CN202250500U - Air intake device on engine - Google Patents
Air intake device on engine Download PDFInfo
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- CN202250500U CN202250500U CN2011203699043U CN201120369904U CN202250500U CN 202250500 U CN202250500 U CN 202250500U CN 2011203699043 U CN2011203699043 U CN 2011203699043U CN 201120369904 U CN201120369904 U CN 201120369904U CN 202250500 U CN202250500 U CN 202250500U
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- Prior art keywords
- engine
- air inlet
- air intake
- air
- inlet system
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Abstract
The utility model discloses an air intake device on an engine, which is fixedly connected with a plurality of air inlet pipes of an engine cylinder; the air intake device comprises a round box-shaped part and a plurality of air intake branch pipes, the air intake branch pipe and the air inlet pipe are in a corresponding relation, one end of each air intake branch pipe is connected with the box-shaped part in a tangential direction, and the other end of the air intake branch pipe is connected with the air inlet pipe. In the air intake device on the engine, the air intake is uniform, and the burning is more sufficient, so as to improve the engine efficiency.
Description
Technical field
The utility model relates to engine art, more particularly, relates to the air inlet system on a kind of engine.
Background technique
As everyone knows, engine is by producing power through oil gas mixed combustion, and the gas handling system of engine has comprised air-strainer, suction tude, intake valve mechanism.Air flows through Air flow meter after air-strainer filters out impurity, getting into suction tude is to get into valve train again, mixes the oil gas that the back forms proper proportion with the gasoline of oil nozzle ejection, sends into ignition in the cylinder by air intake valve, produces power.
During engine running, each obtainable air quantity number that circulates is the Fundamentals of decision engine power size, and the air inlet ability of engine to be " volumetric efficiency " by engine reach " pack effectiveness " weighs.The definition of " volumetric efficiency " is in each intake stroke, cylinder institute inhaled air shared volume and ratio of steam-cylinder piston swept volume under atmospheric pressure.Why to be used in the air that sucks shared volume under atmospheric pressure be standard; Be when getting into cylinder because of air; The external atmospheric pressure of pressure ratio in the cylinder is low, and force value can change to some extent, so adopt volume under the atmospheric state as common standard.And by what when carrying out suction stroke; Can suffer various intake resistances, add the high temperature action in the casing top half, therefore will suck the interior volume of air of cylinder when being converted into the state under the 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 then can reduce volumetric efficiency when high rotation speed operation.The definition of " pack effectiveness " is (1 barometric pressure, 20 ℃, density: 1.187Kg/) occupy the ratio of the dry air quality of the universe of steam-cylinder piston swept volume in each intake stroke under institute's inhaled air quality and the standard state.High at atmospheric pressure, temperature is low, when density is high, the pack effectiveness of engine also will improve thereupon.Can find out also that thus what volumetric efficiency showed is the difference of engine configuration and engine performance that operating condition causes, what pack effectiveness showed then 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.The shape purpose that changes intake duct is at what air inlet pressure accumulation (need of the unexpected standard-sized sheet of air throttle during for anxious the acceleration) and increase the flow velocity of air inlet, changes the intake duct material and be to be conceived to not absorb heat and in light weight, present the most frequently used be exactly the material of graphite fiber; The characteristic that it does not absorb heat; Can let the temperature of air inlet is intact not influenced by the high temperature of engine chamber, make the density of air inlet higher, i.e. the oxygen content of per unit volume increase; Improve engine and exert oneself, unique shortcoming is that price is unattainable.The repacking of intake duct often is that shape and material change to receive maximum efficiency simultaneously, simultaneously air-strainer is removed in the lump, and suction port is extended to outside the car, directly aims at the place ahead, so that improve the increase suction pressure with the speed of a motor vehicle, improves air inflow.
The gas handling system of existing multi-cylinder gasoline engine, a plurality of suction tude collect in the intake manifold, and the shared Carburetor of each cylinder has interference between the air inlet of each cylinder, and is unfavorable to air inlet.Simultaneously, because air intake branch has length that weak point is arranged, the resistance of air inlet has nothing in common with each other, thereby can make the inhomogeneous problems such as engine power deficiency, vibration that cause of air inlet of each cylinder like this.
The model utility content
The technical problem that the utility model will solve is, provides a kind of efficient higher, the air inlet system on the engine of sufficient air feed.
The utility model solves the technological scheme that its technical problem adopted: the air inlet system on a kind of engine is provided; Be fixedly connected with a plurality of suction tude of engine cylinder; Described air inlet system comprises circular box-shaped component and a plurality of air intake branch; Described air intake branch and suction tude are one-to-one relationship, and an end of described a plurality of air intake branches and the tangent direction of box-shaped component are joined, and the other end is connected with described suction tude.
In the air inlet system on the described engine of the utility model, said air intake branch is a heat-resistant rubber hose.
In the air inlet system on the described engine of the utility model, said air intake branch equal in length.
In the air inlet system on the described engine of the utility model, described circular box-shaped component diameter is 100 millimeters.
In the air inlet system on the described engine of the utility model, described air intake branch length is 45 millimeters.
In the air inlet system on the described engine of the utility model, also comprise another cavity metal parts, communicate, be close to the upper surface or the lower surface of described circular box-shaped component with at least one outlet pipe of engine.
In the air inlet system on the described engine of the utility model, described metal parts material is a copper.
In the air inlet system on the described engine of the utility model, described metal parts is shaped as circle.
In the air inlet system on the described engine of the utility model, it is 100 millimeters that described metal parts is shaped as diameter.
In the air inlet system on the described engine of the utility model, described air intake branch number is 6.
Implement the air inlet system on the engine of the utility model, have following beneficial technical effects: the efficient that air inlet is more full and uniform, improved engine.
Description of drawings
Fig. 1 is a kind of engine structure schematic representation of the utility model existing technology;
Fig. 2 is the air inlet system plan view on a kind of engine of the utility model embodiment;
Fig. 3 is the air inlet system plan view on a kind of engine of the utility model embodiment.
Embodiment
By the technology contents, the structure characteristics that specify the utility model, realized purpose and effect, know clearly below in conjunction with mode of execution and conjunction with figs. and give explanation.
By common practise, we can know: the engine motor can be divided into two cycle engine and four-stroke engine, and two cycle engine is meant that piston moves two strokes and bent axle and turns around and accomplish the engine of a work cycle in the cylinder.Four-stroke engine is meant that piston moves four strokes or the bent axle cylinder that takes two turns and accomplishes the engine of a work cycle, and these two kinds of engines can use various raw materials to drive.
See also Fig. 1, in the utility model existing technology, a kind of engine structure schematic representation comprises:
Filler opening 10, spark plug 20, cylinder 30, air outlet 40, suction port 50, pin 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 1 ends 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 bent axle 100 set in the cylinder block 30 bottom crankcases 110, specifically is connected on the crankshaft journal 90 of bent axle 100 usually.When the oil gas of piston 70 in cylinder block 30 inner upward stroke summit compressed mixed, spark plug 20 is lighted the oil gas of compression and is exploded, and can piston 70 be advanced to down stroke; Output power through bent axle 100, and piston 70 is when down stroke to air outlet 40, the waste gas of combustion explosion just can be discharged; Moment that waste gas is discharged can be in the air outlet 40 produce venturi effect and crankcase 110 precompressed; Make cylinder block 30 be negative pressure state, can suck the oil gas that mixes by suction port 50 (being provided with one-way cock), this moment, piston 70 utilized connecting rod 80; The rotating power of bent axle 100; The promotion of generation upward stroke, and the oil gas of compressed mixed and igniting blast once more moved so that drive bent axle 100 to down stroke thereby promote piston 70 once more.
Wherein, suction port 40 is installed into tracheae, and all suction tude directly connect the intake manifold.
See also Fig. 2, Fig. 3 and Fig. 4, the utility model embodiment; Air inlet system on a kind of engine; Be fixedly connected with a plurality of suction tude of engine cylinder, air inlet system comprises circular box-shaped component 120 and a plurality of air intake branch 45, and air intake branch 45 is one-to-one relationship with suction tude; One end of a plurality of air intake branches 45 and the tangent direction of box-shaped component 120 are joined, and the other end is connected with suction tude.
Further, air intake branch 45 is a heat-resistant rubber hose.
Further, air intake branch 45 equal in length.
In the utility model, circular box-shaped component 120 diameters are 100 millimeters, and air intake branch 45 length are 45 millimeters.
The utility model comes down to traditional intake manifold is omitted; Box with a circle replaces the intake manifold; Owing to have certain increase air inlet effect just to be called the pumping chamber to it, solved the problem that each cylinder air inlet is disturbed simultaneously, because each air intake branch all is to join with pumping chamber's tangent direction; So intake resistance significantly reduces, and the length of each air intake branch is also made a length.Fundamentally solved the problem of air inlet.The main effect of supercharging is exactly to improve air input of engine by air, thereby improves the power and the moment of torsion of motor.
