CN203655400U - High temperature resistant cast iron exhaust manifold - Google Patents
High temperature resistant cast iron exhaust manifold Download PDFInfo
- Publication number
- CN203655400U CN203655400U CN201320717987.XU CN201320717987U CN203655400U CN 203655400 U CN203655400 U CN 203655400U CN 201320717987 U CN201320717987 U CN 201320717987U CN 203655400 U CN203655400 U CN 203655400U
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- Prior art keywords
- exhaust
- high temperature
- temperature resistant
- exhaust manifold
- resistant cast
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- Expired - Fee Related
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- 229910001018 Cast iron Inorganic materials 0.000 title claims abstract description 13
- 230000001154 acute effect Effects 0.000 claims description 3
- 230000035882 stress Effects 0.000 abstract description 11
- 238000005266 casting Methods 0.000 abstract description 4
- 238000007528 sand casting Methods 0.000 abstract description 3
- 230000008646 thermal stress Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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Abstract
The utility model discloses a high temperature resistant cast iron exhaust manifold. The high temperature resistant cast iron exhaust manifold comprises a plurality of exhaust pipelines, air inlet flanges and an outlet flange, wherein a plurality of air-in holes are formed in the air inlet flanges; one ends of the exhaust pipelines are connected with the air-in holes of the air inlet flanges, and the other ends of the exhaust pipelines are combined into a channel and connected with the outlet flange; the axes of air inlets of the exhaust pipelines are parallel to the axes of air outlets; notches are arranged on the air inlet flanges among the air-in holes, and the notches are perpendicular with a connecting line of the circle centers of the adjacent air-in holes. Thermal stress among the air inlet flanges of the exhaust manifold can be relieved through the adoption of sand casting and the disconnected design of the air inlet flanges. Stress relief holes are formed in the casing at a part where the second exhaust pipeline is connected with the third exhaust pipeline along a central line so as to relieve concentrated stress in the casting process. Therefore, the requirements of high thermal load, high vibration strength and small leakage quantity can be met.
Description
Technical field
The utility model belongs to technical field of engines, is specifically related to a kind of enmgine exhaust.
Background technique
Gas exhaust manifold is one of parts of motor most critical, and the function of vent systems is with as far as possible little exhaust resistance and noise, the waste gas in cylinder is discharged in atmosphere, and meets car load emission regulation demands.Exhaust manifold assembly belongs to vent systems hot junction part, and continuous firing under worst hot case is very easily subject to alternating hot and cold and impacts.Along with improving constantly of engine performance, the heat load of its component and mechanical load also increase thereupon.The gas exhaust manifold working heat load of supercharged engine is large, and ocsillator strenght is high, and working environment is extremely severe.
Model utility content
The utility model is for the deficiency in above-mentioned background technology, the high temperature resistant cast-iron exhaust manifold using in a kind of supercharged engine vent systems is provided, under the working environment that it is large in heat load, ocsillator strenght is high, alternating hot and cold impacts, can normally work, to meet power character and the Economy requirement of motor.
The technical solution adopted in the utility model is: a kind of high temperature resistant cast-iron exhaust manifold, comprises first, second, third and the 4th exhaust duct, suction port flange and outlet(discharge) flange; Suction port flange is provided with multiple inlet holes; Described first to fourth exhaust duct one end is connected with the inlet hole of suction port flange, first and the 4th exhaust duct in conjunction with, second be combined with the 3rd exhaust duct, and then accumulate a passage and be connected with outlet(discharge) flange; It is characterized in that: the suction port axis of described first to fourth exhaust duct is parallel with the axis of air outlet; On the described suction port flange between described inlet hole, be provided with breach, described breach is vertical with the connecting line in the center of circle of adjacent inlet hole.
Preferably, the width of described breach is 3 millimeters～3.5 millimeters.Like this, effectively alleviate the thermal stress between gas exhaust manifold suction port flange.
Preferably, the housing of described second exhaust pipe road and the 3rd exhaust duct junction and be provided with stress relief hole along center line.Like this, concentrate with the stress discharging in casting process.
Further preferred, the angle that the axis of described stress relief hole becomes with outlet(discharge) flange face is acute angle.
Preferably, the end face of described outlet(discharge) flange is provided with circular groove.Like this, in circular groove, place " V " type seal ring, avoid the Leakage Gas between gas exhaust manifold and pressurized machine.
Preferably, described first and the housing of the 4th exhaust duct be provided with thermal shield lug be installed.Like this, can be used as the fastening point of later stage exhaust manifold thermal shield.
The beneficial effects of the utility model are: adopt sand casting process, suction port flange adopts and disconnects design, to alleviate the thermal stress between gas exhaust manifold suction port flange; At the housing of second exhaust pipe road and the 3rd exhaust duct junction and be provided with stress relief hole along center line, concentrate with the stress discharging in casting process, thereby can meet high heat load, high ocsillator strenght, requirement that leakage rate is few.
Accompanying drawing explanation
Fig. 1 is front elevational schematic of the present utility model
Fig. 2 is schematic top plan view of the present utility model
Fig. 3 is schematic rear view of the present utility model
Embodiment
As shown in Figure 1 to Figure 3, the utility model adopts the sand casting process of GJSA-XNiSiCr-35-5-2 material, and resistance to heat is good.A kind of high temperature resistant cast-iron exhaust manifold, comprises at least four exhaust ducts 1 (1.1,1.2,1.3,1.4), suction port flange 2 and outlet(discharge) flange 3; Suction port flange 2 is provided with multiple inlet holes 2.1; Described first to fourth exhaust duct (1.1-1.4) one end is connected with the inlet hole 2.1 of suction port flange 2, downtake pipe road 1.1 and the 4th exhaust duct 1.4 be in conjunction with, second exhaust pipe road 1.2 and the 3rd exhaust duct 1.3 combinations, and then accumulate a passage and be connected with outlet(discharge) flange 3; The suction port axis of described first to fourth exhaust duct 1 is parallel with the axis of air outlet; On described suction port flange 2 housings between inlet hole 2.1, be provided with width and be the breach 4 of 3 millimeters～3.5 millimeters, described breach 4 is vertical with the connecting line in the center of circle of adjacent inlet hole 2.1.
Preferably, the housing of described second exhaust pipe road 1.2 and the 3rd exhaust duct 1.3 junctions and be provided with stress relief hole 5 along center line.3 angles that become of the axis of described stress relief hole 5 and outlet(discharge) flange are acute angle, and also, stress relief hole 5 is obliquely installed.Concentrate in order to the stress discharging in casting process like this.
Preferably, the end face of described outlet(discharge) flange 3 is provided with circular groove 3.1.Like this, at the interior placement of circular groove 3.1 " V " type seal ring, avoid the Leakage Gas between gas exhaust manifold and pressurized machine.
Preferably, on described downtake pipe road 1.1 and the 4th exhaust duct 1.2, be respectively equipped with a thermal shield lug 6 is installed.Like this, can be used as the fastening point of later stage exhaust manifold thermal shield.
Claims (6)
1. a high temperature resistant cast-iron exhaust manifold, comprises first, second, third and the 4th exhaust duct, suction port flange and outlet(discharge) flange; Suction port flange is provided with multiple inlet holes; Described first to fourth exhaust duct one end is connected with the inlet hole of suction port flange, first and the 4th exhaust duct in conjunction with, second be combined with the 3rd exhaust duct, and then accumulate a passage and be connected with outlet(discharge) flange; It is characterized in that: the suction port axis of described first to fourth exhaust duct is parallel with the axis of air outlet; On the described suction port flange between described inlet hole, be provided with breach, described breach is vertical with the connecting line in the center of circle of adjacent inlet hole.
2. high temperature resistant cast-iron exhaust manifold according to claim 1, is characterized in that: the width of described breach is 3 millimeters～3.5 millimeters.
3. high temperature resistant cast-iron exhaust manifold according to claim 1 and 2, is characterized in that: the housing of described second exhaust pipe road and the 3rd exhaust duct junction and be provided with stress relief hole along center line.
4. high temperature resistant cast-iron exhaust manifold according to claim 3, is characterized in that: the angle that the axis of described stress relief hole becomes with outlet(discharge) flange face is acute angle.
5. high temperature resistant cast-iron exhaust manifold according to claim 1, is characterized in that: the end face of described outlet(discharge) flange is provided with circular groove.
6. high temperature resistant cast-iron exhaust manifold according to claim 1, is characterized in that: described first and the housing of the 4th exhaust duct be provided with thermal shield lug be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717987.XU CN203655400U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant cast iron exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717987.XU CN203655400U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant cast iron exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655400U true CN203655400U (en) | 2014-06-18 |
Family
ID=50921799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717987.XU Expired - Fee Related CN203655400U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant cast iron exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725161A (en) * | 2017-10-31 | 2018-02-23 | 重庆长安汽车股份有限公司 | A kind of exhaust manifold for being used for four cylinder turbogenerators |
-
2013
- 2013-11-14 CN CN201320717987.XU patent/CN203655400U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725161A (en) * | 2017-10-31 | 2018-02-23 | 重庆长安汽车股份有限公司 | A kind of exhaust manifold for being used for four cylinder turbogenerators |
| CN107725161B (en) * | 2017-10-31 | 2020-04-07 | 重庆长安汽车股份有限公司 | Exhaust manifold for four-cylinder turbine engine |
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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: 20140618 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |