CN110537015A - Fuel injection valve - Google Patents
Fuel injection valve Download PDFInfo
- Publication number
- CN110537015A CN110537015A CN201780089641.0A CN201780089641A CN110537015A CN 110537015 A CN110537015 A CN 110537015A CN 201780089641 A CN201780089641 A CN 201780089641A CN 110537015 A CN110537015 A CN 110537015A
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- China
- Prior art keywords
- fuel
- spray orifice
- injection valve
- fuel injection
- swivel chamber
- Prior art date
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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
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
Abstract
A kind of fuel injection valve of the internal combustion engine of micronized that can promote injection fuel is provided.Fork flow path (18) before the upper surface of jet orifice plate (13) is equipped with multiple swivel chambers (17) and with the recess portion of flat bottom surface and reaches above-mentioned swirling chamber (17).Moreover, by from the bottom surface of swirling chamber (17) orthogonal to the axis relative to axis it is inclined in a manner of be equipped with spray orifice (14).The entrance center (14a) of spray orifice (14) is arranged to bias from the centre of gyration (17a) of the fuel of swivel chamber (17), and the export center (14b) of spray orifice (14) is arranged close to centre of gyration (17a).
Description
Technical field
The present invention relates to the fuel injection valves that fuel is supplied for the internal combustion engine etc. to automobile.
Background technique
In recent years, the discharge gas limitation of internal combustion engine of automobile etc. is being strengthened, it is desirable that sprays from fuel injection valve
The micronized of sprayed fuel, and various discussion are carried out in the way of rotary current realization micronized.
It is constituted in previous technology are as follows: in the feelings towards the inclined direction injection fuel of central axis relative to fuel injection valve
Under condition, the tabular component for offering fuel injection hole is set to the downstream side for spool contact, the valve seat left, and make above-mentioned time
The bottom surface for turning room is vertical with the injection direction of fuel (for example, referring to patent document 1).
Existing technical literature
Patent document
Patent document 1: Japanese Patent Laid-Open 2015-169084 bulletin
Summary of the invention
The technical problems to be solved by the invention
Previous fuel injection valve is following structure: needing to be formed as the bottom surface of swivel chamber relative to square with the axis
Face inclination, the difficulty processed compared with the situation that the bottom surface of swivel chamber is formed as to square with the axis is high, so that productivity may
It is low.
The present invention is to solve above-mentioned this technical problem and make, its purpose is to provide a kind of fuel injection valve, towards phase
In the case where direction injection fuel inclined for the axis of fuel injection valve, the spray characteristic of fuel is good and productivity is high.
Technical scheme applied to solve the technical problem
Fuel injection valve of the invention includes: fuel supplying part, axial supply fuel of the above-mentioned fuel supplying part along flow path；
And jet orifice plate, above-mentioned jet orifice plate are set to the downstream side of above-mentioned fuel supplying part, and the combustion that will be supplied from above-mentioned fuel supplying part
Material diverges in the face orthogonal with above-mentioned axis towards multiple directions, and guides to the swivel chamber to fuel application turning power, and make
Above-mentioned fuel from the bottom surface for passing through the above-mentioned swivel chamber orthogonal with above-mentioned axis, relative to the inclined spray orifice injection of above-mentioned axis, In
In above-mentioned spray orifice, biased for the center for the inlet portion that fuel flows into from the centre of gyration of the fuel of above-mentioned swivel chamber, and for combustion
Expect that the center of the outlet portion sprayed is arranged close to the above-mentioned centre of gyration.
Invention effect
The bottom surface of swivel chamber is arranged to orthogonal to the axis, therefore handling ease, spray orifice by fuel injection valve according to the present invention
Outlet portion center to bias in a manner of the centre of gyration, therefore can be to result from the centre of gyration of the fuel in spray orifice
Centered on blank part, the thickness for the fuel liquid film for flowing down the inner circumferential face contact near with the outlet portion with spray orifice is in the circumferential
Homogenization, so as to improve the spray characteristics of fuel.
Detailed description of the invention
Fig. 1 is the axial cross-sectional view of the fuel injection valve along embodiment of the present invention 1.
Fig. 2 is the cross-sectional view for indicating the example for configuring the fuel injection valve of Fig. 1 to air inlet.
