CN1991161B - Fuel injection system and fuel injection valve device used in fuel injection system - Google Patents
Fuel injection system and fuel injection valve device used in fuel injection system Download PDFInfo
- Publication number
- CN1991161B CN1991161B CN2006101711114A CN200610171111A CN1991161B CN 1991161 B CN1991161 B CN 1991161B CN 2006101711114 A CN2006101711114 A CN 2006101711114A CN 200610171111 A CN200610171111 A CN 200610171111A CN 1991161 B CN1991161 B CN 1991161B
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- Prior art keywords
- fuel
- aforementioned
- fuel injection
- valve device
- injection valve
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- 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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/14—Arrangements of injectors with respect to engines; Mounting of injectors
- F02M61/145—Arrangements of injectors with respect to engines; Mounting of injectors the injection nozzle opening into the air intake conduit
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- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/04—Injectors peculiar thereto
- F02M69/042—Positioning of injectors with respect to engine, e.g. in the air intake conduit
- F02M69/044—Positioning of injectors with respect to engine, e.g. in the air intake conduit for injecting into the intake conduit downstream of an air throttle valve
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- 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
- F02M69/00—Low-pressure fuel-injection apparatus ; Apparatus with both continuous and intermittent injection; Apparatus injecting different types of fuel
- F02M69/46—Details, component parts or accessories not provided for in, or of interest apart from, the apparatus covered by groups F02M69/02 - F02M69/44
- F02M69/462—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The present invention provided a fuel injection system including: a fuel hose; a fuel supply tube; a fuel injection valve device provided with a nozzle portion having an injection port for supplying a fuel introduced from a fuel tank though the fuel hose to a combustion chamber of an internal combustion engine through a connection tube and connected with the other end of the fuel supply tube; an intake path communicating with the combustion chamber, the nozzle portion being attached toward the intake path. The fuel supply tube includes a joint which can be freely detached and connected to the connection tube. The fuel injection valve device includes the nozzle portion having the injection port, the nozzle portion being installed in an intake pipe which is communicated with the combustion chamber, also includes the connection tube connected with one end of the fuel supply tube the other end of which is integrally connected with a fuel hose, and the injection port being used for supplying the fuel introduced from the fuel tank though the fuel hose to the combustion chamber of the internal combustion engine through the connection tube. The fuel injection valve device is provided with the connection tube protruding at an end portion opposite to the nozzle portion. The connection tube has a diameter-expanded portion formed on the outer peripheral surface of the connection tube in a ring shape, and if the connection tube is inserted and connected to the joint of the fuel supply tube, the diameter-expanded portion functions to engage with an engagement claw of the joint.
Description
Technical field
The present invention relates to the fuel injection system used to the firing chamber of internal-combustion engine fuel supplying and the fuel injection valve device that is applicable to this fuel injection system.
Background technique
The fuel injection valve device in past, spray nozzle part is equipped with, this spray nozzle part has the jetburner to the firing chamber of internal-combustion engine burner oil, simultaneously, described fuel injection valve device is made of the drive portion and the built-in housing of the stream of fuel circulation that makes of the valve body that opens and closes aforementioned jetburner, this valve body of driven for opening and closing.
An example as this fuel injection valve device, in patent documentation 1, disclosed a kind of technological thought, this technological thought is: a kind of Fuelinjection nozzle holding device, be used to keep the fuel outlet side end is installed to fuel injection valve device on the mounting hole of engine charge access structure body, wherein, utilization is formed at the fixed retainer on the carriage of holding up from the outer surface of aforementioned inlet air pathway structure, keep being coupled to the combination block of periphery coupling together between fuel hose and the Fuelinjection nozzle of fuel inlet side end, by this structure, can reduce the number of packages of parts and reduce production costs.
