CN201363211Y - Dual fuel air intake manifold - Google Patents
Dual fuel air intake manifold Download PDFInfo
- Publication number
- CN201363211Y CN201363211Y CNU2008203032038U CN200820303203U CN201363211Y CN 201363211 Y CN201363211 Y CN 201363211Y CN U2008203032038 U CNU2008203032038 U CN U2008203032038U CN 200820303203 U CN200820303203 U CN 200820303203U CN 201363211 Y CN201363211 Y CN 201363211Y
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- fuel
- intake manifold
- fitting seat
- mounting hole
- nozzle
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Abstract
The utility model relates to a part for an automobile engine, in particular to an air intake manifold for a dual fuel automobile engine. The air intake manifold comprises an air intake manifold body which is equipped with an air intake manifold connecting seat for connection, and a fuel nozzle mounting seat and a fuel rail mounting seat which are arranged at the position close to the air intake manifold connecting seat are formed integrally with the air intake manifold body, wherein the fuel nozzle mounting seat consists of two groups of nozzle mounting holes, the fuel rail mounting seat is disposed above an air intake passage, and the fuel rail mounting seat is provided with two groups of fuel rail mounting holes. The dual fuel air intake manifold has the advantages that two groups of fuel nozzles are used for providing two fuels, the fuel nozzle mounting holes can not produce fuel film deposition and covering between the two groups of the fuel nozzles, and the performance of the fuel nozzles is unaffected, thereby solving the technical problems existing in the prior art that single point injection is adopted, simultaneously the fuel nozzle mounting holes under the air intake manifold body are likely to produce fuel film deposition and covering, and then the performance of the fuel nozzles under the air intake manifold body is affected.
Description
Technical field
The present invention relates to a kind of motor car engine part, relate in particular to a kind of intake manifold of using on the dual-fuel automobile motor.
Background technique
Along with the development of industrial technology, automobile becomes the important means of transportation of people.Main automotive fuel is a gasoline at present, is non-renewable fuel, and can pollutes environment that novel automotive fuel is that people expect.Now the fuel that uses of motor car engine begins variation, and the research and development of double fuel and multi-fuel automobile are used also more and more, with simple, easily row, convenient, cheaply way to make motor can use two or more fuel be very necessary.
The fuel that engine combustion uses, the fuel nozzle through being installed on the intake manifold sprays, and enters into motor with vaporific form.Nozzle generally is arranged in directly over the intake manifold, and one group of nozzle is generally only arranged, and a kind of injection of fuel can only be provided.To using dual-fuel motor car engine intake manifold, there is employing a spray-hole to be set now, connects the nozzle of second fuel at the intake manifold resonant cavity.This structural design is fairly simple, but because be single-point discharge, fuel consumption is big; Two row's nozzle mounting holes are set in addition, as Chinese patent application: " a kind of intake manifold of dual-fuel engine (CN101131138) ", it includes intake manifold air flue and intake manifold flange dish, directly over the intake manifold air flue, near intake manifold flange dish place integrally casting first kind of fuel nozzle installation step arranged, be processed with the nozzle mounting hole of first fuel and the nozzle mounting hole of first kind of fuel on it, in addition below the intake manifold air flue, going out to go back integrally casting near the intake manifold flange dish has second kind of fuel nozzle installation step, and the nozzle that is processed with second kind of fuel on it is total to the nozzle mounting hole of rail mounting hole and second kind of fuel.The realization of this features simple structure the installation of rails and the designs of two kinds of different fuel nozzle position of mounting hole altogether of two kinds of different fuel nozzles, but this structure is separately positioned on two kinds of fuel nozzles the above and below of air inlet air flue, the long-term use, the fuel nozzle mounting hole of below can produce the oil film deposition, cover, thus the performance of influence below fuel nozzle.And altogether the rail mounting hole is set together with the nozzle mounting hole, need carry out big improvement to original structure, installing space and arrange and all need the redesign consideration.In addition, the oily rail mounting hole of second kind of fuel and the nozzle mounting hole site of second kind of fuel bring great inconvenience for installation and service work in the below of intake manifold air flue, and integral arrangement is unreasonable.
Summary of the invention
The present invention mainly provides and a kind ofly utilizes two groups of fuel nozzles that two kinds of fuel are provided, and between two groups of fuel nozzles fuel nozzle mounting hole generation oil film deposition, covering can not appear, influence the phenomenon of fuel nozzle performance, help fuel atomizing, improve fuel economy, the double-fuel inlet manifold that firing effect is good; Solve existing in prior technology and just adopt single-point discharge
The fuel nozzle mounting hole of below may produce the oil film deposition, cover simultaneously, thus the technical problem of the performance of influence below fuel nozzle.
The present invention also provides a kind of reasonable structural arrangement simultaneously, and versatility is good, installs, overhauls double-fuel inlet manifold easily; Solve the irrational technical problem of existing in prior technology intake manifold integral arrangement.
Above-mentioned technical problem of the present invention is mainly solved by following technical proposals: a kind of double-fuel inlet manifold, comprise the intake manifold body, on the intake manifold body, be provided with to connect and use the intake manifold connecting base, in the intake manifold body, be provided with the air inlet air flue, in position near the intake manifold connecting base, be provided with and integrated fuel nozzle fitting seat of intake manifold body and oily rail fitting seat, described nozzle fitting seat is arranged on the top of air inlet air flue, and described fuel nozzle fitting seat comprises two groups of nozzle mounting holes, described oily rail fitting seat is arranged on the top of air inlet air flue, and described oily rail fitting seat is provided with two groups of oil rail mounting holes.Fuel nozzle fitting seat, oily rail fitting seat and intake manifold are that integrally casting forms.The fuel nozzle fitting seat comprises two groups of nozzle mounting holes, one group of nozzle mounting hole is corresponding to a kind of fuel nozzle, all be arranged on the top of air inlet air flue, the direction of spraying all is to spray in the last direction air inlet air flue by the air inlet air flue, vaporific fuel fume is ejected into the back side of engine intake valve, fuel fume can well mix with air, two groups of spray-holes do not interfere with one another, avoided row's nozzle mounting hole to be arranged on the top of air inlet air flue, one row's nozzle mounting hole is arranged on the below of air inlet air flue, the long-term use, the fuel nozzle mounting hole of below produce the oil film deposition, cover, thereby influence the phenomenon of nozzle performance.Be provided with oily rail fitting seat simultaneously, on oily rail fitting seat, arrange former and later two mounting holes,, arrange corresponding oily rail, make full use of limited space corresponding to different fuel, and with oily rail fixation.Two groups of nozzle mounting holes and two groups of oil rail mounting holes are arranged neat appearance.
As preferably, the quantity of described fuel nozzle fitting seat is identical with the quantity of air inlet air flue, the nozzle fitting seat be arranged in the air inlet air flue directly over, two mounting holes arranging before and after each nozzle fitting seat is provided with, two mounting holes are cylindric and former and later two mounting holes are ladder-like arranged, the axes intersect of described two mounting holes, and two mounting hole crossing point of axes overlap with the seat center, hole of intake manifold connecting base.With the nozzle fitting seat be arranged in the air inlet air flue directly over, can guarantee that fuel is ejected in the air inlet air flue with the angle of the best, strengthen the fuel atomizing effect, fully mix with air, improve the combustion efficiency of fuel.Be ladder-like arranged before and after the nozzle mounting hole on the nozzle fitting seat, two groups of nozzle mounting holes separately are convenient to cooperate installation with corresponding oily rail, connection and reasonable arrangement, neat, and it is convenient to process, overhaul.
As preferably, what connect in the described front-seat fuel nozzle mounting hole is methanol fuel nozzle as main driving fuel, and what connect in the row's fuel nozzle mounting hole of back is Fuel Petroleum nozzle as starting and guarantee fuel.Described intake manifold connecting base is used flange plate for connecting, angle between the axis of described front-seat fuel nozzle mounting hole and the end face of flange plate is 42 °-48 °, and the angle between the axis of described back row's fuel nozzle mounting hole and the end face of flange plate is 65 °-70 °.The connecting base of intake manifold is the flange plate form, is convenient to the fixing of intake manifold and motor.Two kinds of fuel used in the present invention are respectively methyl alcohol and gasoline, and wherein methyl alcohol is main fuel.Methyl alcohol is the first road product of coal processing, the low and aboundresources of cost of production.As main fuel, the methyl alcohol arrangement of nozzles at the front row, is guaranteed best spray angle, improve fuel availability.Gasoline is as auxiliary fuel, mainly is need of the reserve when satisfying automotive ignition starting and methyl alcohol and use up, and arranges so petrol jet is arranged in afterwards, and its spray angle allows a little skew.This setting type reasonable use limited space, farthest improved fuel availability, and be convenient to the installation and the maintenance of two groups of nozzles.
As preferably, described oily rail fitting seat branch is listed in the both sides of body, between both sides air inlet air flue, and two mounting holes arranging before and after each fitting seat is provided with, two mounting hole site are on same mounting plane, and the axis of two mounting holes is parallel to each other.Two mounting hole site are convenient to processing on same mounting plane, corresponding to front and back two row's nozzle mounting holes, two oily rail mounting holes are installed different fuel oil rails respectively, can guarantee respectively to organize the installation precision of fuel nozzle, the installation and the maintenance of convenient every group of nozzle, oily rail.
