CN101981304B - Mounting structure for fuel injection device - Google Patents
Mounting structure for fuel injection device Download PDFInfo
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- CN101981304B CN101981304B CN2009801108627A CN200980110862A CN101981304B CN 101981304 B CN101981304 B CN 101981304B CN 2009801108627 A CN2009801108627 A CN 2009801108627A CN 200980110862 A CN200980110862 A CN 200980110862A CN 101981304 B CN101981304 B CN 101981304B
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- China
- Prior art keywords
- fuel injection
- bolt
- air suction
- assembly department
- suction way
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- 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.)
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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
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M57/00—Fuel-injectors combined or associated with other devices
- F02M57/04—Fuel-injectors combined or associated with other devices the devices being combustion-air intake or exhaust valves
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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
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/02—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits concerning induction conduits
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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 invention provides a mounting structure for a fuel injection device. A fuel injection device includes a fuel injection valve having a front end inserted in an air intake passage body with an annular seal member provided in between. In a mounting structure for the fuel injection device, a mounted section fastened by a single bolt to a mounting receiving section provided to the air intake passage body is provided to the fuel injection device and an engaging section engaging with the air intake passage body side in order to prevent co-rotation of the mounted section in the fastening operation is also provided to the fuel injection device. A circular tube-shaped axial force receiving member (77) for allowing the bolt (74) to pass therethough and receiving axial fastening force at opposite ends thereof is axially rotatably inserted through at least either the mounting receiving section (71) or the mounted section (72). By this, torque is not applied to the bolt even if an external force is applied to the fuel injection device side.
Description
Technical field
The present invention relates to a kind of mounting structure of fuel injection system, be provided with the mounting hole that links to each other with described air suction way at the air suction way organizator that forms air suction way, comprise with and described air suction way organizator between accompany the sealing component of ring-type the mode fuel injection system that inserts the Fuelinjection nozzle in the described mounting hole be provided with the section of being mounted, this be mounted section by single bolton in the assembly department that arranges at described air suction way organizator, and be provided with described air suction way at fuel injection system and form the engagement portion that the side engages, prevent from carrying out common rotation when fastening by described bolt.
Background technique
By patent documentation 1 is known following structure arranged: on the sucking pipe that forms air suction way via the chimeric front end that Fuelinjection nozzle is arranged of sealing component, and sucking pipe between the carriage of clamping Fuelinjection nozzle by the position of bolton at described sucking pipe.
Patent documentation 1: the real public clear 63-3426 communique of Japan
But, in above-mentioned patent documentation 1 in the disclosed structure owing to form the structure that sucking pipe and this two side of carriage is applied the fastening axial force of bolt, therefore when having External Force Acting on carriage, on the bolt easily effect torque is arranged.
Summary of the invention
The present invention In view of the foregoing proposes, and in the effect of fuel injection system side external force is arranged even its purpose is to provide a kind of, also can not act on the mounting structure of the fuel injection system of torque on the bolt.
In order to finish above-mentioned purpose, the invention provides a kind of mounting structure of fuel injection system, be provided with the mounting hole that links to each other with described air suction way at the air suction way organizator that forms air suction way, comprise with and described air suction way organizator between accompany the sealing component of ring-type the mode fuel injection system that inserts the Fuelinjection nozzle in the described mounting hole be provided with the section of being mounted, this be mounted section by single bolton in the assembly department that is arranged on the described air suction way organizator, and be provided with the engagement portion that engages with described air suction way formation side at fuel injection system, prevent from carrying out common rotation when fastening by described bolt, the mounting structure of described fuel injection system is characterised in that, makes described bolt insert axial force cylindraceous logical and born the fastening axial force of this bolt by two ends and bears member and can be inserted through rotatably among described assembly department and the described at least one party who is mounted section around axis.
In addition, on the basis of described First Characteristic, Second Characteristic of the present invention is, described fuel injection system is made of described Fuelinjection nozzle and joint cap, this joint cap with described air suction way organizator between the mode of this Fuelinjection nozzle of clamping the rear portion of Fuelinjection nozzle is liquid-tightly chimeric and be connected fuel distribution tube, describedly be mounted section and described engagement portion is arranged on the described joint cap.
Described first or the basis of Second Characteristic on, the of the present invention the 3rd is characterised in that, one end has with an end butt that connects described assembly department and the described described axial force that is mounted section and bear member, engages and can be inserted through described axial force with the bolt of described assembly department and the described side's butt that is mounted section, the hole enlargement head that engages and bear in the member, with described axial force bear member the other end butt, engage and can be screwed together in described assembly department and the described the opposing party's butt that is mounted section, the nut that engages the other end of described bolt.
In described the first～three on the basis of each described feature, the of the present invention the 4th is characterised in that, described axial force bear member can around axis be inserted through rotatably among described assembly department and the described side who is mounted section and be pressed into described assembly department and described the opposing party who is mounted section in.
On the basis of described the 3rd feature, the of the present invention the 5th is characterised in that, can approach configuration with the outer surface of described assembly department butt, the described nut that engages and described air suction way organizator, thereby stop described nut from the disengaging of described bolt,, opposed anticreep approaching from the hole enlargement head of axial foreign side and described bolt is arranged on other parts on every side of described air suction way organizator with wall.
Described first or the basis of two features on, the of the present invention the 6th is characterised in that, described axial force is born member can be inserted through described assembly department and a described side who is mounted section rotatably, makes to be inserted through described axial force and to bear the nut of the screw threaded in the member and inlay and be incorporated into described assembly department and described the opposing party who is mounted section.
On the basis of described the 6th feature, the of the present invention the 7th is characterised in that, from the opposed anticreep of hole enlargement head of axial foreign side and described bolt with wall be arranged on described air suction way organizator around other parts on.
In described the first～seven on the basis of each described feature, the of the present invention the 8th is characterised in that, avoids being provided with described assembly department as the described air suction way organizator of sucking pipe with being connected in the engagement portion of the throttle valve body on this air suction way organizator at described air suction way organizator.
In described the first～eight on the basis of each described feature, the of the present invention the 9th is characterised in that, the outstanding teat that is provided with the opposing party's Elastic Contact of described assembly department and the described opposed faces that is mounted section integratedly at least one party of the described assembly department that is made of synthetic resin and the described opposed faces that is mounted section.
The invention effect
In accordance with a first feature of the invention, because the axial force cylindraceous of bearing the fastening axial force of bolt by two ends is born member and can is inserted through rotatably assembly department and be mounted at least one party of section around axis, this bolt is used for being fastened in the section of being mounted that the fuel injection system that comprises Fuelinjection nozzle arranges the assembly department that arranges at the air suction way organizator, even therefore External Force Acting is arranged in the fuel injection system side, also can rotate to absorb external force by the section of being mounted, thereby can not act on torque on the bolt, even at assembly department and be mounted between the section axial play that produces bolt, this shakes also and can absorb by sandwiching the elastic force that is installed in the sealing component between air suction way organizator and the Fuelinjection nozzle.In addition, because fuel injection system is not to be securely fixed on the air suction way organizator, so the Move that shakes of Fuelinjection nozzle is difficult to be delivered to the air suction way side, and noise is alleviated.
In addition, according to Second Characteristic of the present invention, since fuel injection system by Fuelinjection nozzle with the rear portion of Fuelinjection nozzle liquid-tightly chimeric joint cap consist of, and be mounted section joint cap setting, therefore joint cap also is installed on the air suction way organizator simultaneously with Fuelinjection nozzle, thereby can reduce number of components, in addition, even at assembly department and be mounted between the section axial play that produces bolt, this is loosening also can to absorb by the pressure of the fuel passage that forms between Fuelinjection nozzle and joint cap.
According to the 3rd feature of the present invention, the bolt that one end has with the axial force that connects assembly department and be mounted section is born an end butt of member, the hole enlargement head that engages is inserted through axial force and bears in the member, and the other end of bearing the other end butt of member, the nut that engages and bolt with axial force screws togather, thereby the simple structure that can form by the common parts that use axial force to bear member, bolt and nut, when making torque can not be applied on the bolt, will be mounted section and assembly department is fastening, and can realize cost.
According to the 4th feature of the present invention, because axial force is born the side that member can be inserted through rotationally assembly department and be mounted section, and be pressed into assembly department and be mounted the opposing party of section, therefore can bear member and composition group at assembly department and the opposing party's assembling axial force that is mounted section, assembling procedure is oversimplified.
According to the 5th feature of the present invention, owing to approach configuration with the nut of described screw threaded and the outer surface of air suction way organizator, thereby stop it from the disengaging of bolt, and be arranged on other parts different with the air suction way organizator with wall from the opposed anticreep of hole enlargement head of bolt from axial foreign side, therefore can prevent reliably coming off of bolt disengaging and nut.
According to the 6th feature of the present invention, owing to bear and insert logical bolt in the member and screw togather with the nut of inlaying the opposing party who is incorporated into assembly department and is mounted section can being inserted through rotatably assembly department and being mounted axial force among the side of section, therefore when bolts and nuts are screwed togather, need not tool using and just press and to avoid nut rotation, can make the assembling procedure simplification.
According to the 7th feature of the present invention, owing to be arranged on air suction way organizator other parts in addition with wall from the opposed anticreep of hole enlargement head of axial foreign side and bolt, can prevent reliably that therefore bolt breaks away from.
According to the 8th feature of the present invention, owing to avoid as the air suction way organizator of sucking pipe and the engagement portion of throttle valve body assembly department being set at the air suction way organizator, therefore the maintenance of fuel injection system can be in the situation of the coupled condition of not removing sucking pipe and throttle valve body, carried out, thereby the maintainability of fuel injection system can be improved.
And then, according to the 9th feature of the present invention, since the assembly department that is consisted of by synthetic resin and be mounted section opposed faces outstanding teat and the assembly department that arranges of at least one party and be mounted the opposing party's Elastic Contact of the opposed faces of section, therefore at assembly department and be mounted can not produce between the section loosening, thereby can suppress vibration.
Description of drawings
Fig. 1 is the first embodiment's two-wheeled side view.(the first embodiment)
Fig. 2 is the part of vehicle frame and the side view of internal-combustion engine.(the first embodiment)
Fig. 3 is the major component amplification view of body of the internal-combustion engine and suction system.(the first embodiment)
Fig. 4 is the 4-4 line amplification view of Fig. 3.(the first embodiment)
Fig. 5 is the 5-5 line sectional view of Fig. 4.(the first embodiment)
Fig. 6 is the major component enlarged view of Fig. 3.(the first embodiment)
Fig. 7 is the stereogram of sucking pipe and fuel injection system.(the first embodiment)
Fig. 8 is the sucking pipe observed from the direction different from Fig. 7 and the stereogram of fuel injection system.(the first embodiment)
Fig. 9 be Fig. 69 to view.(the first embodiment)
Figure 10 is the 10-10 line amplification view of Fig. 8.(the first embodiment)
Figure 11 is the 11-11 line sectional view of Figure 10.(the first embodiment)
Figure 12 is the second embodiment's the sectional view corresponding with Figure 10.(the second embodiment)
Figure 13 is the 3rd embodiment's the sectional view corresponding with Fig. 9.(the 3rd embodiment)
Figure 14 is the 4th embodiment's the sectional view corresponding with Fig. 9.(the 4th embodiment)
Figure 15 is the 5th embodiment's the sectional view corresponding with Fig. 9.(the 5th embodiment)
Symbol description:
45 air suction ways
46 sucking pipes as the air suction way organizator
63 mounting holes
64 sealing components
65 Fuelinjection nozzles
66 joint caps
67 fuel injection systems
68 fuel hoses that act as a fuel pipe arrangement
71 assembly departments
72 are mounted section
73 engagement portions
74 bolts
74a hole enlargement head
77,81,82 bear the sleeve pipe of member as axial force
78,83 nuts
79 anticreep walls
84 teats
Embodiment
Below, based on embodiments of the invention shown in the drawings embodiments of the present invention are described.
[embodiment 1]
Fig. 1～Figure 11 is the figure of the expression first embodiment of the present invention.
At first, in Fig. 1 and Fig. 2, this two-wheeled vehicle frame F possesses: the front fork 11 and the head tube 13 of steering handle 12 supportings for turning to that axle are supported front-wheel WF; The main car frame 14 that extends from this head tube 13 to the rear lower side; The pairing left and right seat rail 15 that front end engages with the inclined to one side intermediate portion in the rear portion of main car frame 14 and ladder ground extends to the back upper place The pivot plate 16 of being combined and extending downwards with the rear portion of described main car frame 14.
The front end of swing arm 17 can be bearing on the described pivot plate 16 by fulcrum 18 with swinging up and down, is supported with trailing wheel WR in the rear axle of this swing arm 17, is provided with retractile posterior bumper 19 between swing arm 17 and seat rail 15.And, the fuel tank 20 that is configured in the top of trailing wheel WR is bearing in described seat rail 15 with the containing box 21 that is configured in the place ahead of this fuel tank 20 ... on, what cover fuel tank 20 and containing box 21 from the top is bearing in described seat rail 15 with seat 22 by bus ... on.
The suspend engine main body 23 of quartastroke engine E of up and down two positions of the engine lifting bracket 90 on the intermediate portion that is fixed in described main car frame 14 and described pivot plate 16.This engine main body 23 possesses: bent axle 29 supportings that will extend along the width direction of vehicle frame F are for rotating freely and be built-in with the crankcase 24 of not shown speed changer; Make cylinder-bore axis C lean forward approximate horizontal and with the cylinder block 25 of crankcase 24 combinations; Cylinder head 26 with these cylinder block 25 combinations.Will be outstanding from described crankcase 24 in the place ahead of described fulcrum 18 from the output shaft 27 of the power of described speed changer output, transmit to trailing wheel WR via chain drive 28 from the power of this output shaft 27.In addition, in the place ahead of described engine lifting bracket 90, and on the top of described crankcase 24 starting motor 92 is installed.
Simultaneously with reference to Fig. 3, chimeric in the cylinder barrel 30 on being formed at described cylinder block 25 have a piston 31 that can slide, and piston 31 is connected with described bent axle 29 via connecting rod 91.In addition, between cylinder block 25 and cylinder head 26, be formed with firing chamber 32 in the face of the top of described piston 31.
Be provided with the intakeport 33 of sidewall opening at an upper portion thereof and at the relief opening 34 of lower sides opening in described cylinder head 26, be equipped with Aspirating valves 35 and the outlet valve 36 that can carry out on-off action in described cylinder head 26, Aspirating valves 35 switches the connection to described firing chamber 32, the partition of described intakeport 33, and outlet valve 36 switches the connection to described firing chamber 32, the partition of described relief opening 34.And, drive valve device 37 that Aspirating valves 35 and outlet valve 36 open and close and possess single camshaft 38, suction side and the exhaust side rocking arm 39,40 that Aspirating valves 35 and outlet valve 36 share, suction side and exhaust side rocking arm 39,40 rotations by this camshaft 38 swing, thereby drive respectively Aspirating valves 35 and outlet valve 36 switchings, and this valve device 37 is provided on the described cylinder head 26.
Lower sides in cylinder head 26 is connected with the vent systems 41 that is communicated with described relief opening 34, and this vent systems 41 possesses: upstream extremity is connected with the lower sides of described cylinder head 26 and the below by engine main body 23 and extended outlet pipe 42 rearward; Be configured in the right-hand side of described trailing wheel WR and the exhaust silencer 43 (with reference to Fig. 1) that is connected with the downstream of described outlet pipe 42.
Upper portion side wall in described cylinder head 26 is connected with the suction system 44 that is communicated with described intakeport 33, this suction system 44 possesses: as the sucking pipe 46 of air suction way organizator, it has for sucking the air suction way 45 of gas to described intakeport 33 guiding, and by synthetic resin for example polyphenylene sulfide form tubular, and its downstream is installed on the cylinder head 26; Closure district 47, its upstream extremity with this sucking pipe 46 is connected; Air-strainer 48, it is supported on main car frame 14 anterior of described vehicle frame F and is connected with the upstream extremity in described closure district 47, and wherein, closure district 47 and air-strainer 48 are via connecting tube 49 connections of rubber system.
The mode that described sucking pipe 46 bloats towards the rear with the upper portion side wall from cylinder head 26 is crooked and form, and is connected with the closure district 47 of the top that is configured in cylinder head 26.This closure district 47 has the air suction way 50 that is communicated with the air suction way 45 of described sucking pipe 46, and the closure 51 that can regulate the aperture of this air suction way 50 can be supported on closure district 47 rotationally.
The downstream of described sucking pipe 46 with and the mode that between the smooth junction plane 52 that upper side forms, is folded with the sealing component 53 of ring-type of described cylinder head 26 be installed on the junction plane 52 of described cylinder head 26, the lip part 54 that is located at integratedly the downstream of sucking pipe 46 in the mode of stretching out to foreign side's side is fastened on the described junction plane 52.
Simultaneously with reference to Fig. 4 and Fig. 5, the upstream extremity of described sucking pipe 46 with and the smooth junction plane 55 that forms in sucking pipe 46 side end faces in described closure district 47 between be folded with the sealing component 56 of ring-type mode be installed on the described junction plane 55, upstream extremity at sucking pipe 46 is provided with the lip part 57 that stretches out to foreign side's side integratedly, on the end of described sucking pipe 46 sides in closure district 47, be provided with integratedly lip part 58 corresponding with described lip part 57 and that stretch out outside side, form the part of described junction plane 55, lip part 57,58 by bolt 59,59 is fastening.
In addition, in described closure district 47, be provided with idling system path (ス ロ one is path) 61 in the mode of walking around closure 51, this idling system path 61 makes upstream extremity to air suction way 50 openings in closure district 47 at the closure 51 that is supported on than axle in this closure district 47 by upstream side, and by the downstream side downstream is communicated with than described closure 51 with described air suction way 50, and the downstream 61a of this idling system path 61 is than described junction plane 55 openings of the inner sides of seal groove 60 place to closure district 47, and sealing groove 60 is formed on the end face of the junction plane 55 opposed described sucking pipes 46 in described closure district 47 and described sealing component 56 is installed.
And, invading to idling system path 61 from the carbon of the micro-gap that produces between described sucking pipe 46 and the described closure district 47 etc. in order to do one's utmost to prevent, the downstream 61a of idling system path 61 forms the groove shape that bends to crank-like.
In Fig. 6～Fig. 9, on sucking pipe 46, be provided with integratedly the mounting pipe section 62 with the axis that points to described intakeport 33, be provided with the mounting hole 63 that links to each other with air suction way 45 in this mounting pipe section 62, the front end of Fuelinjection nozzle 65 with and sucking pipe 46 between accompany the sealing component 64 of ring-type mode insert in the described mounting hole 63.
