CN104763517A - Intercooler - Google Patents
Intercooler Download PDFInfo
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- CN104763517A CN104763517A CN201510138247.4A CN201510138247A CN104763517A CN 104763517 A CN104763517 A CN 104763517A CN 201510138247 A CN201510138247 A CN 201510138247A CN 104763517 A CN104763517 A CN 104763517A
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- intercooler
- outlet
- inlet
- guide vane
- guide vanes
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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 invention discloses an intercooler. The intercooler comprises an intercooler shell, wherein the intercooler shell has an inlet pipe section, an inlet air collecting cavity section, a core body section, an outlet air collecting cavity section and an outlet pipe section which are connected in turn; an intercooler core body, wherein the intercooler core body is installed in the core body section, and the intercooler core body has a cold medium channel and a thermal medium channel; and an outlet guide vane, wherein the outlet guide vane is installed in the outlet air collecting cavity section so as to guide the gas medium flowed from the thermal medium channel. According to the intercooler, the outlet guide vane is installed in the outlet air collecting cavity section so as to guide the gas medium flowed from the thermal medium channel, the effect of the outlet gas flow distortion of the intercooler for the performance of the next level of the gas compressor can be reduced in certain degree, and the stable working range of the whole pressurization system is improved.
Description
Technical field
The present invention relates to heat exchanger and manufacture field, particularly relate to a kind of intercooler.
Background technique
The two turbocharging technology used in prior art can play reduction engine displacement to a certain extent, improves the effect of Fuel Economy.Two turbocharging technology, by increasing inter-stage intercooler between the two stage compressor of low, high-pressure series, can effectively reduce the maximum temperature of compression system.But, because the reducing of circulation area of intercooler outlet air collecting chamber section causes exit flow field to produce serious axial velocity distortion, and blade tip low speeds flow district makes tip segment attack angle of blade increase, flowing potential energy reduces, thus more easily produce flow separation and stall, the performance of the high pressure stage gas compressor be connected with intercooler outlet is reduced, and the scope of stable operation reduces.
Summary of the invention
The present invention is intended to solve one of above-mentioned technical problem of the prior art at least to a certain extent.
For this reason, one object of the present invention is to propose intercooler, be provided with outlet guide vanes in described intercooler after improvement, the impact of intercooler outlet flow distortion on next stage Capability of Compressor can be reduced at least to a certain extent, improve the stable operation range of whole pressurization system.
According to the intercooler of the embodiment of the present invention, it comprises: intercooler housing, and described intercooler housing has the import pipeline section, inlet header air cavity section, core segment, outlet air collecting chamber section and the outlet pipe section that are connected in turn; Intercooler chip body, described intercooler chip body is arranged in described core segment, and described intercooler chip body has cold medium channel and hot media channel; And outlet guide vanes, described outlet guide vanes is arranged in described outlet air collecting chamber section to carry out water conservancy diversion to from effluent air medium in described hot media channel.
According to the intercooler of the embodiment of the present invention, by arranging outlet guide vanes to carry out water conservancy diversion to from effluent air medium in hot media channel in outlet air collecting chamber section, the impact of intercooler outlet gas flowfield distortion on the performance of next stage gas compressor can be reduced to a certain extent, improve the stable operation range of whole pressurization system.
According to some embodiments of the present invention, the outlet guide vanes leading edge of described outlet guide vanes is parallel with the length direction of described hot media channel; The outlet guide vanes trailing edge of described outlet guide vanes and the centerline axis parallel of described outlet pipe section.
According to some embodiments of the present invention, seamlessly transitted by outlet guide vanes changeover portion between described outlet guide vanes leading edge and described outlet guide vanes trailing edge.
According to some embodiments of the present invention, described outlet guide vanes is that multiple and about described outlet pipe section central axis is arranged symmetrically with, and described outlet air collecting chamber intersegmental part is isolated into multiple outlet guide circulation road by described multiple outlet guide vanes.Thus, the thermal medium flowed out from hot media channel can flow into multiple different outlet guide circulation road respectively, and then flow into outlet pipe section by the guide functions of outlet guide circulation road.
According to some embodiments of the present invention, each inlet-duct area of described outlet guide circulation road is K1 with the ratio of the import gross area, and discharge area is K2 with the ratio of the outlet gross area, wherein K1 and K2 meets relation: K1=K2, thus is convenient to thermal medium equably from each outlet guide circulation road water conservancy diversion to outlet pipe section.
