CN201391398Y - Pored fuel injector with deformed valve block for motor - Google Patents
Pored fuel injector with deformed valve block for motor Download PDFInfo
- Publication number
- CN201391398Y CN201391398Y CN200920151493U CN200920151493U CN201391398Y CN 201391398 Y CN201391398 Y CN 201391398Y CN 200920151493 U CN200920151493 U CN 200920151493U CN 200920151493 U CN200920151493 U CN 200920151493U CN 201391398 Y CN201391398 Y CN 201391398Y
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- CN
- China
- Prior art keywords
- valve
- housing
- fuel
- elastic
- fuel injector
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a pored fuel injector with a deformed valve block for a motor, which comprises a housing and an oil inlet interface. A valve body consisting of a valve head, a valve rod and a rear cover is arranged in the housing, wherein the valve head provided with a valve body sealing zone is positioned at the lower end of the valve body; a support structure is arranged on the inner wall of the housing; an elastic valve block supported by the support structure is arranged in the position where the support structure is arranged; the elastic valve block consists of a sealing support zone, an elastic zone and a seat zone from outside to inside; a through hole matched with the valve body sealing zone is formed on the seat zone; the sealing support zone is tightly coupled with the housing; the rear cover of the valve body is tightly coupled with the upper end of the housing; and the inner chamber of the housing is communicated with a timing pulse fuel source through the oil inlet interface and an oil pipe. The fuel injector has the advantages of simple structure, low manufacturing cost, and fast fuel injection response, and improves the work efficiency of the motor and ensures a low emission.
Description
Technical field
The utility model relates to engine art.
Background technique
The fuel injection technology is to improve the efficient of motor and reduce one of most important technology of engine emission.In recent years, in diesel engine and gasoline engine fuel spraying technique field, though fuel-injection pressure improves constantly, high-pressure common rail and electromagnetic valve spraying technique have obtained extensive use, and be big but present fuel injector all exists volume mostly, the manufacture cost height, shortcomings such as fuel injection low-response, especially the diesel injection device need be provided with oil return system, plunger coupled parts and valve, and complex structure has restricted the raising of engine efficiency and environmental-protecting performance.For this reason the applicant invented a kind of simple in structure, low cost of manufacture, volume is little, sprays the fast fuel injector of response, thereby effectively raises the efficient and the low emission of motor.
Summary of the invention
It is a kind of simple in structure that the purpose of this utility model will provide exactly, low cost of manufacture, and volume is little, sprays the fast new work engine fuel injector of response.The utility model discloses a kind of apertured valve sheet deformation fuel injector for engine for this reason, comprising: housing and oil-feed interface, the specific implementation form is as follows:
In described housing, be provided with valve body, described valve body is by valve head, valve rod, bonnet is formed, described valve head is positioned at the lower end of described valve body, described valve head is established the valve seal district, on the inwall of described housing, establish supporting structure, the place establishes elastic valve plate in described supporting structure, described elastic valve plate is subjected to described support construction supports, described elastic valve plate is certainly outside to inside by the sealing Support, elastic region and seat oral region constitute, and described seat oral region is provided with the through hole that matches with described valve seal district, and described through hole is made as the plane with the sealing surface that described valve seal district matches, the conical surface or curved surface, described sealing Support is connected with described housing seal, and the described bonnet of described valve body and the upper end of described housing are tightly connected, and the inner chamber of described housing is through oil-feed interface and oil pipe and timing pulse fuel source UNICOM.
Described supporting structure is made as the ring packing support platform, and the section shape line of the bottom of described sealing Support and the top seal contacting point of described ring packing support platform is made as arc.
Be provided with the position structure body in described housing, the inboard of described position structure body contacts with described valve stem slides guiding, the outside of described position structure body and described housing drive fit, and described position structure body is provided with the fuel gallery.
Described elastic valve plate is made as flat elastic valve plate, on scratch formula elastic valve plate or downwarp formula elastic valve plate.
Described elastic valve plate is separated into epicoele and cavity of resorption with the inner chamber of described housing, described cavity of resorption is the fuel distribution district, fuel injection hole is located on the wall in described fuel distribution district, described fuel injection hole and described fuel distribution district UNICOM, described epicoele is through described oil-feed interface and described oil pipe and described timing pulse fuel source UNICOM.
The timing pulse fuel source of indication is the diesel oil high pressure oil pump in the utility model, high pressure co-rail system, the system that oil pump and solenoid valve are formed, or other can produce the oil supply system of fuel oil pulsating pressure by the timing relation, its objective is and to produce the timing pulse fuel source of spraying required pressure by timing events, and provide high pressure fuel to fuel injector described in the utility model by the timing relation.
Traditional fuel injector is that the deformation by built-in spring causes valve body to produce displacement mostly, finishes the open close of oil circuit.Based on this structure, just must have movable plunger coupled parts in the fuel injector, because the existence of plunger coupled parts, the leakage of fuel oil is also just inevitable, therefore must be provided with oil return system in traditional fuel injector, it is complicated that the structure of fuel injector just becomes.The machining accuracy of plunger coupled parts and cost are higher in addition, and heat resistance is relatively poor.The key technology of apertured valve sheet deformation fuel injector for engine described in the utility model is to produce deformation by the elastic valve plate in the fuel injector under the effect of timing pulse fuel pressure, cause that the valve body displacement forms the fuel oil break-make, thereby the timing that forms fuel oil is sprayed.
The fuel injection amount of apertured valve sheet deformation fuel injector for engine described in the utility model can be regulated by the material (but being the Hu coefficient of elastic valve plate) that changes elastic valve plate, the fuel pressure and the valve opening aperture of timing pulse fuel source, also can regulate by the degree of depth of adjusting valve body bonnet precession housing.Elastic valve plate described in the utility model can adopt high temperature resistant elastic material to make.
For further improving the fuel-injected accuracy, can be provided with fuel distribution district and fuel injection hole in the housing lower end, so not only can improve fuel injection, can also reduce of the influence of the high temperature of motor generation when work to elastic valve plate.For the facility of machining, housing also can be divided into two-part up and down, can connect by adjusting pad between the two housing sections up and down, forms a seal chamber.Adjust pad and not only can play the effect that is tightly connected, can also adjust fuel-injected pressure and flow by the thickness of adjusting pad.
The utility model has following actively useful effect:
1. the fuel injector volume is little, and is simple in structure;
2. heat-resisting quantity is good;
3. it is fast to spray speed of response;
4. fuel injection amount is more accurate.
Description of drawings
Fig. 1 is the utility model first embodiment's a structural representation;
Fig. 2 is the utility model second embodiment's a structural representation;
Fig. 3 is the utility model the 3rd embodiment's a structural representation;
Fig. 4 is the flat elastic valve plate structural representation of the utility model;
Fig. 5 scratches formula elastic valve plate structural representation on the utility model;
Fig. 6 is the utility model downwarp formula elastic valve plate structural representation;
Accompanying drawing number
1. housing 2. valve bodies 3. fuel distribution districts 4. fuel injection holes
10. supporting structure 11. epicoeles 12. cavity of resorptions 5. elastic valve plates
51. 53. oral region 531. through holes in sealing 52. elastic regions, Support
20. valve head 21. valve rods 22. bonnets 23. valve seal districts
6. oil-feed interface 61. oil pipes 7. timing pulse fuel source
8. ring packing support platform 9. position structure bodies 91. fuel galleries
13. scratch the formula elastic valve plate on the flat elastic valve plate 14.
15. downwarp formula elastic valve plate
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing, see also apertured valve sheet deformation fuel injector for engine shown in Figure 1, comprise housing 1, oil-feed interface 6, it is characterized in that: in described housing 1, be provided with valve body 2, described valve body 2 is by valve head 20, valve rod 21, bonnet 22 is formed, described valve head 20 is positioned at the lower end of described valve body 2, described valve head 20 is established valve seal district 23, on the inwall of described housing 1, establish supporting structure (10), 10 places establish elastic valve plate 5 in described supporting structure, described elastic valve plate 5 is supported by described supporting structure 10, described elastic valve plate 5 is certainly outside to inside by sealing Support 51, elastic region 52 and seat oral region 53 constitute, described seat oral region 53 is provided with the through hole 531 that matches with described valve seal district 23, described through hole 531 is made as the plane with the sealing surface that described valve seal district 23 matches, the conical surface or curved surface, described sealing Support 51 is tightly connected with described housing 1, the described bonnet 22 of described valve body 2 is tightly connected with the upper end of described housing 1, and the inner chamber of described housing 1 is through oil-feed interface 6 and oil pipe 61 and timing pulse fuel source 7 UNICOMs.
See also apertured valve sheet deformation fuel injector for engine shown in Figure 2, described supporting structure 10 is made as ring packing and supports platform 8, and the bottom of described sealing Support 51 and described ring packing support the section shape line of platform 8 sealing contacting points to be made as arc.
See also apertured valve sheet deformation fuel injector for engine shown in Figure 3, in described housing 1, be provided with position structure body 9, the inboard of described position structure body 9 contacts with described valve rod 21 slide-and-guides, the outside of described position structure body 9 and described housing 1 drive fit, described position structure body 9 is provided with fuel gallery 91.
See also apertured valve sheet deformation fuel injector for engine shown in Figure 4, described elastic valve plate 5 is made as flat elastic valve plate 13.
See also apertured valve sheet deformation fuel injector for engine shown in Figure 5, described elastic valve plate 5 is made as scratches formula elastic valve plate 14.
See also apertured valve sheet deformation fuel injector for engine shown in Figure 6, described elastic valve plate 5 is made as downwarp formula elastic valve plate 15.
See also the apertured valve sheet deformation fuel injector for engine shown in Fig. 2,3,4,5 and 6, described elastic valve plate 5 is separated into epicoele 11 and cavity of resorption 12 with the inner chamber of described housing 1, described cavity of resorption 12 is fuel distribution district 3, fuel injection hole 4 is located on the wall in described fuel distribution district 3, described fuel injection hole 4 and described fuel distribution district 3 UNICOMs, described epicoele 11 is through described oil-feed interface 6 and described oil pipe 61 and described timing pulse fuel source 7 UNICOMs.
Claims (5)
1. a motor is with sub-valve sheet deformation fuel injector is arranged, comprise: housing (1), oil-feed interface (6), it is characterized in that: in described housing (1), be provided with valve body (2), described valve body (2) is by valve head (20), valve rod (21), bonnet (22) is formed, described valve head (20) is positioned at the lower end of described valve body (2), described valve head (20) is established valve seal district (23), on the inwall of described housing (1), establish supporting structure (10), locate to establish elastic valve plate (5) in described supporting structure (10), described elastic valve plate (5) is supported by described supporting structure (10), described elastic valve plate (5) is certainly outside to inside by sealing Support (51), elastic region (52) and seat oral region (53) constitute, described seat oral region (53) is provided with the through hole (531) that matches with described valve seal district (23), described through hole (531) is made as the plane with the sealing surface that described valve seal district (23) matches, the conical surface or curved surface, described sealing Support (51) is tightly connected with described housing (1), the described bonnet (22) of described valve body (2) is tightly connected with the upper end of described housing (1), and the inner chamber of described housing (1) is through described oil-feed interface (6) and oil pipe (61) and timing pulse fuel source (7) UNICOM.
2. apertured valve sheet deformation fuel injector for engine according to claim 1, it is characterized in that: described supporting structure (10) is made as ring packing support platform (8), and the section shape line of the top seal contacting point of the bottom of described sealing Support (51) and described ring packing support platform (8) is made as arc.
3. apertured valve sheet deformation fuel injector for engine according to claim 1, it is characterized in that: in described housing (1), be provided with position structure body (9), the inboard of described position structure body (9) contacts with described valve rod (21) slide-and-guide, the outside of described position structure body (9) and described housing (1) drive fit, described position structure body (9) is provided with fuel gallery (91).
4. apertured valve sheet deformation fuel injector for engine according to claim 1, it is characterized in that: described elastic valve plate (5) is made as flat elastic valve plate (13), on scratch formula elastic valve plate (14) or downwarp formula elastic valve plate (15).
5. apertured valve sheet deformation fuel injector for engine according to claim 1, it is characterized in that: described elastic valve plate (5) is separated into epicoele (11) and cavity of resorption (12) with the inner chamber of described housing (1), described cavity of resorption (12) is fuel distribution district (3), fuel injection hole (4) is located on the wall in described fuel distribution district (3), described fuel injection hole (4) and described fuel distribution district (3) UNICOM, described epicoele (11) is through described oil-feed interface (6) and described oil pipe (61) and described timing pulse fuel source (7) UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920151493U CN201391398Y (en) | 2009-04-24 | 2009-04-24 | Pored fuel injector with deformed valve block for motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920151493U CN201391398Y (en) | 2009-04-24 | 2009-04-24 | Pored fuel injector with deformed valve block for motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201391398Y true CN201391398Y (en) | 2010-01-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920151493U Expired - Lifetime CN201391398Y (en) | 2009-04-24 | 2009-04-24 | Pored fuel injector with deformed valve block for motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201391398Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592106B (en) * | 2009-04-24 | 2013-10-30 | 靳北彪 | Apertured valve sheet deformation fuel injector for engine |
-
2009
- 2009-04-24 CN CN200920151493U patent/CN201391398Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592106B (en) * | 2009-04-24 | 2013-10-30 | 靳北彪 | Apertured valve sheet deformation fuel injector for engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100127 Effective date of abandoning: 20090424 |
|
| RGAV | Abandon patent right to avoid regrant |