CN113417734B - Ignition type light high-rotating-speed diesel engine - Google Patents
Ignition type light high-rotating-speed diesel engine Download PDFInfo
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- CN113417734B CN113417734B CN202110814532.9A CN202110814532A CN113417734B CN 113417734 B CN113417734 B CN 113417734B CN 202110814532 A CN202110814532 A CN 202110814532A CN 113417734 B CN113417734 B CN 113417734B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/28—Component parts, details or accessories of crankcase pumps, not provided for in, or of interest apart from, subgroups F02B33/02 - F02B33/26
- F02B33/30—Control of inlet or outlet ports
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
- F02B75/18—Multi-cylinder engines
- F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
- F02B75/228—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders arranged in parallel banks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Output Control And Ontrol Of Special Type Engine (AREA)
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a spark-ignition type light high-rotating-speed diesel engine.A preparation cylinder and a working cylinder are both rotationally connected to a crankshaft, and an angle sensor is fixed on the crankshaft; the top end of the preparation cylinder is connected with a first inlet valve in a closed mode, and a first oil nozzle is communicated; the top end of the working cylinder is respectively connected with a second inlet valve and an exhaust valve in a closed manner, and the top end of the working cylinder is communicated with a spark plug; the top ends of the preparation cylinder and the working cylinder are communicated through a conveying pipeline, and a one-way valve is communicated on the conveying pipeline; the preparation cylinder, the working cylinder, the angle sensor, the first intake valve, the first oil nozzle, the second intake valve, the exhaust valve, the spark plug and the one-way valve are all electrically connected with a controller. The invention discloses an ignition type light high-rotating-speed diesel engine, which can convert diesel which is difficult to atomize into high-temperature high-pressure mixed gas to ignite and do work, and saves a high-pressure common rail technology, thereby improving the starting efficiency of the diesel engine.
Description
Technical Field
The invention relates to the technical field of engines, in particular to a spark-ignition type light high-rotation-speed diesel engine.
Background
The diesel engine is an engine which burns diesel to obtain energy release, has the advantages of high power and good economic performance, and the diesel engine has the advantages of energy conservation and carbon dioxide emission, and can not be replaced by all heat engines including a gasoline engine, so that the emission of the advanced small-sized high-speed diesel engine reaches the European No. III standard, becomes a 'green engine', and becomes a power device of a plurality of new cars in Europe and America at present.
The working process of the diesel engine has many same places as that of the gasoline engine, each working cycle also goes through four strokes of air intake, compression, work and exhaust, but the traditional fuel for the diesel engine is diesel oil which has higher viscosity and is not easy to evaporate than gasoline, and the autoignition temperature is lower than that of gasoline, so the ignition mode of the diesel engine is different from that of the gasoline engine.
Therefore, the technical problem to be solved by those skilled in the art is how to provide an ignition type light high-rotation-speed diesel engine which converts diesel oil which is not easy to atomize and evaporate into high-temperature high-pressure mixture to ignite and do work.
Disclosure of Invention
In view of the above, the invention provides an ignition type light high-rotation-speed diesel engine, which can convert diesel which is not easy to atomize into high-temperature high-pressure mixed gas to ignite and do work, so that a high-pressure common rail technology is omitted, and the starting efficiency of the ignition type light high-rotation-speed diesel engine can be improved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a spark-ignition, light-duty, high-speed diesel engine comprising: the device comprises a preparation cylinder, a working cylinder and a crankshaft, wherein the preparation cylinder and the working cylinder are both rotationally connected to the crankshaft, and an angle sensor is fixed on the crankshaft;
the top end of the preparation cylinder is connected with a first inlet valve in a closed mode, and a first oil nozzle is communicated; the top end of the working cylinder is respectively connected with a second inlet valve and an exhaust valve in a closed mode, and meanwhile, the top end of the working cylinder is communicated with a spark plug; the top ends of the preparation cylinder and the working cylinder are communicated through a conveying pipeline, and a one-way valve is communicated on the conveying pipeline;
meanwhile, the preparation cylinder, the working cylinder, the angle sensor, the first intake valve, the first oil injection nozzle, the second intake valve, the exhaust valve, the spark plug and the one-way valve are electrically connected with a controller so as to control the intake stroke and the compression stroke of the preparation cylinder, control the preparation cylinder to provide combustible mixture for the working cylinder through the conveying pipeline and control the intake stroke, the compression stroke and the exhaust stroke of the working cylinder to drive the working cylinder to do work.
Preferably, a second oil nozzle is communicated with the conveying pipeline and electrically connected with the controller.
Preferably, the plurality of working cylinders are provided, and the preparation cylinder is connected to each of the plurality of working cylinders through the transfer pipe.
Preferably, the spark-ignition light-duty high-speed diesel engine is of a V6 type, and has two preparation cylinders and four working cylinders in total, and is divided into two rows, each row has one preparation cylinder and two working cylinders, and the delivery pipes have two, and the preparation cylinders in the two rows are communicated with the two delivery pipes in a one-to-one correspondence manner, and each delivery pipe is communicated with the two working cylinders in each row in a corresponding manner.
Through the technical scheme, compared with the prior art, the invention discloses a light-duty high-rotation-speed diesel engine with an ignition function, which can achieve the following technical effects:
according to the invention, the preparation cylinder is used for mixing and gasifying diesel oil and air in a high-temperature and high-pressure environment to form high-temperature and high-pressure combustible mixed gas, and the preparation cylinder is controlled to provide the combustible mixed gas for the working cylinder through the conveying pipeline, so that after the working cylinder compresses the combustible mixed gas, the combustible mixed gas in the working cylinder can be ignited through the spark plug, and the working cylinder can do work to generate power, thereby changing the working principle of compression ignition of the traditional diesel engine, realizing the effect of ignition and working, therefore, the high-pressure common rail technology is omitted, and the starting efficiency of the diesel engine can be improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a cut-away view of a spark ignition type light high speed diesel engine of the present invention (the cross hatching is omitted for clarity of the structure because the drawing has many lines);
fig. 2 is a structural view of a spark ignition type light high-speed diesel engine according to the present invention.
Wherein, 1, preparing a cylinder; 2-a working cylinder; 3-a crankshaft; 11-a first inlet valve; 12-a first fuel injector; 21-a second intake valve; 22-an exhaust valve; 23-a spark plug; 4-a conveying pipeline; 41-one-way valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The embodiment of the invention discloses a spark-ignition type light high-rotating-speed diesel engine, which comprises: the method comprises the following steps that a preparation cylinder 1, a working cylinder 2 and a crankshaft 3 are arranged, the preparation cylinder 1 and the working cylinder 2 are both rotationally connected to the crankshaft 3, and an angle sensor is fixed on the crankshaft 3;
wherein, the top end of the preparation cylinder 1 is connected with a first inlet valve 11 in a closed mode, and a first oil nozzle 12 is communicated; the top end of the working cylinder 2 is respectively connected with a second air inlet valve 21 and an exhaust valve 22 in a closed mode, and the top end of the working cylinder 2 is communicated with a spark plug 23; the top ends of the preparation cylinder 1 and the working cylinder 2 are communicated through a conveying pipeline 4, and a one-way valve 41 is communicated on the conveying pipeline 4;
meanwhile, the preparation cylinder 1, the working cylinder 2, the angle sensor, the first intake valve 11, the first oil nozzle 12, the second intake valve 21, the exhaust valve 22, the spark plug 23 and the check valve 41 are all electrically connected with a controller to control the intake stroke and the compression stroke of the preparation cylinder 1, and then the preparation cylinder 1 is controlled to provide combustible mixture for the working cylinder 2 through the delivery pipeline 4, and the intake stroke, the compression stroke and the exhaust stroke of the working cylinder 2 are controlled to drive the working cylinder 2 to do work.
According to the invention, diesel oil and air are mixed and gasified in a high-temperature and high-pressure environment through the preparation cylinder 1 to form high-temperature and high-pressure combustible mixed gas, the preparation cylinder 1 is controlled to provide the combustible mixed gas for the working cylinder 2 through the conveying pipeline 4, and after the working cylinder 2 compresses the combustible mixed gas, the combustible mixed gas in the working cylinder 2 can be ignited through the spark plug 23, so that the working cylinder 2 does work to generate power, thus the working principle of compression ignition of the traditional diesel engine is changed, and the effect of ignition and work is realized, so that the high-pressure common rail technology is omitted, and the starting efficiency of the diesel engine can be improved.
In order to further optimize the above technical solution, the delivery pipe 4 is connected with a second oil nozzle, and the second oil nozzle is electrically connected with the controller.
By adopting the technical scheme, the invention has the beneficial effects that: the mode of injecting the oil into the preparation cylinder 1 is increased to improve the application range of the invention, namely:
when the controller controls the injection of oil through the second injector, and controls the first injector 12 to prohibit the injection of oil: because the conveying pipeline 4 is a low-pressure area, the oil injection resistance is small, and the opening resistance of the second oil nozzle is small, so that the oil injection device is suitable for a low-cost diesel engine, but the atomization is poor. The fuel utilization rate is low;
when the controller controls injection of oil through the first injector 12 and controls the second injector to inhibit injection: the first fuel injector 12 directly injects high-pressure fuel into the preparation cylinder 1, the atomization is good, the knocking is not easy, but under the condition of low rotating speed, the second intake valve 21 of the working cylinder 2 is easy to form carbon deposition:
when the controller controls the injection of oil through the first oil jet 12 and controls the injection of oil through the second oil jet: therefore, the problem of carbon deposition at low rotating speed is solved, and the problem of high rotating speed fuel utilization rate is also solved.
