CN2667175Y - Two-stroke petrol engine with ventilating chamber - Google Patents
Two-stroke petrol engine with ventilating chamber Download PDFInfo
- Publication number
- CN2667175Y CN2667175Y CN 200320123488 CN200320123488U CN2667175Y CN 2667175 Y CN2667175 Y CN 2667175Y CN 200320123488 CN200320123488 CN 200320123488 CN 200320123488 U CN200320123488 U CN 200320123488U CN 2667175 Y CN2667175 Y CN 2667175Y
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- CN
- China
- Prior art keywords
- air
- exchanging chamber
- cylinder
- connecting rod
- stroke
- 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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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a two-stroke engine, which is characterized in that: an air exchanging chamber is arranged at one side of cylinder body; a piston connecting rod mechanism is arranged inside the air exchanging chamber; a rod journal of crankshaft is connected at the lower part of the connecting rod. Compared with the single-cylinder four-stroke diesel engines, the utility model has the advantages of doubled burning times, more soft and stable engine working, better accelerating performance, simple structure, good manufacturing process, no need for regular maintenance and adjustment, and higher reliability and durability. Compared with four stroke petrol machine with double cylinders, due to working through single cylinder burning, the utility model has the advantages of less parts in the oil feeding and ignition system, no valve train, simple structure, good lubrication, reliable working, no unbalance between the two cylinders, and low manufacturing cost.
Description
Technical field
The utility model relates to two-stroke gasoline engine.
Background technique
Two-stroke gasoline engine all adopts crankcase scavenging.The crankcase scavenging motor is simple in structure, compact with it, reliable, and the advantage of low cost of manufacture has won countless Designers' favor.Because use the crankcase scavenging two-stroke gasoline engine scavenging of Carburetor short out, blowdown is more, this traditional design can't satisfy environmental requirement in face of the environmental requirement that improves day by day.But along with the appearance of electric jet technology and perfect, the two-stroke gasoline engine of crankcase gas even reached oil consumption and the discharging lower than four-stroke gasoline engine, and have higher power per liter.Yet, no matter be to adopt crankcase scavenging two-stroke gasoline engine hybrid or that separated type is lubricated, the problem that all has poor lubrication inevitably, even at present state-of-the-art injecting type with computer control separates lubricating structure, its lubrication effect also can not be compared with the pressure splash system lubrication of four-stroke gasoline engine far away, and the machine oil in the four stroke engine oil sump is that the crankcase scavenging two-stroke gasoline engine is incomparable to respectively rub lubricated, flushing, cooling action and the lubricated reliability at position of motor.
Summary of the invention
Order of the present utility model provides the good two-stroke gasoline engine with air-exchanging chamber of a kind of lubricating condition.
The structural design scheme of realizing above-mentioned purpose is as follows:
Two-stroke gasoline engine with air-exchanging chamber, comprise cylinder body, cylinder cap, connecting rod, distribution device, oil feeding mechanism and ignition mechanism etc., it is characterized in that: described cylinder body casing top half one side is provided with air-exchanging chamber, air-exchanging chamber one side is communicated with the cylinder scavenging mouth by scavenging air belt, the air-exchanging chamber opposite side is provided with intake duct, and scavenging road junction, the air inlet of air-exchanging chamber are equipped with one-way cock on the road junction; Be provided with piston crank mechanism in the air-exchanging chamber, the connecting rod lower end is connecting a rod journal of bent axle; Described bent axle has two rod journals, and two rod journals lay respectively at the both sides of main journal, is the symmetrical cloth of 1 80 degree, and the connecting rod of the connecting rod that another rod journal and cylinder are interior is connected.
The two-stroke gasoline engine with air-exchanging chamber according to above-mentioned is characterized in that: described one-way cock is an one-way leaf valve.
The utility model has been owing to set up ventilation mechanism, so than one times often of the burning of single-cylinder four-stroke petrol engine, engine operation is softer, steady, acceleration performance is better.Owing to adopted electric oil injector, its oil consumption and blowdown all can not be higher than the single-cylinder four-stroke petrol engine, and manufacture cost can not be higher than the single-cylinder four-stroke petrol engine.The utility model is simple in structure, anufacturability good, does not need the periodic maintenance adjustment, and its reliability and durability are higher.
The utility model and twin-tub four-stroke gasoline engine are relatively, it is the single cylinder work by combustion, so its fuel feeding and ignition system lack than twin-tub four-stroke gasoline engine component, no distribution device, simple in structure, lubricated good, reliable operation, and there is not the unbalanced problem of two cylinder workings, for the petrol engine of same displacement, its low cost of manufacture.
On the other hand, the utility model also is better than the twin-tub four-stroke gasoline engine on the problem of acting interval, with the two juxtaposed cylinders is example, if the acting of twin-tub four stroke engine is spaced apart uniform 360 degree, the piston of two cylinders is moved up and down simultaneously, so must the design balance axle, piece offsets reciprocating inertial force, one side increases engine weight.If adopt comparatively ideal designs of two pistons one running balance on next, Zuo Gong gap just can not be uniform 360 degree so, but one 180 degree, one 540 degree; Because of the inhomogeneous at interval size and the quality that must strengthen flywheel of burning.Design of the present utility model then can be satisfied under the situation of two pistons one balanced running on next, and satisfy acting simultaneously and is spaced apart 360 degree, owing to do not need to increase trunnion shaft, piece, so engine weight is lighter relatively.
In order to satisfy more powerful needs, the two-stroke gasoline engine with air-exchanging chamber can also be designed to the form that four cylinders promptly have two cylinders and two air-exchanging chambers.
