CN103452635B - A kind of gas exhaust manifold of two-cycle engine - Google Patents
A kind of gas exhaust manifold of two-cycle engine Download PDFInfo
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- CN103452635B CN103452635B CN201310208309.5A CN201310208309A CN103452635B CN 103452635 B CN103452635 B CN 103452635B CN 201310208309 A CN201310208309 A CN 201310208309A CN 103452635 B CN103452635 B CN 103452635B
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- arm
- exhaust manifold
- gas exhaust
- cycle engine
- air outlet
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Abstract
The invention discloses a kind of gas exhaust manifold of two-cycle engine, comprise the first arm, second arm, 3rd arm and the 4th arm, the turbosupercharger of one end connecting engine of described first arm, the another two ends of described first arm are connected with described second arm and described 3rd arm respectively, described 3rd arm connects described 4th arm, the air outlet flue outlet of the lower end import connecting engine cylinder of described first arm, described first arm, described second arm, adopt Flange joint between described 3rd arm and described 4th arm and be equipped with gasket seal.The invention has the beneficial effects as follows: the three-port structure of employing clam shell Type of Welding, processing technology is simple, efficiency is higher, and its internal surface rounding off after welding, can keep higher mechanical strength when high temperature.
Description
Technical field
The present invention relates to two-cycle engine field, be specifically related to a kind of gas exhaust manifold of two-cycle engine.
Background technique
By convention, for the cylinder according to array, V-type, the arrangement of W type, its air outlet flue outlet relative position is all comparatively near, and this, with regard to bringing for the design of gas exhaust manifold conveniently, is convenient to make respectively to be in charge of merge into house steward in shorter distance.Thus gas exhaust manifold is generally designed to as a whole and can not be split.When high temperature, suffered stress is larger.And for opposed pistons, opposed cylinder, single cylinder double-exhaust port motor, the relative position between its air outlet flue exit position is comparatively far away, even if each distance be in charge of is longer, finally also house steward will be merged into.Be in charge of to merge into house steward for longer each, part is in charge of the limitation being limited to space and arranging, has to cause this component temperature too high near some component of motor and affects the performance of these component.Therefore have to carry out Design on thermal insulation to gas exhaust manifold.The gas exhaust manifold of opposed piston type engine will be different from traditional exhaust manifold structure.
When pipeline is triplate line, generally be welded together to form three-way pipe with two tubes, this structure is 700 ~ 800 DEG C of mechanical strengths making to affect pipe in delivery temperature, the smooth degree of two other pipe its inwall after welding will reduce, and can flow through like this cause harmful effect herein to air-flow.When two steel pipes weld with certain angle, the less welding procedure of its angle is more complicated.
By the three-way pipe that two clam shell welding are formed, be characterized in that processing technology is simple, efficiency is high, and its internal surface rounding off after welding, can keep higher mechanical strength when high temperature.
Chinese patent CN202645699U discloses a kind of gas exhaust manifold of motor, comprise connect successively gas exhaust manifold leading portion, gas exhaust manifold stage casing and gas exhaust manifold back segment, gas exhaust manifold leading portion and gas exhaust manifold back segment are provided with air input joint, stage casing is provided with air outlet adapter to gas exhaust manifold, and gas exhaust manifold leading portion and gas exhaust manifold back segment are symmetrical arranged about the median plane in gas exhaust manifold stage casing.The invention also discloses a kind of motor with above-mentioned gas exhaust manifold.The gas exhaust manifold that the utility model provides is three stage structure, and gas exhaust manifold leading portion and gas exhaust manifold back segment are symmetrical arranged about the median plane in gas exhaust manifold stage casing, when processing this gas exhaust manifold, gas exhaust manifold leading portion and gas exhaust manifold back segment can adopt same fixture and mould, the kind of the machining tool needed for this gas exhaust manifold is obviously reduced, thus reduces the processing cost of this gas exhaust manifold.
