CN205638733U - EGR cooler for diesel - Google Patents
EGR cooler for diesel Download PDFInfo
- Publication number
- CN205638733U CN205638733U CN201620366877.7U CN201620366877U CN205638733U CN 205638733 U CN205638733 U CN 205638733U CN 201620366877 U CN201620366877 U CN 201620366877U CN 205638733 U CN205638733 U CN 205638733U
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- China
- Prior art keywords
- tube bank
- waste gas
- dividing plate
- chamber
- baffle
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- Withdrawn - After Issue
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Abstract
The utility model relates to a EGR cooler for diesel is equipped with first baffle, second baffle, third baffle and fourth baffle from the left hand right side in the cooling casing inner chamber in proper order, the chamber is steam again for waste gas import chamber, the space between first baffle and the second baffle for waste gas in the left space of first baffle, and the space between second baffle and the third baffle is the heat exchange chamber, and the chamber is turned round for waste gas in the space between third baffle and the fourth baffle, and the space on fourth baffle right side is the exhaust outlet chamber, cooling casing left end is provided with the waste gas inlet with waste gas import chamber intercommunication, and waste gas import chamber is through first tube bank and waste gas gyration chamber intercommunication, and waste gas gyration chamber is passed through second tube bank and waste gas and is steam again the chamber intercommunication, and waste gas steams again the chamber to be passed through the third tube bank and communicate with the exhaust outlet chamber, cooling casing right -hand member is provided with the waste gas gas outlet with exhaust outlet chamber intercommunication, is equipped with coolant liquid import and cooling liquid exit with heat exchange chamber intercommunication on the cooling casing. The utility model discloses heat conduction radiation nature is strong, the radiating efficiency is high.
Description
Technical field
This utility model relates to the diesel engine part of a kind of improvement, specifically a kind of EGR cooler for diesel, belongs to frame for movement technical field.
Background technology
In order to solve the emission problem of diesel engine nitrogen oxides (NOx), waste gas recirculation (EGR) is effect more significantly one of technology.But the exhaust gas recirculation of high heat will heat air inlet, causing the in-cylinder combustion temperature and pressure to raise, partial offset EGR reduces the effect of NOx, also will produce the structure of electromotor and destroy time serious, therefore, it is necessary to the EGR gas of high temperature is cooled down by cooler.The most conventional cooler volume is bigger, it is connected on engine body by metal tubes, connector is easily broken off, do not adapt to the feature that engine luggine is big, exhaust pipe is high temperature resistant, corrosion-resistant and sealing is poor simultaneously, the pressure loss is big, and additionally the path length of coolant, inhomogeneous cooling are even, and cooling effect is not good enough.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of EGR cooler for diesel, its simple in construction, compact, reasonable, high temperature resistant, corrosion-resistant, has the strongest heat conduction and heat radiation, radiating efficiency high.
The technical scheme provided according to this utility model: EGR cooler for diesel, it is characterised in that: include cooling down housing, the first dividing plate, second partition, the 3rd dividing plate, the 4th dividing plate, the first tube bank, the second tube bank and the 3rd tube bank；The inner chamber of described cooling housing is sequentially provided with the first dividing plate, second partition, the 3rd dividing plate and the 4th dividing plate from left to right that be parallel to each other；Space on the left of described first dividing plate is exhaust gas inlet chamber, space between described first dividing plate and second partition is that waste gas steams again chamber, space between described second partition and the 3rd dividing plate is heat exchange chamber, space between described 3rd dividing plate and the 4th dividing plate is waste gas turned cavities, and the space on the right side of described 4th dividing plate is waste gas outlet chamber；Described cooling housing left end is provided with waste gas inlet, and this waste gas inlet connects with exhaust gas inlet chamber；Some first tube banks, some second tube banks and some 3rd tube banks are all arranged in cooling housing according to left and right trend；First tube bank runs through the first dividing plate, second partition and the 3rd dividing plate, and the first tube bank left end connects with exhaust gas inlet chamber, and the first tube bank right-hand member connects with waste gas turned cavities；Second tube bank runs through second partition and the 3rd dividing plate, and the second tube bank left end steams again chamber with waste gas and connects, and the second tube bank right-hand member connects with waste gas turned cavities；3rd tube bank runs through second partition, the 3rd dividing plate and the 4th dividing plate, and the 3rd tube bank left end steams again chamber with waste gas and connects, and the 3rd tube bank right-hand member connects with waste gas outlet chamber；Described cooling housing right-hand member is provided with waste gas gas outlet, and this waste gas inlet connects with waste gas outlet chamber；Described cooling housing is provided with cooling liquid inlet and cooling liquid outlet, and described cooling liquid inlet connects with heat exchange chamber with cooling liquid outlet.