By common practise, we learn that motor is the heart of engineering machinery, and gas handling system then is the artery of motor, and the rationality of gas handling system directly influences performance, the life-span of motor, thereby influences machine performance, life-span and the feature of environmental protection.The function of gas handling system is that the empty filter of primary clustering, pipeline and design and installation thereof will directly influence performance, the stability of work, the reliability of the duty of engine in the system for motor provides cleaning, drying, sufficient air.Because the suction tude of engine input fresh cold air, if the temperature of air inlet is low excessively, 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 gets into exhaust branch pipe through exhaust valve; Get into outlet pipe by exhaust branch pipe again, catalyst and silencing apparatus are drained in the atmosphere by tailpipe at last; 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 to come the suitably fresh cool air of heating.
In view of the above, in the utility model, also comprise another cavity metal parts 125, communicate, be close to the upper surface or the lower surface of circular box-shaped component 120 with at least one outlet pipe of engine.Because shape box-shaped component 120 is all passed through in all air inlets; So preferably, cavity metal parts 125 also is circular, and cavity metal parts 125 is hot good conductor with circular box-shaped component 120; Be metallic copper like material, metal parts shape 125 diameters are 100 millimeters.
Therefore, in the utility model, behind engine cold-start; Because the high-temp waste gas in the cavity metal parts 125 has carried out suitable preheating through thermal radiation to the cool air of being close in the circular box-shaped component 120, therefore, the engine of motor is supplied with the hot air of proper temperature; Having avoided the gasoline in the cylinder to produce condenses; Also impel gasoline fully to burn, thereby reduce the discharging of carbon monoxide, improved the motor low-temperature operability again.
Implement the engine of the utility model, have following beneficial technical effects: thus the efficient that air inlet is more even, burning has more fully improved engine.
Combine accompanying drawing that the embodiment of the utility model is described above; But the utility model is not limited to above-mentioned embodiment, and above-mentioned embodiment only is schematically, rather than restrictive; Those of ordinary skill in the art is under the enlightenment of the utility model; Not breaking away under the scope situation that the utility model aim and claim protect, also can make a lot of forms, these all belong within the protection of the utility model.
Claims (10)
1. the air inlet system on the engine; Be fixedly connected with a plurality of suction tude of engine cylinder; It is characterized in that: described air inlet system comprises circular box-shaped component and a plurality of air intake branch; Described air intake branch and suction tude are one-to-one relationship, and an end of described a plurality of air intake branches and the tangent direction of box-shaped component are joined, and the other end is connected with described suction tude.
2. the air inlet system on the engine according to claim 1 is characterized in that, said air intake branch is a heat-resistant rubber hose.
3. the air inlet system on the engine according to claim 1 is characterized in that, said air intake branch equal in length.
4. the air inlet system on the engine according to claim 1 is characterized in that, described circular box-shaped component diameter is 100 millimeters.
5. the air inlet system on the engine according to claim 1 is characterized in that, described air intake branch length is 45 millimeters.
6. the air inlet system on the engine according to claim 1 is characterized in that, also comprises another cavity metal parts, communicates with at least one outlet pipe of engine, is close to the upper surface or the lower surface of described circular box-shaped component.
7. the air inlet system on the engine according to claim 6 is characterized in that, described metal parts material is a copper.
8. the air inlet system on the engine according to claim 7 is characterized in that described metal parts is shaped as circle.
9. the air inlet system on the engine according to claim 8 is characterized in that, described metal parts diameter is 100 millimeters.
10. the air inlet system on the 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 |
|---|---|---|---|
| CN2011203699043U CN202250500U (en) | 2011-09-27 | 2011-09-27 | Air intake device on engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699043U CN202250500U (en) | 2011-09-27 | 2011-09-27 | Air intake device on engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250500U true CN202250500U (en) | 2012-05-30 |
Family
ID=46111755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203699043U Expired - Fee Related CN202250500U (en) | 2011-09-27 | 2011-09-27 | Air intake device on engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250500U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383981A (en) * | 2011-09-27 | 2012-03-21 | 上海北星实业有限公司 | Gas intake device on engine |
-
2011
- 2011-09-27 CN CN2011203699043U patent/CN202250500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383981A (en) * | 2011-09-27 | 2012-03-21 | 上海北星实业有限公司 | Gas intake device on engine |
| CN102383981B (en) * | 2011-09-27 | 2014-07-09 | 上海北星实业有限公司 | Gas intake device on engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20130927 |