CN201306226Y - Manually regulated gas-replenishing unit for engine - Google Patents
Manually regulated gas-replenishing unit for engine Download PDFInfo
- Publication number
- CN201306226Y CN201306226Y CNU2008201004419U CN200820100441U CN201306226Y CN 201306226 Y CN201306226 Y CN 201306226Y CN U2008201004419 U CNU2008201004419 U CN U2008201004419U CN 200820100441 U CN200820100441 U CN 200820100441U CN 201306226 Y CN201306226 Y CN 201306226Y
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- valve
- spool
- air device
- gas
- manual tune
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Abstract
The utility model discloses a manually regulated gas-replenishing unit for an engine, which comprises a gas-replenishing tube, an one-way valve and a filter; wherein, the gas-replenishing tube is connected with the mixed gas inlet of an engine body; the one-way valve and the filter are arranged on the gas-replenishing tube; and an regulating valve is also arranged on the gas-replenishing tube and acts synchronously along with the plunger piston of a carburetor. Since the utility model adopts the regulating valve acting synchronously along with the plunger piston of the carburetor, the quantity of replenished gas can be regulated according to the operating requirement of the engine, so that the engine can be in an optimal operation state. The utility model has the advantages of simple structure, convenient mounting and low cost. Because a needle-shaped valve core structure is adopted, the quantity of replenished gas can be linearly increased according to the opening travel, the gas-replenishing curve can be controlled to adapt to the admission curve of mixed gas, so that the two curves can be matched well, and thereby, the engine can be kept in the optimal operation state.
Description
Technical field
The utility model relates to a kind of explosive motor, particularly a kind of motor manual tune making-up air device.
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, motor makes the spring sheet of valve realize Push And Release under positive negative pressure alternate by inhaling with not air-breathing two states, still, and when motor just starts, its rotating speed (air-breathing frequency) is 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 making-up air device of motor.
The model utility content
In view of this, the purpose of this utility model provides a kind of motor manual tune making-up air device, can regulate air compensation, thereby make motor can be in optimal operational condition according to the service condition of motor.
Motor manual tune making-up air device of the present utility model, comprise 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 Carburetor plunger synchronization motion of described modulating valve and engine body 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 beneficial effects of the utility model are: motor manual tune making-up air device of the present utility model, 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 utility model 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 utility model is further described.
Fig. 1 is a structural representation of the present utility model;
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 utility model, Fig. 2 is the modulating valve structural representation, Fig. 3 is a modulating valve opening process schematic representation, as shown in the figure: the motor manual tune making-up air device of present embodiment is the motorcycle gasoline engine making-up air device, comprise the blowdown pipe 2 that is connected engine body 1 combi inlet port and the filter 7, one-way valve I8, three-way pipe 9, one-way valve II10 and the canister 4 that are successively set on the blowdown pipe 2, guarantee to mend the air cleaning of going into and do not flow backwards; On the pipeline between engine oil tank and the three-way pipe 9 toppling valve 12 is set, canister 45 is used for the desorption and the absorption of fuel-steam; On Carburetor 3 in-lines oil strainer 11 is set; Modulating valve 5 also is set on the blowdown pipe 2, and the plunger synchronization motion of modulating valve 5 and Carburetor 3 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 2 and engine body 1 combi inlet port joint, just is installed in after the canister 4, 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 3 adapt, reach the two good fit purpose, 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 3 is provided with respectively two branch ends that are connected with aciculiform spool 53 afterbodys with Carburetor 3 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 3 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 3, 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 3 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 utility model purpose;
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 2 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 the explanation the technical solution of the utility model, although the utility model 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 the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (10)
1. motor manual tune making-up air device, comprise the blowdown pipe (2) that is connected engine body (1) combi inlet port and be arranged on one-way valve and filter on the blowdown pipe (2), it is characterized in that: modulating valve (5) also is set, Carburetor (3) the plunger synchronization motion of described modulating valve (5) and engine body (1) on the described blowdown pipe (2).
2. motor manual tune making-up air device 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. motor manual tune making-up air device 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. motor manual tune making-up air device 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 (3) is provided with respectively two branch ends that are connected with slide block (54) or aciculiform spool (53) afterbody with Carburetor (3) plunger, two branch end synchronization motions of described throttle drag-line (6) control.
5. motor manual tune making-up air device according to claim 4 is characterized in that: the suction port (52b) of described cylindrical gas passage (52a) is corresponding with aciculiform spool (53) end.
6. motor manual tune making-up air device 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. motor manual tune making-up air device according to claim 6 is characterized in that: described modulating valve (5) is arranged at the near-end of blowdown pipe (2) and engine body (1) combi inlet port joint.
8. motor manual tune making-up air device according to claim 7 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. motor manual tune making-up air device 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 described motor manual tune of the arbitrary claim of claim 1 to 9 making-up air device, 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 |
|---|---|---|---|
| CNU2008201004419U CN201306226Y (en) | 2008-10-31 | 2008-10-31 | Manually regulated gas-replenishing unit for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201004419U CN201306226Y (en) | 2008-10-31 | 2008-10-31 | Manually regulated gas-replenishing unit for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201306226Y true CN201306226Y (en) | 2009-09-09 |
Family
ID=41098692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201004419U Expired - Fee Related CN201306226Y (en) | 2008-10-31 | 2008-10-31 | Manually regulated gas-replenishing unit for engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201306226Y (en) |
-
2008
- 2008-10-31 CN CNU2008201004419U patent/CN201306226Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LONCIN GENERAL DYNAMICS CO., LTD. Free format text: FORMER NAME: LONCIN INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee after: Loncin General Dynamics Co., Ltd. Address before: 99 No. 400052 Chongqing Jiulongpo Hualong Avenue Kowloon Park Patentee before: Loncin Industry Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20121031 |