The intercooler of embodiment according to a further aspect of the invention, also comprises: inlet guide vane, and described inlet guide vane is arranged in described inlet header air cavity section to carry out water conservancy diversion to the gas medium flowed into from described import pipeline section.
According to other embodiments of the present invention, the inlet guide vane leading edge of described inlet guide vane and the centerline axis parallel of described import pipeline section; The inlet guide vane trailing edge of described inlet guide vane is parallel with the length direction of described hot media channel.
According to other embodiments of the present invention, seamlessly transitted by inlet guide vane changeover portion between described inlet guide vane leading edge and described inlet guide vane trailing edge.
According to other embodiments of the present invention, described inlet guide vane is that multiple and about described import pipeline section central axis is arranged symmetrically with, and described inlet header air cavity intersegmental part is isolated into multiple inlet guide circulation road by described multiple inlet guide vane.
According to other embodiments of the present invention, each inlet-duct area of described inlet guide circulation road is K3 with the ratio of the import gross area, and discharge area is K4 with the ratio of the outlet gross area, and wherein K3 and K4 meets relation: K3=K4.
The intercooler of embodiment according to a further aspect of the invention, by arranging inlet guide vane, can make the thermal medium that flows out from import pipeline section equably water conservancy diversion in intercooler chip body, ensure the thermal medium uniform distribution in intercooler chip body, thus improve the cooling effectiveness of intercooler.
Additional aspect of the present invention and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present invention.
Accompanying drawing explanation
Above-mentioned and/or additional aspect of the present invention and advantage will become obvious and easy understand from accompanying drawing below combining to the description of embodiment, wherein:
Fig. 1 is the schematic diagram of the intercooler according to the embodiment of the present invention;
Fig. 2 is the schematic diagram of the intercooler of embodiment according to a further aspect of the invention.
Reference character:
Intercooler 100;
Intercooler housing 1; Import pipeline section 11; Inlet header air cavity section 12; Core segment 13; Hot media channel 131; Cold medium channel 132; Outlet air collecting chamber section 14; Outlet pipe section 15;
Outlet guide vanes 2; Outlet guide vanes leading edge 21; Outlet guide vanes trailing edge 22; Outlet guide vanes changeover portion 23;
Inlet guide vane 3; Inlet guide vane leading edge 31; Inlet guide vane trailing edge 32; Inlet guide vane changeover portion 33;
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.
In describing the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", orientation or the position relationship of the instruction such as " counterclockwise " are based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore limitation of the present invention can not be interpreted as.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristics.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise one or more these features.In describing the invention, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrically connected maybe can communicate with one another; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score can comprise the first and second features and directly contact, also can comprise the first and second features and not be directly contact but by the other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above " comprise fisrt feature directly over second feature and oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " comprise fisrt feature immediately below second feature and tiltedly below, or only represent that fisrt feature level height is less than second feature.
Describe the intercooler 100 according to the embodiment of the present invention referring to Fig. 1-Fig. 2, this intercooler 100 may be used for cooling by the pressurized air after turbocharger compresses, reduces Engine Inlet Temperature.
Fig. 1 is the schematic diagram of intercooler 100 according to an embodiment of the invention.As shown in Figure 1, intercooler housing 1, intercooler chip body 13 and outlet guide vanes 2 can be comprised according to the intercooler 100 of the embodiment of the present invention.Intercooler housing 1 can have the import pipeline section 11, inlet header air cavity section 12, core segment 13, outlet air collecting chamber section 14 and the outlet pipe section 15 that are connected in turn.As shown in Figure 1-2, import pipeline section 11 and outlet pipe section 15 and inlet header air cavity section 12 and outlet air collecting chamber section 14 are arranged on the both sides of core segment 13 respectively symmetrically.
According to one embodiment of present invention, intercooler chip body 13 is arranged in core segment 13.Alternatively, the intercooler chip body 13 be arranged in core segment 13 can be set to plate-fin heat exchanger.As Figure 1-Figure 2, there is cold medium channel 132 and hot media channel 131 in intercooler chip body 13.Cold medium channel 132 may be used for flowing cooling medium with heat of cooling medium.Alternatively, cooling medium can be cool air or cooling water, but does not limit so.And hot media channel 131 can be compressed-air actuated circulation passage.
