CN108644012A - A kind of high-efficient low-resistance type gasoline engine - Google Patents
A kind of high-efficient low-resistance type gasoline engine Download PDFInfo
- Publication number
- CN108644012A CN108644012A CN201810457064.2A CN201810457064A CN108644012A CN 108644012 A CN108644012 A CN 108644012A CN 201810457064 A CN201810457064 A CN 201810457064A CN 108644012 A CN108644012 A CN 108644012A
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- China
- Prior art keywords
- valve
- cylinder
- air
- inlet pipe
- air inlet
- 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
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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
- F02B75/32—Engines characterised by connections between pistons and main shafts and not specific to preceding main groups
-
- 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
- F02D41/30—Controlling fuel injection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
-
- 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
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/10—Air intakes; Induction systems
- F02M35/10373—Sensors for intake systems
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
Abstract
The invention discloses a kind of high-efficient low-resistance type gasoline engines, including cylinder and crankcase, the cylinder is made of cylinder block and piston, it is provided with connecting rod in the crankcase, described connecting rod one end is connect with piston, the cylinder top setting combuster and reflux air flue, the cylinder top is provided with fuel injector, the cylinder side is provided with air inlet pipe, fuel injector is used to spray into gasoline in air inlet pipe, cylinder, which is located at air inlet pipe, is provided with inlet valve, the cylinder other side is provided with exhaust pipe, cylinder, which is located at exhaust pipe, is provided with exhaust valve, positive gas flowmeter is installed in the air inlet pipe, the air inlet pipe is connect by the tracheae that flows back with reflux air flue, it is provided with reverse gas flowmeter on reflux tracheae, air throttle and valve for pressure difference.The present invention removes air throttle from air inlet pipe, to reduce the intake resistance in air inlet pipe, to reduce the pumping loss of gasoline engine.
Description
Technical field
The present invention relates to technology of gasoline engine field, specially a kind of high-efficient low-resistance type gasoline engine.
Background technology
For the gasoline engine of natural aspiration, fuel injector sprays into gasoline in air inlet pipe, makes gasoline and enters in air inlet pipe
Air be sufficiently mixed, later in petrol engine air admission stroke, due to the vacuum generated in cylinder in piston folding process
Degree, gaseous mixture are inhaled into from inlet valve in cylinder.In the process, the air throttle in air inlet pipe plays control air inflow
Effect, the aperture of air throttle are controlled by gas pedal.
When throttle opening is smaller, air velocity is slow in air inlet pipe, and the air inflow in the unit interval is small, corresponding
The distributive value of fuel injector is also small, and the gaseous mixture entered in cylinder at this time is few, and gasoline engine output power is small；When throttle opening is larger
When, air velocity is fast in air inlet pipe, and the air inflow in the unit interval is big, and the distributive value of corresponding fuel injector is also big, at this time
It is more into the gaseous mixture in cylinder, gasoline engine output power.
When gasoline engine is located at induction stroke, piston is moved down forms vacuum degree in cylinder, using the vacuum degree by air inlet pipe
In gaseous mixture sucking cylinder in, due to the inhibition of air throttle so that piston, which moves down, generates certain resistance in breathing process
Power, and the resistance needs the power by generation of doing work before engine to overcome, therefore in the intake stroke, needs consumption certain
Engine power, i.e., the mechanical energy that a part of engine generates, the mechanical energy of the partial loss is referred to as pumping loss.
It will be apparent that when throttle opening is smaller, then intake resistance is bigger, and engine is used for overcoming intake resistance and losing
Engine mechanical energy is more, i.e., pumping loss is bigger.Therefore, when engine is in underload working condition, the pump of engine
The ability that gas loss will seriously undermine engine and externally do work.
It is an object of the present invention to air throttle is removed from air inlet pipe, to reduce the intake resistance in air inlet pipe, from
And reduce the pumping loss of gasoline engine.
