 Address after: 200439, room 118, 2543 Hequ Road, Shanghai, Baoshan District Applicant after: Shanghai Lyen Marine Technology Co.,Ltd. Address before: 201203, room 22, 102 herb Road, North Cai Town, Shanghai, Pudong New Area Applicant before: Zhao Xiaokai |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231117 Address after: No. 188 Yuanming Road, Minhang District, Shanghai, 201100 Patentee after: Liyien Ship Propulsion (Shanghai) Co.,Ltd. Address before: Room 2543, No. 118 Hequ Road, Baoshan District, Shanghai, 200439 Patentee before: Shanghai Lyen Marine Technology Co.,Ltd. |
|
| CI03 | Correction of invention patent |
Correction item: Patentee Correct: Liyien Marine Propulsion (Shanghai) Co., Ltd. False: Liyien Ship Propulsion (Shanghai) Co., Ltd. Number: 49-01 Volume: 39 |