CN211116313U - Novel mixer - Google Patents
Novel mixer Download PDFInfo
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- CN211116313U CN211116313U CN201922090433.1U CN201922090433U CN211116313U CN 211116313 U CN211116313 U CN 211116313U CN 201922090433 U CN201922090433 U CN 201922090433U CN 211116313 U CN211116313 U CN 211116313U
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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
- Y02T10/30—Use of alternative fuels, e.g. biofuels
Abstract
The utility model discloses a novel mixer, including the mixer body, the mixed core of gas, waste gas mixes the core, sets up the vortex ring at the mixed core air inlet of gas, and the vortex ring includes vortex blade and the guide post of setting in the middle of the vortex ring, the utility model discloses a natural gas mixing uniformity of mixer is about 97%, and it has improved the natural gas mixing uniformity, has improved the engine and has admitted air the homogeneity, has improved the power of engine, has reduced because of the inhomogeneous various trouble that produce of air and natural gas mixture, under same output, has reduced the consumption of natural gas, has practiced thrift the energy, and is more economical and applicable; the on-way pressure loss of the EGR gas of the mixer is about-7.27 kPa, the difficulty of taking the EGR gas from the exhaust pipe is reduced, the waste gas recycling efficiency is improved, the fault that the EGR gas cannot be or is difficult to obtain at the low rotating speed stage of the engine is solved, the harmful substances in the exhaust emission are effectively reduced, and the exhaust treatment cost is greatly reduced.
Description
Technical Field
The utility model relates to a gas engine technical field particularly, relates to a novel mixer.
Background
The mixer in the gas engine is to mix the air, natural gas and EGR gas to form combustible mixed gas to be supplied to the engine. The mixer should be able to mix the air, natural gas, EGR gas, all three sufficiently and uniformly.
The natural gas and air, EGR gas mix the inhomogenous gas engine and cause the gas engine to idle unstably easily, deposit charcoal, burn inadequately, trouble such as lacking etc., so the natural gas should mix evenly with air, EGR gas completely, the natural gas mixing uniformity should be 1, and the blender natural gas mixing uniformity of the existing patent reaches less than 1, about 95% at most, apart from mixing evenly completely and having certain gap.
On the other hand, if the on-way pressure loss of the EGR gas in the mixer is large, the difficulty of taking the EGR gas from the exhaust pipe is increased, and the exhaust gas recycling efficiency is reduced. The EGR gas on-way pressure loss of the existing patent is 8kPa at least, and the problem of failures such as incapability or difficulty in obtaining the EGR gas is easily caused at the low rotating speed stage of an engine, so that a novel mixer with low EGR gas on-way pressure loss is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel mixer, it can make natural gas, air, the gaseous three intensive mixing of EGR and mix the degree of consistency higher, simultaneously, improves waste gas and recycles efficiency, further reduces the harmful substance that the engine discharged, reduces the atmosphere pollution, the more efficient natural gas that utilizes.
The embodiment of the utility model is realized like this:
The utility model provides a novel mixer, it includes the blender body, connect the gas mixing core in blender body one end, connect the waste gas mixing core at the blender body other end, the vortex ring of setting at gas mixing core air inlet, the inside gas mixing channel and the waste gas mixing channel who is provided with the intercommunication of blender body, gas mixing channel is close to the one end of gas mixing core, gas mixing channel and waste gas mixing channel's intercommunication port footpath is less than gas mixing channel's inlet end and waste gas mixing channel's inlet end, make gas mixing channel and waste gas mixing channel form relative conical body region, the vortex ring includes vortex blade and the guide post of setting in the middle of the vortex ring.
In a preferred embodiment of the present invention, the gas mixing core is provided with a plurality of uniformly distributed natural gas injection holes on a circular conical surface, and the plurality of natural gas injection holes are located on the same horizontal plane.
In the preferred embodiment of the present invention, the mixer body is provided with a natural gas inlet on a side surface thereof, the gas mixing channel is communicated with the natural gas inlet through the natural gas nozzle, and the axis of the natural gas nozzle is perpendicular to the gas flow direction of the natural gas inlet.
