CN106870130A - A kind of pair of cylinder combined type two-stage engine - Google Patents
A kind of pair of cylinder combined type two-stage engine Download PDFInfo
- Publication number
- CN106870130A CN106870130A CN201710238573.1A CN201710238573A CN106870130A CN 106870130 A CN106870130 A CN 106870130A CN 201710238573 A CN201710238573 A CN 201710238573A CN 106870130 A CN106870130 A CN 106870130A
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- China
- Prior art keywords
- piston
- mixing chamber
- combustion chamber
- bent axle
- combined type
- 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.)
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Classifications
-
- 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
-
- 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
-
- 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
- F02B2075/1804—Number of cylinders
- F02B2075/1808—Number of cylinders two
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
The present invention relates to a kind of pair of cylinder combined type two-stage engine, including the body with combuster, main piston is slidingly sealed with combustion chamber, main piston is connected by master connecting-rod with bent axle, the first air inlet and spark plug are provided with combustion chamber, the mixing chamber with combustion chamber is additionally provided with the body, gas bleeder valve is provided with passage between combustion chamber and mixing chamber, the secondary piston that sealing is slidably matched is provided with the mixing chamber, described piston is hinged by time connecting rod with bent axle, and the second air inlet and exhaust outlet are provided with mixing chamber.Main piston and time piston alternate motion under the rotation of bent axle.The present invention can be greatly lowered the exhaust temperature of tail gas, improve the mechanical efficiency of body, reduce the temperature of body, and save energy consumption cuts operating costs.
Description
Technical field
The invention belongs to burning fuel acting dynamic power machine energy efficiency technical field, more particularly to a kind of pair of cylinder combination
The stage motor of formula two.
Background technology
Internal combustion engine is the high compression combustion chamber burning that cylinder internal is directly inputted after mixing liquid or gaseous fuel with air
Outburst produces power.This is also a kind of heat engine for converting heat into mechanical energy.
Sensu lato internal combustion engine not only includes stroke piston combustion engine, rotary engine and free-piston type hair
Motivation, etc. gas turbine also including rotary vane type, jet engine, but usually said internal combustion engine refers in piston type
Combustion engine.
Internal-combustion piston engine is the most universal with reciprocating-piston.Internal-combustion piston engine mixes fuel and air, in its vapour
In-cylinder combustion, the heat energy for discharging makes to produce the combustion gas of HTHP in cylinder.Combustion gas expands against piston work done, then by song
Handle linkage or other mechanisms export mechanical work, drive follower work.
Than relatively low, wherein gasoline engine only has 25% to 35% to the mechanical efficiency of current gasoline engine and diesel engine, and diesel engine is
35% to 45%.Exhaust temperature is up to 600 to 700 degree, that is to say, that 55% to 65% energy is lost in the way of heat.To the greatest extent
Pipe takes the technologies such as turbocharging and serves certain effect for improving effect, but affected by various factors, tail
Gas exhaust temperature is higher, and the temperature inside combustion engine is higher, causes many heats of engine all to be dissipated by tail gas and radiator
Hair is lost in.
Chinese patent mandate publication number CN103967652A discloses a kind of piston punching press spontaneous combustion pulse jet engine, institute
Engine is stated in cylinder built with ladder free-piston, composition one is first fired combustion chamber and a main chamber, main chamber
Front end have a spout equipped with pressure control switch, side fuel pipe and low pressure gas pipe by air inlet respectively with first combustion burning
Room and main chamber are communicated, and airway is provided with the leading inside of cylinder body.The two-way workmanship of this engine, piston seal is in cylinder
It is interior, difficulty is caused in production and processing, engine is operationally in the condition of high temperature, cylinder temperature distortion, the sealing to cylinder
Impact, cause main chamber or first combustion chamber that leakage situation can occur, while operationally, two combustion chambers of cylinder are successively
Acting, temperature can accelerate to raise, and the probability of the cylinder that causes to rise is significantly increased, final engine cannot normal work cause to scrap.
The content of the invention
The present invention is directed to the background technology technical problem to be solved, there is provided a kind of pair of cylinder combined type two-stage engine, energy
The exhaust temperature of tail gas is enough greatly lowered, the mechanical efficiency of cylinder is improved, the temperature of cylinder, save energy consumption, drop is reduced
Low running cost.
The present invention solves the technical scheme that is used of its above mentioned problem:A kind of pair of cylinder combined type two-stage engine, bag
The body with combuster is included, main piston is slidingly sealed with combustion chamber, main piston is connected by master connecting-rod with bent axle, in burning
The first air inlet and spark plug are provided with room.
The mixing chamber with combustion chamber is additionally provided with the body, is set on the passage between combustion chamber and mixing chamber
Gas bleeder valve is equipped with, the secondary piston that sealing is slidably matched is provided with the mixing chamber, described time piston passes through time connecting rod and bent axle
It is hinged, the second air inlet and exhaust outlet is provided with mixing chamber.
Preferably, the gas bleeder valve is the opening and closing valve with one-way conduction ability.
