CN105927366B - Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street - Google Patents
Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street Download PDFInfo
- Publication number
- CN105927366B CN105927366B CN201610476534.0A CN201610476534A CN105927366B CN 105927366 B CN105927366 B CN 105927366B CN 201610476534 A CN201610476534 A CN 201610476534A CN 105927366 B CN105927366 B CN 105927366B
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- exhaust
- air intake
- ducts
- duct
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/08—Other engines characterised by special shape or construction of combustion chambers to improve operation with positive ignition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Characterised By The Charging Evacuation (AREA)
Abstract
The invention discloses a kind of 150ml discharge capacity streets to run motorcycle engine air flue combustion chamber, including combustion chamber, air intake duct, exhaust duct and spark plug, air intake duct and exhaust duct are respectively twice and communicate with combustion chamber, two air intake ducts and two exhaust ducts are symmetrical arranged along by the vertical section at combustion chamber center, and two air intake ducts first merge along airintake direction and separate and formed when close to combustion chamber；Two exhaust ducts gradually converge when far from combustion chamber along discharge directions to be linked together；Suction valve cone, exhaust valve seat, inlet valve conduit and exhaust valve guide are also respectively corresponding two.The air inlet angle of two air intake ducts is 31.5 °.This structure can effectively improve the high-speed power and engine peak speed of engine, be particularly suitable for street and run motorcycle.
Description
Technical field
It is improved the present invention relates to engine combustion chamber structure more particularly to motorcycle engine is run in a kind of 150ml discharge capacity street
Air flue combustion chamber belongs to engine chamber technical field.
Background technique
Engine chamber is device of the fuel in wherein burning generation high-temperature fuel gas, it isEngineImportant component.
?Gasoline engineCylinder head bottom surface is usually cast with arc pit, these pits are combustion chamber.Piston reachesTop dead centreIts top afterwards
WithCylinder coverSpace between pit, fuel burn herein.With combustion chamber associated also air intake duct, exhaust duct and spark
Plug, air intake duct is for inputting gaseous mixture into combustion chamber, and the exhaust gas after exhaust duct is used to burn is discharged, and spark plug is then used for
Igniting.Since combustion chamber and intake and exhaust are directly related to the kinetic factor and output power of an engine, combustion chamber and
Intake and exhaust design is in the design process of engine in occupation of highly important status.Those skilled in the art have been devoted to rub
The improvement design of motorcycle engine chamber, it is higher dynamic to obtain in the identical situation of engine other parameters
Power performance and power output.Especially for motorcycle sport car, the common motorcycle of speedy carding process power ratio has higher requirement.Such as
Fruit simply uses traditional chamber structure, it is clear that is difficult to meet requirement.
Summary of the invention
In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a kind of 150ml discharge capacity streets to run motor
Car engine air flue combustion chamber, this structure can effectively improve the high-speed power and engine peak speed of engine, be particularly suitable for
Run motorcycle in street.
To achieve the goals above, The technical solution adopted by the invention is as follows:
Run motorcycle engine air flue combustion chamber, including combustion chamber, air intake duct, exhaust duct and fire in a kind of 150ml discharge capacity street
The oral area of Hua Sai, air intake duct and combustion chamber is equipped with suction valve cone, and the oral area of exhaust duct and combustion chamber is equipped with exhaust valve
Seat, is equipped with the inlet valve conduit with suction valve cone face on air intake duct, and the row with exhaust valve seat face is equipped on exhaust duct
Valve guide bushing；It is characterized by: the air intake duct and exhaust duct are respectively twice and communicate with combustion chamber, two air intake ducts and two rows
Air flue is symmetrical arranged along by the vertical section at combustion chamber center, and two air intake ducts first merge along airintake direction and close to combustion
It separates and is formed when burning room；Two exhaust ducts gradually converge when far from combustion chamber along discharge directions to be linked together；Suction valve cone, row
Valve seating, inlet valve conduit and exhaust valve guide are also respectively corresponding two；Spark plug is located at two air intake ducts and two exhaust ducts
Geometric center.
The air inlet angle of two air intake duct is 30-35 °, preferably 31.5 °.Since air inlet angle is larger, flow into air inlet
Angle of turn is smaller during entering cylinder, and resistance further decreases, and air inflow increases.
The two exhaust ducts center line is smooth camber line.This smooth type pneumatic design of exhaust duct, make exhaust resistance compared with
Small, the gas after supersonic speed exhaust phase has excluded most of fire, thrust reduces when piston stroking upward.
Compared with prior art, the present invention is capable of increasing combustion chamber charge amount, and power increases.Revolving speed is higher simultaneously, intake and exhaust
Pulsation effect is stronger, due to the effect of pulsation effect, further air inflow is promoted to increase, power further increases, also further
Realize revolving speed high speed.High speed pulsation effect of this structure since gas is utilized, achievees the purpose that Automatic-boosting, can reach general
Logical effect of the engine with booster.Due to realizing the effect of pulsation pressurization, the power per liter of engine is improved, power per liter can
Reach 100kw/l or more, improve high-speed power and engine peak speed, street sport car of the engine for high power per liter can be made
On engine.
Detailed description of the invention
Fig. 1-schematic diagram of the three-dimensional structure.
Fig. 2-schematic structural view of the invention.
Wherein, the combustion chamber 1-；2- suction valve cone；3- exhaust valve seat；4- air intake duct；5- exhaust duct；6- inlet valve conduit；7-
Exhaust valve guide；8- spark plug.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to Fig. 1 and Fig. 2, it can be seen from the chart, motorcycle engine air flue burning is run in 150ml discharge capacity of the present invention street
Room, including combustion chamber 1, air intake duct 4, exhaust duct 5 and spark plug 8, the oral area that air intake duct 4 is connected to combustion chamber 1 are equipped with inlet valve
Seat 2, the oral area that exhaust duct 5 is connected to combustion chamber 1 are equipped with exhaust valve seat 3, are equipped with and 2 face of suction valve cone on air intake duct 4
Inlet valve conduit 7 is equipped with the exhaust valve guide 7 with 3 face of exhaust valve seat on exhaust duct 5.The air intake duct 4 and exhaust duct 5
It respectively twice and is communicated with combustion chamber 1, two air intake ducts 4 and two exhaust ducts 5 are symmetrically set along by the vertical section at combustion chamber center
It sets, two air intake ducts 4 first merge along airintake direction and separate and formed when close to combustion chamber；Two exhaust ducts 5 are along exhaust
Direction is gradually converged when far from combustion chamber to be linked together.Suction valve cone 2, inlet valve conduit 6, exhaust valve seat 3 and exhaust valve are led
Pipe 7 is also respectively two, corresponding with respective air intake duct and exhaust duct.Spark plug 8 is located at two air intake ducts 4 and two exhaust ducts 5
Geometric center.
The air inlet angle β of two air intake duct 4 is 30-35 °, preferably 31.5 °.Since air inlet angle is larger, make inlet air flow
Smaller into angle of turn during cylinder, resistance further decreases, and air inflow increases.
Air intake duct leading portion is that straightway and gradually tapering up with airflow direction becomes smaller, and is segmental arc with combustion chamber linkage section.
Two exhaust ducts, 5 center line is smooth camber line.This smooth type pneumatic design of exhaust duct, make exhaust resistance compared with
Small, the gas after supersonic speed exhaust phase has excluded most of fire, thrust reduces when piston stroking upward.
Air flue combustion chamber of the present invention is Four valve, and two inlet valves and two exhaust valves, spark plug are arranged in centre.Engine is opened
When beginning work, inlet valve is opened, and fuel-air mixed gas is from air intake duct flowing in combustion chamber, after compression, spark ignitor gaseous mixture,
Huge pressure is broken into when conflagration, pushes the acting of piston downlink, when lower dead center, exhauxt valve opens, gas after burning
Body is discharged by exhaust duct, and after the completion of exhaust, inlet valve is opened again, and into the subsequent cycle of engine, in cycles, engine is not
Disconnected output power.The each circular work of engine number be decided by air inflow number, exhaust adequacy, burning velocity,
Therefore the smoothness of air flue and chamber structure play a decisive role to the output power of engine.
The intake and exhaust of four valve engines are more smooth than two valves, and intake and exhaust resistance is small, but in order to further increase air flue
The air inflow of combustion chamber improves high-speed power and engine peak speed, under fixed cylinder diameter stroke, the present invention increase into
Air flue angle is optimized for 31.5 ° by existing 0-10 °, since the angle of air intake duct is larger, inlet air flow is made to enter the process of cylinder
Middle angle of turn is smaller, and resistance further decreases, and air inflow increases, and when high engine speeds are run, charge air flow flow velocity increases, and is used to
Property increase, the fluctuation pressure in air inlet latter stage increases, and increases inner pressure of air cylinder when air inlet ends, and air inflow increases, along with row
The smooth type pneumatic design of air flue, keeps exhaust resistance smaller, the gas after supersonic speed exhaust phase has excluded most of fire, piston
Thrust reduces when uplink, while utilizing exhaust gas pulses effect, and the residual gas in cylinder is sucked out, and it is useless to reduce the remnants that exhaust ends
Tolerance and pressure can further increase admission space, and due to the increase of air inflow, power increases.Revolving speed is higher, intake and exhaust pulsation
Effect is stronger, and due to the effect of pulsation effect, air inflow increases, and power increases, and revolving speed high speed is also further realized, due to benefit
With the high speed pulsation effect of gas, achieve the purpose that Automatic-boosting, can reach effect of the common engine with booster.Due to
The effect for realizing pulsation pressurization, improves the power per liter of engine, power per liter can reach 100kw/l or more, this can be made to start
Machine is used for the street sport car engine of high power per liter.
By abundant design checking, 31.5 ° of air intake duct angle is most preferably, if angle continues to increase, under valve spring
The installation counterbore of seat will be greatly reduced with air intake duct connection, support strength, also result in the failures such as burn oil.If by valve bullet
After the position of seat counterbore is moved up along valve axis under spring, air inlet angle can also be suitably increased, but the length of valve stem also needs to correspond to
It lengthens, valve quality will increase, and inertia force increases, and the revolving speed for constraining engine increases.Therefore, 31.5 ° of angles are the structures
With the optimum angle of discharge capacity.In addition, the best discharge capacity that the air flue combustion chamber applies to street sport car engine is 150ml, because of its gas
Road flow and flow rate characteristic is most suitable for the cylinder diameter and piston stroke of 150 discharge capacities, and the discharge capacity is made to reach optimal power and highest
Revolving speed.If, due to the limitation of air flue combustion chamber geometric dimension, cylinder bore can only expand using in other discharge capacities, cylinder diameter expands
After big, it will air flue combustion chamber is redesigned, rather than this structure air flue combustion chamber；Can also lengthened piston stroke increase
Discharge capacity, for the air flue combustion chamber, stroke is lengthened, and mean piston speed increases, and abrasion and friction loss increase, engine speed
It will reduce, power per liter reduces；Piston stroke can also be shortened to reduce discharge capacity, since stroke shortens, the crankshaft arm of force reduces, engine
Output torque declines to a great extent, and power performance is obviously deteriorated, power per liter decline.Therefore the most suitable street sport car hair in this air flue combustion chamber
The best discharge capacity of motivation is 150ml.
The above embodiment of the present invention is only example to illustrate the invention, and is not to implementation of the invention
The restriction of mode.For those of ordinary skill in the art, other can also be made not on the basis of the above description
With the variation and variation of form.Here all embodiments can not be exhaustive.It is all to belong to technical solution of the present invention
Changes and variations that derived from are still in the scope of protection of the present invention.
Claims (4)
1. motorcycle engine air flue combustion chamber, including combustion chamber, air intake duct, exhaust duct and spark are run in a kind of 150ml discharge capacity street
Plug, the oral area of air intake duct and combustion chamber are equipped with suction valve cone, and the oral area of exhaust duct and combustion chamber is equipped with exhaust valve seat,
It is equipped with the inlet valve conduit with suction valve cone face on air intake duct, the exhaust valve with exhaust valve seat face is equipped on exhaust duct
Conduit；It is characterized by: the air intake duct and exhaust duct are respectively twice and communicate with combustion chamber, two air intake ducts and two exhaust ducts
It is symmetrical arranged along by the vertical section at combustion chamber center, two air intake ducts first merge along airintake direction and close to combustion chamber
When separate and formed；Two exhaust ducts gradually converge when far from combustion chamber along discharge directions to be linked together；Suction valve cone, exhaust valve
Seat, inlet valve conduit and exhaust valve guide are also respectively corresponding two；Spark plug is located at the several of two air intake ducts and two exhaust ducts
What center.
2. 150ml discharge capacity according to claim 1 street run motorcycle engine air flue combustion chamber, it is characterised in that: two into
The angle of air flue axial line and horizontal plane is 30-35 °.
3. motorcycle engine air flue combustion chamber is run in 150ml discharge capacity according to claim 1 street, it is characterised in that: described
Two exhaust duct center lines are smooth camber line.