In the preferred embodiment of the present invention, the side of the mixer body is provided with an EGR gas inlet, and the exhaust gas mixing passage communicates with the EGR gas inlet through the front end of the exhaust gas mixing core.
In a preferred embodiment of the present invention, the amount of the gas that can flow through the cross section of the conical body region of the EGR gas inlet bypassing the front end of the exhaust gas mixing core is equal.
In the preferred embodiment of the present invention, the flow guiding column is connected to one end of the plurality of turbulence blades, the turbulence blades are fan blade structures, and the fan blade structures are more and more gentle from being close to the flow guiding column to the gas mixing core.
In a preferred embodiment of the present invention, the plurality of spoiler blades intersect at the guide post and divide the air inlet into a plurality of uniform portions.
In the preferred embodiment of the present invention, a pressure measuring port is disposed on a side surface of the mixer body, the pressure measuring port is close to the gas mixing core, and the pressure of the pressure measuring port is equal to the pressure of the waste gas entering the waste gas mixing channel.
In the preferred embodiment of the present invention, the gas mixing core and the waste gas mixing core are respectively provided with a sealing ring to ensure the air tightness between the mixer body and the outside.
In the preferred embodiment of the present invention, the gas mixing core and the waste gas mixing core are provided with threaded holes, the threaded holes are respectively formed at the two ends of the mixer body, and the gas mixing core and the waste gas mixing core are respectively connected to the mixer body through screws so as to prevent the gas mixing core or the waste gas mixing core from rotating inside the mixer body.
The utility model has the advantages that:
The utility model forms a plurality of structures similar to Venturi tubes through the turbulent flow ring, the gas mixing channel and the waste gas mixing channel, so that the air is more uniformly mixed with the gas after being disturbed; when the air and natural gas mixed gas flows through the minimum section of the gas mixing channel, certain suction is generated on the waste gas entering the EGR gas inlet, and the on-way pressure loss of the EGR gas in the mixer is reduced; the waste gas mixing channel keeps a certain length, and the mixing uniformity is further improved.
The natural gas mixing uniformity of the mixer is about 97%, the natural gas mixing uniformity is improved, the air inlet uniformity of the engine is improved, the power of the engine is improved, various faults caused by uneven mixing of air and natural gas are reduced, the consumption of the natural gas is reduced under the same output power, the energy is saved, and the mixer is more economical and applicable.
The on-way pressure loss of the EGR gas of the mixer is about-7.27 kPa, the difficulty of taking the EGR gas from the exhaust pipe is reduced, and the waste gas recycling efficiency is improved. The problem that EGR gas cannot be obtained or is difficult to obtain at the low rotating speed stage of the engine is solved. Effectively reduces harmful substances in the tail gas emission, and greatly reduces the tail gas treatment cost. .
Drawings
To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, and it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope.
FIG. 1 is a schematic diagram of the mixer of the present invention;
FIG. 2 is an auxiliary view of the mixer of the present invention;
FIG. 3 is a bottom view of the mixer of the present invention;
FIG. 4 is a front view of the mixer of the present invention;
3 FIG. 3 5 3 is 3 a 3 sectional 3 view 3 A 3- 3 A 3 of 3 FIG. 3 4 3; 3
FIG. 6 is a graph of mixing profile at the outlet of a prior art mixer;
Fig. 7 is a distribution diagram of the mixing situation at the outlet of the mixer of the present invention.
Icon: 1-a spoiler blade; 2-a flow guide column; 3-a gas mixing core; 4-screws; 5-a pressure measurement port; 6-mixer body; 7-an exhaust gas mixing core; 8-EGR gas inlet; 9-sealing ring; 10-natural gas inlet; 11-natural gas spraying hole; 12-a gas mixing channel; 13-exhaust gas mixing channel.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
First embodiment
Referring to fig. 1 and 2, the embodiment provides a novel mixer, which includes a mixer body 6, a gas mixing core 3 connected to one end of the mixer body 6, a waste gas mixing core 7 connected to the other end of the mixer body 6, and a turbulence ring disposed at an air inlet of the gas mixing core 3, wherein the mixer body 6 is a hollow structure having a natural gas inlet 10 and an EGR gas inlet 8, the hollow structure has a gas mixing channel 12 and a waste gas mixing channel 13, the gas mixing core 3 is provided with the turbulence ring, the mixer forms a structure similar to a venturi tube through the turbulence ring, the gas mixing channel 12 and the waste gas mixing channel, so that the gas flow inside the mixer is mixed more uniformly, the mixing uniformity of the gas is improved, the power of the engine is improved, various faults caused by the non-uniform gas mixing are reduced, and the consumption of the natural gas is effectively reduced, is more economical and applicable.
Please refer to fig. 3, the spoiler ring includes a flow guiding column 2, and a spoiler blade 1 disposed in the flow guiding column 2 and the gas mixing core 3, the spoiler blade 1 is rotatable relative to the gas mixing core 3, the middle parts of the plurality of spoiler blades 1 are connected to the flow guiding column 2, the spoiler blade 1 is a fan blade structure, and the fan blade structure is gentler from being close to the flow guiding column 2 to the gas mixing core 3, the plurality of spoiler blades 1 intersect with the flow guiding column 2 and separate the air inlet into a plurality of uniform parts, specifically depending on the number of the spoiler blades 1, the spoiler blades 1 of the present embodiment are 5, and the separated parts are 5. The air inlet sets up at the vortex ring front end, and when the air current crossed vortex blade 1, part air received vortex blade 1's guide, got into the rotatory flow state, produced the disturbance with the air that does not receive the guide, changed the air from the laminar flow motion state into the turbulent flow motion state, more was favorable to the mixing of natural gas and air.
The ring conical surface of the gas mixing core 3 is provided with a plurality of natural gas spray holes 11 which are uniformly distributed, so that the natural gas spray holes 11 are distributed in a ring shape, the axis of the natural gas spray holes 11 is vertical to the air flow direction, namely the natural gas spray holes 11 are arranged at the gradually reduced position of the gas mixing channel 13, and the natural gas spray holes 11 are positioned on the same horizontal plane.
Referring to fig. 4 and 5, a gas mixing channel 12 and an exhaust gas mixing channel 13 are arranged in the mixer body 6 and are communicated with each other, the gas mixing channel 12 is close to one end of the gas mixing core 3, the exhaust gas mixing channel 13 is close to one end of the exhaust gas mixing core 7, the diameter of a communication port of the gas mixing channel 12 and the exhaust gas mixing channel 13 is smaller than that of an air inlet end of the gas mixing channel 12 and that of an air inlet end of the exhaust gas mixing channel 13, so that the gas mixing channel 12 and the exhaust gas mixing channel 13 form opposite conical body areas, and the exhaust gas mixing channel 13 is reserved with a certain length, so that the EGR gas, the natural gas and the air are.
The side of the mixer body is provided with a natural gas inlet 10, a gas mixing channel 12 is communicated with the natural gas inlet 10 through a natural gas spray hole 11, the axis of the natural gas spray hole 11 is vertical to the gas flow direction of the natural gas inlet 10, natural gas entering from the natural gas inlet 10 enters the gas mixing channel 13 from the natural gas spray hole 11 and is mixed with air entering the gas mixing channel 13 from the air inlet to form natural gas and air mixed gas.
The side of the mixer body 6 is provided with an EGR gas inlet 8 which is positioned at the middle position of the side of the mixer body 6, an exhaust gas mixing passage 13 is communicated with the EGR gas inlet 8 through the front end of an exhaust gas mixing core 7, the EGR gas entering from the EGR gas inlet 8 enters the mixer body 6, bypasses the front end of the exhaust gas mixing core 7 and then enters the exhaust gas mixing passage 13, due to the venturi effect, the flow rate of the air-natural gas mixture increases as the gas mixing passage 12 is narrowed, a low pressure is generated at a position communicating with the exhaust gas mixing passage 13, the EGR gas bypassing the front end of the exhaust gas mixing core 7 is adsorbed, so that the EGR gas is mixed with the natural gas and air mixed gas to form the EGR gas, the natural gas and air mixed gas, the gas enters the EGR gas inlet 8, and the amount of the gas which can flow through all cross sections of the conical body area of the exhaust gas mixing channel 13 after bypassing the front end of the exhaust gas mixing core 7 is equal.
The side of the mixer body 6 is provided with a pressure measuring port 5, the pressure measuring port 5 is provided with a pressure sensor, the pressure measuring port 5 is close to the gas mixing core 3, and the pressure of the pressure measuring port 5 is equal to the pressure of the waste gas entering the waste gas mixing channel 13. Along the air inlet direction, the gas mixing core 3 and the waste gas mixing core 7 are respectively provided with a sealing ring 9, the gas mixing core 3 is provided with 3 sealing rings 9, and the waste gas mixing core 7 is provided with 1 sealing ring 9, so that the air tightness between the mixer body 6 and the outside is ensured; in order to ensure the gas tightness of the connection of the mixer body 6 to external devices, sealing rings 9 are also provided near the air inlet and the mixture outlet, respectively. The gas mixing core 3 is provided with threaded holes, the two ends of the mixer body 6 are respectively provided with threaded holes, and the gas mixing core 3 and the waste gas mixing core 7 are respectively fixed to the two ends of the mixer body 6 through screws 4 so as to prevent the gas mixing core 3 or the waste gas mixing core 7 from rotating inside the mixer body 6 and ensure that the gas mixing core 3 and the waste gas mixing core 7 cannot fall off in the transportation process.
the patent of the prior art is analyzed, and the better mixer patent at present is retrieved, the patent number is "Z L201720159432.6", the patent name is "mixer and EGR mixer for gas engine", the disclosed mixer of the patent and right the utility model discloses a mixer carries out comparison operation, assesses the mixed condition of natural gas and air in the mixer.
The calculation uses the area-weighted uniformity of the gas volume content distribution (hereinafter referred to as uniformity) as an evaluation criterion. If the gas and the gas are completely and uniformly mixed, the uniformity is 1, and the closer the uniformity is to 1, the more uniform the mixing is. The calculation formula is as follows:
Wherein b is the uniformity of the volume content distribution of the gas, a iGas volume content, s, at each point iTo measure at each point on the surface.
all analytical calculations herein use SolidWorks to generate a three-dimensional model, import into ANSYS by transformation, divide the watershed and then use ICEM CFD to generate a mesh, and finally use F L UENT software to perform the calculations.
The calculation uses steady state calculation, using a k-two equation turbulence model, with air (23.3% oxygen and remaining nitrogen), natural gas (methane), EGR gas (carbon dioxide) inlets all given constant mass flow boundaries, outlets set to constant pressure boundaries, and boundary conditions used for the analysis calculation are:
TABLE 1 boundary conditions
The uniformity of mixing of the natural gas at the outlet of the prior patents and this example is compared as shown in the following table:
TABLE 2 comparison of mixing homogeneity
The comparison of the on-way pressure loss (differential pressure) between the prior patents and the present embodiment is shown in the following table:
TABLE 3 EGR gas Endurance pressure loss (pressure difference) inside mixer
Please refer to fig. 6 and 7, fig. 6 is the mixing condition distribution diagram at the mixer outlet of the listed prior patent, fig. 7 is the mixing condition distribution diagram at the mixer outlet of the scheme two, and it can be known from the above results that the mixer of the present invention has greatly improved the mixing uniformity of the mixer relative to the mixer of the scheme one, and moreover, the utility model discloses a mixing uniformity (0.97039723) of the mixer has also reached top level in industry, the utility model discloses a mixer reduces along the journey pressure loss of the mixer EGR gas relative to the scheme one by a wide margin, and the utility model discloses the EGR gas along journey pressure loss (-7.27kPa) of the mixer has also reached top level in industry.
To sum up, the embodiment of the utility model connects the flow guiding column through the turbulence blades to form the flow guiding ring, which generates the flow guiding effect to the gas, forms the airflow channel through the natural gas orifice arranged on the gas mixing core, and forms the venturi structure through the gas mixing channel and the waste gas mixing channel, so that the air is mixed with the gas fully and uniformly after being disturbed; the mixer can reduce the on-way pressure loss of EGR gas in the mixer, improves the mixing uniformity, improves the air inlet uniformity of the engine, improves the power of the engine, reduces various faults caused by uneven mixing of air and natural gas, reduces the consumption of the natural gas under the same output power, saves the energy, is more economical and applicable, and effectively reduces harmful substances in tail gas emission.
This description describes examples of embodiments of the invention, and is not intended to illustrate and describe all possible forms of the invention. It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention, and it is to be understood that the scope of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the teachings of the present invention without departing from the spirit of the invention, and such modifications and combinations are still within the scope of the invention.
Claims (10)
1. A novel mixer is characterized by comprising a mixer body (6), a gas mixing core (3) connected with one end of the mixer body (6), a waste gas mixing core (7) connected with the other end of the mixer body (6), and a turbulent flow ring arranged at an air inlet of the gas mixing core (3), a gas mixing channel (12) and a waste gas mixing channel (13) which are communicated are arranged in the mixer body (6), the gas mixing channel (12) is close to one end of the gas mixing core (3), the diameter of a communication port of the gas mixing channel (12) and the waste gas mixing channel (13) is smaller than the gas inlet end of the gas mixing channel (12) and the gas inlet end of the waste gas mixing channel (13), so that the gas mixing channel (12) and the exhaust gas mixing channel (13) form opposite conical body areas, the turbulent flow ring comprises turbulent flow blades (1) and a flow guide column (2) arranged in the middle of the turbulent flow ring.
2. The novel mixer according to claim 1, characterized in that the gas mixing core (3) is provided with a plurality of uniformly distributed natural gas jet holes (11) on the conical surface, and the plurality of natural gas jet holes (11) are located on the same horizontal plane.
3. The novel mixer according to claim 2, characterized in that the mixer body (6) is provided with a natural gas inlet (10) at the side, the gas mixing channel (12) is communicated with the natural gas inlet (10) through a natural gas jet hole (11), and the axis of the natural gas jet hole (11) is perpendicular to the gas flow direction of the natural gas inlet (10).
4. The novel mixer according to claim 2, characterized in that the mixer body (6) is provided with an EGR gas inlet (8) at the side, and the exhaust gas mixing passage (13) is communicated with the EGR gas inlet (8) through the front end of the exhaust gas mixing core (7).
5. A novel mixer according to claim 4, characterized in that the EGR gas inlet (8) bypasses the front end of the exhaust gas mixing core (7) and enters the conical area of the exhaust gas mixing channel (13) with an equal amount of gas flow through the cross-section.
6. The novel mixer according to claim 1, characterized in that one end of a plurality of said turbulators (1) is connected to the flow guiding column (2), said turbulators (1) are fan blade structures, and the fan blade structures are gentler from the position close to the flow guiding column (2) to the gas mixing core (3).
7. A new mixer according to claim 6, characterized in that a number of said spoiler blades (1) intersect at the deflector column (2) and divide the air inlet into uniform sections.
8. A new mixer according to claim 1, characterized in that the mixer body (6) is provided with a pressure measuring port (5) at the side, the pressure measuring port (5) is close to the gas mixing core (3), and the pressure of the pressure measuring port (5) is equal to the pressure of the exhaust gas entering the exhaust gas mixing channel (13).
9. A new mixer according to claim 1, characterized in that the gas mixing core (3) and the exhaust gas mixing core (7) are provided with respective sealing rings (9) to ensure the gas tightness between the mixer body (6) and the outside.
