CN1162694A - Sparking two stroke IC engine with pre-compression in crank chamber - Google Patents
Sparking two stroke IC engine with pre-compression in crank chamber Download PDFInfo
- Publication number
- CN1162694A CN1162694A CN 97102487 CN97102487A CN1162694A CN 1162694 A CN1162694 A CN 1162694A CN 97102487 CN97102487 CN 97102487 CN 97102487 A CN97102487 A CN 97102487A CN 1162694 A CN1162694 A CN 1162694A
- Authority
- CN
- China
- Prior art keywords
- mixed gas
- mentioned
- crank chamber
- air
- dense mixed
- 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.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B17/00—Engines characterised by means for effecting stratification of charge in cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/14—Engines characterised by using fresh charge for scavenging cylinders using reverse-flow scavenging, e.g. with both outlet and inlet ports arranged near bottom of piston stroke
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/20—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18
- F02B25/22—Means for reducing the mixing of charge and combustion residues or for preventing escape of fresh charge through outlet ports not provided for in, or of interest apart from, subgroups F02B25/02 - F02B25/18 by forming air cushion between charge and combustion residues
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B33/00—Engines characterised by provision of pumps for charging or scavenging
- F02B33/02—Engines with reciprocating-piston pumps; Engines with crankcase pumps
- F02B33/04—Engines with reciprocating-piston pumps; Engines with crankcase pumps with simple crankcase pumps, i.e. with the rear face of a non-stepped working piston acting as sole pumping member in co-operation with the crankcase
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B61/00—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing
- F02B61/02—Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing for driving cycles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
- F02F3/16—Pistons having cooling means
- F02F3/20—Pistons having cooling means the means being a fluid flowing through or along piston
- F02F3/22—Pistons having cooling means the means being a fluid flowing through or along piston the fluid being liquid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/005—Other engines having horizontal cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
- Supercharger (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a two-stroke internal combustion engine wherein the rich air-fuel mixture and the lean air-fuel mixture are respectively supplied to a combustion chamber through a separate scavenge air passage in the layered condition and the rich air-fuel mixture is ignited with an ignition plug, thereby, to prevent the irregular combustion at the time of low-load operation, and while to improve the fuel utilization, and to purify the exhaust gas. In said two-stroke internal combustion engine, a rich air-fuel mixture intake passage is arranged at a position, in which an extension line of a rich air-fuel mixture intake passage contacts with a rotation focus of a large end of a connecting rod and while the rich air-fuel mixture flow flowed from the rich air-fuel mixture intake passage into a crank chamber coincides with the rotating direction of the large end of the connecting rod, and a rich air-fuel mixture scavenge air passage is formed on the extension line of the rich air-fuel mixture passage.
Description
The present invention is on sparking two stroke IC engine with pre-compression in crank chamber, and with the firing chamber layered scavenging of dense mixed gas and weak mixture or the air scavenge trunk by separately, the scavenging of residual gas is mainly undertaken by weak mixture or air; In the hope of reducing fuel gas leakage, purifying exhaust gas also improves fuel firing rate.
As third case sparking two stroke IC engine with pre-compression of present song, its dense mixed gas and weak mixture divide layeredly air feed to give the firing chamber, publish in the spy and open in the clear 55-14992 communique.
The internal-combustion engine of above-mentioned gazette entry, as shown in Figure 4, in the bottom of crank chamber 01 and several scavenge trunks 03,04 and 05 of being communicated with firing chamber 02, scavenge trunk 03 is connecting mixed gas air intake passage 07, scavenge trunk 03 is opened on the opposite of the cylinder bore that relief opening 06 faces toward, this mixed gas air intake passage 07 is provided with the fuel supply mechanism 08 of vaporizer etc., be positioned at relief opening 06 under air air intake passage 09 is set, its opening is in crank chamber 01.
In addition, except that above-mentioned spy opens clear 55-14992 communique, publish in addition and open flat 2-45614 number sparking two stroke IC engine with pre-compression in crank chamber (referring to Fig. 5) the spy, facing to relief opening 06 is the upper end open of scavenge trunk 03, but its lower ending opening is partly not clear in which of crank chamber 01, and the structure of other parts is roughly the same.
For present internal-combustion engine shown in Figure 4, note the poor of mixture strength when thinking scavenging, carry out the scavenging of residual gas and only use weak mixture, in the hope of reducing fuel gas leakage; And the lower end that is communicated with the scavenge trunk 03 of mixed gas air intake passage 07 is the lower openings in crank chamber 01, so dense mixed gas that becomes with the fuel mix of fuel supply mechanism 08, when up stroke the second half crank chamber is air-breathing, descend and flow in the crank chamber 01, when the second half scavenging of decline stroke, rise again and flow in the firing chamber 02, mixed airflow in the above-mentioned scavenge trunk 03 of result is along with the rising of piston, decline and its direction of conversion, dense mixed gas spreads in the air of crank chamber, so its shortcoming is to reduce the weak effect of fuel gas leakage.
A kind of sparking two stroke IC engine with pre-compression in crank chamber that overcomes above-mentioned difficult point of the present invention; When the compression stroke of firing chamber with piston with in the air-breathing importing crank chamber, it is air-breathing to compress this when piston descends, utilize the pressure of this compression, air-breathingly be imported into above-mentioned firing chamber through the scavenge trunk, sparking two stroke IC engine with pre-compression in crank chamber for such is characterized in that: be provided with dense mixed gas is imported dense mixed gas air intake passage in the above-mentioned crank chamber; Have weak mixture or air are imported weak mixture or air air intake passage in the above-mentioned crank chamber; The rotary motion trace of the elongation line of above-mentioned dense mixed gas air intake passage and crankweb periphery is joined, and in that dense mixed gas air intake passage flows into dense mixed airflow in the above-mentioned crank chamber and the corresponding to position of sense of rotation of above-mentioned crankweb periphery is provided with above-mentioned dense mixed gas suction passage from this; On the elongation line of this dense mixed gas air intake passage, form dense mixed gas scavenge trunk.
The present invention is because aforesaid structure, so flow into dense mixed gas in the crank chamber from dense mixed gas air intake passage, promote in viscous resistance that is produced by the revolution of crank end face and inertial force, be directed to dense mixed gas scavenging path, so the fuel diffusion of the air in crank chamber reduces.The fuel composition of its result in the scavenging stream of relief opening discharging is few, has improved fuel firing rate and energy purification of exhaust gas significantly.
In addition as the structure of the present invention's the 2nd scheme, mixed gas separation in the above-mentioned firing chamber is become dense mixed gas and air, and can form the branch stratiform, can finish igniting reposefully, both avoid partial combustion and reached the purpose of improving fuel firing rate and reducing the HC discharge amount with the ignition plug of this dense mixed gas.
Also described just like the present invention's the 3rd scheme, by structure of the present invention, flow into the dense mixed gas of above-mentioned firing chamber from above-mentioned dense mixed gas scavenge trunk, be sandwiched in from being disposed at the weak mixture or the air stream of the opening that connects dense mixed gas scavenge trunk and the opening inflow of two weak mixture air scavenging passages of the line both sides of relief opening; Form the longitudinal turbulence of dense mixed gas along the center line of piston hole,, realize the igniting of mixed gas more reliably because of this dense mixed gas can stably contact ignition plug.
As described in the present invention program 4, by structure of the present invention, make above-mentioned dense mixed gas air intake passage flow to the interior dense mixed gas of crank chamber of above-mentioned dense mixed gas scavenge trunk, can touch the periphery of the crankweb in up stroke, so, promote flowing of the new gas of dense mixed gas along the mobile wind-force of the gyratory directions of this crankweb periphery; Rely on the abundant supply of the new gas of this dense mixed gas, guarantee normal combustion, keep efficient output.
The drawing simple declaration
Fig. 1 is the longitudinal plane side view of sparking two stroke IC engine with pre-compression in crank chamber of the present invention at lower dead centre.
Fig. 2 is the longitudinal plane side view of the sparking two stroke IC engine with pre-compression in crank chamber in the up stroke.
Fig. 3 is the cross-section profile of the sparking two stroke IC engine with pre-compression in crank chamber that blocks of the III-III line of Fig. 2.
Fig. 4 publishes the vertical disconnected profile of opening existing sparking two stroke IC engine with pre-compression in crank chamber in the clear 55-14992 communique in the spy.