As preferably, the length of described oily rail fitting seat is 30mm-40mm.The length of oil rail fitting seat need reduce the space hold rate to greatest extent, and the installation validity of two oil extraction rails and respective fuel injector before and after guaranteeing will guarantee also that simultaneously oily rail and nozzle are installed, maintenance is convenient.
As preferably, the central point line of the front-seat mounting hole of described oily rail fitting seat is between the two row's fuel nozzle mounting hole central point lines of front and back.Consider to be installed in the front and back two oil extraction rails on the oily rail fitting seat, also want external hose on it, also need corresponding installation with the fuel nozzle mounting hole, so between two oily rails distance must be arranged, therefore the oily rail mounting hole central point line with the front row is arranged between two fuel nozzle mounting hole central point lines, after utilizing " L " shape oil rail fitting seat that oily rail is installed, distance before and after having drawn back between the two oil extraction rails, preceding oil extraction rail is corresponding with front-seat fuel nozzle mounting hole, back oil extraction rail is corresponding with back row's fuel nozzle mounting hole, feasible layout is more reasonable, and is more neat, is convenient to assembling and maintenance.
As preferably, on described intake manifold body, be provided with supporting rib, described supporting rib has two, is positioned at the inboard of described oily rail fitting seat.Supporting rib is set, improves the support strength of intake manifold.
Therefore, double-fuel inlet manifold of the present invention has following advantage: 1. two kinds of fuel nozzle mounting holes are arranged on the top of air inlet air flue, and space utilization is reasonable; 2. arrange before and after two kinds of fuel nozzle mounting holes, guaranteed the fuel injection angle degree, help fuel atomizing, improve fuel economy, also make things convenient for the layout of oily rail simultaneously; 3. on the oily rail fitting seat former and later two mounting holes are set, separately fix two oily rails, guarantee the installation validity of two groups of fuel nozzles, the installation and the maintenance of two groups of oil rails can be independent of each other; 4. two groups of fuel nozzle mounting holes are corresponding with two groups of oil rail mounting holes, connection and reasonable arrangement, and neat appearance, it is convenient to install, overhaul.
Description of drawings:
Fig. 1 is the plan view of double-fuel inlet manifold of the present invention.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the D-D sectional view of Fig. 2.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, technological scheme of the present invention is described in further detail.
Embodiment:
Shown in Fig. 1 and 2 and 3, a kind of double-fuel inlet manifold, intake manifold is that cast inblock forms, comprising intake manifold body 1, be provided with resonant cavity 2 in body 1 upper end, resonant cavity 2 is connected with air inlet air flue 3, air inlet air flue 3 is 4, and air inlet air flue 3 is claw type and distributes.Be provided with on body 1 and connect with intake manifold connecting base 5, intake manifold connecting base 5 be the flange plate form, is used for being connected and fixing of intake manifold and motor.Directly over each air inlet air flue 3, be provided with a fuel nozzle fitting seat 6 with body 1 integrally casting.Each fuel nozzle fitting seat 6 comprises the axes intersect that front-seat fuel injection mounting hole 7 and back row's fuel sprays 10, two mounting holes of mounting hole, and two mounting hole crossing point of axes overlap with a center, hole of intake manifold connecting base.Two mounting holes are cylindric, the stepped tandem top that is arranged in air inlet air flue 3 straggly.Front-seat fuel nozzle mounting hole 7 is installed the methyl alcohol nozzle, is used to spray main automotive fuel methyl alcohol, and back row's fuel nozzle mounting hole 10 is installed petrol jet, is used to spray vehicle starting and standby auxiliary fuel gasoline.Front-seat fuel nozzle mounting hole 7 is 45 ° with the included angle A of intake manifold connecting base 5 flange plate end faces, and back row's fuel nozzle mounting hole 10 is 67 ° with the included angle B of intake manifold connecting base 5 flange plate end faces.On the body 1 of intake manifold, be provided with two oily rail fitting seats 8, the outside of two air inlet air flues 3 in the middle of two oily rail fitting seats 8 lay respectively at, the upper-end surface of oil rail fitting seat 8 is a plane, the length of fitting seat 8 is 35mm, oil extraction rail mounting hole 9 and back oil extraction rail mounting hole 12 before parallel in the plane being provided with, distance between the two oil extraction rail mounting holes is 12mm, the central point line of preceding oil extraction rail mounting hole 9 is between front-seat fuel nozzle mounting hole 7 central point lines and back row's fuel mounting hole 10 central point lines, be used for fixing methyl alcohol oil rail, the installation of convenient oily rail and fuel nozzle and cooperating; Back oil extraction rail mounting hole 12 is used to install gasoline oil rail.On the body 1 of intake manifold, be provided with the outside that 11, two supporting ribs 11 of two supporting ribs lay respectively at middle two air inlet air flues 3, the inboard of two oily rail fitting seats 8, the intensity of raising intake manifold.
Claims (8)
1. double-fuel inlet manifold, comprise the intake manifold body, on the intake manifold body, be provided with to connect and use the intake manifold connecting base, in the intake manifold body, be provided with the air inlet air flue, be provided with and integrated fuel nozzle fitting seat of intake manifold body and oily rail fitting seat near intake manifold connecting base one side, it is characterized in that: described fuel nozzle fitting seat is arranged on the top of air inlet air flue, and described fuel nozzle fitting seat comprises two groups of nozzle mounting holes, described oily rail fitting seat is arranged on the top of air inlet air flue, and described oily rail fitting seat is provided with two groups of oil rail mounting holes.
2. double-fuel inlet manifold according to claim 1, it is characterized in that: the quantity of the quantity air inlet air flue of described fuel nozzle fitting seat is identical, the fuel nozzle fitting seat be arranged in the air inlet air flue directly over, two nozzle mounting holes arranging before and after each fuel nozzle fitting seat is provided with, two nozzle mounting holes are cylindric and former and later two nozzle mounting holes are ladder-like arranged, the axes intersect of described two nozzle mounting holes, and two nozzle mounting hole crossing point of axes overlap with the seat center, hole of intake manifold connecting base.
3. double-fuel inlet manifold according to claim 2, it is characterized in that: described intake manifold connecting base is used flange plate for connecting, angle between the axis of described front-seat fuel nozzle mounting hole and the end face of flange plate is 42 °-48 °, and the angle between described back row's the fuel nozzle mounting hole and the end face of flange plate is 65 °-70 °.
4. double-fuel inlet manifold according to claim 2, it is characterized in that: what connect in the described front-seat fuel nozzle mounting hole is the methanol fuel nozzle of the main driving fuel of conduct, and connection is as starting and standby Fuel Petroleum nozzle in the row's fuel nozzle mounting hole of back.
5. according to any described double-fuel inlet manifold of claim 1 to 4, it is characterized in that: described oily rail fitting seat branch is listed in the both sides of body, between both sides air inlet air flue, two oily rail mounting holes arranging before and after each oily rail fitting seat is provided with, two oily rail mounting hole site are on same mounting plane, and the axis of two oily rail mounting holes is parallel to each other.
6. double-fuel inlet manifold according to claim 5 is characterized in that: the length of described oily rail fitting seat is 30mm-40mm.
7. double-fuel inlet manifold according to claim 5 is characterized in that: the central point line of the preceding oil extraction rail mounting hole of described oily rail fitting seat is between the two row's fuel nozzle mounting hole central point lines of front and back.
8. according to any described double-fuel inlet manifold of claim 1 to 4, it is characterized in that: be provided with supporting rib on described intake manifold body, described supporting rib has two, is positioned at the inboard of described oily rail fitting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203032038U CN201363211Y (en) | 2008-12-08 | 2008-12-08 | Dual fuel air intake manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203032038U CN201363211Y (en) | 2008-12-08 | 2008-12-08 | Dual fuel air intake manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363211Y true CN201363211Y (en) | 2009-12-16 |
Family
ID=41473874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203032038U Expired - Lifetime CN201363211Y (en) | 2008-12-08 | 2008-12-08 | Dual fuel air intake manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363211Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985906A (en) * | 2010-10-29 | 2011-03-16 | 华晨汽车集团控股有限公司 | Fuel injection mechanism for natural gas single-fuel engine |
| CN101493059B (en) * | 2008-12-08 | 2012-05-16 | 上海华普汽车有限公司 | Double-fuel inlet manifold |
| CN102734029A (en) * | 2012-07-06 | 2012-10-17 | 李恒 | Fixing device of dual-fuel nozzle |
-
2008
- 2008-12-08 CN CNU2008203032038U patent/CN201363211Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101493059B (en) * | 2008-12-08 | 2012-05-16 | 上海华普汽车有限公司 | Double-fuel inlet manifold |
| CN101985906A (en) * | 2010-10-29 | 2011-03-16 | 华晨汽车集团控股有限公司 | Fuel injection mechanism for natural gas single-fuel engine |
| CN101985906B (en) * | 2010-10-29 | 2012-07-04 | 华晨汽车集团控股有限公司 | Fuel injection mechanism for natural gas single-fuel engine |
| CN102734029A (en) * | 2012-07-06 | 2012-10-17 | 李恒 | Fixing device of dual-fuel nozzle |
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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: 20091216 Effective date of abandoning: 20081208 |