CN209990544U - Tandem type piston engine - Google Patents
Tandem type piston engine Download PDFInfo
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- CN209990544U CN209990544U CN201920796730.5U CN201920796730U CN209990544U CN 209990544 U CN209990544 U CN 209990544U CN 201920796730 U CN201920796730 U CN 201920796730U CN 209990544 U CN209990544 U CN 209990544U
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Abstract
A serial piston engine comprises an electric starter (1), a crankshaft connecting rod mechanism, a first cylinder (2), a second cylinder (3), a combustion working cylinder (4) and a fourth cylinder (5), wherein the crankshaft connecting rod mechanism comprises a crankshaft (6), a first crankshaft connecting rod (7), a second crankshaft connecting rod (8), a third crankshaft connecting rod (9) and a fourth crankshaft connecting rod (10), the first crankshaft connecting rod (7), the second crankshaft connecting rod (8), the third crankshaft connecting rod (9) and the fourth crankshaft connecting rod (10) are respectively movably connected with four connecting rod journals of the crankshaft (6), and the first cylinder (2), the second cylinder (3), the combustion working cylinder (4) and the fourth cylinder (5) are sequentially arranged and fixedly installed in an engine shell (11); the advantages are that: the first cylinder only pressurizes air, the second cylinder only compresses air, the combustion cylinder only burns to do work, and combustion waste gas can be completely discharged without margin.
Description
Technical Field
The utility model relates to an engine equipment field, concretely relates to serial-type piston engine.
Background
At present, the existing vehicle engine applies work by oil-gas combustion in multiple cylinders, the vibration amplitude is large, the work application is uneven, and a part of generated waste gas is incompletely discharged; the great amount of heat energy in tail gas is not converted to work, when the grade of diesel oil is low, the combustion gas is incomplete, and when the grade of gasoline is low, the defect of violent vibration can be generated.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to provide a tandem piston engine, which overcomes the above-mentioned disadvantages.
The utility model comprises an electric starter, a crankshaft connecting rod mechanism, a first cylinder, a second cylinder, a combustion working cylinder and a fourth cylinder,
the crankshaft connecting rod mechanism comprises a crankshaft, a first crankshaft connecting rod, a second crankshaft connecting rod, a third crankshaft connecting rod and a fourth crankshaft connecting rod,
the first crankshaft connecting rod, the second crankshaft connecting rod, the third crankshaft connecting rod and the fourth crankshaft connecting rod are respectively and movably connected with four connecting rod journals of a crankshaft,
the first cylinder, the second cylinder, the combustion working cylinder and the fourth cylinder are arranged in sequence and fixedly arranged in the engine shell,
the piston of the first crankshaft connecting rod is positioned in the first cylinder, the piston of the second crankshaft connecting rod is positioned in the second cylinder, the piston of the third crankshaft connecting rod is positioned in the combustion working cylinder, the piston of the fourth crankshaft connecting rod is positioned in the fourth cylinder,
the bottom of the first cylinder and the bottom of the second cylinder are respectively provided with an air inlet pipeline and an air outlet pipeline, a one-way valve is arranged in the air inlet pipeline of the first cylinder, the air outlet pipeline of the first cylinder is communicated with the air inlet pipeline of the second cylinder, the outlet end of the air inlet pipeline of the second cylinder is provided with a check valve, the air outlet pipeline of the second cylinder is provided with a one-way valve, the bottom of the combustion working cylinder is provided with a three-way pipeline, a spark plug is arranged in the combustion working cylinder, the air outlet pipeline of the second cylinder is communicated with an air inlet of the three-way pipeline, an oil inlet of the three-way pipeline is connected with an oil pipeline, the inlet end of the oil pipeline is provided with a piston type oil delivery pump, the outlet end of the oil pipeline is provided with an oil nozzle, an oil gas outlet of the three-way pipeline is communicated with an inner cavity of the, and the tail gas discharge pipeline is provided with a gas discharge valve, the gas outlet end of the gas discharge pipeline is communicated with the gas inlet of the fourth cylinder, and the power output shaft of the electric starter is in transmission connection with one end of the crankshaft through a coupler.
The crankshaft comprises five main journals and four connecting rod journals which are arranged at intervals, the four connecting rod journals are respectively a first connecting rod journal, a second connecting rod journal, a third connecting rod journal and a fourth connecting rod journal, an included angle between the side wall of a crankshaft arm of the third connecting rod journal and a vertical plane is alpha, the alpha is 45-90 degrees, and the side wall of the fourth connecting rod journal is parallel to the side wall of the crankshaft arm of the third connecting rod journal.
The utility model has the advantages that: the first cylinder only pressurizes air, the second cylinder only compresses air, the combustion cylinder only burns to do work, the combustion waste gas can be completely discharged without leaving any room, the third cylinder utilizes residual kinetic energy and heat energy to do work, the heat-work conversion rate is high, high-pressure oil vapor enters and burns to do work, the compression ratio can be higher than 18:1, violent vibration generated by low octane value of gasoline is overcome, the ignition device overcomes the defects of poor oil product of a diesel engine, non-combustible oil vapor compression, black smoke emission, incomplete combustion and the like, the power is uniform and stable, the vibration is small, the endurance is larger, because the residual heat energy of the fourth cylinder does work to completely convert heat energy, the compression ignition has double functions, oil gas is combusted while entering, the compression ignition overcomes the influence of the gasoline with a low octane value of 29715, the ignition device is added to overcome the poor combustion of the diesel oil with a low sixteen value and reduce the rotating speed, it can use both gasoline and diesel oil without cooling water system, and can burn completely, and its rotation speed is lower than that of diesel engine.
Description of the drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is an angle structure diagram of the third rod journal of the present invention.
Detailed Description
As shown in the attached drawings, the utility model comprises an electric starter 1, a crankshaft connecting rod mechanism, a first cylinder 2, a second cylinder 3, a combustion working cylinder 4 and a fourth cylinder 5,
the crankshaft connecting rod mechanism comprises a crankshaft 6, a first crankshaft connecting rod 7, a second crankshaft connecting rod 8, a third crankshaft connecting rod 9 and a fourth crankshaft connecting rod 10,
a first crankshaft connecting rod 7, a second crankshaft connecting rod 8, a third crankshaft connecting rod 9 and a fourth crankshaft connecting rod 10 are respectively and movably connected with four connecting rod journals of a crankshaft 6,
the first cylinder 2, the second cylinder 3, the combustion acting cylinder 4 and the fourth cylinder 5 are sequentially arranged and fixedly arranged in the engine shell 11,
the piston of the first crankshaft connecting rod 7 is located in the first cylinder 2, the piston of the second crankshaft connecting rod 8 is located in the second cylinder 3, the piston of the third crankshaft connecting rod 9 is located in the combustion working cylinder 4, the piston of the fourth crankshaft connecting rod 10 is located in the fourth cylinder 5,
the bottoms of the first cylinder 2 and the second cylinder 3 are respectively provided with an air inlet pipeline and an air outlet pipeline, a one-way valve is arranged in the air inlet pipeline of the first cylinder 2, the air outlet pipeline of the first cylinder 2 is communicated with the air inlet pipeline of the second cylinder 3, the outlet end of the air inlet pipeline of the second cylinder 3 is provided with a check valve, the air outlet pipeline of the second cylinder 3 is provided with a one-way valve, the bottom of the combustion working cylinder 4 is provided with a three-way pipeline 12, a spark plug is arranged in the combustion working cylinder 4, the air outlet pipeline of the second cylinder 3 is communicated with an air inlet of the three-way pipeline 12, an oil inlet of the three-way pipeline 12 is connected with an oil conveying pipeline, an inlet end of the oil conveying pipeline is provided with a piston type oil conveying pump, the outlet end of the oil conveying pipeline is provided with an oil nozzle, an oil gas outlet, the air discharge pipeline 13 is provided with an air discharge valve, the bottom of the fourth cylinder 5 is provided with an air inlet and a tail gas discharge pipeline 14, the tail gas discharge pipeline 14 is provided with an air discharge valve, the air outlet end of the air discharge pipeline 13 is communicated with the air inlet of the fourth cylinder 5, and the power output shaft of the electric starter 1 is in transmission connection with one end of the crankshaft 6 through a coupler.
The crankshaft 6 comprises five main journals 15 and four connecting rod journals which are arranged at intervals, the four connecting rod journals are respectively a first connecting rod journal 16, a second connecting rod journal 17, a third connecting rod journal 18 and a fourth connecting rod journal 19, an included angle between the side wall of the crank arm of the third connecting rod journal 18 and a vertical plane is alpha, the alpha is 45-90 degrees, and the side wall of the fourth connecting rod journal 19 is parallel to the side wall of the crank arm of the third connecting rod journal 18.
The working mode is as follows:
the first step is as follows: the electric starter 1 rotates to drive the crankshaft 6 to move, the first crankshaft connecting rod 7 rises, air is sucked into the first air cylinder 2 and then compressed, and the compressed air is discharged into the second air cylinder 3 to circulate in a reciprocating mode.
The second step is that: when the first cylinder 2 starts to compress, the second cylinder 3 starts to intake air, the one-way valve enables the air in the second cylinder 3 not to flow back, when the second cylinder 3 starts to intake air, the piston of the second crankshaft connecting rod 8 rises, when the second cylinder starts to compress, the piston of the second crankshaft connecting rod 8 descends, a valve on an air outlet pipeline of the second cylinder 3 is opened, the compressed air is sent into a three-way pipeline 12 and is mixed with oil to be sprayed into the combustion working cylinder 4, compression ignition and ignition of a spark plug are carried out simultaneously, and the reciprocating circulation is carried out; when the quality of gasoline or diesel oil is poor, the spark plug plays a role of auxiliary ignition. When the piston in the combustion working cylinder 4 is compressed to the bottom, the air discharge pipeline 13 is closed, and the stroke cycles of the second cylinder 3 and the combustion working cylinder 4 are staggered by 45-90 degrees.
The third step: the combustion cylinder 4 is used for air intake and combustion at the same time and pushing the piston to do work, when the piston in the second cylinder 3 is pressed down to the bottom, the valve on the pipeline communicated with the three-way pipeline 12 is closed, the work in the combustion cylinder 4 is done to the top, the air valve of the steam release pipeline 13 is opened, the discharged air enters the fourth cylinder 5 to do work, when the piston in the fourth cylinder 5 is operated to the top, the reverse rotation is formed, the air discharge valve on the air discharge pipeline 13 is closed, the air discharge valve on the tail gas discharge pipeline 14 is opened, and the tail gas is discharged. And opening a steam release valve on the steam release pipeline 13 and closing 14 the steam exhaust valve to cycle back and forth.
When the angle between the side wall of the crank arm of the third connecting rod journal 18 and the vertical plane is 90 °, the volume of the inner cavity of the first cylinder 2 is 5.88 times the volume of the inner cavity of the second cylinder 3, and when the angle is 45 °, the volume of the inner cavity of the first cylinder 2 is 2.9 times the volume of the inner cavity of the second cylinder 3. The solution volume of the first cylinder and the fourth cylinder are equal, the solution set of the second cylinder and the third cylinder are equal, and the compression ratio is 18: 1.
The pressure ratio of the compression ratio 16-18:1 or higher is adjusted by adjusting the angle between the side wall of the crank arm of the third connecting rod journal 18 and the vertical plane.
Claims (2)
1. A serial piston engine is characterized in that the engine comprises an electric starter (1), a crankshaft connecting rod mechanism, a first cylinder (2), a second cylinder (3), a combustion working cylinder (4) and a fourth cylinder (5),
the crankshaft connecting rod mechanism comprises a crankshaft (6), a first crankshaft connecting rod (7), a second crankshaft connecting rod (8), a third crankshaft connecting rod (9) and a fourth crankshaft connecting rod (10),
a first crankshaft connecting rod (7), a second crankshaft connecting rod (8), a third crankshaft connecting rod (9) and a fourth crankshaft connecting rod (10) are respectively and movably connected with four connecting rod journals of a crankshaft (6),
a first cylinder (2), a second cylinder (3), a combustion acting cylinder (4) and a fourth cylinder (5) are sequentially arranged and fixedly arranged in an engine shell (11),
the piston of the first crankshaft connecting rod (7) is positioned in the first cylinder (2), the piston of the second crankshaft connecting rod (8) is positioned in the second cylinder (3), the piston of the third crankshaft connecting rod (9) is positioned in the combustion working cylinder (4), the piston of the fourth crankshaft connecting rod (10) is positioned in the fourth cylinder (5),
the bottom of the first cylinder (2) and the bottom of the second cylinder (3) are respectively provided with an air inlet pipeline and an air outlet pipeline, a one-way valve is arranged in the air inlet pipeline of the first cylinder (2), the air outlet pipeline of the first cylinder (2) is communicated with the air inlet pipeline of the second cylinder (3), the outlet end of the air inlet pipeline of the second cylinder (3) is provided with a check valve, the air outlet pipeline of the second cylinder (3) is provided with the one-way valve, the bottom of the combustion working cylinder (4) is provided with a three-way pipeline (12), a spark plug is arranged in the combustion working cylinder (4), the air outlet pipeline of the second cylinder (3) is communicated with the air inlet of the three-way pipeline (12), an oil pipeline is connected to an oil inlet of the three-way pipeline (12), the inlet end of the oil pipeline is provided with a piston type oil delivery pump, the outlet end of the oil pipeline is provided with an oil injection nozzle, an air discharge pipeline (13) is arranged at the bottom of the combustion working cylinder (4), an air discharge valve is arranged on the air discharge pipeline (13), an air inlet and a tail gas discharge pipeline (14) are arranged at the bottom of the fourth cylinder (5), an air discharge valve is arranged on the tail gas discharge pipeline (14), an air outlet end of the air discharge pipeline (13) is communicated with the air inlet of the fourth cylinder (5), and a power output shaft of the electric starter (1) is in transmission connection with one end of the crankshaft (6) through a coupler.
2. A tandem piston engine according to claim 1, characterized in that the crankshaft (6) comprises five main journals (15) and four connecting rod journals arranged at intervals, the four connecting rod journals being a first connecting rod journal (16), a second connecting rod journal (17), a third connecting rod journal (18) and a fourth connecting rod journal (19), respectively, the angle between the side wall of the crank arm of the third connecting rod journal (18) and the vertical plane being α, α being 45-90 °, and the side wall of the fourth connecting rod journal (19) being parallel to the side wall of the crank arm of the third connecting rod journal (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796730.5U CN209990544U (en) | 2019-05-30 | 2019-05-30 | Tandem type piston engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920796730.5U CN209990544U (en) | 2019-05-30 | 2019-05-30 | Tandem type piston engine |
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| Publication Number | Publication Date |
|---|---|
| CN209990544U true CN209990544U (en) | 2020-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920796730.5U Active CN209990544U (en) | 2019-05-30 | 2019-05-30 | Tandem type piston engine |
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| CN (1) | CN209990544U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700940A (en) * | 2019-05-30 | 2020-01-17 | 周华文 | Tandem type piston engine |
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2019
- 2019-05-30 CN CN201920796730.5U patent/CN209990544U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700940A (en) * | 2019-05-30 | 2020-01-17 | 周华文 | Tandem type piston engine |
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