CN104234896A - Conveying pipe - Google Patents
Conveying pipe Download PDFInfo
- Publication number
- CN104234896A CN104234896A CN201410256846.1A CN201410256846A CN104234896A CN 104234896 A CN104234896 A CN 104234896A CN 201410256846 A CN201410256846 A CN 201410256846A CN 104234896 A CN104234896 A CN 104234896A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- tubular connector
- projection
- delivery pipe
- reference line
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M55/00—Fuel-injection apparatus characterised by their fuel conduits or their venting means; Arrangements of conduits between fuel tank and pump F02M37/00
- F02M55/02—Conduits between injection pumps and injectors, e.g. conduits between pump and common-rail or conduits between common-rail and injectors
- F02M55/025—Common rails
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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
- F02M69/465—Arrangement of fuel conduits, e.g. with valves for maintaining pressure in the pipes after the engine being shut-down of fuel rails
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/852—Mounting of fuel injection apparatus provisions for mounting the fuel injection apparatus in a certain orientation, e.g. markings or notches
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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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/853—Mounting of fuel injection apparatus involving use of quick-acting mechanism, e.g. clips
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/855—Mounting of fuel injection apparatus using clamp elements or fastening means, e.g. bolts or screws
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/856—Mounting of fuel injection apparatus characterised by mounting injector to fuel or common rail, or vice versa
-
- 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
- F02M2200/00—Details of fuel-injection apparatus, not otherwise provided for
- F02M2200/85—Mounting of fuel injection apparatus
- F02M2200/857—Mounting of fuel injection apparatus characterised by mounting fuel or common rail to engine
Abstract
A conveying pipe can improve operationality of manufacturing operation of a conveyin pipe and position a fuel injection valve to a desired position in a rotary direction of a central axis. A protrusion (16) of a tubular connector (10) is provided with an arc (16A) externally connected to the tubular connector (10) and a pair of sloping edges (16B, 16C) which linearly extend from end points (21, 22) of the arc (16A) to a mutually intersected direction. The protrusion (16) is configured to pass through a central shaft (23) of the tubular connector (10) and takes a straight line extending in a direction orthogonal to a cylinder column direction as a reference line (24), and, taking the reference line (24) as a reference, the arc (16A) is asymmetric relative to the reference line (24). The sloping edges (16B, 16C) are configured at a region which passes through the end points (21, 22) of the arc (16A) and is between two imaginary lines (26, 27) parallel to the reference line (24).
Description
Technical field
The present invention relates to delivery pipe, particularly relate to the delivery pipe with tubular support being equipped on vehicle, tubular support has the projection preventing Fuelinjection nozzle from rotating.
Background technique
In the past, the internal-combustion engine being equipped on vehicle is equipped with delivery pipe with the direction identical with bank of cylinder direction near cylinder head, this delivery pipe is equipped with the Fuelinjection nozzle to each cylinder injection fuel, this Fuelinjection nozzle and the tubular connector linking of main part being located at delivery pipe.
But, when adopting the Fuelinjection nozzle of porous type etc., when the rotational position (direction) of the central shaft around Fuelinjection nozzle is different, fuel-injection condition to suction port or firing chamber can change, therefore sometimes negative effect is caused to the combustion regime such as composition, fuel efficiency of Exhaust Gas, therefore, when Fuelinjection nozzle is assembled to delivery pipe, need to be undertaken adjusting by each cylinder to make the direction of Fuelinjection nozzle towards desired direction.
Therefore, such as, as recorded in patent documentation 1, be formed with the square projection as positioning part at the tubular connector of the main part being welded in delivery pipe, by making the direction of Fuelinjection nozzle be positioned at desired direction this projection intercalating dye injection valve.
On the other hand, when multiple tubular connector device is assigned in the main part of delivery pipe, utilize fixture multiple tubular connector is temporarily fixed on the main part of delivery pipe after be welded in main part.Specifically, as shown in figure 16, under the state of the recess 53a projection 52 of the peripheral part being located at each tubular connector 51 being embedded fixture 53, tubular connector 51 is held in fixture 53, after in this condition tubular connector 51 being temporarily fixed on the main part 54 of delivery pipe, welding machine is utilized tubular connector 51 to be welded in the main part 54 of delivery pipe.
prior art document
patent documentation
Patent documentation 1: JP 2003-120466 publication
Summary of the invention
the problem that invention will solve
But, according to this existing delivery pipe, the projection 52 of tubular connector 51 is square, therefore in the not same directional situation in direction of the unfixing i.e. projection 52 of tubular connector 51 in the direction of each Fuelinjection nozzle, after tubular connector 51 is welded in main part 54, when being pulled down from tubular connector 51 by fixture 53, projection 52 can catch on the recess 53a of fixture 53, cannot pull down fixture 53 from tubular connector 51.