4. 150ml discharge capacity according to claim 2 street run motorcycle engine air flue combustion chamber, it is characterised in that: two into
The angle of air flue axial line and horizontal plane is preferably 31.5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476534.0A CN105927366B (en) | 2016-06-27 | 2016-06-27 | Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610476534.0A CN105927366B (en) | 2016-06-27 | 2016-06-27 | Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105927366A CN105927366A (en) | 2016-09-07 |
| CN105927366B true CN105927366B (en) | 2019-05-03 |
Family
ID=56828409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610476534.0A Active CN105927366B (en) | 2016-06-27 | 2016-06-27 | Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105927366B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2770256B1 (en) * | 1997-10-24 | 1999-12-10 | Renault | DIRECT INJECTION ENGINE AND CONTROLLED IGNITION |
| CN201062548Y (en) * | 2007-05-28 | 2008-05-21 | 重庆宗申技术开发研究有限公司 | Motorcycle forced air-cooled engine cylinder head |
| CN201255045Y (en) * | 2008-08-28 | 2009-06-10 | 济南轻骑发动机有限公司 | Improved 139QMB engine cylinder head for motorcycle |
| CN102322367A (en) * | 2011-09-17 | 2012-01-18 | 常州坛柴机电有限公司 | Die-cast air cylinder cover of air-cooled single-cylinder diesel engine |
| CN203130277U (en) * | 2013-03-12 | 2013-08-14 | 上海通用汽车有限公司 | Cylinder head air duct system |
| CN203962237U (en) * | 2014-05-15 | 2014-11-26 | 广州汽车集团股份有限公司 | Engine inlets, cylinder head and motor |
| CN205823426U (en) * | 2016-06-27 | 2016-12-21 | 力帆实业(集团)股份有限公司 | Motorcycle engine air flue combustor is run in a kind of 150ml discharge capacity street |
-
2016
- 2016-06-27 CN CN201610476534.0A patent/CN105927366B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2770256B1 (en) * | 1997-10-24 | 1999-12-10 | Renault | DIRECT INJECTION ENGINE AND CONTROLLED IGNITION |
| CN201062548Y (en) * | 2007-05-28 | 2008-05-21 | 重庆宗申技术开发研究有限公司 | Motorcycle forced air-cooled engine cylinder head |
| CN201255045Y (en) * | 2008-08-28 | 2009-06-10 | 济南轻骑发动机有限公司 | Improved 139QMB engine cylinder head for motorcycle |
| CN102322367A (en) * | 2011-09-17 | 2012-01-18 | 常州坛柴机电有限公司 | Die-cast air cylinder cover of air-cooled single-cylinder diesel engine |
| CN203130277U (en) * | 2013-03-12 | 2013-08-14 | 上海通用汽车有限公司 | Cylinder head air duct system |
| CN203962237U (en) * | 2014-05-15 | 2014-11-26 | 广州汽车集团股份有限公司 | Engine inlets, cylinder head and motor |
| CN205823426U (en) * | 2016-06-27 | 2016-12-21 | 力帆实业(集团)股份有限公司 | Motorcycle engine air flue combustor is run in a kind of 150ml discharge capacity street |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105927366A (en) | 2016-09-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101139893B1 (en) | Split-cycle engine with a helical crossover passage | |
| EP3147475A1 (en) | Combustion chamber structure for diesel engine | |
| CN109899174A (en) | A kind of combustion system for using gasoline ignition engine instead on the basis of diesel engine | |
| CN115419501A (en) | Engine combustion system with air inlet channel, cylinder cover and combustion chamber in cooperation | |
| CN105927366B (en) | Run motorcycle engine air flue combustion chamber in 150ml discharge capacity street | |
| CN205823426U (en) | Motorcycle engine air flue combustor is run in a kind of 150ml discharge capacity street | |
| CN204327206U (en) | The nozzle wheel blade of variable geometry turbine and variable geometry turbine | |
| CN109915252B (en) | Intercooler adiabatic internal combustion engine | |
| JP7453919B2 (en) | Gas inlet device with the intersection of the inlet duct and the calibration of the valve inclined with respect to the ignition plane | |
| CN107420195B (en) | A kind of two stroke engine and method based on four-stroke engine structure | |
| US11519324B1 (en) | Four-stroke engine with two-stage exhaust cycle | |
| CN201241758Y (en) | Small-sized gas turbine with air inlet and exhaust valves and free wheel | |
| CN202560339U (en) | Double-valve set of motor | |
| US20130298889A1 (en) | Outwardly-opening valve with cast-in diffuser | |
| WO2013061060A1 (en) | Poppet valve assemblies | |
| CN104791086B (en) | Dual rotor internal combustion engine | |
| CN211692645U (en) | Two-stroke crankless pneumatic engine based on waste gas utilization | |
| CN204677279U (en) | Four air valves burning chamber | |
| CN209637877U (en) | Two cylinder fitting-types, four stroke synchronous internal combustion engine | |
| CN104454160B (en) | It is double to match somebody with somebody opposed engine | |
| JP7514988B1 (en) | Engine valve structure | |
| US1901448A (en) | Internal combustion engine | |
| CN108661785B (en) | Crankless rotary Atkinson cycle engine | |
| CN211692646U (en) | Two-stroke crankless pneumatic engine | |
| CN215890230U (en) | Combustion system of vortex diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |