CN108661817A - The two-stroke diesel engines cylinder jacket of variable scavenging duration - Google Patents
The two-stroke diesel engines cylinder jacket of variable scavenging duration Download PDFInfo
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- CN108661817A CN108661817A CN201810440724.6A CN201810440724A CN108661817A CN 108661817 A CN108661817 A CN 108661817A CN 201810440724 A CN201810440724 A CN 201810440724A CN 108661817 A CN108661817 A CN 108661817A
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- Prior art keywords
- cylinder jacket
- gear shaping
- sub
- diesel engines
- stroke diesel
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- 230000002000 scavenging effect Effects 0.000 title claims abstract description 46
- 238000010862 gear shaping Methods 0.000 claims abstract description 73
- 239000003921 oil Substances 0.000 claims description 40
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 239000002828 fuel tank Substances 0.000 claims description 3
- 239000010720 hydraulic oil Substances 0.000 claims description 3
- 238000013213 extrapolation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/004—Cylinder liners
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
Present disclose provides a kind of two-stroke diesel engines cylinder jacket of variable scavenging duration, including the first sub- cylinder jacket and second sub- cylinder jacket two parts, the first sub- cylinder jacket and second sub- cylinder jacket two parts are fitting to connection；The chimeric end of the first of first sub- cylinder jacket is equipped with the first annular groove, and the first annular groove includes the first inner wall sleeve and the first outer wall set；First inner wall sleeve is equipped with gear shaping in first；First outer wall is arranged with the first outer gear shaping；The chimeric end of the second of second sub- cylinder jacket is equipped with the second annular groove, and the second annular groove includes the second inner wall sleeve and the second outer wall set；Second inner wall sleeve is equipped with gear shaping in second；Second outer wall is arranged with the second outer gear shaping；Gear shaping is mutually chimeric with the second outer gear shaping in first, and the first outer gear shaping is mutually chimeric with gear shaping in second, constitutes the scavenging port of cylinder jacket.The disclosure is moved up and down by the second sub- cylinder jacket, and adjustment appropriate is made according to actual condition, to change scavenging duration, engine is made to reach the dynamic property, economy and emission performance met the requirements.
Description
Technical field
This disclosure relates to peculiar to vessel the two of two-stroke diesel engines cylinder sleeve field more particularly to a kind of variable scavenging duration
Stroke diesel engine cylinder jacket.
Background technology
Two-stroke diesel engines cylinder jacket lower part was provided with several scavenging ports along one week, and mostly used uniflow scavenging shape greatly
Formula.In descent of piston stroke, air bleeding valve, which is opened, carries out nature exhaust, with continuing traveling downwardly for piston, when piston top edge, more
Specifically when top piston ring top edge makes scavenging port with cylinder interior unicom by scavenging port upper end, scavenging port is opened,
This moment is the scavenging timing moment, and fresh air enters cylinder and carries out the processes such as scavenging, ventilation.Piston continues traveling downwardly, scavenging port
The area of unlatching gradually increases, and lower dead center and uplink are reached after piston fully opens scavenging port, progressively closes off scavenging port.
Scavenging duration directly affect fresh charge in the quality and cylinder of ventilation quality number, and then influence engine
Dynamic property, economy and emission performance.The position of scavenging port is fixed on cylinder sleeve, and the size of scavenging port is also fixed, therefore is swept
The gas duration is also immutable, it is difficult to make appropriate adjustment according to actual conditions, engine is made to reach the power met the requirements
Property, economy and emission performance.
Invention content
(1) technical problems to be solved
Present disclose provides a kind of two-stroke diesel engines cylinder jacket of variable scavenging duration, at least partly to solve
Technical problem set forth above.
(2) technical solution
According to one aspect of the disclosure, a kind of two-stroke diesel engines cylinder of variable scavenging duration is provided
Set, including：First sub- cylinder jacket, including the first fixing end and the first chimeric end；Second sub- cylinder jacket, including the second fixing end and
The second chimeric end at the second chimeric end, the second sub- cylinder jacket is fitting to connection with the first chimeric end of the first sub- cylinder jacket；To be formed
The scavenging port of two-stroke diesel engines cylinder jacket；Motive power device is connect with the second fixing end of the second sub- cylinder jacket.
In some embodiments of the present disclosure, the first chimeric end of the first sub- cylinder jacket is equipped with the first annular groove, the first annular groove
Including the first inner wall sleeve and the first outer wall set；First inner wall sleeve is equipped with gear shaping in first；First outer wall is arranged with the first outer gear shaping；
The chimeric end of the second of second sub- cylinder jacket is equipped with the second annular groove, and the second annular groove includes the second inner wall sleeve and the second outer wall set；Second
Inner wall sleeve is equipped with gear shaping in second；Second outer wall is arranged with the second outer gear shaping；Gear shaping is mutually chimeric with the second outer gear shaping in first, the
One outer gear shaping is mutually chimeric with gear shaping in second.
In some embodiments of the present disclosure, motive power device includes：N hydraulic cylinder, with the second sub- cylinder jacket
Two fixing ends connect, and n hydraulic cylinder is uniformly distributed in the circumferencial direction of the second sub- cylinder jacket, wherein n ＞ 1；Oil pump, oil pump and electricity
Machine is connected；The oil outlet of oil pump is supplied respectively to hydraulic oil to n hydraulic cylinder by n road binders road；Displacement sensor, detection is every respectively
The displacement of a hydraulic cylinder；Proportional reversing valve is connect with n hydraulic cylinder respectively, each hydraulic pressure detected according to displacement sensor
The aperture of the displacement control proportional reversing valve of cylinder.
In some embodiments of the present disclosure, motive power device further includes：First oil filter is arranged in fuel tank and oil pump
Between；Second oil filter is arranged after oil pump；Check valve is arranged between the first oil filter and oil pump；Overflow valve is arranged in oil pump
Branch road between the second oil filter.
In some embodiments of the present disclosure, gear shaping and the first outer gear shaping are arranged around axis interval in first；Second interpolation
Tooth and the second outer gear shaping are arranged around axis interval.
In some embodiments of the present disclosure, the contact rib of the first outer gear shaping and the second outer gear shaping is equipped with chamfering.
In some embodiments of the present disclosure, the interior incline of gear shaping is equipped with chamfering in gear shaping and second in first.
In some embodiments of the present disclosure, the first outer gear shaping, the second outer gear shaping, gear shaping is in gear shaping and second in first
Special-shaped contact surface.
In some embodiments of the present disclosure, contact surface is cambered surface, and the radius of cambered surface is less than in cambered surface a little to cylinder jacket
The distance of axis.
(3) advantageous effect
It can be seen from the above technical proposal that the disclosure can be changed the two-stroke diesel engines cylinder jacket of scavenging duration extremely
One of them or in which a part are had the advantages that less：
The structure of (1) first sub- cylinder jacket and the second sub- cylinder jacket, by two-stroke diesel engines cylinder jacket in scavenging port
Position is divided into two parts, mutually chimeric structure, can by the first sub- cylinder jacket and the second sub- cylinder jacket relatively up and down
It is mobile, change scavenging open height, to change scavenging duration.
(2) gear shaping structure is conducive to the chimeric of the first sub- cylinder jacket and the second sub- cylinder inner room, realizes between cylinder jacket two parts
Metastable movement.
(3) setting of motive power device drives the second sub- cylinder jacket to move up and down and change the height of scavenging port, to
Change scavenging duration, so that scavenging duration is made appropriate adjustment according to actual condition, so that engine is reached and meet the requirements
Dynamic property, economy and emission performance.
(4) setting of displacement sensor and proportional reversing valve, according to the displacement of each hydraulic cylinder of displacement sensor detection
The aperture of amount control proportional reversing valve, and then ensure multiple hydraulic cylinders synchronization action.
(5) setting of overflow valve prevents from generating high pressure due to pumping rear oil duct and blocking the case where and causing danger.
(6) gear shaping is in inner wall sleeve and the upper alternate intervals arrangement of outer wall set, to ensure that inner surface of cylinder liner will not circumferentially occur
Complete broken belt, and then avoid the problem that card resistance occurs for piston.
(7) chamfering being arranged on the contact rib of outer wall set respectively can be convenient for chimeric installation.
(8), there is card resistance and damages when piston ring can be avoided to pass through in the chamfering being arranged on the interior incline of inner wall sleeve respectively
The problem of bad piston ring.
(9) gear shaping contact surface is special-shaped contact surface, and advantageously ensuring that will not rotate after two cylinder jacket are chimeric along axis, simultaneously
Play guiding role when two cylinder jacket are opposite to be moved up and down.
Description of the drawings
Fig. 1 is the assembling structure signal for the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration
Figure.
Fig. 2 is the decomposition texture signal for the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration
Figure.
Fig. 3 is the overlooking structure diagram of Fig. 2.
Fig. 4 is the schematic cross-sectional view in the sections D-D in Fig. 3.
Fig. 5 is the schematic cross-sectional view in the sections E-E in Fig. 4.
Fig. 6 is the motive power device for the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration
Middle hydraulic work system principle schematic.
【Embodiment of the present disclosure main element symbol description in attached drawing】
100- cylinder jacket；
The first sub- cylinder jacket of 110-；
The first outer gear shapings of 111-；Gear shaping in 112- first；
The first fixing ends of 113-；The chimeric ends 114- first；
The second sub- cylinder jacket of 120-；
The second outer gear shapings of 121-；Gear shaping in 122- second；
The second fixing ends of 123-；The chimeric ends 124- second；
130- scavenging ports；
140- motive power devices；
The first oil filters of 141-；142- check valves；
143- oil pumps；144- motors；
The second oil filters of 145-；146- overflow valves；
147,148,149- proportional reversing valves；
1410,1411,1412- hydraulic cylinders；
1413,1414,1415- displacement sensors.
Specific implementation mode
Present disclose provides a kind of two-stroke diesel engines cylinder jacket of variable scavenging duration, including the first sub- cylinder
Set and second sub- cylinder jacket two parts, the first sub- cylinder jacket and second sub- cylinder jacket two parts are fitting to connection；First sub- cylinder jacket
The first chimeric end be equipped with the first annular groove, the first annular groove includes the first inner wall sleeve and the first outer wall set；First inner wall sleeve is equipped with the
Gear shaping in one；First outer wall is arranged with the first outer gear shaping；The chimeric end of the second of second sub- cylinder jacket is equipped with the second annular groove, the second ring
Slot includes the second inner wall sleeve and the second outer wall set；Second inner wall sleeve is equipped with gear shaping in second；Second outer wall is arranged with the second extrapolation
Tooth；Gear shaping is mutually chimeric with the second outer gear shaping in first, and the first outer gear shaping is mutually chimeric with gear shaping in second, constitutes the scavenging of cylinder jacket
Mouthful.The disclosure is moved up and down by the second sub- cylinder jacket, and adjustment appropriate is made according to actual condition, is continued with changing scavenging
Phase makes engine reach the dynamic property, economy and emission performance met the requirements.
To make the purpose, technical scheme and advantage of the disclosure be more clearly understood, below in conjunction with specific embodiment, and reference
The disclosure is further described in attached drawing.
Disclosure some embodiments will be done with reference to appended attached drawing in rear and more comprehensively describe to property, some of but not complete
The embodiment in portion will be shown.In fact, the various embodiments of the disclosure can be realized in many different forms, and should not be construed
To be limited to this several illustrated embodiment；Relatively, these embodiments are provided so that the disclosure meets applicable legal requirement.
In an exemplary embodiment of the disclosure, a kind of two-stroke diesel peculiar to vessel of variable scavenging duration is provided
Machine cylinder jacket.Fig. 1 is that the decomposition texture for the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration shows
It is intended to.Fig. 2 is the assembling structure schematic diagram for the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration.
Fig. 3 is the overlooking structure diagram of Fig. 2.Fig. 4 is the schematic cross-sectional view in the sections D-D in Fig. 3.Fig. 5 is the sections E-E in Fig. 4
Schematic cross-sectional view.Fig. 6 is the dynamic of the two-stroke diesel engines cylinder jacket that the embodiment of the present disclosure can be changed scavenging duration
Hydraulic work system principle schematic in force supporting device.As shown in Figures 1 to 6, including：First sub- cylinder jacket 110 and the second son
Cylinder jacket 120；First sub- cylinder jacket 110, including the first fixing end 113 and first are fitted into end 114；First sub- cylinder jacket 110
First chimeric end 114 is equipped with the first annular groove, and the first annular groove includes the first inner wall sleeve and the first outer wall set, and the first inner wall sleeve is equipped with the
Gear shaping 112 in one, the first outer wall are arranged with the first outer gear shaping 111；Second sub- cylinder jacket 120, including the second chimeric end 124 and the
Two fixing ends 123, the second chimeric end 124 of the second sub- cylinder jacket 120 and the first chimeric end 114 of the first sub- cylinder jacket 110 are embedding
Close connection, the second chimeric end 124 of the second sub- cylinder jacket 120 is equipped with the second annular groove, and the second annular groove includes the second inner wall sleeve and the
Two outer wall sets, the second inner wall sleeve are equipped with gear shaping 122 in second, and the second outer wall is arranged with the second outer gear shaping 121.Gear shaping in first
112 is mutually chimeric with the second outer gear shaping 121, and the first outer gear shaping 111 is mutually chimeric with gear shaping in second 122 to constitute sweeping for cylinder jacket 100
Gas port 130.Here the gear shaping structure for using inside and outside bilayer, is conducive to embedding between the first sub- cylinder jacket 110 and the second sub- cylinder jacket 120
It closes, realizes the metastable movement between cylinder jacket two parts.Further include motive power device 140, with the second sub- cylinder jacket 120
The second fixing end 123 connection, drive the second sub- cylinder jacket 120 move up and down, allow scavenging duration according to actual condition
Appropriate adjustment is made, engine is made to reach the dynamic property, economy and emission performance met the requirements.Gear shaping is in inner wall sleeve and outer wall set
Upper alternating is alternatively arranged, and to ensure that complete broken belt will not circumferentially occur in inner surface of cylinder liner, and then avoids piston that card resistance occurs
The problem of.The chamfering being arranged on the contact rib of outer wall set respectively can be convenient for chimeric installation.Respectively in the interior incline of inner wall sleeve
The chamfering of upper setting can avoid the problem that occurring card resistance when piston ring passes through and damage piston ring.Gear shaping contact surface can be
A variety of abnormal shape contact surface shapes, advantageously ensuring that will not rotate after two cylinder jacket are chimeric along axis, while play in two cylinder jacket
Guiding role when lower mobile；Here the gear shaping contact surface shape selected is cambered surface, and the wherein radius of cambered surface is less than one in cambered surface
It puts to the distance of bore axis.
The motive power device 140 provided in specific embodiment may include：Hydraulic cylinder 1410, hydraulic cylinder 1411, hydraulic pressure
Cylinder 1412, oil pump 143, displacement sensor 1413, displacement sensor 1414, displacement sensor 1415, proportional reversing valve 147, ratio
Example reversal valve 148, proportional reversing valve 149, the first oil filter 141, the second oil filter 145, check valve 142 and overflow valve 146；This
Hydraulic cylinder is 3 in embodiment, is connect respectively with the second fixing end 123 of the second sub- cylinder jacket 120, hydraulic cylinder 1410, hydraulic pressure
Cylinder 1411 and hydraulic cylinder 1412 are uniformly distributed connection in the circumferencial direction of the second sub- cylinder jacket 120；Oil pump 143 is driven by motor 144
It is dynamic；The oil outlet of oil pump 143 is supplied respectively to hydraulic oil to hydraulic cylinder 1410, hydraulic cylinder 1411 and hydraulic cylinder by n road binders road
1412；Displacement sensor 1413, displacement sensor 1414, displacement sensor 1415 detect the hydraulic cylinder being attached thereto respectively
1410, the displacement of hydraulic cylinder 1411 and hydraulic cylinder 1412；Proportional reversing valve 147, proportional reversing valve 148 and proportional reversing valve
149 connect with hydraulic cylinder 1410, hydraulic cylinder 1411 and hydraulic cylinder 1412 respectively, according to displacement sensor 1413, displacement sensor
1414, the aperture of the displacement control proportional reversing valve for each hydraulic cylinder that displacement sensor 1415 detects, ensures multiple hydraulic pressure
Cylinder synchronization action；First oil filter 141 is arranged between fuel tank and oil pump 143；Second oil filter 145 is arranged after oil pump 143；It is single
It is arranged between the first oil filter 141 and oil pump 143 to valve 142；Overflow valve 146 is arranged between oil pump 143 and the second oil filter 145
Branch road.
So far, attached drawing is had been combined the embodiment of the present disclosure is described in detail.It should be noted that in attached drawing or saying
In bright book text, the realization method for not being painted or describing is form known to a person of ordinary skill in the art in technical field, and
It is not described in detail.In addition, the above-mentioned definition to each element and method be not limited in mentioning in embodiment it is various specific
Structure, shape or mode, those of ordinary skill in the art simply can be changed or replaced to it.
According to above description, those skilled in the art should can be changed the disclosure two-stroke diesel peculiar to vessel of scavenging duration
Machine cylinder has been cased with clear understanding.