10. The new mixer in accordance with claim 1, characterized by that, the gas mixing core (3) and the exhaust gas mixing core (7) are provided with threaded holes, the mixer body (6) is provided with threaded holes at both ends, the gas mixing core (3) and the exhaust gas mixing core (7) are connected to the mixer body (6) by screws (4) respectively, to prevent the gas mixing core (3) or the exhaust gas mixing core (7) from rotating inside the mixer body (6).
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| CN201922090433.1U CN211116313U (en) | 2019-11-28 | 2019-11-28 | Novel mixer |
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| CN201922090433.1U CN211116313U (en) | 2019-11-28 | 2019-11-28 | Novel mixer |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112065613A (en) * | 2020-08-12 | 2020-12-11 | 潍柴动力股份有限公司 | Bath heat mixer and heating method thereof |
| CN112282976A (en) * | 2020-10-29 | 2021-01-29 | 东风商用车有限公司 | Turbulent flow type mixer for natural gas engine |
| CN113040719A (en) * | 2021-03-24 | 2021-06-29 | 新疆维吾尔自治区人民医院 | Old person nurses alarm system based on thing networking |
| CN113062817A (en) * | 2021-04-20 | 2021-07-02 | 潍柴动力股份有限公司 | Multi-channel gas mixer |
| CN113357058A (en) * | 2021-05-31 | 2021-09-07 | 东风商用车有限公司 | Central flow guide type venturi integrated mixer |
| CN113417775A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Turbulent flow type venturi mixer |
| CN113417773A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Wall surface flow guide type venturi integrated mixer |
| CN113417769A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Turbulent flow type venturi integrated mixer |
| CN113417768A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Central flow guiding type Venturi mixer |
| CN113417770A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Wall surface flow guiding type Venturi mixer |
| CN113944575A (en) * | 2021-12-20 | 2022-01-18 | 潍柴动力股份有限公司 | Mixer |
| CN115217688A (en) * | 2021-04-15 | 2022-10-21 | 康明斯公司 | Air intake system for natural gas engine |
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| WO2022032974A1 (en) * | 2020-08-12 | 2022-02-17 | 潍柴动力股份有限公司 | Bath heating mixer and heating method thereof |
| CN112065613A (en) * | 2020-08-12 | 2020-12-11 | 潍柴动力股份有限公司 | Bath heat mixer and heating method thereof |
| CN112282976A (en) * | 2020-10-29 | 2021-01-29 | 东风商用车有限公司 | Turbulent flow type mixer for natural gas engine |
| CN112282976B (en) * | 2020-10-29 | 2022-03-29 | 东风商用车有限公司 | Turbulent flow type mixer for natural gas engine |
| CN113040719A (en) * | 2021-03-24 | 2021-06-29 | 新疆维吾尔自治区人民医院 | Old person nurses alarm system based on thing networking |
| US11821390B2 (en) | 2021-04-15 | 2023-11-21 | Cummins Inc. | Intake system for natural gas engine |
| CN115217688A (en) * | 2021-04-15 | 2022-10-21 | 康明斯公司 | Air intake system for natural gas engine |
| CN113062817A (en) * | 2021-04-20 | 2021-07-02 | 潍柴动力股份有限公司 | Multi-channel gas mixer |
| CN113357058A (en) * | 2021-05-31 | 2021-09-07 | 东风商用车有限公司 | Central flow guide type venturi integrated mixer |
| CN113417770A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Wall surface flow guiding type Venturi mixer |
| CN113417768A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Central flow guiding type Venturi mixer |
| CN113417769A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Turbulent flow type venturi integrated mixer |
| CN113417773A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Wall surface flow guide type venturi integrated mixer |
| CN113417775A (en) * | 2021-05-31 | 2021-09-21 | 东风商用车有限公司 | Turbulent flow type venturi mixer |
| CN113944575A (en) * | 2021-12-20 | 2022-01-18 | 潍柴动力股份有限公司 | Mixer |
| CN113944575B (en) * | 2021-12-20 | 2022-07-19 | 潍柴动力股份有限公司 | Mixer |
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