Invention content
The purpose of the present invention is to provide a kind of high-efficient low-resistance type gasoline engines, can either reduce the pumping loss of gasoline engine,
Distributive value can be precisely controlled again.
To achieve the above object, the present invention provides the following technical solutions：A kind of high-efficient low-resistance type gasoline engine, including cylinder and
Crankcase, the cylinder are made of cylinder block and piston, and connecting rod is provided in the crankcase, and described connecting rod one end connects with piston
It connects, the cylinder top setting combuster and reflux air flue, the cylinder top are provided with fuel injector, and the cylinder side is set
It is equipped with air inlet pipe, cylinder, which is located at air inlet pipe, is provided with inlet valve, and fuel injector is used to spray into gasoline in air inlet pipe, the cylinder
The other side is provided with exhaust pipe, and cylinder, which is located at exhaust pipe, is provided with exhaust valve, and positive gas stream is equipped in the air inlet pipe
Gauge, the air inlet pipe are connect by the tracheae that flows back with reflux air flue, and reverse gas flowmeter, solar term are provided on the tracheae that flows back
Door and valve for pressure difference.Positive gas flowmeter is located between reflux tracheae and the junction and inlet valve of air inlet pipe.
Preferably, the valve for pressure difference is made of valve body, spring, valve block, guide rod, valve opening, guide hole and valve seat, is equipped in valve body
Valve seat is provided with guide hole in valve seat, guide rod is provided in guide hole, guide rod outer end is connected with valve block, and valve block is set far from guide rod side
It is equipped with spring, spring is set between valve block and valve interior wall.The guide rod is snug fit in the guide hole in valve body.
Preferably, the valve for pressure difference is located between air throttle and reflux air flue, and the air throttle is located at reverse gas flow
Between meter and valve for pressure difference.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention removes air throttle from air inlet pipe, to subtract
Intake resistance in few air inlet pipe, to reduce the pumping loss of gasoline engine；Air throttle is set on reflux tracheae, utilizes solar term
Opening time and opening size of the door in compression stroke, to control the gaseous mixture quantity being back in air inlet pipe, to control
Remaining gaseous mixture quantity in cylinder, with this to control the power that gaseous mixture is sent out in each combustion process, realize reduce into
The technique effect of engine power is accurately controlled while atmidometer.
Using the cooperation between the spring, valve body and valve seat of valve for pressure difference, the effect of automatic open and close is realized, reaction is more
Sensitive, more rapidly, reliability higher improves protecting effect of the valve for pressure difference to air throttle, prevents high temperature and high pressure gas to solar term
The impact of door.
The gas stream entered by inlet valve in cylinder can be calculated in real time and accurately using positive gas flowmeter
Amount inevitably inversely enters in reflux tracheae due to entering a small amount of fresh air in air inlet pipe, compares, using single
Air flow meter measures air total amount, can more accurately be calculated using two gas flowmeters and is entered in real time by inlet valve
Fresh air flow in cylinder makes the mixing ratio of gasoline and air to more precisely compute the distributive value of each fuel injector
Example is closer with theory setting value.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of valve for pressure difference of the present invention.
Fig. 3 is the structural schematic diagram of induction stroke of the present invention.
Fig. 4 is the structural schematic diagram of compression stroke of the present invention.
Fig. 5 is the structural schematic diagram of expansion stroke of the present invention.
Fig. 6 is the structural schematic diagram of exhaust stroke of the present invention.
In figure：1- crankcases；2- connecting rods；3- cylinder block；4- pistons；5- cylinders；6- inlet valves；7- air throttles；8- air inlets
Pipe；9- fuel injectors；The combustion chambers 10-；11- exhaust pipes；12- exhaust valves；13- forward direction gas flowmeters；14- reflux air flues；15- is pressed
Difference limen；150- valve bodies；151- springs；152- valve blocks；153- guide rods；154- valve openings；155- guide holes；156- valve seats；16- flows back
Tracheae；The reverse gas flowmeters of 17-.