Preferably, cold medium channel 132 and hot media channel 131 are alternately arranged.Cold medium channel 132 and being alternately arranged of hot media channel 131 can improve the cooling effectiveness of cooling medium to the thermal medium in hot media channel 131 to a great extent.
As optional mode of execution, outlet guide vanes 2 can be arranged in outlet air collecting chamber section 14 to carry out water conservancy diversion to from effluent air medium in hot media channel 131.As Figure 1-Figure 2, exporting air collecting chamber chamber section 14 is set to cone-shaped.Because the gas flow area of pyramidal outlet air collecting chamber section 14 reduces gradually, by arranging the flow distortion that outlet guide vanes 2 can reduce intercooler 100 outlet to a great extent in outlet air collecting chamber section 14, thus can to avoid because of flow distortion, on the impact that the performance of next stage gas compressor produces, improve the stable operation range of whole pressurization system.
According to the intercooler 100 of the embodiment of the present invention, by arranging outlet guide vanes 2 to carry out water conservancy diversion to from effluent air medium in hot media channel 131 in outlet air collecting chamber section 14, the flow distortion of intercooler 100 exit gas can be reduced to a certain extent on the impact of next stage Capability of Compressor, improve the stable operation range of whole pressurization system.
According to one embodiment of present invention, outlet guide vanes 2 comprises outlet guide vanes leading edge 21, outlet guide vanes trailing edge 22 and outlet guide vanes changeover portion 23.Outlet guide vanes leading edge 21 is positioned at the suction port place of outlet air collecting chamber section 14, and outlet guide vanes trailing edge 22 is positioned at the air outlet place of outlet air collecting chamber section 14.
According to one embodiment of present invention, preferably, the outlet guide vanes leading edge 21 of outlet guide vanes 2 is parallel with the length direction of hot media channel 131.In other words, the setting direction of outlet guide vanes leading edge 21 is identical with the flow direction of thermal medium in intercooler chip body 13, thus the flow separation that can reduce when thermal medium flows out in hot media channel 131 and flow losses.
Further preferably, as shown in Fig. 1-Fig. 2, the outlet guide vanes trailing edge 22 of outlet guide vanes 2 and the central axis O of outlet pipe section 15
1o
2parallel.That is, the setting direction of outlet guide vanes trailing edge 22 is identical with the circulating direction of thermal medium in outlet pipe section 15.
A step preferably again, can be seamlessly transitted by outlet guide vanes changeover portion 23 between outlet guide vanes leading edge 21 and outlet guide vanes trailing edge 22, thus can so that outlet guide vanes 2 by the thermal medium water conservancy diversion that flows out in hot media channel 131 to outlet pipe section 15, this reduces thermal medium to a certain extent from the flow separation in hot media channel 131 during outflow and flow losses, avoid the flow distortion of intercooler 100 exit gas to the impact of next stage Capability of Compressor, improve the stable operation range of whole pressurization system.
Certainly, the above-mentioned vibrational power flow about outlet guide vanes 2 only tool is schematic, can not be interpreted as one restriction of the present invention.
According to one embodiment of present invention, outlet guide vanes 2 is multiple.Such as, the quantity of outlet guide vanes 2 can arrange 2-8.Preferably, the quantity of outlet guide vanes 2 is 3-6.Further preferably, the quantity of outlet guide vanes 2 is 4.
According to one embodiment of present invention, multiple outlet guide vanes 2 is about the central axis O of outlet pipe section 15
1o
2be arranged symmetrically with, and outlet air collecting chamber section 14 internal insulation is become multiple outlet guide circulation road by multiple outlet guide vanes 2.Thus, the thermal medium flowed out from hot media channel 131 can flow into multiple different outlet guide circulation road respectively, and then flow into outlet pipe section 15 by the guide functions of outlet guide circulation road.
Alternatively, about the central axis O of outlet pipe section 15
1o
2symmetrically arranged multiple outlet guide vanes 2 is evenly distributed in outlet air collecting chamber section 14.Further alternatively, the inlet-duct area of each outlet guide circulation road and the ratio of the import gross area can be set to K1, discharge area is set to K2 with the ratio of the outlet gross area, and wherein K1 and K2 meets relation: K1=K2.In other words, the inlet-duct area of each outlet guide circulation road compares with discharge area than equal, thus is convenient to thermal medium equably from each outlet guide circulation road water conservancy diversion in outlet pipe section 15.
