CN203374359U - Gasoline engine special for range extender - Google Patents
Gasoline engine special for range extender Download PDFInfo
- Publication number
- CN203374359U CN203374359U CN201320376244.0U CN201320376244U CN203374359U CN 203374359 U CN203374359 U CN 203374359U CN 201320376244 U CN201320376244 U CN 201320376244U CN 203374359 U CN203374359 U CN 203374359U
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- China
- Prior art keywords
- gasoline engine
- special
- diameter
- petrol engine
- bent axle
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- Expired - Lifetime
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Abstract
The utility model relates to a gasoline engine and discloses a gasoline engine special for a range extender. The gasoline engine special for the range extender comprises a gasoline engine body, an air cylinder cover and a crankshaft. The rear end face of the gasoline engine body is provided with an installation face of a disc structure. The highest rotation speed of the crankshaft does not exceed 4000rpm, the diameter of a rod journal of the crankshaft is 35mm, and the diameter of a main journal of the crankshaft is 42mm. The air cylinder cover is of a three-valve structure and is of a structure with a built-in exhaust manifold. The gasoline engine special for the range extender has the advantages that when being connected with an electric generator, the disc structure on the rear end face of the gasoline engine body can play the role in facilitating connection and sealing; the diameter of the rod journal of the crankshaft and the diameter of the main journal of the crankshaft are reduced, so that the effects of lowering friction loss and lowering working condition noise of the gasoline engine are achieved; due to the adoption of the three-valve structure and the structure that the exhaust manifold is arranged in the air cylinder cover, three-way catalysis and rapid ignition are facilitated, and starting discharge is reduced.
Description
Technical field
The utility model relates to a kind of petrol engine, the special-purpose petrol engine of especially a kind of distance increasing unit.
Background technique
Along with the continuous aggravation of energy and environment crisis, energy-saving and emission-reduction work has been mentioned higher strategic height by country.For automobile industry, future automobile will be gradually to the motorized motions future development of zero-emission.But current electric vehicle is limited by energy content of battery storage capacity, discharges and recharges the technology imperfection, cause the electric vehicle course continuation mileage short, restricting the paces that electric vehicle enters consumption market.The introducing of distance increasing unit has in recent years effectively extended the course continuation mileage of electric vehicle, the distance increasing unit that particularly traditional internal-combustion engine and generator combination form, by using existing internal-combustion engine, transform with integrated, can utilize existing internal-combustion engine production line to realize small lot batch manufacture fully, provide the distance increasing unit of sufficient amount to meet the demand that ev industry develops.
Distance increasing unit motor used is used for to the generator generating, and then is charge in batteries, and motor only need to move at some operating points, and need in whole rotating speed, load range, not work; Because the distance increasing unit motor is that an accessory power system as electric vehicle appends on automobile, thus require this device volume little, lightweight, operate steadily, vibration noise is little.The characteristics of traditional combustion engine structure itself are brought the inherent defects such as running is uneven, vibration noise is large, can not meet well the requirement of distance increasing unit motor.When in prior art, motor is connected with generator in addition, the sealing difficulty, be difficult to meet the generator seal request, in the urgent need to improving.Simultaneously, for the work characteristics of distance increasing unit, do not carry out the optimal design of an operating mode or lineman's condition during the conventional engines design, it is optimum that structure and performance are difficult to reach.
Summary of the invention
The purpose of this utility model is to provide a kind of distance increasing unit special-purpose petrol engine, can possess a kind of structure that realizes effective sealing when being connected with generator, the internal structure of petrol engine is optimized simultaneously, thereby reaches the purpose that reduces petrol engine operating mode noise, reduces the startup discharge.
The technological scheme that the utility model adopts for achieving the above object is: the special-purpose petrol engine of a kind of distance increasing unit, comprise petrol engine body, cylinder head, bent axle, and the ear end face of described petrol engine body is provided with the attachment face of disc structure.
Further technological scheme of the present utility model is: the maximum speed of described bent axle is no more than 4000rpm, and the diameter of the rod journal of described bent axle is 34-36mm, and the main journal diameter of described bent axle is 41-43mm.Wherein the diameter of the rod journal of bent axle is 35mm, and the diameter of the main journal of bent axle is 42mm.
Described cylinder head comprises at least two firing chambers, and each firing chamber is connected with two intake ducts and a built-in gas exhaust manifold, and described gas exhaust manifold and two intake ducts and firing chamber cross, and form the three valve structure of an exhaust valve and two intake valves.
Every described gas exhaust manifold one end is connected with described firing chamber respectively, and the other end all combines total air outlet flue that formation can be connected to the car load vent systems.
