CN108779690A - Valve device and cross-head type internal combustion engine - Google Patents
Valve device and cross-head type internal combustion engine Download PDFInfo
- Publication number
- CN108779690A CN108779690A CN201780003716.9A CN201780003716A CN108779690A CN 108779690 A CN108779690 A CN 108779690A CN 201780003716 A CN201780003716 A CN 201780003716A CN 108779690 A CN108779690 A CN 108779690A
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- China
- Prior art keywords
- working oil
- valve device
- feed path
- sliding cylinder
- cam
- Prior art date
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M9/00—Lubrication means having pertinent characteristics not provided for in, or of interest apart from, groups F01M1/00 - F01M7/00
- F01M9/10—Lubrication of valve gear or auxiliaries
Abstract
It is provided in valve device and cross-head type internal combustion engine：Shell (41) and cylinder part (44)；Sliding cylinder (42), the sliding cylinder (42) are movably supported on shell (41)；The upper end of piston (46), the piston (46) and sliding cylinder (42) links；Cam (47), the cam (47) can act on the roller (45) of the lower end of sliding cylinder (42) and keep sliding cylinder (42) mobile；Discharge chambe (59), the discharge chambe (59) can compress working oil by the movement of piston (46)；Working oil supply mouth (61), the working oil supply mouth (61) are set to upper case (41)；The first working oil feed path of working oil is supplied from working oil supply mouth (61) to discharge chambe (59)；And the second working oil feed path of working oil is supplied from working oil supply mouth (61) to cam (47).
Description
Technical field
The present invention relates to be used to that the valve train of exhaust valve be driven to fill in the internal combustion engines such as diesel engine, gas engine
It sets, the cross-head type internal combustion engine with the valve device.
Background technology
In cross-head type internal combustion engine, there is lower part valve device to the valve device that exhaust valve is opened and closed
With top valve device.Valve device is supplied to top valve device to be compressed in the valve device of lower part
Working oil afterwards, with transmit come working oil driving force and fight air spring force exhaust valve is pushed, to locate
It is opened and closed in the exhaust valve of closed state.Sliding cylinder is supported to move along upper and lower directions in the lower part valve device
It moves freely, which is exerted a force downwards by spring inside the shell.Also, the sliding cylinder is above pushed away using cam and is made on piston
It rises, so as to compress and supply working oil.
As previous valve device, such as with the structure recorded in following patent documents 1.
Existing technical literature
Patent document 1：Japanese Unexamined Patent Publication 2015-098795 bulletins
The subject that the invention solves
In above-mentioned lower part valve device, its cam part of the cam of rotation above pushes away sliding cylinder via roller, therefore
It needs to supply lubricating oil to the sliding surface of the cam and roller.In the past, it is supplied to top valve device and is used to drive exhaust
A part for the working oil of door is supplied to cam or roller as lubricating oil.That is, using being stored to sliding cylinder, cam etc.
The piping for being externally supplied working oil (lubricating oil) is set in camshaft case, and make to be externally supplied the piping of working oil with
Store the cylinder connection of piston.Therefore, it is necessary to multiple pipings, there are construction become complicated and manufacturing cost can increase it is such
Project.
Invention content
The present invention is to complete in order to solve above-mentioned problem, it is intended that providing the gas for the simplification for realizing construction
Door transmission device and cross-head type internal combustion engine.
Means for solving the problems
In the valve device of the present invention for reaching above-mentioned purpose, have：Apparatus main body, the apparatus main body include
Lower case and upper case；Sliding cylinder, which moves in the axial direction is supported on the lower case freely；Piston,
The piston moves in the axial direction and is supported on the upper case freely, and is integrally moved with the sliding cylinder；Cam, should
Cam makes the sliding cylinder move；And working oil supply unit, the working oil supply unit are set to the upper case and to institutes
Apparatus main body supply working oil is stated, discharge chambe, the first working oil feed path and second are formed in the upper case
Working oil feed path, working oil of the discharge chambe by movement of the piston to being supplied from the working oil supply unit
A part compressed, the first working oil feed path from the working oil supply unit to the discharge chambe supply described in
A part for working oil, the second working oil feed path is from the working oil supply unit to described in lower case supply
The other parts of working oil.
Therefore, when cam rotates, sliding cylinder is moved back and forth in the axial direction due to the rotary force of cam, piston and sliding
Cylinder integrally moves back and forth.Then, the work of discharge chambe is supplied to by from working oil supply unit by the first working oil feed path
Make oil to be discharged by compression.Also, the working oil supplied by from working oil supply unit by the second working oil feed path is supplied
It is given to cam, cam is lubricated.Here, the of working oil is supplied from a working oil supply unit to discharge chambe by being arranged
One working oil feed path, and the second working oil feed path that working oil is supplied to cam is set, and make to supply with working oil
Simplify to the piping structure of portion's connection, and the processing of the oil circuit of apparatus main body is also simplified, as a result, construction can be realized
Simplify.
In the valve device of the present invention, wherein the upper case is set to the top of camshaft case, described
The side of camshaft case is provided with the opening portion being connected to the cam, for supplying the work to the working oil supply unit
The working oil supplying tubing of oil is configured in the position than the opening portion closer to top.
Therefore, it is configured than opening portion by that will be used to supply the working oil supplying tubing of working oil to working oil supply unit
Closer to the position of top, working oil supplying tubing will not interfere the operator for carrying out various operations to cam from opening portion, energy
Enough improve workability.
In the valve device of the present invention, wherein the first working oil feed path is provided with check-valves, should be only
Return valve allow from the working oil supply unit to the flowing of the working oil of the discharge chambe and forbid from the discharge chambe to
The flowing of the working oil of the working oil supply unit, the discharge chambe in the first working oil feed path with it is described
It is connected to working oil discharge unit between check-valves, which supplies the compressed working oil in the discharge chambe
Discharge.
Therefore, when to working oil supply unit supply working oil when, working oil by first working oil feed path by supply
To discharge chambe, working oil is compressed in discharge chambe when piston rises, and is discharged from working oil discharge unit.At this point, logical
It crosses and is provided with check-valves in the first working oil feed path, and the compressed working oil in discharge chambe is made not flow back into work
Make oily supply unit, can be properly discharged from working oil discharge unit.
In the valve device of the present invention, wherein the lower case in the second working oil feed path
The opening portion of side is connect with the working oil feed path in the lower case, the working oil feed path in the lower case
Be formed as axially being arranged in the lower case, and the upper end of the working oil feed path is in the upper case side
Opening, the lower end of the working oil feed path is towards the cam shedding.
Therefore, it is used as second by the lower part feed path of top feed path and lower case that upper case is arranged
Working oil feed path can be such that the feed path for being formed in apparatus main body simplifies.
In the valve device of the present invention, wherein the peripheral surface of the sliding cylinder is provided with key axially
Slot, the key for being fixed on the lower case are inserted into the keyway, and the working oil feed path in the lower case has
The keyway and the connectivity slot being arranged in the key.
Therefore, by the way that the key for being fixed on lower case to be inserted in the keyway of sliding cylinder, it can easily be done sliding
The rotation stop of cylinder is used as lower part feed path by the connectivity slot being arranged in keyway and key, construction can be made to simplify.
Also, in the cross-head type internal combustion engine of the present invention, have：Lower part valve device, the lower part valve train dress
It sets using the valve device；And top valve device, the top valve device by come from it is described under
The working oil of portion's valve device and exhaust valve is driven.
Therefore, in the valve device of lower part, when cam rotates, sliding cylinder due to cam rotary force and in axial direction
Upper reciprocating movement, piston are integrally moved back and forth with sliding cylinder.Then, road is supplied from working oil supply unit by the first working oil
Diameter and the working oil for being supplied to discharge chambe is discharged by compression.Also, supply road from working oil supply unit by the second working oil
Diameter and the working oil that supplies is fed into cam, cam is lubricated.Here, by setting from a working oil supply unit to
Discharge chambe supplies the first working oil feed path of working oil, and the second working oil supply that working oil is supplied to cam is arranged
Path, and the piping structure being connect with working oil supply unit is made to simplify, and the processing of the oil circuit of apparatus main body is also simplified, it ties
Fruit is that can realize the simplification of construction.
Invention effect
Valve device and cross-head type internal combustion engine according to the present invention, can realize the simplification of construction.
Description of the drawings
Fig. 1 is the sectional view for the lower part valve device for indicating present embodiment.
Fig. 2 is the sectional view for the sliding cylinder for indicating lower part valve device.
Fig. 3 is the right side view of sliding cylinder.
Fig. 4 is the left side view of sliding cylinder.
Fig. 5 is the V-V sectional views of the Fig. 2 for the horizontal cross-section for indicating sliding cylinder.
Fig. 6 is the front view for indicating lower part valve device.
Fig. 7 is the skeleton diagram for indicating diesel engine.
Fig. 8 is the skeleton diagram for the valve device for indicating present embodiment.
Specific implementation mode
Referring to the drawings, to the present invention valve device and cross-head type internal combustion engine preferred embodiment into
Row is described in detail.In addition, the present invention is not limited to the embodiments, also, with multiple embodiments, also include
The mode for making each embodiment combine and constituting.
Fig. 7 is the skeleton diagram for indicating diesel engine.