Therefore, utilize multiple fixture to keep tubular connector 51, or as shown in figure 17, need the position of the fixture 53 between tubular connector 51 to arrange multiple with fixture 53 independently inserting member 55, before pulling down fixture 53, pull down inserting member 55 from fixture 53 as shown by arrows.Therefore, the formation of fixture 53 becomes complicated, causes the manufacture of delivery pipe to become trouble, the problem that the workability that there is the manufacturing operation of delivery pipe worsens.
The present invention pays close attention to the problems referred to above and completes, and object is to provide a kind of delivery pipe, can improve the workability of the manufacturing operation of delivery pipe, and Fuelinjection nozzle is positioned desired position in the sense of rotation around this central shaft.
for the scheme of dealing with problems
1st mode of the present invention is a kind of delivery pipe, comprising: main part, and it extends on the bank of cylinder direction of internal-combustion engine, multiple tubular connector, it is located at main part along bank of cylinder direction, links with the multiple Fuelinjection nozzles being formed with the 1st projection at peripheral part, and the 2nd projection, it is formed at the peripheral part of tubular connector, by having the fixture with the recess of the 2nd protrusions snap, after tubular connector is temporarily fixed on main part, tubular connector and main part are welded, 1st projection and the 2nd protrudes through engagement portion engaging, by having the rotation limiting member of above-mentioned engagement portion, Fuelinjection nozzle is connected to tubular connector, above-mentioned Fuelinjection nozzle is not rotated around the central shaft of above-mentioned tubular connector, the feature of delivery pipe is, a pair hypotenuse that 2nd projection has the circular arc external with tubular connector and extends point-blank on cross one another direction from the end points of circular arc, 2nd projection is configured to, using the central shaft by tubular connector and the straight line extended on the direction orthogonal with bank of cylinder direction as reference line, with this reference line for benchmark makes above-mentioned circular arc be asymmetric relative to reference line, and, the hypotenuse of the 2nd projection is configured in each end points by circular arc and the region between 2 articles of imaginary lines parallel with reference line.
As the 2nd mode of the present invention, also can be provided with 2 tubular connectors at same cylinder, at least 1 of being located in the 2nd projection of same cylinder rolls tiltedly to adjacent tubular connector relative to reference line.
As the 3rd mode of the present invention, the 1st projection also can be formed as hypotenuse with respect to the triangle of the imaginary line symmetry of the central shaft of tubular connector and the point of bisection of circular arc or trapezoidal.
invention effect
Like this, according to above-mentioned 1st mode, a pair hypotenuse that 2nd projection of tubular connector has the circular arc external with tubular connector and extends point-blank on cross one another direction from the end points of circular arc, 2nd projection is configured to, using the central shaft by tubular connector and the straight line extended on the direction orthogonal with bank of cylinder direction as reference line, with this reference line for benchmark makes above-mentioned circular arc be asymmetric relative to reference line, 1st projection and the 2nd protrudes through engagement portion engaging, by having the rotation limiting member of engagement portion, Fuelinjection nozzle is connected to tubular connector.Therefore, Fuelinjection nozzle can be positioned position desired in the sense of rotation of this central shaft.
In addition, the hypotenuse of the 2nd projection of tubular connector is configured in each end points by circular arc and the region between 2 articles of imaginary lines parallel with reference line, therefore can prevent when loading and unloading for tubular connector is temporarily fixed on the fixture of main part relative to tubular connector, the 2nd projection catches on the recess of fixture.
Therefore, tubular connector just easily can be welded in main part by the fixture that complexity need not be adopted as in the past to form, multiple fixture, can improve the workability of the manufacturing operation of delivery pipe.
According to above-mentioned 2nd mode, be configured to 2 tubular connectors and be located at same cylinder, at least 1 of being located in the 2nd projection of same cylinder rolls tiltedly relative to reference line to adjacent tubular connector, therefore, when tubular connector is assemblied in main part in bank of cylinder direction with short interval, need multiple tubular connector to utilize fixture to be temporarily fixed on main part.
In this case, also Fuelinjection nozzle can be positioned the position desired by the sense of rotation around this central shaft, and tubular connector just easily can be welded in main part by the fixture that complexity need not be adopted as in the past to form, multiple fixture, can improve the workability of the manufacturing operation of delivery pipe.