[patent documentation 1] spy opens the 2003-49740 communique
Summary of the invention
The present invention is relevant with aforementioned techniques thought, its objective is, the fuel injection valve device that a kind of fuel injection system is provided and is applicable to this fuel injection system, can further improve can meeting and require or the fuel injection systems of the characteristic of the fuel hose that connected unify installation capability and maintainability in the fuel injection valve device that is applicable to this fuel injection system to being provided with of narrower place, simultaneously, further reduce parts number of packages, realize miniaturization and reduce cost.
Fuel injection system of the present invention, comprise: fuel hose, end is connected to the fuel supply pipe on the aforementioned fuel hose integrally, fuel injection valve device, described fuel injection valve device is equipped with spray nozzle part, described spray nozzle part is connected on another end of aforementioned fuel supply pipe, be provided with the jetburner that will be supplied to the firing chamber of internal-combustion engine to use via connecting tube from the fuel that fuel tank imports through fuel hose, with the inlet air pathway that the previous combustion chamber is communicated with, aforementioned spray nozzle part is installed towards aforementioned inlet air pathway ground; It is characterized in that, aforementioned fuel supply pipe possesses the joint that is connected with aforementioned connecting tube detachable ground, described fuel injection valve device comprises the spray nozzle part that is provided with jetburner, described spray nozzle part is installed on the suction tude that is communicated with the previous combustion chamber, also comprise connecting tube, described connecting tube is connected to an end and becomes on another end of a fuel supply pipe that integrally is connected with fuel hose, described jetburner is used for the supply of fuel that is imported by described connecting tube via described fuel supply pipe from fuel tank is given the firing chamber of internal-combustion engine, described fuel injection valve device has the connecting tube on the outstanding end that is arranged on described spray nozzle part opposition side, described connecting tube has the wide diameter portion on the outer circumferential face that is formed on described connecting tube in the form of a ring, and described wide diameter portion cooperates with the pawl that cooperates of described joint when described connecting tube is inserted into and is connected on the described joint of described fuel supply pipe.
According to this structure, using the fuel supply pipe that is connected integrally with fuel hose, supplying under the situation of the fuel that comes from fuel tank to the firing chamber, can easily fuel supply pipe be connected on the fuel injection valve device via fuel injection valve device.Therefore, the installation capability and the maintainability of fuel supply pipe and fuel injection valve device have been improved.In addition because mounting structure on the inlet air pathway of fuel injection valve device is simplified, so, can reduce the parts in the fuel injection system number of packages, realize miniaturization and reduce production costs.
According to this structure, under the situation of using the fuel supply pipe that is connected with fuel hose, can easily fuel supply pipe and fuel injection valve device be coupled together with being integral, improve installation capability, the maintainability of fuel injection valve device.In addition, because the mounting structure of fuel injection valve device is simplified, so, can reduce the number of packages of parts and realize miniaturization.
In addition, in aforementioned fuel injection system, aforementioned fuel injection valve device, be provided with and give the stream of aforementioned jetburner via the supply of fuel that aforementioned connecting tube flows into, simultaneously, be equipped with at the place, an end of the axial direction of aforementioned stream aforementioned connecting tube is set, the housing section of aforementioned spray nozzle part is set on another end, on aforementioned fuel supply pipe or aforementioned housing section, lip part is set, simultaneously, when being fixed to aforementioned fuel injection valve device on the aforementioned suction tude, can simply and reliably fuel injection valve device be fixed on the aforementioned suction tude via said flange portion.In addition, owing to fuel supply pipe can be connected on the so fixing fuel injection valve device, so, can further improve the installation capability and the maintainability of each parts in the described fuel injection system.
And then, when utilizing resin material to constitute aforementioned fuel hose and aforementioned fuel supply pipe, can suppress significantly because the deterioration that fuel and heat etc. cause.In addition, under the situation of the fuel hose of this employing resin material, aforementioned fuel injection system, owing to can easily fuel supply pipe and connecting tube be coupled together, so can easily fuel supply pipe be connected on the fuel injection valve device, can guarantee high installation capability and maintainability.
And then preferably, aforementioned fuel hose and aforementioned fuel supply pipe couple together by being pressed into to form integratedly.In addition, when constituting the aforementioned connecting tube of aforementioned fuel supply pipe and aforementioned fuel injection valve device removably, can further improve the installation capability and the maintainability of fuel injection system.
In addition, aforementioned fuel injection valve device, be provided with and give the stream of aforementioned jetburner via the supply of fuel that aforementioned connecting tube flows into, simultaneously, housing section is equipped with, this housing section is provided with aforementioned connecting tube on the end in the axial direction of aforementioned stream, aforementioned spray nozzle part is set on another end, aforementioned fuel injection valve device is fixed to the lip part of using on the aforementioned suction tude being provided with on the aforementioned housing section, by this, can further improve the installation capability of fuel injection valve device, so, be preferred.
And then, if aforementioned connecting tube and aforementioned fuel supply pipe can freely constitute with dismantling, then can further improve the installation capability and the maintainability of fuel injection valve device.
According to the present invention, can improve installation capability and the maintainability of fuel injection valve device in fuel injection system.In addition,, can cut down the parts number of packages of fuel injection system and fuel injection system, can and reduce production costs its miniaturization according to the present invention.
Description of drawings
Fig. 1 is the longitudinal section that the part according to the fuel injection system of first kind of form of implementation of the present invention cuts.
Fig. 2 A is the sectional view according to the fuel hose of aforementioned form of implementation, and Fig. 2 B represents that the fuel hose of aforementioned form of implementation is by the sectional view of the state of hole enlargement.
Fig. 3 is used for illustrating the longitudinal section that cuts in the part according to the Connection Step of each structure member of the fuel injection system of aforementioned form of implementation.
Fig. 4 is the sectional view along the IV-IV line among Fig. 3.
Fig. 5 is the longitudinal section that the part according to the fuel injection system of second kind of form of implementation of the present invention cuts.
Fig. 6 A is the planimetric map according to the flange plate of aforementioned form of implementation, and Fig. 6 B is that expression utilizes two said flange plate holders to go into the explanatory drawing of state of the slot part of housing section, and Fig. 6 C is that expression utilizes two said flange plate holders to go into the explanatory drawing of state of the slot part of housing section.
Fig. 7 is the vertical perspective view that the part according to the fuel injection system of the third form of implementation of the present invention cuts.
Embodiment
Below, for fuel injection system according to the present invention, enumerate the preferred embodiment relevant, and describe in detail with reference to accompanying drawing with the fuel injection valve device that is applicable to fuel injection system.
At first first kind of form of implementation of the present invention is described with reference to Fig. 1～Fig. 4.Fig. 1 is the longitudinal section that the part according to the fuel injection system 10a of first kind of form of implementation of the present invention cuts.
As shown in Figure 1, fuel injection system 10a is by constituting with the bottom: the suction tude 14 that forms mounting hole 12 on outer wall; The fuel injection valve device 16 that is fixed on this suction tude 14, uses to the firing chamber of not shown internal-combustion engine fuel supplying; Fuel supply pipe 18, described fuel supply pipe 18 is connected with described fuel injection valve device 16, be used for and be supplied to fuel injection valve device 16 from not shown fuel tank via fuel hose 17 supplied fuel, wherein, described fuel tank is stored and is useful on to the firing chamber of aforementioned internal-combustion engine supplied fuel.
In addition, suction tude 14 has the air inlet stream 20 that is communicated with the firing chamber of aforementioned internal-combustion engine, plays a part inlet air pathway.22 of throttle valve that open and close this air inlet stream 20 are bearing in the air inlet stream 20.
Fuel injection valve device 16 has: housing section 28 roughly cylindraceous, be inserted into spray nozzle part cylindraceous 30 on the end of mounting hole 12 sides, highlightedly be arranged on aforementioned spray nozzle part 30 opposition side ends on connecting tube 32.
And then, in the end of the side that is provided with connecting tube 32 highlightedly of housing section 28 lip part 48 being set, described lip part 48 is used for fuel injection valve device 16 is fixed to suction tude 14.On lip part 48, form bolt and insert through hole 50, bolt 24 is screwed into screw section 26, fuel injection valve device 16 is fixed to (with reference to Fig. 1 and Fig. 3) on the suction tude 14 by inserting through hole 50 via this bolt.
In addition, hold not shown electromagnetic actuator in the inside of housing section 28.This electromagnetic actuator for example is equipped with plastic coil carrier etc., drives the valve body 36 of spray nozzle part 30 along axial direction advance and retreat ground via not shown bar.Therefore, the power supply connector 52 to aforementioned electromagnetic actuator power supply usefulness is installed on housing section 28, this power supply is connected on the not shown driving mechanism with connector 52.
In addition, fuel supply pipe 18, be joint 44 and stopper 45, for example, also can use PA12 resin materials such as (polyimide 12) to constitute.
And, in the time will being connected to fuel supply pipe 18 on the fuel hose 17 integrally and being connected on the fuel injection valve device 16, via aforementioned stopper 45 connecting tube 32 of fuel injection valve device 16 is inserted into the inside of joint 44, the wide diameter portion 40 of this connecting tube 32 is coupled on the cooperation pawl 56 of stopper 45.And then, at this moment, be formed near the central part of stopper 45 jut 57 and contact with side 58a at hole portion 58 places and cooperate.
Therefore, when fuel injection valve device 16 was connected with fuel supply pipe 18, by wide diameter portion 40 and the mating reaction that cooperates pawl 56 and jut 57 with the side 58a of hole portion 58, stopper 45 was fixed, and stops joint 44 to come off from connecting tube 32 reliably.In addition, cooperate with not shown recess on the internal face that is formed on joint 44, stop the rotation of fuel supply pipe 18 and connecting tube 32 by the hemispheric projection 60 that is formed on the connecting tube 32.
In addition, be inserted at connecting tube 32 under the situation of joint 44 inside, because near the outer circumferential face the front end of connecting tube 32 contacts with two sealing components 64 along the inner peripheral surface setting of joint 44, so, be suitable for keeping the fluid tightness of the inside of joint 44.As such sealing component 64, can use the O ring.
In addition, fuel hose 17 forms by having flexible resin material, and in the time of between fuel tank that is configured to aforementioned internal-combustion engine and fuel injection valve device 16, its path can freely change.
Below, with reference to Fig. 2 this fuel hose 17 is described in detail.Fig. 2 A is the sectional view according to the fuel hose 17 of this form of implementation, Fig. 2 B be illustrated in be pressed into fuel hose 17 on the fuel hose insertion part 46 that is connected to joint 44 before, this fuel hose 17 is by the sectional view of the state of hole enlargement.
Shown in Fig. 2 A; fuel hose 17 is for example by forming with the bottom: the pipe 17a that the PA12 of wall thickness 0.55mm, internal diameter 2.5mm (polyimide 12) constitutes; be the interior pipe 17b that the ETFE (tetrafluoroethylene-ethylene copolymer) of inboard that stratiform is arranged on this pipe 17a, wall thickness 0.2mm constitutes, the protective tube 17c that the EPDM by wall thickness 1.0mm (ethylene propylene rubber) that is provided with for protective tube 17a is not subjected to the influence of ultraviolet ray, strong acid and chip etc. constitutes.In addition, in the time of on the fuel hose insertion part 46 that this fuel hose 17 is pressed into joint 44, shown in Fig. 2 B, will be from the fuel hose insertion part part hole enlargement of the 46 end specific length L that insert, form wide diameter portion 66.
Because fuel hose 17 uses resin material as described above, so, compare with widely used rubber material in the prior art, can suppress the deterioration that causes by heat and fuel significantly.