Preferably, the master connecting-rod and time connecting rod do alternate reciprocating motion under the rotarily driving of bent axle.
Preferably, face area of the described face area of piston more than main piston.
The invention has the advantages that:
1st, the mean temperature inside cylinder and pressure is greatly lowered, the gaseous mixture total amount of acting is accordingly increased, so that
Increase considerably mechanical efficiency;
2nd, delivery temperature and temperature cylinder are considerably reduced, so as to drastically reduce the area because by cooling system and tail
Heat excessively loses caused by gas discharge;
3rd, due to having increased considerably AIR Proportional, fuel combustion ratio can be improved, reduces aphlogistic fuel portion
Point, so as to reduce pollution;
4th, due to reducing the temperature inside cylinder, that is, ignition temperature is reduced, also avoids or be greatly reduced
Because the forming amount of nitrogen oxides caused by high pressure-temperature, reduces the pollution for environment by a relatively large margin.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described;
Fig. 1 is the structural representation of the preferred embodiment of the present invention;
In accompanying drawing:
10th, body,
20th, combustion chamber, 21, main piston, 22, master connecting-rod, the 23, first air inlet, 24, spark plug,
30th, mixing chamber, 31, secondary piston, 32, secondary connecting rod, the 33, second air inlet, 34, exhaust outlet,
40th, bent axle, 50, gas bleeder valve;
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant with the present invention.
Furthermore, it is necessary to explanation, unless stated otherwise or points out, the term that may relate to otherwise in specification
The description such as " first ", " second " is used only for distinguishing each component, element, step in specification etc., without being intended to indicate that
Each component, the logical relation between element, step or ordinal relation etc..
As illustrated, a kind of pair of cylinder combined type two-stage engine, including the body 10 with combuster 20, combustion chamber 20
In be slidingly sealed oily main piston 21, main piston 21 is connected by master connecting-rod 22 with bent axle 40, and first is provided with combustion chamber 20
Air inlet 23 and spark plug 24.
The mixing chamber 30 being connected with combustion chamber 20 is additionally provided with body 10, it is logical between combustion chamber 20 and mixing chamber 30
Gas bleeder valve 50 is provided with road, gas bleeder valve 50 is the opening and closing valve with one-way conduction ability, and gas bleeder valve 50 is from burning
The one-way conduction of mixing chamber 30 is arrived in room 20, and the secondary piston 31 that sealing is slidably matched is provided with mixing chamber 30, and secondary piston 31 is by secondary
Connecting rod 32 is hinged with bent axle 40, and master connecting-rod 22 and time connecting rod 32 do alternate reciprocating motion under the rotarily driving of bent axle 40,
The second air inlet 33 and exhaust outlet 34 are provided with mixing chamber 30.
In order to ensure that secondary piston 31 is obtained compared with high thrust at low pressures, the face area of secondary piston 31 is more than main work
The face area of plug 21, the i.e. diameter with diameter greater than combustion chamber 20 of mixing chamber 30.
Operation principle is as follows:
First stroke:The air-breathing of combustion chamber 20, mixing chamber 30 are vented
Main piston 21 is moved downward from top dead centre, and secondary piston 31 is moved upwards from lower dead center;
First air inlet 23 is opened, and spark plug 24 is closed, and gas bleeder valve 50 is closed, and the second air inlet 33 is closed, exhaust outlet 34
Open;
Combustion chamber 20 sucks air from the first air inlet 23, and mixing chamber 30 discharges air from exhaust outlet 34.
Second stroke:Combustion chamber 20 is compressed, the air-breathing of mixing chamber 30
Main piston 21 is moved upwards from lower dead center, and secondary piston 31 is moved downward from top dead centre;
First air inlet 23 is closed, and spark plug 24 is closed, and gas bleeder valve 50 is closed, and the second air inlet 33 is opened, exhaust outlet 34
Close;
Be compressed for gas by combustion chamber 20, and mixing chamber 30 sucks air from the second air inlet 33.
Mixing chamber 30 sucks air, it is ensured that secondary piston 31 avoids mixing chamber 30 from negative pressure occur during descending, resistance
Hinder bent axle 40 to do work, while body 10 can be cooled down, reduce the temperature of body 10.
3rd stroke:Combustion chamber 20 is done work, mixing chamber 30 compresses
Main piston 21 is moved downward from top dead centre, and secondary piston 31 is moved upwards from lower dead center;
First air inlet 23 is closed, and spark plug 24 is opened, and gas bleeder valve 50 is closed, and the second air inlet 33 is closed, exhaust outlet 34
Close;
Be compressed for air by work by combustion in combustion chamber 20, mixing chamber 30.
4th stroke:Combustion chamber 20 is vented, mixing chamber 30 does work
Main piston 21 is moved upwards from lower dead center, and secondary piston 31 is moved downward from top dead centre;
First air inlet 23 is closed, and spark plug 24 is closed, and gas bleeder valve 50 is opened, and the second air inlet 33 is closed, exhaust outlet 34
Close;
Gas is entered mixing chamber 30 by combustion chamber 20 from gas bleeder valve 50, and the combustion gas of HTHP is mixed with the air of mixing chamber 30
Merge and complete more fully to burn, while heating the air in these mixing chambers 30 rapidly, secondary piston 31 is applied together
Press and do work.