According to above-mentioned 3rd mode, 2nd projection is formed as hypotenuse with respect to the triangle of the imaginary line symmetry of the central shaft of tubular connector and the point of bisection of circular arc or trapezoidal, therefore when making the 2nd projection be positioned at the either direction of a side of circumferencial direction or the opposing party of circumferencial direction relative to reference line, when being used for tubular connector to be temporarily fixed on the fixture of main part relative to the handling of tubular connector, can prevent the 2nd projection from catching on the recess of fixture.
Therefore, tubular connector also easily can be welded in main part by the fixture that complexity need not be adopted as in the past to form, multiple fixture, effectively can improve the workability of the manufacturing operation of delivery pipe further.
Accompanying drawing explanation
Fig. 1 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the left side plan view of the internal-combustion engine possessing delivery pipe.
Fig. 2 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the External view of cylinder head and the intake manifold seen from rear side.
Fig. 3 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the longitudinal section of cylinder head and intake manifold.
Fig. 4 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the plan view of delivery pipe and Fuelinjection nozzle.
Fig. 5 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the exploded perspective view of delivery pipe and Fuelinjection nozzle.
Fig. 6 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the figure representing state Fuelinjection nozzle being assemblied in delivery pipe.
Fig. 7 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the figure representing state Fuelinjection nozzle being assemblied in delivery pipe.
Fig. 8 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the External view of clip.
Fig. 9 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the External view of the clip seen from the direction different from Fig. 8.
Figure 10 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the worm's eye view of delivery pipe.
Figure 11 is the figure of the mode of execution that delivery pipe of the present invention is shown, is to represent the figure utilizing fixture cylinder connector to be temporarily fixed on the state of main part.
Figure 12 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the figure representing the cylinder connector with the projection that other is formed.
Figure 13 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the figure representing the cylinder connector with the projection that other is formed.
Figure 14 is the figure of the mode of execution that delivery pipe of the present invention is shown, is the figure representing state Fuelinjection nozzle being assemblied in the delivery pipe that other is formed.
Figure 15 is the figure of the mode of execution that delivery pipe of the present invention is shown, is to represent to utilize fixture cylinder connector to be temporarily fixed on the figure of the state of main part to having other delivery pipe formed.
Figure 16 is the figure of the mode of execution that delivery pipe of the present invention is shown, represents that utilizing is that existing cylinder connector is temporarily fixed on the figure of the state of main part by fixture.
Figure 17 is the figure of the mode of execution that delivery pipe of the present invention is shown, is to represent to utilize other fixture that existing cylinder connector is temporarily fixed on the figure of the state of main part.
description of reference numerals
8: delivery pipe; 9: main part; 10: tubular connector; 11: Fuelinjection nozzle; 13: clip (rotation limiting member); 13d:(engagement portion); 15: projection (the 1st projection); 16,41,42: projection (the 2nd projection); 16A, 41A, 42A: circular arc; 16B, 16C, 41B, 41C, 42B, 42C: hypotenuse; 21,22: end points; 23: central shaft; 24: reference line; 25,26: imaginary line; 31: fixture; 31b: recess.
Embodiment
Below, utilize accompanying drawing that the mode of execution of delivery pipe of the present invention is described.
Fig. 1 ~ Figure 15 is the figure of the delivery pipe that an embodiment of the invention are shown.
First formation is described.In Fig. 1 ~ Fig. 3, the motor 1 as internal-combustion engine has the cylinder being built-in with not shown piston, possesses: the cylinder block 2 being provided with the crankcase 3 supporting bent axle 6 rotatably integratedly; Be located at the oil sump 4 of the bottom of cylinder block 2; And be located at the cylinder head 5 on top of cylinder block 2.
Be equipped with intake manifold 7 in cylinder head 5, the air that never illustrated suction tude sucks by intake manifold 7 is distributed to each cylinder by the suction port 5a of cylinder head 5 and is imported.In addition, the intake manifold 7 of present embodiment is provided with 4 air intake branch 7a ~ 7d, and motor 1 forms 4 cylinder engines.In addition, be provided with not shown suction valve in cylinder head 5, this suction valve makes suction port 5a opening and closing along with the rotation of not shown intake cam.
In addition, be provided with delivery pipe 8 in cylinder head 5, this delivery pipe 8 extends along the bank of cylinder direction of left and right directions in fig. 2, is configured to comprise: the main part 9 being imported fuel by fuel under high pressure pipe arrangement 8A; And tubular connector 10, it is located at the bottom of main part 9, is connected with Fuelinjection nozzle 11.