The intercooler 100 of embodiment, also comprises inlet guide vane 3 according to a further aspect of the invention.Inlet guide vane 3 is arranged in inlet header air cavity section 12 to carry out water conservancy diversion to the gas medium flowed into from import pipeline section 11.By arranging inlet guide vane 3, the uniform distribution of thermal medium in intercooler chip body 13 can be ensured, thus the cooling effectiveness of intercooler 100 can be improved to a certain extent.
Embodiment according to a further aspect of the invention, inlet guide vane 3 comprises inlet guide vane leading edge 31, inlet guide vane trailing edge 32 and inlet guide vane changeover portion 33.Inlet guide vane leading edge 31 is positioned at the suction port place of inlet header air cavity section 12, and inlet guide vane trailing edge 32 is positioned at the air outlet place of inlet header air cavity section 12.
Embodiment according to a further aspect of the invention, alternatively, the inlet guide vane leading edge 31 of inlet guide vane 3 and the central axis O of import pipeline section 11
1o
2parallel.Namely inlet guide vane leading edge 31 is identical with the circulating direction of thermal medium in import pipeline section 11.
Further alternatively, the inlet guide vane trailing edge 32 of inlet guide vane 3 is parallel with the length direction of hot media channel 131.In other words, the setting direction of inlet guide vane trailing edge 32 is identical with the flow direction of thermal medium in hot media channel.A step alternatively again, seamlessly transitted between inlet guide vane leading edge 31 and inlet guide vane trailing edge 32 by inlet guide vane changeover portion 33.
Embodiment according to a further aspect of the invention, inlet guide vane 3 is multiple, and inlet header air cavity section 12 internal insulation is become multiple inlet guide circulation road by multiple inlet guide vane 3.Alternatively, the magnitude setting of inlet guide vane 3 can identical with outlet guide vanes 2, can certainly be different.
Embodiment according to a further aspect of the invention, multiple inlet guide vane 3 is arranged symmetrically with about the central axis of import pipeline section 11.Alternatively, the multiple inlet guide vane 3 be arranged symmetrically with can be evenly distributed in inlet header air cavity section 12.Further alternatively, the inlet-duct area of each inlet guide circulation road and the ratio of the import gross area can be set to K3, and discharge area is set to K4 with the ratio of the outlet gross area, wherein K3 and K4 meets relation: K3=K4.Thus, can make the thermal medium that flows out from import pipeline section 11 equably water conservancy diversion in intercooler chip body 13, ensure the thermal medium uniform distribution in intercooler chip body 13, thus the cooling effectiveness of intercooler 100 can be improved.
The intercooler 100 of embodiment according to a further aspect of the invention, by arranging inlet guide vane 3, can make the thermal medium that flows out from import pipeline section 11 equably water conservancy diversion in intercooler chip body 13, ensure the thermal medium uniform distribution in intercooler core 13 body, thus improve the cooling effectiveness of intercooler 100.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.In addition, the different embodiment described in this specification or example can carry out engaging and combining by those skilled in the art.
Although illustrate and describe embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, revises, replace and modification.
Claims (10)
1. an intercooler, is characterized in that, intercooler comprises:
Intercooler housing, described intercooler housing has the import pipeline section, inlet header air cavity section, core segment, outlet air collecting chamber section and the outlet pipe section that are connected in turn;
Intercooler chip body, described intercooler chip body is arranged in described core segment, and described intercooler chip body has cold medium channel and hot media channel; And
Outlet guide vanes, described outlet guide vanes is arranged in described outlet air collecting chamber section to carry out water conservancy diversion to from effluent air medium in described hot media channel.
2. intercooler according to claim 1, is characterized in that, the outlet guide vanes leading edge of described outlet guide vanes is parallel with the length direction of described hot media channel; The outlet guide vanes trailing edge of described outlet guide vanes and the centerline axis parallel of described outlet pipe section.
3. intercooler according to claim 2, is characterized in that, is seamlessly transitted between described outlet guide vanes leading edge and described outlet guide vanes trailing edge by outlet guide vanes changeover portion.
4. intercooler according to claim 1, it is characterized in that, described outlet guide vanes is that multiple and about described outlet pipe section central axis is arranged symmetrically with, and described outlet air collecting chamber intersegmental part is isolated into multiple outlet guide circulation road by described multiple outlet guide vanes.
5. intercooler according to claim 4, is characterized in that, each inlet-duct area of described outlet guide circulation road is K1 with the ratio of the import gross area, and discharge area is K2 with the ratio of the outlet gross area, and wherein K1 and K2 meets relation: K1=K2.
6. the intercooler according to any one of claim 1-5, is characterized in that, also comprises: inlet guide vane, and described inlet guide vane is arranged in described inlet header air cavity section to carry out water conservancy diversion to the gas medium flowed into from described import pipeline section.
7. intercooler according to claim 6, is characterized in that, the inlet guide vane leading edge of described inlet guide vane and the centerline axis parallel of described import pipeline section; The inlet guide vane trailing edge of described inlet guide vane is parallel with the length direction of described hot media channel.
8. intercooler according to claim 7, is characterized in that, is seamlessly transitted between described inlet guide vane leading edge and described inlet guide vane trailing edge by inlet guide vane changeover portion.
9. intercooler according to claim 6, it is characterized in that, described inlet guide vane is that multiple and about described import pipeline section central axis is arranged symmetrically with, and described inlet header air cavity intersegmental part is isolated into multiple inlet guide circulation road by described multiple inlet guide vane.
10. intercooler according to claim 9, is characterized in that, each inlet-duct area of described inlet guide circulation road is K3 with the ratio of the import gross area, and discharge area is K4 with the ratio of the outlet gross area, and wherein K3 and K4 meets relation: K3=K4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138247.4A CN104763517B (en) | 2015-03-26 | 2015-03-26 | Charge air cooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510138247.4A CN104763517B (en) | 2015-03-26 | 2015-03-26 | Charge air cooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104763517A true CN104763517A (en) | 2015-07-08 |
| CN104763517B CN104763517B (en) | 2017-06-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510138247.4A Active CN104763517B (en) | 2015-03-26 | 2015-03-26 | Charge air cooler |
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| Country | Link |
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| CN (1) | CN104763517B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028866A (en) * | 2021-04-13 | 2021-06-25 | 浙江银轮机械股份有限公司 | Keep out wind piece, cooling tube subassembly, intercooler core, air chamber subassembly and intercooler |
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| US4693084A (en) * | 1986-07-25 | 1987-09-15 | General Motors Corporation | Charge cooler angle duct |
| US20030111210A1 (en) * | 1999-01-20 | 2003-06-19 | Hino Motors, Ltd. | EGR cooler |
| CN102042075A (en) * | 2010-12-16 | 2011-05-04 | 浙江大学 | Vehicle intercooler based on heat medium splitting technology |
| CN103061866A (en) * | 2012-12-20 | 2013-04-24 | 华南理工大学 | Air-cooled intercooler |
| CN103322833A (en) * | 2013-06-19 | 2013-09-25 | 上海宝钢节能技术有限公司 | Heat exchanger with high heat exchange efficiency and long service life |
| CN204126719U (en) * | 2014-09-28 | 2015-01-28 | 青州飞达动力机械有限公司 | A kind of simplex pressure oil engine intercooler suction chamber and intercooler |
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2015
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4693084A (en) * | 1986-07-25 | 1987-09-15 | General Motors Corporation | Charge cooler angle duct |
| US20030111210A1 (en) * | 1999-01-20 | 2003-06-19 | Hino Motors, Ltd. | EGR cooler |
| CN102042075A (en) * | 2010-12-16 | 2011-05-04 | 浙江大学 | Vehicle intercooler based on heat medium splitting technology |
| CN103061866A (en) * | 2012-12-20 | 2013-04-24 | 华南理工大学 | Air-cooled intercooler |
| CN103322833A (en) * | 2013-06-19 | 2013-09-25 | 上海宝钢节能技术有限公司 | Heat exchanger with high heat exchange efficiency and long service life |
| CN204126719U (en) * | 2014-09-28 | 2015-01-28 | 青州飞达动力机械有限公司 | A kind of simplex pressure oil engine intercooler suction chamber and intercooler |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113028866A (en) * | 2021-04-13 | 2021-06-25 | 浙江银轮机械股份有限公司 | Keep out wind piece, cooling tube subassembly, intercooler core, air chamber subassembly and intercooler |
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| CN104763517B (en) | 2017-06-23 |
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