In the present embodiment, as shown in fig. 7, diesel engine 10 is used for example as the host of Ship Propeling
Two-stroke one recycle uniflow scavenging mode cross-head type internal combustion engine.The diesel engine 10 has：Underlying
Plate 11, the framework 12 being set on platen 11 and the cylinder lagging 13 being set on framework 12.The platen 11,12 and of framework
Cylinder lagging 13 is integrally fastened and fixed by multiple turnbuckles 14 extended in the vertical direction and nut 15.
Cylinder jacket 16 and cylinder head 17 mark off spatial portion, by the way that piston 18 is set as vertically past in the spatial portion
Multiple movement freely, and forms combustion chamber 19.Also, cylinder head 17 is provided with exhaust valve 20, can pass through valve device 21
It is opened and closed.Combustion chamber 19 and exhaust pipe 22 is opened and closed in the exhaust valve 20.Here, pass through cylinder lagging 13, cylinder jacket 16
Burner is constituted with cylinder head 17.
Therefore, by supplying the fuel supplied from fuel-injection pump (not shown) (for example, low-quality is oily, day to combustion chamber 19
Right gas either its fuel combination), the burning after not shown compressor compresses with gas (for example, air, EGR gases or
Its mixed gas) and burn.Also, piston 18 is set to move up and down by energy caused by the burning.Also, at this time when
When being opened combustion chamber 19 by exhaust valve 20, the generated exhaust gas that burns is pushed out into exhaust pipe 22, on the other hand, never schemes
Burning is imported into combustion chamber 19 by the scavenging port shown with gas.
It is linked with the upper end of piston rod 23 in the lower end of piston 18.Platen 11 constitutes crankcase, is provided with bent axle
24 bearings 25 rotatably freely supported.Also, bent axle 24 is rotatably linked to via crank 26 under pitman 27
End.In framework 12, a pair of guide plate 28 extended in the vertical direction separates defined compartment of terrain and fixes, and is oriented in a pair
Crosshead 29 is supported vertically to move freely between plate 28.Crosshead 29 is linked to lower end and the company of piston rod 23 respectively
Take over the baton 27 upper end.
Therefore, the setting of the piston 18 and 23 1 diesel engine 10 in the same direction of piston rod of energy is delivered from combustion chamber 19
The direction (lower section of the direction of 11 side of platen, i.e. vertical direction) in face pushes.Then, piston rod 23 by crosshead 29 to phase Tongfang
It is pressed downward, rotates bent axle 24 via pitman 27 and crank 26.
Fig. 8 is the skeleton diagram for the valve device for indicating present embodiment.
As shown in figure 8, valve device 21 has lower part valve device 31 and top valve device 32.Gas
Door transmission device 21 supplies the compressed working oil in lower part valve device 31 to top valve device 32, uses
It transmits the driving force of the working oil come and pushes exhaust valve 20, the exhaust valve 20 being closed is opened and closed.
In top valve device 32, exhaust valve 20 is made of axle portion 20a and umbrella portion 20b, and moves freely twelve Earthly Branches
It holds in the shell 33 for being fixed on cylinder head 17.In top valve device 32, upward by the force of air spring 34
Axle portion 20a is acted on, to be closed between combustion chamber 19 and exhaust pipe 22 by exhaust valve 20.Also, top valve train
Device 32 also has cylinder part 35 and piston 36 other than air spring 34, and cylinder part 35 is received to be filled from lower part valve train
The working oil of 31 supplies is set, piston 36 is arranged to move freely in the cylinder part 35.The piston 36 is fixed integrally to axle portion
The upper end of 20a, thus the piston 36 integrally move up and down with exhaust valve 20.
In the shell (lower case, apparatus main body) 41 of lower part valve device 31, sliding cylinder 42 is supported to edge
It upper and lower directions (axial direction) to move freely, which is supported due to the force of collapse coil spring 43 by force downwards.
The top of shell 41 is provided with cylinder part (upper case, apparatus main body) 44, the not shown multiple bolt fastenings of the two.It is sliding
Dynamic cylinder 42 is rotatably freely provided with roller (roller portion) 45 in lower end, and is linked with piston 46 in upper end, which exists
Upper and lower directions (axial direction) is arranged along in cylinder part 44 to move freely.On the other hand, in shell 41, in sliding cylinder 42
Lower section is configured with the cam 47 contacted with roller 45.The cam 47 is synchronously rotated with bent axle 24 (with reference to Fig. 7).Also, lower part gas
The cylinder part 44 of door transmission device 31 and the cylinder part 35 of top valve device 32 are connected by working oil piping 48.
Therefore, in lower part valve device 31, when the cam 47 by rotation above pushes away sliding cylinder 42 via roller 45,
Piston 46 compresses the working oil in cylinder part 44.Then, compressed working oil passes through working oil in cylinder part 44
It is piped 48 and is supplied to top valve device 32.In top valve device 32, when to cylinder part 35 supply work
Oil, piston 36 are pressed down, and exhaust valve 20 fights the force of air spring 34 and the combustion chamber 19 that declines, and will be closed
It is connected to exhaust pipe 22.
Hereinafter, explaining lower part valve device 31 in detail.Fig. 1 is the lower part valve train dress for indicating present embodiment
The sectional view set.
In lower part valve device 31, as shown in Figure 1,41 cylindrical shape of shell, along upper and lower directions (axial direction)
Sliding part 51 be arranged to upper and lower opening.Sliding cylinder 42 is chimeric with the sliding part 51 of shell 41, and sliding cylinder 42 is supported
To be moved freely along upper and lower directions (axial direction).In sliding cylinder 42 by support shaft 52 along direction orthogonal to the axial direction
Lower end is rotatably freely equipped with roller 45, and sliding cylinder 42 and roller 45 can be integrally formed and be moved along upper and lower directions (axial direction)
It is dynamic.Also, keyway 53 is formed with defined length in the peripheral surface of sliding cylinder 42, keyway 53 is along upper and lower directions (axis
To).On the other hand, shell 41 is formed with the mounting hole 54 along horizontal direction, and key 55 is fitted to installation from the outside of shell 41
The top end part in hole 54, key 55 is embedded in the keyway 53 of sliding cylinder 42.Therefore, sliding cylinder 42 cannot be relative to shell due to key 55
41 rotate in the circumferential.In this case, the length of keyway 53 forms longer than the range of sliding cylinder 42.
It is integrally fixed cylinder part 44 on the top of shell 41.The sliding along upper and lower directions (axial direction) of cylinder part 44
Portion 56 is arranged in lower opening.The diameter of sliding part 56 is smaller than the diameter of sliding part 51, but sliding part 56 be configured to
51 same heart shaped of sliding part.The protruding portion 57 extended upward, the upper end of protruding portion 57 are provided in the central part of sliding cylinder 42
Portion is integrally linked with piston 46 via connecting member 58.It is moved up and down freely by the sliding part 56 of piston 46 and shell 41
Ground is fitted into, and marks off discharge chambe 59 in the top of piston 46.Therefore, when sliding cylinder 42 rises, piston 46 is via linking part
Part 58 and rise, the working oil in discharge chambe 59 can be compressed.
In the present embodiment, it is provided with the first working oil feed path for supplying working oil to discharge chambe 59 and incites somebody to action
The second working oil feed path that working oil is supplied as lubricating oil to cam 47.
The side of cylinder part 44 is provided with working oil supply mouth (working oil supply unit) 61, working oil supply mouth 61 and chamber
62 connections.Also, it is formed with working oil outlet (working oil discharge unit) 63, working oil outlet in the upper end of cylinder part 44
63 are connected to discharge chambe 59 by linking flow path 64 along the first of upper and lower directions (axial direction).In addition, cylinder part 44 is set
To be intersected along the second radial connection flow path 65 and the first connection flow path 64 by the center of cylinder part 44.Second connection stream
The one end on road 65 is connected to chamber 62, and the other end is connected to oilhole 66, and oilhole 66 penetrates through gas in (axial direction) in above-below direction
Cylinder portion 44.Also, it is provided with check-valves 67 between the second connection flow path 65 and chamber 62, in the second connection flow path 65 and oil
Safety valve 68 is provided between hole 66.Check-valves 67 prevents the stream of the working oil from 59 side of discharge chambe to 61 side of working oil supply mouth
It is dynamic, safety valve 68 is opened when the pressure of discharge chambe 59 is more than defined pressure.
Sliding cylinder 42 is provided with spring storage space portion 69, storage collapse coil spring 43 around protruding portion 57.It should
The upper end of collapse coil spring 43 is contacted with the lower surface of cylinder part 44, and lower end is contacted with sliding cylinder 42.Therefore, sliding cylinder
42 are supported relative to shell 41 and cylinder part 44 by force downwards due to the force of collapse coil spring 43.In addition, being formed
It is opened in spring storage space portion 69 in the lower end of the oilhole 66 of cylinder part 44.Also, sliding cylinder 42 is formed with from spring and receives
Spatial portion 69 of receiving penetrates into the discharge orifice 70 of 45 side of roller.
Therefore, when supplying working oil to working oil supply mouth 61, working oil connects via chamber 62, check-valves 67, second
Knot flow path 65, first links flow path 64 and is supplied to discharge chambe 59.On the other hand, when the rotation of cam 47, the rotary force of cam 47
Via roller 45 sliding cylinder 42 is passed to as power is moved back and forth.When sliding cylinder 42 moves back and forth, piston 46 is similarly reciprocal
It is mobile, the working oil in discharge chambe 59 is compressed when piston 46 rises.Also, compressed working oil links from first
Flow path 64 is discharged to working oil outlet 63.
Also, the upper end of cylinder part 44 is connected to chamber 62, the lower end of cylinder part 44 be formed with extend downwards and
In the first lubricating oil supply hole (top feed path) 71 of 41 side opening of shell.On the other hand, the lower end of shell 41 via
It is formed in the connectivity slot 55a of key 55 and is connected to the keyway of sliding cylinder 42 53, the upper end of shell 41 is formed with the second lubricating oil
Supply hole (lower part feed path) 72, the second lubricating oil supply hole 72 extend and upward in 44 side openings of cylinder part.First profit
The lower end of lubricating oil supply hole 71 is connected to the upper end of the second lubricating oil supply hole 72.Then, sliding cylinder 42 can be from keyway
53 supply lubricating oil to roller 45 and cam 47 (with reference to Fig. 8).
Fig. 2 is the sectional view for the sliding cylinder for indicating lower part valve device, and Fig. 3 is the right side view of sliding cylinder, and Fig. 4 is
The left side view of sliding cylinder, Fig. 5 are the V-V sectional views of the Fig. 2 for the horizontal cross-section for indicating sliding cylinder, and Fig. 6 is to indicate lower part valve
The front view of transmission device.
As shown in Figures 2 to 5, sliding cylinder 42 is provided with lubricating oil reservoir 80, the first lubricating oil supply road 81 and second
Lubricating oil supplies road 82.
As described above, 42 cylindrical shape of sliding cylinder, storage roller 45 (referring to Fig.1) is formed in the lower end of sliding cylinder 42
Roller incorporating section 91, and sliding cylinder 42 is formed with the support holes 92 of support shaft (diagram omit) perforation for roller 45.In the feelings
Under condition, the center line O1 of sliding cylinder 42 is arranged along upper and lower directions (axial direction), and the axial line O2 of roller 45 hangs down along with the paper of Fig. 2
Straight direction setting, the center line O1 of sliding cylinder 42 are substantially vertical with the axial line O2 of roller 45.In addition, the axial line O2 of roller 45 is logical
Cross it is consistent with the axial line of cam 47, and as parallel.
Also, the peripheral surface of sliding cylinder 42 along upper and lower directions keyway 53 along sliding cylinder 42 center line O1 shapes
At.Lubricating oil reservoir 80 sliding cylinder 42 peripheral surface with the length of keyway 53 (on the directions center line O1 of sliding cylinder 42
Length) circumferentially it is arranged.That is, lubricating oil reservoir 80 is configured to make the peripheral surface of the circumferential sliding cylinder 42 along keyway 53
The recess portion of recess.Therefore, when sliding cylinder 42 is assembled in the sliding part 51 of shell 41, in recess portion and the shell 41 of sliding cylinder 42
Spatial portion is formed between internal face (sliding part 51), which becomes lubricating oil reservoir 80.
First lubricating oil supply road 81 be sliding cylinder 42 peripheral part be provided with along the center line O1 of sliding cylinder 42 it is more
The groove portion of a (being in the present embodiment four).First lubricating oil supplies axial upper end (one end) and the lubrication on road 81
Oily reservoir 80 is connected to, and the axial lower end (the other end) on the first lubricating oil supply road 81 extends to the lower end of sliding cylinder 42
The middle part in portion.The width W that this four the first lubricating oil supply roads 81 are arranged on the directions axial line O2 than roller 45 is more outside
The position of side offset.Also, each first lubricating oil supply road 81 is arranged relative to the axial line O2 of roller 45 in sliding cylinder 42
Symmetric position radially.
If that is, the direction vertical with axial line O2 is defined as axle center in the plane including the axial line O2 comprising roller 45
Line O3, then each first lubricating oil supply road 81 be formed in offset by from axial line O3 to the sides axial line O2 as defined in angle, θ position
It sets.Also, the position on each first lubricating oil supply road 81 is formed in the radial direction of sliding cylinder 42 relative to the axial line O2 of roller 45
On symmetric position, and be also formed in relative to axial line 3 symmetric position radially of sliding cylinder 42.
Second lubricating oil supply road 82 is the circumference groove portion that is circumferentially arranged of peripheral part in sliding cylinder 42.Each first profit
Lower end and second lubricating oil on lubricating oil supply road 81 supply road 82 and intersect and be connected to and the position extended to further below forms
For terminal.
Therefore, as depicted in figs. 1 and 2, when supplying working oil to working oil supply mouth 61, link to second via chamber 62
65 side of flow path supplies working oil, and supplies working oil to 71 side of the first lubricating oil supply hole as lubricating oil.It is supplied to first
The lubricating oil (working oil) of 71 side of lubricating oil supply hole is fed into keyway 53 from the second lubricating oil supply hole 72, is supplied to keyway
53 lubricating oil is stored in lubricating oil reservoir 80.Also, the lubricating oil in lubricating oil reservoir 80 is stored in from each first
Lubricating oil supply road 81 is fed into the second lubricating oil supply road 82 and is supplied to roller 45 and cam 47.
