CN108223121A - Two stroke engine - Google Patents
Two stroke engine Download PDFInfo
- Publication number
- CN108223121A CN108223121A CN201810249740.7A CN201810249740A CN108223121A CN 108223121 A CN108223121 A CN 108223121A CN 201810249740 A CN201810249740 A CN 201810249740A CN 108223121 A CN108223121 A CN 108223121A
- Authority
- CN
- China
- Prior art keywords
- piston
- cylinder
- stroke
- exhaust
- high pressure
- 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
- 239000003921 oil Substances 0.000 claims abstract description 9
- 239000000295 fuel oil Substances 0.000 claims abstract description 8
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 239000007789 gas Substances 0.000 claims description 30
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 239000000446 fuel Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000002485 combustion reaction Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 230000007547 defect Effects 0.000 abstract description 3
- 239000010721 machine oil Substances 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/0002—Controlling intake air
-
- 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
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
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 Two stroke engines, belong to technical field of engines.The present invention solves existing two stroke engine machine oil and fuel oil is mixed and burned, the problems such as the defects of exhaust emission is serious, four-stroke engine working efficiency is not high enough, Two stroke engine, including piston and piston/cylinder, the top of piston/cylinder is equipped with high pressure admission valve and exhaust valve, it is characterised in that：ECU controls connection high pressure admission valve and atomizer, its course of work are as follows：One-stroke：Complete air inlet, oil spout, compression stroke；Two-stroke：Residual high pressure gas in piston/cylinder is gushed out by exhaust valve；Above-mentioned one-stroke, two-stroke cycle working in reciprocating mode realize that one-stroke, two-stroke only engine crankshaft do work one week.The present invention has many advantages, such as engine power doubles, engine volume is reduced, and gas oil ratio is best, energy saving, with good economic efficiency and vast market prospect.
Description
Technical field
The present invention relates to technical field of engines, specially a kind of Two stroke engine.
Background technology
At present, two stroke engine of the prior art with four-stroke engine there are certain difference, start by two-stroke
Exhaust outlet is located on the side wall of piston/cylinder by machine, in piston toward when moving below piston/cylinder, is exposed exhaust outlet and is exhausted,
Such two stroke engine is in order to lubricate, it is necessary to by the way of the mixed firinor fuel burning of machine oil vapour, so exhaust emission is serious；It is existing
Four-stroke engine then overcome the defects of capacity is insufficient, but it needs piston to do work during exhaust, by piston
Exhaust gas in cylinder body squeezes out piston/cylinder, therefore, must be provided with four strokes, working efficiency still cannot obtain expeditiously
It improves.
Invention content
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides Two stroke engines, solve above structure two-stroke
The defects of engine emission is seriously polluted, four-stroke engine working efficiency is not high enough.
(2) technical solution
To achieve the above object, the present invention provides following technical solution：
Two stroke engine, including piston and piston/cylinder, the top of piston/cylinder is equipped with high pressure admission valve and row
Valve, it is characterised in that：ECU controls connection high pressure admission valve and atomizer, its course of work are as follows：
One-stroke：Piston to piston/cylinder top dead centre move when, ECU control high pressure admission valve sprayed into piston/cylinder newly
Fresh air, at this time exhaust valve opening state, fresh air cleaning exhaust gas inside cylinder are simultaneously discharged by exhaust valve, and then exhaust valve is in
Closed state, ECU control atomizers spray into quantitative fuel oil into piston/cylinder, the proportioning of fresh air and fuel oil by ECU into
Row control when the top dead centre of piston motion to piston/cylinder, completes air inlet, oil spout, compression stroke；
Two-stroke：Compressed mixed oil and gas explodes, and explosion transmission power makes piston be transported to piston/cylinder lower dead center
When dynamic, exhaust valve is opened at this time, and the residual high pressure gas in piston/cylinder is gushed out by exhaust valve；
Above-mentioned one-stroke, two-stroke cycle working in reciprocating mode realize that one-stroke, two-stroke only engine crankshaft do work one week.
Preferably, the piston and the number of piston/cylinder are 1 or more.
Preferably, in the one-stroke and two-stroke：
Piston is moved to piston/cylinder lower dead center, and 120 degree of the motion process crank rotation, pressure is big in piston/cylinder at this time
About 0.3mpa-0.6mpa is opened by engine timing gear control exhaust valve, and exhaust gas is flowed out with velocity of sound, then in-cylinder pressure
Reduction switchs to subsonic speed free exhaust, in-cylinder pressure 0.11-0.13mpa, and discharge exhaust gas accounts for exhaust gas inside cylinder total amount as 70%-
80%, fresh air is sprayed into piston/cylinder with velocity of sound according to throttle sensor signal high pressure admission valve, injection pressure exists
0.2-0.3mpa controls jet amount by ECU,
Bent axle is rotated further 90 degree, and in the motion process, exhaust valve closing, piston is moved to piston/cylinder top dead centre, into
Row compressed air, ECU feed back flow of fresh air by oxygen sensor on exhaust duct and break one's promise breath and cooperation throttle sensor
Rotating speed requirement, to carrying out secondary air injection in piston/cylinder, until piston/cylinder in formed optimal air-fuel ratio,
Bent axle is rotated further, and completes to rotate for one week, piston motion to piston/cylinder top dead centre, and mixed gas is completed to press
Contracting starts work by combustion.
Preferably, high pressure admission valve is located at the top of piston/cylinder, the vertical air that sprays is in piston tip, and air is through work
The reflection of plug top generates cyclone and forms cushioning effect, and Accelerating Removal exhaust gas simultaneously avoids mixing with exhaust gas.
(3) advantageous effect
The present invention provides Two stroke engines, have following advantageous effect：
1st, work of the invention is doubled than the engine power of the prior art, if in order to obtain and available engine
Same Efficieney, it is only necessary to the half capacity of engine of the invention.
2nd, engine of the invention can greatly reduce volume compared with the prior art, reduce engine so as to reduce production
Cost mitigates vehicle load and engine bin space, fuel economy is greatly improved.
3rd, the optimum mixture ratio of the accurate control fuel oil of the present invention and gas, makes engine be in optimum Working.
4th, the advantages that present invention has environmental protection and energy saving, structure is simplified, has vast market prospect.
5th, the present invention is suitable for gasoline engine and diesel engine.
Description of the drawings
Fig. 1 is the structure motion schematic diagram of the present invention；
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
As shown in Figure 1, the present invention provides a kind of technical solution：
Two stroke engine, including piston 1 and piston/cylinder 2, the top of piston/cylinder 2 is equipped with high pressure admission valve 3
And exhaust valve 4, ECU control connection high pressure admissions valve 3 and atomizer 5, its course of work are as follows：
One-stroke：Piston 1 to 2 top dead centre of piston/cylinder move when, ECU controls high pressure admission valve 3 is sprayed into piston/cylinder 2
Enter fresh air, at this time 4 opening state of exhaust valve, fresh air clears away exhaust gas inside cylinder and passes through exhaust valve 4 and discharges, and is then vented
Door 4 is closed, and ECU control atomizers 5 spray into the proportioning of quantitative fuel oil, fresh air and fuel oil into piston/cylinder
It is controlled by ECU, when piston 1 moves to the top dead centre of piston/cylinder 2, completes air inlet, oil spout, compression stroke；
Two-stroke：Compressed mixed oil and gas explodes, and explosion transmission power makes piston 1 to 2 lower dead center of piston/cylinder
During movement, exhaust valve 4 is opened at this time, and the residual high pressure gas in piston/cylinder is gushed out by exhaust valve 4；
Above-mentioned one-stroke, two-stroke cycle working in reciprocating mode realize that one-stroke, two-stroke only engine crankshaft do work one week.
Preferably, the piston 1 and the number of piston/cylinder 2 are 1 or more.
Preferably, in the one-stroke and two-stroke：
Piston 1 is moved to 2 lower dead center of piston/cylinder, which rotates 120 degree, at this time 2 internal pressure of piston/cylinder
Power is about 0.3mpa-0.6mpa, is opened by engine timing gear control exhaust valve 4, exhaust gas is flowed out with velocity of sound, then in cylinder
Pressure reduction switchs to subsonic speed free exhaust, in-cylinder pressure 0.11-0.13mpa, and discharge exhaust gas accounts for exhaust gas inside cylinder total amount and is
70%-80% sprays fresh air, injection pressure into piston/cylinder 2 according to throttle sensor signal high pressure admission valve 3 with velocity of sound
Power controls jet amount in 0.2-0.3mpa, by ECU,
Bent axle is rotated further 90 degree, and in the motion process, exhaust valve 4 is closed, and piston 1 is moved to 2 top dead centre of piston/cylinder,
Carry out compressed air, ECU feeds back that flow of fresh air breaks one's promise breath and cooperation throttle is sensed by oxygen sensor on exhaust duct
The rotating speed requirement of device, to carrying out secondary air injection in piston/cylinder 2, until optimal air-fuel ratio is formed in piston/cylinder 2,
Bent axle is rotated further, and completes to rotate for one week, and piston 1 moves to 2 top dead centre of piston/cylinder, and mixed gas is completed to press
Contracting starts work by combustion.
Preferably, high pressure admission valve 3 is located at the top of piston/cylinder 2, the vertical air that sprays is in piston tip, air warp
The reflection of 1 top of piston generates cyclone and forms cushioning effect, and Accelerating Removal exhaust gas simultaneously avoids mixing with exhaust gas.
The structure of the present invention is similar to existing four-stroke engine, but the present invention only needs two strokes to complete work.
Left side is two-stroke state in Fig. 1, and right side is one-stroke state.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any this practical relationship or sequence.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Non-exclusive inclusion, so that process, method, article or equipment including a series of elements not only will including those
Element, but also including other elements that are not explicitly listed or further include as this process, method, article or equipment
Intrinsic element.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (4)
1. Two stroke engine, including piston and piston/cylinder, the top of piston/cylinder is equipped with high pressure admission valve and exhaust
Door, it is characterised in that：ECU controls connection high pressure admission valve and atomizer, its course of work are as follows：
One-stroke：Piston to piston/cylinder top dead centre move when, ECU control high pressure admission valve fresh sky is sprayed into piston/cylinder
Gas, at this time exhaust valve opening state, fresh air cleaning exhaust gas inside cylinder are simultaneously discharged by exhaust valve, and then exhaust valve, which is in, closes
State, ECU control atomizers spray into quantitative fuel oil into piston/cylinder, and the proportioning of fresh air and fuel oil is controlled by ECU
System when the top dead centre of piston motion to piston/cylinder, completes air inlet, oil spout, compression stroke；
Two-stroke：Compressed mixed oil and gas explodes, explosion transmission power make piston to piston/cylinder lower dead center move when,
Exhaust valve is opened at this time, and the residual high pressure gas in piston/cylinder is gushed out by exhaust valve；
Above-mentioned one-stroke, two-stroke cycle working in reciprocating mode realize that one-stroke, two-stroke only engine crankshaft do work one week.
2. Two stroke engine according to claim 1, it is characterised in that：The piston and the number of piston/cylinder
Mesh is 1 or more.
3. Two stroke engine according to claim 1, it is characterised in that：In the one-stroke and two-stroke：
Piston is moved to piston/cylinder lower dead center, and 120 degree of the motion process crank rotation, pressure is about in piston/cylinder at this time
0.3mpa-0.6mpa is opened by timing gears control exhaust valve, and exhaust gas is flowed out with velocity of sound, and then in-cylinder pressure reduction switchs to Asia
Velocity of sound free exhaust, in-cylinder pressure 0.11-0.13mpa, discharge exhaust gas accounts for exhaust gas inside cylinder total amount as 70%-80%, according to oil
Door sensor signal high pressure admission valve sprays fresh air into piston/cylinder with velocity of sound, injection pressure in 0.2-0.3mpa, by
ECU controls jet amount,
Bent axle is rotated further 90 degree, and in the motion process, exhaust valve closing, piston is moved to piston/cylinder top dead centre, is pressed
Contracting air, ECU is fed back flow of fresh air and broken one's promise by oxygen sensor on exhaust duct breath and coordinates turning for throttle sensor
Speed requirement, to carrying out secondary air injection in piston/cylinder, until optimal air-fuel ratio is formed in piston/cylinder,
Bent axle is rotated further, and completes to rotate for one week, piston motion to piston/cylinder top dead centre, and mixed gas is completed to compress, is opened
Beginning work by combustion.
4. Two stroke engine according to claim 1, it is characterised in that：High pressure admission valve is located at piston/cylinder
Top, in piston tip, air reflects generation cyclone through piston tip and forms cushioning effect, Accelerating Removal the vertical air that sprays
Exhaust gas simultaneously avoids mixing with exhaust gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810249740.7A CN108223121A (en) | 2018-03-26 | 2018-03-26 | Two stroke engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810249740.7A CN108223121A (en) | 2018-03-26 | 2018-03-26 | Two stroke engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223121A true CN108223121A (en) | 2018-06-29 |
Family
ID=62659005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810249740.7A Pending CN108223121A (en) | 2018-03-26 | 2018-03-26 | Two stroke engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223121A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103277A (en) * | 1987-05-03 | 1988-11-23 | 让·弗莱德里克·梅尔希奥尔 | Improvement and method of operating thereof to two-stroke internal-combustion engine |
| CN2316463Y (en) * | 1997-12-15 | 1999-04-28 | 潘文豪 | Two-stroke IC engine |
| CN104204440A (en) * | 2012-04-11 | 2014-12-10 | 三菱重工业株式会社 | 2-cycle gas engine |
-
2018
- 2018-03-26 CN CN201810249740.7A patent/CN108223121A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87103277A (en) * | 1987-05-03 | 1988-11-23 | 让·弗莱德里克·梅尔希奥尔 | Improvement and method of operating thereof to two-stroke internal-combustion engine |
| CN2316463Y (en) * | 1997-12-15 | 1999-04-28 | 潘文豪 | Two-stroke IC engine |
| CN104204440A (en) * | 2012-04-11 | 2014-12-10 | 三菱重工业株式会社 | 2-cycle gas engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |
|
| RJ01 | Rejection of invention patent application after publication |