CN114396338A - Internal combustion engine using steam to assist work - Google Patents
Internal combustion engine using steam to assist work Download PDFInfo
- Publication number
- CN114396338A CN114396338A CN202210076953.0A CN202210076953A CN114396338A CN 114396338 A CN114396338 A CN 114396338A CN 202210076953 A CN202210076953 A CN 202210076953A CN 114396338 A CN114396338 A CN 114396338A
- Authority
- CN
- China
- Prior art keywords
- combustion chamber
- air inlet
- internal combustion
- piston
- steam
- 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.)
- Pending
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 42
- 239000000446 fuel Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 239000000295 fuel oil Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 239000003502 gasoline Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
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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
- F02B47/00—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines
- F02B47/02—Methods of operating engines involving adding non-fuel substances or anti-knock agents to combustion air, fuel, or fuel-air mixtures of engines the substances being water or steam
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- 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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/0227—Control aspects; Arrangement of sensors; Diagnostics; Actuators
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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
- F02M25/00—Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel or fuel-air mixture
- F02M25/022—Adding fuel and water emulsion, water or steam
- F02M25/032—Producing and adding steam
- F02M25/035—Producing and adding steam into the charge intakes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- 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)
Abstract
The invention discloses an internal combustion engine with steam auxiliary acting, which comprises a cylinder, a piston movably arranged in the cylinder, a combustion chamber matched with the piston, a crankshaft connected with the piston through a connecting rod, a fuel injector, an air inlet pipe, an exhaust pipe connected with the combustion chamber, an air inlet valve arranged between the air inlet pipe and the combustion chamber, an exhaust valve arranged between the exhaust pipe and the combustion chamber, and a steam generating device, wherein a steam outlet of the steam generating device is connected to the air inlet pipe at the front end of the air inlet valve. The invention can fully utilize the heat value of the fuel oil and improve the use economy.
Description
Technical Field
The invention relates to an engine, in particular to an engine taking fuel oil as a power source.
Background
The internal combustion engine mainly takes gasoline and diesel oil as fuel, the thermal power of the internal combustion engine is 30 +/-10%, and the rest energy efficiency is completely wasted in the working process, so that the transportation cost is increased, and the environment pollution is relatively large. With the acceleration of industrialization and urbanization, automobiles with the discharge capacity within the range of 1.0-3.0 are widely popularized, and the tiny improvement on the fuel utilization rate of a single vehicle can generate a huge amplification effect, so that the method becomes one of key targets of technical innovation in the automobile industry.
Disclosure of Invention
The invention aims to provide an internal combustion engine which uses steam to assist in doing work, and the internal combustion engine can fully utilize the heat value of fuel oil and improve the use economy.
In order to solve the technical problem, the internal combustion engine with steam auxiliary acting comprises a cylinder, a piston is movably arranged in the cylinder, a combustion chamber matched with the piston is further included, the piston is connected with a crankshaft through a connecting rod, the internal combustion engine further comprises a fuel injector, an air inlet pipe and an exhaust pipe, the fuel injector is connected with the combustion chamber, an air inlet valve is arranged between the air inlet pipe and the combustion chamber, an exhaust valve is arranged between the exhaust pipe and the combustion chamber, the internal combustion engine further comprises a steam generating device, and a steam outlet of the steam generating device is connected to the air inlet pipe at the front end of the air inlet valve.
And the combustion chamber is also connected with a spark plug. When diesel is used as fuel, the engine uses compression ignition; when gasoline is used as the fuel, the engine is ignited by a spark plug.
The water vapor generating device comprises a water tank and a heat exchanger, wherein a coil is arranged in the heat exchanger, the heat exchanger is connected with the exhaust pipe, the inlet of the coil is connected with the water tank through a pipeline, and the outlet of the coil is connected with the water vapor outlet through an electromagnetic valve. And gas exhausted by the exhaust pipe is used as a heat source of the heat exchanger.
The advantages of the invention are embodied in that: the working efficiency of the engine is improved by conveying water vapor to the combustion chamber at regular time and quantity; the water vapor is generated by taking pure water as a medium and taking high-temperature engine tail gas as a heat source, so that the power consumption is further reduced, and the fuel utilization rate is improved. The internal combustion engine which uses the steam to assist work has the advantages of power increase and emission reduction.
Drawings
Fig. 1 is a schematic structural diagram of an internal combustion engine that uses steam to assist in work.
Detailed Description
As shown in fig. 1, the internal combustion engine using steam to assist work of the present invention includes a cylinder 1, a piston 2 movably disposed in the cylinder 1, a combustion chamber 3 matched with the piston 2, a crankshaft 10 connected to the piston 2 via a connecting rod 11, a fuel injector 4 connected to the combustion chamber 3, an intake pipe 6, an exhaust pipe 7, an intake valve 60 disposed between the intake pipe 6 and the combustion chamber 3, an exhaust valve 70 disposed between the exhaust pipe 7 and the combustion chamber 3, and a steam generator having a steam outlet connected to the intake pipe 6 at the front end of the intake valve 60.
The combustion chamber 3 is also connected with an ignition plug 5.
The water vapor generating device comprises a water tank 8 and a heat exchanger 80, wherein a coil 83 is arranged in the heat exchanger 80, the heat exchanger 80 is connected with the exhaust pipe 7, an inlet of the coil 83 is connected with the water tank 8 through a pipeline, and an outlet of the coil 83 is connected with the water vapor outlet through an electromagnetic valve 82. The gas discharged from the exhaust pipe 7 serves as a heat source of the heat exchanger 80.
The device also comprises a control system which is used for controlling the air injection time point and the air injection amount of the water vapor generation device and also used for controlling the stop of air injection.
The working process is as follows:
A. temperature rise phase
The internal combustion engine which performs work with the aid of the water vapor is provided with a temperature sensor and is used for measuring the temperature of the cylinder 1; after the engine is started, the electromagnetic valve 82 is in an initial state of closing, and in the working process of the engine, the temperature sensor measures the temperature at a specified time interval and feeds the temperature back to the control system. In this stage, the exhaust pipe 7 supplies heat to the heat exchanger 80 and generates steam through the coil 83. For safety, a constant pressure valve is further arranged on a pipeline at the rear end of the coil 83, and when the steam pressure is too high, the constant pressure valve automatically exhausts air and releases pressure.
B. Working phase
When the temperature of the cylinder 1 reaches a set threshold value, the control system gives a signal, at the moment, the electromagnetic valve 82 is opened, and the water vapor output channel is unblocked. During the working process of the engine, the water vapor is mixed with air and simultaneously enters the combustion chamber 3 to participate in work.
In the working process, the fuel oil is continuously combusted to generate high-temperature and high-pressure gas to do work; the proper amount of vapor generates pressure, so that the engine has the function of vapor acting.
The working principle is as follows: when the piston of the engine is downward, a proper amount of vapor and gasoline engine mixed gas are sucked by using the suction force of the piston, when the piston reaches the lowest part, the piston moves upward through the inertia force of a connecting rod, a crankshaft and a flywheel to compress air and vapor to the optimal ignition point above a cylinder, the gasoline engine is ignited by using a spark plug, fuel in the engine is ignited, and simultaneously the vapor sucked into the cylinder is heated to a very high temperature, so that a larger thrust force is obtained. When the piston is pushed down to the lowest position, the piston moves upwards by the inertia force of the connecting rod, the crankshaft and the flywheel, and the steam which is just formed and the waste gas generated by fuel combustion are discharged through the exhaust valve.
In the present invention, the best results are achieved only by introducing a suitable amount of steam into the cylinder. If the entering steam is too much, the faults of poor exhaust, engine weakness or flameout and the like can be caused, so that the method is suitable for the other way round. Through the cooperation of the control system and the electromagnetic valve 82, the water vapor suction amount can be accurately controlled.
C. Shut down and flame out
When the internal combustion engine of the present invention is turned off, the electromagnetic valve 82 should be closed and the engine should be turned off in order to prevent excessive water vapor from remaining in the combustion chamber. In order to realize the functions, a delay circuit is arranged on the flameout circuit, when a flameout signal is obtained, the control system firstly closes the electromagnetic valve 82, at the moment, the suction of water vapor is stopped, and after a set time length is reached, the engine is completely flamed out.
On the premise of the same conditions of vehicle conditions, road conditions, oil products and the like, the gasoline engine car with the displacement of 1.5L to 2.0L is tried, and the effects are shown in the following table:
table 1: fuel consumption comparison
The above embodiment demonstrates the operation mode of the internal combustion engine using gasoline as fuel with water vapor-assisted work. The invention is also applicable to diesel-fueled engines, in which case the ignition is carried out by compression, without the need for a spark plug.
The embodiments of the present invention include, but are not limited to, the above-mentioned embodiments, and those skilled in the art can make various corresponding changes and modifications according to the present invention without departing from the spirit and the substance of the present invention, and still fall into the scope of the present invention.
Claims (3)
1. The utility model provides an internal combustion engine with supplementary doing work of vapor, includes cylinder (1), cylinder (1) internalization is provided with piston (2), still include with combustion chamber (3) that piston (2) match, piston (2) are connected with bent axle (10) through connecting rod (11), still include with fuel injector (4), intake pipe (6), blast pipe (7) that combustion chamber (3) are connected, intake pipe (6) with be provided with admission valve (60) between combustion chamber (3), blast pipe (7) with be provided with discharge valve (70) between combustion chamber (3), its characterized in that: the air inlet valve further comprises a water vapor generating device, and a water vapor outlet of the water vapor generating device is connected into the air inlet pipe (6) at the front end of the air inlet valve (60).
2. An internal combustion engine that produces work with the assistance of steam as set forth in claim 1, wherein: the combustion chamber (3) is also connected with a spark plug (5).
3. An internal combustion engine with water vapour assisted work as claimed in claim 1 or claim 2, wherein: the water vapor generation device comprises a water tank (8) and a heat exchanger (80), wherein a coil (83) is arranged in the heat exchanger (80), the heat exchanger (80) is connected with the exhaust pipe (7), the inlet of the coil (83) is connected with the water tank (8) through a pipeline, and the outlet of the coil is connected with the water vapor outlet through an electromagnetic valve (82).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076953.0A CN114396338A (en) | 2022-01-24 | 2022-01-24 | Internal combustion engine using steam to assist work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210076953.0A CN114396338A (en) | 2022-01-24 | 2022-01-24 | Internal combustion engine using steam to assist work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114396338A true CN114396338A (en) | 2022-04-26 |
Family
ID=81232228
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210076953.0A Pending CN114396338A (en) | 2022-01-24 | 2022-01-24 | Internal combustion engine using steam to assist work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114396338A (en) |
-
2022
- 2022-01-24 CN CN202210076953.0A patent/CN114396338A/en active Pending
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