In conclusion the disclosure provides a kind of two-stroke diesel engines cylinder jacket of variable scavenging duration, it will be existing
Two-stroke diesel engines cylinder jacket is divided into two parts, the respectively first sub- cylinder jacket and the second sub- cylinder in scavenging port position
Set is realized by inside and outside bilateral gear shaping structure and is fitted into, and is driven the second sub- cylinder jacket to move up and down by motive power device, is made to sweep
The gas duration can make appropriate adjustment according to actual condition, and engine is made to reach the dynamic property, economy and row met the requirements
Putting property.
It should also be noted that, the direction term mentioned in embodiment, for example, "upper", "lower", "front", "rear", " left side ",
" right side " etc. is only the direction of refer to the attached drawing, not is used for limiting the protection domain of the disclosure.Through attached drawing, identical element by
Same or similar reference numeral indicates.When that understanding of this disclosure may be caused to cause to obscure, conventional structure will be omitted
Or construction.
And the shape and size of each component do not reflect actual size and ratio in figure, and only illustrate the embodiment of the present disclosure
Content.In addition, in the claims, any reference mark between bracket should not be configured to the limit to claim
System.
It unless there are known entitled phase otherwise anticipates, the numerical parameter in this specification and appended claims is approximation, energy
Enough required characteristic changings according to as obtained by content of this disclosure.Specifically, all be used in specification and claim
The number of the middle content for indicating composition, reaction condition etc., it is thus understood that repaiied by the term of " about " in all situations
Decorations.Under normal circumstances, the meaning expressed refers to including by specific quantity ± 10% variation in some embodiments, at some
± 5% variation in embodiment, ± 1% variation in some embodiments, in some embodiments ± 0.5% variation.
Furthermore word "comprising" does not exclude the presence of element or step not listed in the claims.Before element
Word "a" or "an" does not exclude the presence of multiple such elements.
The word of specification and ordinal number such as " first ", " second ", " third " etc. used in claim, with modification
Corresponding element, itself is not meant to that the element has any ordinal number, does not also represent the suitable of a certain element and another element
Sequence in sequence or manufacturing method, the use of those ordinal numbers are only used for enabling the element with certain name and another tool
There is the element of identical name that can make clear differentiation.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each open aspect,
Above in the description of the exemplary embodiment of the disclosure, each feature of the disclosure is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the method for the disclosure should be construed to reflect following intention：It is i.e. required to protect
The disclosure of shield requires features more more than the feature being expressly recited in each claim.More precisely, as following
Claims reflect as, open aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific implementation mode are expressly incorporated in the specific implementation mode, wherein each claim itself
All as the separate embodiments of the disclosure.
Particular embodiments described above has carried out further in detail the purpose, technical solution and advantageous effect of the disclosure
It describes in detail bright, it should be understood that the foregoing is merely the specific embodiment of the disclosure, is not limited to the disclosure, it is all
Within the spirit and principle of the disclosure, any modification, equivalent substitution, improvement and etc. done should be included in the guarantor of the disclosure
Within the scope of shield.
Claims (9)
1. a kind of two-stroke diesel engines cylinder jacket of variable scavenging duration, including：
First sub- cylinder jacket, including the first fixing end and the first chimeric end；
Second sub- cylinder jacket, including the second fixing end and the second chimeric end, the second chimeric end of the second sub- cylinder jacket and institute
The the first chimeric end for stating the first sub- cylinder jacket is fitting to connection；To form the scavenging port of the two-stroke diesel engines cylinder jacket；
Motive power device is connect with the second fixing end of the described second sub- cylinder jacket.
2. two-stroke diesel engines cylinder jacket according to claim 1, wherein
The chimeric end of the first of the first sub- cylinder jacket is equipped with the first annular groove, and first annular groove includes the first inner wall sleeve and first
Outer wall set；First inner wall sleeve is equipped with gear shaping in first；First outer wall is arranged with the first outer gear shaping；
The chimeric end of the second of the second sub- cylinder jacket is equipped with the second annular groove, and second annular groove includes the second inner wall sleeve and second
Outer wall set；Second inner wall sleeve is equipped with gear shaping in second；Second outer wall is arranged with the second outer gear shaping；
Gear shaping is mutually chimeric with the described second outer gear shaping in described first, and gear shaping is mutually embedding in the first outer gear shaping and described second
It closes.
3. two-stroke diesel engines cylinder jacket according to claim 1, the motive power device include：
N hydraulic cylinder is connect with the second fixing end of the described second sub- cylinder jacket, and the n hydraulic cylinders are in the described second sub- gas
The circumferencial direction of cylinder sleeve is uniformly distributed, wherein n ＞ 1；
Oil pump, the oil pump are connected to the motor；The oil outlet of the oil pump is supplied respectively to hydraulic oil to n liquid by n road binders road
Cylinder pressure；
Displacement sensor detects the displacement of each hydraulic cylinder respectively；
Proportional reversing valve is connect with n hydraulic cylinder respectively, according to the displacement of each hydraulic cylinder of institute's displacement sensors detection
Control the aperture of the proportional reversing valve.
4. two-stroke diesel engines cylinder jacket according to claim 3, the motive power device further include：
First oil filter is arranged between fuel tank and the oil pump；
Second oil filter is arranged after the oil pump；
Check valve is arranged between first oil filter and the oil pump；
Overflow valve, setting is on the oil pump and the roads the second oil filter Jian Zhi.
5. two-stroke diesel engines cylinder jacket according to claim 2, wherein gear shaping and described first in described first
Outer gear shaping is arranged around axis interval；Gear shaping is arranged with the described second outer gear shaping around axis interval in described second.
6. two-stroke diesel engines cylinder jacket according to claim 2, wherein the first outer gear shaping and described second
The contact rib of outer gear shaping is equipped with chamfering.
7. two-stroke diesel engines cylinder jacket according to claim 2, wherein gear shaping and described second in described first
The interior incline of interior gear shaping is equipped with chamfering.
8. two-stroke diesel engines cylinder jacket according to claim 2, wherein the first outer gear shaping, the second extrapolation
Tooth, gear shaping is special-shaped contact surface in gear shaping and second in first.
9. two-stroke diesel engines cylinder jacket according to claim 8, wherein the contact surface is cambered surface, the arc
The radius in face is less than in cambered surface a little to the distance of bore axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440724.6A CN108661817B (en) | 2018-05-10 | 2018-05-10 | Marine two-stroke diesel engine cylinder sleeve with variable scavenging duration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440724.6A CN108661817B (en) | 2018-05-10 | 2018-05-10 | Marine two-stroke diesel engine cylinder sleeve with variable scavenging duration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661817A true CN108661817A (en) | 2018-10-16 |
| CN108661817B CN108661817B (en) | 2023-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810440724.6A Active CN108661817B (en) | 2018-05-10 | 2018-05-10 | Marine two-stroke diesel engine cylinder sleeve with variable scavenging duration |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638512A (en) * | 1979-09-05 | 1981-04-13 | Mitsubishi Heavy Ind Ltd | Two-cycle internal combustion engine |
| JPS59192824A (en) * | 1983-04-16 | 1984-11-01 | Hitachi Zosen Corp | Inner sleeve type scavenge and exhaust control valve |
| US5000133A (en) * | 1989-05-09 | 1991-03-19 | Isuzu Motors Limited | Two-cycle heat-insulating engine |
| CN1239180A (en) * | 1998-06-15 | 1999-12-22 | 瓦特西拉Nsd施韦兹公司 | Diesel engine |
| CN105715357A (en) * | 2014-12-22 | 2016-06-29 | 温特图尔汽柴油公司 | Cylinder assembly and throttle element for a cylinder liner |
| CN208236507U (en) * | 2018-05-10 | 2018-12-14 | 天津大学 | The two-stroke diesel engines cylinder jacket of variable scavenging duration |
-
2018
- 2018-05-10 CN CN201810440724.6A patent/CN108661817B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5638512A (en) * | 1979-09-05 | 1981-04-13 | Mitsubishi Heavy Ind Ltd | Two-cycle internal combustion engine |
| JPS59192824A (en) * | 1983-04-16 | 1984-11-01 | Hitachi Zosen Corp | Inner sleeve type scavenge and exhaust control valve |
| US5000133A (en) * | 1989-05-09 | 1991-03-19 | Isuzu Motors Limited | Two-cycle heat-insulating engine |
| CN1239180A (en) * | 1998-06-15 | 1999-12-22 | 瓦特西拉Nsd施韦兹公司 | Diesel engine |
| CN105715357A (en) * | 2014-12-22 | 2016-06-29 | 温特图尔汽柴油公司 | Cylinder assembly and throttle element for a cylinder liner |
| CN208236507U (en) * | 2018-05-10 | 2018-12-14 | 天津大学 | The two-stroke diesel engines cylinder jacket of variable scavenging duration |
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| Publication number | Publication date |
|---|---|
| CN108661817B (en) | 2023-11-03 |
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