CN103306876A - Fuel injector - Google Patents
Fuel injector Download PDFInfo
- Publication number
- CN103306876A CN103306876A CN2013100726663A CN201310072666A CN103306876A CN 103306876 A CN103306876 A CN 103306876A CN 2013100726663 A CN2013100726663 A CN 2013100726663A CN 201310072666 A CN201310072666 A CN 201310072666A CN 103306876 A CN103306876 A CN 103306876A
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- China
- Prior art keywords
- sleeve
- profile
- coupling sleeve
- external frame
- fuel injector
- 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.)
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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
- F02M61/168—Assembling; Disassembling; Manufacturing; Adjusting
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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
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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
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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
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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
- F02M63/00—Other fuel-injection apparatus having pertinent characteristics not provided for in groups F02M39/00 - F02M57/00 or F02M67/00; Details, component parts, or accessories of fuel-injection apparatus, not provided for in, or of interest apart from, the apparatus of groups F02M39/00 - F02M61/00 or F02M67/00; Combination of fuel pump with other devices, e.g. lubricating oil pump
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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
- F02M2200/80—Fuel injection apparatus manufacture, repair or assembly
- F02M2200/8015—Provisions for assembly of fuel injection apparatus in a certain orientation, e.g. markings, notches or specially shaped sleeves other than a clip
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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
- F02M2200/851—Mounting of fuel injection apparatus provisions for adjusting the angular, rotational or axial position of injectors
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
The invention relates to a fuel injector (1) comprising an injection nozzle (10), a switching valve (20) and a connecting sleeve (30) that is arranged between the injection nozzle (10) and the switching valve (20), wherein the injection nozzle has a predetermined outer nozzle contour (12) on a longitudinal end section (11) thereof and the switching valve has a predetermined outer valve contour (22) on a longitudinal end section (21) thereof, and wherein the connecting sleeve has a predetermined inner sleeve contour (33) into which, from a first longitudinal end (31) of the connecting sleeve, the injection nozzle fits with the outer nozzle contour thereof in a form-fitting manner such that the injection nozzle is fixed in a defined alignment relative to the connecting sleeve, and into which, from a second longitudinal end (32) of the connecting sleeve, the switching valve fits with the outer valve contour thereof in a form-fitting manner such that the switching valve is fixed in a defined alignment to the connecting sleeve.
Description
Technical field
The present invention relates to a kind of fuel injector of the multi-part type for internal-combustion engine.
Background technique
Have a plurality of cylinders by putting into practice known internal-combustion engine (for example marine diesel engine), wherein each is associated with at least one fuel injector, in order to give corresponding cylinder feed fuels.Such fuel injector is made up by a plurality of parts that vertically in succession assemble or parts (it must fix or determine with certain orientation (for example in view of its longitudinal axis and rotational position thereof) to each other) mostly.
For by putting into practice known fuel injector, these of a plurality of parts orientation to each other realizes by means of so-called fitting pin (Passstift), and it joins in the cooperation pin-and-hole of parts.By the file DE 2 309 134 A fuel injector of known a kind of such multi-part type for example, wherein, nozzle arrangements is orientated with respect to nozzle holder by fitting pin.
Yet fitting pin has this shortcoming, namely its in the assembling of fuel injector or dismounting easily because mechanical overload fractures or cuts off, and this makes the repair work in the complexity at all parts place become essential usually, especially in view of the taking-up of the fitting pin of damage.
Another shortcoming of fitting pin is, because holding the cooperation pin-and-hole of fitting pin introduces in the sealing surface between the parts usually, fitting pin stretches out from sealing surface after its assembling, therefore for the reprocessing (for example grinding) of sealing surface Cai the palpus intricately remove fitting pin.
Summary of the invention
The object of the invention is to provide a kind of fuel injector of multi-part type, and wherein, its parts are orientated to each other in mode simpler and more easy care.
This utilizes fuel injector according to claim 1 to realize.Improvement project of the present invention limits in the dependent claims.
According to the present invention, fuel injector has jet blower for burner oil as a plurality of interconnective parts, be used for control fuel injection switch valve (Schaltventil) and be arranged in jet blower and switch valve between coupling sleeve, wherein, jet blower locates to have predetermined nozzle external frame and switch valve has predetermined valve external frame at its vertical end intercept place at its vertical end intercept (Laengsendabschnitt), and wherein, coupling sleeve has profile in the predetermined sleeve, vertically bringing out a jet blower from first of coupling sleeve is fitted to wherein ordinatedly with its nozzle outer contour shape, so that nozzle fixes in the orientation with respect to the restriction of coupling sleeve, send out a switch valve and be fitted to ordinatedly wherein with its valve outer contour shape and vertically bring out from second of coupling sleeve, so that switch valve fixes in the orientation with respect to the restriction of coupling sleeve.
In other words, the valve outer contour shape is matched with profile in the sleeve ordinatedly, thereby provide the first axle of form fit-hub to connect as calibrating device (Ausrichtmittel), and the nozzle outer contour shape is matched with profile in the sleeve ordinatedly, thereby provides the second axle of form fit-hub to connect as calibrating device.Correspondingly, the valve external frame becomes complementary with respect to profile in the sleeve with nozzle external frame relative configurations.
The axial engagement of all parts of fuel injector (Zusammenhalt) is common as in the prior art for example to act on the corresponding collar (Ringbund) of parts and the locking nut at outside thread place is guaranteed by one or more.
By adaptive according to form fit of the present invention of profile in nozzle external frame and valve external frame and the sleeve, the parts of fuel injector are orientated to each other in mode simple especially and easy care.
If the parts of fuel injector should be disassembled and in case of necessity reprocessing, after unclamping axial engagement, only must unclamp axle-hub connection via from coupling sleeve, extracting all parts simply.Need to not remove fitting pin for the reprocessing of sealing surface.
Obviously more insensitive with the relative mechanical load of fuel injector according to the present invention that the axle of realizing via polygonal profile-hub connects, thus the danger that when assembling and dismounting, exists less calibrating device to damage.
In addition, by aforesaid member embodiment, for example utilize the transmission of (a plurality of) locking nut obviously larger starting torque be possible, this is in view of the jet pressure that continues to rise and more and more need to be to obtain enough tightnesses.
Preferably, the coupling sleeve size is set for or is configured so that it forms the most weak part of parts.Therefore, only coupling sleeve is destroyed or damage when mechanical overload, so that also only must change it without various tool in simple mode.
According to a form of implementation of the present invention, in the sleeve profile can it with the adaptive vertical end intercept place of nozzle external frame have be different from it with the internal diameter at the adaptive vertical end intercept place of valve external frame.This design proposal of the present invention has this advantage, and namely parts jet blower and switch valve can be divided into sizing and however are fitted in the common coupling sleeve in the situation of considering the space situation.
According to another form of implementation of the present invention, be fitted to nozzle external frame and valve external frame form fit like this in the sleeve in the profile, be orientated with respect to coupling sleeve (coupling sleeve that it is especially felt relieved) in view of its longitudinal axis and its rotational position so that jet blower and switch valve are corresponding with limiting.
In other words, jet blower be connected with switch valve longitudinal axis by axle-hub connect with respect to the longitudinal axis of coupling sleeve and therefore to each other and this external its accordingly in the rotational position of longitudinal axis and therefore be orientated to each other or feel relieved.
According to another form of implementation of the present invention, profile has polygonal shape in the sleeve.Such polygonal shape (as its therefore so can be with the mode of complementation also nozzle external frame place and valve profile place provide or exist) for example can make by non-circular turning or non-circular grinding or by milling.
Preferably, this polygonal shape triangle (for example with the uniform thickness form P3G according to DIN 32711) and especially construct on hexagonal or heptangle ground at least.
According to a form of implementation of the present invention, profile is constructed symmetrically about the longitudinal axis of coupling sleeve in the sleeve.
In this case, preferably being provided with the first projection-recess between profile and the nozzle external frame in sleeve cooperates, it limits jet blower with respect to unique possible rotation orientation of coupling sleeve, cooperate and be provided with the second projection-recess between profile and the valve external frame in sleeve, it limits switch valve with respect to unique possible rotation orientation of coupling sleeve.
Between jet blower, switch valve and coupling sleeve, provide clear and definite rotation location in this mode.
According to of the present invention one alternative form of implementation, profile is asymmetricly constructed about the longitudinal axis of coupling sleeve in the sleeve.
In this case, the polygonal shape that has a plurality of sides preferably has at least one side with the length of other side that is different from polygonal shape.Also more preferably, this polygonal shape has with less than the first side of the length of other side of polygonal shape with the second side greater than the length of other side of polygonal shape.
Between jet blower, switch valve and coupling sleeve, also provide clear and definite rotation location here in this mode.
According to another form of implementation of the present invention, be fitted to throttling of fuel section (Kraftstoffdrossel) form fit in the sleeve between jet blower and switch valve in the profile.In other words, the restriction outer contour shape is matched with ordinatedly in the sleeve profile or is complementary in the sleeve profile ground and constructs, thereby the 3rd axle of form fit-hub connection is provided.
Can be provided with projection-recess at it in respect to the situation of longitudinal axis symmetric construction between the profile in restriction external frame and sleeve cooperates.In the situation of profile with respect to the longitudinal axis non-symmetrical configuration, the restriction external frame only needs complementally to construct with respect to it simply in sleeve.
Therefore, also obtain clear and definite rotation location with respect to other parts of fuel injector about throttling of fuel section.
Preferably, the cooperation of all axles-hub connection or form fit is embodied as slight Spielpassung or is transition fit.
According to the present invention, also provide with good grounds one of the present invention, a plurality of or before all illustrated forms of implementation with the internal-combustion engine of the fuel injector of the combination that can consider arbitrarily, marine diesel engine especially.
Conclusion is, form of implementation according to the present invention provide jet blower and in case of necessity throttling of fuel section with the centering at the switch valve place of the fuel injector of switch valve and clear and definite location (that is to say the orientation of restriction), wherein, this orientation is finished by means of polygonal profile.
Because centering sleeve or coupling sleeve are as with the jet blower of the fuel injector of switch valve, switch valve and the link between the throttling of fuel section in case of necessity, it is unnecessary that fitting pin becomes.Thus, the quantity for the additional required part of orientation is reduced to one from four.
Fitting pin is fractureing or cut off the repairing of the complexity that causes when taking out the fitting pin that damages switch valve or jet blower during mechanical overload in dismounting or assembling.When the coupling sleeve mechanical overload, be possible and need not other instrument change.
Be embodied as the axisymmetric geometrical construction that cooperates with projection-recess (for example fitting pin and affiliated fitting pin recess are transverse to the longitudinally layout of coupling sleeve) or be asymmetrical geometrical construction by polygonal profile, clear and definite location or the orientation of jet blower, throttling of fuel section and switch valve are possible.
The fitting pin of prior art often is shown as overload in practice.When jet blower is measure-alike, connects via polygonal and can transmit than via the higher moment of torsion of employed fitting pin in the prior art so far.
Orientation (preferably including centering) is connected by means of polygonal axle-hub connection (for example axle-hub connects polygonal profile P3G (DIN 32711)) realization in the relative throttling of fuel of jet blower section with switch valve.By in the slightly different modification of the radius at the place, at least two angles of the polygonal profile of triangle at least or by the mistake assembling that can get rid of carelessness with the axisymmetric profile of centring pin or asymmetrical profile (for example with the side L-Y of at least one shortening and the side L+X of at least one prolongation (preferably X=Y) hexagon) is provided, it will be possible by for example longitudinal axis rotation 120 degree around the parts of fuel injector.Therefore may leave out the fitting pin with its original form.
Description of drawings
The present invention extends on such mode of execution clearly, and it does not provide by drawing the Feature Combination that consists of by clear and definite the returning of claim, and therefore disclosed feature of the present invention needs only this technically meaningful can at random mutually combination.
The preferred form of implementation of following basis and in the situation that the reference accompanying drawing illustrates the present invention.
Fig. 1 has shown the decomposition view according to the perspectivity of the fuel injector of a form of implementation of the present invention.
Fig. 2 has shown the view according to the perspectivity of the coupling sleeve of the fuel injector of another form of implementation of the present invention.
Fig. 3 has shown viewgraph of cross-section or the front view of the coupling sleeve of Fig. 2.
Fig. 4 has shown that the straight line A-A in Fig. 3 observes the longitudinal section view of the coupling sleeve of Fig. 2.
List of numerals
1 fuel injector
The 1a fuel injector
10 jet blowers
11 vertically hold intercept
12 nozzle external frames
13 collars
20 switch valves
21 vertically hold intercept
22 valve external frames
30 coupling sleeves
The 30a coupling sleeve
31 vertically hold
31.1 vertically hold intercept
31.1a vertically hold intercept
32 vertically hold
32.1 vertically hold intercept
32.1a vertically hold intercept
Profile in 33 sleeves
Profile in the 33a sleeve
40 throttling of fuel sections
41 restriction external frames
L1, the L2 longitudinal axis
L3, the L4 longitudinal axis
The L length dimension
X, the Y length dimension
S, S ', S ' ' side
The E angle.
Embodiment
Fig. 1 has shown the decomposition view according to the perspectivity of the fuel injector 1 of the first form of implementation structure of the present invention of the internal-combustion engine (not complete illustrating) that is configured to marine diesel engine herein.
Fuel injector 1 have for the jet blower 10 of burner oil (diesel oil herein), be used for control (permissions/locking) fuel injection switch valve 20 and be arranged in jet blower 10 and switch valve 20 between coupling sleeve or the sleeve 30 of feeling relieved.
Coupling sleeve 30 is profile 33 in having predetermined sleeve aspect it, from coupling sleeve 30 first vertically end 31s jet blower 10 with its nozzle external frame 12 form fit be fitted to wherein so that jet blower 10 fixes in the orientation with respect to the restriction of coupling sleeve 30.
In addition, from coupling sleeve 30 second vertically end 32s switch valve 20 with its valve external frame 22 form fit be fitted in the sleeve the profile 33 so that switch valve 20 fixes in the orientation with respect to the restriction of coupling sleeve 30.
In other words, be matched with to valve external frame 22 form fit profile 33 in the sleeve, thereby provide the first axle of form fit-hub to connect as calibrating device, and nozzle external frame 12 form fit be matched with profile 33 in the sleeve, thereby provide the second axle of form fit-hub to connect as calibrating device.
Correspondingly, valve external frame 12 and nozzle external frame 22 corresponding with sleeve in profile 33 complementally construct.
Additionally, throttling of fuel section 40 is fitted to form fit in the sleeve between jet blower 10 and switch valve 20 in the profile 33 regularly with the orientation with respect to the restriction of coupling sleeve 30.
In other words, the restriction external frame 41 of throttling of fuel section 40 is matched with in the sleeve profile 33 with being configured to form fit or is complementary to profile 33 in the sleeve, thereby provides the 3rd axle of form fit-hub to connect as calibrating device.
Preferably, the cooperation of all axles-hub connection or form fit is embodied as slight Spielpassung or is transition fit.
As seen from Figure 1, jet blower 10 has longitudinal axis L 1, and switch valve 20 has longitudinal axis L 2, and coupling sleeve 30 has longitudinal axis L 3 and throttling of fuel section 40 has longitudinal axis L 4.
