CN102383981B - Gas intake device on engine - Google Patents
Gas intake device on engine Download PDFInfo
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- CN102383981B CN102383981B CN201110294766.1A CN201110294766A CN102383981B CN 102383981 B CN102383981 B CN 102383981B CN 201110294766 A CN201110294766 A CN 201110294766A CN 102383981 B CN102383981 B CN 102383981B
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- engine
- air inlet
- air
- air intake
- intake branch
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Abstract
The invention discloses a gas intake device on an engine, which is fixedly connected with a plurality of gas intake pipes of an engine cylinder. The gas intake device comprises a circular box-shaped part and a plurality of gas intake branch pipes, wherein the gas intake branch pipes are in one-to-one correspondence with the gas intake pipes, one ends of the gas intake branch pipes are connected with a tangential direction of the box-shaped part, and the other ends of the gas intake branch pipes are connected with the gas intake pipes. According to the gas intake device on the engine, gas intake is more uniform, burning is more complete, and thus the efficiency of the engine is improved.
Description
Technical field
The present invention relates to engine art, more particularly, relate to the air inlet system on a kind of engine.
Background technique
As everyone knows, engine produces power by burning by air-fuel mixture, and the gas handling system of engine comprised air-strainer, suction tude, entered valve train.Air, after air-strainer filters out impurity, flows through Air flow meter, and entering suction tude is to enter valve train again, and the proportionate oil gas of shape after mixing with the gasoline of oil nozzle ejection, sends into ignition in cylinder by air intake valve, produces power.
When engine running, each obtainable air quantity number that circulates, be the Fundamentals that determine engine power size, and the air inlet ability of engine is to weigh by " volumetric efficiency " and " pack effectiveness " of engine.The definition of " volumetric efficiency " is in each intake stroke, the air that cylinder sucks shared volume and ratio of steam-cylinder piston swept volume under atmospheric pressure.Why will be used in institute's air amount shared volume under atmospheric pressure is standard, while entering cylinder because of air, the external atmospheric pressure of pressure ratio in cylinder is low, and force value can change to some extent, so the volume under the atmospheric state of employing is as common standard.And by what in the time carrying out suction stroke, can suffer various intake resistances, add the high temperature action in casing top half, while therefore the volume of air in suction cylinder being converted into the state under a barometric pressure, the volume of certain little what cylinder, that is to say the certain little what 1 of volumetric efficiency of natural aspiration engine.The reduction of intake resistance, the raising of inner cylinder pressure, temperature reduce, exhaust back pressure reduces, the admission shop front is long-pending adds the volumetric efficiency that mostly can improve engine, and engine can reduce volumetric efficiency in the time of high rotation speed operation.The definition of " pack effectiveness " is that under the air quality and standard state sucking in each intake stroke, (1 barometric pressure, 20 ℃, density: 1.187Kg/) occupies the ratio of the dry air quality of the universe of steam-cylinder piston swept volume.High at atmospheric pressure, temperature is low, density is when high, the pack effectiveness of engine also will improve thereupon.Also can find out thus, what volumetric efficiency showed is the difference of engine configuration and engine performance that operating condition causes, and what pack effectiveness showed is the variation of engine performance that atmospheric conditions causes at that time of turning round.
The repacking basis of gas handling system will be improved engine " volumetric efficiency " exactly, can start with from admission line, and the repacking of intake duct can divide forming shape and material two aspects to talk.Change the shape object of intake duct at the flow velocity of what air inlet pressure accumulation (need of the unexpected standard-sized sheet of air throttle while acceleration for urgency) and increase air inlet, change intake duct material and be and be conceived to not absorb heat and lightweight, at present the most frequently used is exactly the material of carbon fiber, it does not inhale thermal property, can allow the complete high temperature that is not subject to engine chamber of temperature of air inlet affect, make the density of air inlet higher, the oxygen content of per unit volume increases, improve engine and exert oneself, unique shortcoming is that price is unattainable.The repacking of intake duct is often that shape and material change to receive maximum efficiency simultaneously, air-strainer is removed in the lump simultaneously, and suction port is extended to outside car, directly aims at front, to improve and increase suction pressure with the speed of a motor vehicle, improves air inflow.
The gas handling system of existing multi-cylinder gasoline engine, multiple suction tude collect in intake manifold, and each cylinder shares a Carburetor, between the air inlet of each cylinder, has interference, unfavorable to air inlet.Meanwhile, long have shortly because air intake branch has, the resistance of air inlet is different, thereby can make so the inhomogeneous problems such as engine power deficiency, vibration that cause of air inlet of each cylinder.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of efficiency higher, the air inlet system on the engine of sufficient air feed.
The technical solution adopted for the present invention to solve the technical problems is: the air inlet system on a kind of engine is provided, be fixedly connected with the multiple suction tude of engine cylinder, described air inlet system comprises circular box-shaped component and multiple air intake branch, described air intake branch and suction tude are one-to-one relationship, one end of described multiple air intake branches and the tangent direction of box-shaped component are joined, and the other end is connected with described suction tude.
In air inlet system on engine of the present invention, described air intake branch is heat-resistant rubber hose.
In air inlet system on engine of the present invention, described air intake branch is equal in length.
In air inlet system on engine of the present invention, described circular box-shaped component diameter is 100 millimeters.
In air inlet system on engine of the present invention, described air intake branch length is 45 millimeters.
In air inlet system on engine of the present invention, also comprise another cavity metal parts, communicate with at least one outlet pipe of engine, be close to upper surface or the lower surface of described circular box-shaped component.
In air inlet system on engine of the present invention, described metal parts material is copper.
In air inlet system on engine of the present invention, described metal parts is shaped as circle.
In air inlet system on engine of the present invention, it is 100 millimeters that described metal parts is shaped as diameter.
In air inlet system on engine of the present invention, described air intake branch number is 6.
Implement the air inlet system on engine of the present invention, there is following useful technique effect: the efficiency that air inlet is more full and uniform, improved engine.
Accompanying drawing explanation
Fig. 1 is a kind of engine structure schematic diagram of prior art of the present invention;
Fig. 2 is the air inlet system plan view on a kind of engine of the embodiment of the present invention;
Fig. 3 is the air inlet system plan view on a kind of engine of the embodiment of the present invention.
Embodiment
By describing technology contents of the present invention, structure characteristics in detail, being realized object and effect, below in conjunction with mode of execution and coordinate accompanying drawing to be explained in detail.
By common practise, we are known: engine can be divided into two cycle engine and four-stroke engine, and two cycle engine refers to that piston moves two strokes and bent axle and turns around and complete the engine of a work cycle in cylinder.Four-stroke engine refers to that piston moves four strokes or the bent axle cylinder that takes two turns and completes the engine of a work cycle, and these two kinds of engines can drive with various raw materials.
Refer to Fig. 1, in prior art of the present invention, a kind of engine structure schematic diagram, comprising:
Filler opening 10, spark plug 20, cylinder 30, air outlet 40, suction port 50, the tip 60, piston 70, connecting rod 80, crankshaft journal 90, bent axle 100, crankcase 110.Cylinder 30 body both sides are provided with air outlet 40 and suction port 50 relatively; Connecting rod 80 one end are articulated in a pin 60 (this pin 60 is worn the inside of tying in piston 70), and the other end is articulated on the interior set bent axle 100 of cylinder block 30 bottom crankcase 110, is conventionally specifically connected on the crankshaft journal 90 of bent axle 100.When piston 70 is at the oil gas of the inner upward stroke of cylinder block 30 summit compressed mixed, spark plug 20 is lighted the oil gas of compression and is exploded, piston 70 can be advanced to down stroke, output power by bent axle 100, and piston 70 is during to down stroke to air outlet 40, the waste gas of combustion explosion just can be discharged, the precompressed that the moment of discharging at waste gas can produce in air outlet 40 venturi effect and crankcase 110, make cylinder block 30 be negative pressure state, can suck the oil gas mixing by suction port 50 (being provided with one-way cock), now piston 70 utilizes connecting rod 80, the rotating power of bent axle 100, generation upward stroke promotes, and the oil gas of compressed mixed and igniting blast again, thereby promote piston 70 again to down stroke to be with dynamic crankshaft 100 to move.
Wherein, suction port 40 is installed into tracheae, and all suction tude directly connect intake manifold.
Refer to Fig. 2 and Fig. 3, the embodiment of the present invention, air inlet system on a kind of engine, be fixedly connected with the multiple suction tude of engine cylinder, air inlet system comprises circular box-shaped component 120 and multiple air intake branch 45, air intake branch 45 is one-to-one relationship with suction tude, and the tangent direction of one end of multiple air intake branches 45 and box-shaped component 120 is joined, and the other end is connected with suction tude.
Further, air intake branch 45 is heat-resistant rubber hose.
Further, air intake branch 45 is equal in length.
In the present invention, circular box-shaped component 120 diameters are 100 millimeters, and air intake branch 45 length are 45 millimeters.
The present invention omits traditional intake manifold, with a circular box replacement intake manifold, owing to there being certain increase air inlet effect just it to be called to pumping chamber, solved the problem that each cylinder air inlet is disturbed simultaneously, because each air intake branch is all to join with pumping chamber's tangent direction, so intake resistance greatly reduces, and the length of each air intake branch is also made a length.Fundamentally solve the problem of air inlet.The Main Function of supercharging improves air input of engine by air exactly, thereby improves power and the moment of torsion of motor.
By common practise, we learn, motor is the heart of engineering machinery, and gas handling system is the artery of motor, and the rationality of gas handling system directly affects performance, the life-span of motor, thereby affects performance, life-span and the feature of environmental protection of complete machine.The function of gas handling system is for motor provides clean, dry, sufficient air, and in system, primary clustering air filter, pipeline and design and installation thereof will directly affect performance, the stability of work, the reliability of the duty of engine.Due to the suction tude input fresh cold air of engine, if the temperature of air inlet is too low, gasoline will condense on tube wall, and especially, the temperature of carburetor type or TFI formula engine air inlet tube is very important.The waste gas of engine enters exhaust branch pipe through exhaust valve, enter outlet pipe by exhaust branch pipe again, catalyst and silencing apparatus, finally be drained in atmosphere by tailpipe, the outlet pipe output high-temperature hot air of engine, therefore,, from the angle of energy-conserving and environment-protective, can utilize the waste gas of discharge suitably to heat fresh cool air.
Accordingly, in the present invention, also comprise another cavity metal parts 125, communicate with at least one outlet pipe of engine, be close to upper surface or the lower surface of circular box-shaped component 120.Because shape box-shaped component 120 is all passed through in all air inlets, therefore preferably, cavity metal parts 125 is also circular, and cavity metal parts 125 is hot good conductor with circular box-shaped component 120, as material is metallic copper, metal parts shape 125 diameters are 100 millimeters.
Therefore, in the present invention, after engine cold-start, because the high-temp waste gas in cavity metal parts 125 has carried out suitable preheating by thermal radiation to the cool air of being close in circular box-shaped component 120, therefore, the engine of motor is supplied with to the hot air of proper temperature, having avoided the gasoline in cylinder to produce condenses, also impel gasoline fully to burn, thereby reduce the discharge of carbon monoxide, improved again engine low temperature runnability.
Implement engine of the present invention, there is following useful technique effect: thus the efficiency that air inlet is more even, burning has more fully improved engine.
By reference to the accompanying drawings embodiments of the invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment is only schematic; rather than restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not departing from the scope situation that aim of the present invention and claim protect, also can make a lot of forms, within these all belong to protection of the present invention.
Claims (4)
1. the air inlet system on an engine, be fixedly connected with the multiple suction tude of engine cylinder, it is characterized in that: described air inlet system comprises circular box-shaped component and multiple air intake branch, described circular box-shaped component diameter is 100 millimeters, described air intake branch length is 45 millimeters, described air intake branch and suction tude are one-to-one relationship, described air intake branch is equal in length, described air intake branch is heat-resistant rubber hose, one end of described multiple air intake branches and the tangent direction of box-shaped component are joined, the other end is connected with described suction tude, also comprise another cavity metal parts, communicate with at least one outlet pipe of engine, be close to upper surface or the lower surface of described circular box-shaped component, described metal parts is shaped as circle.
2. the air inlet system on engine according to claim 1, is characterized in that, described metal parts material is copper.
3. the air inlet system on engine according to claim 1, is characterized in that, it is 100 millimeters that described metal parts is shaped as diameter.
4. the air inlet system on engine according to claim 1, is characterized in that, described air intake branch number is 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294766.1A CN102383981B (en) | 2011-09-27 | 2011-09-27 | Gas intake device on engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110294766.1A CN102383981B (en) | 2011-09-27 | 2011-09-27 | Gas intake device on engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102383981A CN102383981A (en) | 2012-03-21 |
| CN102383981B true CN102383981B (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110294766.1A Expired - Fee Related CN102383981B (en) | 2011-09-27 | 2011-09-27 | Gas intake device on engine |
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| Country | Link |
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| CN (1) | CN102383981B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056451U (en) * | 1989-10-31 | 1990-04-25 | 钟江滢 | Energy saving and purifying device for petrol engine |
| CN2154357Y (en) * | 1993-03-12 | 1994-01-26 | 史光宗 | Oil saver for petrol engine |
| CN2567356Y (en) * | 2002-07-12 | 2003-08-20 | 扬动股份有限公司 | Air intake pipe of engine |
| CN202250500U (en) * | 2011-09-27 | 2012-05-30 | 上海北星实业有限公司 | Air intake device on engine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7066129B2 (en) * | 2003-10-06 | 2006-06-27 | General Motors Corporation | Intake manifold and runner apparatus |
| US7059289B2 (en) * | 2004-08-06 | 2006-06-13 | Lanxess Corporation | Air intake manifold with composite flange and method |
-
2011
- 2011-09-27 CN CN201110294766.1A patent/CN102383981B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2056451U (en) * | 1989-10-31 | 1990-04-25 | 钟江滢 | Energy saving and purifying device for petrol engine |
| CN2154357Y (en) * | 1993-03-12 | 1994-01-26 | 史光宗 | Oil saver for petrol engine |
| CN2567356Y (en) * | 2002-07-12 | 2003-08-20 | 扬动股份有限公司 | Air intake pipe of engine |
| CN202250500U (en) * | 2011-09-27 | 2012-05-30 | 上海北星实业有限公司 | Air intake device on engine |
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| Publication number | Publication date |
|---|---|
| CN102383981A (en) | 2012-03-21 |
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