Two-stroke gasoline engine with air-exchanging chamber is widely used in various motorcycles and light-duty vehicle.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated.
Embodiment:
As seen from Figure 1, the two-stroke gasoline engine with air-exchanging chamber comprises cylinder body, cylinder cap 5,6, connecting rod, fuel nozzle 1 and spark plug 4.Cylinder body casing top half 16 1 sides are provided with the air-exchanging chamber identical with cylinder structure 9, air-exchanging chamber 9 one sides are communicated with cylinder 16 scavenging ports 2 by scavenging air belt 15, air-exchanging chamber 9 opposite sides are provided with intake duct 8, are respectively equipped with one-way leaf valve 3,7 on the scavenging road junction of air-exchanging chamber 9, the air inlet road junction; Be provided with piston crank mechanism in the air-exchanging chamber 9, connecting rod 11 lower ends that are connected with piston 10 are connecting a rod journal of bent axle 12; Described bent axle 12 has two rod journals, and two rod journals lay respectively at the both sides of main journal, is the symmetrical cloth of 180 degree, and the connecting rod 14 at piston 13 rear portions that another rod journal of bent axle and cylinder 16 are interior is connected.
The utility model is equivalent to set up one " piston type air compressor " in the adjacent side of cylinder of a two-stroke gasoline engine, " piston type air compressor " and the shared bent axle of petrol engine, the rod journal of bent axle is 180 Shaft angles of writing music at interval, " piston type air compressor " replaced the work of calming the anger of crankcase, the motor inhaled air needn't enter crankcase like this, therefore, crankcase can be used for storing lubricant oil, adopts the pressure splash system lubrication identical with four-stroke gasoline.Because the piston in two cylinders arranged side by side is to-and-fro motion one on the other, therefore running steadily, crankcase internal air pressure balance, when piston 10 is descending, one-way leaf valve 7 is opened, fresh air enters air-exchanging chamber 9, and at this moment one-way leaf valve 3 is closed, when piston 10 arrives lower dead center, one-way leaf valve 7 is closed, when piston 10 was up, one-way leaf valve 3 was opened, and fresh air enters scavenging air belt 15, and enter cylinder 16 by scavenging air belt 15 and scavenging port 2, when piston 10 arrived top dead center, piston 13 was positioned at lower dead center, and at this moment engine charge finishes.When piston 13 is up to the position that scavenging port 2 and relief opening 17 are all closed, nozzle 1 commencement of fuel injection of electric oil injector, when piston 13 is up to the budc 10 degree left and right sides, spark plug 4 begins igniting, light mixed gas, and promote piston 13 descending actings, when piston 13 goes downwards to relief opening 17, exhaust begins, and has finished a work cycle.
Claims (2)
1, the two-stroke gasoline engine that has air-exchanging chamber, comprise cylinder body, cylinder cap, connecting rod, distribution device, oil feeding mechanism and ignition mechanism etc., it is characterized in that: described cylinder body casing top half one side is provided with air-exchanging chamber, air-exchanging chamber one side is communicated with the cylinder scavenging mouth by scavenging air belt, the air-exchanging chamber opposite side is provided with intake duct, and scavenging road junction, the air inlet of air-exchanging chamber are equipped with one-way cock on the road junction; Be provided with piston crank mechanism in the air-exchanging chamber, the connecting rod lower end is connecting a rod journal of bent axle; Described bent axle has two rod journals, and two rod journals lay respectively at the both sides of main journal, is the symmetrical cloth of 180 degree, and the connecting rod of the connecting rod that another rod journal and cylinder are interior is connected.
2, the two-stroke gasoline engine with air-exchanging chamber according to claim 1 is characterized in that: described one-way cock is the uniguide plate valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123488 CN2667175Y (en) | 2003-12-19 | 2003-12-19 | Two-stroke petrol engine with ventilating chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123488 CN2667175Y (en) | 2003-12-19 | 2003-12-19 | Two-stroke petrol engine with ventilating chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667175Y true CN2667175Y (en) | 2004-12-29 |
Family
ID=34348827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123488 Expired - Fee Related CN2667175Y (en) | 2003-12-19 | 2003-12-19 | Two-stroke petrol engine with ventilating chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667175Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588100A (en) * | 2012-03-13 | 2012-07-18 | 梁光锋 | Two-stroke engine with double cylinders |
| CN102003279B (en) * | 2009-08-31 | 2015-06-03 | 吴舜国 | Manufacturing method of rotor engine |
| CN105909379A (en) * | 2016-06-12 | 2016-08-31 | 深圳市金动科力实业有限公司 | Multifunctional V-shaped power integrated machine |
| CN108730019A (en) * | 2017-04-21 | 2018-11-02 | 许伟庆 | A kind of two-stroke gasoline engine without using miscella |
-
2003
- 2003-12-19 CN CN 200320123488 patent/CN2667175Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102003279B (en) * | 2009-08-31 | 2015-06-03 | 吴舜国 | Manufacturing method of rotor engine |
| CN102588100A (en) * | 2012-03-13 | 2012-07-18 | 梁光锋 | Two-stroke engine with double cylinders |
| CN105909379A (en) * | 2016-06-12 | 2016-08-31 | 深圳市金动科力实业有限公司 | Multifunctional V-shaped power integrated machine |
| CN105909379B (en) * | 2016-06-12 | 2018-12-07 | 深圳市金动科力实业有限公司 | A kind of Multi-functional V-shaped power all-in-one machine |
| CN108730019A (en) * | 2017-04-21 | 2018-11-02 | 许伟庆 | A kind of two-stroke gasoline engine without using miscella |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |