CN219012728U - Pulse exhaust pipe and engine - Google Patents
Pulse exhaust pipe and engine Download PDFInfo
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- CN219012728U CN219012728U CN202223221551.XU CN202223221551U CN219012728U CN 219012728 U CN219012728 U CN 219012728U CN 202223221551 U CN202223221551 U CN 202223221551U CN 219012728 U CN219012728 U CN 219012728U
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- pipe
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- branch pipe
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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
Abstract
The utility model provides a pulse exhaust pipe and an engine thereof, wherein the pulse exhaust pipe comprises an exhaust manifold, a left side exhaust branch pipe and a right side exhaust branch pipe, and further comprises: the main pipe corrugated pipe is arranged on the exhaust main pipe; the pulse tube is provided with three connecting ports, and a first connecting port of the pulse tube is connected with the exhaust manifold through the manifold corrugated pipe; the right side corrugated pipe is connected with the second connecting port of the pulse pipe through the right side corrugated pipe; and the left side corrugated pipe is connected with the third connecting port of the pulse pipe through the left side corrugated pipe. The utility model can adapt to the installation application of complex exhaust pipes, the structure of the utility model has the characteristics of pulse conversion, the energy of exhaust gas can be fully utilized, the influence of the installation error and thermal deformation of the exhaust pipes can be compensated for a plurality of times through the main pipe and the branch pipe corrugated pipes, the exhaust vibration can be blocked, the supercharger can be operated quietly, and the energy saving and emission reduction effects are obvious.
Description
Technical Field
The utility model relates to the field of exhaust pipes, in particular to a pulse exhaust pipe and an engine.
Background
At present, an exhaust pipe of a common gas engine is generally of a simple integrated welding structure, and is forcedly installed in a cold state during actual installation, so that an irresolvable internal stress exists in an exhaust pipe system, and during the working process of the engine, the internal stress is further expanded and extended due to high-temperature exhaust, and the deformation of a shell of the supercharger or the displacement of the supercharger can be caused when the internal stress is serious, so that the stable working condition of the supercharger is broken, the rotor of the supercharger generates additional vibration, and the service life of the supercharger is shortened. In addition, most gas engine exhaust pipes do not use pulse conversion pipes or are unreasonable in design, and the exhaust gas energy cannot be fully and efficiently utilized to drive the turbocharger to do rotary motion work, so that the engine is low in thermal efficiency and poor in economical efficiency.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide a pulse exhaust pipe and an engine thereof, the pulse exhaust pipe can adapt to the installation and application of a complex exhaust pipe, the structure of the pulse exhaust pipe has the characteristics of pulse conversion, the energy of exhaust gas can be fully utilized, the influence of the installation error and thermal deformation of the exhaust pipe can be compensated for a plurality of times through a main pipe and a branch pipe corrugated pipe, the exhaust vibration can be blocked, the quiet running of a supercharger can be realized, the actual use can be verified, and the excellent experimental result can be obtained through a plurality of times of experiments, so that the energy saving and emission reduction effects are obvious.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows:
the utility model provides a pulse exhaust pipe, comprising:
an exhaust manifold, a left side exhaust branch pipe and a right side exhaust branch pipe;
further comprises:
the main pipe corrugated pipe is arranged on the exhaust main pipe;
the pulse tube is provided with three connecting ports, and a first connecting port of the pulse tube is connected with the exhaust manifold through the manifold corrugated pipe;
the right side corrugated pipe is connected with the second connecting port of the pulse pipe through the right side corrugated pipe;
and the left side corrugated pipe is connected with the third connecting port of the pulse pipe through the left side corrugated pipe.
The left corrugated pipe compensates for the left exhaust branch pipe installation, and the right corrugated pipe compensates for the right exhaust branch pipe installation;
the main pipe corrugated pipe and the branch pipe corrugated pipe compensate and eliminate the installation and thermal deformation influence, block the exhaust vibration, ensure that no internal stress is transmitted to the supercharger shell when the exhaust system is in an operating state, and ensure that the supercharger operates quietly and efficiently.