Specific implementation mode
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, it should be understood that preferred reality described herein
Apply example only for the purpose of illustrating and explaining the present invention and is not intended to limit the present invention.
Embodiment
- 6 are please referred to Fig.1, the present invention provides a kind of technical solution：A kind of high-efficient low-resistance type gasoline engine, including cylinder 5 and song
Axle box 1, cylinder 5 are made of cylinder block 3 and piston 4, and connecting rod 2 is provided in crankcase 1, and 2 one end of connecting rod is connect with piston 4, gas
Combuster 10 and reflux air flue 14 is arranged in 5 top of cylinder, and 5 top of cylinder is provided with fuel injector 9, and 5 side of cylinder is provided with air inlet
Pipe 8, cylinder 5, which is located at air inlet pipe 8, is provided with inlet valve 6, and fuel injector 9 is used to spray into gasoline in air inlet pipe 8, and cylinder 5 is another
Side is provided with exhaust pipe 11, and cylinder 5, which is located at exhaust pipe 11, is provided with exhaust valve 12, and positive gas stream is equipped in air inlet pipe 8
Gauge 13, air inlet pipe 8 are tightly connected by the tracheae 16 that flows back with reflux air flue 14, and reverse gas stream is provided on the tracheae 16 that flows back
Gauge 17, air throttle 7 and valve for pressure difference 15, valve for pressure difference 15 by valve body 150, spring 151, valve block 152, guide rod 153, valve opening 154, lead
Hole 155 and valve seat 156 form, and valve seat 156 is equipped in valve body 150, and guide hole 155 is provided on valve seat 156, is arranged in guide hole 155
There are guide rod 153,153 outer end of guide rod to be connected with valve block 152, valve block 152 is provided with spring 151, spring far from 153 side of guide rod
151 are set between 150 inner wall of valve block 152 and valve body, and guide rod 153 is snug fit in the guide hole 155 in valve body, valve for pressure difference 15
Between air throttle 7 and reflux air flue 14, air throttle 7 is between reverse gas flowmeter 17 and valve for pressure difference 15.Positive gas
Flowmeter body 13 is located between reflux tracheae 16 and the junction and inlet valve 6 of air inlet pipe 8.
Operation principle：1, induction stroke：Inlet valve 6 is opened, exhaust valve 12 is closed, and 4 downlink of piston, extraneous air enters
Air inlet pipe 8, air reach 8 end of air inlet pipe after positive gas flowmeter 13, the fuel injector 9 of 8 end of air inlet pipe into
Gasoline is sprayed into tracheae 8, the mixed gaseous mixture of gasoline of air and penetrating is entered by inlet valve 6 in cylinder 5.
During this, due to not having the obstruction of air throttle 7 in air inlet pipe 8, so intake resistance smaller, pumping loss is more
It is small, intake efficiency higher.Meanwhile flow back tracheae 16 on air throttle 7 completely close, can prevent due in induction stroke, gas
Negative pressure in cylinder 5 and cause the gas to flow back in tracheae 16 to be reversed in sucking cylinder 5 by reflux air flue 14, be also prevented from the external world
Air enter air inlet pipe 8 after, entered in cylinder 5 by reflux tracheae 16.
2, compression stroke：Inlet valve 6, exhaust valve 12 are all closed, 4 uplink of piston, adjust the aperture of air throttle 7 as needed
And the opening time, make the gaseous mixture in a part of cylinder 5 under the effect of uplink piston 4, by the air flue 14 that flows back, reflux tracheae 16
On valve for pressure difference 15, air throttle 7, return in air inlet pipe 8 after reverse gas flowmeter 17, and with the air newly entered under
It is entered back into secondary induction stroke in cylinder 5.
In this process, the mixed gas flow of reflux is adjusted using the aperture and opening time of air throttle 7, to make to stay in
Gaseous mixture quantity in cylinder 5 becomes actually required amount.Since in the stroke, the atmospheric pressure value in cylinder 5 is relatively low, 152 liang of valve block
The pressure difference of side is less than the setting value of its closing, and therefore, reflux gas can be smoothly through valve for pressure difference 15.
3, expansion stroke：Inlet valve 6, exhaust valve 12 and air throttle 7 are all closed, spark ignitor gaseous mixture, after burning
High temperature and pressure exhaust gas pushes piston 4 from top dead centre downlink, 152 right side of valve block of the valve for pressure difference 15 of high pressure exhaust gas arrival at this time, valve block
The pressure difference of 152 arranged on left and right sides is more than setting value, and valve block 152 overcomes the pulling force of spring 151 to be moved to the left and is pressed in valve seat 156
On, to close valve opening 154, the gas on 152 right side of valve block is hindered to enter in valve opening 154；To prevent the high temperature after burning high
It presses exhaust gas to reach air throttle 7, air throttle 7 is protected not to be damaged.
4, exhaust stroke：Exhaust valve 12 is opened, and inlet valve 6 and air throttle 7 are closed, 4 uplink of piston, the exhaust gas in cylinder 5
It is extruded from exhaust valve 12 by piston 4.At this point, due in cylinder 5 exhaust gas pressure it is still higher, the air pressure on the right side of valve block 152 is far super
Air pressure on the left of it, valve block 152 are pressed closely against under the differential pressure action of both sides, still on valve seat 156, and valve for pressure difference 15 is in pass
Closed state.Engine carries out induction stroke again later, moves in circles.
It is from cylinder 5 by the gas that air throttle 7 flows back in the above-mentioned complete job cycle being made of four strokes
Interior air, the gasoline mixture for coming out, being mixed into petrol molecule, the flow of the gaseous mixture of the reflux is by reverse gas flowmeter
17 measure, include in the air inlet pipe 8, by the throughput of positive gas flowmeter 13 gaseous mixture of above-mentioned reflux flow and
The fresh air flow entered from the external world, therefore positive gas flowmeter 13 is measured into numerical value and is measured with reverse gas flowmeter 17
Numerical value subtracts each other, and the numerical value obtained is exactly the amount of fresh air entered from the external world, and required oil spout is calculated according to the amount of fresh air
Amount, can obtain more accurate distributive value, oil spout is more accurately carried out to control fuel injector 9.Utilize positive gas flowmeter
13 can calculate the gas flow entered by inlet valve 6 in cylinder 5 in real time and accurately, due to entering in air inlet pipe 8
A small amount of fresh air enters by the junction of reflux tracheae 16 and air inlet pipe 8, inevitably inversely in reflux tracheae 16,
It compares, air total amount is measured using single air flow meter, can more accurately be calculated in real time using two gas flowmeters
The fresh air flow entered in cylinder 5 by inlet valve 6 makes vapour to more precisely compute the distributive value of each fuel injector 9
Oil is closer with the mixed proportion and theory setting value of air.
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.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features.
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (4)
1. a kind of high-efficient low-resistance type gasoline engine, including cylinder (5) and crankcase (1), it is characterised in that：The cylinder (5) is by gas
Cylinder body (3) and piston (4) composition, the crankcase (1) is interior to be provided with connecting rod (2), and described connecting rod (2) one end connects with piston (4)
It connects, cylinder (5) the top setting combuster (10) and reflux air flue (14), cylinder (5) top is provided with fuel injector
(9), cylinder (5) side is provided with air inlet pipe (8), and cylinder (5), which is located at air inlet pipe (8), is provided with inlet valve (6), oil spout
Device (9) is used to spray into gasoline in air inlet pipe (8), and cylinder (5) other side is provided with exhaust pipe (11), and cylinder (5) is located at
It is provided with exhaust valve (12) at exhaust pipe (11), positive gas flowmeter (13), the air inlet are installed on the air inlet pipe (8)
Pipe (8) is connect by the tracheae (16) that flows back with reflux air flue (14), and reverse gas flowmeter is provided on reflux tracheae (16)
(17), air throttle (7) and valve for pressure difference (15).
2. a kind of high-efficient low-resistance type gasoline engine according to claim 1, it is characterised in that：The valve for pressure difference (15) is by valve body
(150), spring (151), valve block (152), guide rod (153), valve opening (154), guide hole (155) and valve seat (156) composition, valve body
(150) it is equipped with valve seat (156) in, guide hole (155) is provided in valve seat (156), guide rod (153) is provided in guide hole (155), leads
Bar (153) outer end is connected with valve block (152), and valve block (152) is provided with spring (151), spring far from guide rod (153) side
(151) it is set between valve block (152) and valve body (150) inner wall.
3. a kind of high-efficient low-resistance type gasoline engine according to claim 2, it is characterised in that：The guide rod (153)) it slides and matches
Together in the guide hole (155) in valve body.
4. a kind of high-efficient low-resistance type gasoline engine according to claim 1, it is characterised in that：The valve for pressure difference (15) is located at section
Between valve (7) and reflux air flue (14), the air throttle (7) be located at reverse gas flowmeter (17) and valve for pressure difference (15) it
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457064.2A CN108644012B (en) | 2018-05-14 | 2018-05-14 | High-efficiency low-resistance gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810457064.2A CN108644012B (en) | 2018-05-14 | 2018-05-14 | High-efficiency low-resistance gasoline engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108644012A true CN108644012A (en) | 2018-10-12 |
| CN108644012B CN108644012B (en) | 2020-07-28 |
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ID=63755379
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810457064.2A Active CN108644012B (en) | 2018-05-14 | 2018-05-14 | High-efficiency low-resistance gasoline engine |
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| CN (1) | CN108644012B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19612451A1 (en) * | 1996-03-28 | 1997-10-02 | Siemens Ag | Intake system for an internal combustion engine |
| EP0639708B1 (en) * | 1993-08-19 | 1998-03-25 | Ekkardt Czub | Method for operating a vehicular internal combustion engine |
| CN101818708A (en) * | 2010-04-22 | 2010-09-01 | 杨更新 | Electronic fuel injection internal combustion engine without throttle plate |
| CN102121437A (en) * | 2010-01-08 | 2011-07-13 | 福特环球技术公司 | System and method for providing intake air to engine in vehicle |
| CN102477877A (en) * | 2010-11-24 | 2012-05-30 | 南京理工大学 | Efficient and rapid engine starting method using electromagnetic drive valve |
| CN103270288A (en) * | 2011-08-24 | 2013-08-28 | 丰田自动车株式会社 | Fluid control device and fuel supply system |
| CN104343590A (en) * | 2013-08-08 | 2015-02-11 | 福特环球技术公司 | Systems and methods for multiple aspirators for a constant pump rate |
-
2018
- 2018-05-14 CN CN201810457064.2A patent/CN108644012B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0639708B1 (en) * | 1993-08-19 | 1998-03-25 | Ekkardt Czub | Method for operating a vehicular internal combustion engine |
| DE19612451A1 (en) * | 1996-03-28 | 1997-10-02 | Siemens Ag | Intake system for an internal combustion engine |
| CN102121437A (en) * | 2010-01-08 | 2011-07-13 | 福特环球技术公司 | System and method for providing intake air to engine in vehicle |
| CN101818708A (en) * | 2010-04-22 | 2010-09-01 | 杨更新 | Electronic fuel injection internal combustion engine without throttle plate |
| CN102477877A (en) * | 2010-11-24 | 2012-05-30 | 南京理工大学 | Efficient and rapid engine starting method using electromagnetic drive valve |
| CN103270288A (en) * | 2011-08-24 | 2013-08-28 | 丰田自动车株式会社 | Fluid control device and fuel supply system |
| CN104343590A (en) * | 2013-08-08 | 2015-02-11 | 福特环球技术公司 | Systems and methods for multiple aspirators for a constant pump rate |
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| Publication number | Publication date |
|---|---|
| CN108644012B (en) | 2020-07-28 |
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