According to the present invention, be fitted to nozzle external frame 12, valve external frame 22 and restriction external frame 41 form fit like this in the sleeve in the profile 33, be orientated with respect to coupling sleeve 30 in view of its longitudinal axis L 1, L2 or L4 and its rotational position around corresponding longitudinal axis L 1, L2 or L4 so that jet blower 10, switch valve 20 and throttling of fuel section 40 are corresponding with limiting.In other words, jet blower 10, switch valve 20 and throttling of fuel section longitudinal axis L 1, L2 or the L4 of being connected by axle-hub connect with respect to the longitudinal axis L 3 of coupling sleeve 30 and therefore to each other and this external its in the corresponding rotational position of longitudinal axis L 1, L2 or L4 and therefore be orientated to each other or feel relieved.
In order to realize this orientation, valve external frame 12, nozzle external frame 22 and restriction external frame 41 be corresponding have polygonal shape and in the sleeve profile 33 have the polygonal shape complementary with respect to these external frames (valve external frame 12, nozzle external frame 22 and restriction external frame 41).The inner polygonal shape with the outside for example can or also be made by milling by non-circular turning or non-circular grinding.
According to the present invention, the corresponding polygonal shape of the parts of fuel injector 1 is triangle ground and especially construct on heptangle ground according to Fig. 1 at least.
The joint of axial (in the vertical) of all parts of fuel injector 1 is common as in the prior art for example to be guaranteed by one or more locking nut (not shown), and locking nut acts on outside thread (not shown) and the corresponding collar (for example collar 13 of jet blower 10) of parts and locates.
Although in Fig. 1, so do not illustrate, according to profile 33 in the form of implementation sleeve of the present invention can it with adaptive vertical end intercept 31.1 places of nozzle external frame 12 have be different from it with the internal diameter at adaptive vertical end intercept 32.1 places of valve external frame 22.This design proposal of the present invention has advantages of especially can be set size with parts (jet blower 10 and switch valve 20) and however be fitted in the common coupling sleeve 30 under the situation of considering the space situation.
As seen from Figure 1, the corresponding polygonal shape of the parts of fuel injector 1 (profile 33 and restriction external frame 41 in valve external frame 12, nozzle external frame 22, the sleeve) is corresponding asymmetricly constructs about its longitudinal axis L 1, L2, L3 or L4, in order to guarantee the clear and definite rotation location between jet blower 10, switch valve 20, throttling of fuel section 40 and coupling sleeve 30.In other words, the parts of fuel injector 1 are corresponding only can insert in the coupling sleeve 30 in unique rotational position that limits in advance.
At length, each polygonal shape have a plurality of side S, S ', S ' ' and be connected they angle E and at least one have side S ', the S ' ' (three sides in Fig. 1) of the length of other side S that is different from this polygonal shape.
According to Fig. 1, each polygonal shape has with three side S ', S ' ' less than the length of other side S of polygonal shape, wherein, these are configured with side S ' ' among side S ', the S ' ' of smaller length and have the length that is configured with the another side S ' among side S ', the S ' ' of smaller length less than these of this polygonal shape.
Fig. 2 to 4 has shown the view according to the coupling sleeve 30a of the second form of implementation of the present invention structure of the fuel injector 1a (not complete illustrating) of the internal-combustion engine (not complete illustrating) that is configured to marine diesel engine.
The corresponding polygonal shape of the parts of fuel injector 1a (profile 33a and restriction external frame in valve external frame, nozzle external frame, the sleeve) is asymmetricly constructed about its longitudinal axis is corresponding again, in order to guarantee the clear and definite rotation location between jet blower, switch valve, throttling of fuel section and coupling sleeve 30a.Therefore, the parts of fuel injector 1a are corresponding only can insert in the coupling sleeve 30 in the unique rotation that limits in advance location.At length, each polygonal shape of the parts of fuel injector 1a has a plurality of side S, S ', S ' ' and is connected their angle E and with at least one side S ', S ' ' (two sides in Fig. 2-4) of the length of other side S that is different from this polygonal shape.
According to Fig. 2-4, each polygonal shape of the parts of fuel injector 1a has with the first side S less than the length (L-Y) of other side S of this polygonal shape " with the second side S ' greater than the length (L+X) of other side S (with length dimension L) of this polygonal shape.Preferably, length dimension X equals length dimension Y.
According to the in the accompanying drawings unshowned modification of the first and second forms of implementation of the present invention, corresponding polygonal shape (profile and restriction external frame in valve external frame, nozzle external frame, the sleeve) can be constructed symmetrically about its longitudinal axis.
In this case, be provided with the first projection-recess between profile and the nozzle external frame and cooperate in sleeve, it limits jet blower with respect to unique possible rotation orientation of coupling sleeve.In addition, be provided with the second projection-recess between profile and the valve external frame and cooperate in sleeve, it limits switch valve with respect to unique possible rotation orientation of coupling sleeve.At last, also be provided with projection-recess between the profile so in restriction external frame and sleeve and cooperate, it limits throttling of fuel section with respect to unique possible rotation orientation of coupling sleeve.
Each projection-recess for example cooperates can be to extend to the fitting pin recess in the corresponding external frame according to the degree of depth transverse to the longitudinal axis of (jet blower, switch valve or throttling of fuel section) and to construct transverse to the longitudinal axis form that radially inwardly profile joins the assembly of the fitting pin the fitting pin recess in sleeve with stretching out.Preferably, the fitting pin recess vertically has unlimited end corresponding parts, and fitting pin can be inserted in the corresponding fitting pin recess via it when parts insert coupling sleeve.
Claims (10)
1. fuel injector (1; 1a), its band is useful on the jet blower (10) of burner oil, be used for control fuel injection switch valve (20) and be arranged in described jet blower (10) and described switch valve (20) between coupling sleeve (30), wherein, described jet blower (10) locates to have predetermined nozzle external frame (12) and described switch valve (20) locates to have predetermined valve external frame (22) at its vertical end intercept (21) at its vertical end intercept (11), and wherein, described coupling sleeve (30,30a) have profile (33 in the predetermined sleeve; 33a), from described coupling sleeve (30,30a) first vertically end (31) the described jet blower (10) that sets out be fitted to the interior profile (33 of described sleeve with its nozzle external frame (12) form fit ground; 33a), so that described jet blower (10) is with respect to described coupling sleeve (30, fix on the orientation of restriction 30a), and from described coupling sleeve (30,30a) second vertically end (32) the described switch valve (20) that sets out be fitted to the interior profile (33 of described sleeve with its valve external frame (22) form fit ground; 33a) so that described switch valve (20) with respect to described coupling sleeve (30, fix on the orientation of restriction 30a).
2. fuel injector (1 according to claim 1; 1a), wherein, described nozzle external frame (12) and described valve external frame (22) so form fit are fitted to profile (33 in the described sleeve; 33a) so that described jet blower (10) corresponding with described switch valve (20) in view of its longitudinal axis (L1, L2) and rotational position thereof with respect to described coupling sleeve (30,30a) be orientated with limiting.
3. fuel injector (1 according to claim 1 and 2; 1a), wherein, profile (33 in the described sleeve; 33a) has polygonal shape.
4. fuel injector (1 according to claim 3; 1a), wherein, described polygonal shape at least triangle ground, especially construct on hexagonal or heptangle ground.
5. according to claim 3 or 4 described fuel injectors (1; 1a), wherein, profile (33 in the described sleeve; 33a) (30, longitudinal axis 30a) (L3) is constructed symmetrically about described coupling sleeve.
6. fuel injector (1 according to claim 5; 1a), wherein, profile (33 in described sleeve; 33a) with between the described nozzle external frame (12) be provided with the first projection-recess and cooperate, it limits described jet blower (10) with respect to described coupling sleeve (30; Unique possible rotation orientation 30a), and wherein, profile (33 in described sleeve; 33a) with between the described valve external frame (22) be provided with the second projection-recess and cooperate, it limits described switch valve (20) with respect to described coupling sleeve (30; Unique possible rotation orientation 30a).
7. according to claim 3 or 4 described fuel injectors (1; 1a), wherein, profile (33 in the described sleeve; 33a) (30, longitudinal axis 30a) (L3) is asymmetricly constructed about described coupling sleeve.
8. fuel injector (1 according to claim 7; 1a), wherein, described polygonal shape has a plurality of sides (S, S ', S ' ') and with at least one side of the length of other side (S) that is different from described polygonal shape (S ', S ' ').
9. fuel injector according to claim 8 (1a), wherein, described polygonal shape has with less than the first side of the length of other side (S) of described polygonal shape (S ' ') with greater than the second side of the length of other side (S) of described polygonal shape (S ').
10. each described fuel injector (1 in 9 according to claim 1; 1a), it is characterized in that, throttling of fuel section (40) is fitted to form fit profile (33 in the described sleeve between jet blower (10) and switch valve (20); 33a).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012203621A DE102012203621A1 (en) | 2012-03-07 | 2012-03-07 | fuel injector |
| DE102012203621.0 | 2012-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103306876A true CN103306876A (en) | 2013-09-18 |
| CN103306876B CN103306876B (en) | 2016-03-30 |
Family
ID=47915145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310072666.3A Active CN103306876B (en) | 2012-03-07 | 2013-03-07 | Fuel injector |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JP6068516B2 (en) |
| KR (1) | KR101941714B1 (en) |
| CN (1) | CN103306876B (en) |
| DE (1) | DE102012203621A1 (en) |
| FI (1) | FI126732B (en) |
| WO (1) | WO2013131652A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111954756A (en) * | 2018-03-16 | 2020-11-17 | 德尔福知识产权有限公司 | Operating tool |
| US20230407829A1 (en) * | 2022-06-21 | 2023-12-21 | Cummins Inc. | Devices, systems, and methods for orienting fuel injector nozzle spray holes |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100240841B1 (en) * | 1997-08-14 | 2000-01-15 | 박상록 | Jet nozzle for diesel engine having variable jet hall |
| JP2004521244A (en) * | 2001-06-13 | 2004-07-15 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Fuel injection valve for internal combustion engine |
| US7438055B1 (en) * | 2007-07-11 | 2008-10-21 | Delphi Technologies, Inc | Fuel injector to fuel rail connection |
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- 2012-03-07 DE DE102012203621A patent/DE102012203621A1/en active Pending
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- 2013-03-05 FI FI20135208A patent/FI126732B/en active IP Right Grant
- 2013-03-06 KR KR1020130023729A patent/KR101941714B1/en active IP Right Grant
- 2013-03-07 WO PCT/EP2013/000677 patent/WO2013131652A1/en active Application Filing
- 2013-03-07 JP JP2014560277A patent/JP6068516B2/en active Active
- 2013-03-07 CN CN201310072666.3A patent/CN103306876B/en active Active
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| US7438055B1 (en) * | 2007-07-11 | 2008-10-21 | Delphi Technologies, Inc | Fuel injector to fuel rail connection |
| EP2080892A1 (en) * | 2008-01-16 | 2009-07-22 | Delphi Technologies, Inc. | Fuel injector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111954756A (en) * | 2018-03-16 | 2020-11-17 | 德尔福知识产权有限公司 | Operating tool |
| CN111954756B (en) * | 2018-03-16 | 2022-07-05 | 德尔福知识产权有限公司 | Operating tool |
| US20230407829A1 (en) * | 2022-06-21 | 2023-12-21 | Cummins Inc. | Devices, systems, and methods for orienting fuel injector nozzle spray holes |
Also Published As
| Publication number | Publication date |
|---|---|
| FI126732B (en) | 2017-04-28 |
| WO2013131652A1 (en) | 2013-09-12 |
| JP2015509568A (en) | 2015-03-30 |
| CN103306876B (en) | 2016-03-30 |
| DE102012203621A1 (en) | 2013-09-12 |
| KR101941714B1 (en) | 2019-01-23 |
| FI20135208A (en) | 2013-09-08 |
| JP6068516B2 (en) | 2017-01-25 |
| KR20130102489A (en) | 2013-09-17 |
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