CN2934720Y - 2.8L pressurized central-cooling diesel oil engine connection rod - Google Patents
2.8L pressurized central-cooling diesel oil engine connection rod Download PDFInfo
- Publication number
- CN2934720Y CN2934720Y CN 200620076036 CN200620076036U CN2934720Y CN 2934720 Y CN2934720 Y CN 2934720Y CN 200620076036 CN200620076036 CN 200620076036 CN 200620076036 U CN200620076036 U CN 200620076036U CN 2934720 Y CN2934720 Y CN 2934720Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- small end
- cooling diesel
- diesel engine
- trapezoidal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model relates to a connecting rod for 2.8L charge inter-cooling diesel engines. The connecting rod comprises a connecting rod body, butt end of the connecting rod and connecting bolt. The cross-section of the small end is in trapezoidal shape, and the side of the trapezoidal cross-section of the small end and the horizontal face form a 5 degree included angle. The knuckle radius of the lead angle between the connecting rod body and the small end is 70mm, and 9mm for the transverse chamfering. The lateral deviation of the longitudinal axis of the bolt hole is 1.5mm from the vertical horizontal line. The cross-section of the small end of the connecting rod adopts trapezoidal structure, and as a result, the bearing area of the lower surface of the small end of the connecting bar is increased. Large lead-angle transition is adopted between the connecting-rod body and the small end of the connecting rod in order to reduce weight but without losing strength and rigidity. The utility model can not only meet the requirements of rigidity and strength but also meet the requirements of high-speed engines.
Description
Technical field
The utility model relates to automotive engine component, is specifically related to a kind of connecting rod of 2.8L diesel engine.
Background technique
Connecting rod is one of strength member of motor, and its effect is that the power that piston bears is passed to bent axle, thereby makes the to-and-fro motion of piston change rotatablely moving of bent axle into.It is very abominable in the working condition of engine interior.Connecting rod bears gas load and itself swing and the reciprocating inertial force of piston set that wrist pin transmits.The size and Orientation of these power all is periodically variable.What therefore, connecting rod was subjected to is alternate loads such as compression, stretching and bending.This just requires connecting rod under the as far as possible little condition of quality, and enough rigidity and intensity are arranged.At present, for rigidity and the intensity that satisfies connecting rod, make the quality of connecting rod strengthen, thereby can not effectively satisfy the requirement of high speed engine, but when satisfying the high speed engine requirement, present connecting rod can not well satisfy the requirement of connecting rod rigidity and intensity again.
The model utility content
At the deficiencies in the prior art, the utility model has been designed and developed out a kind of rigidity and intensity that can satisfy connecting rod, can satisfy the connecting rod of the 2.8L charge inter cooling diesel engine of high speed engine requirement again.
The utility model is achieved through the following technical solutions:
A kind of connecting rod of 2.8L charge inter cooling diesel engine includes connecting rod shank, connnecting rod big end, connecting rod small end and connecting bolt, and the cross section of its connecting rod small end is trapezoidal.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the trapezoidal cross-section of described connecting rod small end, the waist that it is trapezoidal and the angle of horizontal plane are 3 °～10 °.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the trapezoidal cross-section of described connecting rod small end, the angle optimum value of waist that it is trapezoidal and horizontal plane is 5 °.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the knuckle radius of lead angle is 60mm～80mm between described connecting rod shank and the connecting rod small end, laterally chamfering is 6～12mm.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the knuckle radius optimum value of lead angle is 70mm between described connecting rod shank and the connecting rod small end, laterally the chamfering optimum value is 9mm.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the longitudinal axis of the bolt hole of described connecting bolt and vertical water horizontal line lateral deviation 0.5mm～2mm.
A kind of connecting rod of 2.8L charge inter cooling diesel engine, the longitudinal axis of the bolt hole of described connecting bolt and vertical water horizontal line lateral deviation optimum value are 1.5mm.
The cross section of the utility model connecting rod small end has adopted trapezium structure, thereby has increased the bearing area of connecting rod small end lower surface.Adopt big lead angle transition between connecting rod shank and the connecting rod small end, in the hope of reducing quality obtaining under the enough prerequisites of strength and stiffness.The lateral deviation that is provided with bolt hole longitudinal axis and vertical water horizontal line will make assembling anti-situation under, installs not on, its objective is to prevent when assembling instead with the connecting rod cap dress.
Description of drawings
Fig. 1 is the utility model configuration diagram.
Fig. 2 is the utility model transverse sectional view.
Fig. 3 is the utility model longitudinal sectional drawing.
