CN100520039C - Fuel supply limiter for carburetor - Google Patents
Fuel supply limiter for carburetor Download PDFInfo
- Publication number
- CN100520039C CN100520039C CNB021468680A CN02146868A CN100520039C CN 100520039 C CN100520039 C CN 100520039C CN B021468680 A CNB021468680 A CN B021468680A CN 02146868 A CN02146868 A CN 02146868A CN 100520039 C CN100520039 C CN 100520039C
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- Prior art keywords
- fuel
- velocity air
- mentioned
- carburetor
- path
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 64
- 230000007246 mechanism Effects 0.000 claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 abstract description 5
- 230000004043 responsiveness Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000004888 barrier function Effects 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005347 demagnetization Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
Images
Classifications
-
- 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
- F02M3/00—Idling devices for carburettors
- F02M3/08—Other details of idling devices
- F02M3/09—Valves responsive to engine conditions, e.g. manifold vacuum
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of The Air-Fuel Ratio Of Carburetors (AREA)
Abstract
The invention provides a fuel supply regulation device of a carburetor with excellent responsiveness, with simple piping structure and without a fear of fuel leakage. The carburetor comprises: a throttle valve; a float chamber; a main system of an air-fuel-mixture supplying mechanism supplying an air-fuel-mixture to an internal combustion engine; and a slow air-fuel-mixture supply mechanism for supplying an air-fuel-mixture to the internal combustion engine by a slow air passage through a slow air jet and a slow fuel passage through a slow jet when a throttle open degree is at a small open degree including a full closing. The fuel supply regulation device of the carburetor is provided with a second slow air passage 21 communicated at upper stream side from a connecting point with the slow fuel passage 12 in the slow air passage 14, and at lower stream side from the slow air jet 14a, and with a regulating valve 23 interposed in the middle of the second slow air passage 21 in order to open/shut the passage.
Description
Technical field
The present invention relates to a kind of fuel supply restricting means of Carburetor of internal-combustion engine.
Background technique
Except having main system mixed gas feed mechanism, also have idling slow speed system mixed gas feed mechanism, during at low load operation and during no-load running comprise air throttle aperture full cut-off in interior little aperture the time, replace main system mixed gas feed mechanism mixed gas to be supplied in the Carburetor of internal-combustion engine by idling slow speed system mixed gas feed mechanism, for prevent when ignition circuit is opened or when slowing down unburned mixture be discharged to vent systems and cause the catalyzer melting loss etc. of Exhaust gas purifying device and proposed the device that a kind of fuel limitation is supplied with.
Except the example (No. 2860084 communique of Japan Patent) that in fuel passage, clamps the direct fuel limitation supply of electromagnetic opening and closing valve, also have the Japan Patent spy to open such example of putting down in writing in the clear 59-229040 communique, the example that will put down in writing in this Japanese kokai publication sho 59-229040 communique is illustrated among Fig. 7.
This Carburetor 01 has air throttle 03 and the float chamber 04 that opens and closes primary air duct 02, can set up and down with being free to slide the upstream side of air throttle 03 and primary air duct 02 between form the piston valve 06 of portion 05 in the mound, Fen, above the barrier film 07 on the top of supporting piston valve 06, be provided with piston negative pressure chamber 08.
In float chamber 04, be provided with main nozzle 09 and slow speed jet 010, this main nozzle 09 is not under level of fuel, its top is portion's 05 opening in the mound, Fen of primary air duct 02, the pilot running nozzle 010a of its underpart of this slow speed jet 010 is submerged under the level of fuel, and its top is to velocity air path 012 opening.
Insert fuel-flow control pin 09b in main nozzle 09, this fuel-flow control pin 09b is outstanding downwards from the diapire of piston valve 06.
Midway being communicated with of main nozzle 09 by the upstream side of primary air duct 011 with primary air duct 02.
In addition, forming the intercommunicating pore 06a of the portion in the mound, Fen of being communicated with 05 on the piston valve 06 with piston negative pressure chamber 08.
In the above such Carburetor 01 with main system mixed gas feed mechanism and idling slow speed system mixed gas feed mechanism, the downstream side of the air throttle 03 of float chamber 04, primary air duct 02 and piston negative pressure chamber 08 are connected on the electromagnetic switching valve 020 by the first negative pressure path 021, the second negative pressure path 022, the 3rd negative pressure path 023 respectively.