As further improvement of the utility model, described first tube bank, the second tube bank are identical with the internal diameter size of the 3rd tube bank, and the quantity of the first tube bank is less than the quantity of the 3rd tube bank, and the quantity of the 3rd tube bank is less than the quantity of the second tube bank.
As further improvement of the utility model, described cooling housing is flat pattern, described first tube bank has four, second tube bank has five, 3rd tube bank has 12, the first whole tube banks, second tube bank and the 3rd tube bank press three rows front and back in cooling housing body, the mode of upper and lower seven layers is arranged, front-seat the 4th layer, 3rd layer 5 of intermediate row and the 4th layer of heel row are the first tube bank, it is the second tube bank by first second layer of cooling case top and the 6th layer 7 by cooling housing bottom, the 3rd front-seat layer 5, the 4th layer of intermediate row is the 3rd tube bank with the 3rd layer 5 of heel row.
As further improvement of the utility model, the internal diameter size of described first tube bank, the second tube bank and the 3rd tube bank is φ 7mm.
As further improvement of the utility model, described cooling liquid inlet is arranged on cooling housing front or bottom, and described cooling liquid outlet is arranged on cooling back side of shell or top.
As further improvement of the utility model, the internal diameter size of described cooling liquid inlet is more than the internal diameter size of cooling liquid outlet.
As further improvement of the utility model, the internal diameter size of described cooling liquid inlet is φ 16mm, and the internal diameter size of described cooling liquid outlet is φ 14mm.
As further improvement of the utility model, described cooling housing, the first dividing plate, second partition, the 3rd dividing plate, the 4th dividing plate, the first tube bank, the second tube bank and the 3rd tube bank all use 304 stainless steel materials to make.
Compared with the prior art this utility model, has the advantage that
1), this utility model entirety use the most excellent 304 rustless steels of heat conductivility to make, there is advantage high temperature resistant, corrosion-resistant, that heat conduction and heat radiation is strong, radiating efficiency is high.
2), this utility model simple in construction, compact, reasonable, volume is little, size of main body and diesel engine cylinder cover back shroud consistent size, adapts to multiple kind (such as tractor, harvester, light card, pick up, engineering machinery, generating unit etc.) use.
3), the cooling liquid inlet in this utility model and cooling liquid outlet design attitude are reasonable, the path that can make coolant is brief, make that coolant is more uniform quickly to be flow through from the inner chamber of whole cooler for recycled exhaust gas, it is to avoid because of the generation of coolant flow is slow, flow causes less high-temp waste gas arrival end tube bank hot-spot problem.
4), this utility model can directly be loaded at diesel engine cylinder cover back shroud, water inlet without being connected by rubber tube so that it be one seal duty, the pressure loss is little.
5), this utility model can function as cylinder cap back shroud use, the manufacturing cost of minimizing internal combustion engine.
6), this utility model can directly be loaded on diesel engine cylinder cover back shroud, no longer as being affiliated on a diesel engine before, the drawback that conventional connector is easily broken off can be solved, adapt to the feature that engine luggine is big.
Accompanying drawing explanation
Fig. 1 is the structural front view of this utility model embodiment.
Fig. 2 is the rearview of Fig. 1.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the structure sectional view of this utility model embodiment.
Fig. 5 is that the A-A in Fig. 1 is to sectional view.
Fig. 6 is the perspective view after this utility model embodiment excision cooling housing leading flank.
Detailed description of the invention
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As it can be seen, the EGR cooler for diesel in embodiment is mainly restrained the 11, second tube bank 12 by cooling housing the 1, first dividing plate 2, second partition the 3, the 3rd dividing plate the 4, the 4th dividing plate 5, first and the 3rd tube bank 13 forms.
As shown in Fig. 1 ~ Fig. 6, the inner chamber of described cooling housing 1 is sequentially provided with the first dividing plate 2, second partition the 3, the 3rd dividing plate 4 and the 4th dividing plate 5 from left to right that be parallel to each other；Space on the left of described first dividing plate 2 is exhaust gas inlet chamber 6, space between described first dividing plate 2 and second partition 3 is that waste gas steams again chamber 7, space between described second partition 3 and the 3rd dividing plate 4 is heat exchange chamber 8, space between described 3rd dividing plate 4 and the 4th dividing plate 5 is waste gas turned cavities 9, and the space on the right side of described 4th dividing plate 5 is waste gas outlet chamber 10；Described cooling housing 1 left end is provided with waste gas inlet 1a, and this waste gas inlet 1a connects with exhaust gas inlet chamber 6；Some first tube banks 11, some second tube banks 12 and some 3rd tube banks 13 are all arranged in cooling housing 1 according to left and right trend；First tube bank 11 runs through the first dividing plate 2, second partition 3 and the 3rd dividing plate 4, and the first tube bank 11 left ends connect with exhaust gas inlet chamber 6, and the first tube bank 11 right-hand members connect with waste gas turned cavities 9；Second tube bank 12 runs through second partition 3 and the 3rd dividing plate 4, and the second tube bank 12 left ends steam again chamber 7 with waste gas and connect, and the second tube bank 12 right-hand members connect with waste gas turned cavities 9；3rd tube bank 13 runs through second partition the 3, the 3rd dividing plate 4 and the 4th dividing plate 5, and the 3rd tube bank 13 left ends steam again chamber 7 with waste gas and connect, and the 3rd tube bank 13 right-hand members connect with waste gas outlet chamber 10；Described cooling housing 1 right-hand member is provided with waste gas gas outlet 1b, this waste gas inlet 1a and connects with waste gas outlet chamber 10；Described cooling housing 1 is provided with cooling liquid inlet 1c and cooling liquid outlet 1d, described cooling liquid inlet 1c and connects with heat exchange chamber 8 with cooling liquid outlet 1d.
As shown in Fig. 4 ~ Fig. 6, in this utility model embodiment, described cooling housing 1 is flat pattern, described first tube bank 11 has four, second tube bank 12 has five, 3rd tube bank 13 has 12, the first whole tube banks 11, second tube bank 12 and the 3rd tube bank 13 press three rows front and back in cooling housing 1 body, the mode of upper and lower seven layers is arranged, front-seat the 4th layer, 3rd layer 5 of intermediate row and the 4th layer of heel row are the first tube bank 11, by cooling down first second layer at housing 1 top and being the second tube bank 12 by the 6th layer 7 bottom cooling housing 1, the 3rd front-seat layer 5, the 4th layer of intermediate row is the 3rd tube bank 13 with the 3rd layer 5 of heel row.
In this utility model, the internal diameter size identical (φ 7mm) of 13 is restrained in described first tube bank the 11, second tube bank 12 with the 3rd, and the quantity of the first tube bank 11 is less than the quantity of the second tube bank 12 less than the quantity of the 3rd tube bank 13, the quantity of the 3rd tube bank 13.The purpose so arranged is: owing to first tube bank 11 in connection exhaust gas inlet chamber 6 connects the 3rd tube bank more than 13 in waste gas outlet chamber 10 less, so advantageously reduce waste gas resistance, it is to avoid carbon deposit, gum deposit generate.It addition, the second tube bank 12 that waste gas turned cavities 9 steams again chamber 7 to waste gas is the most most, being because waste gas has zig zag in the process of circulation, thus is avoided that increase additional drag, more abundant also for cooling.
As it is shown in figure 1, in this utility model embodiment, described cooling liquid inlet 1c is arranged on cooling housing 1 front, described cooling liquid outlet 1d is arranged on cooling housing 1 top.But in actual applications, cooling liquid inlet 1c can also be arranged on bottom cooling housing 1, and cooling liquid outlet 1d can be arranged on cooling housing 1 back side.
In this utility model, the internal diameter size (φ 16mm) of described cooling liquid inlet 1c preferably should be greater than the internal diameter size (φ 14mm) of cooling liquid outlet 1d, and such footpath difference is conducive to improving hydraulic pressure, it is to avoid produce bubble.
In this utility model, the 11, second tube bank 12 restrained by described cooling housing the 1, first dividing plate 2, second partition the 3, the 3rd dividing plate the 4, the 4th dividing plate 5, first and the 3rd tube bank 13 all preferably employs 304 stainless steel materials and makes, thus has advantage high temperature resistant, corrosion-resistant, that heat conduction and heat radiation is strong, radiating efficiency is high.
Operation principle of the present utility model and work process are as follows:
The hot waste gas of diesel combustion introduces a part and enters exhaust gas inlet chamber 6 through waste gas inlet 1a, first waste gas turned cavities 9 is entered through four first tube banks 11 by heat exchange chamber 8, then waste gas is restrained 12 by the most each six roots of sensation second and is entered waste gas withdrawal of currency from circulation chamber 7 by heat exchange chamber 8, then waste gas enters waste gas outlet chamber 10 through five the 3rd tube banks 13 by heat exchange chamber 8 again, after discharge through waste gas gas outlet 1b.Coolant is entered into heat exchange chamber 8 by cooling liquid inlet 1c, after coolant fully absorbs the heat of 20 tube banks in heat exchange chamber 8, cooling liquid outlet 1d flows out, completes heat exchange.
Waste gas after this utility model cools down enters cylinder under EGR valve control; mix with the fresh air entering cylinder, it is possible to decrease burning maximum temperature, so decreasing the generation of oxynitride in aerofluxus (NOx); thus reduce diesel exhaust gas and pollute, play the effect of protection environment.
Claims (8)
1. EGR cooler for diesel, it is characterised in that: include cooling down housing (1), the first dividing plate (2), second partition (3), the 3rd dividing plate (4), the 4th dividing plate (5), the first tube bank (11), the second tube bank (12) and the 3rd tube bank (13)；The inner chamber of described cooling housing (1) is sequentially provided with the first dividing plate (2), second partition (3), the 3rd dividing plate (4) and the 4th dividing plate (5) from left to right that be parallel to each other；The space in described first dividing plate (2) left side is exhaust gas inlet chamber (6), space between described first dividing plate (2) and second partition (3) is that waste gas steams again chamber (7), space between described second partition (3) and the 3rd dividing plate (4) is heat exchange chamber (8), space between described 3rd dividing plate (4) and the 4th dividing plate (5) is waste gas turned cavities (9), and the space on described 4th dividing plate (5) right side is waste gas outlet chamber (10)；Described cooling housing (1) left end is provided with waste gas inlet (1a), and this waste gas inlet (1a) connects with exhaust gas inlet chamber (6)；Some first tube banks (11), some second tube banks (12) and some 3rd tube banks (13) are all arranged in cooling housing (1) according to left and right trend；First tube bank (11) runs through the first dividing plate (2), second partition (3) and the 3rd dividing plate (4), and first tube bank (11) left end connects with exhaust gas inlet chamber (6), and first tube bank (11) right-hand member connects with waste gas turned cavities (9)；Second tube bank (12) runs through second partition (3) and the 3rd dividing plate (4), and second tube bank (12) left end steams again chamber (7) with waste gas and connects, and second tube bank (12) right-hand member connects with waste gas turned cavities (9)；3rd tube bank (13) runs through second partition (3), the 3rd dividing plate (4) and the 4th dividing plate (5), and the 3rd tube bank (13) left end steams again chamber (7) with waste gas and connects, and the 3rd tube bank (13) right-hand member connects with waste gas outlet chamber (10)；Described cooling housing (1) right-hand member is provided with waste gas gas outlet (1b), and this waste gas inlet (1a) connects with waste gas outlet chamber (10)；Described cooling housing (1) is provided with cooling liquid inlet (1c) and cooling liquid outlet (1d), and described cooling liquid inlet (1c) connects with heat exchange chamber (8) with cooling liquid outlet (1d).
2. EGR cooler for diesel as claimed in claim 1, it is characterized in that: described first tube bank (11), the second tube bank (12) are identical with the internal diameter size of the 3rd tube bank (13), the quantity of the first tube bank (11) is less than the quantity of the 3rd tube bank (13), and the quantity of the 3rd tube bank (13) is less than the quantity of the second tube bank (12).
3. EGR cooler for diesel as claimed in claim 2, it is characterized in that: described cooling housing (1) is flat pattern, described first tube bank (11) has four, second tube bank (12) has five, 3rd tube bank (13) has 12, the first whole tube banks (11), second tube bank (12) and the 3rd tube bank (13) are internal by three rows front and back in cooling housing (1), the mode of upper and lower seven layers is arranged, front-seat the 4th layer, 3rd layer 5 of intermediate row and the 4th layer of heel row are the first tube bank (11), it is the second tube bank (12) by first second layer at cooling housing (1) top and the 6th layer 7 by cooling housing (1) bottom, the 3rd front-seat layer 5, the 4th layer of intermediate row is the 3rd tube bank (13) with the 3rd layer 5 of heel row.
4. EGR cooler for diesel as claimed in claim 1, it is characterised in that: the internal diameter size of described first tube bank (11), the second tube bank (12) and the 3rd tube bank (13) is φ 7mm.
5. EGR cooler for diesel as claimed in claim 1, it is characterised in that: described cooling liquid inlet (1c) is arranged on cooling housing (1) front or bottom, and described cooling liquid outlet (1d) is arranged on cooling housing (1) back side or top.
6. EGR cooler for diesel as claimed in claim 1, it is characterised in that: the internal diameter size of described cooling liquid inlet (1c) is more than the internal diameter size of cooling liquid outlet (1d).
7. EGR cooler for diesel as claimed in claim 1, it is characterised in that: the internal diameter size of described cooling liquid inlet (1c) is φ 16mm, and the internal diameter size of described cooling liquid outlet (1d) is φ 14mm.
8. EGR cooler for diesel as claimed in claim 1, it is characterised in that: described cooling housing (1), the first dividing plate (2), second partition (3), the 3rd dividing plate (4), the 4th dividing plate (5), the first tube bank (11), the second tube bank (12) and the 3rd tube bank (13) all use 304 stainless steel materials to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366877.7U CN205638733U (en) | 2016-04-27 | 2016-04-27 | EGR cooler for diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366877.7U CN205638733U (en) | 2016-04-27 | 2016-04-27 | EGR cooler for diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638733U true CN205638733U (en) | 2016-10-12 |
Family
ID=57061614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620366877.7U Withdrawn - After Issue CN205638733U (en) | 2016-04-27 | 2016-04-27 | EGR cooler for diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756814A (en) * | 2016-04-27 | 2016-07-13 | 江苏四达动力机械集团有限公司 | Diesel engine egr cooler |
-
2016
- 2016-04-27 CN CN201620366877.7U patent/CN205638733U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105756814A (en) * | 2016-04-27 | 2016-07-13 | 江苏四达动力机械集团有限公司 | Diesel engine egr cooler |
| CN105756814B (en) * | 2016-04-27 | 2018-12-14 | 江苏四达动力机械集团有限公司 | EGR cooler for diesel |
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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: 20161012 Effective date of abandoning: 20181214 |
|
| AV01 | Patent right actively abandoned |