CN101397952A - Adjustable air-compensating engine - Google Patents
Adjustable air-compensating engine Download PDFInfo
- Publication number
- CN101397952A CN101397952A CNA2008102329785A CN200810232978A CN101397952A CN 101397952 A CN101397952 A CN 101397952A CN A2008102329785 A CNA2008102329785 A CN A2008102329785A CN 200810232978 A CN200810232978 A CN 200810232978A CN 101397952 A CN101397952 A CN 101397952A
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- valve
- motor
- air
- air compensating
- spool
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- 230000033001 locomotion Effects 0.000 claims description 8
- 210000002445 nipple Anatomy 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000013589 supplement Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 36
- 239000000446 fuel Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000002828 fuel tank Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000009975 flexible effect Effects 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention discloses an adjustable air-supplementing engine, which comprises an engine body, an oil-way system, an air inlet system and an air-supplementing system, wherein the oil-way system and the air inlet system send mixed gas into the engine body through a carburetor, the air-supplementing system comprises an air-supplementing pipe connected with a mixed gas inlet of the engine body, a one-way valve and a filter, the one-way valve and the filter are arranged on the air-supplementing pipe, and the air-supplementing pipe is also provided with an adjusting valve which synchronously acts with a plunger of the carburetor; by adopting the long conical needle-shaped valve core structure, the air supplement amount can be linearly increased according to the opening stroke, and the controlled air supplement curve is matched with the mixed air inlet curve, so that the aim of good matching of the air supplement amount and the mixed air inlet curve is fulfilled, and the engine can keep the optimal operation.
Description
Technical field
The present invention relates to a kind of explosive motor, particularly a kind of motor of adjustable air compensating.
Background technique
Motorcycle engine is owing to be high-speed gasoline engine, and the fuel-air mixture forming process time is short, because incorporation time is short, can cause mixing inhomogeneous, so fuel combustion is insufficient, can CO and HC gas occur in tail gas, causes environmental pollution.For overcoming the above problems, motor is provided with air compensating system.In the prior art, making-up air device divides two kinds of electric controlled gas-compensation and mechanical tonifying Qi, and electrically controlled gas supplementing device comprises ECU (Electrical Control Unit) ECU and electric controlled gas-compensation valve, and is effective, controls emission compliance easily; But have the high shortcoming of cost, generally do not using also employing under the EFI situation.The principle of machinery making-up air device is the automatic tonifying Qi of mechanical type, and motor is realized Push And Release by inhaling with the spring sheet of not air-breathing two states control valve under positive negative pressure alternate.But when motor just started, its rotating speed (air-breathing frequency) was very low, and valve still is in normal working; After the rotating speed (air-breathing frequency) of motor increased a certain data of arrival, spring sheet was difficult to realize opening valve with the motor synchronizing frequency; Because the time is very short, spring sheet has little time to open and just has been in the malleation closed condition again, therefore often is in closed condition, still in tonifying Qi, does not but close not tonifying Qi when needing tonifying Qi at a high speed, thereby has influenced the discharging that motor must be controlled when low speed does not need tonifying Qi.
In addition, existing fuel engine must evaporate activated carbon canister by oil, is purpose to limit dirty the reduction of discharging.After engine start, the fuel evaporation activated carbon canister is under the negative pressure opens working state, and high speed and low speed is desorption and adsorbed state all.And after the fuel oil of absorption is finished by desorption, can think that this passage is in long-term tonifying Qi state, and be equivalent to carry out secondary air compensating, do not need tonifying Qi when having idling, but still in tonifying Qi; Thereby influenced the discharging that motor must be controlled.
Therefore, need transform, can regulate air compensation, thereby make motor can be in optimal operational condition according to the service condition of motor to the air compensating system of motor.
Summary of the invention
In view of this, the purpose of this invention is to provide a kind of motor of adjustable air compensating, can regulate air compensation, thereby make motor can be in optimal operational condition according to the service condition of motor.
The motor of adjustable air compensating of the present invention, comprise engine body, oil-way system, gas handling system and air compensating system, oil-way system and gas handling system are sent mixed gas into engine body by Carburetor, described air compensating system comprises the blowdown pipe that is connected the engine body combi inlet port and the one-way valve and the filter that are arranged on the blowdown pipe, modulating valve also is set, the plunger synchronization motion of described modulating valve and Carburetor on the described blowdown pipe.
