CN203879598U - Stainless-steel exhaust manifold - Google Patents
Stainless-steel exhaust manifold Download PDFInfo
- Publication number
- CN203879598U CN203879598U CN201420261315.7U CN201420261315U CN203879598U CN 203879598 U CN203879598 U CN 203879598U CN 201420261315 U CN201420261315 U CN 201420261315U CN 203879598 U CN203879598 U CN 203879598U
- Authority
- CN
- China
- Prior art keywords
- exhaust manifold
- air flue
- flange
- air
- way
- 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.)
- Expired - Lifetime
Links
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 24
- 239000010935 stainless steel Substances 0.000 title claims abstract description 24
- 239000000446 fuel Substances 0.000 abstract description 4
- 239000003054 catalyst Substances 0.000 abstract 1
- 238000007599 discharging Methods 0.000 abstract 1
- 229910001018 Cast iron Inorganic materials 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N Acetylene Chemical compound C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Landscapes
- Exhaust Silencers (AREA)
Abstract
The utility model relates to the field of automobile parts, in particular to a stainless-steel exhaust manifold which comprises an inlet flange, an outlet flange, a connecting pipe connected in the outlet flange, and a stainless-steel exhaust way connected between the inlet flange and the connecting pipe. The stainless-steel exhaust way comprises a first air way, a second air way, a third air way and a fourth air way which are mutually independent and are connected with the inlet flange and the connecting pipe respectively, mounting protruding portions are arranged on a cylinder cover combining face, combined with a cylinder cover, of the inlet flange and arranged on port peripheries, connected with the four air ways, of the cylinder cover combining face, and each mounting protruding portion protrudes the cylinder cover combining face by 0.2-0.5mm. Mass of the exhaust manifold can be effectively lowered to improve fuel economy while heat stability of the exhaust manifold is improved, and ignition of a three-way catalyst is accelerated during cold starting to improve discharging performance of an engine.
Description
Technical field
The utility model relates to auto parts and components field, particularly a kind of gas exhaust manifold being connected with motor car engine.
Background technique
As shown in Figure 3, this gas exhaust manifold is cast-iron exhaust manifold to existing exhaust manifold structure, and the first air flue 12, the second air flue 13, the 3rd air flue 14, the 4th air flue 15 inlet ends are connected with suction flange 11 respectively; In one end, air outlet, the first air flue 12, the 4th air flue 15, the second air flues 13, the 3rd air flue 14 first converge respectively, then are connected with outlet(discharge) flange 16, jointly converge and enter car load outlet pipe afterwards.This gas exhaust manifold has the following disadvantages: one, and this gas exhaust manifold is cast-iron exhaust manifold, part quality is large, is unfavorable for Fuel Economy; Its two, cast-iron exhaust manifold need absorb a large amount of heats in the time of cold start-up, is unfavorable for three-element catalytic ignition; Its three, cast-iron exhaust manifold easily produces thermal stress and concentrates, thermostability is not as stainless steel welding gas exhaust manifold; Its four, between the each cylinder of this gas exhaust manifold, there is no special air outlet flue (first, the 4th air flue converges, second, third air flue converges), easily produce the exhaust interference between each cylinder.
Summary of the invention
The purpose of this utility model is to provide a kind of gas exhaust manifold of stainless steel, it can effectively reduce gas exhaust manifold quality to improve fuel economy, improve gas exhaust manifold thermostability, ternary catalyzing unit ignition while accelerating cold start-up, to improve motor emission performance simultaneously.
The technological scheme that the utility model adopts is for achieving the above object: a kind of gas exhaust manifold of stainless steel, comprise suction flange, outlet(discharge) flange, be connected to the connecting tube in outlet(discharge) flange, the gas exhaust manifold of this stainless steel also comprises the stainless steel air outlet flue being connected between described suction flange and connecting tube, and this stainless steel air outlet flue comprises separate and is connected respectively the first air flue, the second air flue, the 3rd air flue, the 4th air flue with described suction flange and connecting tube; The cylinder cap junction plane that described suction flange is combined with cylinder cap is provided with installation bump, bump is installed and is arranged on respectively the interface periphery that cylinder cap junction plane is connected with each air flue, and the surperficial 0.2-0.5mm of bump protrusion cylinder cap junction plane is installed.
The gas exhaust manifold of the stainless steel of the utility model has following beneficial effect: the utility model adopts stainless steel air outlet flue, and gas exhaust manifold quality is significantly reduced, and is conducive to the raising of Fuel Economy; Separate between the each air flue of gas exhaust manifold after improvement, reduce each cylinder exhaust interference, improve exhaust efficiency; Gas exhaust manifold after improvement has good thermostability, and increase working life, and ternary catalyzing unit ignition while accelerating cold start-up, to improve motor emission performance; The utility model is provided with installation bump on cylinder cap junction plane, processes bump is installed, and makes suction flange and cylinder cap junction plane planeness be improved to ensure sealability, has reduced as much as possible again the impact on suction flange thickness simultaneously.
Brief description of the drawings
Fig. 1 is the structural representation of the gas exhaust manifold of the stainless steel of the utility model;
The schematic diagram of the cylinder cap junction plane of gas exhaust manifold shown in Fig. 2 Fig. 1;
Fig. 3 is the structural representation of prior art gas exhaust manifold;
The utility model primary component label declaration: 1-cylinder cap junction plane, 2-the first air flue, 3-suction flange, 4-the second air flue, 5-the 3rd air flue, 6-the 4th air flue, 7-connecting tube, 8-outlet(discharge) flange, 9-installs bump, 10-interface.
Embodiment
As shown in Figure 1 and Figure 2, the gas exhaust manifold (being called for short " gas exhaust manifold ") of the stainless steel of the utility model, comprise suction flange 3, outlet(discharge) flange 8, be connected to the connecting tube 7 in outlet(discharge) flange 8, the gas exhaust manifold of this stainless steel also comprises the stainless steel air outlet flue being connected between described suction flange 3 and connecting tube 7, and this stainless steel air outlet flue comprises separate and is connected respectively the first air flue 2, the second air flue 4, the 3rd air flue 5, the 4th air flue 6 with described suction flange 3 and connecting tube 7.The first air flue 2, the second air flue 4, the 3rd air flue 5, the 4th air flue 6 are to be bent and formed by Stainless Steel Tube, the first air flue 2, the second air flue 4, the 3rd air flue 5, the 4th air flue 6 inlet ends are connected with the air flue interface 10 of suction flange 3 by the mode of welding respectively, and the first air flue 2, the second air flue 4, the 3rd air flue 5, the 4th air flue 6 outlet sides are also connected with connecting tube 7 by the mode of welding respectively.
The cylinder cap junction plane 1 that described suction flange 3 is combined with cylinder cap (not shown) is provided with installs bump 9, dash area is bump 9 is installed as shown in Figure 2, bump 9 is installed and is separately positioned on interface 10 peripheries that cylinder cap junction plane 1 is connected with each air flue, the surperficial 0.2-0.5mm that bump 9 protrudes cylinder cap junction plane 1 is installed, in the present embodiment, the surperficial 0.3mm that bump 9 protrudes cylinder cap junction plane 1 is installed, the surface that certain installation bump 9 protrudes cylinder cap junction plane 1 is also not limited to 0.3mm, also can be other value within the scope of 0.2 mm or 0.5mm or 0.2-0.5mm.The periphery that bump 9 extends to bolt mounting holes is installed, is processed bump 9 is installed, make suction flange 3 and cylinder cap junction plane 1 planeness be improved to ensure sealability, reduced as much as possible again the impact on suction flange 3 thickness simultaneously.
After gas exhaust manifold has welded, the cylinder cap junction plane 1 of suction flange 3 is connected with cylinder head exhaust flange (not shown); The connecting tube 7 in outstanding outlet(discharge) flange 8 outsides is connected with car load vent systems (not shown).
Claims (2)
1. the gas exhaust manifold of a stainless steel, comprise suction flange (3), outlet(discharge) flange (8), be connected to the connecting tube (7) in outlet(discharge) flange (8), it is characterized in that, the gas exhaust manifold of this stainless steel also comprises the stainless steel air outlet flue being connected between described suction flange (3) and connecting tube (7), and this stainless steel air outlet flue comprises separate and is connected respectively the first air flue (2), the second air flue (4), the 3rd air flue (5), the 4th air flue (6) with described suction flange (3) and connecting tube (7).
2. the gas exhaust manifold of a kind of stainless steel as claimed in claim 1, it is characterized in that, the cylinder cap junction plane (1) that described suction flange (3) is combined with cylinder cap is provided with installs bump (9), bump (9) is installed and is separately positioned on interface (10) periphery that cylinder cap junction plane (1) is connected with each air flue, the surperficial 0.2-0.5mm of bump (9) protrusion cylinder cap junction plane (1) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261315.7U CN203879598U (en) | 2014-05-21 | 2014-05-21 | Stainless-steel exhaust manifold |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420261315.7U CN203879598U (en) | 2014-05-21 | 2014-05-21 | Stainless-steel exhaust manifold |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203879598U true CN203879598U (en) | 2014-10-15 |
Family
ID=51680104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420261315.7U Expired - Lifetime CN203879598U (en) | 2014-05-21 | 2014-05-21 | Stainless-steel exhaust manifold |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203879598U (en) |
-
2014
- 2014-05-21 CN CN201420261315.7U patent/CN203879598U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141015 |