CN1311158C - Lay-out structure of input system parts of fuel jet engine - Google Patents
Lay-out structure of input system parts of fuel jet engine Download PDFInfo
- Publication number
- CN1311158C CN1311158C CNB021434212A CN02143421A CN1311158C CN 1311158 C CN1311158 C CN 1311158C CN B021434212 A CNB021434212 A CN B021434212A CN 02143421 A CN02143421 A CN 02143421A CN 1311158 C CN1311158 C CN 1311158C
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- Prior art keywords
- throttle valve
- air
- engine
- piston
- gas
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Abstract
The invention provides a component configuration for configuring in-take system components in an efficient space for a swing unit type fuel injection engine with a suction piston mounted on a throttle body rocking together with the engine. The in-take system for the fuel injection engine comprises the engine 29 rockingly mounted on a body frame 34 together with a rear wheel, the throttle body 48 provided on an in-take passage at the rear upper part of a rocking center 31 of the engine, and a suction piston 51 mounted protruding on the upper side of the throttle body, wherein an injector 50 and a suction pressure sensor 57 are provided on the throttle body 48 or in the in-take passages 39, 40 in a range up to the height of the top of the suction piston 51.
Description
Technical field
The present invention relates to a kind of motorcycle.
Background technique
In scooter, use a kind of oscillator device h type engine h.This oscillator device h type engine h is constructed by this way, make the crankcase and the reduction-gear housing of motor integrally interosculate, form an engine device, this retarder is connected with a trailing wheel, after this can swingingly be installed on the body framework by a vibration damper, and the front portion of engine device can be installed on the body framework rotationally by a pivot.Therefore, this engine device can rotate with trailing wheel around a pivot in certain angle, thereby with respect to the body framework swing, so that during travelling, absorb vibration.
Though use this kind oscillator device h type engine h of a kind of two stroke engine with vaporizer so far as scooter, but we consider and a kind of fuel injection type four stroke engine is used in research now, to obtain high-precision operation controllability or to improve toxic emission.In order to control the injection or the igniting of this kind fuel injected engine according to serviceability, need pressure drop that detects at coolant temperature, intake temperature, manifold place or the like, and the signal conveys that records is arrived engine controlling unit (ECU).This ECU drives and controls motor according to one according to these running working condition signal predetermined program that record or image.
On the other hand, in the motor car engine of a band vaporizer, being provided with the input system structure of an air-breathing piston in a kind of gas-entered passageway between vaporizer and air washer, is known.Air-breathing piston is controlled air inflow by to-and-fro motion according to the pressure drop at manifold place and in gas-entered passageway and the cross-section area that changes the path, thereby the motor optimum performance that the operating mode that can obtain and turn round adapts, and can prevent that noise from leaking to the external world by gas-entered passageway.
Air-breathing piston has a diaphragm chamber and a piston, and this diaphragm chamber comprises first Room and second Room that is separated by a film, and this piston and film interlocking, thereby to-and-fro motion in gas-entered passageway.First Room on film one side is communicated with by a Kong Eryu gas-entered passageway that forms on the piston far-end that inserts gas-entered passageway.Because the area of gas-entered passageway is owing to piston reduces, so the remarkable pressure drop in the distal portion of piston and downstream side thereof.Therefore this pressure drop acts on first Room by internal piston.
On the other hand, second Room on the film opposite side is communicated with by the gas-entered passageway of communication path with the piston upstream side.The gas-entered passageway of piston upstream side is connected with air washer, and it is in the atmospheric conditions basically.Therefore, a large amount of atmosphere act on second Room by communication path.Thereby, between the both sides of film, produce pressure difference, and this pressure official post deformation of thin membrane, thereby piston correspondingly to-and-fro motion in gas-entered passageway.
On the other hand, in fuel injected engine, a throttle valve body that is provided with throttle valve is connected the approximate midpoint of gas-entered passageway, and air inflow is controlled by the open-close control operation of throttle valve.In this kind fuel injected engine, the control that fuel sprays can be carried out according to the highi degree of accuracy running operating mode by electronic control and so on, thereby operating characteristics is fully safe with the counter measure that prevents toxic emission.Therefore, in correlation technique, adopt air-breathing piston as in the situation of vaporizer.
