CN203655401U - High temperature resistant high-nickel cast iron exhaust manifold - Google Patents
High temperature resistant high-nickel cast iron exhaust manifold Download PDFInfo
- Publication number
- CN203655401U CN203655401U CN201320718051.9U CN201320718051U CN203655401U CN 203655401 U CN203655401 U CN 203655401U CN 201320718051 U CN201320718051 U CN 201320718051U CN 203655401 U CN203655401 U CN 203655401U
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- exhaust manifold
- cast iron
- temperature resistant
- air
- high temperature
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Abstract
The utility model discloses a high temperature resistant high-nickel cast iron exhaust manifold. The high temperature resistant high-nickel 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 perpendicular with the axes of air outlets; notches are arranged on the air inlet flanges among the air-in holes, and the notches are perpendicular to a connecting line of the circle centers of the adjacent air-in holes. Thermal stress among the air inlet flanges of the exhaust manifold, stress on the flanges and stress on a rib plate can be relieved through the adoption of sand casting, the disconnected design of the air inlet flanges and the hollowed design of the rib plate among the casings of the exhaust pipelines which are close to the air-in holes. 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 petrolic gas exhaust manifold working heat load of turbocharged edition 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 high nickel cast iron gas exhaust manifold using in a kind of turbocharged edition petrol 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 high nickel cast iron gas 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 vertical 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 gusset between the adjacent and close exhaust duct housing of described inlet hole is provided with opening.Like this, be conducive to discharge the stress on flange and gusset.
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 multiple thermal shields lugs 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 disconnection design and the gusset between the housing of the exhaust duct near inlet hole to hollow out design, like this, can alleviate the thermal stress between gas exhaust manifold suction port flange and discharge the stress on flange and gusset.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 high nickel cast iron gas 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 vertical with the axis of air outlet; On described suction port flange 2 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 gusset 5 between adjacent exhaust duct 1 housing is provided with opening 5.1, and described opening is near inlet hole 2.1.Also, between downtake pipe road 1.1 housings and second exhaust pipe road 1.2 housings, between second exhaust pipe road 1.2 housings and the 3rd exhaust duct 1.3 housings, the gusset 5 between the 3rd exhaust duct 1.3 housings and the 4th exhaust duct 1.4 housings is provided with opening 5.1.Like this, be conducive to discharge the stress on flange and gusset.
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, described downtake pipe road 1.1 and second exhaust pipe road 1.2 are provided with multiple thermal shields lug 6 are installed.Like this, can be used as the fastening point of later stage exhaust manifold thermal shield.
Claims (5)
1. a high temperature resistant high nickel cast iron gas 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 vertical 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 high nickel cast iron gas 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 high nickel cast iron gas exhaust manifold according to claim 1 and 2, is characterized in that: the gusset between the adjacent and close exhaust duct housing of described inlet hole is provided with opening.
4. high temperature resistant high nickel cast iron gas exhaust manifold according to claim 1, is characterized in that: the end face of described outlet(discharge) flange is provided with circular groove.
5. high temperature resistant high nickel cast iron gas exhaust manifold according to claim 1, is characterized in that: described first and the housing of the 4th exhaust duct be provided with multiple thermal shields lugs be installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718051.9U CN203655401U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant high-nickel cast iron exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320718051.9U CN203655401U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant high-nickel cast iron exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203655401U true CN203655401U (en) | 2014-06-18 |
Family
ID=50921800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320718051.9U Expired - Lifetime CN203655401U (en) | 2013-11-14 | 2013-11-14 | High temperature resistant high-nickel cast iron exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203655401U (en) |
-
2013
- 2013-11-14 CN CN201320718051.9U patent/CN203655401U/en not_active Expired - Lifetime
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |