CN209990559U - General gasoline single cylinder engine - Google Patents
General gasoline single cylinder engine Download PDFInfo
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- CN209990559U CN209990559U CN201920466828.4U CN201920466828U CN209990559U CN 209990559 U CN209990559 U CN 209990559U CN 201920466828 U CN201920466828 U CN 201920466828U CN 209990559 U CN209990559 U CN 209990559U
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Abstract
The utility model discloses a general petrol single cylinder engine, the base is located whole single cylinder engine's the below, and the cylinder body is fixed in the base top, and the cylinder cap is fixed in the cylinder body top, and the camshaft box is fixed in the cylinder cap top, and the front end gear train is located the front end of whole single cylinder engine, installs the belt pulley respectively at base, cylinder body, camshaft box front end, connects the belt pulley through the belt, realizes the transmission of front end gear train. The utility model adopts the modular design, each part is mutually independent, and only the cylinder sleeve and the piston need to be replaced when the cylinder diameter is adjusted; the crankshafts with different crank radiuses are replaced when the stroke is adjusted; replacing the cylinder body adjusting gasket when adjusting the compression ratio; when the valve phase is changed, only the camshaft needs to be replaced; when the shape of the combustion chamber changes, only the cylinder cover needs to be replaced. When parts influencing the balance of the system, such as the piston, the connecting rod, the moving part and the like, are replaced, the balance shaft does not need to be redesigned, and only the balance weight needs to be replaced.
Description
Technical Field
The utility model relates to an automobile engine, concretely relates to general petrol single cylinder engine.
Background
In recent years, single cylinder testing has played an increasingly important role in engine development. The single cylinder engine refers to a single cylinder engine with the same parameters as a multi-cylinder engine except for different cylinder numbers. The method has the advantages of short design trial production period, low design trial production cost, convenient assembly and disassembly of parts, flexible and adjustable parts and the like. The single-cylinder engine test mainly undertakes the tasks of combustion system development, fuel injector model selection, key part verification and the like.
The configuration of a single-cylinder engine and the specific research content vary greatly when different models are developed. At present, aiming at different machine types, single-cylinder machine design, structure verification, machining and assembly need to be carried out independently, and a special single-cylinder machine is developed, so that the development cost is high, and the development period is long.
Disclosure of Invention
An object of the utility model is to provide a general petrol single cylinder engine through the modularized design, can realize that cylinder diameter, stroke, compression ratio, valve phase place adjust at the certain limit, satisfies the demand of different combustion system developments to reduce development cost, shorten the development cycle.
The technical scheme of the utility model as follows, combine the figure:
a general gasoline single cylinder engine comprises a base 1, a cylinder body 2, a cylinder cover 3, a camshaft box 4 and a front end gear train 5; the base 1 is located the below of whole single cylinder engine, and cylinder body 2 is fixed in base 1 top, and cylinder cap 3 is fixed in 2 tops of cylinder body, and the camshaft box is fixed in 3 tops of cylinder cap, and front end train 5 is located the front end of whole single cylinder engine, installs the belt pulley respectively at base 1, cylinder body 2, 3 front ends of camshaft box, connects the belt pulley through the belt, realizes the transmission of front end train.
Further, the base 1 comprises a lower base 1-1, an upper base 1-2, a crankshaft 1-3, a connecting rod 1-4, a balance shaft 1-5 and a balance weight 1-6; the lower base 1-1 and the upper base 1-2 are screwed up through bolts, a belt pulley is installed at the front end of the lower base 1-1, the cylinder body 2 is fixed above the upper base 1-2, the crankshaft 1-3 is fixed inside the upper base 1-2, the connecting rod 1-4 is fixed on the crankshaft 1-3 through bolts, the balance shaft 1-5 is located inside the lower base 1-1, the balance weight 1-6 is fixed on the balance shaft 1-5 through bolts, and the belt pulleys are installed at the front ends of the crank 1-2 and the balance shaft 1-5 respectively; different strokes can be realized by replacing crankshafts 1-3 with different crank radiuses within the range of 60-110 mm, and the length of the connecting rod can be changed by matching with different connecting rods 1-4 within the range of 120-150 mm.
Further, the cylinder body 2 comprises a cylinder body 2-1, a cylinder sleeve 2-2, a piston 2-3 and an adjusting gasket 2-4; the cylinder body 2-1 is fixed above the base 1, the cylinder sleeve 2-2 is positioned in the cylinder body 2-1 and is fixed on the cylinder body 2-1 by the pressure of the cylinder cover 3; the piston 2-3 is positioned inside the cylinder sleeve 2-2 and is fixed on the connecting rod 1-4 through a pin; the adjusting shim 2-4 is positioned between the base 1 and the air cylinder body 2-1; in the process of changing the cylinder diameter, the cylinder body 2-1 is kept unchanged, and only the cylinder sleeves 2-2 with different inner diameters and the pistons 2-3 with corresponding diameters need to be replaced, wherein the adjustment range is 60-110 mm; by replacing the adjusting gaskets 2-4 with different thicknesses, the height of the part above the cylinder body can be adjusted, the compression ratio can be changed under the condition that the internal movement mechanism is kept unchanged, and the adjusting range is 8-16.
Further, the camshaft housing 4 comprises an intake camshaft 4-1, an exhaust camshaft 4-2 and a camshaft housing 4-3; the camshaft box body 4-3 is fixed above the cylinder cover 3, the air inlet camshaft 4-1 and the exhaust camshaft 4-2 are respectively fixed inside the camshaft box body 4-3, and belt pulleys are respectively arranged at the front ends of the air inlet camshaft 4-1 and the exhaust camshaft 4-2.
Because of adopting the modular design, all parts are mutually independent, and only the cylinder sleeve and the piston need to be replaced when the cylinder diameter is adjusted; the crankshafts with different crank radiuses are replaced when the stroke is adjusted; replacing the cylinder body adjusting gasket when adjusting the compression ratio; when the valve phase is changed, only the camshaft needs to be replaced; when the shape of the combustion chamber changes, only the cylinder cover needs to be replaced. When parts influencing the balance of the system, such as the piston, the connecting rod, the moving part and the like, are replaced, the balance shaft does not need to be redesigned, and only the balance weight needs to be replaced.
The utility model provides a general petrol single cylinder engine is compact structure not only, arrange simple, easy dismounting, and implementation method is simple and easy moreover, only needs to change a small amount of spare parts alright accomplish the change of different cylinder diameters, stroke, compression ratio, valve phase place fast, has greatly reduced development cost, has shortened the development cycle.
Drawings
Fig. 1 is a schematic view of the external structure of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 and 2, the utility model provides a pair of general petrol single cylinder engine comprises modules such as base 1, cylinder body 2, cylinder cap 3, camshaft box 4, front end train 5. The base 1 is located at the lowest part of the whole single cylinder engine, the cylinder body 2 is located above the base 1, and the base 1 and the cylinder body are screwed through bolts; the cylinder cover 3 is positioned above the cylinder body 2 and is screwed with the cylinder body 2 through a bolt; the camshaft box is positioned above the cylinder cover 3 and is screwed with the cylinder cover 3 through bolts; the front-end gear train 5 is positioned at the front end of the whole single cylinder engine and is screwed with the base 1, the cylinder body 2 and the camshaft box 3 through bolts. Because each module has relatively independent functions, when different single-cylinder engine combustion systems are realized, only certain parts in one module need to be selectively replaced according to needs, and the whole single-cylinder engine does not need to be replaced.
The function is explained in detail below.
The base 1 comprises a lower base 1-1, an upper base 1-2, a crankshaft 1-3, a connecting rod 1-4, a balance shaft 1-5 and a balance weight 1-6. Wherein, the lower base 1-1 and the upper base 1-2 are screwed up by bolts, the crankshaft 1-3 is positioned in the upper base 1-2 and is screwed up by bolts, and the connecting rod 1-4 is fixed on the crankshaft 1-3 by bolts; the balance shaft 1-5 is positioned inside the lower base 1-1, and the balance weight 1-6 is fixed on the balance shaft 1-5 through a bolt. The upper base 1-1, the lower base 1-2 and the accessories are designed according to the maximum working capacity, and are kept unchanged when the parameters of the single cylinder engine are changed, so that the universality is achieved. Different strokes can be realized by replacing crankshafts 1-3 with different crank radiuses, the range is 60-110 mm, and the length of the connecting rod can be changed by matching different connecting rods 1-4, and the range is 120-150 mm. When parts influencing system balance, such as pistons, connecting rods, crankshafts and the like, are replaced, the balance shafts 1-5 are kept unchanged, and only the balance weights 1-6 are replaced.
The cylinder body 2 comprises a cylinder body 2-1, a cylinder sleeve 2-2, a piston 2-3 and an adjusting gasket 2-4. Wherein, the cylinder body 2-1 is positioned above the upper base 1-2 and is screwed up by bolts to realize the connection of the base 1 and the cylinder body 2. The cylinder sleeve 2-2 is positioned inside the cylinder body 2-1 and is fixed on the cylinder body 2-1 through the pressure of the cylinder cover 3; the piston 2-3 is positioned inside the cylinder sleeve 2-2 and is fixed on the connecting rod 1-4 through a pin; the adjusting shim 2-4 is positioned between the upper base 1-2 and the cylinder block 2-1. The cylinder body 2 is directly related to the cylinder diameter, the cylinder body 2-1 is kept unchanged in the process of changing the cylinder diameter, only the cylinder sleeves 2-2 with different inner diameters and the pistons 2-3 with corresponding diameters need to be replaced, and the adjusting range is 60-110 mm. By replacing the adjusting gaskets 2-4 with different thicknesses, the height of the part above the cylinder body can be adjusted, the compression ratio can be changed under the condition that the internal movement mechanism is kept unchanged, and the adjusting range is 8-16.
The cylinder cover 3 is a replaceable module, is positioned above the cylinder body 2-1 and is connected with the cylinder body 2-1 through bolts, and different cylinder covers 3 can be used by different combustion systems.
The camshaft housing 4 includes an intake camshaft 4-1, an exhaust camshaft 4-2, and a camshaft housing 4-3. The camshaft box body 4-3 is positioned above the cylinder cover 3 and is fixed through bolts. The air inlet camshaft 4-1 and the exhaust camshaft 4-2 are positioned in the camshaft box body 4-3 and fixed through bolts. The camshaft drives the valve through a hydraulic system, so that the camshaft can be flexibly arranged, and the change of the valve phase can be realized only by replacing the camshaft.
The front-end wheel train 5 consists of belt pulleys and a belt, wherein the belt pulleys are arranged at the front ends of the lower base 1-2, the crankshaft 1-3, the balance shaft 1-5, the cylinder body 2-1, the air inlet cam shaft 4-1 and the exhaust cam shaft 4-2 and are fixed through bolts; the belt pulley is connected through the belt, realizes front end gear train transmission function, and when changing the model, the belt pulley keeps unchangeable, only needs to change the belt of different length can.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. A general gasoline single cylinder engine is characterized by comprising a base (1), a cylinder body (2), a cylinder cover (3), a camshaft box (4) and a front-end gear train (5); base (1) is located the below of whole single cylinder engine, and base (1) top is fixed in cylinder body (2), and cylinder cap (3) are fixed in cylinder body (2) top, and camshaft box is fixed in cylinder cap (3) top, and front end train (5) are located the front end of whole single cylinder engine, install the belt pulley respectively at base (1), cylinder body (2), 3 front ends of camshaft box, connect the belt pulley through the belt, realize the transmission of front end gear train.
2. The general gasoline single cylinder engine as defined in claim 1, wherein the base (1) comprises a lower base (1-1), an upper base (1-2), a crankshaft (1-3), a connecting rod (1-4), a balance shaft (1-5), and a balance weight (1-6); the lower base (1-1) and the upper base (1-2) are screwed up through bolts, a belt pulley is installed at the front end of the lower base (1-1), the cylinder body (2) is fixed above the upper base (1-2), the crankshaft (1-3) is fixed in the upper base (1-2), the connecting rod (1-4) is fixed on the crankshaft (1-3) through bolts, the balance shaft (1-5) is located in the lower base (1-1), the balance weight (1-6) is fixed on the balance shaft (1-5) through bolts, and the belt pulleys are installed at the front ends of the crankshaft (1-2) and the balance shaft (1-5) respectively; different strokes can be realized by replacing crankshafts (1-3) with different crank radiuses, the range is 60-110 mm, and the length change of connecting rods can be realized by matching different connecting rods (1-4), and the range is 120-150 mm.
3. A general gasoline single cylinder engine as defined in claim 1, characterized in that the cylinder block (2) comprises a cylinder block (2-1), a cylinder liner (2-2), a piston (2-3), a shim (2-4); the cylinder body (2-1) is fixed above the base (1), the cylinder sleeve (2-2) is positioned in the cylinder body (2-1) and is fixed on the cylinder body (2-1) through the pressure of the cylinder cover (3); the piston (2-3) is positioned inside the cylinder sleeve (2-2) and is fixed on the connecting rod (1-4) through a pin; the adjusting gasket (2-4) is positioned between the base (1) and the cylinder body (2-1); in the process of changing the cylinder diameter, the cylinder body (2-1) is kept unchanged, only the cylinder sleeves (2-2) with different inner diameters and the pistons (2-3) with corresponding diameters need to be replaced, and the adjusting range is 60-110 mm; by replacing the adjusting gaskets (2-4) with different thicknesses, the height of the part above the cylinder body can be adjusted, the compression ratio can be changed under the condition that the internal movement mechanism is kept unchanged, and the adjusting range is 8-16.
4. A general gasoline single cylinder engine as defined in claim 1, characterized in that the camshaft housing (4) comprises an intake camshaft (4-1), an exhaust camshaft (4-2), a camshaft housing (4-3); the camshaft box body (4-3) is fixed above the cylinder cover (3), the air inlet camshaft (4-1) and the air outlet camshaft (4-2) are respectively fixed inside the camshaft box body (4-3), and belt pulleys are respectively arranged at the front ends of the air inlet camshaft (4-1) and the air outlet camshaft (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466828.4U CN209990559U (en) | 2019-04-09 | 2019-04-09 | General gasoline single cylinder engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920466828.4U CN209990559U (en) | 2019-04-09 | 2019-04-09 | General gasoline single cylinder engine |
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| CN209990559U true CN209990559U (en) | 2020-01-24 |
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| CN201920466828.4U Active CN209990559U (en) | 2019-04-09 | 2019-04-09 | General gasoline single cylinder engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217220A (en) * | 2021-05-26 | 2021-08-06 | 河南柴油机重工有限责任公司 | Single cylinder engine body |
| CN114483358A (en) * | 2021-12-31 | 2022-05-13 | 东风汽车集团股份有限公司 | Thermodynamic single cylinder engine |
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2019
- 2019-04-09 CN CN201920466828.4U patent/CN209990559U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113217220A (en) * | 2021-05-26 | 2021-08-06 | 河南柴油机重工有限责任公司 | Single cylinder engine body |
| CN114483358A (en) * | 2021-12-31 | 2022-05-13 | 东风汽车集团股份有限公司 | Thermodynamic single cylinder engine |
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