CN204572264U - Bypass type cooler for recycled exhaust gas - Google Patents
Bypass type cooler for recycled exhaust gas Download PDFInfo
- Publication number
- CN204572264U CN204572264U CN201520254655.1U CN201520254655U CN204572264U CN 204572264 U CN204572264 U CN 204572264U CN 201520254655 U CN201520254655 U CN 201520254655U CN 204572264 U CN204572264 U CN 204572264U
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- Prior art keywords
- bypass
- gas
- gas barrier
- bypass tube
- cooler
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- 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
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- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses a kind of bypass type cooler for recycled exhaust gas, comprise the bypass valve of cooler, bypass tube and control air inflow, described cooler comprises the little sandwich type element in large centre, two, is provided with U-shaped finned cooling airway in housing, and the middle part of U-shaped finned cooling airway has been horizontally disposed with gas barrier; Cooling airway above described gas barrier is inlet end, and the cooling airway below gas barrier is outlet side; Described bypass tube is vertically arranged on the gas in-out end of gas barrier and is connected as a single entity with gas barrier, and the middle part of bypass tube is provided with suction tude; Described bypass valve is arranged in bypass tube.The utility model adopts finned cooling air passage structure, not only greatly reduces volume, improves cooling effectiveness, but also reduce cost of production; The utility model adopts bypass valve to control the gas flow that need cool, and achieves the accurate control of cooling effectiveness.
Description
Technical field
The utility model relates to engine exhaust emission recirculating system technical field, particularly a kind of motor car engine cooler for recycled exhaust gas.
Background technique
In engine exhaust-gas recirculating system (egr system), EGR valve is mainly used in the flow of regulable control EGR gas, electric EGR valve is by the aperture size of inner DC MOTOR CONTROL suction port, pneumatic EGR valve then controls degree of vacuum size by vacuum governor, thus the aperture size of indirect control EGR is to regulate exhaust gas flow, return cylinder after waste gas is mixed by a certain percentage with fresh air and carry out recirculation, burn temperature and velocity of combustion to reduce cylinder combustion, reduce NO further
xdischarge amount.Cooler for recycled exhaust gas for reducing Engine Inlet Temperature, thus reduces combustion temperature, reduces NO further
xdischarge amount, also can compensate the increase of the fuel consumption brought because installing EGR valve additional simultaneously.The flat tubular structure of the many employings of current cooler for recycled exhaust gas, not only complex structure, cost is higher, and cooling effectiveness is also lower.
Summary of the invention
The utility model technical issues that need to address are to provide that a kind of structure is simple, small volume, cooler for recycled exhaust gas with low cost.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
Bypass type cooler for recycled exhaust gas, comprises the bypass valve of cooler, bypass tube and control air inflow, and described cooler comprises the little sandwich type element in large centre, two, is provided with U-shaped finned cooling airway in housing, and the middle part of U-shaped finned cooling airway has been horizontally disposed with gas barrier; Cooling airway above described gas barrier is inlet end, and the cooling airway below gas barrier is outlet side; Described bypass tube is vertically arranged on the gas in-out end of gas barrier and is connected as a single entity with gas barrier, and the middle part of bypass tube is provided with suction tude; Described bypass valve is arranged in bypass tube.
Above-mentioned bypass type cooler for recycled exhaust gas, described bypass valve is arranged on cooler casing, is gas-powered formula structure; Described bypass valve comprises upper cover equipped mutually and lower cover, and the top of upper cover is provided with position transducer; Epithelium cavity being divided into epicoele and cavity of resorption is provided with in cavity between upper cover and lower cover, the spring that top is connected with upper cover, bottom is connected with epithelium is provided with in epicoele, be provided with top in cavity of resorption to connect epithelium, bottom and stretch into center-pole in bypass tube, the center-pole end being arranged in bypass tube is provided with the spool equipped with bypass tube inner chamber.
Owing to have employed above technological scheme, acquired by the utility model, technological progress is as follows.
The utility model adopts finned cooling air passage structure, not only greatly reduces volume, improves cooling effectiveness, but also reduce cost of production; The utility model adopts bypass valve to control the gas flow that need cool, and achieves the accurate control of cooling effectiveness.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Wherein: the bottom of 4-cooler, 5-bypass valve, 6-inlet end, 7-outlet side, 8-housing, 9-fin, 10-gas barrier, 11-bypass tube, 12-suction tude, 13-intake pipe, 15-position transducer, 16-upper cover, 17-epithelium, 18-lower cover, 19-spring, 20-center-pole, 21-spool, 22-bypass tube, the upper end of 23-bypass tube.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
Bypass type cooler for recycled exhaust gas, its structure as shown in Figure 1.Bypass type cooler for recycled exhaust gas comprises cooler 4, bypass tube 11 and bypass valve 5; Cooler adopts fin structure, higher than tubular cooler cooling effectiveness, adopts bypass valve to control the gas flow that need cool simultaneously, can realize the accurate control of cooling effectiveness.
Cooler comprises housing 8, and housing adopts formula structure of being small at both ends and big in the middle, and effectively can avoid the generation of resonance phenomenon.Be provided with cooling airway in housing 8, housing exterior walls be provided with intake pipe 13 and outlet pipe.Cooling airway adopts U-shaped fin structure, and the middle part of U-shaped finned cooling airway has been horizontally disposed with gas barrier 10; Cooling airway above gas barrier 10 is inlet end 6, and the cooling airway below gas barrier 10 is outlet side 7.The setting of gas barrier 10, circulates by U-shaped in cooling procedure for realizing gas; Cooling airway adopts U-shaped structure, effectively can save space.Between cooling airway, circulation has cooling water, for cooled gas; Cooling airway adopts finned air flue, and larger compared with the film-cooled heat in cast air flue, cooling effectiveness is higher, and under the condition of identical cooling effectiveness, this cooler volume is less.