But, in fuel injected engine, need in wideer control range, carry out sensitiveer fuel control according to the running operating mode, so that improve operating characteristics and toxic emission.
According to this kind requirement, consider as in the vaporizer situation, in gas handling system, to be provided with an air-breathing piston.In this case, in the oscillator device h type engine h, throttle valve body is swung with motor.When a sizable air-breathing piston of volume that is installed on the throttle valve body was swung, it produced restriction to the layout of the parts in the hunting range.Special under the situation of motorcycle, the spatial constraints around the motor is serious, therefore, needs compact layout for be arranged on sparger in the input system, inspiratory pressure sensor etc. with air-breathing piston.
Patent documentation 1: the spy of Japan opens the 2000-64925 communique
Summary of the invention
In view of this, the objective of the invention is, provide a kind of motorcycle, wherein, the input system parts spatially are placed in the oscillator device type fuel injected engine effectively, and this motor is provided with an air-breathing piston on the throttle valve body of swinging with motor.
In order to solve this technical task, the invention provides a kind of motorcycle, with respect to car body trailing wheel and motor are installed swingably, has the gas-entered passageway that is communicated with aforementioned motor, in aforementioned gas-entered passageway, have the throttle valve body of accommodating throttle valve, also have and be installed on this gas-entered passageway and the air-breathing piston more outstanding than aforementioned gas-entered passageway, it is characterized in that, sparger and air inlet pressure sensor in being lower than the scope of aforementioned air-breathing piston head, be installed on aforementioned throttle valve body and aforementioned gas-entered passageway one of at least.
In this configuration, because sparger and air inlet pressure sensor are set on the position at the top that is lower than the sizable air-breathing piston of volume, so, even when they are swung, this position also is included in the hunting range of air-breathing piston, therefore they can not hinder other parts around the motor, and therefore the redundant space that is produced by the swing of motor can be used for settling sparger and air inlet pressure sensor effectively.
A preferred embodiment is characterised in that, air inlet pressure sensor is installed on the throttle valve body at contiguous air-breathing position of piston place, and sparger is installed in the gas-entered passageway in throttle valve downstream side of throttle valve body.
In this configuration, air inlet pressure sensor is installed on the throttle valve body at contiguous air-breathing position of piston place compactly, and sparger be installed in compactly (for example) throttle valve downstream side intake manifold near.
Description of drawings
Fig. 1 is the profile diagram of scooter of the present invention.
Fig. 2 is the side view of the major component of motorcycle shown in Figure 1.
Fig. 3 is the planimetric map of the major component of motorcycle shown in Figure 1.
Fig. 4 is the sketch of the engine section of motorcycle shown in Figure 1.
Fig. 5 represents the mounting structure of the air inlet pressure sensor of motorcycle shown in Figure 1.
Fig. 6 represents the layout structure of air inlet pressure sensor shown in Figure 5.
Fig. 7 is the sketch that shows gas-entered passageway of the present invention.
Fig. 8 is the side view of the major component of input system shown in Fig. 1.
[label]
1, car body 2, handle 3, front tube
4, steering shaft 5, front-wheel 6, body framework
7, cover 8, car body cover 9, vehicle seat
10, fuel tank 11, helmet box 12, steam hose
13, detoxication can 14, exhaust hose 15, throttle cable
16, brake cable 17, trailing wheel 18, brake camshaft
19, engine device 20, engine bracker 21, body framework lower member
22, pivot 23, vibration damper 24, retarder
25, air washer 25a, air enter hole 26, dust-proof cover
27, support 28, foot-actuated levers 29, motor
30, conduit 30a, perforate end 31, axle
32, connecting plate 33, upper end 34, body framework back part
35, lower end 36, carriage 37, cylinder
38, bent axle 39, intake manifold 40, sucking pipe
41, outlet pipe 42, thermoinsulation material 43, flange
44, bolt 45, maintenance cover 46, cooling-water temperature sensor
47, engine controlling unit 48, throttle valve body 49, joint
49a, joint end 50, sparger 51, air-breathing piston
52, diaphragm chamber 53, plasmas channel 54, atmosphere entry port
55, connecting rod 56, automatic choke 57, air inlet pressure sensor
58, vacuum hose 59, intake air temperature sensor 60, carriage
61, body framework parts 62, fuel pipe 63, strut
64, spill pipe 65, storage battery 66, collection box
72, wire component 73, carriage 74, throttle valve
75, manifold ports 76, joint 77, adhesive plaster
78, elastomer connector 78a, groove 79, piston
80, film 81, first Room 82, second Room
83, vacuum port 84, spring 86, secondary air drawing-in system
87, vacuum hose 88, steam hose 89, water temperature signal cable
90, gas leakage flexible pipe 91, gas leakage pipe 106, bolt
Embodiment
Referring now to accompanying drawing one embodiment of the present of invention are described.
Fig. 1 is a profile diagram of using scooter of the present invention.
Car body 1 has one handle 2 in front, and handle 2 is connected on the front-wheel 5 by steering shaft 4, and front tube 3 is inserted by steering shaft 4.Body framework 6 is connected on the front tube 3.Body framework 6 forms the frame structure of whole locomotive body.The front portion of car body is covered by cover 7.Car body 1 is covered by the outside of car body cover 8 from body framework 6.Car body central authorities are provided with vehicle seat 9, and vehicle seat 9 belows are provided with fuel tank 10, and vehicle seat 9 back are provided with helmet box (parking space) 11.Fuel tank 10 is given sparger (not shown) transfer the fuel by unshowned oil pipe.One end of steam hose 12 is connected to the top of fuel tank 10, and its other end is connected on the detoxication can 13.Detoxication can 13 is connected on the input system (as throttle valve body) by exhaust hose 14.Throttle cable 15 is fixed on the unshowned pinch cock (or throttling rod) of handle right part, and is connected on the throttle valve in the input system.Brake cable 16 is fixed on the brake rod (not shown) on the same handle part, and is connected on the brake camshaft 18 on the trailing wheel 17.
An air washer 25 is arranged on the upper side of retarder 24.Air washer 25 has an outside air to enter hole 25a in its front portion, and a dust-proof cover 26 made from rubber or resin is arranged in the car body cover 8, enters the hole so that cover air.Support of label 27 expressions, and foot-actuated levers of label 28 expressions.
Fig. 2 and Fig. 3 represent a side view and a planimetric map respectively, and they show the major component that is provided with the motorcycle of fuel injected engine of the present invention.Fig. 4 is the enlarged view of its input system.
Oscillator device starts the engine device 19 of type in its anterior place and 20 whole connections of engine bracker.Connecting plate 32 can be installed on the engine bracker 20 rotationally by axle 31.Connecting plate 32 can be installed on the body framework lower member 21 rotationally by pivot 22.
A vibration damper (attenuator) 23 is arranged on the rear portion of engine device 19.The upper end 33 of vibration damper 23 can be installed on the body framework back part 34 rotationally, and its lower end 35 is installed on the carriage 36 of rear end of engine device 19.Therefore, engine device 19 can be installed on the body framework rotationally, thereby can be centered around pivot 22 swings at its place, front side.As shown in Figure 4, the cylinder 37 of motor 29 tilts to the almost degree of level to the front portion.Bent axle 38 is swung around above-mentioned pivot 22 with axle 31 (Fig. 2) of engine bracker 20, as shown by arrow D.
Air at place, the front portion of air washer 25 enters the dust-proof cover 26 (dotted line among Fig. 1) that hole 25a makes with rubber, resin etc. and covers.A car body cover is installed in the outside of dust-proof cover 26.The atmosphere entry port 54 of air-breathing piston 51 opens wide in dust-proof cover 26.
Air inlet pressure sensor 57 can be arranged near the intake manifold.Throttle valve position sensor (not shown) can be arranged on connecting rod 55 opposed throttle valve valve shafts on.In this case, automatic choke 56 is arranged on the upstream side of throttle valve, to prevent to hinder throttle valve position sensor.
The preceding bottom of fuel tank 10 is fixed on the body framework left and right sides parts 61 by carriage 60.Fuel pipe 62 is drawn from fuel tank 10 rear portions, so that to sparger 50 transfer the fuels.(Fig. 2 Fig. 4) is fixed on the body framework back part 34 fuel pipe 62 by strut 63.Label 64 (Fig. 2) expression spill pipe.Label 65 (Fig. 3) expression storage battery, label 66 (Fig. 3) expression freezing mixture collection box.As shown in Figure 3, the secondary air drawing-in system 86 used of purifying exhaust gas is arranged on the right side of car body central authorities.Secondary air drawing-in system 86 is communicated with intake manifold by vacuum hose 87, makes outside air supply on the catalyzer (not shown) through steam hose 88 according to the pressure drop at manifold place, to reheat exhaust.
As shown in Figure 2, air washer 25 is connected with gas leakage flexible pipe 90.The cam chain case (not shown) of gas leakage flexible pipe 90 and the crankcase (not shown) that is communicated with motor 29 is communicated with, to prevent that former thereby oil sealing generation comes off or power loss owing to engine crankcase internal pressure increase etc.Gas leakage flexible pipe 90 is connected to the cleaning side of air washer after by element, and the firing chamber is introduced in gas leakage again.
Fig. 5 is the view that shows the installment state of air inlet pressure sensor when observing the throttle valve body part from the car body right side.
Air inlet pressure sensor 57 is fixed on the throttle valve body 48 by carriage 73 usefulness bolts 106, and its fixed position vicinity is installed in the trailing flank of the diaphragm chamber 52 of the air-breathing piston 51 on the throttle valve body 48.Air inlet pressure sensor 57 is communicated with intake manifold 39 (or sucking pipe 40) by vacuum hose 58.
Fig. 6 is the sketch that shows the piping layout of above-mentioned air inlet pressure sensor 57.
The C of inspection center (for example detecting thin film center) that vacuum hose 58 connects into towards air inlet pressure sensor 57 opens wide.It is the pressure drop at detection of engine manifold place highly precisely.
Fig. 7 is the sketch of air inlet passage.
Sucking pipe 40 usefulness bolts 44 start the end face P place of pusher side to be connected on the intake manifold 39 that forms on the cylinder head at motor by flange 43 and thermoinsulation material 42 at it.
Sucking pipe 40 is for example made with aluminum alloy, and utilizes the elastomer connector 78 of end place's scorification at its upstream fixing.Throttle valve body 48 is force-fitted in the elastomer connector 78, and the adhesive tape (not shown) is connected airtight on the outer circumferential face groove 78a of elastomer connector 78, so that fastening.Connecting throttle valve bodys 48 by elastomer connector 78 can block the vibration from motor and prevent that noise from leaking into the outside from air washer, also can reduce being installed in the air-breathing piston 51 on the throttle valve body 48 or the heat affecting of throttle valve 74, thereby make operation obtain the accuracy and the reliability of height.
Air-breathing piston 51 comprises a pistons reciprocating 79 in integrally formed diaphragm chamber 52 above the throttle valve body 48 and gas-entered passageway 48a at throttle valve body 48.Diaphragm chamber 52 comprises 81 and second Room (following chamber) 82, one first Room (going up the chamber), and both separate with film 80.First Room 81 pass film 80 and with the internal communication of piston 79.Far-end at piston 79 forms a vacuum port 83, in order to the pressure drop at manifold place is introduced first Room 81.Between the bottom of the end face of diaphragm chamber 52 and piston 79, a spring 84 is set.This spring 84 can be promoted piston 79 along its direction (piston is closed the direction of gas-entered passageway 48a) of charging into the gas-entered passageway 48a of throttle valve body 48.The pressure drop of introducing the manifold place of piston 79 upwards spurs piston 79 and the direction (direction of the open gas-entered passageway 48a of piston) of antagonism spring 84 works along it.
Second Room 82 of film 80 downsides is communicated with the plasmas channel 53 of the outer surface that passes throttle valve body 48.The atmosphere entry port 54 at the place, end of plasmas channel 53 opens wide in the downside place of throttle valve body 48.The atmospheric pressure of introducing by atmosphere entry port 54 acts on second Room 82.Therefore, film 80 is subjected to one and in first Room 81 of its both sides and the effect of the corresponding power of pressure difference between second Room 82, thereby makes the piston 79 can be along the direction to-and-fro motion that opens and closes.
As mentioned above, air inlet pressure sensor 57 is installed in (see figure 5) on the throttle valve body 48 in the position of contiguous air-breathing piston 51 by carriage 73.As mentioned above, air inlet pressure sensor 57 is communicated with (see figure 6) by vacuum hose 58 with intake manifold 39.The sparger 50 that connects the fuel tank (not shown) by fuel pipe 62 is fixed on the sucking pipe 40.Sparger 50 is mounted to the gas-entered passageway in throttle valve 74 downstream sides in the throttle valve body 48.Both positions of air inlet pressure sensor 57 and sparger 50 are lower than the top of air-breathing piston 51.
In the oscillator device h type engine h, air-breathing piston 51 is mounted in assembly maximum in the input system parts on the throttle valve body 48, air inlet pressure sensor 57 and sparger 50 are arranged in the space that the position is lower than air-breathing piston 51, air inlet pressure sensor 57 and sparger 50 can be left in effectively in the hunting range of input system (wherein can not settle circumferential component), even body framework or other parts around when input system is swung, also can not hindering.The position of air inlet pressure sensor 57 and sparger 50 is not limited to position shown in the figure, as long as they are lower than air-breathing piston 51, and they also can be installed in throttle valve body 48, sucking pipe 40, the appropriate position above the intake manifold 39 that adapts with circumferential component, body framework structure etc.
Fig. 8 is the side view of major component of the input system of above-mentioned motor.
As mentioned above, engine device 19 is around two axis swings of pivot 22 and axle 31.The axis C of the cylinder of motor 29 forwards tilts, and the throttle valve body 48 of sucking pipe 40 is connected on the intake manifold 39 that is communicated with cylinder head.Air-breathing piston 51 is mounted to from throttle valve body 48 and projects upwards.Connecting rod 55 is fixed on the throttle spindle 93 of throttle valve body 48.The end of throttle cable 15 is fixed on the carriage 96, and core is fixed on the connecting rod 55.This can rotate connecting rod 55 owing to the operation of throttle valve, and opens and closes the throttle valve (not shown) that is fixed on the valve shaft 93.Idle adjustment screw of label 97 expressions.
Air inlet pressure sensor 57 is fixed on the throttle valve body 48 by carriage 73 usefulness bolts 106 in the position of contiguous air-breathing piston 51.Air inlet pressure sensor 57 is communicated with intake manifold 39 by vacuum hose 58.Sparger 50 (see figure 2)s that are communicated with fuel tank 10 by fuel pipe 62 are installed on the sucking pipe 40.
As mentioned above, both mounting points of air inlet pressure sensor 57 and sparger 50 are lower than the top of air-breathing piston 51.In the oscillator device h type engine h, air-breathing piston 51 is mounted in assembly maximum in the input system parts on the throttle valve body 48, air inlet pressure sensor 57 and sparger 50 are arranged in the space that the position is lower than air-breathing piston 51, air inlet pressure sensor 57 and sparger 50 can be left in effectively in the hunting range of input system (wherein can not settle circumferential component), even body framework or other parts (for example, storage battery shown in Fig. 3 65 around when input system is swung, also can not hindering, the unshowned cross-frame that is used to connect left and right sides body framework 34 in the storage battery back, fuel tank or the like).A helmet box (parking space) sometimes is set on the position of fuel tank 10.At this moment with the situation of fuel tank in the same, sparger 50 and air inlet pressure sensor 57 can be arranged in the input system swing space of helmet box below and do not hinder bottom the helmet box, other parts etc.
The invention effect
As describing so far, according to the present invention, because sparger and air inlet pressure sensor the top that the position is lower than the sizable air-breathing piston of volume is set, so, even when they are swung, this position also is coated in the hunting range of air-breathing piston, so they do not hinder other parts around the motor, and therefore the redundant space that is produced by engine wobble can be used for settling sparger and air inlet pressure sensor effectively.
Claims (3)
1. motorcycle, with respect to car body trailing wheel and motor are installed swingably, has the gas-entered passageway that is communicated with described motor, have the throttle valve body of accommodating throttle valve at described gas-entered passageway, also have and be installed on this gas-entered passageway and the air-breathing piston more outstanding than described gas-entered passageway, it is characterized in that, sparger and air inlet pressure sensor in being lower than the scope of described air-breathing piston head, be installed on described throttle valve body and described gas-entered passageway one of at least.
2. motorcycle as claimed in claim 1 is characterized in that one of described air inlet pressure sensor and described sparger are installed on described throttle valve body, and in described air inlet pressure sensor and the described sparger another is installed on described gas-entered passageway.
3. motorcycle as claimed in claim 1 or 2 is characterized in that, described air inlet pressure sensor is installed on the described throttle valve body at contiguous described air-breathing position of piston place, and described sparger is installed on the gas-entered passageway that more leans on downstream one side than described throttle valve.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP291760/2001 | 2001-09-25 | ||
| JP291760/01 | 2001-09-25 | ||
| JP2001291760A JP2003095176A (en) | 2001-09-25 | 2001-09-25 | In-take system component configuration for fuel injection engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1409002A CN1409002A (en) | 2003-04-09 |
| CN1311158C true CN1311158C (en) | 2007-04-18 |
Family
ID=19113852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021434212A Expired - Fee Related CN1311158C (en) | 2001-09-25 | 2002-09-25 | Lay-out structure of input system parts of fuel jet engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003095176A (en) |
| CN (1) | CN1311158C (en) |
| TW (1) | TWI229163B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4529642B2 (en) * | 2004-11-02 | 2010-08-25 | スズキ株式会社 | Scooter type motorcycle |
| JP2006283585A (en) | 2005-03-31 | 2006-10-19 | Yamaha Motor Co Ltd | Throttle body |
| JP6366141B2 (en) | 2015-05-29 | 2018-08-01 | 本田技研工業株式会社 | Saddle riding |
| CN214533325U (en) * | 2020-11-16 | 2021-10-29 | 浙江春风动力股份有限公司 | Motorcycle with less pollutant discharge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4117046A (en) * | 1977-07-07 | 1978-09-26 | Toyota Jidosha Kogyo Kabushiki Kaisha | Variable-venturi carburetor |
| JPS59206659A (en) * | 1983-05-10 | 1984-11-22 | Suzuki Motor Co Ltd | V-type engine |
| US5186140A (en) * | 1991-03-15 | 1993-02-16 | Yamaha Hatsudoki Kabushiki Kaisha | Air intake system for fuel injection type four cycle engine |
| US5353752A (en) * | 1992-08-31 | 1994-10-11 | Toyota Jidosha Kabushiki Kaisha | Intake system for internal combustion engine |
| US5474039A (en) * | 1993-10-21 | 1995-12-12 | Aktiebolaget Electrolux | Inlet tube for an internal combustion engine |
-
2001
- 2001-09-25 JP JP2001291760A patent/JP2003095176A/en not_active Withdrawn
-
2002
- 2002-09-11 TW TW91120724A patent/TWI229163B/en not_active IP Right Cessation
- 2002-09-25 CN CNB021434212A patent/CN1311158C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4117046A (en) * | 1977-07-07 | 1978-09-26 | Toyota Jidosha Kogyo Kabushiki Kaisha | Variable-venturi carburetor |
| JPS59206659A (en) * | 1983-05-10 | 1984-11-22 | Suzuki Motor Co Ltd | V-type engine |
| US5186140A (en) * | 1991-03-15 | 1993-02-16 | Yamaha Hatsudoki Kabushiki Kaisha | Air intake system for fuel injection type four cycle engine |
| US5353752A (en) * | 1992-08-31 | 1994-10-11 | Toyota Jidosha Kabushiki Kaisha | Intake system for internal combustion engine |
| US5474039A (en) * | 1993-10-21 | 1995-12-12 | Aktiebolaget Electrolux | Inlet tube for an internal combustion engine |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2003095176A (en) | 2003-04-03 |
| TWI229163B (en) | 2005-03-11 |
| CN1409002A (en) | 2003-04-09 |
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Granted publication date: 20070418 Termination date: 20100925 |