(a) of Fig. 3 is the enlarged cross-sectional view of the downstream portion of the fuel injection valve of Fig. 1, and (b) of Fig. 3 is the line A-A of Fig. 3 (a)
Top view.
Fig. 4 is the enlarged plan view of the fork flow path of the jet orifice plate of Fig. 3 (b).
(a) of Fig. 5 is the enlarged drawing of the region A1 of Fig. 4, and (b) of Fig. 5 is the cross-sectional view of the line B-B of Fig. 5 (a).
(a) of Fig. 6 is the enlarged drawing for indicating the fuel stream of region A1 of Fig. 4, and (b) of Fig. 6 is the section view of the line C-C of Fig. 6 (a)
Figure.
Fig. 7 is the enlarged drawing of the region A2 of Fig. 4.
Fig. 8 is the main portion sectional view for indicating the fuel injection valve of embodiment of the present invention 2.
Fig. 9 is the top view for indicating the fork flow path of the H font of the fuel injection valve of embodiment of the present invention 3.
Figure 10 is the top view for indicating the fork flow path of the I font of the fuel injection valve of embodiment of the present invention 4.
Figure 11 is the top view for indicating the fork flow path of the X font of the fuel injection valve of embodiment of the present invention 5.
(a) of Figure 12 is the enlarged plan view of the swivel chamber of the fuel injection valve of comparative example, and (b) of Figure 12 is Figure 12 (a)
The cross-sectional view of line D-D.
Specific embodiment
Embodiment 1
Hereinafter, being illustrated using fuel injection valve 1 of the Fig. 1 to Fig. 7 to embodiment of the present invention 1.
Fig. 1 is the cross-sectional view along axis (central axis) direction of fuel injection valve 1, and Fig. 2 is the fuel sprayed from fuel injection valve 1
Become misty and the air inlet 22 of diffusion cross-sectional view.
As shown in Figure 1, fuel injection valve 1 of the invention is from the fuel supplying part 1a of upstream portion is located at relative to positioned at downstream portion
Jet orifice plate 13 supplies fuel along axial.Moreover, being configured to a plurality of fuel flow path that diverges out in jet orifice plate 13, and as shown in Figure 2
Fuel is sprayed along multiple directions, such as both direction.
Hereinafter, being illustrated in more detail to fuel injection valve 1.
As shown in Figure 1, the fuel injection valve 1 of embodiment of the present invention 1 is configured to specifically include that spiral piping arrangement 4, as magnetic circuit
The shell 5 of yoke part, the core 6 of fixed iron core part as magnetic circuit, coil 7, as the movable core part of magnetic circuit
Armature 8 and valve gear 9.Valve gear 9 is made of spool 10, valve body 11 and valve seat 12.Valve body 11 is being pressed into core 6
It is soldered after outer diameter part, armature 8 is soldered after being pressed into spool 10.Jet orifice plate 13 is combined with valve seat 12.By fuel injection valve 1
Arrival jet orifice plate 13 before fuel flow path be set as fuel supplying part 1a.Jet orifice plate 13 by along plate thickness direction it is perforative in a manner of
Equipped with multiple spray orifices 14 (fuel injection hole).
Then, the movement of fuel injection valve 1 is illustrated.
When driving circuit sending action signal of the control device from engine to fuel injection valve 1, electric current can be logical to coil 7
Electricity, to generate magnetic flux in the magnetic circuit being made of armature 8, core 6, shell 5 and valve body 11.In the work of above-mentioned magnetic flux
Under, armature 8 is drawn to 6 side of core, will lift off a seat base portion with the spool 10 of 8 Construction integration of armature and form gap
(becoming valve opening state) when becoming valve opening state, fuel is worn from the corner portion 15a for the sphere 15 for being welded in 10 front end of spool
The gap crossed between valve seat 12 and spool 10 is simultaneously ejected into engine charge access via multiple spray orifices 14.
Then, when stop signal of the control device from engine to the driving circuit sending action of fuel injection valve 1,
The energization of electric current in coil 7 stops, and the magnetic flux in magnetic circuit is reduced, in the compressed spring 16 for pushing spool 10 towards valve closing direction
Under the action of, the space closure (becoming closed valve state) between spool 10 and valve seat 12.When becoming closed valve state, fuel injection
Terminate.
It is integrated due to spool 10 and armature 8, with the on-off action of valve, armature exterior side surface portion 8a will be with valve body
11 guide portion sliding, and armature upper surface portion 8b is abutted with the lower surface of core 6 under valve opening state.
As shown in Fig. 2, the fuel injection valve 1 of embodiment of the present invention 1 be installed on than by air inlet be directed into internal combustion engine into
Port 22 is divided into the position of fork-shaped on the upstream side.It is equipped with intake valve 23 in the downstream side for the air inlet 22 for being divided into fork-shaped, it is spraying to fire
Material 21 is sprayed from the multiple spray orifices 14 for being set to a jet orifice plate 13 to two intake valves 23 being provided separately.
The valve seat 12 of the downstream portion of the fuel injection valve of Fig. 1 and the enlarged section of jet orifice plate 13 are shown in (a) of Fig. 3
Figure showing the line A-A of (a) along Fig. 3, jet orifice plate 13 to be arranged to criss-cross fork flow path 18 in (b) of Fig. 3
Top view.The center of the valve seat opening portion 12b of open end as valve seat 12 is arranged to the criss-cross fork with jet orifice plate 13
The center of flow path 18 is aligned.
In addition, the enlarged plan view of the fork flow path of the jet orifice plate 13 of (b) of Fig. 3 is shown in FIG. 4.
As shown in Figure 3, Figure 4, certain depth is recessed with the upstream-side end surface of jet orifice plate 13 and forms the main points of recess portion, be formed with
Multiple swivel chambers 17 of turning power are applied to fuel and import the fork flow path 18 of fuel to swivel chamber 17.Moreover, swivel chamber 17
Bottom surface and diverge flow path 18 bottom surface be arranged to it is square with the axis in a manner of with the orthogonality of center shaft of fuel injection valve 1.
Spray orifice 14 is arranged to the both direction along the injection direction as the inclined fuel of axis relative to fuel injection valve 1
In any one direction inclination.Moreover, the inlet portion of spray orifice 14 is disposed relative to swivel chamber 17 in the face perpendicular to axis
Center (centre of gyration 17a of fuel) and it is inclined towards opposite with the inclined direction of the inlet portion from spray orifice 14 to outlet portion direction
It sets.In Fig. 4, in the swivel chamber forming portion indicated with region A1, region A4, the centre bit of the inlet portion of spray orifice 14 from revolution
It sets to biasing on the right side of paper, and to injection fuel on the left of paper, in the swivel chamber forming portion indicated with region A2, region A3,
The inlet portion of spray orifice 14 is biased from the center of fuel turnaround to paper left side, and sprays fuel to paper right side.
That is, be set to jet orifice plate 13 four spray orifices 14 in two spray orifices 14 inlet portion biased direction be arranged to
Reach swivel chamber 17 before fork flow path 18 fuel importing direction it is parallel, the inlet portion of remaining two spray orifices 14 it is inclined
Direction is set to be arranged to keep angle (such as in straight with the importing direction of the fuel of the fork flow path 18 before reaching swivel chamber 17
Angle).
Moreover, such as the line B-B of (a) of Fig. 5 in the enlarged drawing of region A1 of Fig. 4 in (a) of Fig. 5, (b) of Fig. 5
Shown in cross-sectional view, in spray orifice 14, the entrance center 14a of spray orifice 14 so that swivel chamber 17 center, that is, centre of gyration 17a
With the consistent mode bias configuration of export center 14b of spray orifice 14.On paper (in face orthogonal to the axial direction), fuel is from fork
Flow path 18 is directed into swivel chamber 17 along importing direction 18a, and turns round in swivel chamber 17, and along with biased direction (from revolution
Entrance center 14a from heart 17a to spray orifice 14 direction) 14c it is opposite fuel injection direction 21a injection.In the example of fig. 5,
Fork importing direction 18a and biased direction 14c, the fuel injection direction 21a of flow path 18 are orthogonal.
In addition, swivel chamber 17 is cylindrical, in this case, the center of cylinder is defined as the center of swivel chamber 17 (in revolution
Heart 17a).
In the micronized mode for the sprayed fuel that rotary current is utilized, revolution is generated by basic point of the center of swivel chamber 17
Stream.When generating rotary current, the blank part of fuel will be not present along axial generation in the center position of swivel chamber 17.Fuel
Blank part also generated in the same direction in the inside of spray orifice 14, the fuel of the liquid film turned round in spray orifice 14 is present in sky
Around the portion of hole, the sprayed fuel sprayed from the outlet portion of spray orifice 14 becomes the state of micronized.
However, the thickness of liquid film will in the case where the export center 14b of spray orifice 14 is not overlapped and is staggered with centre of gyration 17a
Become uneven in the circumferential direction of spray orifice 14, so that the micronized of fuel can be hindered.
Here, the comparative example as fuel injection valve 1 of the invention, does not bias the entrance center 140a of spray orifice 140
Structure, i.e. centre of gyration 17a are illustrated with the fuel injection valve of the entrance center 140a of spray orifice 140 structure being overlapped.
(a) of Figure 12 is as the major part top view for comparing the fuel injection valve exemplified, to inclined relative to axis
The case where entrance center 140a of spray orifice 140 is overlapped with the centre of gyration 17a of swivel chamber 17 is illustrated, and (b) of Figure 12 is indicated
The D-D cross-sectional view of (a) of Figure 12.
As shown in (a) of Figure 12, (b), although the entrance center 140a of spray orifice 140 is consistent with the centre of gyration, spray orifice 140 with
Towards outlet portion along inclined spray orifice 140 axially away from centre of gyration 17a, therefore, formed at the outlet portion of spray orifice 140
Become uneven in the thickness of the fuel liquid film of the inner circumferential of spray orifice 140.
In contrast, in the fuel injection valve 1 of the present application, with the region A1 of Fig. 4 as shown in (a) of Fig. 6
In spray orifice 14 centered on fuel stream 20 shown in, make the centre of gyration of the entrance center 14a of spray orifice 14 relative to swivel chamber 17
17a is biased in square with the axis face towards the direction opposite with the inclined direction of the inlet portion from spray orifice 14 to outlet portion, and will
The export center 14b of spray orifice 14 is arranged close to the centre of gyration 17a of swivel chamber 17.As shown in (b) of Fig. 6, even if by spray orifice
14 entrance center 14a biasing, the fuel 19 for being directed into swivel chamber 17 also can be the centre of gyration 17a's for resulting from swivel chamber 17
It is turned round around blank part, the fuel 19 with turning power forms fuel liquid film 19a with the main points that the inner wall in spray orifice 14 spirals.
Fuel liquid film 19a flows downward in spray orifice 14, and becomes to form thin uniform thickness along the inner circumferential of the outlet portion of spray orifice 14
State.Entrance center 14a by making spray orifice 14 is biased can make the export center 14b court of spray orifice 14 and result from revolution
The direction that the blank part of heart 17a is overlapped is mobile.Blank part will not be such that the inner wall near the outlet portion of spray orifice 14 exposes as a result, because
This, fuel liquid film 19a will not be removed at the inner wall near the outlet portion of spray orifice 14, and the particulated nature of the fuel after injection is good
It is good.
In addition, by keeping the export center 14b of spray orifice 14 consistent with the centre of gyration 17a of swivel chamber 17, so that at outlet portion
The uniform film thicknessization of fuel liquid film is in most good state, and this point is from need not say.
Here, it is preferred that the centre of gyration 17a that the amount of bias of the inlet portion of spray orifice 14 is set to swivel chamber 17 is included in spray orifice
In the range of 14 inlet portion, and meet the pass of " radius (section of spray orifice 14 is rounded) of spray orifice amount of bias < spray orifice 14 "
System.In the case where spray orifice amount of bias is set greater than the size of above-mentioned spray orifice amount of bias, at the inlet portion of spray orifice 14 sometimes
The released part of not formed liquid film can be generated, the uniformity of the thickness of liquid film at the outlet portion of spray orifice 14 is lost sometimes.
Moreover, being not limited to above-mentioned shape although showing the example that swivel chamber 17 is cylindric cavity.Cylinder
The center of the swivel chamber 17 of shape in addition is the center (centre of gyration 17a) of revolution when generating rotary current.In
In the case where the swivel chamber 17 of logarithmic spiral shape, the position of the basic point of logarithmic spiral curve is defined as the center of swivel chamber 17.
In addition, in the case where the revolution chamber shape being made of the curve with multiple curvature, the center of the curve with minimum curvature
It is defined as the center of swivel chamber 17.
The fuel injection valve 1 of above-mentioned this embodiment 1 makes in the entrance of spray orifice 14 for the inclination in view of spray orifice 14
Therefore the structure that heart 14a is biased from centre of gyration 17a can make the fuel of the liquid film turned round at the outlet portion of spray orifice 14
Uniform film thickness, so as to promote to spray the micronized of fuel.As long as moreover, edge and the central axis upright of fuel injection valve 1
Plane, the bottom surface that certain depth is that is excavated into downwards in the upper surface of jet orifice plate 13 and forms swivel chamber 17 and fork flow path
18 bottom surface, without complicated processing, therefore, productivity is improved.
In addition, being illustrated in fig. 5 and fig. to the swivel chamber forming portion of the region A1 of Fig. 4, the combustion in the flow path 18 that diverges
Stream and the fuel stream of injection are orthogonal in face (such as paper) orthogonal to the axis, and the revolution of the fuel in swivel chamber 17 is less than one
Secondary rotation.
However, the enlarged plan view of the region A2 of Fig. 4 is such as shown in Figure 7, and in the swivel chamber forming portion of region A2, combustion
Stream is parallel with the fuel stream of injection, and the revolution of the fuel in swivel chamber 17 becomes substantially to rotate primary state.As a result, in area
Become the structure for applying stronger turning power to fuel compared with the structure of region A1 in the A2 of domain.That is, due to turning round
The power of the turning power of the fuel generated in room 17, the jet power of the fuel sprayed from the spray orifice 14 for being located at region A2, region A4
The jet power of fuel than spraying from the spray orifice 14 for being located at region A1, region A3 is stronger.
In the region A1 and region A4 or region A2 and region A3 for spraying fuel in the same direction, due to the revolution of fuel
Power exists strong and weak, and therefore, the division position of injected fuel spray will generate difference, thus the particle after spraying be not likely to produce each other it is dry
It relates to, thus can obtain and gather the effect that the micronized of the fuel in spraying is further promoted.
Embodiment 2
Then, it is illustrated using fuel injection valve 1 of the Fig. 8 to embodiment of the present invention 2.
Shown in above embodiment 1 to by linearly extended spray orifice 14 along inclined path direction with identical open-mouth ruler
The example of very little formation.However, in the case where making inclined bottom surface of the spray orifice 14 relative to swivel chamber 17, it will generate swivel chamber 17
Bottom surface and spray orifice 14 inner peripheral surface angulation be acute angle part.It is the part of acute angle, spray orifice at above-mentioned formed angle
14 inner wall is not covered by fuel liquid film 19a, and generates the released part of fuel stream, thus the fuel of the inner peripheral surface along spray orifice 14
The formation of liquid film 19a becomes insufficient state, and the fuel particles characteristic after injection may be deteriorated.
Fig. 8 is the main portion sectional view for indicating the fuel injection valve 1 of embodiment of the present invention 2, is a spray orifice 14
Enlarged cross-sectional view.As shown in figure 8, adjusting opening size at the inlet portion of spray orifice 14, and in the bottom surface of swivel chamber 17 and spray
Bigger opening size is used at the coupling part in hole 14, and the inlet portion of spray orifice 14 is set as curve form.That is,
Expand the diameter of the inlet portion of spray orifice 14, eliminate include swivel chamber 17 bottom surface and spray orifice 14 inner peripheral surface part at an acute angle with
And formed angle be obtuse angle part corner and chamfering is set, to form the inlet portion of smooth curve form.As a result, can
Improve the fuel at the inlet portion of spray orifice 14 to flow into state and inhibit the removing of fuel liquid film 19a, so as to preferably be fired
The micronized of material.
Embodiment 3
Then, it is illustrated using fuel injection valve 1 of the Fig. 9 to Figure 11 to embodiment of the present invention 3.
The flat shape of the fork flow path 18 set on jet orifice plate 13 is shown in above embodiment 1 in criss-cross example.
However, fork flow path 18 can also be formed as shape in addition to this.
Fig. 9 is the top view for indicating the fork flow path 18 of jet orifice plate 13, and it illustrates the shapes that fork flow path 18 is arranged to H font
State.In the case where the flow path 18 that diverges is in H font, four swivel chambers 17 of distance axis equidistance are arranged to the entrance of spray orifice 14
The center in portion biases compared with the center of swivel chamber 17 towards the upstream side of fork flow path 18, biased direction and fork
The importing direction of fuel in flow path 18 is parallel.The major part for flowing into the fuel of swivel chamber 17 as a result, is revolved in swivel chamber 17
Spray orifice 14 is flowed into after circling, therefore, the structure of sufficient turning power can be obtained by becoming the fuel in swivel chamber 17.Cause
This, the micronised state of the fuel after injection improves.
Figure 10 is the top view for indicating the fork flow path 18 of the I font of jet orifice plate 13, and it illustrates in fork flow path 18
End is configured adjacently the state of two opposite swivel chambers 17 of gyratory directions respectively.Even if in above-mentioned point using I font
In the case where branch road 18, fork flow path 18 is also provided with into fuel from the direction that fork flow path 18 is imported to swivel chamber 17 and spray orifice
14 inclined directions are substantially uniform in square with the axis face, the biased direction of the inlet portion of spray orifice 14 and reach swivel chamber 17 it
The importing direction of the fuel of preceding fork flow path 18 is parallel.As a result, the center of the inlet portion of spray orifice 14 towards fork flow path 18
Fuel passage upstream side biasing.In this case, fuel can also obtain sufficient turning power in swivel chamber 17, thus
It is able to achieve the micronized for promoting injection fuel.This manner it is also possible to which an integrated fork stream is arranged relative to two swivel chambers 17
Road 18.
Figure 11 is the top view for indicating the fork flow path 18 of the X font of jet orifice plate 13, in the fork flow path 18 of above-mentioned X font
End, four swivel chambers 17 of distance axis equidistance are arranged to the center of the inlet portion of spray orifice 14 relative to fork
The center of the flow path of flow path 18 and swivel chamber 17 keeps angle and biases.In this way, fork flow path 18 is configured to across fuel
The center of the valve seat opening portion 12b of supply unit 1a.In this case, in each swivel chamber 17, in face orthogonal to the axis,
Therefore the center of the inlet portion of spray orifice 14, can make liquid film in spray orifice towards the direction biasing contrary with fuel injection
It is homogenized at 14 outlet portion, so that the micronized of the fuel after injection improves.
In addition, as shown in figure 11, reaching two fork flow paths 18 before spraying two spray orifices 14 of fuel in the same direction and handing over
The angle of fork is acute angle.Thus, it is possible to say that fuel is inclined from the direction and spray orifice 14 that fork flow path 18 is flowed into swivel chamber 17
Direction is substantially uniform in face orthogonal to the axis.
In addition, each embodiment can be freely combined within the scope of the invention by the present invention, or each embodiment is fitted
When deformation, omit.
(symbol description)
1 fuel injection valve；1a fuel supplying part；4 spiral piping arrangements；5 shells；6 cores；7 coils；8 armatures；8a armature outer
Side surface part；8b armature upper surface portion；9 valve gears；10 spools；11 valve bodies；12 valve seats；12b valve seat opening portion；13 jet orifice plates；14
Spray orifice；14a entrance center；14b export center；14c biased direction；15 spheres；15a corner portion；16 compressed springs；17 revolutions
Room；The 17a centre of gyration；18 fork flow paths；18a importing direction；19 fuel；19a fuel liquid film；20 fuel streams；21 sprayed fuels；
21a fuel injection direction；22 air inlets；23 intake valves.
Claims (7)
1. a kind of fuel injection valve characterized by comprising
Fuel supplying part, axial supply fuel of the fuel supplying part along flow path；And
Jet orifice plate, the jet orifice plate are set to the downstream side of the fuel supplying part, and the combustion that will be supplied from the fuel supplying part
Material diverges in the face orthogonal with the axis towards multiple directions, and guides to the swivel chamber to fuel application turning power, and make
The fuel from the bottom surface for passing through the swivel chamber orthogonal with the axis, relative to the axis inclined spray orifice injection,
In the spray orifice, biased for the center for the inlet portion that fuel flows into from the centre of gyration of the fuel of the swivel chamber, and
And the centre of gyration is arranged close to for the center for the outlet portion that fuel sprays.
2. fuel injection valve as described in claim 1, which is characterized in that
The center that the spray orifice is arranged to the outlet portion is located at the underface of the centre of gyration.
3. fuel injection valve as claimed in claim 1 or 2, which is characterized in that
The center of the inlet portion of the spray orifice is opposite with the inclined direction of the spray orifice with court in the orthogonal face of the axis
Direction biasing.
4. fuel injection valve as claimed any one in claims 1 to 3, which is characterized in that
It supplies to the fuel of the jet orifice plate and draws via the fork flow path being made of the recess portion for the upper surface for being set to the jet orifice plate
It is directed at the swivel chamber,
The bottom surface of the fork flow path and the bottom surface of the swivel chamber are made of a continuous flat surface.
5. fuel injection valve according to any one of claims 1 to 4, which is characterized in that
The swivel chamber is set at four different locations of the axis equidistance,
Fuel sprays in the same direction from two adjacent swivel chambers, to be divided into fork-shaped from the jet orifice plate.
6. the fuel injection valve as described in any one of claims 1 to 5, which is characterized in that
The inlet portion of the spray orifice is set as curve form.
7. fuel injection valve as claimed in claim 4, which is characterized in that
The flat shape of the fork flow path of the swivel chamber is any of cross, I font, H font and X font.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/016912 WO2018198309A1 (en) | 2017-04-28 | 2017-04-28 | Fuel injection valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110537015A true CN110537015A (en) | 2019-12-03 |
| CN110537015B CN110537015B (en) | 2021-08-10 |
Family
ID=63920263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780089641.0A Active CN110537015B (en) | 2017-04-28 | 2017-04-28 | Fuel injection valve |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6745986B2 (en) |
| CN (1) | CN110537015B (en) |
| WO (1) | WO2018198309A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020157823A (en) * | 2019-03-25 | 2020-10-01 | 本田技研工業株式会社 | Oil supply guide |
| WO2021029295A1 (en) * | 2019-08-09 | 2021-02-18 | 日立オートモティブシステムズ株式会社 | Fuel injection valve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734020A (en) * | 2011-03-31 | 2012-10-17 | 日立汽车系统株式会社 | Fuel injection valve |
| CN202900497U (en) * | 2012-03-23 | 2013-04-24 | 日立汽车系统株式会社 | Fuel injection valve |
| US20130175367A1 (en) * | 2012-01-11 | 2013-07-11 | Hitachi Automotive Systems, Ltd. | Fuel Injection Valve |
| CN203161402U (en) * | 2012-03-09 | 2013-08-28 | 日立汽车系统株式会社 | Fuel injection valve |
| JP2016070070A (en) * | 2014-09-26 | 2016-05-09 | 三菱電機株式会社 | Fuel injection valve |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3808396C2 (en) * | 1988-03-12 | 1995-05-04 | Bosch Gmbh Robert | Fuel injector |
| JP2005337191A (en) * | 2004-05-31 | 2005-12-08 | Mitsubishi Electric Corp | Fuel injection valve |
| JP2016098702A (en) * | 2014-11-20 | 2016-05-30 | 株式会社日本自動車部品総合研究所 | Fuel injection valve |
| JP6523984B2 (en) * | 2016-02-12 | 2019-06-05 | 日立オートモティブシステムズ株式会社 | Fuel injection valve |
-
2017
- 2017-04-28 JP JP2019515017A patent/JP6745986B2/en active Active
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- 2017-04-28 CN CN201780089641.0A patent/CN110537015B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734020A (en) * | 2011-03-31 | 2012-10-17 | 日立汽车系统株式会社 | Fuel injection valve |
| US20130175367A1 (en) * | 2012-01-11 | 2013-07-11 | Hitachi Automotive Systems, Ltd. | Fuel Injection Valve |
| CN203161402U (en) * | 2012-03-09 | 2013-08-28 | 日立汽车系统株式会社 | Fuel injection valve |
| CN202900497U (en) * | 2012-03-23 | 2013-04-24 | 日立汽车系统株式会社 | Fuel injection valve |
| JP2016070070A (en) * | 2014-09-26 | 2016-05-09 | 三菱電機株式会社 | Fuel injection valve |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018198309A1 (en) | 2018-11-01 |
| JP6745986B2 (en) | 2020-08-26 |
| JPWO2018198309A1 (en) | 2019-07-04 |
| CN110537015B (en) | 2021-08-10 |
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