On the other hand, usually, compare with aforementioned rubber material, resin material elasticity is little.In addition, when the external diameter with fuel hose insertion part 46 forms greatlyyer than the internal diameter of fuel hose 17, for example, then can improve the tightness of fuel hose 17 and fuel hose insertion part 46, so be suitable if constitute about the internal diameter 2.5mm of pipe 17a.Here, in fuel hose 17 according to this form of implementation, by forming wide diameter portion 66 from the part hole enlargement of the end specific length L of fuel hose 17 in advance, can easily fuel hose insertion part 46 be inserted on the fuel hose 17, improve the tightness of fuel hose 17 and fuel hose insertion part 46, can improve these simultaneously and connect efficiency of operation.
In addition, as shown in Figure 1, slot part 68 is set in the form of a ring on the outer circumferential face of fuel hose insertion part 46, on this slot part 68,, for example disposes O shape ring as sealing component 69.Therefore, further improve the tightness of fuel hose 17 and fuel hose insertion part 46, simultaneously, can prevent since the fuel hose 17 that the creep that timeliness produces causes from the fuel hose insertion part 46 come off and fuel hose 17 and fuel hose insertion part 46 between leak of liquid etc.
Secondly, in the fuel injection system 10a of said structure, fuel injection valve device 16 and fuel supply pipe 18 are connected to step on the suction tude 14 with reference to Fig. 3 explanation.Fig. 3 explanation is the longitudinal section that part that the Connection Step of each structure member among the fuel injection system 10a is used cuts.In addition, in this case, in advance fuel hose 17 is connected with the joint 44 of fuel fuel supply line 18, constitutes an integral body.
At first, fuel injection valve device 16 is connected on the suction tude 14.In this case, the spray nozzle part 30 of fuel injection valve device 16 is inserted in the mounting hole 12 of suction tude 14, simultaneously, inserts through hole 50, bolt 24 is fastened on the screw section 26 via the bolt that is formed on the lip part 48.Therefore, can easily and reliably fuel injection valve device 16 be fixed on the suction tude 14.In addition, point in the air inlet stream 20, fuel can be ejected in the air inlet stream 20 from fuel injection valve device 16 by the jetburner 34 that will be formed on spray nozzle part 30 front ends.
Secondly, as mentioned above, fuel supply pipe 18 is connected on the connecting tube 32 of the fuel injection valve device 16 that is fixed on the suction tude 14.In this case, because fuel injection valve device 16 is fixed on the suction tude 14, so, can be easily and reliably connecting tube 32 is inserted into the inside of joint 44 via stopper 45.
In addition, at this moment, the wide diameter portion 40 of connecting tube 32 cooperates with the pawl 56 that cooperates of stopper 45, and then jut 57 cooperates with the side 58a of hole portion 58.Therefore, because stopper 45 is fixed, stops joint 44 to come off from connecting tube 32, so fuel injection valve device 16 couples together more reliably with fuel supply pipe 18.
As mentioned above, in fuel injection system 10a, fuel injection valve device 16 is fixed on the suction tude 14, is connected on the connecting tube 32 that is arranged on highlightedly on the fuel injection valve device 16 with joint 44 with fuel supply pipe 18 according to this form of implementation.Therefore, there is no need to be arranged on the fixed retainer that uses in the above-mentioned prior art constructions, can cut down the number of packages of parts, with its miniaturization and reduce production costs.
In addition, adopt under the situation of resin material at fuel hose 17, as mentioned above, fuel hose 17 is pressed into operation such as to connect in the fuel hose insertion part 46 be necessary, for example, in two-wheel vehicle that carries not shown internal-combustion engine and four-wheel wagon etc., implement this operation that is pressed into, be unfavorable from the viewpoint of operating efficiency.
Therefore, in this form of implementation, in advance fuel hose 17 and fuel supply pipe 18 are connected into an integral body, on the other hand,, can easily fuel supply pipe 18 be connected on the connecting tube 32 by fuel injection valve device 16 is fixed on the suction tude 14.Therefore, adopt under the situation of resin material, also can easily carry out the connection of fuel injection system 10a, can improve operating efficiency, simultaneously, can suppress significantly because the deterioration of the fuel hose 17 that heat and fuel cause at fuel hose 17.In addition and since by joint 44 can be easily from the fuel injection valve device 16 dismounting fuel hose 18, so, improved the installation capability and the maintainability of fuel injection valve device 16, further improved the pipe distribution operation efficient of fuel supply pipe 18.
