CN2528944Y - Dry multi-cylinder diesel engine body for limitting cylinder centre distance - Google Patents
Dry multi-cylinder diesel engine body for limitting cylinder centre distance Download PDFInfo
- Publication number
- CN2528944Y CN2528944Y CN 01221745 CN01221745U CN2528944Y CN 2528944 Y CN2528944 Y CN 2528944Y CN 01221745 CN01221745 CN 01221745 CN 01221745 U CN01221745 U CN 01221745U CN 2528944 Y CN2528944 Y CN 2528944Y
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- China
- Prior art keywords
- cylinder
- diesel engine
- engine body
- centre distance
- internal diameter
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- 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.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a multi-cylinder diesel engine with limitation of cylinder centre distance of 127 plus or minus 0.5mm. On the condition that the appearance and size of the cylinder maintains unchangeable, a cylinder sleeve and the engine body are integrated into a whole to improve rigidity of the engine body, meanwhile, the thin-wall cylinder sleeve is embedded in a cylinder hole of the engine body to solve the problem related to hard wearing. Therefore, cylinder distortion can be avoided and performance of the diesel engine can be improved; meanwhile, as the cylinder sleeve is integrated with the engine body, diesel engine power can be improved by enlarging delivery capacity of the diesel engine realized by further expanding of internal diameter size of the cylinder under the condition that cylinder centre distance remains equal.
Description
(1) technical field:
The utility model belongs to field of internal combustion engine, relates to a kind of dry type multi-cylinder diesel engine body that limits bore spacing.
(2) background technique:
The widely used multi-cylinder diesel engine of China adopts mostly than the wet type body that is easier to cast at present.The rigidity of this body is relatively poor.Because the cylinder block rigidity of diesel engine is very big to the diesel engine performance influence, so adopt the wet type body to make the performance of diesel engine be subjected to certain influence.Because the cylinder liner of wet type body is assembled on the body, and cylinder liner itself needs certain thickness, next door between cylinder liner cylindrical and the body two adjacent cylinder also needs to reserve enough water channels of crossing, and this just makes the internal diameter size of its cylinder-bore under identical cylinder core distance situation be restricted.In general, cylinder diameter is big more, and the cylinder liner wall thickness is thick more, crosses water channel and also wishes to widen, and under the constant prerequisite of cylinder core distance, if want to increase cylinder diameter, has only the next door between the attenuate body two adjacent cylinder to realize.And the attenuate next door will make the rigidity variation of body, and the distortion of cylinder liner when causing work easily causes diesel engine work reliability to degenerate.
(3) summary of the invention:
The purpose of this utility model is to provide a kind of dry type multi-cylinder diesel engine body that limits bore spacing.
The technical solution of the utility model is: a kind of dry type multi-cylinder diesel engine body that limits bore spacing, form by body and thin wall cylinder cover, it is characterized in that: limiting adjacent two bore spacings of body is 127 ± 0.5mm, the cylinder bore that can further enlarge diesel engine is to increase the discharge capacity of diesel engine, thereby further improve the power of diesel engine, also improve simultaneously the rigidity of body, improved the performance of diesel engine.In order to solve the selection needs of wear-resisting problem and difference cylinder diameter, can 3 kinds of thin wall cylinder covers of insert in the cylinder-bore of body.First kind of cylinder liner internal diameter is that Φ 105 ± 0.2mm, external diameter are Φ 110 ± 0.2mm; Second kind of cylinder liner internal diameter is that Φ 108 ± 0.2mm, external diameter are Φ 113 ± 0.2mm; The third cylinder liner internal diameter is that Φ 110 ± 0.2mm, external diameter are Φ 114 ± 0.2mm.
Because body rigidity is improved, thereby reduced the distortion of cylinder liner, improved the sealing between piston, piston ring and the cylinder liner, make the gas in the cylinder, particularly the problem of scurrying in the crankcase under the gas after the burning is solved preferably, the oil temperature of oil sump is also controlled preferably, makes the lubricating condition of diesel engine improve.Owing to the minimizing of gas blowby body down, the wear problem that is heated of piston, piston ring, cylinder liner also improves.
(4) description of drawings:
Fig. 1 is a wet type body partial structurtes cut-away view in the prior art.
Fig. 2 is the utility model partial structurtes cut-away views.
(5) embodiment:
A kind of dry type multi-cylinder diesel engine body that limits bore spacing is made up of body and thin wall cylinder cover.The centre distance that limits adjacent two cylinders is 127 ± 0.5mm, in order to solve the selection needs of wear-resisting problem and difference cylinder diameter, but the thin wall cylinder cover of 3 kinds of different sizes of insert in the body.First kind of cylinder liner internal diameter is that Φ 105 ± 0.2mm, external diameter are Φ 110 ± 0.2mm; Second kind of cylinder liner internal diameter is that Φ 108 ± 0.2mm, external diameter are Φ 113 ± 0.2mm; The third cylinder liner internal diameter is that Φ 110 ± 0.2mm, external diameter are Φ 114 ± 0.2mm.
In the prior art, wet liner 2 is pressed in the wet type body 1, rubber seal 3 sealing cooling waters.The utility model, the cylinder-bore of the dry type multi-cylinder diesel engine body 4 of qualification bore spacing is bumped into thin wall cylinder cover 5 in the dry type body 4 after machining.
Claims (2)
1, a kind of dry type multi-cylinder diesel engine body that limits bore spacing is made up of body and thin wall cylinder cover, it is characterized in that: limiting adjacent two bore spacings of body is 127 ± 0.5mm.
2, diesel-engine body according to claim 1 is characterized in that: can 3 kinds of thin wall cylinder cover of insert in the cylinder-bore, and first kind of cylinder liner internal diameter is that Φ 105 ± 0.2mm, external diameter are Φ 110 ± 0.2mm; Second kind of cylinder liner internal diameter is that Φ 108 ± 0.2mm, external diameter are Φ 113 ± 0.2mm; The third cylinder liner internal diameter is that Φ 110 ± 0.2mm, external diameter are Φ 114 ± 0.2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221745 CN2528944Y (en) | 2001-04-22 | 2001-04-22 | Dry multi-cylinder diesel engine body for limitting cylinder centre distance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01221745 CN2528944Y (en) | 2001-04-22 | 2001-04-22 | Dry multi-cylinder diesel engine body for limitting cylinder centre distance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2528944Y true CN2528944Y (en) | 2003-01-01 |
Family
ID=33638897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01221745 Expired - Fee Related CN2528944Y (en) | 2001-04-22 | 2001-04-22 | Dry multi-cylinder diesel engine body for limitting cylinder centre distance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2528944Y (en) |
-
2001
- 2001-04-22 CN CN 01221745 patent/CN2528944Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |