CN106438090A - Low-emission motorcycle engine - Google Patents
Low-emission motorcycle engine Download PDFInfo
- Publication number
- CN106438090A CN106438090A CN201611004774.7A CN201611004774A CN106438090A CN 106438090 A CN106438090 A CN 106438090A CN 201611004774 A CN201611004774 A CN 201611004774A CN 106438090 A CN106438090 A CN 106438090A
- Authority
- CN
- China
- Prior art keywords
- spark plug
- doors
- exhaust
- intake
- 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.)
- Withdrawn
Links
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
- F02F1/24—Cylinder heads
- F02F1/242—Arrangement of spark plugs or injectors
-
- 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
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
-
- 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
- F02F3/00—Pistons
Abstract
The invention discloses a low-emission motorcycle engine. The low-emission motorcycle engine comprises a cylinder, a cylinder cover, and a piston located in the cylinder, wherein intake doors, exhaust doors and a spark plug are arranged on the cylinder cover, and intake door avoidance pits corresponding to the intake doors, exhaust door avoidance pits corresponding to the exhaust doors, and a spark plug avoidance pit corresponding to the spark plug are arranged on the upper end surface of the piston; a frustum is arranged at the centre of the upper end surface of the piston; and on the bottom surface of the cylinder cover: the sides of the intake doors, the exhaust doors and the spark plug are planes, and the planes of the sides of the intake doors, the planes of the sides of the exhaust doors and the plane of the side of the spark plug are in transition connection through arc surfaces. According to the low-emission motorcycle engine disclosed by the invention, a plurality of intake doors and exhaust doors can be arranged because the bottom surface of the cylinder cover at the sides of the intake doors, the exhaust doors and the spark plug is a plane, thus intake efficiency and exhaust efficiency are greatly increased; and the frustum is arranged at the centre of the upper end surface of the piston as a gas extrusion surface, a gas extrusion effect during combustion is improved, and a combustion speed is increased, thus a compression ratio can be greatly increased, and a fuel consumption rate and emission are reduced.
Description
Technical field
The present invention relates to a kind of low emission motorcycle engine.
Background technology
At present, traditional small displacement engine combustor is mach spherical combustion chamber in cylinder head portion, this burning
Squish face cannot be arranged in room, and its shape is difficult to arrange plural valve simultaneously；Combustor is spherical for one in piston portion
Convex shape.Although this types of combustion chamber structure is simple, the electromotor of this kind of combustor has that compression ratio is low, burning
The shortcomings of speed is slow, discharge is poor, fuel consumption is high.
Content of the invention
In order to overcome, existing small displacement engine compression ratio is low, burning velocity is slow, discharge is poor, fuel consumption is high not
Foot, the present invention provides a kind of compression ratio that can greatly improve electromotor, the harmful gas accelerated burning velocity, reduce electromotor simultaneously
Body discharges and increases the thermal efficiency and reduces fuel consumption small-displacement high-power motorcycle engine.
The technical scheme that the present invention solves its technical problem is：A kind of low emission motorcycle engine, including cylinder, cylinder
Lid, connecting rod, bent axle and the piston being located in described cylinder, the small end of described connecting rod is connected with described piston, described connecting rod
Big end be connected with the connecting rod neck of described bent axle；Described cylinder cover is provided with inlet valve, exhaust valve and spark plug, described work
The upper surface of plug is provided with inlet valve avoidance hole corresponding with described inlet valve exhaust valve corresponding with described exhaust valve and keeps away
Hole and spark plug corresponding with described spark plug is allowed to avoid hole；The central authorities of the upper surface of described piston are provided with frustum；Described
On the bottom surface of cylinder cover：Described inlet valve, exhaust valve, the side of spark plug are plane, the plane of described inlet valve side,
Connected with arc surface transition between the plane of described exhaust valve side, the plane of described spark plug side.
Limit further.The described hole that avoids is made up of two chambers, such structure design, and fuel oil burns more abundant.