Here, supplied to discharge chambe 59 first working oil feed path of above-mentioned working oil by working oil supply mouth 61,
Chamber 62, second links flow path 65, first and links the composition of flow path 64.On the other hand, using working oil as lubricating oil and to cam
Second working oil feed path of 47 supplies is connect with the working oil feed path in shell 41, and the working oil in the shell 41 supplies
Be formed as in shell 41 axially setting to path and upper end is in 41 side opening of shell, and lower end is towards cam 47
Opening.That is, the second working oil feed path is lubricated by working oil supply mouth 61, chamber 62, the first lubricating oil supply hole 71, second
Oily supply hole 72, key 55, keyway 53, lubricating oil reservoir 80, the first lubricating oil supply road 81, the second lubricating oil supply 82 structure of road
At.
Also, as shown in fig. 6, shell 41 and cylinder part 44 are arranged on the top of camshaft case 101 and are fixed.In the camshaft
The side of case 101, for safeguard the maintenance opening portion 102 of cam 47 (referring to Fig.1), camshaft (diagram omit) etc. with it is each outer
Shell 41 and cylinder part 44 are arranged in correspondence with, and maintenance opening portion 102 is closed by open-close lid 103.Also, for supplying working oil
Working oil supplying tubing 104 in the side of camshaft case 101, configured along horizontal direction, which is each shell 41
The direction arranged with cylinder part 44.Also, working oil supplying tubing 104 via axially supply pipe and make working oil from this
Supply pipe is branched off into each branched pipe 105 of each cylinder part 44 and links with the working oil supply mouth 61 of each cylinder part 44.In the feelings
Under condition, by making the configuration of working oil supplying tubing 104 in the position than each maintenance opening portion 102 closer to top, to not
The upkeep operation of cam 47, camshaft etc. can be interfered.
In this way, in the valve device of present embodiment, it is provided with：Shell 41 and cylinder part 44；Movably
It is supported on the sliding cylinder 42 of shell 41；The piston 46 linked with the upper end of sliding cylinder 42；Act on the lower end of sliding cylinder 42
Roller 45 and make sliding cylinder 42 move cam 47；Pass through the discharge chambe 59 that working oil is compressed in the movement of piston 46；
It is set to the working oil supply mouth 61 of cylinder part 44；A part for working oil is supplied from working oil supply mouth 61 to discharge chambe 59
First working oil feed path；And the second working oil confession of remaining working oil is supplied from working oil supply mouth 61 to cam 47
To path.
Therefore, it is possible to supply working oil from a working oil supply mouth 61 to discharge chambe 59, and can be supplied to cam 47
To the lubricating oil as working oil, make the piping structure letter of the working oil supplying tubing 104 being connect with working oil supply mouth 61 etc.
Change, and the processing of the oil circuit of shell 41 and cylinder part 44 is also simplified, as a result, the simplification of construction can be realized.
In the valve device of present embodiment, shell 41 and cylinder part 44 are fixed on the upper of camshaft case 101
Portion is provided with the maintenance opening portion 102 for safeguarding cam 47 in the side of camshaft case 101, will be used to supply to working oil
To mouth 61 supply the configuration of working oil supplying tubing 104 of working oil than maintenance with opening portion 102 closer to the position of top.Cause
This, working oil supplying tubing 104 will not interfere the operator for the upkeep operation for implementing cam 47 from maintenance opening portion 102, energy
Enough improve workability.
In the valve device of present embodiment, connect being connected to the second of discharge chambe 59 from working oil supply mouth 61
It is provided with check-valves 67 in knot flow path 65.Therefore, working oil from working oil supply mouth 61 by second connection flow path 65 by pressure
Contracting room 59 supplies, and is compressed to working oil in discharge chambe 59 in the rising of piston 46, and from 63 row of working oil outlet
Go out.At this point, so that the compressed working oil in discharge chambe 59 is not flowed back to working oil supply mouth 61 by check-valves 67, energy
It is enough to be properly discharged from working oil outlet 63.
In the valve device of present embodiment, as the second working oil feed path, it is arranged in cylinder part 44
There is the first lubricating oil supply hole 71, and is provided with the second lubricating oil supply hole 72 in shell 41.Therefore, it is possible to make to be formed in
Shell 41 and the feed path of cylinder part 44 simplify.