In some embodiments, the pulse tube comprises a left side tube and a right side tube, each comprising a bend and a weld. The bending part of the left side pipe is provided with the third connecting port, the bending part of the right side pipe is provided with the second connecting port, and the two welding parts form the first connecting port through welding.
In some embodiments, the welding parts are half pipes cut from standard pipe fittings, and the cutting positions of the two welding parts are opposite and welded.
The pulse tube has the characteristics of simple structure, and can fully utilize the pulse energy of exhaust gas at two sides to push the turbine of the supercharger to rotate for doing work.
In some embodiments, the left side exhaust branch pipe and the right side exhaust branch pipe are equal in diameter and at the same elevation.
In some embodiments, the exhaust manifold diameter is 1-2 times the diameters of the left and right side exhaust branches.
In some embodiments, the exhaust manifold diameter is 1.3 times the left and right side exhaust manifold diameters.
By applying the design mode, the pulse exhaust pipe can fully maintain the maximum kinetic energy of the exhaust gas, eliminate the exhaust gas disturbance as much as possible and effectively merge the left and right side exhaust gas.
In some embodiments, the pulse exhaust pipe is entirely chevron spatially symmetric.
In some embodiments, the right side exhaust branch pipe and the left side exhaust branch pipe are respectively provided with a fixing piece at one end close to the air inlet, and the two fixing pieces are positioned at the same opposite horizontal position.
In some embodiments, the fixing piece is provided with a group of threaded holes, and the fixing piece is fixed on the using equipment through matched screws, so that the pulse exhaust pipe can work more stably.
In addition, the utility model also provides an engine, which comprises the pulse exhaust pipe.
Compared with the prior art, the pulse exhaust pipe and the engine provided by the utility model have at least one of the following beneficial effects:
1. the pulse exhaust pipe provided by the utility model has the characteristics of simple structure and bilateral symmetry, so that the pulse exhaust pipe can be suitable for complex exhaust pipe installation application.
2. The pulse exhaust pipe provided by the utility model has the structure with pulse conversion, and can fully utilize the pulse energy of exhaust gas at two sides to push the turbine of the supercharger to rotate for doing work.
3. The pulse exhaust pipe comprises a main pipe corrugated pipe and a branch pipe corrugated pipe, wherein the main pipe corrugated pipe and the branch pipe corrugated pipe are used for compensating the influence of installation errors and thermal deformation of the exhaust pipe for a plurality of times, so that exhaust vibration is blocked, and the supercharger can operate quietly.
4. The pulse exhaust pipe provided by the utility model has the remarkable advantages of energy conservation and emission reduction through practical use.
Drawings
The above features, technical features, advantages and implementation modes of the present utility model will be further described in the following description of preferred embodiments with reference to the accompanying drawings in a clear and understandable manner.
FIG. 1 is a schematic diagram of a pulse exhaust pipe according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the gas flow direction of the purge pipe according to the embodiment of the present utility model;
fig. 3 is a schematic view of an axial side structure of an exhaust pipe according to an embodiment of the present utility model.
Reference numerals illustrate:
a right side exhaust branch pipe 1, a right side bellows 2, an exhaust manifold 3, a manifold bellows 4, a pulse tube 5, a left side bellows 6 and a left side exhaust branch pipe 7.
Detailed Description
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will explain the specific embodiments of the present utility model with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the utility model, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For the sake of simplicity of the drawing, the parts relevant to the present utility model are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
It should be further understood that the term "and/or" as used in this specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.
In this context, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
In one embodiment, referring to fig. 1 of the drawings, the present utility model provides a pulse exhaust pipe, including: exhaust manifold 3, left side exhaust branch pipe 7 and right side exhaust branch pipe 1, further include: a manifold bellows 4, the manifold bellows 4 being arranged on the exhaust manifold 3; the pulse tube 5, the pulse tube 5 is provided with three connectors, and the first connector of the pulse tube 5 is connected with the exhaust manifold 3 through the manifold corrugated pipe 4; a right bellows 2, and a right exhaust branch pipe 1 is connected with a second connection port of the pulse tube 5 through the right bellows 2; left bellows 6, left exhaust branch pipe 7 is connected to the third connection port of pulse tube 5 via left bellows 6.
In the present embodiment, the left bellows 6 compensates for the left exhaust manifold 7 installation and the right bellows 2 compensates for the right exhaust manifold 1 installation; the main pipe corrugated pipe 4, the left corrugated pipe 6 and the right corrugated pipe 2 compensate and eliminate the installation and thermal deformation influence, block the exhaust vibration, ensure that no internal stress is transmitted to the supercharger shell when the exhaust system is in an operating state, and ensure that the supercharger operates quietly and efficiently.
In one embodiment, pulse tube 5 comprises a left side tube and a right side tube, each comprising a bend and a weld. The bending part of the left side pipe is provided with a third connecting port, the bending part of the right side pipe is provided with a second connecting port, and the two welding parts form a first connecting port through welding. The welding parts are half pipes formed by cutting standard pipe fittings, and the cutting positions of the two welding parts are oppositely arranged and welded.
In this embodiment, the pulse tube 5 has a simple structure, and can fully utilize the pulse energy of exhaust gas at two sides to drive the turbine of the supercharger to rotate to apply work, and through multiple tests, a very excellent test result is obtained, and the energy-saving and emission-reducing effects are obvious, so that the engine has high thermal efficiency and better economical efficiency.
In other embodiments, the welded joint is prone to rust over long periods of use due to the risk of corrosion associated with the welding process. And the welding quality has larger dependence on welding technology, and the pipe connection quality is difficult to control stably. Therefore, the connection portion of the left tube and the right tube of pulse tube 5 can also be a flange connection, that is, the connection portion of the left tube and the right tube is fixed on one flange plate, then a flange pad is added between the two flange plates, and finally the two flange plates are tightly combined by tightening the two flange plates with bolts.
In one embodiment, referring to fig. 1 and 3 of the drawings, the left side exhaust branch pipe 7 is equal in diameter to the right side exhaust branch pipe 1 and is at the same elevation. The whole pulse exhaust pipe is in a herringbone space symmetry type.
In this embodiment, the pulse exhaust pipe has the characteristics of simple structure and bilateral symmetry, so that the pulse exhaust pipe can be suitable for complex exhaust pipe installation application and can cope with different installation environments.
In other embodiments, the left side exhaust branch pipe 7 and the right side exhaust branch pipe 1 are positioned at the same horizontal position, so that the pulse exhaust pipe is in a Y shape as a whole, and the pulse exhaust pipe can cope with narrower application environments.
In one embodiment, the exhaust manifold 3 has a diameter 1-2 times the diameters of the left and right exhaust branch pipes 7 and 1.
In this embodiment, the pulse exhaust pipe can join the left and right exhaust gases, and vibration generated when the engine is operated can be reduced as much as possible.
In one embodiment, referring to fig. 1 and 3 of the drawings, the exhaust manifold 3 has a diameter 1.3 times the diameters of the left and right exhaust branch pipes 7 and 1.
It should be noted that by applying the size design mode, the pulse exhaust pipe can fully maintain the maximum kinetic energy of the exhaust gas, eliminate the exhaust gas disturbance as much as possible, and effectively merge the left and right exhaust gas, so that in the working process of the engine, the extra vibration can be reduced, the supercharger can be operated more stably, and the service life of the supercharger is prolonged.
In one embodiment, referring to fig. 1 and 3 of the drawings, the right side exhaust branch pipe 1 and the left side exhaust branch pipe 7 are each provided with a fixing member at one end near the intake port, and the two fixing members are at opposite same horizontal positions. The fixing piece is provided with a group of threaded holes, and the fixing piece is fixed on the using equipment through matched screws, so that the pulse exhaust pipe can work more stably.
In other embodiments, the spatial location is: the two fixing pieces can also be arranged above one end of the right side exhaust branch pipe 1 and one end of the left side exhaust branch pipe 7, which are close to the air inlet, and specifically, the positions of the fixing pieces can be changed according to different use environments and different use devices; the fixing mode is as follows: besides mechanical fixing methods, other physical fixing methods such as hot sleeve fixing and cold expansion fixing can be used when the two fixing pieces are fixed on using equipment, and chemical fixing methods such as epoxy resin bonding fixing can be used, so that the epoxy resin has very strong adhesive force to various metal and nonmetal surfaces, and is high in mechanical strength, small in shrinkage rate, good in chemical stability and good in technological performance, so that the two fixing pieces can be widely applied to die assembly. In the bonding, the bonding portion should be roughened so as to be firmly bonded. However, the main disadvantage of epoxy bonding is that it is not resistant to high temperatures and has low hardness, so that it is more preferable to use inorganic bonding for fixing, and the inorganic bonding agent is formed by mixing a phosphoric acid solution of aluminum hydroxide and copper oxide powder in a fixed amount, and uses the mixture for bonding related parts. The method has simple and convenient bonding, no deformation and 600 ℃ high temperature resistance.
Compared with the prior art, the utility model has at least the following beneficial effects:
the pulse exhaust pipe provided by the utility model can be suitable for complex exhaust pipe installation application, has the advantages of pulse conversion of a structural belt, full utilization of exhaust energy, multiple compensation of exhaust pipe installation errors and thermal deformation effects through the main pipe and the branch pipe corrugated pipe, blocking of exhaust vibration, quiet running of a supercharger, actual use verification, excellent experimental results, and remarkable characteristics of energy conservation and emission reduction.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. A pulse exhaust pipe comprises an exhaust main pipe, a left side exhaust branch pipe and a right side exhaust branch pipe, and is characterized in that,
further comprises: the main pipe corrugated pipe is arranged on the exhaust main pipe;
the pulse tube is provided with three connecting ports, and a first connecting port of the pulse tube is connected with the exhaust manifold through the manifold corrugated pipe;
the right side corrugated pipe is connected with the second connecting port of the pulse pipe through the right side corrugated pipe;
and the left side corrugated pipe is connected with the third connecting port of the pulse pipe through the left side corrugated pipe.
2. A pulse exhaust pipe according to claim 1, wherein,
the pulse tube comprises a left side tube and a right side tube, each comprising a bend and a weld;
the bending part of the left side pipe is provided with the third connecting port, the bending part of the right side pipe is provided with the second connecting port, and the two welding parts form the first connecting port through welding.
3. A pulse exhaust pipe according to claim 2, wherein,
the welding parts are half pipes formed by cutting standard pipe fittings, and the cutting positions of the two welding parts are oppositely arranged and welded.
4. A pulse exhaust pipe according to claim 1, wherein,
the diameters of the left side exhaust branch pipe and the right side exhaust branch pipe are equal and are on the same elevation.
5. A pulse exhaust pipe according to claim 1, wherein,
the diameter of the exhaust manifold is 1-2 times of the diameters of the left side exhaust branch pipe and the right side exhaust branch pipe.
6. A pulse exhaust pipe according to claim 5, wherein,
the exhaust manifold diameter is 1.3 times the diameters of the left side exhaust branch pipe and the right side exhaust branch pipe.
7. A pulse exhaust pipe according to claim 1, wherein,
the whole pulse exhaust pipe is in a herringbone space symmetry type.
8. A pulse exhaust pipe according to any one of claims 1-7, wherein,
the right side exhaust branch pipe and the left side exhaust branch pipe are respectively provided with a fixing piece at one end close to the air inlet, and the two fixing pieces are at the same opposite horizontal position.
9. A pulse exhaust pipe according to claim 8, wherein,
the fixing piece is provided with a group of threaded holes and is fixed on the using equipment through matched screws.
10. An engine, which is characterized in that,
comprising a pulse exhaust pipe according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223221551.XU CN219012728U (en) | 2022-12-02 | 2022-12-02 | Pulse exhaust pipe and engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223221551.XU CN219012728U (en) | 2022-12-02 | 2022-12-02 | Pulse exhaust pipe and engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219012728U true CN219012728U (en) | 2023-05-12 |
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ID=86269236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223221551.XU Active CN219012728U (en) | 2022-12-02 | 2022-12-02 | Pulse exhaust pipe and engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219012728U (en) |
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2022
- 2022-12-02 CN CN202223221551.XU patent/CN219012728U/en active Active
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