In order to further optimize the above technical solution, the first oil jet 12 and the second oil jet each include:
the oil spray nozzle comprises an oil spray nozzle body and an electromagnetic valve, wherein the electromagnetic valve is connected to the oil spray nozzle body, the electromagnetic valve is electrically connected with a controller, the oil spray nozzle body of a first oil spray nozzle 12 is connected to the top end of a preparation cylinder 1, and the oil spray nozzle body of a second oil spray nozzle is connected to a conveying pipeline 4.
By adopting the technical scheme, the invention has the beneficial effects that: the state of oil injection of the oil injection nozzle body is controlled by the electromagnetic valve, so that different oil injection modes can be selected by the oil injection nozzle.
In order to further optimize the above solution, there are a plurality of working cylinders 2, and the preparation cylinder 1 is connected to each of the plurality of working cylinders 2 through a transfer pipe 4.
By adopting the technical scheme, the invention has the beneficial effects that: the power of the present invention can be increased by providing a plurality of cylinders 2.
In order to further optimize the technical scheme, the ignition type light high-rotation-speed diesel engine is of a V6 type, is provided with two preparation cylinders 1 and four working cylinders 2 in total, and is divided into two rows, each row is provided with one preparation cylinder 1 and two working cylinders 2, meanwhile, the conveying pipelines 4 are provided with two, the preparation cylinders 1 in the two rows are communicated with the two conveying pipelines 4 in a one-to-one correspondence mode, and each conveying pipeline 4 is communicated with the two works in each row in a corresponding mode.
By adopting the technical scheme, the invention has the beneficial effects that: the structure of the invention is compact, and the plurality of preparation cylinders 1 and working cylinders 2 are provided, so that the efficiency of the invention for doing work can be improved, and the power of the invention can be further improved.
Example 1:
the embodiment of the invention discloses a spark-ignition type light high-rotating-speed diesel engine, wherein the work of injecting oil into a preparation cylinder 1 through a first oil injection nozzle 12 is far away from the following steps:
the controller controls the first air inlet valve 11 of the preparation cylinder 1 to be opened, so that air enters the preparation cylinder 1, then controls the piston in the preparation cylinder 1 to move downwards, so that air continuously enters the preparation cylinder 1, until the piston in the preparation cylinder 1 moves downwards to a bottom dead center, controls the first air inlet valve 11 to be closed, then controls the piston of the preparation cylinder 1 to move upwards to compress air, so that the combustion chamber of the preparation cylinder 1 is in a high-temperature and high-pressure state (for example, 14 atmospheric pressures exist in the combustion chamber of the preparation cylinder 1 at the moment);
meanwhile, the controller controls the second inlet valve 21 of the working cylinder 2 to be opened, so that air enters the working cylinder 2, then controls the piston in the working cylinder 2 to move downwards, so that air continuously enters the working cylinder 2, until the piston in the working cylinder 2 moves downwards to a bottom dead center, controls the second inlet valve 21 to be closed, then controls the piston of the preparation cylinder 1 to move upwards to compress air, and in the process, the exhaust valve 22 of the working cylinder 2 is always closed (for example, 1 atmosphere of air pressure exists in a combustion chamber of the working cylinder 2 at the moment);
when the piston of the preparation cylinder 1 reaches the top dead center and the compressed air stroke of the preparation cylinder 1 is nearly finished, controlling the first oil injection nozzle 12 to open and inject oil into the combustion chamber of the preparation cylinder 1, and at the moment, because the combustion chamber of the preparation cylinder 1 is in a high-temperature and high-pressure state, the diesel oil injected into the combustion chamber of the preparation cylinder 1 by the first oil injection nozzle 12 is mixed with the air therein and gasified to form a high-temperature and high-pressure combustible mixed gas, and at the moment, the piston of the working cylinder 2 is positioned at the bottom dead center, and the one-way valve 41 on the conveying pipeline 4 is flushed by the combustible mixed gas, so that the combustible mixed gas enters the working cylinder 2, and then the piston of the working cylinder 2 is controlled to move upwards to compress the mixed gas, and when the compression stroke of the piston of the working cylinder 2 is finished, the compression ratio of the piston of the working cylinder 2 is 23/1, the temperature is raised, and at the moment, the spark plug 23 is controlled to ignite, so that the high-temperature and high-pressure mixed gas in the combustion chamber of the working cylinder 2 combusts to do work (then, 14 atmospheres of the piston of the preparation cylinder 1 and 1 is compressed and 25 atmospheres in the working cylinder 2);
and the process is circulated.