Bypass tube 11 is also arranged in housing, and bypass tube 11 is vertically arranged on the gas in-out end of gas barrier, and is connected as a single entity with gas barrier; The middle part of bypass tube 11 is provided with suction tude; Bypass valve 5 is arranged in bypass tube 11, and bypass valve 5 is for controlling the gas flow of the needs cooling of suction tude inflow.
The main body of bypass valve 5 is arranged on cooler casing 8, is gas-powered formula structure, can be effectively cost-saving on the basis meeting control accuracy requirement.As shown in Figure 1, comprise upper cover 16 equipped mutually and lower cover 18, the top of upper cover 16 is provided with position transducer 15 to the structure of bypass valve 5.The epithelium 17 cavity being divided into epicoele and cavity of resorption is provided with in cavity between upper cover 16 and lower cover 18; Epicoele is connected with vacuum source by tracheae, is also provided with spring 19 in epicoele, and the top of spring 19 is connected with upper cover 16, bottom is connected with epithelium 17; Be provided with center-pole 20 in cavity of resorption, the top connection epithelium 17 of center-pole 20, bottom stretch in bypass tube 11, and the center-pole end being arranged in bypass tube 11 is provided with the spool 21 equipped with bypass tube 11 inner chamber.
During the work of bypass type cooler for recycled exhaust gas, when gas is entered in bypass tube 11 by suction tude, as spool 21 is in the bottom 22 of bypass tube 11, then gas can only enter the inlet end of finned cooling airway through the upper end 23 of bypass tube 11, after finned cooling airway cooling, exported by the outlet side 7 of cooler, because the waste gas by entering suction tude all cools, so the cooling effectiveness of gas is maximum under state.
Bleed to bypass valve 5, make the smaller volume of epithelium and upper cover, be i.e. epicoele smaller volume, now spring-compressed, drive center-pole 20 and spool 21 to move in bypass tube 11, make spool 21 be placed in bypass tube 11 upper end 23; Now, after gas enters bypass tube 11 from suction tude, directly flow into closure by bypass tube 11 bottom 22, now gas cools without cooler, and the cooling effectiveness of this state gas is minimum.
When needs regulate cooling effectiveness, regulate the rate of air sucked in required of bypass valve 5, spring 19 is shunk, i.e. the position of controllable valve core in bypass tube, thus the throughput of gas through bypass tube 11 upper end 23 and bottom 22 can be controlled.The position transducer 15 that bypass valve 5 is arranged, can be in position in bypass tube 11 by precision control valve core 21, thus realize the object of accurate controlled cooling model efficiency.
Claims (2)
1. bypass type cooler for recycled exhaust gas, it is characterized in that: the bypass valve (5) comprising cooler (4), bypass tube (11) and control air inflow, described cooler comprises the little sandwich type element in large centre, two (8), be provided with U-shaped finned cooling airway in housing (8), the middle part of U-shaped finned cooling airway has been horizontally disposed with gas barrier (10); The cooling airway of described gas barrier (10) top is inlet end (6), and the cooling airway of gas barrier (10) below is outlet side (7); Described bypass tube (11) is vertically arranged on the gas in-out end of gas barrier and is connected as a single entity with gas barrier, and the middle part of bypass tube is provided with suction tude; Described bypass valve (5) is arranged in bypass tube (11).
2. bypass type cooler for recycled exhaust gas according to claim 1, is characterized in that: described bypass valve (5) is arranged on cooler casing (8), is gas-powered formula structure; Described bypass valve (5) comprises upper cover (16) equipped mutually and lower cover (18), and the top of upper cover (16) is provided with position transducer (15); The epithelium (17) cavity being divided into epicoele and cavity of resorption is provided with in cavity between upper cover (16) and lower cover (18), the spring (19) that top is connected with upper cover (16), bottom is connected with epithelium (17) is provided with in epicoele, be provided with in cavity of resorption that top connects epithelium (17), center-pole (20) in bypass tube (11) is stretched in bottom, the center-pole end being arranged in bypass tube (11) is provided with the spool (21) equipped with bypass tube (11) inner chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520254655.1U CN204572264U (en) | 2015-04-25 | 2015-04-25 | Bypass type cooler for recycled exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520254655.1U CN204572264U (en) | 2015-04-25 | 2015-04-25 | Bypass type cooler for recycled exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572264U true CN204572264U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520254655.1U Active CN204572264U (en) | 2015-04-25 | 2015-04-25 | Bypass type cooler for recycled exhaust gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN204572264U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747324A (en) * | 2015-04-25 | 2015-07-01 | 无锡隆盛科技股份有限公司 | Bypass type EGR (Exhaust Gas Recirculation) cooler |
| CN113464324A (en) * | 2021-07-27 | 2021-10-01 | 无锡双翼汽车环保科技有限公司 | Multichannel EGR cooler |
-
2015
- 2015-04-25 CN CN201520254655.1U patent/CN204572264U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104747324A (en) * | 2015-04-25 | 2015-07-01 | 无锡隆盛科技股份有限公司 | Bypass type EGR (Exhaust Gas Recirculation) cooler |
| CN113464324A (en) * | 2021-07-27 | 2021-10-01 | 无锡双翼汽车环保科技有限公司 | Multichannel EGR cooler |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |