CN204186518U - A kind of multi-orifice pencil-style fuel injectors - Google Patents
A kind of multi-orifice pencil-style fuel injectors Download PDFInfo
- Publication number
- CN204186518U CN204186518U CN201420598152.1U CN201420598152U CN204186518U CN 204186518 U CN204186518 U CN 204186518U CN 201420598152 U CN201420598152 U CN 201420598152U CN 204186518 U CN204186518 U CN 204186518U
- Authority
- CN
- China
- Prior art keywords
- oil
- valve
- needle
- injector body
- orifice
- 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.)
- Expired - Fee Related
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 39
- 239000007921 spray Substances 0.000 claims abstract description 49
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 230000033228 biological regulation Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 20
- 238000002347 injection Methods 0.000 claims description 17
- 239000007924 injection Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 3
- 210000002445 nipple Anatomy 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 106
- 238000000034 method Methods 0.000 description 8
- 238000005336 cracking Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical group [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Fuel-Injection Apparatus (AREA)
Abstract
The utility model discloses a kind of multi-orifice pencil-style fuel injectors, comprise tight cap and afterbody cover and fit over oil injector body in tight cap inner chamber front port, intermediate, block and valve seat is fitted with successively in tight cap inner chamber, tight cap intracavity posterior end mouth is fitted with fuel inlet fitting, is fitted with pressure regulation pad, pressure adjusting spring and adjustment pad in the center cavity of intermediate successively; Oil injector body is the axial penetrating elongated body type structure being shaped with needle-valve chamber, the needle-valve matched in this needle-valve chamber is elongated rod-like structure, in the front end cavity of oil injector body, the oil nozzle with multiple minor diameter jet orifice structures is installed, the central axis of each spray orifice intersects at a point, and form a taper shape according to above-mentioned central axis as bus, this conical center line constitutes the common centreline of each spray orifice, and the tilt angle between common centreline and needle-valve medial axis is 13o; The seat surface diameter of needle-valve is 2.34 ± 0.03mm, and needle lift is 1.23 ± 0.03mm.
Description
Technical field
The utility model relates to fuel injection technology, particularly relates to a kind of oil sprayer, specifically a kind of multi-orifice pencil-style fuel injectors.
Background technique
Porous type oil nozzle is the accurate device on motor, and quality of fit is higher, and the quality of quality nozzle directly will affect motor and normally use and the life-span.Existing porous type oil injector body structural design: one is adopt shorter injector valve, makes the guiding position of needle-valve near engine chamber, and needle-valve guiding position is subject to heat, often occurs oil nozzle stuck phenomenon; Assembly has more number of spare parts and the sealing surface of Assembly part, reduces the sealing of assembly, and adopts higher cracking pressure, adds the impact force of needle-valve to oil nozzle seat surface, and causing trouble increases, and reliability reduces; Two is that injection hole on injection nozzle quantity is few, and aperture is large, therefore combustion oil atomization is insufficient, is unfavorable for burning, increases oil consumption, increases the discharge of CO and HC, not easily reaches environment protection requirement.
The applying date is the oil sprayer that " a kind of rotary needle-valve type injector " (notification number is CN2413041Y) of the Chinese utility model patent ZL00206288.7 on March 22nd, 2000 just belongs to this class formation: it comprises plunger, plunger body, guide finger, rotary spool, valve body, oil pocket and spring, the tapering, lower end of valve body is provided with nozzle opening, spring is arranged on its upper end, plunger body and valve body locating stud are located, the convex body of plunger lower end is arranged in rotary spool upper end " bucket " shape structure, is provided with oil duct in tapering, rotary spool lower end.It cannot overcome the problems referred to above.
Summary of the invention
Technical problem to be solved in the utility model is for above-mentioned prior art present situation, and provide that novel structure, volume are little, performance good, oil consumption is low, discharge less, a kind of multi-orifice pencil-style fuel injectors of good reliability and long service life.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of multi-orifice pencil-style fuel injectors, comprise tight cap and tail seal cover and fit over oil injector body in tight cap inner chamber front port, be positioned at oil injector body breech face in tight cap inner chamber and be fitted with the valve seat that intermediate, block and inside are provided with spool successively, in tight cap intracavity posterior end mouth, sealing is fitted with the fuel inlet fitting that inside is pressed with filter core, is fitted with pressure regulation pad, pressure adjusting spring and adjustment pad from the bottom to top successively in the center cavity of intermediate; Oil injector body is the axial penetrating elongated body type structure being shaped with needle-valve chamber, the needle-valve matched in this needle-valve chamber is elongated rod-like structure, be provided with in the front end cavity of oil injector body and match with needle-valve and there is the oil nozzle of multiple minor diameter jet orifice structure, the central axis of each spray orifice intersects at a point, and form a taper shape according to above-mentioned central axis as bus, this conical center line constitutes the common centreline of each spray orifice, and the tilt angle between common centreline and needle-valve medial axis is 13o; The seat surface diameter of needle-valve is 2.34 ± 0.03mm, and needle lift is 1.23 ± 0.03mm.
For optimizing technique scheme, the measure taked also comprises:
Above-mentioned oil injector body physical dimension diameter is 9.525 ± 0.05mm, and length is 170 ~ 200mm; Needle valve structure size diameter is 3.985 ± 0.08mm, and length is 134 ~ 135mm.
The front end equal radian of nipple body periphery of above-mentioned oil nozzle is shaped with six spray orifices, and crosses the injection circular cone drift angle that forms between the spray orifice in any plane of needle-valve medial axis and be 145o; Angle order on oil nozzle between the central axis of each spray orifice and the medial axis of oil nozzle is respectively No. 1 spray orifice 59.5o ± 2o, No. 2 spray orifice 66.41o ± 2o, No. 3 spray orifice 79.3o ± 2o, No. 4 spray orifice 85.5o ± 2o, No. 5 spray orifice 79.3o ± 2o, No. 6 spray orifice 66.41o ± 2o.
Above-mentioned oil injector body front end outer circumferential face and the rear portion being positioned at front end cavity is shaped with annular groove, in this groove, cover is joined and is provided with seal ring, and tight cap front end ring surface pad is furnished with gasket seal.
The aperture of the spray orifice of above-mentioned oil nozzle is 0.23 ± 0.005mm.
The inner chamber front port of above-mentioned tight cap has inner cone sealing inclined-plane, correspondingly, the afterbody of oil injector body has and seals with this inner cone the cone structure matched on inclined-plane, and the afterbody of oil injector body is tilted to down the oil injector body oil duct being shaped with and being communicated with oil injector body needle-valve chamber by breech face.
The afterbody outer circumferential face of above-mentioned oil injector body is shaped with tail groove, and in this tail groove, cover is furnished with the seal ring sealed; The outer circumferential face of fuel inlet fitting is set with the O type circle coordinated with tight cap intracavity posterior end mouth inner wall sealing.
Above-mentioned intermediate is longitudinally penetrating is shaped with the intermediate oil duct being communicated with oil injector body oil duct, and block is shaped with through upper and lower end face for connecting the block oil duct of intermediate oil duct.
Above-mentioned valve seat is shaped with the valve seat oil input channel for being communicated with block oil duct, the valve seat oil input channel of this valve seat is connected with the oil input channel of fuel inlet fitting, tight cap has the drain tap of communication with cavity.
Above-mentioned fuel inlet fitting is equipped with mutually with tight cap spiral, is provided with lower positioning dowel, the through upper positioning dowel be equipped with for locating valve seat and intermediate of block between the press-fiting of intermediate and oil injector body breech face.
Compared with prior art, the utility model by the structure of oil injector body is designed to elongated penholder type, and adopts elongated injector valve, makes the guiding position of needle-valve away from engine chamber, improve the situation of being heated at needle-valve guiding position, stop oil nozzle stuck phenomenon; The utility model adopts without oil return apparatus simultaneously, decrease the sealing surface of number of spare parts and Assembly part, improve the sealing of assembly, and needle-valve has lower cracking pressure, decrease the impact force of needle-valve to oil nozzle seat surface, and fault-free reliability increases.Oil nozzle of the present utility model adopts many spray orifices minor diameter structure, and the atomization quality of burning is good like this, is beneficial to burning, reduces oil consumption, reduces the discharge of CO and HC, reaches environment protection requirement.The utility model has novel structure, volume is little, performance good, oil consumption is low, oil atomizing is abundant, discharge less, the feature of good reliability and long service life.
Accompanying drawing explanation
Fig. 1 is longitudinal sectional structure schematic diagram of the utility model embodiment;
Fig. 2 is the close-up schematic view by the parts of positioning dowel in Fig. 1;
Fig. 3 is oil nozzle enlarged view and spray orifice distribution schematic diagram in Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 to Fig. 3 is structural representation of the present utility model.
Reference character is wherein: drain tap T, lower positioning dowel S1, upper positioning dowel S2, tight cap 1, oil injector body 2, oil injector body oil duct 2a, needle-valve 21, seal ring 22, intermediate 3, intermediate oil duct 3a, center cavity 3b, pressure regulation pad 31, pressure adjusting spring 32, adjustment pad 33, block 4, block oil duct 4a, valve seat 5, valve seat oil input channel 5a, spool 51, fuel inlet fitting 6, oil input channel 6a, filter core 61, O type circle 62, oil nozzle 7, spray orifice 7a, seal ring 8, gasket seal 9.
As shown in Figure 1 to Figure 3, a kind of multi-orifice pencil-style fuel injectors of the present utility model, comprise tight cap 1 and tail seal cover and fit over oil injector body 2 in tight cap 1 inner chamber front port, oil injector body 2 is the axial penetrating elongated body type structure being shaped with needle-valve chamber, in the needle-valve chamber of this oil injector body 2, coupling has injector valve 21, the needle-valve 21 matched is elongated rod-like structure, be positioned at oil injector body 2 breech face in tight cap 1 inner chamber and be fitted with intermediate 3 successively, block 4 and the inner valve seat 5 being provided with spool 51, in tight cap 1 intracavity posterior end mouth, sealing is fitted with the fuel inlet fitting 6 that inside is pressed with filter core 61, fuel inlet fitting 6 compresses block 4, pressure regulation pad 31 is fitted with successively from the bottom to top in the center cavity 3b of intermediate 3, pressure adjusting spring 32 and adjustment pad 33, be provided with in the front end cavity of oil injector body 2 and match with needle-valve 21 and there is the oil nozzle 7 of multiple minor diameter spray orifice 7a structure, the central axis of each spray orifice 7a of the utility model oil nozzle 7 can intersect at a point, and can form a taper shape according to above-mentioned central axis as the words of bus, this conical center line constitutes the common centreline of each spray orifice (namely all spray orifices).For making interior circulation area obtain maximum value, augmented flow, the tilt angle between described common centreline and needle-valve 21 medial axis is 13o.For making the guide portion distance of positions of needle-valve 21 from starting firing chamber better position, improving needle-valve 21 better and to lead the situation of being heated at position, having stopped oil nozzle stuck phenomenon.The utility model oil injector body 2 physical dimension diameter is preferably 9.525 ± 0.05mm, and length is 170 ~ 200mm; Needle-valve 21 physical dimension diameter is 3.985 ± 0.08mm, and length is 134 ~ 135mm.The seat surface diameter of needle-valve 21 is 2.34 ± 0.03mm, and for effectively controlling delayed injection endurance and fuel injection quantity, reduce the impact force of working procedure, needle-valve 21 lift is 1.23 ± 0.03mm.
As shown in Figure 3, for more effectively guaranteeing the atomization quality of fuel oil in embodiment, be beneficial to burning, reduce oil consumption, reduce the discharge of CO and HC, the front end equal radian of nipple body periphery of oil nozzle 7 is shaped with six spray orifice 7a, for reaching the atomizing effect of better fuel oil, the aperture of the spray orifice 7a of oil nozzle 7 is 0.23 ± 0.005mm, and crosses the injection circular cone drift angle that forms between the spray orifice 7a in any plane of needle-valve 21 medial axis and be 145o; Angle order on oil nozzle 7 between the central axis of each spray orifice 7a and the medial axis of oil nozzle 7 is respectively No. 1 spray orifice 59.5o ± 2o, No. 2 spray orifice 66.41o ± 2o, No. 3 spray orifice 79.3o ± 2o, No. 4 spray orifice 85.5o ± 2o, No. 5 spray orifice 79.3o ± 2o, No. 6 spray orifice 66.41o ± 2o.
As can see from Figure 1, oil injector body 2 front end the outer circumferential face of the present utility model and rear portion being positioned at front end cavity is shaped with annular groove, in this groove, cover is joined and is provided with seal ring 8, and tight cap 1 front end ring surface pad is furnished with gasket seal 9.
In embodiment, as shown in Figure 1, the inner chamber front port of tight cap 1 has inner cone sealing inclined-plane, correspondingly, the afterbody of oil injector body 2 has and seals with this inner cone the cone structure matched on inclined-plane, and the afterbody of oil injector body 2 is tilted to down the oil injector body oil duct 2a being shaped with and being communicated with oil injector body 2 needle-valve chamber by breech face.
In embodiment, the afterbody outer circumferential face of oil injector body 2 is shaped with tail groove, and in this tail groove, cover is furnished with the seal ring 22 sealed; The outer circumferential face of fuel inlet fitting 6 is set with the O type circle 62 coordinated with tight cap 1 intracavity posterior end mouth inner wall sealing.
In embodiment, intermediate 3 is longitudinally penetrating is shaped with the intermediate oil duct 3a being communicated with oil injector body oil duct 2a, and block 4 is shaped with through upper and lower end face for connecting the block oil duct 4a of intermediate oil duct 3a.
In embodiment, valve seat 5 is shaped with the valve seat oil input channel 5a for being communicated with block oil duct 4a, the valve seat oil input channel 5a of this valve seat 5 is connected with the oil input channel 6a of fuel inlet fitting 6, tight cap 1 has the drain tap T of communication with cavity.
In embodiment, fuel inlet fitting 6 is equipped with mutually with tight cap 1 spiral, is provided with lower positioning dowel S1, the through upper positioning dowel S2 be equipped with for locating valve seat 5 and intermediate 3 of block 4 between the press-fiting of intermediate 3 and oil injector body 2 breech face.
Working principle of the present utility model is as follows:
The utility model is the injector assembly for diesel engine with direct injection, that diesel injection pump is by the high pressure fuel of compression during work, after filter core 61 filters, the oil input channel 6a of oil sprayer fuel inlet fitting 6 is entered through high-pressure oil pipe, and along valve seat 5, block 4, the oil duct of intermediate 3 enters oil injector body 2 high-voltage oil cavity, final arrival needle-valve 21 sealing cone position, when pressure exceedes needle-valve 21 cracking pressure, needle-valve 21 rises fuel oil and sprays from oil nozzle 7 spray orifice 7a, when the pressure in high-pressure oil passage is taken a seat lower than needle-valve 21 during needle-valve 21 cracking pressure, end of injection, Injection Pump often rotates one turn of i.e. once high-pressure oil feed, namely the utility model synchronously completes with the fuel feeding of Injection Pump and once sprays.
It is as follows that the utility model critical piece processes the technical measures that should take:
1. the accuracy to shape of fuel inlet fitting conical surface should be improved, surface roughness, sealing, reliability when ensureing that assembly installation uses;
2. numerical control machine tool processing is carried out to injection hole on injection nozzle; Divide three process disposable processing spray orifice, namely feel relieved, hole, reaming.Ensure that pore size and angular orientation; Crush and grind processing is carried out again, the flow of raising and stable injection hole on injection nozzle and uniformity conformity thereof after heat treatment; Improve the emission performance of diesel engine, reduce engine fuel consumption;
3. the utility model is after debugging terminates, the installation end face to product before packaging, more once grinds processing, to ensure the perpendicularity of end face, guarantees the sealing of installing;
4. smooth operation is increased to installation pad, the parallelism on the planeness of pad and two sides is all controlled within the scope of 0.03mm, guarantee the sealing used of installing;
5. oil injector body material adopts superior alloy steel, and its advantage is that cutting ability is good, and temper resistance is high, and oil injector body adopts localized carburizing, localized quench hardening, namely ensures quality of product, again can simplified processing process;
6. the angle of tight cap, adopts grinding process, ensures angle accuracy, prevents oil nozzle stuck phenomenon during assembling;
7. intermediate both ends of the surface adopt and flat grind machine grinding and ensure that both ends of the surface parallelism 0.013mm and planeness 0.0015, mm;
8. injector valve adopts and rolls chromium Bearing Steel, and its seat surface and seat surface sealed diameter are processed with procedure, and needle valve seat surface and seat surface sealed diameter coaxality are ensured very well, plays a role to spraying sealing up-to-standard rate during assembling.
The utility model is that oil injector body structural design adopts elongated penholder type by one, and adopts elongated injector valve, makes the guiding position of needle-valve away from engine chamber, improves the situation of being heated at needle-valve guiding position, has stopped oil nozzle stuck phenomenon; Two is adopt without oil return apparatus, and decrease the sealing surface of number of spare parts and Assembly part, improve the sealing of assembly, and needle-valve has lower cracking pressure, decrease the impact force of needle-valve to oil nozzle seat surface, fault-free reliability reaches more than 1000h; Three is that oil nozzle adopts many spray orifices minor diameter structure, and the atomization quality of such fuel oil is good, is beneficial to burning, reduces oil consumption, reduces the discharge of CO and HC, reaches environment protection requirement.It has novel structure, volume is little, performance good, oil consumption is low, oil atomizing is abundant, discharge less, the feature of good reliability and long service life.
Claims (10)
1. a multi-orifice pencil-style fuel injectors, comprise tight cap (1) and tail seal cover and fit over oil injector body (2) in tight cap (1) inner chamber front port, be positioned at oil injector body (2) breech face in described tight cap (1) inner chamber and be fitted with intermediate (3) successively, block (4) and inside are provided with the valve seat (5) of spool (51), in described tight cap (1) intracavity posterior end mouth, sealing is fitted with the fuel inlet fitting (6) that inside is pressed with filter core (61), it is characterized in that: in the center cavity (3b) of described intermediate (3), be fitted with pressure regulation pad (31) from the bottom to top successively, pressure adjusting spring (32) and adjustment pad (33), described oil injector body (2) is the axial penetrating elongated body type structure being shaped with needle-valve chamber, the needle-valve (21) matched in this needle-valve chamber is elongated rod-like structure, be provided with in the front end cavity of described oil injector body (2) and match with needle-valve (21) and there is the oil nozzle (7) of multiple minor diameter spray orifice (7a) structure, the central axis of the spray orifice (7a) described in each intersects at a point, and form a taper shape according to above-mentioned central axis as bus, this conical center line constitutes the common centreline of the spray orifice (7a) described in each, tilt angle between described common centreline and needle-valve (21) medial axis is 13o, the seat surface diameter of described needle-valve (21) is 2.34 ± 0.03mm, and needle-valve (21) lift is 1.23 ± 0.03mm.
2. a kind of multi-orifice pencil-style fuel injectors according to claim 1, is characterized in that: described oil injector body (2) physical dimension diameter is 9.525 ± 0.05mm, and length is 170 ~ 200mm; Needle-valve (21) physical dimension diameter is 3.985 ± 0.08mm, and length is 134 ~ 135mm.
3. a kind of multi-orifice pencil-style fuel injectors according to claim 2, it is characterized in that: the front end equal radian of nipple body periphery of described oil nozzle (7) is shaped with six spray orifices (7a), and the injection circular cone drift angle crossing formation between spray orifice (7a) described in any plane of needle-valve (21) medial axis is 145o; The upper angle order between the central axis of each spray orifice (7a) and the medial axis of oil nozzle (7) of described oil nozzle (7) is respectively No. 1 spray orifice 59.5o ± 2o, No. 2 spray orifice 66.41o ± 2o, No. 3 spray orifice 79.3o ± 2o, No. 4 spray orifice 85.5o ± 2o, No. 5 spray orifice 79.3o ± 2o, No. 6 spray orifice 66.41o ± 2o.
4. a kind of multi-orifice pencil-style fuel injectors according to claim 3, it is characterized in that: described oil injector body (2) front end outer circumferential face and the rear portion being positioned at front end cavity is shaped with annular groove, overlap to join in this groove and be provided with seal ring (8), described tight cap (1) front end ring surface pad is furnished with gasket seal (9).
5. a kind of multi-orifice pencil-style fuel injectors according to claim 4, is characterized in that: the aperture of the spray orifice (7a) of described oil nozzle (7) is 0.23 ± 0.005mm.
6. a kind of multi-orifice pencil-style fuel injectors according to claim 5, it is characterized in that: the inner chamber front port of described tight cap (1) has inner cone sealing inclined-plane, correspondingly, the afterbody of described oil injector body (2) has and seals with this inner cone the cone structure matched on inclined-plane, and the afterbody of described oil injector body (2) is tilted to down the oil injector body oil duct (2a) being shaped with and being communicated with oil injector body (2) needle-valve chamber by breech face.
7. a kind of multi-orifice pencil-style fuel injectors according to claim 6, is characterized in that: the afterbody outer circumferential face of described oil injector body (2) is shaped with tail groove, and in this tail groove, cover is furnished with the seal ring (22) sealed; The outer circumferential face of described fuel inlet fitting (6) is set with the O type circle (62) coordinated with tight cap (1) intracavity posterior end mouth inner wall sealing.
8. a kind of multi-orifice pencil-style fuel injectors according to claim 7, it is characterized in that: described intermediate (3) is longitudinally penetrating is shaped with the intermediate oil duct (3a) being communicated with oil injector body oil duct (2a), and described block (4) is shaped with through upper and lower end face for connecting the block oil duct (4a) of intermediate oil duct (3a).
9. a kind of multi-orifice pencil-style fuel injectors according to claim 8, it is characterized in that: described valve seat (5) is shaped with the valve seat oil input channel (5a) for being communicated with block oil duct (4a), the valve seat oil input channel (5a) of this valve seat (5) is connected with the oil input channel (6a) of fuel inlet fitting (6), described tight cap (1) has the drain tap (T) of communication with cavity.
10. a kind of multi-orifice pencil-style fuel injectors according to claim 9, it is characterized in that: described fuel inlet fitting (6) is equipped with mutually with tight cap (1) spiral, lower positioning dowel (S1) is provided with, the through upper positioning dowel (S2) be equipped with for locating valve seat (5) and intermediate (3) of described block (4) between the press-fiting of described intermediate (3) and oil injector body (2) breech face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598152.1U CN204186518U (en) | 2014-10-16 | 2014-10-16 | A kind of multi-orifice pencil-style fuel injectors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420598152.1U CN204186518U (en) | 2014-10-16 | 2014-10-16 | A kind of multi-orifice pencil-style fuel injectors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186518U true CN204186518U (en) | 2015-03-04 |
Family
ID=52618527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420598152.1U Expired - Fee Related CN204186518U (en) | 2014-10-16 | 2014-10-16 | A kind of multi-orifice pencil-style fuel injectors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186518U (en) |
-
2014
- 2014-10-16 CN CN201420598152.1U patent/CN204186518U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104533684B (en) | A kind of many band fuel nozzles of double control valve | |
| CN106089523A (en) | A kind of high pressure common rail electric control fuel injector | |
| US6546914B1 (en) | Fuel injection valve for an internal combustion engine | |
| CN101694195B (en) | Double-needle-valve matching part of marine diesel engine | |
| CN203175733U (en) | Control jet flat valve structure of electronic control fuel injector | |
| CN201031756Y (en) | Marine high power diesel engine fuel oil injector assembly | |
| CN204186518U (en) | A kind of multi-orifice pencil-style fuel injectors | |
| CN100334344C (en) | Multi-orifice pencil-style fuel injectors | |
| CN2775332Y (en) | Multiple jet hole pencil type oil sprayer capable of connecting various oil inlet tube joint | |
| CN102926904A (en) | Elongated oil nozzle for small bore swirl chamber diesel engine | |
| CN103047061A (en) | Controlled injection flat valve mechanism of electrical oil injector | |
| CN2830684Y (en) | Extended multi-porous oil sprayer | |
| CN2906108Y (en) | Multi-squirt-hole pencil type oil injector | |
| CN2821187Y (en) | Lengthening type porous oil spray | |
| US7108201B2 (en) | Injection valve | |
| CN2893193Y (en) | Long bend pipe joint multi-hole type fuel injection device | |
| CN2906110Y (en) | Multi-squirt-hole pencil type oil injector | |
| CN101694197A (en) | Split-type needle valve matching part | |
| CN209469527U (en) | A kind of electronic fuel injection and the fuel injector including it | |
| CN2906109Y (en) | Multi-squirt-hole pencil type oil injector | |
| CN203067143U (en) | Lengthened type oil nozzle for small-cylinder-diameter swirl chamber type diesel engine | |
| CN203098111U (en) | Control injection valve of electronic fuel injector | |
| CN104214034A (en) | L80MC low-speed diesel engine carbon-deposit-resisting nozzle | |
| CN2775330Y (en) | Multiple jet hole pencil type oil sprayer capable of connecting various oil inlet tube joint | |
| CN204436662U (en) | With the oil nozzle of helical groove structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 |