Due to being relatively large in diameter for mixing chamber 30, it is ensured that secondary piston 31 is because the increasing of lifting surface area at lower pressures
Obtain than larger thrust greatly.
Such as combustion chamber 20 burn after with the compressed air mixing temperature of mixing chamber 30 according to average computation.From following number
From the point of view of, in the case of extending volume of cylinder without increasing fuel, there is apparent increase piston pressure contrast combustion chamber 20
Effect.
With the comparing after ten times of 195 diesel engines and this diesel engine expanded volume:
Numbering | Project | Combustion chamber | Pattern that mixing chamber is fuel-efficient | Mixing chamber total power |
1 | Radius mm | 95 | 1500 | 1500 |
2 | Stroke mm | 95 | 95 | 95 |
3 | Delivery temperature K | 1000 | 370 | 1000 |
4 | Top dead centre compression temperature k | 1000 | 1000 | 1000 |
5 | Combustion gas explosion temperature K | 2000 | 1100 | 2000 |
6 | Lower dead center exhaust temperature K | 1000 | 370 | 1000 |
7 | Top dead centre pressure KG/cm2 | 26.0 | 13.8 | 26.0 |
8 | Piston lifting surface area cm2 | 70.6 | 706.0 | 706.0 |
9 | Top dead center piston stress KG | 1835.6 | 9742.8 | 18356 |
10 | Lower dead center pressure KG/cm2 | 0.6675 | 0.2328 | 0.6675 |
11 | Lower dead center piston stress KG | 47.1 | 164.4 | 471.3 |
The related data that above table is calculated according to formula PV=nRT.
The fuel-efficient pattern of mixing chamber 30 is expanded to from the combustion chamber 20 that can see calculated above, is exactly that mixing chamber 30 is mainly used in
Compressed air in heating and supercharging mixing chamber 30, can significantly increase the initial pressure of piston and the pressure of lower dead center, than list
Pure use combustion chamber 20 is burnt, and secondary piston 31 improves total stress of piston by a relatively large margin, can increase substantially the dynamic of diesel engine
Power performance, and exhaust temperature is greatly lowered.
Above-mentioned technology design can also be applied to space flight and aviation engine or other application field.
In sum, only presently preferred embodiments of the present invention, not for limiting the scope of the present invention, by above-mentioned
Description, relevant staff can carry out various change without departing from the scope of the technological thought of the present invention' completely
More and modification.The technical scope of this invention is not limited to the content on specification, all claimed ranges under this invention
Described shape, construction, feature and spiritual so-called impartial change and modification, all should include and scope of the presently claimed invention
It is interior.
Claims (4)
1. the body (10) of a kind of pair of cylinder combined type two-stage engine, including band combuster (20) is sliding in combustion chamber (20)
Dynamic sealing oil main piston (21), main piston (21) is connected by master connecting-rod (22) with bent axle (40), is set on combustion chamber (20)
There are the first air inlet (23) and spark plug (24),
It is characterized in that:
The mixing chamber (30) being connected with combustion chamber (20), combustion chamber (20) and mixing chamber are additionally provided with the body (10)
(30) gas bleeder valve (50) is provided with the passage between, the secondary piston that sealing is slidably matched is provided with the mixing chamber (30)
(31), described piston (31) is hinged by secondary connecting rod (32) with bent axle (40), and being provided with second on mixing chamber (30) enters
Gas port (33) and exhaust outlet (34).
2. cylinder combined type two-stage engines as claimed in claim 1 double, it is characterised in that:
The gas bleeder valve (50) is the opening and closing valve with one-way conduction ability.
3. cylinder combined type two-stage engines as claimed in claim 1 double, it is characterised in that:
The master connecting-rod (22) and time connecting rod (32) do alternate reciprocating motion under the rotarily driving of bent axle (40).
4. cylinder combined type two-stage engines as claimed in claim 1 double, it is characterised in that:
Face area of the described face area of piston (31) more than main piston (21).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710238573.1A CN106870130A (en) | 2017-04-13 | 2017-04-13 | A kind of pair of cylinder combined type two-stage engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710238573.1A CN106870130A (en) | 2017-04-13 | 2017-04-13 | A kind of pair of cylinder combined type two-stage engine |
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Publication Number | Publication Date |
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CN106870130A true CN106870130A (en) | 2017-06-20 |
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CN201710238573.1A Pending CN106870130A (en) | 2017-04-13 | 2017-04-13 | A kind of pair of cylinder combined type two-stage engine |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111120090A (en) * | 2020-02-10 | 2020-05-08 | 梁秋萍 | Energy storage type power device |
-
2017
- 2017-04-13 CN CN201710238573.1A patent/CN106870130A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111120090A (en) * | 2020-02-10 | 2020-05-08 | 梁秋萍 | Energy storage type power device |
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