The structure and the working process of the diesel engine which are not described in the invention are the same as those of the prior art, and are not described again.
According to the invention, diesel oil and air are mixed and gasified in a high-temperature and high-pressure environment through the preparation cylinder 1 to form high-temperature and high-pressure combustible mixed gas, the preparation cylinder 1 is controlled to provide the combustible mixed gas for the working cylinder 2 through the conveying pipeline 4, and after the working cylinder 2 compresses the combustible mixed gas, the combustible mixed gas in the working cylinder 2 can be ignited through the spark plug 23, so that the working cylinder 2 does work to generate power, thus the working principle of compression ignition of the traditional diesel engine is changed, and the effect of ignition and work is realized, so that the high-pressure common rail technology is omitted, and the starting efficiency of the diesel engine can be improved.
Example 2: the embodiment of the invention discloses a spark-ignition type light high-rotating-speed diesel engine, wherein oil is injected into a preparation cylinder 1 through a first oil injection nozzle 12, oil is injected into a conveying pipeline 4 through a second oil injection nozzle, the working process of the preparation cylinder 1 and the working cylinder 2 is the same as that of the embodiment 1, and the embodiment 2 further realizes the technical effects compared with the embodiment 1 that: the problem of carbon deposition at low rotating speed is solved, and the problem of high rotating speed fuel utilization rate is also solved.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. A spark-ignition, light-duty, high-speed diesel engine, comprising: the device comprises a preparation cylinder (1), a working cylinder (2) and a crankshaft (3), wherein the preparation cylinder (1) and the working cylinder (2) are both rotationally connected to the crankshaft (3), and an angle sensor is fixed on the crankshaft (3);
the preparation cylinder (1) is connected with a first inlet valve (11) in a closed mode at the top end, and a first oil injection nozzle (12) is communicated at the same time; the top end of the working cylinder (2) is respectively connected with a second air inlet valve (21) and an exhaust valve (22) in a closed mode, and meanwhile the top end of the working cylinder (2) is communicated with a spark plug (23); the top ends of the preparation cylinder (1) and the working cylinder (2) are communicated through a conveying pipeline (4), and a one-way valve (41) is communicated on the conveying pipeline (4);
meanwhile, the preparation cylinder (1), the working cylinder (2), the angle sensor, the first inlet valve (11), the first oil nozzle (12), the second inlet valve (21), the exhaust valve (22), the spark plug (23) and the one-way valve (41) are electrically connected with a controller to control the intake stroke and the compression stroke of the preparation cylinder (1), control the preparation cylinder (1) to provide combustible mixed gas for the working cylinder (2) through the conveying pipeline (4), and control the intake stroke, the compression stroke and the exhaust stroke of the working cylinder (2) to drive the working cylinder (2) to do work;
the ignition type light high-rotation-speed diesel engine is of a V6 type, is provided with two preparation cylinders (1) and four working cylinders (2) in total, and is divided into two rows, each row is provided with one preparation cylinder (1) and two working cylinders (2), meanwhile, the conveying pipelines (4) are provided with two rows, the preparation cylinders (1) in the two rows are communicated with the two conveying pipelines (4) in a one-to-one correspondence manner, and each conveying pipeline (4) is communicated with the two working cylinders (2) in each row in a corresponding manner;
and a second oil nozzle is communicated with the conveying pipeline (4), and the second oil nozzle is electrically connected with the controller.
2. A spark ignition type light duty high rotational speed diesel engine according to claim 1, characterized in that said working cylinders (2) are plural, and said preparation cylinder (1) connects to a plurality of said working cylinders (2) through said transfer pipe (4), respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110814532.9A CN113417734B (en) | 2021-07-19 | 2021-07-19 | Ignition type light high-rotating-speed diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110814532.9A CN113417734B (en) | 2021-07-19 | 2021-07-19 | Ignition type light high-rotating-speed diesel engine |
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| Publication Number | Publication Date |
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| CN113417734A CN113417734A (en) | 2021-09-21 |
| CN113417734B true CN113417734B (en) | 2022-12-13 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201412221Y (en) * | 2009-06-14 | 2010-02-24 | 田国强 | Automobile energy-saving engine |
| CN107035517A (en) * | 2016-02-03 | 2017-08-11 | 古长澍 | A kind of new work engine |
| CN107218119B (en) * | 2017-08-09 | 2020-06-23 | 徐芝香 | Single-supercharger double-cylinder engine |
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