Further, described modulating valve comprises valve body, spool and valve seat, and described spool is the aciculiform spool of conico-acuminate structure, and valve seat is provided with the cylindrical gas passage, and the aciculiform spool is can axially movable mode penetrating the cylindrical gas passage;
Further, the long conical bottom of aciculiform spool and cylindrical gas passage do not have the gap and can move axially and cooperate, and when closing, long conical bottom is between the suction port and air outlet of cylindrical gas passage;
Further, described modulating valve also comprises return spring and the slide block that is arranged in the valve cavity, described slide block is fixedlyed connected with aciculiform spool afterbody and can be vertically moved along valve cavity, described return spring one end withstands the valve cavity end, the other end withstands slide block, the throttle drag-line of Carburetor is provided with respectively two branch ends that are connected with slide block or aciculiform spool afterbody with the Carburetor plunger, two branch end synchronization motions of described throttle drag-line control;
Further, the suction port of described cylindrical gas passage is corresponding with aciculiform spool end;
Further, described valve seat and valve body are made one, and the air inlet pipe nipple that is connected with the suction port and the air outlet of cylindrical gas passage respectively and the pipe nipple of giving vent to anger are set on the valve body;
Further, described modulating valve is arranged at the near-end of blowdown pipe and engine body combi inlet port joint;
Further, the valve body outer installment of described modulating valve is ear fixedly, and described modulating valve is installed on the vehicle frame by fixing ear;
Further, the afterbody of described aciculiform spool is the cylindrical body with the long conical bottom one of aciculiform spool, the equal diameters of cylindrical diameter and long conical bottom.
The invention has the beneficial effects as follows: the motor of adjustable air compensating of the present invention, adopt modulating valve with Carburetor plunger synchronization motion, therefore can be according to the service condition of motor, regulate air compensation, thereby make motor can be in optimal operational condition, the present invention is simple in structure, and is easy for installation, and cost is low; Adopt the needle value cored structure of conico-acuminate, can be according to the linear air compensation that increases of opening travel, the tonifying Qi curve of control and mixed gas air inlet curve adapt, and reach the two good fit purpose, make motor keep optimum operation.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the modulating valve structural representation;
Fig. 3 is a modulating valve opening process schematic representation.
Embodiment
Fig. 1 is a structural representation of the present invention, Fig. 2 is the modulating valve structural representation, Fig. 3 is a modulating valve opening process schematic representation, and as shown in the figure: the motor of the adjustable air compensating of present embodiment is a motor gasoline engine, comprises engine body 1, oil-way system 2, gas handling system 3 and air compensating system 4; Oil-way system 2 and gas handling system 3 are sent mixed gas into engine body 1 by Carburetor 7; Air compensating system 4 comprises the blowdown pipe 41 that is connected engine body 1 combi inlet port and the filter 42, one-way valve I43, three-way pipe 44, one-way valve II46 and the canister 45 that are successively set on the blowdown pipe 41, guarantees to mend the air cleaning of going into and do not flow backwards; On the pipeline between the fuel tank of oil-way system 2 and the three-way pipe 44 toppling valve 21 is set, canister 45 is used for the desorption and the absorption of fuel-steam; Fuel oil in the fuel tank of oil-way system 2 enters Carburetor 7 by transport pipe through oil strainer 22; Modulating valve 5 also is set on the blowdown pipe 41, and the plunger synchronization motion of modulating valve 5 and Carburetor 7 by regulating the state of modulating valve 5, can make the unlatching of modulating valve 5 lag behind the unlatching of Carburetor 7, also can open synchronously, uses simple and convenient; Modulating valve 5 is arranged at the near-end of blowdown pipe 41 and engine body 1 combi inlet port joint, just is installed in after the canister 45, and modulating valve 5 is nearer apart from engine body 1 combi inlet port, regulates air compensation and is quick on the draw instant effect for mixed gas;
In the present embodiment, modulating valve 5 comprises valve body 51, spool 53 and valve seat 52, and valve body 51 outer installment of modulating valve 5 are ear 56 fixedly, and modulating valve 5 is installed on the vehicle frame by fixing ear 56, installs simple and conveniently, improves the high working efficiency of installing; Spool 53 is the aciculiform spool of conico-acuminate structure, valve seat 52 is provided with cylindrical gas passage 52a, aciculiform spool 53 is can axially movable mode penetrating cylindrical gas passage 52a, adopt aciculiform spool 53 structures of conico-acuminate, increasing along with opening travel, gap between aciculiform spool 53 cone-shaped sections and the cylindrical gas passage 52a becomes big gradually, air compensation also increases gradually, be beneficial to according to the engine mixed gas air inflow and regulate air compensation, because the tonifying Qi curve of aciculiform spool 53 controls of conico-acuminate and the mixed gas air inlet curve of Carburetor 7 adapt, reach good fit purpose synchronously, guarantee that tail gas is qualified when making motor keep optimum operation;
The long conical bottom of aciculiform spool 53 and cylindrical gas passage 52a do not have the gap and can move axially and cooperate, when closing, long conical bottom is between the suction port 52b and air outlet 52c of cylindrical gas passage 52a, no gap cooperates can guarantee excellent sealing between suction port 52b and the air outlet 52c, air enters engine body when avoiding closing, and influences the operation of motor;
Modulating valve 5 also comprises return spring 55 and the slide block 54 that is arranged in the valve cavity 51c, slide block 54 is fixedlyed connected with aciculiform spool 53 afterbodys and can be vertically moved along valve cavity 51c, in the present embodiment, the afterbody of aciculiform spool 53 is and the cylindrical body of growing the conical bottom one, the diameter of cylindrical structure equates with the oval cone bottom diameter of aciculiform spool 53, slide block 54 is set, can guarantee the radial position of aciculiform spool 53, thereby guarantee the coaxality of aciculiform spool 53 and cylindrical gas passage 52a, make between aciculiform spool 53 and the cylindrical gas passage 52a to seal reliably, move smooth and easy; The afterbody of aciculiform spool 53 is and the isometrical cylindrical body of the long conical bottom of aciculiform spool 53 to be beneficial to the coaxality that guarantees aciculiform spool 53 and cylindrical gas passage 52a; Return spring 55 1 ends withstand valve cavity 51c end, the other end withstands slide block 54, the throttle drag-line 6 of Carburetor 7 is provided with respectively two branch ends that are connected with aciculiform spool 53 afterbodys with Carburetor 7 plungers, two branch ends are respectively branch end 61 and divide end 62, divide end 61 to connect aciculiform spool 53 afterbodys, divide end 62 to connect Carburetor 7 plungers, throttle drag-line two branch ends 61 of 6 controls and 62 synchronization motions, to guarantee the plunger synchronization motion of modulating valve 5 and Carburetor 7, when aciculiform spool 53 is in the state that makes the modulating valve unlatching, aciculiform spool 53 cone-shaped sections are radially relative with air outlet 52c, see Fig. 3, air and enter by suction port 52b and enter air outlet 52c by the gap between aciculiform spool 53 cone-shaped sections and the cylindrical gas passage 52a from the mixed gas of the fuel-steam of fuel tank, under the effect of engine body 1 combi inlet port negative pressure, mix with mixed gas, under the effect of mending air, mixed gas further mixes, and increase oxygen content, the assurance fuel combustion is abundant, increasing along with opening travel, gap between aciculiform spool 53 cone-shaped sections and the cylindrical gas passage 52a becomes big gradually, air compensation also increases gradually, guarantees to adapt with the tolerance of mixed gas; When loosening throttle drag-line 6, the air-fuel mixture amount that Carburetor 7 enters engine body 1 reduces, and return spring 55 acts on slide block 54, makes aciculiform spool 53 returns, get back between suction port 52b and the air outlet 52c until the conical lower portion of aciculiform spool 53, modulating valve 5 cuts out; Valve cavity 51c end is provided with through hole 51d, and the branch end 61 of throttle drag-line 6 passes through hole 51d and is connected with aciculiform spool 53 afterbodys, does not have eccentric force during the application of force, is beneficial to the flexible action that guarantees aciculiform spool 53; Certainly, dividing end 61 to be not limited to be connected with aciculiform spool 53 afterbodys, also can be to be connected on the slide block 54, because aciculiform spool 53 is fixedlyed connected with slide block 54, also can realize the object of the invention;
The suction port 52b of cylindrical gas passage 52a is corresponding with aciculiform spool 53 ends, to reduce intake resistance;
In the present embodiment, valve seat 52 is made one with valve body 51, make modulating valve simple and compact for structure, the air inlet pipe nipple 51a that is connected with suction port 52b and the air outlet 52c of cylindrical gas passage 52a respectively and the pipe nipple 51b that gives vent to anger are set on the valve body 51, the convenient blowdown pipe 41 that connects, make the installation of modulating valve 5 simple and convenient, improve the high working efficiency of installing.
Explanation is at last, above embodiment is only unrestricted in order to technological scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technological scheme of the present invention, and not breaking away from the aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the motor of an adjustable air compensating, comprise engine body (1), oil-way system (2), gas handling system (3) and air compensating system (4), oil-way system (2) and gas handling system (3) are sent mixed gas into engine body (1) by Carburetor (7), described air compensating system (4) comprises the blowdown pipe (41) that is connected engine body (1) combi inlet port and is arranged on one-way valve and filter on the blowdown pipe (41), it is characterized in that: modulating valve (5) also is set, the plunger synchronization motion of described modulating valve (5) and Carburetor (7) on the described blowdown pipe (41).
2. the motor of adjustable air compensating according to claim 1, it is characterized in that: described modulating valve (5) comprises valve body (51), spool (53) and valve seat (52), described spool (53) is the aciculiform spool of conico-acuminate structure, valve seat (52) is provided with cylindrical gas passage (52a), and aciculiform spool (53) is can axially movable mode penetrating cylindrical gas passage (52a).
3. the motor of adjustable air compensating according to claim 2, it is characterized in that: the long conical bottom of aciculiform spool (53) can move axially with the no gap of cylindrical gas passage (52a) and cooperate, when closing, long conical bottom is positioned between the suction port (52b) and air outlet (52c) of cylindrical gas passage (52a).
4. the motor of adjustable air compensating according to claim 3, it is characterized in that: described modulating valve (5) also comprises return spring (55) and the slide block (54) that is arranged in the valve cavity (51c), described slide block (54) is fixedlyed connected with aciculiform spool (53) afterbody and can be vertically moved along valve cavity (51c), described return spring (55) one ends withstand valve cavity (51c) end, the other end withstands slide block (54), the throttle drag-line (6) of Carburetor (7) is provided with respectively two branch ends that are connected with slide block (54) or aciculiform spool (53) afterbody with Carburetor (7) plunger, two branch end synchronization motions of described throttle drag-line (6) control.
5. the motor of adjustable air compensating according to claim 4, it is characterized in that: the suction port (52b) of described cylindrical gas passage (52a) is corresponding with aciculiform spool (53) end.
6. the motor of adjustable air compensating according to claim 5, it is characterized in that: described valve seat (52) is made one with valve body (51), and the air inlet pipe nipple (51a) and the pipe nipple of giving vent to anger (51b) that are connected with suction port (52b) and air outlet (52c) of cylindrical gas passage (52a) respectively are set on the valve body (51).
7. the motor of adjustable air compensating according to claim 6 is characterized in that: described modulating valve (5) is arranged at the near-end of blowdown pipe (41) and engine body (1) combi inlet port joint.
8. the motor of adjustable air compensating according to claim 7, it is characterized in that: valve body (51) outer installment of described modulating valve (5) is ear (56) fixedly, and described modulating valve (5) is installed on the vehicle frame by fixing ear (56).
9. the motor of adjustable air compensating according to claim 8, it is characterized in that: described valve cavity (51c) end is provided with through hole (51d), and a branch end of throttle drag-line (6) passes through hole (51d) and is connected with slide block (54) or aciculiform spool (53) afterbody.
10. according to the motor of the described adjustable air compensating of the arbitrary claim of claim 2 to 9, it is characterized in that: the afterbody of described aciculiform spool (53) for the cylindrical body of the long conical bottom one of aciculiform spool (53), cylindrical diameter and the equal diameters of growing conical bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102329785A CN101397952A (en) | 2008-10-31 | 2008-10-31 | Adjustable air-compensating engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102329785A CN101397952A (en) | 2008-10-31 | 2008-10-31 | Adjustable air-compensating engine |
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| Publication Number | Publication Date |
|---|---|
| CN101397952A true CN101397952A (en) | 2009-04-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008102329785A Pending CN101397952A (en) | 2008-10-31 | 2008-10-31 | Adjustable air-compensating engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562366A (en) * | 2012-01-13 | 2012-07-11 | 叶泽延 | Environmental-friendly fuel economizer for internal combustion engine |
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2008
- 2008-10-31 CN CNA2008102329785A patent/CN101397952A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562366A (en) * | 2012-01-13 | 2012-07-11 | 叶泽延 | Environmental-friendly fuel economizer for internal combustion engine |
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Open date: 20090401 |