The special-purpose petrol engine of the utility model distance increasing unit has following beneficial effect:
1, be provided with the attachment face of disc structure due to the ear end face at the petrol engine body, when being connected with generator, the attachment face of this disc structure is for connecting and be sealed with benefit, playing the effect that connects and seal of being convenient to;
2, the maximum speed due to bent axle is no more than 4000rpm, after the thin axiation of the rod journal of bent axle and main journal, can reduce frictional loss, is conducive to reduce petrol engine operating mode noise simultaneously;
3, the beneficial effect due to above-mentioned three valve structure and the built-in air cylinder head structure of gas exhaust manifold is to be conducive to the three-element catalytic Fast light-off, and reduces to start and discharge.
Below in conjunction with drawings and Examples, the special-purpose petrol engine of the utility model distance increasing unit is further described.
The accompanying drawing explanation
The stereogram that Fig. 1 is the special-purpose petrol engine of the utility model distance increasing unit;
The stereogram that Fig. 2 is the special-purpose gasoline engine crank of the utility model distance increasing unit;
The worm's eye view that Fig. 3 is the special-purpose cylinder cover of petrol engine of the utility model distance increasing unit;
The sectional view that Fig. 4 is the special-purpose cylinder cover of petrol engine of the utility model distance increasing unit.
Primary component label declaration: 1-petrol engine body; The 2-cylinder head; The attachment face of 3-disc structure; The 4-bent axle; The 5-rod journal; The 6-main journal; The 7-firing chamber; The 8-exhaust valve; The 9-intake valve; The 10-intake duct; The 11-gas exhaust manifold.
Embodiment
As shown in Figures 1 to 4, the special-purpose petrol engine of the utility model distance increasing unit, comprise petrol engine body 1, cylinder head 2, bent axle 4, and the ear end face of petrol engine body is provided with the attachment face 3 of disc structure.
The maximum speed of bent axle 4 is no more than 4000rpm, and the diameter of the rod journal 5 of described bent axle 4 is 34-36mm, and main journal 6 diameters of described bent axle 4 are 41-43mm.In the present embodiment, the diameter of the rod journal 5 of bent axle 4 is 35mm, and main journal 6 diameters of bent axle 4 are 42mm.
Embodiment described above is only one of embodiment of the present utility model, rather than whole embodiments.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment who obtains, as as conversion of the present utility model: the diameter of the rod journal of bent axle value in the 34-36mm scope gets final product, the main journal diameter needs only value in the 41-43mm scope, cylinder head also can comprise the firing chamber more than two, as 4 firing chambers are set.All any modifications of doing, be equal to replacement etc., within all should being included in protection domain of the present utility model within spirit of the present utility model and principle.
Claims (5)
1. the special-purpose petrol engine of distance increasing unit, comprise petrol engine body (1), cylinder head (2), bent axle (4), and it is characterized in that: the ear end face of described petrol engine body (1) is provided with the attachment face (3) of disc structure.
2. the special-purpose petrol engine of distance increasing unit as claimed in claim 1, it is characterized in that: the maximum speed of described bent axle (4) is no more than 4000rpm, the diameter of the rod journal (5) of described bent axle (4) is 34-36mm, and main journal (6) diameter of described bent axle (4) is 41-43mm.
3. the special-purpose petrol engine of distance increasing unit as claimed in claim 2, it is characterized in that: the diameter of the rod journal (5) of described bent axle (4) is 35mm, the diameter of the main journal (6) of described bent axle (4) is 42mm.
4. the special-purpose petrol engine of as described as any one in claim 1-3 distance increasing unit, it is characterized in that: described cylinder head (2) comprises at least two firing chambers (7), each firing chamber (7) is connected with two intake ducts (10) and a built-in gas exhaust manifold (11), described gas exhaust manifold (11) and two intake ducts (10) cross with firing chamber (7), form the three valve structure of an exhaust valve (8) and two intake valves (9).
5. the special-purpose petrol engine of distance increasing unit as described in claim 4, it is characterized in that: every described gas exhaust manifold (11) one ends are connected with described firing chamber (7) respectively, and the other end all combines total air outlet flue that formation can be connected to the car load vent systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376244.0U CN203374359U (en) | 2013-06-27 | 2013-06-27 | Gasoline engine special for range extender |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376244.0U CN203374359U (en) | 2013-06-27 | 2013-06-27 | Gasoline engine special for range extender |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374359U true CN203374359U (en) | 2014-01-01 |
Family
ID=49836892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320376244.0U Expired - Lifetime CN203374359U (en) | 2013-06-27 | 2013-06-27 | Gasoline engine special for range extender |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374359U (en) |
-
2013
- 2013-06-27 CN CN201320376244.0U patent/CN203374359U/en not_active Expired - Lifetime
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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: 20140101 |
|
| CX01 | Expiry of patent term |