Fig. 5 is the longitudinal plane profile that publishes the sparking two stroke IC engine with pre-compression in crank chamber in the flat 2-45614 communique of Yu Tekai.
Embodiment
The following describes one of relevant embodiments of the invention of Fig. 1-shown in Figure 3.
Single inflator sparking two stroke IC engine with pre-compression in crank chamber 1 of the present invention is equipped on the unshowned automotive bicycle of figure, cylinder head 4 is (left side among Fig. 1) forward, on this sparking two stroke IC engine with pre-compression in crank chamber 1, the place ahead of its crank chamber body 2 has stacked cylinder block 3 and cylinder head 4 successively, and mutually combining is integral.
Be formed with cylinder-bore 5 on cylinder block 3, piston 6 is flush-mounted in the cylinder-bore 5, can before and after freely slide, this piston 6 is linking mutually with crankweb 9 usefulness connecting rods 7, along with the slip crankweb 9 of piston 6 is driven and turns round.
Also have, the elongation line that is connected dense mixed gas air intake passage 12 on the rotary track for the embedding part of the crank pin 10 of the big end 8 of the connecting rod in crank chamber 11 7 and crankweb 9, lower rear at crank chamber body 2 is provided with dense mixed gas air intake passage 12, and requirement is flowed to the direction of the dense mixed gas in the crank chamber 11 by this dense mixed gas air intake passage 12, consistent with the gyratory directions of the crank pin 10 that is connected in this dense mixed airflow, but crankweb 9 is arranged to the clockwise direction rotation in Fig. 1.
Install pilot valve 13 additional at the joining portion with crank chamber 11 of dense mixed gas air intake passage 12 in addition, the vaporizer 14 of band throttle valve (scheming not shown) is set and schemes unshowned lubricant oil feed mechanism on the dense mixed gas air intake passage 12 at stream place thereon simultaneously.
Roughly being positioned at dense mixed gas scavenge trunk 16 on the elongation line of dense mixed gas air intake passage 12, that be communicated with crank chamber 11 and firing chamber 15 is that crank chamber body 2 forms with cylinder block 3 is slowly crooked; The exhaust passageway 19 that forms relief opening 18 and be connected therewith on the diametrical position of the scavenging port 17 of this dense mixed gas scavenge trunk 16 and cylinder-bore 5 disposes outlet valve 20 on this exhaust passage 19.
Besides on the top of close crank chamber body 2 with the crank chamber 11 of the connecting part of cylinder block 3, the air intake passage 21 that is being communicated with weak mixture or air, dirty end at this weak mixture or air air intake passage 21 is provided with pilot valve 22, and the stream place is provided with throttle valve 23 thereon; The usefulness link rods 24 such as throttle valve (scheming not shown), throttle valve 23 and outlet valve 20 of vaporizer 14 are interconnected mutually, and when the throttle valve of vaporizer 14 opened and closed, throttle valve 23 and outlet valve 20 be interlock and opening and closing therewith also.
Fig. 1-enforcement state shown in Figure 3 owing to have aforesaid structure, in the running, is supplied to the fuel of dense mixed gas air intake passage 12 and mixes mutually with air by dense mixed gas air intake passage 12 and be dense mixed gas by vaporizer 14; By the unshowned lubricant oil feed mechanism of figure confession lubricant oil with should be dense after the interior dense mixed gas of mixed gas air intake passage 12 mixes, being inhaled into becomes when up stroke in the crank chamber 11 that is negative pressure state.
Then, at the decline stroke, the new gas that is drawn in the crank chamber 11 is compressed, while is at the decline stroke of piston 6, when scavenging port 17, scavenging port 26 openings, compress new gas through dense mixed gas scavenge trunk 16 and the unshowned scavenge trunk of figure supply in the firing chamber 15 by scavenging port 17, scavenging port 26 because this compresses entering of new gas, the part of the burnt gas in the firing chamber 15 is discharged to exhaust passage 19 by relief opening 18; Rising along with piston 6, scavenging port 17, scavenging port 26, relief opening 18 obturations then, mixed gas in the firing chamber 15 because of the rising of piston by compression, near the upper dead center by 25 igniting of spark bolt or by the heat energy of residual gas in the previous cycle own the igniting.