Chinese patent CN201650430U discloses a kind of exhaust manifold thermal shield, in the gap of double L-shaped gasket end portion snapping built with cushion pad, at cushion pad and washer center, bolt is housed.The utility model structure is simple, reasonable in design, improve the thermal shield life-span, reduce engine noise, add vibration damping structure, owing to adopting this vibration damping structure, avoid the vibratory impulse between exhaust thermal shield and gas exhaust manifold installation base and construction bolt, and then reduce the impact of vibration on thermal shield.
Summary of the invention
For the problems referred to above that available engine gas exhaust manifold exists, the invention provides the gas exhaust manifold of the higher two-cycle engine of a kind of efficiency.
The technological scheme that the present invention is adopted for achieving the above object is:
A kind of gas exhaust manifold of two-cycle engine, it is characterized in that, comprise the first arm, second arm, 3rd arm and the 4th arm, the turbosupercharger of one end connecting engine of described first arm, the another two ends of described first arm are connected with described second arm and described 3rd arm respectively, described 3rd arm connects described 4th arm, the air outlet flue outlet of the lower end suction port connecting engine cylinder of described first arm connects, described first arm, described second arm, adopt Flange joint between described 3rd arm and described 4th arm and be equipped with gasket seal.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, described first arm is the house steward that the waste gas of motor left and right cylinder discharge carries out converging, the caliber of described first arm and described air outlet flue outlet connection is less than the caliber after bout, described first arm comprises bellows and thermal baffle, described bellows is arranged at the supervisor of described first arm respectively and is in charge of, the air outlet flue outlet port under place and connecting engine left side cylinder of being in charge of of described first arm forms transition pipe by clam shell welding, described transition pipe is connected by bend pipe, welding support on described bend pipe, described support is provided with described thermal baffle.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, one end of described second arm connects described first arm, the upper air outlet flue outlet of the other end connecting engine left side cylinder of described second arm, described second arm is provided with several sections of the second thermal baffles to surround pipeline, and described second thermal baffle is by the second stent support.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, described 3rd arm is that the pipeline of air outlet flue up and down of the right cylinder merges into the three-port structure of a pipeline, and described 3rd arm has two pipelines to be import, and a pipeline is outlet; Described three-port structure is welded by clam shell, the second bellows and the second bend pipe are welded in described import respectively, described second bend pipe connects one first triangle flange, described second bellows also connects the 3rd less bend pipe of a diameter, described 3rd bend pipe forms transition tube by clam shell welding, described transition tube connects one the 1 angle flange, and formed with motor on the right of the interface that exports of the upper air outlet flue of cylinder; Described outlet connection 1 the 4th bend pipe, described 4th bend pipe is welded with support, described support arranges some thermal baffles.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, described 4th arm comprises top straight tube and lower knuckle pipe, the cross section of described top straight tube is oval, the cross section of described lower knuckle pipe is circular, described top straight tube and described lower knuckle Guan Jun form transition tube by clam shell welding, the transition tube of described lower knuckle pipe connects one the 24 angle flange, and formation exports with the lower air outlet flue of cylinder on the right of motor the suction port be connected, the transition tube of described top straight tube connects one second triangle flange.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, motor left side cylinder combustion gas, by the conveying of described first arm and described second arm, is converging close to described first branch outlet place and is entering turbosupercharger; On the right of motor, inblock cylinder goes out the conveying of waste gas by described 3rd arm and described 4th arm, converges enter turbosupercharger at the clam shell place of the 3rd arm.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, described gasket seal is the corrosion resistant plate of 0.3mm, is provided with circumference type projection within it, makes it have better sealing effect near hole.
The gas exhaust manifold of above-mentioned two-cycle engine, wherein, described first arm, described second arm, described 3rd arm and described 4th arm are Stainless Steel Tube or corrosion resistant plate.
The invention has the beneficial effects as follows: the three-port structure of employing clam shell Type of Welding, processing technology is simple, efficiency is higher, and its internal surface rounding off after welding, can keep higher mechanical strength when high temperature.
Accompanying drawing explanation
Fig. 1 is the plan view of the gas exhaust manifold of a kind of two-cycle engine of the present invention;
Fig. 2 is the plan view of the first arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention;
Fig. 3 is the plan view of the second arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention;
Fig. 4 is the plan view of the 3rd arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention;
Fig. 5 is the plan view of the 4th arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described, but not as limiting to the invention.
The gas exhaust manifold of a kind of two-cycle engine of the present invention as shown in Figure 1, whole gas exhaust manifold is made up of the first arm 10, second arm 20, the 3rd arm 30, the 4th arm 40 and gasket seal 50, and link comprises flange face bolt 11, spacer for bolt combination 12, bolt 13, nut 14 form; Because motor has two cylinders, each cylinder has two air outlet flue outlets, two air outlet flue outlet combustion gas of left side cylinder enter turbosupercharger after the first arm 10 and the second arm 20 after the rear end of the first arm 10 is converged, two air outlet flue outlet combustion gas of the right cylinder converge at the afterbody of the 3rd arm 30 after the 4th arm 40 and the 3rd arm 30, then enter turbosupercharger through another house steward of the first arm 10.Sealed by gasket seal 50 between first arm 10, second arm 20, the 3rd arm 30 and the 4th arm 40, connected by flange face bolt 11 between arm, gasket seal 50 is the corrosion resistant plate impact briquetting of 0.3mm, there is the projection of a circumference type within it near hole, mainly play better seal action.Whole pipeline all selects Stainless Steel Tube, corrugated stainless steel tubing, corrosion resistant plate stamping part to be welded.
The plan view of the first arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention as shown in Figure 2, the first arm 10 is assemblies that each cylinder discharges that exhaust gas merger becomes respective house steward, is again the waste gas outlet passage of air outlet flue under the cylinder of the left side.Under the cylinder of the left side, the waste gas in air outlet flue outlet port is through flange 113, then be that two clam shells 112 and 114 are welded transition pipe, transition pipe is then bend pipe 115, bend pipe 115 is welded with support (not illustrating), support is provided with thermal baffle 111, connected by two bolts 13, then be corrugated stainless steel tubing 109, ripple number is 5, and be one section of bend pipe 108, be then enter air outlet flue combustion gas on three-way pipe and left side cylinder that two clam shells 102 and 103 are welded into converge and enter turbosupercharger.All the other two exit end welding triangle flanges 107 of the three-way pipe that these two clam shells 102 and 103 are welded into, the other end welds four angle flanges 101 (flange mating face direction is towards the right side), triangle flange 107 (flange mating face is directed upwardly) is connected with the second arm 20, four angle flanges 101 are connected with turbosupercharger (turbosupercharger is not shown), in first arm 10, another part pipeline is the main pipe rail of the right cylinder combustion gas, pipe 104 passes through shaping, its one end is welded with four angle flanges 101, the other end is pipe and is weldingly connected with bellows 105, ripple number is 6, other one end of bellows 105 is welded with triangle flange 106, form the triangle flange 106 be connected with the 3rd arm 30.
The plan view of the second arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention as shown in Figure 3, one end of second arm 20 is connected by flange face bolt 11 with the triangle flange 107 of the first arm 10, and the other end is exported with air outlet flue on the cylinder of the left side and is connected by bolt 13.Triangle flange 201 welds with steel pipe 202, the other end of steel pipe 202 welds with two clam shells 209 and 211 transition pipe formed and welds, transition pipe finally welds with four angle flanges 205, and four angle flanges 205 export with air outlet flue on the cylinder of the left side and are connected (left hand cylinder is not shown).It is heat insulation that the periphery of steel pipe 202 and clam shell 211 has 3 pieces of thermal baffles 203,204 and 208 to be used for.Thermal baffle support welding is on steel pipe 202 and clam shell 211, and thermal baffle support welds welded nut again, just these three pieces of thermal baffles can be fixed on the second arm 20 by bolt 13.
