CN110005561A - A kind of plane rotational flow nozzle - Google Patents
A kind of plane rotational flow nozzle Download PDFInfo
- Publication number
- CN110005561A CN110005561A CN201910338635.5A CN201910338635A CN110005561A CN 110005561 A CN110005561 A CN 110005561A CN 201910338635 A CN201910338635 A CN 201910338635A CN 110005561 A CN110005561 A CN 110005561A
- Authority
- CN
- China
- Prior art keywords
- orifice
- spool
- eddy flow
- medium
- valve body
- 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.)
- Withdrawn
Links
Classifications
-
- 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
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- 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
- F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
- F02M61/163—Means being injection-valves with helically or spirally shaped grooves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Valves (AREA)
Abstract
The present invention relates to a kind of plane rotational flow nozzles, including valve body, spool, valve seat, the upper end of valve body is equipped with oil inlet, lower end is connected with valve seat, orifice is offered on valve seat, spool is arranged in valve body, and lower-end cap is located on orifice, medium channel is formed between spool and valve body, spool can move up and down in valve body so that medium channel is connected to or closes with orifice, it further include swirl-flow devices, it is intracavitary that the type that sets is arranged in valve body in swirl-flow devices, swirl-flow devices accelerate the medium to come from medium channel, when spool moves up and medium channel is connected to orifice, medium high speed is set to enter orifice atomization.What the present invention innovated is additionally arranged the design of eddy flow block, makes medium by the influent stream slot on eddy flow block, and deflector hole sprays into eddy flow block bottom, by unique diversion design of eddy flow block bottom, medium is guided to accelerate into the orifice of valve seat by diversion channel, enhances atomizing effect.
Description
Technical field
The invention belongs to technical field of automobile engine, and in particular to a kind of plane rotational flow nozzle is suitable for high-low pressure, low
Pressure and a variety of media.
Background technique
Critical component one of of the atomizer as engine, its work quality will seriously affect the performance of engine.?
In existing automobile engine, people use various types of nozzles to improve atomization quality, such as high-low pressure emple hole, whirlpool
Flow nozzle etc..
The utility model patent of Publication No. CN2606192 specifically discloses a kind of electric fuel spray injector of vehicle, includes valve
Body, jet orifice plate, bulb, shell, the spray orifice in jet orifice plate are 2-3.The patent is simple with structure, burning is abundant, to ring
The advantages that border pollution is small.But this porous high-low pressure emple hole is due to being solid injection, spray pressure it is lower when, mist
Change that performance is poor, the requirement to injection pressure is very high, and it is only smaller in spray orifice and when effluxvelocity is higher, just have preferable
Atomization.
Publication No. is that the patent of invention of CN 101737218A specifically discloses a kind of nozzle for direct fuel-injection engine, is wrapped
It includes: shell, valve rod, nozzle opening, fuel feed hole and oil circuit, in which: nozzle opening and fuel feed hole are respectively arranged at the both ends of shell, oil circuit
In shell and both ends are connected with fuel feed hole and nozzle opening respectively, and one end of valve rod is set to the side of the nearly fuel feed hole of shell
Center that is internal and being located at several oil circuits, valve rod are equipped with several helicla flutes, and the top of valve rod and valve seat are spherical structure.It should
Patent can guarantee biggish spray cone angle under low injection pressure and higher back pressure, to promote the atomization of nozzle.But
The nozzle atomization limited capacity that the patent is promoted, needs to be optimized.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a kind of adaptation high-low pressure oil inlet machine
The plane rotational flow nozzle of structure, innovation are additionally arranged the design of eddy flow block, make medium by the influent stream slot on eddy flow block, and deflector hole sprays into
Eddy flow block bottom guides medium to accelerate into the orifice of valve seat by diversion channel by unique diversion design of eddy flow block bottom,
Enhance atomizing effect.
In order to solve the above technical problems, a kind of technical solution that the present invention takes is:
The upper end of a kind of plane rotational flow nozzle, including valve body, spool, valve seat, valve body is equipped with oil inlet, lower end and valve seat phase
Connection offers orifice on valve seat, and spool is arranged in valve body, and lower-end cap is located on orifice, spool and valve body it
Between form medium channel, spool can move up and down in valve body so that medium channel is connected to or closes with orifice, further includes
Swirl-flow devices, swirl-flow devices are arranged in valve body that the type that sets is intracavitary, and swirl-flow devices add the medium to come from medium channel
Speed makes medium high speed enter orifice atomization when spool moves up and medium channel is connected to orifice.
Preferably, swirl-flow devices include eddy flow block, and the top of valve seat is arranged in eddy flow block, and center is equipped with through-hole, spool
Lower end pass through through-hole lid be located on orifice, deflector hole up and down, the lower end surface of eddy flow block are offered on eddy flow block
It is equipped with the diversion channel being connected with deflector hole, diversion channel is changed flow direction of medium in the same plane, and final
To center convergence, unique bottom tapping design, guidance medium accelerates into valve seat orifice, enhancing atomization by diversion channel.
It is further preferred that the upper surface of eddy flow block is equipped with influent stream slot, deflector hole is located within the scope of influent stream slot, is medium
It advances and direction is provided, enter deflector hole conducive to medium.
It is further preferred that the opening shape of influent stream slot is polygon or curvilinear figure, more preferably fan-shaped, opening area
Greatly, it can accommodate and guide more multimedium.
Preferably, the shape of eddy flow block is the frustum of a cone, cylindrical body or cuboid, more preferably cylindrical body, setting in valve body
With the block-shaped type chamber being adapted to of eddy flow, valve body and eddy flow block are tightly connected.
Preferably, deflector hole is the straight hole being vertically arranged up and down or threaded hole, i.e., the inner wall of deflector hole is to face directly, cambered surface or
Helicoid.Meanwhile deflector hole can be arranged on the ontology on the outer wall of eddy flow block or between eddy flow block inside and outside wall.
Preferably, the quantity of deflector hole is at least two, and is uniformly distributed on eddy flow block, guarantees each section of pressure medium
Stability, reach the consistency of atomizing effect each time.
Preferably, the cross sectional shape of deflector hole is polygon or curvilinear figure, can be circle, triangle, square etc..
Preferably, the quantity of influent stream slot and the quantity of deflector hole are equal, i.e. the corresponding deflector hole of an influent stream slot.
Preferably, diversion channel is arranged along the center single direction rotation of eddy flow block.
It is further preferred that diversion channel is the straight shape groove or arc groove that ecto-entad extends.
Preferably, the quantity of diversion channel is more than or equal to the quantity of deflector hole, the i.e. corresponding one or more point of a deflector hole
Chute.
Preferably, spool includes ontology and the sharp body that ontology lower end is arranged in, sharp body along the lower end of ontology downwards to
A bit converged on body central axis extended line, sharp body and valve seat is inside extended up to be tightly connected by primary sealing area,
Primary sealing area is located at the top of orifice.
The present invention also provides another technical solution:
A kind of automobile, including nozzle as described above.
Due to the use of above technical scheme, the invention has the following advantages over the prior art:
1, what the present invention innovated is additionally arranged the design of eddy flow block, makes medium by the influent stream slot on eddy flow block, and deflector hole sprays into eddy flow
Block bottom guides medium to accelerate into the orifice of valve seat, enhancing by diversion channel by unique diversion design of eddy flow block bottom
Atomizing effect；
2, conventional ball valve is updated to needle-valve by the present invention, and ball valve core is completed using welding, can there is a fit clearance, and needle-valve valve
For core using processing is integrally formed, there is no welding cooperations, better assure that the conductibility of gasoline, keep atomization uniform；
3, the pointed design of valve core of needle valve bottom of the present invention when spool and valve seat are in close state, make in gravity by remaining gasoline
With lower automatic remittance valve core of needle valve apical location, avoids blocking orifice after residual gasoline, impurity hardening are dry and hard, influence atomization effect
Fruit.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the longitudinal sectional view of Fig. 1；
Fig. 3 is the partial enlarged view of Fig. 2；
Fig. 4 is the structural schematic diagram one of eddy flow block；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the longitudinal sectional view of Fig. 4；
Fig. 7 is the structural schematic diagram two of eddy flow block；
Fig. 8 is the top view of Fig. 7；
Fig. 9 is the structural schematic diagram of valve seat；
Figure 10 is the longitudinal sectional view of Fig. 9；
Wherein: 1, valve body；2, spool；21, ontology；22, sharp body；3, valve seat；31, orifice；32, the first rotary table；33, the second circle
Platform；4, eddy flow block；41, influent stream slot；42, deflector hole；43, diversion channel；5, chamfering；6, boss；61, recessed portion；62, eddy flow area；
63, pointed nose.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and embodiments.For clearer disclosure, in the present invention
"upper", "lower" are to walk always to define relative to medium.It is defined far from orifice in attached drawing and close to the position of components of oil inlet
For "upper", close to orifice and the position of components far from oil inlet is defined as "lower" in attached drawing."inner", "outside" be relative to valve
The distance of core defines.The position of each element close to spool is defined as the "inner" of the element, each member in attached drawing in attached drawing
Part is defined as the "outside" of the element far from the position of spool.
As shown in attached drawing 1 to attached drawing 10, a kind of plane rotational flow nozzle of the present invention, including valve body 1, spool 2, valve seat 3, eddy flow
Block 4.
Valve body 1 is the interior tubular structure for setting type chamber, and end is equipped with oil inlet thereon, and lower end is connected with valve seat 3.
Valve seat 3 is cylindrical structure, and the lower end of valve body 1 is set in outside valve seat 3.Valve body 1 and valve seat 3 are tightly connected.Valve
The lower end of seat 3 is flushed with the lower end of valve body 1.The lower end design for changing valve body 1 herein, with valve seat 3 in the prior art
It is connect with the boss of valve body 1, is changed to the outside that valve body 1 is set in valve seat 3 completely, valve seat 3 is completely encapsulated in valve body 1
Face matches valve body 1 more preferably with valve seat 3, favorable sealing property.The inside of valve seat 3 is successively arranged the first rotary table 32 from top to bottom
The opening and orifice 31 of 33 shape of shape and the second rotary table, the first rotary table 32 and the second rotary table 33 are up big and down small setting, and first
The center of circle of rotary table 32 and the second rotary table 32 is the point on the central axis of valve seat 3.Orifice 31 is the central axis for deviateing valve seat 3
The inclined hole of line, the center of circle of end is still in the central axis of valve seat 3 thereon.
The type chamber lower part of valve body 1 is installed on eddy flow block 4, and the top of valve seat 3 is arranged in eddy flow block 4, and eddy flow block 4 is cylindrical body
The center of structure, eddy flow block 4 is equipped with through-hole.Valve body 1 and eddy flow block 4 are tightly connected.
Spool 2 is arranged in valve body 1, forms medium channel between spool 2 and valve body 1.Spool 2 includes ontology 21 and setting
Sharp body 22 in 21 lower end of ontology, sharp body 22 are extended downwardly and inwardly along the lower end of ontology 21 until converging to 21 central axis of ontology
A dot shape on line extended line is like needle-like structures.The through-hole lid that sharp body 22 passes through on eddy flow block 4 is located on orifice 31, and point
The side (primary sealing area) of body 22 and the second rotary table 33 is tightly connected.Eddy flow block 4 carries out the medium to come from medium channel
It shunts and accelerates, spool 2 can be worked under the action of solenoid valve with 1 second 10-20 times open and-shut mode up and down, after spool 2 is opened
The gap that 0.05-0.2mm is formed with primary sealing area makes medium high speed enter the orifice 31 of valve seat 3, realizes atomization.
Such as attached drawing it is found that in the present embodiment, ontology 21 is located in the through-hole of eddy flow block 4 and can move up and down wherein.
It is worth noting that, the distance of ontology 21 closest to the hole wall of eddy flow block 4 is smaller more when ontology 21 moves up and down in through-holes
Good, preferably less than 0.02mm, the more preferably diameter of ontology 21 are equal to the diameter of through-hole, are arranged such and guarantee adequately to be situated between
Matter flows into orifice 31 without thus place.
In the present embodiment, 3 influent stream slots 41, influent stream slot 41 are circumferentially uniformly provided on the upper surface of eddy flow block 4
Opening shape be sector, 3 fan-shaped boss are then formed between 3 influent stream slots 41.The fan-shaped big arc by outer end of influent stream slot 41
With the small arc of inside and the curvilinear figure of line segment composition between the two.The big arc of outer end takes one section on the outer wall of eddy flow block 4.
Vertical deflector hole 42 up and down is offered on eddy flow block 4 in the range of influent stream slot 41.Influent stream slot 41 and deflector hole 42 1
One is corresponding, and deflector hole 42 is 3 total, and is separately positioned on the center of influent stream slot 41, the ontology between the inside and outside wall of eddy flow block 4
On be uniformly distributed.The cross section of deflector hole 42 is circle.The lower end surface of eddy flow block 4 is equipped with the shunting being connected with deflector hole 42
Slot 43, diversion channel 43 are changed flow direction of medium in the same plane, and finally to center convergence.
In the present embodiment, the lower end surface of eddy flow block 4 is equipped with the boss 6 being downwardly extending.Boss 6 is 6, each
Independently of one another, it without crosspoint, is evenly spaced apart on the lower end surface for being distributed in eddy flow block 4.3 deflector holes 42 are located at interval setting
3 boss 6 in the range of.Each boss 6 includes one end circular arc on the outer wall of eddy flow block 4, from the both ends of circular arc by eddy flow
The outer wall of block 4 extends inwardly to two sides of inner wall, and side is perpendicular, and the center single direction rotation along eddy flow block 4 is arranged.
Diversion channel 43 is formed between the adjacent side of two neighboring boss 6, is amounted to and is formed 6 diversion channels 43.In order to by deflector hole 42 with
Diversion channel 43 is connected, and recessed portion 61 is equipped in the outer end of the boss 6 where each deflector hole 42, so that each deflector hole 42
Corresponding two diversion channels 43 for being connected to adjacent two sides.Recessed portion 61 is by the plane or curved surface of deflector hole 42 with one to boss 6
It is cut vertically, and removes perimeter and formed.In the present embodiment, recessed portion 61 is the extrados with one with boss 6
Parallel cambered surface cuts boss 6 vertically, and removes perimeter and formed.Preferably accelerate effect in order to obtain
Fruit, it is corresponding with recessed portion 61 close to being equipped with eddy flow area at the position of deflector hole 42 on the boss 6 where each deflector hole 42
62, recess is formed downwards in eddy flow area 62.The separate deflector hole corresponding with recessed portion 61 on the boss 6 where each deflector hole 42
Pointed nose 63 is then formed at 42 position, at this point, boss 6 removes recessed portion 61 and eddy flow area 63, shape is similar to " V " type.
On the one hand the setting in eddy flow area 62 can form eddy flow, on the one hand can also extend medium motion path.
In the present embodiment, it is provided with chamfering 5 on the upper end of eddy flow block 4, flows into influent stream slot 41 convenient for medium, be medium
Direction of travel is provided.
The present invention also provides a kind of automobile, including nozzle as described above.
Oil inlet principle of the invention is as follows:
Medium enters oil inlet from oil inlet pipe, through the influent stream slot 41 on medium channel to eddy flow block 4, is entered by 42 direct current of deflector hole
The diversion channel 43 of bottom flows into 32 space of the first rotary table on valve seat 3, and spool 2 and 3 cambered surface of valve seat seal, and spool 2 is in electromagnetism
It is worked under valve action with 1 second 10-20 times open and-shut mode up and down, spool 2 forms the gap of 0.05-0.2mm with valve seat 3 after opening
Medium high speed is set to enter the orifice 31 of valve seat 3, to realize novel atomized.
The present invention is described in detail above, the explanation of embodiment be merely used to help understand method of the invention and
Its core concept, its object is to allow the personage for being familiar with this field technology to can understand the content of the present invention and implement it accordingly, and
The protection scope that the present invention cannot be limited in this way.Any equivalent change or modification in accordance with the spirit of the invention should all be contained
Lid is within protection scope of the present invention.
Claims (10)
1. a kind of plane rotational flow nozzle, including valve body, spool, valve seat, the upper end of the valve body is equipped with oil inlet, lower end with
The valve seat is connected, and orifice is offered on the valve seat, the spool is arranged in the valve body, and lower-end cap is located at
On the orifice, form medium channel between the spool and valve body, the spool can be moved up and down in valve body so that
Medium channel is connected to or closes with orifice, it is characterised in that: further includes swirl-flow devices, the swirl-flow devices are arranged in the valve
Set that type is intracavitary in body, the swirl-flow devices accelerate the medium to come from medium channel, move up and are situated between in spool
When matter channel is connected to orifice, medium high speed is made to enter orifice atomization.
2. plane rotational flow nozzle according to claim 1, it is characterised in that: the swirl-flow devices include eddy flow block, described
The top of the valve seat is arranged in eddy flow block, and center is equipped with through-hole, and the lower end of the spool is located at described across through-hole lid
On orifice, deflector hole up and down is offered on the eddy flow block, the lower end surface of the eddy flow block is equipped with and deflector hole
The diversion channel being connected, the diversion channel are changed flow direction of medium in the same plane, and finally to center convergence.
3. plane rotational flow nozzle according to claim 2, it is characterised in that: the upper surface of the eddy flow block is equipped with influent stream
Slot, the deflector hole are located within the scope of the influent stream slot.
4. plane rotational flow nozzle according to claim 3, it is characterised in that: the opening shape of the influent stream slot is polygon
Or curvilinear figure.
5. plane rotational flow nozzle according to claim 2, it is characterised in that: the shape of the eddy flow block is the frustum of a cone, circle
Cylinder or cuboid.
6. plane rotational flow nozzle according to claim 2, it is characterised in that: the quantity of the deflector hole is at least two,
And it is uniformly distributed on the eddy flow block.
7. plane rotational flow nozzle according to claim 2, it is characterised in that: the cross sectional shape of the deflector hole is polygon
Or curvilinear figure.
8. plane rotational flow nozzle according to claim 2, it is characterised in that: the diversion channel is along the center of the eddy flow block
Single direction rotation setting.
9. plane rotational flow nozzle according to claim 2, it is characterised in that: the spool includes ontology and is arranged in ontology
The sharp body of lower end, the point body is extended downwardly and inwardly along the lower end of the ontology to be extended until converging to body central axis
On line a bit, by primary sealing area sealed connection, primary sealing area is located at the top of orifice for the point body and valve seat.
10. a kind of automobile, including the nozzle as described in claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338635.5A CN110005561A (en) | 2019-04-25 | 2019-04-25 | A kind of plane rotational flow nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910338635.5A CN110005561A (en) | 2019-04-25 | 2019-04-25 | A kind of plane rotational flow nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110005561A true CN110005561A (en) | 2019-07-12 |
Family
ID=67174185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910338635.5A Withdrawn CN110005561A (en) | 2019-04-25 | 2019-04-25 | A kind of plane rotational flow nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110005561A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205862A1 (en) * | 2021-03-28 | 2022-10-06 | 南岳电控衡阳工业技术股份有限公司 | Low-hydraulic-pressure swirl injector |
-
2019
- 2019-04-25 CN CN201910338635.5A patent/CN110005561A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022205862A1 (en) * | 2021-03-28 | 2022-10-06 | 南岳电控衡阳工业技术股份有限公司 | Low-hydraulic-pressure swirl injector |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190712 |
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| WW01 | Invention patent application withdrawn after publication |