Be provided with 2 tubular connectors 10 and Fuelinjection nozzle 11 by each cylinder, the motor 1 of present embodiment as shown in Figure 4, Figure 5, possesses 8 tubular connectors 10 and Fuelinjection nozzle 11.
At this, as shown in Figure 3, the side be located in 2 Fuelinjection nozzles 11 of same cylinder is located at the top of suction port 5a, the opposing party in Fuelinjection nozzle 11 is located at the inboard (right side of the width direction of vehicle) in the paper direction of illustrated suction port 5a, is located at the top of the not shown suction port adjacent with suction port 5a.That is, the Fuelinjection nozzle 11 of present embodiment is located at a pair suction port place arranged by each cylinder respectively.
Why like this Fuelinjection nozzle 11 is located at each suction port 5a, such as, mainly contains following reason.
To in the motor 1 of burner oil in suction port, it is desirable to suppress fuel deposition in the inwall of suction port 5a, and the spray-hole of Fuelinjection nozzle 11 from firing chamber more away from, then the ratio being attached to the inwall of suction port 5a in the fuel ejected is higher.
Have in the motor 1 of 2 suction valves at every 1 cylinder, suction port 5a branches into 2, is therefore configured with 1 Fuelinjection nozzle 11 at the branch than suction port 5a by upstream side.Therefore, the ratio being attached to the fuel of the inwall of suction port 5a uprises.
And if Fuelinjection nozzle 11 is configured at respectively 2 suction port 5a places of 1 cylinder, then the position of Fuelinjection nozzle 11 is close to firing chamber, and fuel deposition can be suppressed in the inwall of suction port 5a.
And, when the state running less than the maximum lift of the opposing party suction valve of the maximum lift of the side's suction valve in the suction valve making 2 suction port 5a opening and closing, make the fuel injection timing of 2 Fuelinjection nozzles 11, emitted dose different, thus can seek to improve fuel efficiency, promote burning etc.
Be provided with 2 bracket 9a at main part 9, inserted to be formed in the bolt hole of this bracket 9a by bolt 14 and bracket 9a is fixed on cylinder head 5, delivery pipe 8 is fixed in cylinder head 5 thus.
Fuelinjection nozzle 11 is formed at the inside of Fuelinjection nozzle main body 11A, possesses: fuel passage, and it is communicated with main part 9 by tubular connector 10; Needle type valve, it is built in Fuelinjection nozzle main body 11A, is located in fuel passage; And electromagnetic coil, it is built in Fuelinjection nozzle main body 11A, the energising of needle type valve is connected and cutting-off controlling, utilize needle type valve that the spray-hole on the top being formed at Fuelinjection nozzle 11 is communicated with or non-interconnected with fuel passage, be configured to utilize needle type valve to make spray-hole and fuel passage be connected state, thus to the firing chamber burner oil of cylinder.
In addition, the power connector 12 be connected with the not shown power-feed connector on the top being located at not shown wire harness is equipped with at Fuelinjection nozzle main body 11A.Power connector 12 is connected with the terminal of power-feed connector, and is electrically connected with o, and o, when transmitting electrical signal from power-feed connector to power connector 12, controls needle type valve and spray-hole is communicated with fuel passage.
In addition, not shown O type ring is provided with at the peripheral part of the upper end portion of Fuelinjection nozzle main body 11A, when Fuelinjection nozzle main body 11A is connected with tubular connector 10 by the inside of Fuelinjection nozzle main body 11A being inserted tubular connector 10, utilize O type ring seal tubular connector 10 to prevent from tubular connector 10 spilled fuel.
In addition, shown in Fig. 4, Fig. 5, be provided with 3 bracket 9b at main part 9, the wire harness of power-feed connector is fixed in this bracket 9b.
As shown in Fig. 5 ~ Fig. 7, be formed with lip part 10A in the bottom of tubular connector 10, be formed with the projection 16 as the 2nd projection at the peripheral part of this lip part 10A.In addition, the peripheral part on the top of Fuelinjection nozzle main body 11A is formed with projection 15 as the 1st projection, and tubular connector 10 is connected by clip 13 in the mode of projection 15,16 in the central axis direction overlap of Fuelinjection nozzle 11 with Fuelinjection nozzle 11.
As shown in Figure 8, Figure 9, form the clip 13 rotating limiting member and possess a pair clamping part 13b linked by connecting piece 13a, be formed with the opening portion 13c engaged with the lip part 10A of tubular connector 10 at clamping part 13b respectively.In addition, be formed with the engagement groove 13d as engagement portion between clamping part 13b, projection 15,16 can engage with this engagement groove 13d.
In the mode that clamping part 13b separates, clamping part 13b is expanded at this clip 13, after making the projection 16 of tubular connector 10 and the projection 15 of Fuelinjection nozzle 11 be sticked in engagement groove 13d, by in the lip part 10A insertion opening portion 13c of tubular connector 10, thus utilize clamping part 13b to keep tubular connector 10 and Fuelinjection nozzle 11.
Now, in the lip part 10A insertion opening portion 13c of tubular connector 10, and the projection 15 of Fuelinjection nozzle 11 is connected to the upper-end surface of connecting piece 13a, the axial direction of Fuelinjection nozzle 11 relative to tubular connector 10 can be located thus, prevent it from departing from from tubular connector 10.
In addition, projection 15,16 engages with engagement groove 13d, thus projection 15,16 is located in the mode of the central axis direction overlap at tubular connector 10, and the circumferencial direction two ends of projection 15,16 are connected to engagement groove 13d, therefore Fuelinjection nozzle 11 is connected to tubular connector, and Fuelinjection nozzle 11 is not rotated around the central shaft of tubular connector 10.
On the other hand, as shown in Figure 10, the projection 16 of the tubular connector 10 of present embodiment has: the circular arc 16A external with tubular connector 10; And from a pair hypotenuse 16B, 16C that the end points 21,22 of circular arc 16A extends point-blank to cross one another direction.
That is, the projection 16 of present embodiment is formed as hypotenuse 16B, 16C triangle with respect to imaginary line 25 symmetry of the central shaft 23 of tubular connector 10 and the point of bisection of circular arc 16A.
In addition, projection 16 is configured to, using the central shaft 23 by tubular connector 10 and the straight line extended on the direction orthogonal with bank of cylinder direction as reference line 24, with this reference line 24 for benchmark makes circular arc 16A relative to reference line 24 for asymmetric.Specifically, for asymmetric, so-called circular arc 16A refers to that above-mentioned imaginary line 25 does not overlap with reference line 24 relative to reference line 24.In other words, refer to that imaginary line 25 overlaps with reference line 24 relative to reference line 24 symmetry.
In addition, hypotenuse 16B, 16C of projection 16 are configured in the end points 21,22 by circular arc 16A and the region between 2 imaginary lines 26,27 parallel with reference line 24.In addition, being located at 2 tubular connectors 10 of same cylinder respective projections 16 with equidirectional rolls tiltedly to adjacent tubular connector 10 relative to reference line 24.
Therefore, Fuelinjection nozzle 11 is located in the position desired by sense of rotation around this central shaft and is assemblied in tubular connector 10.
At this, why Fuelinjection nozzle 11 is positioned the position desired by the sense of rotation around this central shaft, because when adopting Fuelinjection nozzle 11 of porous type, when Fuelinjection nozzle 11 is when the rotational position (direction) of central shaft is different, can change to the fuel-injection condition of suction port 5a or firing chamber, therefore can to the composition of Exhaust Gas, the combustion regimes such as fuel efficiency impact, and sometimes according to the direction of power connector 12, be difficult to the space of guaranteeing for connecting power-feed connector to power connector 12, arrange the space of wire harness.Therefore, the assembling of the main part 9 of Fuelinjection nozzle 11 pairs of delivery pipes 8 needs to adjust, and makes to make the direction of Fuelinjection nozzle 11 towards desired direction by each cylinder.
According to this requirement, the direction of the projection 16 being located at same cylinder is set to equidirectional by the tubular connector 10 of present embodiment, and is different directions by the direction setting being configured at the projection 16 of mutually adjacent cylinder.
Following illustration.
As shown in figure 11, fixture 31 is utilized multiple tubular connector 10 to be assembled to the operation of the main part 9 being fixed on manufacturing installation to the delivery pipe 8 of present embodiment.
In fig. 11, fixture 31 has the shape identical with the peripheral shape of tubular connector 10, the curved part 31a that the part possessing the outer circumferential face of tubular connector 10 abuts and the recess 31b that projection 16 engages.In fig. 11, utilize fixture 31 to assemble 4 tubular connectors 10, but also can assemble 8 tubular connectors 10 to 1 fixture 31, also can assemble 4 tubular connectors 10 respectively to 2 fixtures 31.In addition, the position of this recess 31b is previously formed in the position corresponding to the direction of the projection 16 of tubular connector 10.In addition, although not shown, but be formed with the mounting portion for loading tubular connector 10 in the bottom of fixture 31, tubular connector 10 can not be fallen from fixture 31.
Multiple tubular connector 10 is being assembled in the operation of main part 9, projection 16 is being inserted recess 31b and the outer circumferential face of tubular connector 10 is connected to curved part 31a multiple tubular connector 10 is assembled to fixture 31.
Then, utilize fixture 31 tubular connector 10 to be temporarily anchored to the bottom of the main part 9 being fixed on manufacturing installation, utilize not shown welding machine that tubular connector 10 is welded to main part 9 in this temporary fixed state.Then, pull down fixture 31 from tubular connector 10, thus, the manufacturing operation of delivery pipe 8 terminates.In addition, the recess 31b of the fixture 31 of present embodiment is formed as a face 31c of the inner peripheral surface making recess 31b and the handling direction A of fixture 31 is equidirectional.
On the other hand, when Fuelinjection nozzle 11 is assembled to delivery pipe 8, the top of Fuelinjection nozzle main body 11A is engaged with tubular connector 10.Then, utilize clip 13 fixed fuel injection valve 11 and tubular connector 10, thus Fuelinjection nozzle 11 is fixed on the positioning on the central axis direction and sense of rotation of tubular connector 10.Then, the top of Fuelinjection nozzle 11 inserted the valve opening being formed at cylinder head 5 and utilize bolt 4 that delivery pipe 8 is fixed on cylinder head 5.
As mentioned above, the projection 16 of the tubular connector 10 of present embodiment has: the circular arc 16A external with tubular connector 10, and from the end points 21 of circular arc 16A, the 22 a pair hypotenuse 16B extended point-blank to cross one another direction, 16C, projection 16 is configured to, using the central shaft 23 by tubular connector 10 and the straight line extended on the direction orthogonal with bank of cylinder direction as reference line 24, with this reference line 24 for benchmark makes circular arc 16A relative to reference line 24 for asymmetric, projection 15, 16 are engaged by engagement groove 13d, by having the clip 13 of engagement groove 13d, Fuelinjection nozzle 11 is connected to tubular connector 10, Fuelinjection nozzle 11 is not rotated around the central shaft of tubular connector 10.Therefore, Fuelinjection nozzle 11 can be positioned the position desired by the sense of rotation around this central shaft.
In addition, in the projection 16 of tubular connector 10, hypotenuse 16B, 16C of projection 16 are configured in the end points 21,22 by circular arc 16A and the region between 2 imaginary lines 26,27 parallel with reference line 24, therefore, when loading and unloading for tubular connector 10 is temporarily fixed on the fixture 31 of main part 9 relative to tubular connector 10, can prevent projection 16 from catching on the recess 31b of fixture 31.
Therefore, tubular connector 10 just easily can be welded in main part 9 by the fixture that complexity need not be adopted as in the past to form, multiple fixture, can improve the workability of the manufacturing operation of delivery pipe 8.
In addition, same cylinder is located at by the tubular connector 10 of 2 present embodiments, at least 1 of being located in the projection 16 of same cylinder rolls tiltedly relative to reference line 24 to adjacent tubular connector 10, therefore, when tubular connector 10 is assemblied in main part 9 by Shang Yiduan interval, bank of cylinder direction, need to utilize fixture 31 that multiple tubular connector 10 is temporarily fixed on main part 9.In addition, the projection 16 that also can be configured to be located at same cylinder rolls tiltedly to adjacent tubular connector 10 relative to reference line 24 respectively.
Like this, same cylinder is located at the tubular connector 10 of 2 present embodiments, when at least 1 of being located in the projection 16 of same cylinder rolls oblique formation relative to reference line 24 to adjacent tubular connector 10, also Fuelinjection nozzle 11 can be positioned the position desired by the sense of rotation around this central shaft, and when being loaded and unloaded relative to tubular connector 10 by fixture 31, can prevent projection 16 from catching on the recess 31b of fixture 31.Therefore, easily tubular connector 10 can be welded in main part 9, the workability of the manufacturing operation of delivery pipe 8 can be improved.
In addition, in the projection 16 of the tubular connector 10 of present embodiment, hypotenuse 16B, 16C are formed as the triangle of imaginary line 25 symmetry with respect to the central shaft 23 of tubular connector 10 and the point of bisection of circular arc 16A.Therefore, being positioned at when making projection 16 when being in the either direction of a side of circumferencial direction or the opposing party of circumferencial direction relative to reference line 24, can preventing when being loaded and unloaded relative to tubular connector 10 by fixture 31 projection 16 from catching on the recess 31b of fixture 31 in main part 9.Therefore, easily tubular connector 10 can be welded in main part 9, the workability of the manufacturing operation of delivery pipe 8 can be improved.
In addition, the projection 16 of present embodiment is formed as triangle, but also can as shown in figure 12, and projection 41 is formed as trapezoidal.Specifically, also the projection 41 as the 2nd projection being formed at the peripheral part of tubular connector 10 can be formed as hypotenuse 41B, 41C imaginary line 25 symmetry trapezoidal with respect to the central shaft 23 of tubular connector 10 and the point of bisection of circular arc 41A.
In addition, as shown in figure 13, projection 42 also can be formed as chevron.Specifically, also the projection 42 as the 2nd projection being formed at the peripheral part of tubular connector 10 can be formed as hypotenuse 42B, 42C chevron with respect to imaginary line 25 symmetry of the central shaft 23 of tubular connector 10 and the point of bisection of circular arc 42A.
In addition, be respectively equipped with tubular connector 10 and the Fuelinjection nozzle 11 of 2 present embodiments by each cylinder, but also as shown in figure 14,1 tubular connector 10 and Fuelinjection nozzle 11 can be respectively equipped with by each cylinder.In this case also as shown in figure 15, after tubular connector 10 is temporarily fixed on main part 9, when tubular connector 10 being welded in main part and being pulled down from tubular connector 10 by fixture 31, can prevent projection 16 from catching on the recess 31b of fixture 31.
Therefore, the complicated fixture, the multiple fixture that form need not be adopted as in the past, easily can pull down fixture from the tubular connector 10 had towards the projection 16 of different direction, easily tubular connector 10 can be welded in main part 9.Therefore, the workability of the manufacturing operation of delivery pipe 8 can be improved.
Although disclose embodiments of the present invention, known enforcement on the basis do not departed from the scope of the present invention is changed for a person skilled in the art.All this corrections and equivalent are contained in appended claim by intention.
Claims (3)
1. a delivery pipe, comprising: main part, and it extends on the bank of cylinder direction of internal-combustion engine; Multiple tubular connector, it is located at aforementioned body portion along above-mentioned bank of cylinder direction, links with the multiple Fuelinjection nozzles being formed with the 1st projection at peripheral part; And the 2nd projection, it is formed at the peripheral part of above-mentioned tubular connector,
By having the fixture with the recess of above-mentioned 2nd protrusions snap, after above-mentioned tubular connector is temporarily fixed on aforementioned body portion, above-mentioned tubular connector and aforementioned body portion are welded,
Above-mentioned 1st projection and the above-mentioned 2nd protrudes through engagement portion engaging, by having the rotation limiting member of above-mentioned engagement portion, above-mentioned Fuelinjection nozzle is connected to above-mentioned tubular connector, above-mentioned Fuelinjection nozzle is not rotated around the central shaft of above-mentioned tubular connector
The feature of above-mentioned delivery pipe is,
A pair hypotenuse that above-mentioned 2nd projection has the circular arc external with above-mentioned tubular connector and extends point-blank on cross one another direction from the end points of above-mentioned circular arc,
Above-mentioned 2nd projection is configured to, using the central shaft by above-mentioned tubular connector and the straight line extended on the direction orthogonal with above-mentioned bank of cylinder direction as reference line, with this reference line for benchmark makes above-mentioned circular arc be asymmetric relative to said reference line, further, the hypotenuse of above-mentioned 2nd projection is configured in the region of each end points also and between 2 articles of imaginary lines of said reference line parallel by above-mentioned circular arc.
2. delivery pipe according to claim 1, is characterized in that,
Same above-mentioned cylinder is located at by 2 above-mentioned tubular connectors, and the above-mentioned tubular connector being located in above-mentioned 2nd projection of same above-mentioned cylinder at least 1 adjacent relative to said reference alignment rolls tiltedly.
3., according to claim 1 or delivery pipe according to claim 2, it is characterized in that,
Above-mentioned 2nd projection is formed as above-mentioned hypotenuse with respect to the triangle of the imaginary line symmetry of the central shaft of above-mentioned tubular connector and the point of bisection of above-mentioned circular arc or trapezoidal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-127751 | 2013-06-18 | ||
| JP2013127751A JP6119446B2 (en) | 2013-06-18 | 2013-06-18 | Delivery pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104234896A true CN104234896A (en) | 2014-12-24 |
| CN104234896B CN104234896B (en) | 2016-11-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410256846.1A Active CN104234896B (en) | 2013-06-18 | 2014-06-10 | Conveying pipe |
Country Status (3)
| Country | Link |
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| JP (1) | JP6119446B2 (en) |
| CN (1) | CN104234896B (en) |
| DE (1) | DE102014211136B4 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6389813B2 (en) * | 2015-09-29 | 2018-09-12 | 日立オートモティブシステムズ株式会社 | Rotation restricting member and assembly. |
| US11274642B1 (en) | 2021-08-31 | 2022-03-15 | Denso International America, Inc. | Fuel rail assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120466A (en) * | 2002-10-22 | 2003-04-23 | Sanoh Industrial Co Ltd | Connector for fuel injection nozzle, and manufacturing method thereof |
| US20060266892A1 (en) * | 2002-12-04 | 2006-11-30 | Martin Scheffel | Supporting element |
| DE102008057517A1 (en) * | 2008-11-15 | 2010-05-20 | Daimler Ag | Distributor pipe of fuel injection system of internal combustion engine for motor vehicle, comprises a tube-like main metal body having a hollow dome-like distributing metal sockets, which are connected with the interior of the main body |
| JP2011220259A (en) * | 2010-04-12 | 2011-11-04 | Hitachi Automotive Systems Ltd | Electromagnetic fuel injection system |
| JP2013050109A (en) * | 2012-11-08 | 2013-03-14 | Denso Corp | Fuel injection device and clamp member |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2985977B2 (en) * | 1991-03-16 | 1999-12-06 | ダイハツ工業株式会社 | Engine fuel injection device |
| JPH1182231A (en) * | 1997-09-09 | 1999-03-26 | Sanou Kogyo Kk | Fuel injection nozzle mounting device |
| JP2004339992A (en) | 2003-05-14 | 2004-12-02 | Hitachi Unisia Automotive Ltd | Fuel injector |
| JP2005163627A (en) * | 2003-12-02 | 2005-06-23 | Mitsubishi Electric Corp | Fuel injection valve device |
| JP4225263B2 (en) * | 2004-10-04 | 2009-02-18 | 三菱自動車工業株式会社 | Injector mounting structure |
| JP4853680B2 (en) | 2008-03-24 | 2012-01-11 | 株式会社デンソー | Fuel supply device |
| US8297257B2 (en) * | 2008-03-26 | 2012-10-30 | Denso Corporation | Fuel supply pipe device and fuel injection device having the same |
| JP4544327B2 (en) * | 2008-03-27 | 2010-09-15 | 株式会社デンソー | Fuel injection device |
| US20100012093A1 (en) * | 2008-07-18 | 2010-01-21 | Pepperine Dean M | High-pressure fuel injector to fuel rail connection |
| JP2012007535A (en) * | 2010-06-24 | 2012-01-12 | Maruyasu Industries Co Ltd | Fuel delivery pipe with damper function |
-
2013
- 2013-06-18 JP JP2013127751A patent/JP6119446B2/en active Active
-
2014
- 2014-06-10 CN CN201410256846.1A patent/CN104234896B/en active Active
- 2014-06-11 DE DE102014211136.6A patent/DE102014211136B4/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003120466A (en) * | 2002-10-22 | 2003-04-23 | Sanoh Industrial Co Ltd | Connector for fuel injection nozzle, and manufacturing method thereof |
| US20060266892A1 (en) * | 2002-12-04 | 2006-11-30 | Martin Scheffel | Supporting element |
| DE102008057517A1 (en) * | 2008-11-15 | 2010-05-20 | Daimler Ag | Distributor pipe of fuel injection system of internal combustion engine for motor vehicle, comprises a tube-like main metal body having a hollow dome-like distributing metal sockets, which are connected with the interior of the main body |
| JP2011220259A (en) * | 2010-04-12 | 2011-11-04 | Hitachi Automotive Systems Ltd | Electromagnetic fuel injection system |
| JP2013050109A (en) * | 2012-11-08 | 2013-03-14 | Denso Corp | Fuel injection device and clamp member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2015001224A (en) | 2015-01-05 |
| CN104234896B (en) | 2016-11-16 |
| JP6119446B2 (en) | 2017-04-26 |
| DE102014211136A1 (en) | 2014-12-18 |
| DE102014211136B4 (en) | 2023-09-21 |
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