The plan view of the 3rd arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention as shown in Figure 4, the 3rd arm 30 is a three-way pipe generally, wherein has two to be import, and one is outlet.Three-way pipe part is welded by two clam shells 315 and 316, triplate line is welded into by two clam shells 315 and 316, instead of be welded by two round steel pipe, solve greatly and cause air-flow to converge the impact of the flow separation caused herein by steel-pipe welding.Triplate line two entrance points weld with bellows 307 and stainless steel elbow 313 respectively, and stainless steel elbow 313 defines a suction port welding with triangle flange 314; The stainless steel elbow 305 that the other end of bellows 307 is less with another diameter welds, stainless steel elbow 305 welds with two clam shells 317 and 318 and forms transition tube and weld, transition tube is welded with four angle flanges 301 again, defines the interface of the upper air outlet flue outlet of right cylinder (not illustrating).This interface is connected with air outlet flue outlet(discharge) flange in right cylinder by bolt 13.The outlet of triplate line is welded with a stainless steel elbow 309, and other one end of stainless steel elbow 309 is welded with triangle flange 311, defines the discharge coupling of the 3rd arm 30, and flange 311 is connected by flange face bolt 11 with the flange 306 of the first arm 10.Stainless steel elbow 309 welds the support 312 of the 3rd arm 30, and support 312 devises two fixed holes, stamps out some stiffening ribs or flange to strengthen its intensity on support.Can process by general steel plate between 3rd arm 30.On the top of the 3rd arm 30, three pieces of thermal baffles 303,306 and 308 are used.At stainless steel elbow 309 and 313, and weld welded nut 14 on thermal baffle support, thermal baffle support on clam shell 315 and 318, three pieces of thermal baffles 303,306 and 308 can be fixed up by bolt combination pad 12.Stop too much heat upwards radiation.
The plan view of the 4th arm of the gas exhaust manifold of a kind of two-cycle engine of the present invention as shown in Figure 5, the pipeline portions of the 4th arm 40 is made up of steel pipe and each clam shell, the cross section of middle one section of stainless-steel pipe 404 has two kinds, and lower curved portion is circular, and straight section position, top is oval; Lower curved portion welds with clam shell 406 and 407 transition tube formed and welds, the other end of transition tube welds with four angle flanges 405, what form arm four exports with air outlet flue under right cylinder (not illustrating) suction port be connected, top straight section welds with clam shell 402 and 403 transition pipe formed and welds, and the other end of transition pipe welds the air outlet of formation the 4th arm 40 with triangle flange 401.
The foregoing is only preferred embodiment of the present invention, not thereby limit claim of the present invention, so the equivalent structure change that all utilizations specification of the present invention and diagramatic content are made, be all included in protection scope of the present invention.
Claims (8)
1. the gas exhaust manifold of a two-cycle engine, it is characterized in that, comprise the first arm, second arm, 3rd arm and the 4th arm, the turbosupercharger of one end connecting engine of described first arm, the another two ends of described first arm are connected with described second arm and described 3rd arm respectively, described 3rd arm connects described 4th arm, the air outlet flue outlet of the lower end suction port connecting engine cylinder of described first arm, described first arm, described second arm, adopt Flange joint between described 3rd arm and described 4th arm and be equipped with gasket seal,
The air outlet flue outlet port under place and connecting engine left side cylinder of being in charge of of described first arm forms transition pipe by clam shell welding;
Described 3rd arm is that the pipeline of air outlet flue up and down of the right cylinder merges into the three-port structure of a pipeline, and described three-port structure is welded by clam shell;
Described 4th arm comprises top straight tube and lower knuckle pipe, and described top straight tube and described lower knuckle Guan Jun form transition tube by clam shell welding.
2. the gas exhaust manifold of two-cycle engine as claimed in claim 1, it is characterized in that, described first arm is the house steward that the waste gas of motor left and right cylinder discharge carries out converging, the caliber of described first arm and described air outlet flue outlet connection is less than the caliber after converging, described first arm comprises bellows and thermal baffle, described bellows is arranged at the supervisor of described first arm respectively and is in charge of, described transition pipe is connected by bend pipe, welding support on described bend pipe, described support is provided with described thermal baffle.
3. the gas exhaust manifold of two-cycle engine as claimed in claim 1, it is characterized in that, one end of described second arm connects described first arm, the upper air outlet flue outlet of the other end connecting engine left side cylinder of described second arm, described second arm is provided with several sections of the second thermal baffles to surround pipeline, and described second thermal baffle is by the second stent support.
4. the gas exhaust manifold of two-cycle engine as claimed in claim 1, it is characterized in that, described 3rd arm has two pipelines to be import, and a pipeline is outlet; The second bellows and the second bend pipe are welded in described import respectively, described second bend pipe connects one first triangle flange, described second bellows also connects the 3rd less bend pipe of a diameter, described 3rd bend pipe forms transition tube by clam shell welding, described transition tube connects one the 1 angle flange, and formed with motor on the right of the interface that exports of the upper air outlet flue of cylinder; Described outlet connection 1 the 4th bend pipe, described 4th bend pipe is welded with support, described support arranges some thermal baffles.
5. the gas exhaust manifold of two-cycle engine as claimed in claim 4, it is characterized in that, the cross section of described top straight tube is oval, the cross section of described lower knuckle pipe is circular, the transition tube of described lower knuckle pipe connects one the 24 angle flange, and formation exports with the lower air outlet flue of cylinder on the right of motor the suction port be connected, the transition tube of described top straight tube connects one second triangle flange.
6. the gas exhaust manifold of two-cycle engine as claimed in claim 1, is characterized in that, motor left side cylinder combustion gas, by the conveying of described first arm and described second arm, is converging close to described first branch outlet place and entering turbosupercharger; On the right of motor, inblock cylinder goes out the conveying of waste gas by described 3rd arm and described 4th arm, converges enter turbosupercharger at the clam shell place of the 3rd arm.
7. the gas exhaust manifold of two-cycle engine as claimed in claim 1, it is characterized in that, described gasket seal is the corrosion resistant plate of 0.3mm, is provided with circumference type projection within it near hole.
8. the gas exhaust manifold of two-cycle engine as claimed in claim 1, it is characterized in that, described first arm, described second arm, described 3rd arm and described 4th arm are Stainless Steel Tube or corrosion resistant plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208309.5A CN103452635B (en) | 2013-05-30 | 2013-05-30 | A kind of gas exhaust manifold of two-cycle engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310208309.5A CN103452635B (en) | 2013-05-30 | 2013-05-30 | A kind of gas exhaust manifold of two-cycle engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103452635A CN103452635A (en) | 2013-12-18 |
| CN103452635B true CN103452635B (en) | 2016-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310208309.5A Expired - Fee Related CN103452635B (en) | 2013-05-30 | 2013-05-30 | A kind of gas exhaust manifold of two-cycle engine |
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| Country | Link |
|---|---|
| CN (1) | CN103452635B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438830A (en) * | 1993-06-16 | 1995-08-08 | Nissan Motor Co., Ltd. | Exhaust system of internal combustion engine |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05332133A (en) * | 1992-05-27 | 1993-12-14 | Fuji Heavy Ind Ltd | Exhaust device of horizontal opposed four cylinder engine |
| US6581377B2 (en) * | 2001-07-20 | 2003-06-24 | Metaldyne Tubular Products, Inc. | Carburization of vehicle manifold flanges to prevent corrosion |
| JP4668231B2 (en) * | 2007-04-10 | 2011-04-13 | 川崎重工業株式会社 | Engine exhaust system |
| JP4624459B2 (en) * | 2008-11-25 | 2011-02-02 | トヨタ自動車株式会社 | Exhaust manifold |
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2013
- 2013-05-30 CN CN201310208309.5A patent/CN103452635B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5438830A (en) * | 1993-06-16 | 1995-08-08 | Nissan Motor Co., Ltd. | Exhaust system of internal combustion engine |
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| CN103452635A (en) | 2013-12-18 |
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Granted publication date: 20160330 Termination date: 20180530 |