CN202073639U - Engine having an eccentric crank mechanism - Google Patents
Engine having an eccentric crank mechanism Download PDFInfo
- Publication number
- CN202073639U CN202073639U CN2011201403711U CN201120140371U CN202073639U CN 202073639 U CN202073639 U CN 202073639U CN 2011201403711 U CN2011201403711 U CN 2011201403711U CN 201120140371 U CN201120140371 U CN 201120140371U CN 202073639 U CN202073639 U CN 202073639U
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- CN
- China
- Prior art keywords
- crank mechanism
- cylinder
- engine
- eccentric crank
- piston
- 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 - Fee Related
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Abstract
The utility relates to engine having an eccentric crank mechanism. The engine comprises a cylinder and an eccentric crank mechanism capable of moving in the cylinder; when the central line of the cylinder and the eccentric crank mechanism are located at the upper stopping point, the offset between the central line of the crank of the eccentric crank mechanism and a crank pin is 4mm. The engine of the utility model can arrange the piston and a connection bar into a straight line when the pressure in the cylinder reaches the maximum, thereby reduces the power loss caused by the friction between the piston and the cylinder wall, and converts the energy generated by combustion furthest into power.
Description
Technical field
The utility model belongs to engine art, specifically relates to a kind of motor that is applied in the offset crank mechanism on tricycle or the motorcycle.
Background technique
The crank mechanism of the motor of prior art, bent axle generally overlaps with cylinder center line with the line at crank pin center when being in top dead center position, the shortcoming that this structure exists is when producing pressure maximum in the cylinder, piston and connecting rod are not point-blank, bigger friction between piston and the cylinder body causes power loss to increase, and has reduced the shaft horsepower of motor.
The model utility content
In order to solve the problem that prior art exists, thereby the utility model provides a kind of motor that the piston resistance promotes the shaft horsepower of motor that reduces.
In order to realize above purpose, the technical solution of the utility model is as follows: a kind of motor of offset crank mechanism, the offset crank mechanism that comprises cylinder body and in cylinder body, move, it is described when cylinder center line and offset crank mechanism are in top dead center position, the center line of the bent axle of offset crank mechanism and the center line of crank pin have a side-play amount, this side-play amount is 3～5mm, and the best is 4mm for side-play amount.
Compared with prior art, this unique design of the utility model makes that piston and connecting rod form straight line when producing pressure maximum in cylinder, thereby reduce the power loss that causes because of piston and cylinder wall friction, the Conversion of energy that produces of will burning to greatest extent is a very strong driving force.
Description of drawings
Fig. 1 is the structural representation of the motor of the utility model offset crank mechanism.
Below, with accompanying drawing the utility model further is described in detail in conjunction with specific embodiments.
Embodiment
As shown in Figure 1, the offset crank mechanism of the utility model motor, it comprises cylinder body 1, the offset crank mechanism 2 that moves in described cylinder body 1.It is 4mm that one parallel offset amount a is arranged between crankshaft axis when described cylinder center line and former crank mechanism are in top dead center position and the crank pin center line, and promptly crankshaft axis and crank pin center line be not on same straight line.This unique design, make when in cylinder, producing pressure maximum, piston and connecting rod form straight line, be crankshaft center, crank pin center, connecting rod small end center point-blank, thereby reduce the power loss that causes because of piston and cylinder wall friction, the Conversion of energy that produces of will burning to greatest extent is a very strong driving force.
Claims (2)
1. the motor of an offset crank mechanism, the offset crank mechanism that comprises cylinder body and in cylinder body, move, it is characterized in that: described when cylinder center line and offset crank mechanism are in top dead center position, have side-play amount between the center line of bent axle and the center line of crank pin, this side-play amount is 3～5mm.
2. the motor of offset crank mechanism according to claim 1 is characterized in that, described side-play amount is 4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201403711U CN202073639U (en) | 2011-05-05 | 2011-05-05 | Engine having an eccentric crank mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201403711U CN202073639U (en) | 2011-05-05 | 2011-05-05 | Engine having an eccentric crank mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202073639U true CN202073639U (en) | 2011-12-14 |
Family
ID=45111746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201403711U Expired - Fee Related CN202073639U (en) | 2011-05-05 | 2011-05-05 | Engine having an eccentric crank mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202073639U (en) |
-
2011
- 2011-05-05 CN CN2011201403711U patent/CN202073639U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20140505 |