Secondly, with reference to Fig. 5 and Fig. 6 second kind of form of implementation of the present invention is described.Fig. 5 represents the longitudinal section that the part according to the fuel injection system 10b of second kind of form of implementation of the present invention cuts.In addition, in Fig. 5, the reference number identical with the reference number shown in Fig. 1～Fig. 4 represented same or same structure, therefore, for having the same or same effect or the part of effect, omits its detailed description, below same.
Compare with fuel injection system 10a according to above-mentioned form of implementation according to the 10b of Fuelinjection nozzle system of this form of implementation, its difference part is: replace fuel injection valve device 16, be equipped with fuel injection valve device 72.And fuel injection valve device 72 is compared with fuel injection valve device 16, and its difference is: replace housing section 28, be equipped with housing section 74.
In addition, also can utilize a flange plate 80, this flange plate 80 is fixed on the slot part 76 of housing section 74, housing section 74 and flange plate 80 are formed an integral body by bonding or welding etc.
As mentioned above, according to the fuel injection system 10b of this form of implementation, owing to fuel injection valve device 72 is fixed on the suction tude 14 by flange plate 80, so, can cut down lip part 48, simplify the shape of fuel injection valve device 72, can reduce the manufacture cost of this fuel injection valve device 72.In addition,, just flange plate 80 can be separated with housing section 74 owing to only need bolt 24 26 is unclamped from the screw section, so, maintainability further improved.
Secondly, with reference to Fig. 7 the third form of implementation of the present invention is described.Fig. 7 longitudinal section that to be expression cut according to the part of the fuel injection system 10c of the third form of implementation of the present invention.
Compare with fuel injection system 10a according to the fuel injection system 10c of this form of implementation according to above-mentioned form of implementation, its difference is: replace fuel injection valve device 16, be equipped with fuel injection valve device 82, simultaneously, replace fuel supply pipe 18, be equipped with fuel supply pipe 84.And fuel injection valve device 82 is compared with fuel injection valve device 16, and its difference is: be equipped with the housing section 86 roughly cylindraceous with lip part 48.In addition, fuel supply pipe 84 is compared with fuel supply pipe 18, and its difference is: replace joint 44, be equipped with joint 90.
Near the hole of joint 90 one 58, form and have the lip part 94 that bolt inserts through hole 92.Lip part 48 in this lip part 94 and the above-mentioned fuel injection valve device 16 has roughly the same shape.
Therefore, in this form of implementation, after the spray nozzle part 30 with fuel injection valve device 82 is installed on the mounting hole 12 of suction tude 14, when connecting fuel supply pipe 84 with connecting tube 32, bolt via lip part 94 inserts through hole 92, by bolt 24, that fuel supply pipe 84 and fuel injection valve device 82 is fixing together.
As mentioned above, by fuel injection system 10c,, fuel supply pipe 84 and fuel injection valve device 82 are fixed on the suction tude 14 together by the lip part 94 that is formed on the joint 90 according to this form of implementation.Therefore,, can prevent from fuel supply pipe 84, to produce and shake or rock, for example, can omit fuel hose 17 is fixed to operation on the regulation member of aforementioned internal-combustion engine etc. at fuel supply pipe 84 joint place with fuel injection valve device 82.And then, owing to can cut down lip part 48, so, can simplify the shape of fuel injection valve device 82, can further reduce the manufacture cost of this fuel injection valve device 82.
Above, describe the present invention by above-mentioned form of implementation, still, the present invention is not limited thereto, under the situation that does not break away from purport of the present invention, certainly adopts various structures.
For example, the flexible pipe 17 that acts as a fuel as long as satisfy the desired characteristic of fuel hose of circulation such as the fuel that makes gasoline, does not have specific restriction, but the stratiform structure that is made of pipe 17a, interior pipe 17b and protective tube 17c that illustrates in above-mentioned form of implementation is preferred.In addition, the material of fuel hose 17 and fuel supply pipe 18,84 so long as resin material does not have specific restriction, is resin, fluorine resin etc. but preferably use polyimide.
In addition, fuel injection valve device 16 is installed on the suction tude 14, still, is not limited thereto, and the spray nozzle part 30 of fuel injection valve device 16 also can directly be installed in the inlet air pathway mode that above-mentioned firing chamber is led in sensing on cylinder head of this firing chamber etc.
Claims (7)
1. fuel injection system comprises:
Fuel hose,
End is connected to the fuel supply pipe on the aforementioned fuel hose integrally,
Fuel injection valve device, described fuel injection valve device is equipped with spray nozzle part, described spray nozzle part is connected on another end of aforementioned fuel supply pipe, is provided with the jetburner that will be supplied to the firing chamber of internal-combustion engine to use via connecting tube from the fuel that fuel tank process fuel hose imports
The inlet air pathway that is communicated with the previous combustion chamber,
Aforementioned spray nozzle part is installed towards aforementioned inlet air pathway ground; It is characterized in that,
Aforementioned fuel supply pipe possesses the joint that is connected with aforementioned connecting tube detachable ground,
Described fuel injection valve device comprises the spray nozzle part that is provided with jetburner, described spray nozzle part is installed on the suction tude that is communicated with the previous combustion chamber, also comprise connecting tube, described connecting tube is connected to an end and becomes on another end of a fuel supply pipe that integrally is connected with fuel hose
Described jetburner is used for the supply of fuel that is imported by described connecting tube via described fuel supply pipe from fuel tank is given the firing chamber of internal-combustion engine,
Described fuel injection valve device has the connecting tube on the outstanding end that is arranged on described spray nozzle part opposition side,
Described connecting tube has the wide diameter portion on the outer circumferential face that is formed on described connecting tube in the form of a ring,
Described wide diameter portion cooperates with the pawl that cooperates of described joint when described connecting tube is inserted into and is connected on the described joint of described fuel supply pipe.
2. fuel injection system as claimed in claim 1 is characterized in that,
Aforementioned fuel injection valve device, be provided with and give the stream of aforementioned jetburner via the supply of fuel that aforementioned connecting tube flows into, simultaneously, the housing section that aforementioned connecting tube is set, aforementioned spray nozzle part is set is equipped with on the end in the axial direction of aforementioned stream on another end
On aforementioned fuel supply pipe or aforementioned housing section, lip part is set, simultaneously, aforementioned fuel injection valve device is fixed on the aforementioned inlet air pathway via said flange portion.
3. fuel injection system as claimed in claim 1 or 2 is characterized in that,
Aforementioned fuel hose and aforementioned fuel supply pipe are made of resin material.
4. fuel injection system as claimed in claim 1 or 2 is characterized in that,
Aforementioned fuel hose and aforementioned fuel supply pipe connect into an integral body by being pressed into.
5. fuel injection system as claimed in claim 3 is characterized in that,
Aforementioned fuel hose and aforementioned fuel supply pipe connect into an integral body by being pressed into.
6. fuel injection valve device as claimed in claim 5 is characterized in that,
Aforementioned fuel injection valve device is provided with the stream that aforementioned jetburner is given in the supply of fuel that will flow into via aforementioned connecting tube, simultaneously, be equipped with housing section, this housing section is provided with aforementioned connecting tube on the end in the axial direction of aforementioned stream, aforementioned spray nozzle part is set on another end
Be provided with in aforementioned housing section aforementioned fuel injection valve device is fixed to the lip part of using on the aforementioned suction tude.
7. as claim 5 or 6 described fuel injection valve devices, it is characterized in that,
Aforementioned connecting tube and aforementioned fuel supply pipe detachable ground constitute.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2005377673A JP4344727B2 (en) | 2005-12-28 | 2005-12-28 | Fuel injector system |
| JP2005-377673 | 2005-12-28 | ||
| JP2005377673 | 2005-12-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1991161A CN1991161A (en) | 2007-07-04 |
| CN1991161B true CN1991161B (en) | 2011-06-08 |
Family
ID=37909759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006101711114A Active CN1991161B (en) | 2005-12-28 | 2006-12-22 | Fuel injection system and fuel injection valve device used in fuel injection system |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP1803928B1 (en) |
| JP (1) | JP4344727B2 (en) |
| CN (1) | CN1991161B (en) |
| ES (1) | ES2356557T3 (en) |
| MY (1) | MY144149A (en) |
| TW (1) | TW200724781A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164302A (en) * | 2017-09-29 | 2020-05-15 | 本田技研工业株式会社 | Injector mounting structure |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5502541B2 (en) * | 2010-03-19 | 2014-05-28 | 株式会社ケーヒン | Mounting structure of fuel injection valve |
| DE102016225695A1 (en) * | 2016-12-21 | 2018-06-21 | Robert Bosch Gmbh | Arrangement with at least one valve and a holder |
| JP7403572B2 (en) * | 2022-03-31 | 2023-12-22 | 本田技研工業株式会社 | fuel injection valve device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2614288A1 (en) * | 1976-04-02 | 1977-10-06 | Bayerische Motoren Werke Ag | Fuel injector fitting system - is for indirect fuel injection and has fixing clamp with widened bolt borings |
| DE3806906A1 (en) * | 1988-03-03 | 1989-09-14 | Opel Adam Ag | Device for fixing a fuel injection valve injecting into an intake port of an internal combustion engine |
| US6488001B2 (en) * | 1999-03-29 | 2002-12-03 | Honda Giken Kogyo Kabushiki Kaisha | Engine with soundproof cover of injector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4405111B2 (en) * | 2001-08-06 | 2010-01-27 | 株式会社ケーヒン | Fuel injector holding device |
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2005
- 2005-12-28 JP JP2005377673A patent/JP4344727B2/en not_active Expired - Fee Related
-
2006
- 2006-10-31 TW TW095140279A patent/TW200724781A/en not_active IP Right Cessation
- 2006-12-22 MY MYPI20064760 patent/MY144149A/en unknown
- 2006-12-22 EP EP20060127006 patent/EP1803928B1/en not_active Expired - Fee Related
- 2006-12-22 ES ES06127006T patent/ES2356557T3/en active Active
- 2006-12-22 CN CN2006101711114A patent/CN1991161B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2614288A1 (en) * | 1976-04-02 | 1977-10-06 | Bayerische Motoren Werke Ag | Fuel injector fitting system - is for indirect fuel injection and has fixing clamp with widened bolt borings |
| DE3806906A1 (en) * | 1988-03-03 | 1989-09-14 | Opel Adam Ag | Device for fixing a fuel injection valve injecting into an intake port of an internal combustion engine |
| US6488001B2 (en) * | 1999-03-29 | 2002-12-03 | Honda Giken Kogyo Kabushiki Kaisha | Engine with soundproof cover of injector |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111164302A (en) * | 2017-09-29 | 2020-05-15 | 本田技研工业株式会社 | Injector mounting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1803928B1 (en) | 2010-11-17 |
| TW200724781A (en) | 2007-07-01 |
| EP1803928A3 (en) | 2009-03-18 |
| EP1803928A2 (en) | 2007-07-04 |
| CN1991161A (en) | 2007-07-04 |
| MY144149A (en) | 2011-08-15 |
| JP4344727B2 (en) | 2009-10-14 |
| TWI326739B (en) | 2010-07-01 |
| JP2007177711A (en) | 2007-07-12 |
| ES2356557T3 (en) | 2011-04-11 |
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