In the valve device of present embodiment, the peripheral surface of sliding cylinder 42 is provided with keyway 53, will be fixed on
The key 55 of shell 41 is inserted in keyway 53, and keyway 53 and the connectivity slot 55a being arranged in key 55 are configured to the second working oil
Feed path.Therefore, it by the way that the key 55 for being fixed on shell 41 to be inserted in the keyway 53 of sliding cylinder 42, can easily be done
The rotation stop of sliding cylinder 42 is used as the second working oil feed path by the connectivity slot 55a being arranged in keyway 53 and key 55, can be made
Construction simplifies.
Also, in the cross-head type internal combustion engine of present embodiment, it is provided with lower part valve device 31 and passes through
The working oil of valve device 31 and top valve device 32 that exhaust valve 20 is driven from below.Therefore,
When valve device 31 works in lower part, working oil can be supplied to discharge chambe 59, and can supply and lubricate to cam 47
Oil.Further, it is possible to supply working oil from a working oil supply mouth 61 to discharge chambe 59, and conduct can be supplied to cam 47
The lubricating oil of working oil makes the piping structure of the working oil supplying tubing 104 being connect with working oil supply mouth 61 etc. simplify, and
The oil circuit processing of shell 41 and cylinder part 44 is also simplified, as a result, the simplification of construction can be realized, and gas can be improved
The reliability of door transmission device 21.
Symbol description
10 diesel engines (cross-head type internal combustion engine)
11 platens
12 frameworks
13 cylinder laggings
18 pistons
19 combustion chambers
20 exhaust valves
21 valve devices
31 lower part valve devices
32 top valve devices
41 shells (apparatus main body)
42 sliding cylinders
43 collapse coil springs
44 cylinder parts (apparatus main body)
45 rollers (roller portion)
46 pistons
47 cams
48 working oils are piped
53 keyways (the second working oil feed path)
55 keys (the second working oil feed path)
59 discharge chambes
61 working oil supply mouths (the first working oil feed path, the second working oil feed path)
62 chambers (the first working oil feed path, the second working oil feed path)
63 working oil outlets
64 first connection flow paths (the first working oil feed path)
65 second connection flow paths (the first working oil feed path)
67 check-valves
71 first lubricating oil supply holes (the second working oil feed path, top feed path)
72 second lubricating oil supply holes (the second working oil feed path, lower part feed path)
80 lubricating oil reservoirs (the second working oil feed path)
81 first lubricating oil supply road (the second working oil feed path)
82 second lubricating oil supply road (the second working oil feed path)
101 camshaft cases
102 maintenance opening portions
103 open-close lids
104 working oil supplying tubings
Claims (6)
1. a kind of valve device, which is characterized in that have：
Apparatus main body, the apparatus main body include lower case and upper case；
Sliding cylinder, which moves in the axial direction is supported on the lower case freely；
Piston, the piston move in the axial direction and are supported on the upper case freely, and are integrally moved with the sliding cylinder
It is dynamic；
Cam, the cam make the sliding cylinder move；And
Working oil supply unit, the working oil supply unit are set to the upper case and supply working oil to described device main body,
Discharge chambe, the first working oil feed path and the second working oil feed path are formed in the upper case,
The discharge chambe by movement of the piston to a part for the working oil supplied from the working oil supply unit into
Row compression,
The first working oil feed path supplies one of the working oil from the working oil supply unit to the discharge chambe
Point,
The second working oil feed path from the working oil supply unit to the lower case supply the working oil its
Its part.
2. valve device according to claim 1, which is characterized in that
The upper case is set to the top of camshaft case, is provided in the side of the camshaft case and is connected to the cam
Opening portion, for supplied to the working oil supply unit working oil working oil supplying tubing configure than the opening
Position of the portion closer to top.
3. valve device according to claim 1 or 2, which is characterized in that
The first working oil feed path is provided with check-valves, which allows from the working oil supply unit to the pressure
The flowing of the working oil of contracting room and forbid the flowing from the discharge chambe to the working oil of the working oil supply unit,
It is connected to working oil discharge unit between the discharge chambe and the check-valves in the first working oil feed path, the work
Oily discharge unit supplies the compressed working oil discharge in the discharge chambe.
4. according to the valve device described in any one in claims 1 to 3, which is characterized in that
The opening portion of the lower case side in the second working oil feed path and the working oil in the lower case
Feed path connects,
Working oil feed path in the lower case is formed as axially being arranged in the lower case, and the work
It is opened towards the cam in the upper case side opening, the lower end of the working oil feed path upper end of oily feed path
Mouthful.
5. valve device according to claim 4, which is characterized in that
The peripheral surface of the sliding cylinder is provided with keyway axially, the key for being fixed on the lower case is inserted into institute
Keyway is stated, the connectivity slot that the working oil feed path in the lower case has the keyway and is arranged in the key.
6. a kind of cross-head type internal combustion engine, which is characterized in that the cross-head type internal combustion engine has：
Lower part valve device, the lower part valve device application claim 1 to any one in claim 5
Valve device；And
Top valve device, the top valve device is by working oil from the lower part valve device
Exhaust valve is driven.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016044944A JP6703868B2 (en) | 2016-03-08 | 2016-03-08 | Valve gear and crosshead internal combustion engine |
| JP2016-044944 | 2016-03-08 | ||
| PCT/JP2017/008116 WO2017154697A1 (en) | 2016-03-08 | 2017-03-01 | Valve gear and crosshead-type internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108779690A true CN108779690A (en) | 2018-11-09 |
| CN108779690B CN108779690B (en) | 2020-09-11 |
Family
ID=59789397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780003716.9A Active CN108779690B (en) | 2016-03-08 | 2017-03-01 | Valve gear and crosshead internal combustion engine |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP6703868B2 (en) |
| KR (1) | KR102124752B1 (en) |
| CN (1) | CN108779690B (en) |
| WO (1) | WO2017154697A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669355A (en) * | 2020-05-15 | 2021-11-19 | 日本发动机股份有限公司 | Crankshaft and marine engine |
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|---|---|---|---|---|
| JPS55117015A (en) * | 1979-02-28 | 1980-09-09 | Yamaha Motor Co Ltd | Engine |
| JPS61265318A (en) * | 1985-05-20 | 1986-11-25 | Mitsubishi Heavy Ind Ltd | Valve driving device |
| JPH0614414U (en) * | 1991-05-30 | 1994-02-25 | 自動車部品工業株式会社 | Engine hydraulic valve drive |
| JP2000018013A (en) * | 1998-07-03 | 2000-01-18 | Mitsubishi Heavy Ind Ltd | Compression ratio regulator for internal combustion engine |
| CN101415936A (en) * | 2006-04-12 | 2009-04-22 | 曼狄赛尔公司 | Crosshead type large-sized uniflow type two-stroke diesel motor |
| CN102112708A (en) * | 2008-07-14 | 2011-06-29 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | Cam driven exhaust valve actuation system for large two stroke diesel engine |
| CN102859125A (en) * | 2010-04-30 | 2013-01-02 | 瓦锡兰芬兰有限公司 | Control arrangement for a gas exchange valve in a piston engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5412611U (en) * | 1977-06-29 | 1979-01-26 | ||
| JP6091008B2 (en) | 2013-11-18 | 2017-03-08 | 三菱重工業株式会社 | Exhaust valve valve mechanism, diesel engine, and exhaust valve cooling method for exhaust valve valve mechanism |
| KR101911102B1 (en) * | 2013-12-06 | 2018-10-23 | 현대중공업 주식회사 | Variable valve timing apparatus |
-
2016
- 2016-03-08 JP JP2016044944A patent/JP6703868B2/en active Active
-
2017
- 2017-03-01 KR KR1020187011038A patent/KR102124752B1/en active IP Right Grant
- 2017-03-01 WO PCT/JP2017/008116 patent/WO2017154697A1/en active Application Filing
- 2017-03-01 CN CN201780003716.9A patent/CN108779690B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55117015A (en) * | 1979-02-28 | 1980-09-09 | Yamaha Motor Co Ltd | Engine |
| JPS61265318A (en) * | 1985-05-20 | 1986-11-25 | Mitsubishi Heavy Ind Ltd | Valve driving device |
| JPH0614414U (en) * | 1991-05-30 | 1994-02-25 | 自動車部品工業株式会社 | Engine hydraulic valve drive |
| JP2000018013A (en) * | 1998-07-03 | 2000-01-18 | Mitsubishi Heavy Ind Ltd | Compression ratio regulator for internal combustion engine |
| CN101415936A (en) * | 2006-04-12 | 2009-04-22 | 曼狄赛尔公司 | Crosshead type large-sized uniflow type two-stroke diesel motor |
| CN102112708A (en) * | 2008-07-14 | 2011-06-29 | 曼柴油机欧洲股份公司曼柴油机德国分公司 | Cam driven exhaust valve actuation system for large two stroke diesel engine |
| CN102859125A (en) * | 2010-04-30 | 2013-01-02 | 瓦锡兰芬兰有限公司 | Control arrangement for a gas exchange valve in a piston engine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669355A (en) * | 2020-05-15 | 2021-11-19 | 日本发动机股份有限公司 | Crankshaft and marine engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2017160824A (en) | 2017-09-14 |
| KR20180054789A (en) | 2018-05-24 |
| WO2017154697A1 (en) | 2017-09-14 |
| CN108779690B (en) | 2020-09-11 |
| JP6703868B2 (en) | 2020-06-03 |
| KR102124752B1 (en) | 2020-06-19 |
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