Embodiment
Embodiment 1
Referring to accompanying drawing 1,2,3.
The connecting rod of the utility model 2.8L charge inter cooling diesel engine, include connecting rod shank 3, connnecting rod big end 2, connecting rod small end 1 and connecting bolt 4, the cross section of its connecting rod small end 1 is for being designed to trapezium structure, thereby increased the bearing area of connecting rod small end 1 lower surface, the waist that it is trapezoidal and the angle of horizontal plane are 5 °.The knuckle radius of lead angle is 70mm between connecting rod shank 3 and the connecting rod small end 1, and laterally chamfering is 9mm.Adopt big lead angle transition between connecting rod shank 3 and the connecting rod small end 1, in the hope of reducing quality obtaining under the enough prerequisites of strength and stiffness.The longitudinal axis of the bolt hole 5 of connecting bolt 4 and vertical water horizontal line lateral deviation 1.5mm its objective is to prevent from when assembling connecting rod cap to be adorned instead.
Embodiment 2
The angle of its trapezoidal waist of connecting rod small end 1 trapezoidal cross-section and horizontal plane is 3 °.The knuckle radius of lead angle is 60mm between connecting rod shank 3 and the connecting rod small end 1, and laterally chamfering is 6mm.The longitudinal axis of the bolt hole 5 of connecting bolt 4 and vertical water horizontal line lateral deviation 0.5mm.All the other are with embodiment 1.
Embodiment 3
The angle of its trapezoidal waist of connecting rod small end 1 trapezoidal cross-section and horizontal plane is 10 °.The knuckle radius of lead angle is 80mm between connecting rod shank 3 and the connecting rod small end 1, and laterally chamfering is 12mm.The longitudinal axis of the bolt hole 5 of connecting bolt 4 and vertical water horizontal line lateral deviation 2mm.All the other are with embodiment 1.
Claims (7)
1, a kind of connecting rod of 2.8L charge inter cooling diesel engine includes connecting rod shank, connnecting rod big end, connecting rod small end and connecting bolt, and the cross section that it is characterized in that connecting rod small end is trapezoidal.
2, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 1 is characterized in that the trapezoidal cross-section of described connecting rod small end, and the waist that it is trapezoidal and the angle of horizontal plane are 3 °～10 °.
3, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 2 is characterized in that the trapezoidal cross-section of described connecting rod small end, and the waist that it is trapezoidal and the angle of horizontal plane are 5 °.
4, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 1, the knuckle radius that it is characterized in that lead angle between described connecting rod shank and the connecting rod small end is 60mm～80mm, laterally chamfering is 6～12mm.
5, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 4, the knuckle radius that it is characterized in that lead angle between described connecting rod shank and the connecting rod small end is 70mm, laterally chamfering is 9mm.
6, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 1 is characterized in that the longitudinal axis and the vertical water horizontal line lateral deviation 0.5mm～2mm of the bolt hole of described connecting bolt.
7, the connecting rod of a kind of 2.8L charge inter cooling diesel engine according to claim 6 is characterized in that the longitudinal axis and the vertical water horizontal line lateral deviation 1.5mm of the bolt hole of described connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620076036 CN2934720Y (en) | 2006-07-26 | 2006-07-26 | 2.8L pressurized central-cooling diesel oil engine connection rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620076036 CN2934720Y (en) | 2006-07-26 | 2006-07-26 | 2.8L pressurized central-cooling diesel oil engine connection rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2934720Y true CN2934720Y (en) | 2007-08-15 |
Family
ID=38351409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620076036 Expired - Lifetime CN2934720Y (en) | 2006-07-26 | 2006-07-26 | 2.8L pressurized central-cooling diesel oil engine connection rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2934720Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134379A1 (en) * | 2010-04-26 | 2011-11-03 | 隆鑫通用动力股份有限公司 | Piston connecting rod structrue |
| CN106224094A (en) * | 2016-08-31 | 2016-12-14 | 河北华北柴油机有限责任公司 | 12 cylinder water-cooled Diesel engines |
-
2006
- 2006-07-26 CN CN 200620076036 patent/CN2934720Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011134379A1 (en) * | 2010-04-26 | 2011-11-03 | 隆鑫通用动力股份有限公司 | Piston connecting rod structrue |
| CN106224094A (en) * | 2016-08-31 | 2016-12-14 | 河北华北柴油机有限责任公司 | 12 cylinder water-cooled Diesel engines |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070815 |
|
| EXPY | Termination of patent right or utility model |