The solenoid of electromagnetic switching valve 020 is connected with power supply 027 with main switch 026 by the emergency switch that is connected in series 025 in engine ignition loop.
When emergency switch 025 and main switch 026 closure are walked usually, solenoid is by excitation, electromagnetic switching valve 020 is communicated with the first negative pressure path 021 with atmosphere, thereby float chamber 04 is become barometric pressure, and second, third negative pressure path 022,023 in addition is obstructed.
Because the opening action of air throttle 03, in the mound, Fen the suction function of portion 05 in piston negative pressure chamber 08, by with atmospheric official post piston valve 06 lifting of float chamber 04, by main system mixed gas feed mechanism mixed gas is supplied in internal-combustion engine.
Therefore, the high negative pressure that produces in the downstream side of air throttle 03 by the 3rd negative pressure path 023 guide piston negative pressure chamber 08, is led float chamber 04 by the first negative pressure path 021 from the second negative pressure path 022.
Be guided negative pressure in the float chamber 04 and be adjusted to the pressure-reduction level that is leaked the speed that metering-orifice 013 leaks by atmosphere, therefore, stop, spraying from the fuel of slow speed jet 010 and also be limited from the fuel ejection of main nozzle 09.
When opening in a loop in this wise or when slowing down significantly fuel limitation supply with, can prevent that unmixed gas is discharged to vent systems and produces the melting loss of the catalyzer of Exhaust gas purifying device.
The mode (No. 2860084 communique of Japan Patent) that clamps the direct fuel limitation supply of electromagnetic opening and closing valve in fuel passage is difficult to guarantee the sealing of fuel, and open and close valve also might produce fuel leak owing to using under wet environment.
In addition, under the situation that is example (Japanese kokai publication sho 59-229040 communique) shown in Figure 7, its pipe arrangement is many and complicated, the assembling trouble, and utilization of space is also bad.
In addition, owing to import the length and the volume of the pipe arrangement of negative pressure, the pressure oscillation of float chamber 04 has hysteresis, and the supply restriction of generation fuel and the response of removing are blunt.
In addition, the air-fuel ratio control device that also has the variable Venturi type vaporizer of putting down in writing in the special public clear 59-134359 communique of Japan Patent, it has low speed auxiliary air drain passageway and low speed control valve, opens auxiliary velocity air escape valve with the low speed control valve in low speed auxiliary air drain passageway.But this technology is still having room for improvement aspect the reduction fuel consumption raising engine performance.
Summary of the invention
The present invention makes in view of problem as described above, its objective is a kind of fuel leak problem that do not have that provides, the fuel supply restricting means of the Carburetor that pipe arrangement is simple and responsiveness is good.
In order to achieve the above object, the fuel supply restricting means of the Carburetor of the present invention's first technological scheme, its Carburetor has: the main fuel passage that open and close the air throttle of primary air duct, temporarily keep the float chamber of the fuel that is supplied to, is provided with primary air duct and main jet by the centre is supplied in mixed gas the main system mixed gas feed mechanism and the idling slow speed system mixed gas feed mechanism of internal-combustion engine; Upstream side and the downstream side with respect to above-mentioned air throttle of this idling slow speed system mixed gas feed mechanism in primary air duct has opening respectively, the velocity air path and the middle low speed fuel path that is provided with pilot running nozzle that are provided with the velocity air metering-orifice by the centre are when comprising full cut-off in interior little aperture mixed gas to be supplied to internal-combustion engine at throttle opening, it is characterized in that, have second velocity air path and the control valve, this second velocity air path is in above-mentioned velocity air path to be communicated with the downstream side of above-mentioned velocity air metering-orifice with upstream side above-mentioned low speed fuel path connectivity points, above-mentioned control valve is arranged on the above-mentioned second velocity air path midway, is used to open and close path; Be provided with the second velocity air metering-orifice in the above-mentioned second velocity air path, the above-mentioned second velocity air metering-orifice is arranged on the second velocity air path of upstream side of above-mentioned control valve; By igniting unit, according to the detected throttle opening of throttle sensor and the detected speed of a motor vehicle of vehicle speed sensor, and the clutch switch that detects the clutch of clutch is controlled solenoid valve, travel and when detected throttle opening judges that described air throttle is in full cut-off or little aperture when being judged as from the detected speed of a motor vehicle, described solenoid valve is controlled so as to be opened, simultaneously, when clutch switch was broken in the situation incision that stops from deceleration regime, described solenoid valve was controlled so as to closure.
By open and close the second low speed control access by control valve, can be under the constant situation of main system mixed gas feed mechanism former state the total cross-section area of increase and decrease velocity air path and the second velocity air path, by opening the cross-section area that control valve strengthens the air flue of idling slow speed system, can make the negative pressure that is added in the pilot running nozzle reduce the fuel supply that limits in the idling slow speed system.
Therefore can improve fuel consumption, have the internal-combustion engine of the Exhaust gas purifying device that purifies by catalyzer simultaneously, come fuel limitation to supply with, can prevent the melting loss of catalyzer etc. by opening control valve when ignition circuit is opened or when slowing down.
By the second velocity air path clamp control valve midway, under dried environment, use control valve, do not have the sealing of valve and the problem of fuel leak, can realize the reduction of cost.
Between the velocity air path and the contact low speed fuel path and velocity air metering-orifice is the simple pipe arrangement that is communicated with the second velocity air path, and the restriction of fuel supply and the responsiveness of releasing are good.
Second technological scheme record of the present invention in the fuel supply restricting means of the Carburetor that first technological scheme of the present invention is put down in writing, is characterized in that, above-mentioned second velocity air path and above-mentioned control valve are installed on the Carburetor body housing integratedly.
Because the second velocity air path and above-mentioned control valve are installed on the Carburetor body housing integratedly, around the Carburetor body, can not dispose pipe arrangement etc., pipe arrangement is simple, do not have the trouble of assembling, thereby reduced cost, and utilization of space is good.
The 3rd technological scheme of the present invention in the fuel supply restricting means of the Carburetor that first technological scheme of the present invention is put down in writing, is characterized in that, the above-mentioned second velocity air path has the second velocity air metering-orifice.
Owing in the above-mentioned second velocity air path, have the second velocity air metering-orifice, can when making lean out thin, control valve suitably set air fuel ratio opening.
Description of drawings
Fig. 1 is the sectional view of the Carburetor of one embodiment of the invention.
Fig. 2 is the partial cut away side views of the Carburetor of Fig. 1.
Above-mentioned Carburetor when Fig. 3 is closed electromagnetic valve want portion's sectional drawing.
Fig. 4 be the above-mentioned solenoid valve of solenoid valve when opening want portion's sectional drawing.
Fig. 5 is the sketch of the supply system of expression fuel and air.
Fig. 6 is the sketch of control system.
Fig. 7 is the pie graph of the Carburetor of prior art.
Embodiment
Below, with reference to Fig. 1～Fig. 6 one embodiment of the invention are described.
Fig. 1 represents the sectional drawing of the Carburetor of present embodiment, and Fig. 2 represents the profile of partial cutaway.
The Carburetor body housing 2 of Carburetor 1 mainly is made of with the cylindrical part 4 that is free to slide the chimeric piston valve 5 in ground in the direction vertical with primary air duct 3 primary air duct 3.Supporting be entrenched in the piston valve 5 in the cylindrical part 4 top barrier film 6 above be provided with piston negative pressure chamber 7, between the diapire of piston valve 5 and primary air duct 3, forming portion 8 in the mound, Fen.
Below portion 8 in the mound, Fen, form the float chamber 10 that temporarily keeps fuel by below Carburetor body housing 2, float tank 9 being installed, in float chamber 10, be provided with main nozzle 11 and slow speed jet 12, the main jet perforation 11a of these main nozzle 11 its underparts is not under level of fuel, its top is to portion's 8 openings in the mound, Fen, the low-speed jet hole 12a of these slow speed jet 12 its underparts is not under level of fuel, and its top is to velocity air path 14 openings.
Insert in main nozzle 11 from the outstanding downwards fuel-flow control pin 11b of the diapire of piston valve 5, the primary air duct 13 (with reference to Fig. 5) that is communicated with the upstream side of primary air duct 3 by primary air metering-orifice 13a (with reference to Fig. 5) is connected the (not shown) midway of main nozzle 11.
In float chamber 10, be provided with the float-controlled valve 17 that imports fuel.
The downstream side of portion 8 sets air throttle 18 in the mound, Fen of primary air duct 3.
The ratio slow speed jet 12 of above-mentioned velocity air path 14 more the downstream side the end with near the sealing of air throttle 18, be communicated with to the other hole 15 of primary air duct 3 openings with at the idle hole 16 of downstream side opening more.
The more upstream side of the ratio slow speed jet 12 of velocity air path 14 with as illustrated in fig. 2 with Carburetor body housing sidewall bore a hole upward and the below spatial communication of the barrier film 6 that is communicated with the upstream side of primary air duct 3 by velocity air metering-orifice 14a.
Under above such Carburetor basic comprising, this Carburetor 1 forms the second following velocity air path 21.
The second velocity air path 21 passes downwards by the second velocity air metering-orifice 21a abreast with the upstream side that velocity air metering-orifice 14a from above-mentioned velocity air path 14 extends downwards, and 21b is communicated with the valve input hole.
This valve input hole 21b is formed on the sidewall of Carburetor body housing 2 with the second velocity air path 21, in the opening upper edge of foreign side, valve seat 21c is being set at valve input hole 21b week, forming recess 21d in its around openings, the valve gap member of being set up from the outside 22 covers, and recess 21d constitutes the valve delivery outlet.
This valve delivery outlet is communicated with above-mentioned air flue 14.
Central authorities at this valve gap member 22 are installed with solenoid valve 23.The front end towards the outstanding bar 23a of valve input hole 21b at solenoid valve 23 is being fixed valve body 23b, because the moving of bar 23a, and the opening that valve body 23b can open and close valve inlet opening 21b.
As shown in Figure 4, when opening the valve of solenoid valve 23 by excitation, the second velocity air path 21 is communicated with velocity air path 14 by valve input hole 21b and valve delivery outlet (recess 21d).
When closing the valve of solenoid valve 23 by demagnetization, as shown in Figure 3, the second velocity air path 21 is closed.
Fig. 5 represents the flowing of supply system of above fuel and air with sketch.
Constitute main system mixed gas feed mechanism and idling slow speed system mixed gas feed mechanism, this main system mixed gas feed mechanism has makes primary air metering-orifice 13a supply fuel to portion 8 in the mound, Fen between the primary air duct 13 of centre and by main jet nozzle 11a from main nozzle 11, is provided with the primary air duct 14 of velocity air metering-orifice 14a in the middle of this idling slow speed system mixed gas feed mechanism has and supplies fuel to other hole 12, idle hole 16 by low-speed jet mouth 12a from slow speed jet 12.
And, the upstream side of in primary air duct 14 and tie point slow speed jet 12, the second velocity air path 21 is communicated with the downstream side of the velocity air metering-orifice 14a of primary air duct 14.
The second velocity air metering-orifice 21a and solenoid valve 23 are being set in the second velocity air path 21.
Because the switching of the valve of solenoid valve 23, can change the total cross-section area of the velocity air path 14 and the second velocity air path 21, can suitably limit fuel feed from idling slow speed system mixed gas feed mechanism.
Main system mixed gas feed mechanism is not had because the influence that the switching of the second velocity air path 21 brings can not supplied with by fuel limitation.
Below, the sketch of control system is illustrated among Fig. 6 describes simply.
Above-mentioned solenoid valve 23 is by igniting unit 30 controls, on igniting unit 30, from power supply input is arranged by the ignition switch 31 that is connected in series and emergency switch 32, one end of the coil of solenoid valve 23 is connected with the electric wire of 32 of ignition switch 31 and emergency switches, and the other end is connected with the terminal of igniting unit 30.
The downstream side terminal of emergency switch 32 is being connected with the terminal of igniting unit 30 by spark coil arranged side by side 33,34.
In addition, the downstream side terminal of emergency switch 32 passes through starter switch 35, starter motor magnetic coil 36, is connected with a terminal of igniting unit 30 by diode 37, and be connected with an end of igniting unit 30 by clutch switch 38, clutch switch 38 is connected with the uplifted side terminal of side switch starter 39.
The electric wire that ignition switch 31 and emergency switch are 32 is grounded by neutral indicator 40, diode 41, neutral position switch 42.
And, in igniting unit 30,,, import speed of a motor vehicle testing signals from vehicle speed sensor 45 from the testing signal of impulse generator 44 input crankangles and engine speed from the testing signal of throttle sensor 43 input throttle openings.
In above such control system, solenoid valve 23 is by igniting unit 30 controls.
Igniting unit 30 is according to cutting off control electromagnetic valve 23 by throttle sensor 43 detected throttle openings by the connection of the vehicle speed sensor 45 detected speed of a motor vehicle and clutch switch 38.
Be judged as and travelling and be judged as air throttle when being full cut-off or little aperture from detecting throttle opening from detecting the speed of a motor vehicle, solenoid valve 23 is controlled so as to be opened.
That is, decontrol gas pedal and apply engine braking in walking when slowing down, solenoid valve 23 is opened.
When engine braking moves, air throttle 18 is closed, be coupled with big negative pressure in the downstream side of air throttle 18, have from the tendency of the fuel more than idle hole 16 sucking-off necessity of velocity air path 14, but open the second velocity air path 21 by opening solenoid valve 23, can reduce the negative pressure that is added on the slow speed jet 12, suppress the absorption of fuel, improve rate of fuel consumption.
Therefore, be enhanced and in outlet pipe, have in the internal-combustion engine that carries out the Exhaust gas purifying device that exhaust opens only by catalyzer, supply with the melting loss that can prevent catalyzer etc. by opening the control valve fuel limitation in fuel consumption.
When the engine braking action reaches long-time, sometimes the temperature of catalyzer became low and situation that the purification ratio when quickening is reduced, but making it spray fuel micro-ly, the driving by control electromagnetic valve 23 with the temperature maintenance of catalyzer to a certain degree, can prevent the reduction of the purification ratio when quickening.
Under the such situation that stops from deceleration regime, when the cut-out clutch cut off clutch switch 38, solenoid valve 23 is controlled so as to closed, and removes fuel limit, prevents the generation of autostop.
Because the second velocity air path 21 and solenoid valve 23 are installed on the Carburetor body housing 2 integratedly, pipe arrangement etc. can not be configured in the Carburetor body around, pipe arrangement is simple, not have the trouble of assembling, and cost is low, utilization of space is good.
In addition, pipe arrangement is short, so the responsiveness of the restriction of the fuel supply of the driven for opening and closing of solenoid valve 23 generation and releasing is good.
Carry out the switching of the second velocity air path 21 by solenoid valve 23, but also can be by when slowing down, carrying out the switching of valve by the barrier film of the negative pressure effect that produces in the inlet opening.
Claims (2)
1. the fuel supply restricting means of a Carburetor, its Carburetor has: the main fuel passage that open and close the air throttle of primary air duct, temporarily keep the float chamber of the fuel that is supplied to, is provided with primary air duct and main jet by the centre is supplied in mixed gas the main system mixed gas feed mechanism and the idling slow speed system mixed gas feed mechanism of internal-combustion engine; Upstream side and the downstream side with respect to above-mentioned air throttle of this idling slow speed system mixed gas feed mechanism in primary air duct has opening respectively, the velocity air path and the middle low speed fuel path that is provided with pilot running nozzle that are provided with the velocity air metering-orifice by the centre are when comprising full cut-off in interior little aperture mixed gas to be supplied to internal-combustion engine at throttle opening, it is characterized in that
Have second velocity air path and the control valve, this second velocity air path is in above-mentioned velocity air path to be communicated with the downstream side of above-mentioned velocity air metering-orifice with upstream side above-mentioned low speed fuel path connectivity points, above-mentioned control valve is arranged on the above-mentioned second velocity air path midway, is used to open and close path; Be provided with the second velocity air metering-orifice in the above-mentioned second velocity air path, the above-mentioned second velocity air metering-orifice is arranged on the second velocity air path of upstream side of above-mentioned control valve;
By igniting unit, according to the detected throttle opening of throttle sensor and the detected speed of a motor vehicle of vehicle speed sensor, and the clutch switch that detects the clutch of clutch is controlled solenoid valve, travel and when detected throttle opening judges that described air throttle is in full cut-off or little aperture when being judged as from the detected speed of a motor vehicle, described solenoid valve is controlled so as to be opened, simultaneously, when clutch switch was broken in the situation incision that stops from deceleration regime, described solenoid valve was controlled so as to closure.
2. the fuel supply restricting means of Carburetor according to claim 1 is characterized in that, above-mentioned second velocity air path and above-mentioned control valve are installed on the Carburetor body housing integratedly.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP322415/2001 | 2001-10-19 | ||
| JP2001322415A JP3794474B2 (en) | 2001-10-19 | 2001-10-19 | Carburetor fuel supply regulation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1427146A CN1427146A (en) | 2003-07-02 |
| CN100520039C true CN100520039C (en) | 2009-07-29 |
Family
ID=19139469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021468680A Expired - Fee Related CN100520039C (en) | 2001-10-19 | 2002-10-16 | Fuel supply limiter for carburetor |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP3794474B2 (en) |
| CN (1) | CN100520039C (en) |
| DE (1) | DE10248210B4 (en) |
| ES (1) | ES2234369B1 (en) |
| IT (1) | ITTO20020900A1 (en) |
| TW (1) | TW565654B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678389A (en) * | 2012-03-23 | 2012-09-19 | 上海坤孚企业(集团)有限公司 | Separate control type carburetor for motorcycle engine |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS538431A (en) * | 1976-07-12 | 1978-01-25 | Hitachi Ltd | Air-to-fuel ratio control means for engine |
| FR2448638B1 (en) * | 1979-02-09 | 1985-09-27 | Sibe | IMPROVEMENTS ON CARBURETORS FOR INTERNAL COMBUSTION ENGINES |
| FR2452002A1 (en) * | 1979-03-22 | 1980-10-17 | Sibe | IMPROVEMENTS IN CARBURETOR DEVICES FOR INTERNAL COMBUSTION ENGINES |
| JPS5696138A (en) * | 1979-12-28 | 1981-08-04 | Hitachi Ltd | Air/fuel ratio controller |
| US4442818A (en) * | 1980-12-29 | 1984-04-17 | Hitachi, Ltd. | Fuel injection apparatus for internal combustion engines |
| JPS59134359A (en) * | 1983-01-21 | 1984-08-02 | Hitachi Ltd | Air-fuel ratio controller for variable venturi carburetor |
| JPS59229040A (en) * | 1983-06-09 | 1984-12-22 | Honda Motor Co Ltd | Fuel feed stop device for internal-combustion engine |
| JPS60237150A (en) * | 1984-05-11 | 1985-11-26 | Mikuni Kogyo Co Ltd | Carburetor slow system controller |
| JP2860084B2 (en) * | 1996-08-29 | 1999-02-24 | 川崎重工業株式会社 | Fuel limiting device for internal combustion engine |
-
2001
- 2001-10-19 JP JP2001322415A patent/JP3794474B2/en not_active Expired - Fee Related
-
2002
- 2002-10-15 TW TW091123710A patent/TW565654B/en not_active IP Right Cessation
- 2002-10-16 CN CNB021468680A patent/CN100520039C/en not_active Expired - Fee Related
- 2002-10-16 IT IT000900A patent/ITTO20020900A1/en unknown
- 2002-10-16 DE DE10248210A patent/DE10248210B4/en not_active Expired - Fee Related
- 2002-10-16 ES ES200202374A patent/ES2234369B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| TW565654B (en) | 2003-12-11 |
| ES2234369A1 (en) | 2005-06-16 |
| JP3794474B2 (en) | 2006-07-05 |
| CN1427146A (en) | 2003-07-02 |
| ES2234369B1 (en) | 2006-07-01 |
| ITTO20020900A1 (en) | 2003-04-20 |
| JP2003120423A (en) | 2003-04-23 |
| DE10248210B4 (en) | 2009-01-08 |
| DE10248210A1 (en) | 2003-06-12 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20101016 |