CN2554366Y - Wet cylinder casing multi-cylinder diesel engine for limitting cylinder stroke and center spacing - Google Patents
Wet cylinder casing multi-cylinder diesel engine for limitting cylinder stroke and center spacing Download PDFInfo
- Publication number
- CN2554366Y CN2554366Y CN 01252264 CN01252264U CN2554366Y CN 2554366 Y CN2554366 Y CN 2554366Y CN 01252264 CN01252264 CN 01252264 CN 01252264 U CN01252264 U CN 01252264U CN 2554366 Y CN2554366 Y CN 2554366Y
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- cylinder
- diesel engine
- wet
- stroke
- minus
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- Expired - Fee Related
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Abstract
The utility model relates to a wet-style cylinder sleeve multi-cylinder diesel engine which can limit cylinder stroke and the center-distance between neighboring cylinders, comprising a cylinder body, a cylinder sleeve, a piston and a crankshaft, etc. parts. The internal diameter of a wet-style cylinder sleeve embedded in a cylinder hole is Phi 105 mm plus / minus 0.5 mm, and the center-distance of neighboring cylinders is 127 mm plus / minus 0.5 mm. The cylinder stroke of the diesel engine can be raised to 135 mm plus / minus 0.5 mm from 125 mm plus / minus 0.5 mm on a condition that the form and structural size of the cylinder body parts of the diesel engine are not changed, so as to enlarge the discharge of the diesel engine and enhance the power of the diesel engine, as well as improve diesel engine capability simultaneously.
Description
(1) technical field:
The utility model belongs to field of internal combustion engine, relates to a kind of wet cylinder liner multi-cylinder diesel engine that limits cylinder stroke and adjacent cylinder centre distance.
(2) background technique:
At present, China's internal-combustion engine industry is extensive use of the power that the way that enlarges cylinder bore and increase cylinder stroke improves diesel engine, increases the diesel engine power coverage rate.But because original diesel engine body structure and the pro forma restriction of cylinder sleeve, the cylinder bore of diesel engine and cylinder stroke have just reached the limit after expanding to a certain degree, could realize otherwise will carry out very big change to diesel engine general arrangement and processing technology.Especially after adopting the measure that increases cylinder stroke, directly increased connecting rod running orbit scope, and directly having influenced the cylinder block total height of diesel engine, the result often will increase the cylinder block height dimension of diesel engine and the cylinder block profile is carried out could realizing after the bigger change.
(3) summary of the invention:
It is a kind of rational in infrastructure that the purpose of this utility model is to provide, and under the situation that limits adjacent cylinder centre distance, cylinder stroke is the wet cylinder liner multi-cylinder diesel engine of 135mm ± 0.5mm.
The utility model adopts following technological scheme to realize above-mentioned purpose: show through test of many times, the cylinder stroke of diesel engine is defined as 135mm ± 0.5mm, bore spacing is defined as 127mm ± 0.5mm, insert wet liner in this cylinder block cylinder-bore, piston is reciprocating in cylinder liner by crankshaft ﹠ connecting, and the internal diameter of its cylinder liner is Ф 105mm ± 0.5mm.With distance (the be piston compression height) minimizing 5mm ± 0.5mm of piston pin hole center in the piston details to the piston combustion bowl end face, be reduced to 62.5mm ± 0.5mm by 67.5mm ± 0.5mm, simultaneously crankshaft of diesel engine connecting rod turning radius is increased 5mm ± 0.5mm, increase to 67.5mm ± 0.5mm by 62.5mm ± 0.5mm, thereby realized that under the prerequisite that does not change cylinder block height dimension and profile, the utility model compared with prior art can reach following beneficial effect:
1, under the prerequisite that does not change cylinder block part profile and physical dimension, the cylinder of diesel engine stroke is defined as 135mm ± 0.5mm, thereby has increased the discharge capacity of diesel engine, improved the power of diesel engine.
2, improved the low speed segment working procedure and the low-speed torque characteristic of diesel engine, diesel engine performance is greatly improved; Under the prerequisite that increases diesel engine weight hardly, increased diesel engine power 8% simultaneously, made the utility model reach the social benefit of energy-saving material-saving.
(4) description of drawings: Fig. 1 is a structural representation of the present utility model.
(5) embodiment:
The cylinder stroke of diesel engine is defined as 135mm ± 0.5mm, and adjacent cylinder centre distance is defined as 127mm ± 0.5mm, insert wet liner 2 in this cylinder block 1 cylinder-bore, and the internal diameter of its cylinder liner is Ф 105mm ± 0.5mm; With distance h (the be piston compression height) minimizing 5mm ± 0.5mm of piston pin hole center in the piston 3 to the piston combustion bowl end face, be reduced to 62.5mm ± 0.5mm by 67.5mm ± 0.5mm, connecting rod 5 turning radius R with crankshaft of diesel engine 4 increase 5mm simultaneously, increase to 67.5mm ± 0.5mm by 62.5mm ± 0.5mm, thereby be implemented under the prerequisite that does not change cylinder block height dimension and profile, the diesel engine stroke increases to 135mm ± 0.5mm by 125mm ± 0.5mm.
Claims (2)
1, a kind of wet cylinder liner multi-cylinder diesel engine that limits cylinder stroke and centre distance, insert wet liner in the cylinder block cylinder-bore, piston is reciprocating in cylinder liner by crankshaft ﹠ connecting, it is characterized in that: the cylinder stroke of diesel engine is defined as 135mm ± 0.5mm, and adjacent cylinder centre distance is defined as 127mm ± 0.5mm in the cylinder block.
2, diesel engine according to claim 1 is characterized in that: the internal diameter of the wet liner of insert is Ф 105mm ± 0.5mm in its cylinder block cylinder-bore.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01252264 CN2554366Y (en) | 2001-10-27 | 2001-10-27 | Wet cylinder casing multi-cylinder diesel engine for limitting cylinder stroke and center spacing |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 01252264 CN2554366Y (en) | 2001-10-27 | 2001-10-27 | Wet cylinder casing multi-cylinder diesel engine for limitting cylinder stroke and center spacing |
Publications (1)
Publication Number | Publication Date |
---|---|
CN2554366Y true CN2554366Y (en) | 2003-06-04 |
Family
ID=33662016
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 01252264 Expired - Fee Related CN2554366Y (en) | 2001-10-27 | 2001-10-27 | Wet cylinder casing multi-cylinder diesel engine for limitting cylinder stroke and center spacing |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN2554366Y (en) |
-
2001
- 2001-10-27 CN CN 01252264 patent/CN2554366Y/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 |