Intermediate portion at described mounting hole 63 is formed with towards the stepped part 63a of the ring-type of foreign side, be formed with the stepped part 65a of ring-type in the periphery of Fuelinjection nozzle 65, the described sealing component 64 that the periphery that accompanies interior week and this Fuelinjection nozzle 65 between the stepped part 65a of this ring-type and the described stepped part 63a is connected airtight and the internal surface of periphery and mounting hole 63 connects airtight.
By described Fuelinjection nozzle 65 and by synthetic resin for example the joint cap 66 that consists of of polyamide consist of fuel injection system 67, this joint cap 66 is liquid-tightly chimeric with the rear portion of this Fuelinjection nozzle 65.In addition, at engagement portion, the location 66a that joint cap 66 is provided with that outside side is stretched out and engages with the 65a of joiner section that described Fuelinjection nozzle 65 possesses, the rear portion of Fuelinjection nozzle 65 so that location engagement portion 66a to be sticked in mode and the joint cap 66 of the 65a of joiner section liquid-tightly chimeric.
The downstream of fuel hose 68 of pipe arrangement of acting as a fuel is connected with described joint cap 66.As shown in Figure 1, the upstream extremity of this fuel hose 68 is connected with pump unit 69 on being arranged on fuel tank 20, the top of described fuel hose 68 side by described containing box 21 and described engine main body 23 from described pump unit 69 and simultaneously to extend to described joint cap 66 along the seat rail 15 of described vehicle frame F and the mode of main car frame 14.
Be provided with the section of being mounted 72 at described fuel injection system 67, this is mounted section 72 and is anchored on the assembly department 71 that arranges at sucking pipe 46 by single bolt 74, and be provided with the engagement portion 73 that engages with described sucking pipe 46 sides at described fuel injection system 67, prevent from jointly rotating when fastening being undertaken by described bolt 74.
Described assembly department 71 is arranged at the upper portion side wall of sucking pipe 46 integratedly in the mode of the side that is positioned at Fuelinjection nozzle 65, upper surface at described assembly department 71 is formed with smooth fastening surface 75, this fastening surface 75 is along the plane of inserting the axis quadrature of the Fuelinjection nozzle 65 in the described mounting hole 63 with front end, the described joint cap 66 of fuel injection system 67 be provided with from above with the fastening surface 75 opposed sections 72 that are mounted of described assembly department 71.In addition, be formed with locking recess 76 in the side of described assembly department 71, lock recess 76 from the described section 72 extended described engagement portions 73 that are mounted inserting with the mode that assembly department 71 engages, the width d1 of locking recess 76 is set as slightly larger than the width d2 of described engagement portion 73, so that lock a little gap of generation between recess 76 and the engagement portion 73 at this.
And, be arranged on assembly department 71 on the sucking pipe 46 avoid the engagement portion in sucking pipe 46 and closure district 47, namely avoid lip part 57,58 utilize bolt 59 ... fastening position and dispose.
In Figure 10, at described assembly department 71 and describedly be mounted at least one party of section 72, insert in described assembly department 71 and described two sides that are mounted section 72 in this first embodiment and be connected with and can cylindraceously bear the sleeve pipe 77 of member as axial force around what axis rotate, this sleeve pipe 77 makes described bolt 74 insert the fastening axial forces of leading to and being born this bolt 74 by two ends.This sleeve pipe 77 has than the described assembly department 71 on the direction of the axis of described bolt 74 and described thickness and the slightly large axial length that is mounted section 72 and by the metal of high rigidity and forms.
Described bolt 74 is that an end has hole enlargement head 74a and is inserted through the member of described sleeve pipe 77, one end butt of this hole enlargement head 74a and described sleeve pipe 77, engage and can be with described assembly department 71 and a described side (in this embodiment for the being mounted section 72) butt that is mounted section 72, engage, screw togather in the other end from the outstanding described bolt 74 of sleeve pipe 77 with the other end butt of described sleeve pipe 77, engage also can with described assembly department 71 and described the opposing party's (being assembly department 71 in this embodiment) butt of section 72, the nut 78 that engages of being mounted.
In addition, on other parts around the sucking pipe 46, in this embodiment be provided with in closure district 47 from the hole enlargement head 74a of foreign side and described bolt 74 approach, opposed anticreep usefulness wall 79.In addition, as shown in figure 11, can approach configuration at the outer surface of sucking pipe 46 with described assembly department 71 butts, the described nut 78 that engages, thereby prevent that it breaks away from from bolt 74.
Next, effect to this first embodiment describes, the front end of Fuelinjection nozzle 65 with and sucking pipe 46 between accompany the sealing component 64 of ring-type mode be inserted in the mounting hole 63 that sucking pipe 46 arranges, wherein, this mounting hole 63 links to each other with air suction way 45, be provided with the section of being mounted 72 at the fuel injection system 67 that comprises this Fuelinjection nozzle 65, this is mounted section 72 and is anchored on the assembly department 71 that arranges at described sucking pipe 46 by single bolt 74, and be provided with the engagement portion 73 that engages with described sucking pipe 46 sides at fuel injection system 67, prevent that in the common rotation of being undertaken by bolt 74 when fastening making bolt 74 plug in sleeve pipe cylindraceous 77 logical and born the fastening axial force of this bolt 74 by two ends can be inserted through rotatably assembly department 71 and be mounted at least one party in the section 72 around axis, be two sides in this embodiment.
Thus, even External Force Acting is arranged in fuel injection system 67 sides, the small gap value that also can be rotated in by being mounted section 72 generation between locking recess 76 and the engagement portion 73 absorbs external force, therefore can not act on torque on the bolt 74, even at assembly department 71 and be mounted between the section 72 axial play that produces bolt 74, this loosening also can be by the elastic force absorption that is installed in the sealing component 64 between sucking pipe 46 and the Fuelinjection nozzle 65.And because fuel injection system 67 is not to be securely fixed on the sucking pipe 46, so the vibration of Fuelinjection nozzle 65 is difficult to be delivered to air suction way 45 sides, and noise alleviates.
Yet, fuel injection system 67 is made of Fuelinjection nozzle 65 and joint cap 66, wherein, joint cap 66 with and described sucking pipe 46 between the mode of this Fuelinjection nozzle 65 of clamping the rear portion of Fuelinjection nozzle 65 is liquid-tightly chimeric, and being mounted section 72 and engagement portion 73 is arranged on the joint cap 66, therefore, joint cap 66 also side by side is installed to sucking pipe 46 with Fuelinjection nozzle 65, thereby can reduce components number, in addition, even at assembly department 71 and be mounted between the section 72 axial play that produces bolt 74, this is loosening also can to absorb by pressure of the fuel passage that forms between Fuelinjection nozzle 65 and joint cap 66.
In addition, one end has and connects assembly department 71 and be mounted an end butt of the sleeve pipe 77 of section 72, the engaging and can with described section's 72 butts that are mounted, the bolt 74 of the hole enlargement head 74a of engaging is inserted through in the described sleeve pipe 77, the other end butt with sleeve pipe 77, the engaging and can with described assembly department 71 butts, the nut 78 of engaging screws togather with the other end of bolt 74, therefore, can be by using sleeve pipe 77, the simple structure that the common parts of bolt 74 and nut 78 form, when making torque can not be applied on the bolt 74, will be mounted section 72 and be anchored on assembly department 71, and can realize cost.
In addition, can approach configuration with the outer surface of assembly department 71 butts, the nut 78 that engages and described sucking pipe 46, thereby prevent that it is from the disengaging of bolt 74, from the hole enlargement head 74a of axial foreign side and described bolt 74 approach, opposed anticreep is arranged in the closure district 47 as other parts on every side of sucking pipe 46 with wall 79, therefore, can prevent reliably the disengaging of bolt 74 or coming off of nut 78.
And, being arranged on assembly department 71 on the described sucking pipe 46 avoids this sucking pipe 46 and disposes with being connected in the engagement portion in the closure district 47 on this sucking pipe 46, therefore, can in the situation of the coupled condition of not removing sucking pipe 46 and closure district 47, carry out the maintenance of fuel injection system 67, thereby can improve the maintainability of fuel injection system 67.
[embodiment 2]
As the second embodiment of the present invention, as shown in figure 12, also can determine as follows the relative configuration of nut 78 and sucking pipe 46, namely, screw togather with bolt 74 and shown in dotted line with the nut 78 of can assembly department 71 butts, engaging, when keeping the state that screws togather with bolt 74 to away from a side of assembly department 71 lentamente after the mobile a certain degree with sucking pipe 46 butts.Like this, also screw togather with bolt 74 at the state lower nut 78 of nut 78 with sucking pipe 46 butts, thereby stop nut 78 to break away from from bolt 74.
[embodiment 3]
Figure 13 is the figure of the expression third embodiment of the present invention, the part corresponding with above-mentioned the first embodiment is only marked same reference marks illustrate, and omits detailed explanation.
Described bolt 74 1 ends have with an end butt of described sleeve pipe 81, engage and can be mounted section's 72 butts, the hole enlargement head 74a that engages and be inserted through in the described sleeve pipe 81 with described, with the other end butt of described sleeve pipe 81, engage and can be screwed together in from the other end of the outstanding described bolt 74 of sleeve pipe 81 with described assembly department 71 butts, the nut 78 that engages.
According to the 3rd embodiment, because sleeve pipe 81 is pressed into assembly department 71, therefore sleeve pipe 81 can be assembled in assembly department 71 and composition group, assembling procedure is oversimplified.
[embodiment 4]
Figure 14 is the figure of the expression fourth embodiment of the present invention, the part corresponding with above-mentioned the first embodiment is only marked same reference marks illustrate, and omits detailed explanation.
In addition, although not shown, same with the first embodiment, be arranged on anticreep, the arranged opposite approaching from the hole enlargement head 74a of axial foreign side and bolt 74 with wall 79 in the closure district 47.
According to the 4th embodiment, when bolt 74 and nut 83 are screwed togather, need not tool using and press and just can avoid nut 83 to rotate, can make the assembling procedure simplification.
[embodiment 5]
Figure 15 is the figure of the expression fifth embodiment of the present invention, the part corresponding with above-mentioned the first embodiment is only marked same reference marks illustrate, and omits detailed explanation.
The bolt 74 that one end has hole enlargement head 74a is inserted through described sleeve pipe 77, wherein hole enlargement head 74a with will be arranged on the assembly department 71 on the sucking pipe 46 and an end butt of the sleeve pipe 77 that the section that is mounted 72 on the joint cap 66 of fuel injection system 67 that is arranged on connects, the engaging and can with described section's 72 butts that are mounted, engaging, the other end butt with sleeve pipe 77, the engaging and can with described assembly department 71 butts, the nut 78 of engaging is screwed together in the other end of bolt 74, and at assembly department 71 and be mounted at least one party of opposed faces of section 72, for example give prominence to integratedly on the fastening surface 75 of assembly department 71 in the 5th embodiment and be provided with the teat 84 that surrounds in the form of a ring sleeve pipe 77, described teat 84 namely is mounted section's 72 side Elastic Contact with the opposing party of described opposed faces.
According to the 5th embodiment, make assembly department 71 and be mounted do not produce between the section 72 loosening, thereby can suppress the vibration.
More than, embodiments of the invention have been described, but the present invention is not limited to above-described embodiment, in the situation that does not break away from its purport, can carry out various design alterations.
For example, illustrated in the above-described embodiments and taked sucking pipe 46 as the situation of air suction way organizator, but the present invention is equally applicable to the situation of throttle valve body as the use of air suction way organizator.
Claims (7)
1. the mounting structure of a fuel injection system, be provided with the mounting hole (63) that links to each other with described air suction way (45) at the air suction way organizator (46) that forms air suction way (45), comprise with and described air suction way organizator (46) between accompany the sealing component (64) of ring-type the mode fuel injection system (67) that inserts the Fuelinjection nozzle (65) in the described mounting hole (63) be provided with the section of being mounted (72), this is mounted section (72) and is anchored on the assembly department (71) that is arranged on the described air suction way organizator (46) by single bolt (74), and be provided with the engagement portion (73) that engages with described air suction way organizator (46) side at fuel injection system (67), prevent from carrying out common rotation when fastening by described bolt (74), the mounting structure of described fuel injection system is characterised in that
Make described bolt (74) insert logical and bear member (77,81,82) by the axial force cylindraceous that the fastening axial force of this bolt (74) is born at two ends and can be inserted through rotatably among described assembly department (71) and the described at least one party who is mounted section (72) around axis
One end has and connects described assembly department (71) and the described described axial force that is mounted section (72) and bear member (77,81) an end butt, the engaging and can with described assembly department (71) and the described side's butt that is mounted section (72), the bolt (74) of the hole enlargement head (74a) of engaging is inserted through described axial force and bears member (77,81) in, bear member (77 with described axial force, 81) the other end butt, the engaging and can with described assembly department (71) and the described the opposing party's butt that is mounted section (72), the nut (78) of engaging is screwed together in the other end of described bolt (74).
2. the mounting structure of fuel injection system according to claim 1 is characterized in that,
Described fuel injection system (67) is made of described Fuelinjection nozzle (65) and joint cap (66), this joint cap (66) with described air suction way organizator (46) between the mode of this Fuelinjection nozzle of clamping (65) rear portion of Fuelinjection nozzle (65) is liquid-tightly chimeric and be connected fuel distribution tube (68), describedly be mounted section (72) and described engagement portion (73) are arranged on the described joint cap (66).
3. the mounting structure of fuel injection system according to claim 1 and 2 is characterized in that,
Described axial force bear member (81) can around axis be inserted through rotatably among described assembly department (71) and the described side who is mounted section (72) and be pressed into described assembly department (71) and described the opposing party who is mounted section (72) in.
4. the mounting structure of fuel injection system according to claim 1 is characterized in that,
Can approach configuration with the outer surface of described assembly department (71) butt, the described nut (78) that engages and described air suction way organizator (46), thereby stop described nut (78) from the disengaging of described bolt (74),, opposed anticreep approaching from the hole enlargement head (74a) of axial foreign side and described bolt (74) is arranged on other parts on every side of described air suction way organizator (46) with wall (79).
5. the mounting structure of fuel injection system according to claim 1 and 2 is characterized in that,
Be arranged on other parts on every side of described air suction way organizator (46) with wall (79) from the opposed anticreep of hole enlargement head (74a) of axial foreign side and described bolt (74).
6. the mounting structure of fuel injection system according to claim 1 and 2 is characterized in that,
Avoid being provided with described assembly department (71) as the described air suction way organizator (46) of sucking pipe with being connected in the engagement portion of the throttle valve body (47) on this air suction way organizator (46) at described air suction way organizator (46).
7. the mounting structure of fuel injection system according to claim 1 and 2 is characterized in that,
The outstanding teat (84) that is provided with the opposing party's Elastic Contact of described assembly department (71) and the described opposed faces that is mounted section (72) integratedly at least one party of the described assembly department (71) that is consisted of by synthetic resin and the described opposed faces that is mounted section (72).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008-082912 | 2008-03-27 | ||
| JP2008082912A JP5142782B2 (en) | 2008-03-27 | 2008-03-27 | Mounting structure of fuel injection device |
| PCT/JP2009/053419 WO2009119234A1 (en) | 2008-03-27 | 2009-02-25 | Mounting structure for fuel injection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101981304A CN101981304A (en) | 2011-02-23 |
| CN101981304B true CN101981304B (en) | 2013-05-01 |
Family
ID=41113440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801108627A Active CN101981304B (en) | 2008-03-27 | 2009-02-25 | Mounting structure for fuel injection device |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5142782B2 (en) |
| CN (1) | CN101981304B (en) |
| AR (1) | AR070538A1 (en) |
| BR (1) | BRPI0910114B1 (en) |
| WO (1) | WO2009119234A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2955362B1 (en) * | 2010-01-19 | 2012-02-10 | Mann & Hummel Gmbh | DEVICE FOR SUPPLYING A MULTICYLIND FUEL ENGINE WITH INDIRECT INJECTION |
| JP4670996B1 (en) * | 2010-04-23 | 2011-04-13 | スズキ株式会社 | Engine intake system passage structure |
| JP6853129B2 (en) * | 2017-07-06 | 2021-03-31 | 臼井国際産業株式会社 | Injector holder |
| JP2020043734A (en) * | 2018-09-13 | 2020-03-19 | 本田技研工業株式会社 | Stator core for rotary electric machine and rotary electric machine |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755095A (en) * | 2004-09-08 | 2006-04-05 | 日产自动车株式会社 | The fuel supply device that is used for fuel injection engine |
| CN101146993A (en) * | 2005-03-23 | 2008-03-19 | 株式会社京浜 | Holding member for fuel injection valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60131666U (en) * | 1984-02-10 | 1985-09-03 | マツダ株式会社 | Fuel injection valve mounting structure for fuel injection engines |
| JPH0469402A (en) * | 1990-07-09 | 1992-03-04 | Atsugi Unisia Corp | Construction for mounting part of resin made part |
| JPH102266A (en) * | 1996-06-17 | 1998-01-06 | Toyota Motor Corp | Mounting structure for nozzle clamp |
| JP2000345943A (en) * | 1999-06-02 | 2000-12-12 | Suzuki Motor Corp | Mounting structure for fuel distributing pipe |
-
2008
- 2008-03-27 JP JP2008082912A patent/JP5142782B2/en active Active
-
2009
- 2009-02-25 WO PCT/JP2009/053419 patent/WO2009119234A1/en active Application Filing
- 2009-02-25 BR BRPI0910114-4A patent/BRPI0910114B1/en active IP Right Grant
- 2009-02-25 CN CN2009801108627A patent/CN101981304B/en active Active
- 2009-02-27 AR ARP090100692A patent/AR070538A1/en not_active Application Discontinuation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1755095A (en) * | 2004-09-08 | 2006-04-05 | 日产自动车株式会社 | The fuel supply device that is used for fuel injection engine |
| CN101146993A (en) * | 2005-03-23 | 2008-03-19 | 株式会社京浜 | Holding member for fuel injection valve |
Non-Patent Citations (4)
| Title |
|---|
| JP平4-69402A 1992.03.04 |
| JP昭60-131666U 1985.09.03 |
| JP特开2000-345943A 2000.12.12 |
| JP特开平10-2266A 1998.01.06 |
Also Published As
| Publication number | Publication date |
|---|---|
| BRPI0910114B1 (en) | 2021-01-12 |
| WO2009119234A1 (en) | 2009-10-01 |
| CN101981304A (en) | 2011-02-23 |
| BRPI0910114A2 (en) | 2019-03-06 |
| JP5142782B2 (en) | 2013-02-13 |
| JP2009235989A (en) | 2009-10-15 |
| AR070538A1 (en) | 2010-04-14 |
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