The beneficial effects of the present invention is：Inlet valve, exhaust valve, the bottom surface of the cylinder cover of spark plug side are in plane, because
This can arrange multiple inlet valves and exhaust valve, greatly improves intake efficiency and exhaust efficiency；The central authorities of the upper surface of described piston
It is provided with frustum as squish face, increase squish effect during burning and improve burning velocity, such that it is able to greatly improve compression ratio, fall
Low burn specific oil consumption and discharge.
Brief description
Fig. 1 is the structural representation of piston upper surface.
Fig. 2 is the structural representation of cylinder cover bottom surface.
Fig. 3 is the structural representation of the present invention.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of low emission motorcycle engine, including cylinder 1, cylinder cover 2, connecting rod, bent axle and
The piston 3 in cylinder 1 being located at, the small end of connecting rod with piston 3 be connected, the big end of connecting rod is connected with the connecting rod neck of bent axle；
Cylinder cover 2 be provided with inlet valve 4, exhaust valve 5 and spark plug 6, piston 3 upper surface be provided with and air inlet
The corresponding inlet valve of door avoid hole 7 with the corresponding exhaust valve of exhaust valve avoid hole 8 and with the corresponding spark plug of spark plug keep away
Allow hole 9；
The central authorities of the upper surface of piston 3 are provided with frustum 10；
On the bottom surface of cylinder cover：Inlet valve 4, exhaust valve 5, the side of spark plug 6 be plane, inlet valve side
Connected with arc surface transition between plane, the plane of exhaust valve side, the plane of spark plug side.
Inlet valve 4, exhaust valve 5, the bottom surface of the cylinder cover of spark plug 6 side are in plane, therefore can arrange multiple inlet valves
And exhaust valve, greatly improve intake efficiency and exhaust efficiency；The central authorities of the upper surface of piston 3 are provided with frustum 10 as squish face,
Increase squish effect during burning and improve burning velocity, such that it is able to greatly improve compression ratio, reduce fuel consumption and discharge.
Preferably avoid hole 7 to be made up of two chambers, such structure design, fuel oil burns more abundant.In fact, also may be used
According to practical situation, the concrete chamber quantity considering avoidance hole 7.
Claims (2)
1. a kind of low emission motorcycle engine, including cylinder, cylinder cover, connecting rod, bent axle and the work being located in described cylinder
Plug, the small end of described connecting rod is connected with described piston, and the big end of described connecting rod is connected with the connecting rod neck of described bent axle；Described
Cylinder cover is provided with inlet valve, exhaust valve and spark plug, and the upper surface of described piston is provided with corresponding with described inlet valve
Inlet valve avoid that hole exhaust valve corresponding with described exhaust valve avoids hole and spark plug corresponding with described spark plug is kept away
Allow hole；It is characterized in that：The central authorities of the upper surface of described piston are provided with frustum；On the bottom surface of described cylinder cover：Described enters
Valve, exhaust valve, the side of spark plug are plane, the plane of described inlet valve side, the plane of described exhaust valve side, institute
State and connected with arc surface transition between the plane of spark plug side.
2. as claimed in claim 1 a kind of low emission motorcycle engine it is characterised in that：The described hole that avoids is by two chambers
Composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004774.7A CN106438090A (en) | 2016-11-15 | 2016-11-15 | Low-emission motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611004774.7A CN106438090A (en) | 2016-11-15 | 2016-11-15 | Low-emission motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438090A true CN106438090A (en) | 2017-02-22 |
Family
ID=58207103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611004774.7A Withdrawn CN106438090A (en) | 2016-11-15 | 2016-11-15 | Low-emission motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438090A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953100A (en) * | 2019-12-13 | 2020-04-03 | 重庆隆鑫机车有限公司 | Motor tricycle engine advances exhaust system and engine |
-
2016
- 2016-11-15 CN CN201611004774.7A patent/CN106438090A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110953100A (en) * | 2019-12-13 | 2020-04-03 | 重庆隆鑫机车有限公司 | Motor tricycle engine advances exhaust system and engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170222 |