CN202926492U - EGR (Exhaust Gas Recirculation) cooler core - Google Patents
EGR (Exhaust Gas Recirculation) cooler core Download PDFInfo
- Publication number
- CN202926492U CN202926492U CN2012205946497U CN201220594649U CN202926492U CN 202926492 U CN202926492 U CN 202926492U CN 2012205946497 U CN2012205946497 U CN 2012205946497U CN 201220594649 U CN201220594649 U CN 201220594649U CN 202926492 U CN202926492 U CN 202926492U
- Authority
- CN
- China
- Prior art keywords
- threaded pipe
- fixed plate
- diameter
- exhaust gas
- plate
- 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- Withdrawn - After Issue
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Abstract
The utility model relates to the field of coolers, belongs to a component of an EGR (Exhaust Gas Recirculation) cooler which is applicable to EGR in an automobile engine system and particularly relates to an EGR cooler core. The EGR cooler core comprises an upper fixed plate and a lower fixed plate. The two ends of a threaded pipe are respectively and fixedly arranged in through holes of the upper fixed plate and the lower fixed plate. Guide plates are fixedly arranged on the threaded pipe. The end of the threaded pipe, which is fixedly arranged on the upper fixed plate, is provided with an expanding structure. The end of the threaded pipe, which is fixedly arranged on the lower fixed plate, is provided with a reducing structure. The diameter of the expanding structure of the threaded pipe is larger than the diameter of the through hole of the upper fixed plate. The diameter of the reducing structure of the threaded pipe is smaller than the diameter of the through hole of the lower fixed plate. Since one end of the threaded pipe is installed on the upper fixed plate in a pressing way through external force, the other end of the threaded pipe is reduced and the guide during assembling is facilitated, interference fit between the expanding end of the threaded pipe and the upper fixed plate as well as between the reducing end of the threaded pipe and the lower fixed plate is formed.
Description
Technical field
The utility model relates to the cooler field, belongs to a kind of constituent elements that is applicable to the cooler for recycled exhaust gas of EGR in automobile engine system, is specially the cooler for recycled exhaust gas core body.
Background technique
EGR refers to gas recirculation system, its effect is that the part of engine discharging tail gas is taken out from outlet pipe, turn back to again in the gas handling system of motor after cooling, enter the firing chamber to reduce combustion temperature together with mixed gas, thereby reduce the growing amount of NOx, finally reach the emission regulation demands of country, and cooler for recycled exhaust gas is one of critical component of gas recirculation system.
Every cooler for recycled exhaust gas needs many threaded pipes.At present, in cooler for recycled exhaust gas core body commonly used, threaded pipe is to adopt resistant to elevated temperatures nickel-based brazing structure with being connected of fixed plate, within the fit up gap need to be controlled at 0 ~ 0.075mm, hole on fixed plate is generally Punching Technology, its tolerance of size precision is 0.1mm, although this kind technique dimensional accuracy that can not guarantee that soldering is required highly efficient in productivity, long-term use can cause cooler for recycled exhaust gas soldering place to be leaked.The linkage structure commonly used of threaded pipe and fixed plate is: two fixed plates adopt same structure, some threaded pipes penetrate fixed plate, then carry out enlarging at the two ends of threaded pipe, guarantee that threaded pipe can not come off, after being convenient to the assembling of outer cylinder body and turnover water pipe, but within its matching gap is difficult to be controlled at 0 ~ 0.075mm, do not reach soldering required fit up gap.
Summary of the invention
The utility model provides a kind of cooler for recycled exhaust gas core body for the problems referred to above, and this core can realize that threaded pipe and fixed plate can not come off in assembly process; Guaranteed simultaneously the fit up gap that threaded pipe and fixed plate soldering are required.
according to the technical solution of the utility model: a kind of cooler for recycled exhaust gas core body, comprise upper mounted plate, bottom plate, the threaded pipe two ends are separately fixed in the through hole of upper mounted plate and bottom plate, guide plate is fixed on threaded pipe, it is characterized in that: described threaded pipe is fixed on upper mounted plate one end and has flaring structure, be fixed on bottom plate one end and have throat structure, the diameter of described threaded pipe flaring structure is greater than the diameter of upper mounted plate through hole, the diameter of described threaded pipe throat structure is less than the bottom plate through-hole diameter, fixed plate through-hole diameter equals the diameter of threaded pipe, the diameter of described bottom plate through hole is less than the diameter of threaded pipe.
As further improvement of the utility model, described guide plate has two, is separately positioned on cooler for recycled exhaust gas core body both sides.
Technique effect of the present utility model is: in the utility model, threaded pipe is to be pressed into by external force when packing upper mounted plate into, and the threaded pipe the other end is reducing, be convenient to the guiding in assembly process, will form like this between threaded pipe flared end and upper mounted plate and threaded pipe necking end and bottom plate is interference fit.This has just reached two purposes: namely (1) threaded pipe and fixed plate can not come off in assembly process; (2) guaranteed the fit up gap that threaded pipe and fixed plate soldering are required; The utility model is simple and reliable, and is easy to use, and fabricating cost is low, is easy to safeguard.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is threaded pipe 4 structural representations.
Fig. 3 is the utility model mounting structure schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is further described.
In Fig. 1,2,3, comprise upper mounted plate 1, bottom plate 2, guide plate 3, threaded pipe 4 etc.
as shown in Figure 1, the utility model is a kind of cooler for recycled exhaust gas core body, comprise upper mounted plate 1, bottom plate 2, threaded pipe 4 two ends are separately fixed in the through hole of upper mounted plate 1 and bottom plate 2, guide plate 3 is fixed on threaded pipe 4, described threaded pipe 4 is fixed on upper mounted plate 1 one ends and has flaring structure, be fixed on bottom plate 2 one ends and have throat structure, the diameter of described threaded pipe 4 flaring structures is greater than the diameter of upper mounted plate 1 through hole, the diameter of described threaded pipe 4 throat structures is less than bottom plate 2 through-hole diameters, fixed plate 1 through-hole diameter equals the diameter of threaded pipe 4, the diameter of described bottom plate 2 through holes is less than the diameter of threaded pipe 4.
Described guide plate 3 has two, is separately positioned on cooler for recycled exhaust gas core body both sides, plays the effect of stablizing core body.
In the utility model, threaded pipe is to be pressed into by external force when packing upper mounted plate into, and the threaded pipe the other end is reducing, be convenient to the guiding in assembly process, will form like this between threaded pipe flared end and upper mounted plate and threaded pipe necking end and bottom plate is interference fit.This has just reached two purposes: namely (1) threaded pipe and fixed plate can not come off in assembly process; (2) guaranteed the fit up gap that threaded pipe and fixed plate soldering are required; The utility model is simple and reliable, and is easy to use, and fabricating cost is low, is easy to safeguard.
Claims (2)
1. cooler for recycled exhaust gas core body, comprise upper mounted plate (1), bottom plate (2), threaded pipe (4) two ends are separately fixed in the through hole of upper mounted plate (1) and bottom plate (2), guide plate (3) is fixed on threaded pipe (4), it is characterized in that: described threaded pipe (4) is fixed on upper mounted plate (1) one end and has flaring structure, be fixed on bottom plate (2) one ends and have throat structure, the diameter of described threaded pipe (4) flaring structure is greater than the diameter of upper mounted plate (1) through hole, the diameter of described threaded pipe (4) throat structure is less than bottom plate (2) through-hole diameter, fixed plate (1) through-hole diameter equals the diameter of threaded pipe (4), the diameter of described bottom plate (2) through hole is less than the diameter of threaded pipe (4).
2. according to cooler for recycled exhaust gas core body claimed in claim 1, it is characterized in that: described guide plate (3) has two, is separately positioned on cooler for recycled exhaust gas core body both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205946497U CN202926492U (en) | 2012-11-12 | 2012-11-12 | EGR (Exhaust Gas Recirculation) cooler core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012205946497U CN202926492U (en) | 2012-11-12 | 2012-11-12 | EGR (Exhaust Gas Recirculation) cooler core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202926492U true CN202926492U (en) | 2013-05-08 |
Family
ID=48216464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012205946497U Withdrawn - After Issue CN202926492U (en) | 2012-11-12 | 2012-11-12 | EGR (Exhaust Gas Recirculation) cooler core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202926492U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104378A (en) * | 2012-11-12 | 2013-05-15 | 无锡双翼汽车环保科技有限公司 | Exhaust gas recirculation (EGR) cooler core body |
-
2012
- 2012-11-12 CN CN2012205946497U patent/CN202926492U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104378A (en) * | 2012-11-12 | 2013-05-15 | 无锡双翼汽车环保科技有限公司 | Exhaust gas recirculation (EGR) cooler core body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202926492U (en) | EGR (Exhaust Gas Recirculation) cooler core | |
| CN204572130U (en) | A kind of exhaust structure for diesel motor exhaust cooling | |
| CN103104378A (en) | Exhaust gas recirculation (EGR) cooler core body | |
| CN201526366U (en) | Automotive intercooler | |
| CN201530477U (en) | Exhausting equipment of unmanned aircraft | |
| CN202926493U (en) | EGR (Exhaust Gas Recirculation) cooler | |
| CN205841045U (en) | A kind of cooler for recycled exhaust gas of band corrugated tube | |
| CN104481983B (en) | Energy internal combustion engine flange | |
| CN204327330U (en) | Internal-combustion engine emission reduction fuel economizer | |
| CN203980741U (en) | A kind of idle call novel capillary shunt assembly | |
| CN204283619U (en) | Internal-combustion engine connecting plate | |
| CN204113504U (en) | A kind of high strength riveted structure of easy installation | |
| CN202659349U (en) | Translational adjustable exhaust injector | |
| CN203360420U (en) | Jacket tank | |
| CN202176839U (en) | Connecting pipe of engine | |
| CN202468065U (en) | Connecting pipe of EGR valve | |
| CN203081569U (en) | Main leaf and side board structure of intercooler | |
| CN202926491U (en) | EGR (exhaust gas recirculation) cooler with flanging structure | |
| CN204371471U (en) | A kind of exhaust end assembly of Novel exhaust manifold | |
| CN204152619U (en) | A kind of gas exhaust manifold and catalytic converter assembly being vented rear engine | |
| CN202220649U (en) | Forklift truck exhaust system | |
| CN202938553U (en) | Input and output component for evaporator of packaged air conditioner | |
| CN202789036U (en) | Catalyst gas inlet end cone | |
| CN201531885U (en) | Gas spray nozzle | |
| CN202093941U (en) | Oil filling nozzle for mutual inductor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130508 Effective date of abandoning: 20150325 |
|
| RGAV | Abandon patent right to avoid regrant |