CN204572292U - The single hole jet pipe that duel fuel engine intake duct 45 degree sprays - Google Patents
The single hole jet pipe that duel fuel engine intake duct 45 degree sprays Download PDFInfo
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- CN204572292U CN204572292U CN201520284613.2U CN201520284613U CN204572292U CN 204572292 U CN204572292 U CN 204572292U CN 201520284613 U CN201520284613 U CN 201520284613U CN 204572292 U CN204572292 U CN 204572292U
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Abstract
The utility model discloses the single hole jet pipe that duel fuel engine intake duct 45 degree sprays, be intended to overcome and can produce the high problem of total hydrocarbon emission when small engine load runs and mixes uneven with air, the single hole jet pipe that duel fuel engine intake duct 45 degree sprays and L-type rock gas jet pipe (1) are made up of left end vertical tube and right-hand member horizontal pipe; Left end vertical tube is connected glossily with right-hand member horizontal pipe, and left end vertical tube is identical with the inside and outside footpath of right-hand member horizontal pipe, and the rotational axis of left end vertical tube and right-hand member horizontal pipe intersects vertically; Right-hand member horizontal pipe is welded by right-hand member horizontal and the board-like oblique retaining wall of nozzle exit (5) of circular flat; The diameter of the oblique retaining wall of nozzle exit (5) is equal with the external diameter of right-hand member horizontal; Upper half part of the oblique retaining wall of nozzle exit (5) processes one becomes miter angle tapered plane with the rotational axis of right-hand member horizontal, and tapered plane center processes a nozzle exit (3) communicated with the endoporus of right-hand member horizontal.
Description
Technical field
The utility model relates to a kind of jet pipe belonging to duel fuel engine gas jet technique field, and or rather, the utility model relates to the single hole jet pipe that a kind of duel fuel engine intake duct 45 degree sprays.
Background technique
Along with Global Oil energy consumption, rock gas is more and more subject to the favor of Ge great automobile vendor.And large diesel engine can reduce the discharge of soot greatly after being adapted as Natural Gas & Diesel Dual Fuel Engine motor, so both can alleviate diesel consumption problem, diesel particulate emission high problem can also be reduced.At present, Natural Gas & Diesel Dual Fuel Engine motor generally adopts intake duct multi-point injection mode to carry out air inlet, and current rock gas jet pipe used is all spray along air flue axial direction, result of study shows, Natural Gas & Diesel Dual Fuel Engine motor is that diesel pilot multiple spot catches fire, and current this jet pipe can produce the high problem of total hydrocarbon emission when small engine load runs and mixes uneven with air.
Summary of the invention
Technical problem to be solved in the utility model overcomes can produce the high problem of total hydrocarbon emission when small engine load runs and mixes uneven with air, provides the single hole jet pipe that a kind of duel fuel engine intake duct 45 degree sprays.
For solving the problems of the technologies described above, the utility model adopts following technological scheme to realize: the single hole jet pipe that described duel fuel engine intake duct 45 degree sprays and L-type rock gas jet pipe are made up of left end vertical tube, bent intermediate pipe and right-hand member horizontal pipe.
Left end vertical tube, bent intermediate pipe are connected successively with right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the external diameter of right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the internal diameter of right-hand member horizontal pipe, and the rotational axis of left end vertical tube and right-hand member horizontal pipe intersects vertically.
Left end vertical tube described in technological scheme, bent intermediate pipe and right-hand member horizontal pipe adopt one to manage or split typely to make, then welding manner is adopted three to be connected successively, adopt one manage or adopt split type L-type rock gas jet pipe of making all will ensure that the left end vertical tube at bent intermediate pipe and two ends and right-hand member horizontal pipe are smoothly connected, ensure left end vertical tube and the orthogonal position relationship of right-hand member horizontal pipe.
The top of left end vertical tube described in technological scheme is nozzle entry, and screw thread installed by jet pipe nozzle entry outer tube wall is processed with for installing L-type rock gas jet pipe; The aperture of nozzle entry is 6mm ~ 7mm, and wall thickness is 1mm ~ 1.5mm, and the length that screw thread installed by jet pipe is 5mm ~ 6mm, and the length of left end vertical tube is 30mm ~ 40mm.
Bent intermediate pipe described in technological scheme is curved circular duct ligation component, and the radius of curvature of bent intermediate pipe is 20mm ~ 30mm.
Right-hand member horizontal pipe described in technological scheme is made up of right-hand member horizontal and the oblique retaining wall of nozzle exit; The oblique retaining wall of described nozzle exit is circular flat plate structure part, and nozzle exit oblique retaining wall diameter dimension is equal with the outside dimension of right-hand member horizontal; The right-hand member of right-hand member horizontal adopts welding manner to be fixedly connected with the oblique retaining wall of nozzle exit, the axis of symmetry conllinear of the rotational axis of right-hand member horizontal and the oblique retaining wall of nozzle exit; Upper half part of oblique for nozzle exit retaining wall is processed into the tapered plane becoming 45 degree with the rotational axis of right-hand member horizontal.
The monolithic construction part that the oblique retaining wall of nozzle exit described in technological scheme adopts and right-hand member horizontal is connected, namely adopts during the endoporus of processing right-hand member horizontal and does not bore the slab leaving 2mm ~ 3mm.
The tapered plane center of the oblique retaining wall of the nozzle exit described in technological scheme processes a nozzle exit communicated with right-hand member horizontal endoporus, and the rotational axis of nozzle exit and the rotational axis of right-hand member horizontal intersect miter angle.
The discharge area of the nozzle exit described in technological scheme and the area equation of nozzle entry.
The length of the right-hand member horizontal pipe described in technological scheme is 50mm ~ 60mm.
Compared with prior art the beneficial effects of the utility model are:
1. the single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays can make duel fuel engine natural gas injection direction along becoming 45 degree and upwards spray to enter cylinder with air flue axial direction.
2. duel fuel engine intake duct described in the utility model 45 degree spray single hole jet pipe can realize than be equipped with existing jet pipe motor evenly cylinder in mixed gas.
3. the single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays can provide technical support for probing into mixed gas distribution in the different cylinder of duel fuel engine to the impact of engine performance.
4. the single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays does not increase any part compared with existing jet pipe, improves the performance of jet pipe by means of only structural design changes injection direction.
4. the single hole nozzle structure of duel fuel engine intake duct described in the utility model 45 degree injection is simple, easy to process, only need process jet pipe, and almost do not change overall engine structure, cost is low.
5. the single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays only has a tubule, decreases taking air inlet position, smaller on the impact of air inlet efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described:
Fig. 1 is the whole-cutaway view on the plan view of the single hole nozzle structure composition that duel fuel engine intake duct described in the utility model 45 degree sprays;
Fig. 2 is the axonometric projection graph of the single hole nozzle structure composition that duel fuel engine intake duct described in the utility model 45 degree sprays;
Fig. 3 is the plan view of the single hole nozzle structure composition that duel fuel engine intake duct described in the utility model 45 degree sprays.
In figure: 1.L type rock gas jet pipe, 2. nozzle entry, 3. nozzle exit, 4. jet pipe installs screw thread, the 5. oblique retaining wall of nozzle exit.
Embodiment
Below in conjunction with accompanying drawing, the utility model is explained in detail:
As Fig. 1 to Fig. 3, the single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays and L-type rock gas jet pipe 1 are made up of left end vertical tube, bent intermediate pipe and right-hand member horizontal pipe.
Left end vertical tube, bent intermediate pipe are connected sleekly with right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the external diameter of right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the internal diameter of right-hand member horizontal pipe, and the rotational axis of left end vertical tube and right-hand member horizontal pipe intersects vertically; L-type rock gas jet pipe 1 can adopt a general pipe being convenient to process to make, or adopts segmented to be welded.
The top of described left end vertical tube is nozzle entry 2, and screw thread 4 installed by jet pipe nozzle entry 2 outer tube wall is processed with for installing L-type rock gas jet pipe 1; In embodiment, the aperture of nozzle entry 2 is 6mm ~ 7mm, wall thickness is 1mm ~ 1.5mm, the length that screw thread 4 installed by jet pipe is 5mm ~ 6mm, four hole jet pipes that screw thread 4 is used for duel fuel engine intake duct Vertical dimension to spray installed outward by jet pipe and L-type rock gas jet pipe 1 is fixedly mounted on the upper wall of air inlet resonant cavity, and the vertical length of left end vertical tube is 30mm ~ 40mm.
Described bent intermediate pipe is curved circular duct ligation component, generally considers that together with right-hand member horizontal pipe three is made integral piece by employing pipe with left end vertical tube, certainly, also can adopt split part, then adopts welding manner three to be connected successively; No matter adopt which kind of mode, left end vertical tube and the right-hand member horizontal pipe at bent intermediate pipe and two ends are smoothly connected, and ensure left end vertical tube and the orthogonal position relationship of right-hand member horizontal pipe, the radius of curvature of bent intermediate pipe is 20mm ~ 30mm.
Consult Fig. 1 and Fig. 2, described right-hand member horizontal pipe is made up of right-hand member horizontal and the oblique retaining wall 5 of nozzle exit.
The oblique retaining wall 5 of described nozzle exit is circular flat plate structure part, and nozzle exit oblique retaining wall 5 diameter dimension is equal with the outside dimension of right-hand member horizontal, and the thickness of the oblique retaining wall 5 of nozzle exit is 2mm ~ 3mm.
The monolithic construction that the oblique retaining wall 5 of nozzle exit adopts and right-hand member horizontal is connected, or adopt welding manner to be fixedly connected with oblique for the nozzle exit of split retaining wall 5 and right-hand member horizontal, and upper half part of oblique for nozzle exit retaining wall 5 is processed into the tapered plane becoming 45 degree with the rotational axis of right-hand member horizontal, tapered plane peripheral shape is a shape becoming the plane of 45 degree and the section line of right-hand member horizontal cylndrical surface with the rotational axis of right-hand member horizontal, namely be the elliptic curve of half, a through hole is processed in the center of tapered plane, an i.e. nozzle exit 3 communicated with right-hand member horizontal endoporus, the rotational axis of nozzle exit 3 and the rotational axis of right-hand member horizontal intersect 45 degree.
The oblique retaining wall of nozzle exit 5 or by processing right-hand member horizontal time do not bore reserve form the oblique retaining wall of described nozzle exit, its thickness is made to be 2 ~ 3mm, and upper half part of oblique for nozzle exit retaining wall 5 is processed into the tapered plane becoming 45 degree with the rotational axis of right-hand member horizontal, a through hole is processed again in the center of tapered plane, an i.e. nozzle exit 3 communicated with right-hand member horizontal endoporus, nozzle exit oblique retaining wall 5 Main Function becomes 45 degree of guiding walls sprayed as rock gas; The size of nozzle exit 3 and the entrance of L-type rock gas jet pipe 1, namely with nozzle entry 2 area equation, keep area equation can affect the boundary conditionss such as creation for the single hole jet pipes probing into the oblique 45 degree injections of intake duct single-point to duel fuel engine performance.
The length of the right-hand member horizontal pipe in L-type rock gas jet pipe 1 is 50mm ~ 60mm, L-type rock gas jet pipe 1 left end vertical tube is fixed in air inlet resonant cavity, right-hand member horizontal pipe is directly deep in intake duct, the length of the right-hand member horizontal pipe in L-type rock gas jet pipe 1 is too short, easily make the rock gas of ejection channel in air inlet resonant cavity, the length of right-hand member horizontal pipe long easily and valve motion formed and interfere.
The attainable working procedure of the utility model:
The single hole jet pipe that duel fuel engine intake duct described in the utility model 45 degree sprays is arranged on the upper wall of the air inlet resonant cavity of motor, and the right-hand member horizontal pipe of L-type rock gas jet pipe 1 is deep in intake duct, then starts working.Nozzle exit 3 due to the single hole jet pipe of the injection of oblique 45 degree of described engine fuel intake duct multi-point injection becomes 45 degree with air flue axis and upward, so rock gas slightly can hit wall after entering air flue, can increase and air mixture time when natural gas flow energy loss is very little.
Rock gas realizes becoming 45 degree of single holes upwards course of injection with air flue axis:
L-type rock gas jet pipe 1 is fixed on the upper wall of air inlet resonant cavity, the right-hand member horizontal pipe of L-type rock gas jet pipe 1 is flatly deep in intake duct, keep the sealing of L-type rock gas jet pipe 1 and air inlet resonant cavity.
During work, rock gas from solenoid valve through nozzle entry 2, then through L-type rock gas jet pipe 1, arrive nozzle exit retaining wall 5, sprayed by nozzle exit 3,45 degree tiltedly hit intake duct, are then mixed in cylinder with air, namely achieving rock gas becomes 45 degree of single holes to spray with air flue axis, obtain rock gas mixed gas in a kind of cylinder.
Claims (9)
1. a duel fuel engine intake duct 45 degree of single hole jet pipes sprayed, it is characterized in that, the single hole jet pipe that described duel fuel engine intake duct 45 degree sprays and L-type rock gas jet pipe (1) are made up of left end vertical tube, bent intermediate pipe and right-hand member horizontal pipe;
Left end vertical tube, bent intermediate pipe are connected successively with right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the external diameter of right-hand member horizontal pipe, left end vertical tube, bent intermediate pipe are identical with the internal diameter of right-hand member horizontal pipe, and the rotational axis of left end vertical tube and right-hand member horizontal pipe intersects vertically.
2. according to the single hole jet pipe that duel fuel engine intake duct according to claim 1 45 degree sprays, it is characterized in that, described left end vertical tube, bent intermediate pipe and right-hand member horizontal pipe adopt one to manage or split typely to make, then welding manner is adopted three to be connected successively, adopt one manage or adopt split type L-type rock gas jet pipe (1) of making all will ensure that the left end vertical tube at bent intermediate pipe and two ends and right-hand member horizontal pipe are smoothly connected, ensure left end vertical tube and the orthogonal position relationship of right-hand member horizontal pipe.
3. according to the single hole jet pipe that duel fuel engine intake duct according to claim 1 45 degree sprays, it is characterized in that, the top of described left end vertical tube is nozzle entry (2), and screw thread (4) installed by jet pipe nozzle entry (2) outer tube wall is processed with for installing L-type rock gas jet pipe (1); The aperture of nozzle entry (2) is 6 ~ 7mm, and wall thickness is 1mm ~ 1.5mm, and the length that screw thread (4) installed by jet pipe is 5mm ~ 6mm, and the length of left end vertical tube is 30mm ~ 40mm.
4., according to the single hole jet pipe that duel fuel engine intake duct according to claim 1 45 degree sprays, it is characterized in that, described bent intermediate pipe is curved circular duct ligation component, and the radius of curvature of bent intermediate pipe is 20mm ~ 30mm.
5., according to the single hole jet pipe that duel fuel engine intake duct according to claim 1 45 degree sprays, it is characterized in that, described right-hand member horizontal pipe is made up of right-hand member horizontal and the oblique retaining wall of nozzle exit (5);
The oblique retaining wall of described nozzle exit (5) is circular flat plate structure part, and the oblique retaining wall of nozzle exit (5) diameter dimension is equal with the outside dimension of right-hand member horizontal;
The right-hand member of right-hand member horizontal adopts welding manner to be fixedly connected with the oblique retaining wall of nozzle exit (5), the axis of symmetry conllinear of the rotational axis of right-hand member horizontal and the oblique retaining wall of nozzle exit (5);
Upper half part of oblique for nozzle exit retaining wall (5) is processed into the tapered plane becoming 45 degree with the rotational axis of right-hand member horizontal.
6. according to the single hole jet pipe that duel fuel engine intake duct according to claim 5 45 degree sprays, it is characterized in that, the monolithic construction part that the oblique retaining wall of described nozzle exit (5) adopts and right-hand member horizontal is connected, namely adopts during the endoporus of processing right-hand member horizontal and does not bore the slab leaving 2mm ~ 3mm.
7. according to the single hole jet pipe that duel fuel engine intake duct according to claim 5 45 degree sprays, it is characterized in that, the tapered plane center of the oblique retaining wall of described nozzle exit (5) processes a nozzle exit (3) communicated with right-hand member horizontal endoporus, and the rotational axis of nozzle exit (3) and the rotational axis of right-hand member horizontal intersect miter angle.
8., according to the single hole jet pipe that duel fuel engine intake duct according to claim 5 45 degree sprays, it is characterized in that, the discharge area of described nozzle exit (3) and the area equation of nozzle entry (2).
9., according to the single hole jet pipe that duel fuel engine intake duct according to claim 1 45 degree sprays, it is characterized in that, the length of described right-hand member horizontal pipe is 50mm ~ 60mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284613.2U CN204572292U (en) | 2015-05-05 | 2015-05-05 | The single hole jet pipe that duel fuel engine intake duct 45 degree sprays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520284613.2U CN204572292U (en) | 2015-05-05 | 2015-05-05 | The single hole jet pipe that duel fuel engine intake duct 45 degree sprays |
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| Publication Number | Publication Date |
|---|---|
| CN204572292U true CN204572292U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520284613.2U Expired - Fee Related CN204572292U (en) | 2015-05-05 | 2015-05-05 | The single hole jet pipe that duel fuel engine intake duct 45 degree sprays |
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| Country | Link |
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| CN (1) | CN204572292U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791157A (en) * | 2015-05-05 | 2015-07-22 | 吉林大学 | 45-degree spraying single-hole spray tube of dual-fuel engine intake duct |
-
2015
- 2015-05-05 CN CN201520284613.2U patent/CN204572292U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104791157A (en) * | 2015-05-05 | 2015-07-22 | 吉林大学 | 45-degree spraying single-hole spray tube of dual-fuel engine intake duct |
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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: 20150819 Termination date: 20170505 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |