CN2864141Y - Cylinder cover of motorcycle engine - Google Patents
Cylinder cover of motorcycle engine Download PDFInfo
- Publication number
- CN2864141Y CN2864141Y CNU2006201098690U CN200620109869U CN2864141Y CN 2864141 Y CN2864141 Y CN 2864141Y CN U2006201098690 U CNU2006201098690 U CN U2006201098690U CN 200620109869 U CN200620109869 U CN 200620109869U CN 2864141 Y CN2864141 Y CN 2864141Y
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- hole
- firing chamber
- spark plug
- aperture
- 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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Classifications
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- 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
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cylinder head for motorcycle engine. In the combustion chamber of the cylinder head, an admission passage, an air passage and two ignition plug holes are arranged. The two ignition plug holes are at two sides of the central line of the admission passage and the air passage in the combustion chamber. One ignition plug hole is beside the admission passage, its orifice is towards the air passage orifice of the combustion chamber, the orifice of the hole outside the cylinder head is oblique below the admission passage, and the axial central line of the hole is in 44-48 degree with the joining face at bottom of the cylinder head. Another ignition plug hole is beside the air passage, its orifice is towards the admission passage orifice of the combustion chamber, the orifice of the hole outside the cylinder head is beside the air passage, and the axial central line of the hole is in 42-46 degree with the joining face at bottom of the cylinder head. The utility model is of simple structure, has greatly reduced the combustion distance, improved combustion speed, so that the combustion of mixed gas becomes more complete; it can also increase the compression ratio of engine to increase thermal efficiency so as to improve the environmental-protection compliance, economy and power behavior of engine.
Description
Technical field
The utility model relates to a kind of engine cylinder cover, particularly a kind ofly can make the clean-burning motorcycle engine cylinder head of the mixed gas that enters in the firing chamber.
Background technique
The motorcycle engine cylinder head generally is that a spark-plug hole is set at present, a spark plug is installed in the firing chamber is used for igniting, a spark-plug hole generally is arranged on the neutral position between the inlet and outlet mouth in the firing chamber, is beneficial to light combination gas, guarantees rate of burning.Make the combination gas burning insufficient for preventing that distance because of the flame propagation of electrical spark is long, the distance of the flame propagation of electrical spark generally need be set shorter.But, because the distance of the flame propagation of the electrical spark of a spark plug generation is often longer, can not fully light the combination gas that enters the firing chamber rapidly in time, cause the burning of combination gas not really abundant, the performance of motor can not be showed fully.
Summary of the invention
The purpose of this utility model provides a kind of motorcycle engine cylinder head, and it can make the firing chamber that two spark plugs are set, and helps fully lighting in time the combination gas that enters the firing chamber, and the performance of motor is found full expression.
Another purpose of the present utility model provides a kind of motorcycle engine cylinder head that can use low ron fuel.
The purpose of this utility model is achieved in that and is provided with intake duct, air outlet flue and two holes that are used to install spark plug that connect chamber wall in the firing chamber of described cylinder head.Described two holes that are used for installing spark plug are located at the firing chamber respectively and are advanced, the both sides of the exhaust road junction line of centres, one of them is used to install the hole of spark plug and is located at intake duct one side, this hole is the exhaust road junction in the firing chamber in the aperture of firing chamber one end, this hole the aperture of the outside end of cylinder head be positioned at intake duct other tiltedly below, the angle on the shaft axis in this hole and mating face, cylinder head bottom is 44～48 degree, air outlet flue one side is located in another hole that is used to install spark plug, this hole is the air inlet road junction in the firing chamber in the aperture of firing chamber one end, this hole is by the aperture of the outside end of cylinder head is positioned at air outlet flue, and the angle on the shaft axis in this hole and mating face, cylinder head bottom is 42～46 degree.
Owing to adopted such scheme, the both sides of inlet and outlet road junction, the firing chamber line of centres are located in described two holes that are used for installing spark plug respectively, one of them is used to install the hole of spark plug and is located at intake duct one side, this hole is the exhaust road junction in the firing chamber in the aperture of firing chamber one end, this hole the aperture of the outside end of cylinder head be positioned at intake duct other tiltedly below, the angle on the shaft axis in this hole and mating face, cylinder head bottom is 44～48 to spend.Make the spark plug suction port between the inlet and outlet door and in the oblique firing chamber that is installed in this hole, the flame kernel of the electrical spark of its generation is to the fresh mix combustion gas diffusion at intake valve place, the lower fresh mix combustion gas that is not easy to light of ignition temperature rapidly, the while also can be lighted the combination gas at exhaust valve place rapidly.Air outlet flue one side is located in another hole that is used to install spark plug, this hole is the air inlet road junction in the firing chamber in the aperture of firing chamber one end, this hole is by the aperture of the outside end of cylinder head is positioned at air outlet flue, and the angle on the shaft axis in this hole and mating face, cylinder head bottom is 42～46 degree.Make the spark plug that is installed in this hole near relief opening in intake valve and the oblique firing chamber, the flame kernel of the electrical spark of its generation is to the combination gas diffusion at exhaust valve place, remaining high-temperature gas heat effect is easier to light in the firing chamber because of being subjected in the fresh mix combustion gas at exhaust valve place, also lights the lower fresh mix combustion gas of temperature at intake valve place simultaneously rapidly.Combination gas is fully burned.
Again because two of this cylinder head are used for installing the hole of spark plug is not arranged on the firing chamber and advances, neutral position between the relief opening, and towards difference, so that two spark plugs installing can be not simultaneously yet towards the air inlet road junction or the exhaust road junction, perhaps also neutral position between intake valve and exhaust valve all not, but towards laying particular stress on to some extent respectively with the position, so the setpoint distance of the flame propagation of the electrical spark of spark plug can shorten widely, make combination gas obtain more abundant burning at short notice, can prevent " pinking ", thereby can use low ron fuel.(index of pinking when being mixture combustion, octane value takes place, the low more just easy more generation " pinking " of octane value.)
The utility model is simple in structure, shortens the distance of burning widely, improves velocity of combustion, makes mixture combustion more abundant, can also increase compression ratio, the raising thermal efficiency of combination gas, thereby improves the feature of environmental protection, Economy and the power character of motor.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is the face upwarding assumption diagram of this cylinder head;
Fig. 2 is the right TV structure figure of this cylinder head;
Fig. 3 is the left TV structure figure of this cylinder head.
Embodiment
Referring to Fig. 1 to Fig. 3, be provided with intake duct 4, air outlet flue 5 and two holes 1,2 that are used to install spark plug of connecting chamber wall in the firing chamber 3 of this cylinder head bottom surface.The both sides of the firing chamber 3 inlet and outlet road junction lines of centres are located in described two holes that are used for installing spark plug respectively.One of them is used to install the hole 1 of spark plug and is located at intake duct 4 one sides, it is other and towards the exhaust road junction of firing chamber that the aperture of this hole 1 one end in the firing chamber is arranged in the suction valve cone of intake duct, this hole 1 is arranged in the other counterbore that is provided with below tiltedly of intake duct 4 in the aperture of the outside end of cylinder head, the angle on the shaft axis in this hole 1 and mating face, cylinder head bottom is 46 to spend; Air outlet flue 5 one sides are located in another hole 2 that is used to install spark plug, this hole 2 is the air inlet road junction between the exhaust valve seat of the suction valve cone of intake duct and air outlet flue and in the firing chamber in the aperture of firing chamber one end, this hole 2 is positioned on the boss on air outlet flue 5 sides in the aperture of the outside end of cylinder head, and the angle on the shaft axis in this hole 1 and mating face, cylinder head bottom is 44 degree.The shape of the firing chamber 3 of this cylinder head bottom surface adopts squeezes the two dome shapes of stream, perhaps squeezes stream two spheries, perhaps squeezes the stream hemisphere and can both realize purpose, wherein to squeeze the best results of the two dome shape firing chambers of stream.Also be provided with the die cavity 6 that the power transmission member of distribution device passes through on this cylinder head.Also be provided with the inlet and outlet aperture of door on the cylinder head, and the mounting hole of distribution rocking arm combination etc.
Install spark plug respectively in two holes that are used to install spark plug, be located at the spark plug hole that of intake duct one side is used for installing spark plug installed between the inlet and outlet door and the suction port of oblique firing chamber; Be located at the spark plug hole that of air outlet flue one side is used for installing spark plug installed near intake valve and oblique firing chamber relief opening.
Claims (4)
1. motorcycle engine cylinder head, be provided with the intake duct that connects chamber wall in the firing chamber of described cylinder head, air outlet flue and two holes that are used to install spark plug, it is characterized in that: described two holes that are used for installing spark plug are located at the firing chamber respectively and are advanced, the both sides of the exhaust road junction line of centres, one of them is used to install the hole (1) of spark plug and is located at intake duct one side, this hole (1) is the exhaust road junction in the firing chamber in the aperture of firing chamber one end, this hole (1) the aperture of the outside end of cylinder head be positioned at intake duct other tiltedly below, the angle on the shaft axis in this hole (1) and mating face, cylinder head bottom is 44～48 degree, air outlet flue one side is located in another hole (2) that is used to install spark plug, this hole (2) is the air inlet road junction in the firing chamber in the aperture of firing chamber one end, this hole (2) is by the aperture of the outside end of cylinder head is positioned at air outlet flue, and the angle on the shaft axis of this hole (1) and mating face, cylinder head bottom is 42～46 degree.
2. motorcycle engine cylinder head according to claim 1 is characterized in that: the hole (1) that is used for installing spark plug is positioned at the other counterbore that is provided with below tiltedly of intake duct in the aperture of the outside end of cylinder head.
3. motorcycle engine cylinder head according to claim 1 is characterized in that: the hole (2) that is used to install spark plug is positioned at the other boss of air outlet flue in the aperture of the outside end of cylinder head.
4. motorcycle engine cylinder head according to claim 1 is characterized in that: the shape of firing chamber can perhaps be squeezed stream two spheries for squeezing the stream hemisphere, perhaps squeezes the two dome shapes of stream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201098690U CN2864141Y (en) | 2006-01-26 | 2006-01-26 | Cylinder cover of motorcycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201098690U CN2864141Y (en) | 2006-01-26 | 2006-01-26 | Cylinder cover of motorcycle engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864141Y true CN2864141Y (en) | 2007-01-31 |
Family
ID=37676593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201098690U Expired - Fee Related CN2864141Y (en) | 2006-01-26 | 2006-01-26 | Cylinder cover of motorcycle engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864141Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500223A (en) * | 2014-12-15 | 2015-04-08 | 江门天钇金属工业有限公司 | Motorcycle with push rod type engine |
| CN104514628A (en) * | 2014-12-15 | 2015-04-15 | 江门天钇金属工业有限公司 | Ejector rod type motorcycle engine |
| CN104879204B (en) * | 2015-05-05 | 2018-10-02 | 天津内燃机研究所（天津摩托车技术中心） | A kind of combustion chamber of petrol engine |
| CN110219747A (en) * | 2019-07-18 | 2019-09-10 | 四川轻化工大学 | A kind of cylinder cover with double sparking plugs |
-
2006
- 2006-01-26 CN CNU2006201098690U patent/CN2864141Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104500223A (en) * | 2014-12-15 | 2015-04-08 | 江门天钇金属工业有限公司 | Motorcycle with push rod type engine |
| CN104514628A (en) * | 2014-12-15 | 2015-04-15 | 江门天钇金属工业有限公司 | Ejector rod type motorcycle engine |
| CN104879204B (en) * | 2015-05-05 | 2018-10-02 | 天津内燃机研究所（天津摩托车技术中心） | A kind of combustion chamber of petrol engine |
| CN110219747A (en) * | 2019-07-18 | 2019-09-10 | 四川轻化工大学 | A kind of cylinder cover with double sparking plugs |
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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: 20070131 |