Like this, at up stroke, be drawn into the intake of the new gas of dense mixed gas in the crank chamber 11 by dense mixed gas air intake passage 12, from inaccessible to live about mid point that scavenging ports 17, scavenging port 26 arrive between the upper dead centers maximum period to piston 6 near the lower dead centre; So be in by embedding part at the crank pin 10 of the big end 8 of connecting rod 7 and crankweb 9 crank chamber 11 central downside above-mentioned up stroke approximate midpoint period, to the mobile wind-force of dense mixed gas scavenge trunk 16, promotion from dense mixed gas air intake passage 12 through crank chamber 11 flowing to the new air-flow of dense mixed gas of dense mixed gas scavenge trunk 16, its result, because the abundant supply of the new gas of dense mixed gas, guarantee normal burning, stoped output to reduce significantly.
In addition, from holding the scavenging port 26 that connects scavenging port 17 and the both sides of the line of relief opening 18 under the arm, just containing the weak mixture of fuel or the new gas of net air hardly flows in the firing chamber 15, because the new gas of dense mixing that is flowed into firing chambers 15 by scavenging port 17 is picked up cause relief opening 18 by above-mentioned weak mixture or the new gas that only comprises air and flows to exhaust passage 19 from both sides, so both the combustion gas body was discharged to exhaust passage 19 smoothly with this weak mixture or the new gas that only comprises air, the result has increased filling effect and has improved fuel firing rate.And in above-mentioned firing chamber 15 the new gas of dense mixed gas with weak mixture or the new gas that only comprises air can form stratiform and separate, simultaneously, along passing through the vertical surface of binding scavenging port 17 with the center line of the cylinder-bore 5 of relief opening 18, form the longitudinal turbulence of the new gas of dense mixed gas, and can make it contact ignition plug 25 reliably, even so improved the average air-fuel ratio that is drawn into full mixed gas in the firing chamber 15, also can light a fire really with ignition plug 25, therefore can avoid partial combustion, just can improve fuel firing rate and reduce the discharge capacity of HC.
Also have, because vaporizer 14 all uses link rod 24 linking with throttle valve 23 and outlet valve 20, increase and decrease according to the fuel feed of vaporizer 14, can be corresponding the aperture of adjustment throttle valve 23 and outlet valve 20, the result just can often be set in air fuel ratio in the suitable scope, the exhaust of the discharge when having suppressed low speed or low load operation can promote active thermal environment burning; Also can further simplify vaporizer 14, throttle valve 23 and outlet valve 20 dispatch control systems in the hope of reducing cost.
Claims (4)
1. sparking two stroke IC engine with pre-compression in crank chamber, the firing chamber compression stroke of being undertaken by piston, make air-breathing importing crank chamber, this air-breathing being compressed when piston descends, the pressure that utilizes this compression imports above-mentioned firing chamber with air-breathing through the scavenge trunk, it is characterized in that: be provided with dense mixed gas is imported dense mixed gas air intake passage in the above-mentioned crank chamber; Have with weak mixture or just air import the weak mixture air air intake passage of above-mentioned crank chamber; The above-mentioned dense mixed gas air intake passage and the line of fuel supplying device and the periphery of crankweb are joined, on the sense of rotation consistent location that flows into dense mixed airflow direction in the above-mentioned crank chamber and above-mentioned crankweb periphery from fuel supplying device, above-mentioned dense mixed gas air intake passage is set; On the elongation line of this dense mixed gas air intake passage, form dense mixed gas scavenge trunk.
2. by the described sparking two stroke IC engine with pre-compression in crank chamber of claim 1, it is characterized in that: on above-mentioned weak mixture air air intake passage, mainly be to supply with by the intakeport inhaled air.
3. by claim 1 or the described sparking two stroke IC engine with pre-compression in crank chamber of claim 2, it is characterized in that: the inlet aperture position of above-mentioned dense mixed gas scavenge trunk is from relief opening place farthest, and the inlet aperture position of other scavenge trunks is on the cylinder wall surface of the line both sides of the inlet opening that connects above-mentioned relief opening and above-mentioned dense mixed gas scavenge trunk.
4. by aforesaid right requirement 1 each described sparking two stroke IC engine with pre-compression in crank chamber to the claim 3, it is characterized in that: in the piston up stroke, the big end of above-mentioned crankweb periphery is near the elongation line of above-mentioned dense mixed gas air intake passage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7928496A JPH09242546A (en) | 1996-03-08 | 1996-03-08 | Crank chamber pre-load type spark ignition type two-stroke internal combustion engine |
| JP079284/96 | 1996-03-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1162694A true CN1162694A (en) | 1997-10-22 |
| CN1080371C CN1080371C (en) | 2002-03-06 |
Family
ID=13685576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97102487A Expired - Fee Related CN1080371C (en) | 1996-03-08 | 1997-02-20 | Sparking two stroke IC engine with pre-compression in crank chamber |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPH09242546A (en) |
| CN (1) | CN1080371C (en) |
| AU (1) | AU710491B2 (en) |
| FR (1) | FR2745849B1 (en) |
| TW (1) | TW325505B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678380A (en) * | 2011-03-09 | 2012-09-19 | 株式会社牧田 | Two-stroke engine with silencer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU735629B2 (en) * | 1997-05-15 | 2001-07-12 | Applied Automotive Concepts Pty Ltd | Two-stroke internal combustion engine having improved fuel porting |
| AUPO680597A0 (en) * | 1997-05-15 | 1997-06-05 | David, Jeffrey Andrew | Two-stroke intrernal combustion engine having improved fuel porting |
| EP2775118B1 (en) | 2008-09-24 | 2018-03-28 | Makita Corporation | Stratified scavenging two-stroke engine |
| JP5922569B2 (en) | 2012-12-28 | 2016-05-24 | 株式会社マキタ | Stratified scavenging two-stroke engine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4034724A (en) * | 1976-04-14 | 1977-07-12 | Flanagan Richard P | Stratified charging of internal combustion engines |
| FR2425543B1 (en) * | 1978-05-12 | 1986-02-07 | Univ Belfast | TWO-STROKE INTERNAL COMBUSTION ENGINE |
| EP0015792A1 (en) * | 1979-02-13 | 1980-09-17 | ANVAR Agence Nationale de Valorisation de la Recherche | Method of supply to a two-stroke engine and two-stroke engines of the balancing-piston type with injection of carburetted mixture |
| GB2142085B (en) * | 1983-04-28 | 1987-02-18 | Univ Belfast | Two-stroke crankcase compression engine |
| US4598673A (en) * | 1985-02-06 | 1986-07-08 | Outboard Marine Corporation | Air-scavenged two-cycle internal combustion engine |
| FR2622633B1 (en) * | 1987-01-14 | 1992-12-18 | Thery Georges | COMBUSTION CHAMBER OF A 2-STROKE RECIPROCATING ENGINE AND APPLIED ENGINE |
| US4899698A (en) * | 1987-10-30 | 1990-02-13 | Georges Thery | Combustion chamber for two-stroke reciprocating engine, and and engine making use thereof |
| JPH0245614A (en) * | 1988-08-05 | 1990-02-15 | Yamaha Motor Co Ltd | Crank chamber preliminarily pressurized type two cycle engine |
-
1996
- 1996-03-08 JP JP7928496A patent/JPH09242546A/en active Pending
- 1996-11-22 TW TW085114419A patent/TW325505B/en active
-
1997
- 1997-02-20 CN CN97102487A patent/CN1080371C/en not_active Expired - Fee Related
- 1997-03-07 AU AU15166/97A patent/AU710491B2/en not_active Ceased
- 1997-03-07 FR FR9702744A patent/FR2745849B1/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678380A (en) * | 2011-03-09 | 2012-09-19 | 株式会社牧田 | Two-stroke engine with silencer |
| CN102678380B (en) * | 2011-03-09 | 2016-12-14 | 株式会社牧田 | There is the two stroke engine of deafener |
Also Published As
| Publication number | Publication date |
|---|---|
| AU1516697A (en) | 1997-09-11 |
| FR2745849A1 (en) | 1997-09-12 |
| TW325505B (en) | 1998-01-21 |
| AU710491B2 (en) | 1999-09-23 |
| CN1080371C (en) | 2002-03-06 |
| FR2745849B1 (en) | 1999-06-25 |
| JPH09242546A (en) | 1997-09-16 |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |