CN205478049U - Common -rail oil injector assembly - Google Patents
Common -rail oil injector assembly Download PDFInfo
- Publication number
- CN205478049U CN205478049U CN201620191325.7U CN201620191325U CN205478049U CN 205478049 U CN205478049 U CN 205478049U CN 201620191325 U CN201620191325 U CN 201620191325U CN 205478049 U CN205478049 U CN 205478049U
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- China
- Prior art keywords
- valve
- needle
- oil
- storage tank
- common
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- Expired - Fee Related
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Abstract
The utility model discloses a common -rail oil injector assembly, including injector, the setting is at the solenoid valve on injector top, the setting is at the fuel sprayer of injector bottom, the solenoid valve is including the installation body, the installation body sets up on injector's top surface, the first containing Groove has been seted up on the lower surface of the installation body, be provided with the electro -magnet in the the first containing Groove, the below of electro -magnet is provided with armature, be provided with the steel ball on the bottom surface of armature, the fuel sprayer includes needle valve and nozzle valve, the middle part of needle valve is provided with annular flange, the lateral surface of annular flange and nozzle valve's medial surface contact, the top of needle valve is provided with the throttle plate, the second storage tank has been seted up on the bottom surface of throttle plate, the draining hole has been seted up on the bottom surface of second storage tank, the top in draining hole is located the below of steel ball, the oil through has been seted up on control plunger's the bottom surface, oil through and control chamber communicate with each other. The utility model discloses a common -rail oil injector assembly makes through setting up of annular flange and control plunger that its life is longer, the oil spout effect is better.
Description
Technical field
This utility model relates to a kind of fuel injection equipment (FIE), particularly relates to a kind of common-rail injector assembly.
Background technology
Common-rail injector is a kind of zero, automobile accurately controlled fuel injection amount according to pulse signal
Part, existing common-rail injector, generally comprise oil injector body, be arranged on the fuel injection nozzle matching of oil injector body bottom
Part and the electromagnetic valve being arranged on fuel injector top, injector nozzle matching parts includes needle-valve and needle-valve body, the bottom of needle-valve
Being arranged in needle-valve body, the top of needle-valve is arranged in control plunger, owing to controlling have between plunger and needle-valve
Having certain gap, needle-valve the most easily produces crooked, so on the one hand causes needle-valve and control
Produce local friction between plunger or needle-valve body, thus decrease the service life of injector nozzle matching parts and fuel injector,
On the other hand the bottom of needle-valve can not be directed at accurately with nozzle opening thus cause oil spout weak effect.
Because above-mentioned defect, the design people, the most in addition research and innovation, to founding a kind of novel knot
The common-rail injector assembly of structure so that it is have more the value in industry.
Utility model content
For solving above-mentioned technical problem, the purpose of this utility model is to provide one length in service life, oil spout effect
The best common-rail injector assembly.
Common-rail injector assembly of the present utility model, including oil injector body, the electricity that is arranged on oil injector body top
Magnet valve, it is arranged on the atomizer of oil injector body bottom, described oil injector body offers oil-in, described electricity
Magnet valve includes that fixing body, described fixing body are arranged on the end face of oil injector body, and the lower surface of fixing body is opened
It is provided with the first storage tank, in the first storage tank, is provided with electric magnet, and the bottom of electric magnet is arranged on oil spout
In the inner chamber of body, the lower section of described electric magnet is provided with armature, and the bottom surface of described armature is provided with steel ball,
Described atomizer includes needle-valve and needle-valve body, is provided with shoe cream room, described oil storage between described needle-valve body and needle-valve
Chamber connects with oil-in, and the bottom of described needle-valve is arranged in the cavity of needle-valve body, and the top of needle-valve is arranged on
In oil injector body, the middle part of described needle-valve is provided with annular flange flange, the lateral surface of described annular flange flange and needle-valve
Body medial surface contact, needle-valve be provided above choke block, described choke block is fixedly installed on oil injector body
On, the bottom surface of choke block offers the second storage tank, the cross-sectional area at the top of described second storage tank is big
On the cross-sectional area of the bottom of the second storage tank, the bottom surface of the second storage tank, offer oil leak hole, described in let out
Oilhole extends to the upper surface of choke block from the bottom surface of the second storage tank, and the top of oil leak hole is positioned at steel ball
Lower section, be provided with control plunger in described second storage tank, described control plunger is fixedly installed on the second appearance
Put on the medial surface of groove, and control to have between the top of plunger and the bottom surface of the second storage tank certain between
Gap, the top of described needle-valve be slidably disposed on control plunger in, and the lateral surface of needle-valve with control post
The medial surface contact of plug, the bottom surface of described second storage tank, the medial surface of the second storage tank, controls plunger
End face, the end face of needle-valve surround to be formed and control chamber, the bottom surface of described control plunger offer oil through, institute
State oil through and communicate with controlling chamber, between described annular flange flange and control plunger, be provided with spring, described spring
It is enclosed within the lateral surface of needle-valve.
Further, common-rail injector assembly of the present utility model, also include clamping cap, described compression cap sleeve
On needle-valve body, and clamping cap is fixed with oil injector body and is connected.
Further, common-rail injector assembly of the present utility model, the bottom surface of described storage tank is positioned at draining
Offering hemispherical groove at hole, the end face of described needle-valve is the curved surface suitable with hemispherical groove.
Further, common-rail injector assembly of the present utility model, described choke block be provided above pressure ring,
Described pressure ring is fixedly installed on oil injector body.
By such scheme, this utility model at least has the advantage that common-rail injector of the present utility model
Assembly, by being contacted with the medial surface of needle-valve body and the medial surface of control plunger respectively by the lateral surface of needle-valve, makes
Obtain needle-valve and operationally do not have crooked phenomenon, thus avoid needle-valve and needle-valve body or control plunger
Produce the phenomenon of local friction between medial surface, add service life, and the oil spout of fuel injector is imitated
Fruit is more preferably.During specific works, the high pressure fuel part come from common rail conveying passes through oil-in, oil through
Input is to controlling chamber, so that needle-valve moves downward to block needle-valve under the effect of high pressure fuel and spring
Nozzle opening on body, another part high pressure fuel arrives at the nozzle opening of needle-valve body through shoe cream room, due to now
Nozzle opening is blocked by needle-valve, therefore can not oil spout, when oil spout, armature is also upwards picked up by electric magnet energising,
Steel ball on armature rises and opens oil leak hole the most therewith, high pressure fuel just from oil leak hole export, needle-valve under
Rise under the effect of portion's high pressure fuel thus open nozzle opening and realize oil spout.
Described above is only the general introduction of technical solutions of the utility model, in order to it is new to better understand this practicality
The technological means of type, and can be practiced according to the content of description, below with preferable reality of the present utility model
After executing example and coordinating accompanying drawing to describe in detail such as.
Accompanying drawing explanation
Fig. 1 is the structural representation of common-rail injector assembly of the present utility model；
Fig. 2 is the enlarged drawing in A portion in Fig. 1；
Fig. 3 is the structural representation of choke block.
Detailed description of the invention
Below in conjunction with the accompanying drawings and embodiment, detailed description of the invention of the present utility model is described in further detail.
Following example are used for illustrating this utility model, but are not limited to scope of the present utility model.
Seeing Fig. 1 to Fig. 3, a kind of common-rail injector assembly of this utility model one preferred embodiment, including spray
Oil body 1, it is arranged on the electromagnetic valve 2 on oil injector body top, is arranged on the atomizer 3 of oil injector body bottom,
Offering oil-in 4 on oil injector body, electromagnetic valve includes fixing body 5, and fixing body is arranged on the top of oil injector body
On face, the lower surface of fixing body offers the first storage tank, in the first storage tank, be provided with electric magnet 6, and
And the bottom of electric magnet is arranged in the inner chamber of oil injector body, the lower section of electric magnet is provided with armature 7, armature
Being provided with steel ball 8 on bottom surface, atomizer includes needle-valve 9 and needle-valve body 10, is provided with between needle-valve body and needle-valve
Shoe cream room 11, shoe cream room connects with oil-in, and the bottom of needle-valve is arranged in the cavity of needle-valve body, needle-valve
Top is arranged in oil injector body, and the middle part of needle-valve is provided with annular flange flange 12, the lateral surface of annular flange flange with
Needle-valve body medial surface contact, needle-valve be provided above choke block 13, choke block is fixedly installed on fuel injector
On body, the bottom surface of choke block offering the second storage tank 14, the cross-sectional area at the top of the second storage tank is big
Oil leak hole 15, draining is offered on the cross-sectional area of the bottom of the second storage tank, the bottom surface of the second storage tank
Hole extends to the upper surface of choke block from the bottom surface of the second storage tank, and the top of oil leak hole is positioned at steel ball
Lower section, is provided with control plunger 16 in the second storage tank, control plunger and be fixedly installed on the interior of the second storage tank
On side, and control to have between the top of plunger and the bottom surface of the second storage tank certain gap, needle-valve
Top be slidably disposed on control plunger in, and the lateral surface of needle-valve with control plunger medial surface connect
Touch, the bottom surface of the second storage tank, the medial surface of the second storage tank, the control end face of plunger, the end face of needle-valve
Surrounding to be formed and control chamber 17, control to offer on the bottom surface of plunger oil through 18, oil through communicates with controlling chamber,
Being provided with spring 19 between annular flange flange and control plunger, spring housing is on the lateral surface of needle-valve.
During specific works, the high pressure fuel part come from common rail conveying is inputted by oil-in, oil through
To controlling chamber, so that needle-valve moves downward to block on needle-valve body under the effect of high pressure fuel and spring
Nozzle opening, another part high pressure fuel through shoe cream room arrive needle-valve body nozzle opening at, due to now oil spout
Hole is blocked by needle-valve, therefore can not oil spout, when oil spout, armature is also upwards picked up by electric magnet energising, rank
Steel ball on ferrum rises and opens oil leak hole the most therewith, and high pressure fuel just exports from oil leak hole, and needle-valve is in bottom
Rise under the effect of high pressure fuel thus open nozzle opening and realize oil spout.
As preferably, common-rail injector assembly of the present utility model, also include clamping cap 20, clamping cap is enclosed within
On needle-valve body, and clamping cap is fixed with oil injector body and is connected.
As preferably, common-rail injector assembly of the present utility model, the bottom surface of storage tank is positioned at oil leak hole
Offering hemispherical groove 21, the end face of needle-valve is the curved surface suitable with hemispherical groove.
As preferably, common-rail injector assembly of the present utility model, choke block be provided above pressure ring 22,
Pressure ring is fixedly installed on oil injector body.
The above is only preferred implementation of the present utility model, is not limited to this utility model, should
When pointing out, for those skilled in the art, without departing from this utility model know-why
On the premise of, it is also possible to making some improvement and modification, these improve and modification also should be regarded as this utility model
Protection domain.
Claims (4)
1. a common-rail injector assembly, the electromagnetic valve including oil injector body, being arranged on oil injector body top,
It is arranged on the atomizer of oil injector body bottom, it is characterised in that: offer oil-in on described oil injector body,
Described electromagnetic valve includes that fixing body, described fixing body are arranged on the end face of oil injector body, the following table of fixing body
Offer the first storage tank on face, in the first storage tank, be provided with electric magnet, and the bottom of electric magnet is arranged
In the inner chamber of oil injector body, the lower section of described electric magnet is provided with armature, and the bottom surface of described armature is arranged
There are steel ball, described atomizer to include needle-valve and needle-valve body, between described needle-valve body and needle-valve, are provided with shoe cream room,
Described shoe cream room connects with oil-in, and the bottom of described needle-valve is arranged in the cavity of needle-valve body, the top of needle-valve
End is arranged in oil injector body, and the middle part of described needle-valve is provided with annular flange flange, the outside of described annular flange flange
Face contacts with the medial surface of needle-valve body, needle-valve be provided above choke block, described choke block is fixedly installed on
On oil injector body, the bottom surface of choke block offers the second storage tank, the horizontal stroke at the top of described second storage tank
Sectional area, more than the cross-sectional area of the bottom of the second storage tank, the bottom surface of the second storage tank offers oil leak hole,
Described oil leak hole extends to the upper surface of choke block, and the position, top of oil leak hole from the bottom surface of the second storage tank
In the lower section of steel ball, being provided with control plunger in described second storage tank, described control plunger is fixedly installed on
On the medial surface of the second storage tank, and control have one between the top of plunger and the bottom surface of the second storage tank
Fixed gap, the top of described needle-valve be slidably disposed on control plunger in, and the lateral surface of needle-valve with
Control the medial surface contact of plunger, the bottom surface of described second storage tank, the medial surface of the second storage tank, control
The end face of plunger, the end face of needle-valve surround to be formed and control chamber, and the bottom surface of described control plunger offers logical oil
Hole, described oil through communicates with controlling chamber, is provided with spring, institute between described annular flange flange and control plunger
State spring housing on the lateral surface of needle-valve.
Common-rail injector assembly the most according to claim 1, it is characterised in that: also include clamping cap,
Described clamping cap is enclosed within needle-valve body, and clamping cap is fixed with oil injector body and is connected.
Common-rail injector assembly the most according to claim 1, it is characterised in that: the end of described storage tank
Being positioned on face at oil leak hole and offer hemispherical groove, the end face of described needle-valve is suitable with hemispherical groove
Curved surface.
Common-rail injector assembly the most according to claim 1, it is characterised in that: described choke block upper
Side is provided with pressure ring, and described pressure ring is fixedly installed on oil injector body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620191325.7U CN205478049U (en) | 2016-03-13 | 2016-03-13 | Common -rail oil injector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620191325.7U CN205478049U (en) | 2016-03-13 | 2016-03-13 | Common -rail oil injector assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205478049U true CN205478049U (en) | 2016-08-17 |
Family
ID=56657533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620191325.7U Expired - Fee Related CN205478049U (en) | 2016-03-13 | 2016-03-13 | Common -rail oil injector assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205478049U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361135A (en) * | 2018-02-09 | 2018-08-03 | 中国第汽车股份有限公司 | A kind of common-rail injector |
| CN108397325A (en) * | 2018-02-09 | 2018-08-14 | 中国第汽车股份有限公司 | A kind of common-rail injector throttling control valve |
| CN111577498A (en) * | 2020-05-18 | 2020-08-25 | 上海工程技术大学 | Common rail oil injector based on two-position three-way principle |
| CN111677612A (en) * | 2020-06-24 | 2020-09-18 | 蒋惠 | High-capacity quantitative fuel injection valve with inductance circuit |
-
2016
- 2016-03-13 CN CN201620191325.7U patent/CN205478049U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361135A (en) * | 2018-02-09 | 2018-08-03 | 中国第汽车股份有限公司 | A kind of common-rail injector |
| CN108397325A (en) * | 2018-02-09 | 2018-08-14 | 中国第汽车股份有限公司 | A kind of common-rail injector throttling control valve |
| CN111577498A (en) * | 2020-05-18 | 2020-08-25 | 上海工程技术大学 | Common rail oil injector based on two-position three-way principle |
| CN111577498B (en) * | 2020-05-18 | 2021-12-14 | 上海工程技术大学 | Common rail oil injector based on two-position three-way principle |
| CN111677612A (en) * | 2020-06-24 | 2020-09-18 | 蒋惠 | High-capacity quantitative fuel injection valve with inductance circuit |
| CN111677612B (en) * | 2020-06-24 | 2021-07-13 | 苏州宝凡电子科技有限公司 | High-capacity quantitative fuel injection valve with inductance circuit |
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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: 20160817 Termination date: 20210313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |