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公开(公告)号：JP2003201923A
公开(公告)日：2003-07-18
申请号：JP2002000494
申请日：2002-01-07
Applicant: DENSO CORP
Inventor： MAEDA AKIHIRO , HAYASHI TAKAYUKI
Abstract: PROBLEM TO BE SOLVED: To improve the boiling resistance of an EGR cooler by preventing local boiling of cooling water. SOLUTION: The measurements δin1 of a clearance 12g extending in a direction generally parallel with an inflow direction of cooling water flowing in from a cooling water inflow port 12d is made to be equal to the measurements δt of a clearance 11a between exhaust tubes 11. Concretely, the measurements δin1 is made to be between 1 mm and 5 mm. Therefore, the flow velocity of the cooling water flowing in the clearance 12g can be prevented from decreasing below a specified flow velocity, so that the cooling water can be prevented from locally boiling in the clearance 12g. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003145290A
公开(公告)日：2003-05-20
申请号：JP2001344290
申请日：2001-11-09
Applicant: SUMITOMO SPEC METALS , DENSO CORP
Inventor： HASEGAWA TAKESHI , ISHIO MASAAKI , KAJIKAWA SHUNJI , SAKAMOTO ZENJI , MAEDA AKIHIRO
Abstract: PROBLEM TO BE SOLVED: To provide a material for brazing in which the corrosion resistance and the oxidization resistance of a brazing filler metal part with which joined members are brazed are improved and to provide a brazing structure which is suitable for the flow passage structure of a heat exchanger. SOLUTION: The structure is provided with a base plate 11 which is formed by a stainless steel member 11, a Fe-atom-diffusion-suppressing layer 12 which is formed by a Ni-Cr alloy which consists essentially of Ni and includes 10 to 30 mass % Cr, and further provided with, when necessary, a brazing filler metal layer 13 which is formed by a Cu-based brazing filler metal formed as a lamination on the Fe-atom-diffusion-suppressing layer 12. The diffusion of Fe atoms in the base plate into the brazing filler metal which is melted during a brazing process is suppressed by the Fe-atom-diffusion-suppressing layer, and a proper amounts of Ni and Cr are diffused into the brazing filler metal part, thus the excellent corrosion resistance and the oxidization resistance are given to the brazing filler metal part.
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公开(公告)号：JP2001304787A
公开(公告)日：2001-10-31
申请号：JP2000241536
申请日：2000-08-09
Applicant: DENSO CORP
Inventor： UCHIMURA KATSUNORI , OKOCHI SHIGEKI , MAEDA AKIHIRO , SHIBAGAKI KAZUHIRO
Abstract: PROBLEM TO BE SOLVED: To prevent lowering of cooling capacity of an EGR cooler. SOLUTION: A guide protruding portion 120b for directing a cooling flow of water which has flowed into a cooling water passage 120 from a cooling water communicating path 120a, is provided at a diagonal portion in the passage 120, opposite to the diagonal portion wherein the path 120a is provided. Thus, the diagonal portion opposite to the diagonal portion wherein the path 120a is provided, can be prevented from becoming a dead water region (stagnant pool). Accordingly, in the diagonal portion opposite to the diagonal portion wherein the path 120a is provided, cooling water can be prevented from being boiled, thereby preventing the cooling capacity of the EGR cooler from being drastically lowered.
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公开(公告)号：JP2000236055A
公开(公告)日：2000-08-29
申请号：JP26874099
申请日：1999-09-22
Applicant: DENSO CORP
Inventor： TANAKA KOJI , TERAO MASAYOSHI , KAWAGUCHI SEIJI , OOHARA TAKAHIDE , MAEDA AKIHIRO , TANAKA EITARO
IPC: H05K7/20 , F28D15/02 , H01L23/427
Abstract: PROBLEM TO BE SOLVED: To provide a cooling device through heat release capable of preventing lowering of radiating performance by preventing radiating fins 18 from being crushed or separated. SOLUTION: The amount of a header tank 16 pushed into a coolant tank 4 is regulated, such that a distance L between a radiating tube 17a at the lowest portion, and the coolant tank 4 is set at a predetermined value based on the height of a radiating fin 18a at the lowest level. The amount of the header tank 16 pushed into the coolant tank 4 is regulated by putting the stepped surface 20 of an inside header plate 16a which constitutes the header tank 16 into contact with the top surface of the coolant tank 4. Since this prevents variations in the amount of header tank 16 pushed into the coolant tank to keep proper amount of header tank 16, radiating fins 18 interposed between the coolant tank 4 and the radiating tube 17a at the lowest portion are prevented from being crushed or separated.
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公开(公告)号：JP2000183258A
公开(公告)日：2000-06-30
申请号：JP35738198
申请日：1998-12-16
Applicant: DENSO CORP
Inventor： TANAKA KOJI , TERAO MASAYOSHI , KAWAGUCHI SEIJI , OOHARA TAKAHIDE , MAEDA AKIHIRO
IPC: H01L23/427
Abstract: PROBLEM TO BE SOLVED: To provide a boiling and cooling device on which a cooling refrigerant can be made small in size without reducing the internal volume of the cooling refrigerant. SOLUTION: A cover part 7, which constitutes a cooling refrigerant bath 4 is provided in such a manner that its outer circumference is made wider than the outside shape of a thin-type container 6, especially on the upper and the lower sides, and the enlarged upper and lower sides are used as a mounting stage 15. The stage 15 is integrally formed with the cover part 7. The mounting stage 15 is provided for fixing a printed substrate 2 via the connecting part 16 such as bolts, etc., and a round hole, to have it pass through the connecting part 16, is provided. Consequently, since it is unnecessary to provided a hole on the cooling refrigerant bath 4 to fix the printed substrate, the refrigerant bath 4 can be made small in size and its weight can be reduced, without decreasing the inside volume of the refregerant bath 4.
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Patent Agency Ranking
公开(公告)号：JP2008248853A
公开(公告)日：2008-10-16
申请号：JP2007093729
申请日：2007-03-30
Applicant: Daihatsu Motor Co Ltd , Denso Corp , Toyota Boshoku Corp , Toyota Motor Corp , ダイハツ工業株式会社 , トヨタ紡織株式会社 , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： SASANO NORIHISA , MAEDA AKIHIRO , NAKAWATASE AKIRA , KANZAKA TAKASHI , MATSUBARA YUJI , KIMURA SHINGO , ENOMOTO AKIRA , TANAKA KAZUYA
IPC: F02M35/024
CPC classification number: B01D46/10 , B01D46/0002 , B01D2279/60 , F02M35/024
Abstract: PROBLEM TO BE SOLVED: To improve ease of work in assembly of a case 3 to a cap 4, and to prevent erroneous assembly of the case 3 and the cap 4. SOLUTION: A hinge receiving surface 23 functioning as a guide when a hinge shaft part 22 disposed at a tip side of an hinge insertion part 20 of the cap 4 is inserted in a hinge engagement hole 21, is disposed to a hinge receiving part 19 disposed to a lower side of the case 3. The hinge receiving surface 23 of the case 3 is extended straightly toward a rear side in a horizontal direction of a vehicle, from the hinge engagement hole 21 less-visible from the outside of the vehicle up to a position visible from the outside of the vehicle. Since a position where a hinge shaft part 22 is put on the hinge receiving surface 23 of the case can be visually checked, the hinge shaft part 22 is easily put on the hinge receiving surface 23 in assembly of the cap 4 to the case 3. Therefore, the hinge shaft part 22 of the cap 4 is easily inserted into the hinge engagement hole 21 of the case 3. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提高将壳体3组装到盖4上的工作的便利性，并且防止壳体3和盖4的错误组装。解决方案：铰链接收表面23用作 当设置在盖4的铰链插入部20的末端侧的铰链轴部22插入铰链接合孔21中时，引导件设置在设置在壳体3的下侧的铰链接收部19。 壳体3的铰链接收表面23从车辆的外部不可见的铰链接合孔21直到从车辆的外部可见的位置在车辆的水平方向上直线地朝向后侧延伸 。 由于可以目视检查铰链轴部22放置在壳体的铰链接收面23上的位置，所以铰链轴部22容易地被盖在铰链接收面23上，从而将盖4组装到壳体3上。 因此，盖4的铰链轴部22容易地插入壳体3的铰链接合孔21中。（C）2009，JPO＆INPIT
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公开(公告)号：JP2007192529A
公开(公告)日：2007-08-02
申请号：JP2006189268
申请日：2006-07-10
Applicant: Denso Corp , 株式会社デンソー
Inventor： MAEDA AKIHIRO
CPC classification number: F01P3/18 , B60K11/00 , F01P5/06 , F01P2070/50
Abstract: PROBLEM TO BE SOLVED: To suppress the flip-flop of an extension part attached to a cooling module, wherein the extension part is extending from both longitudinal ends of a shroud to a heat exchanger.
SOLUTION: The cooling module comprises a radiator 1 for heat exchange between air and cooling water passing through the inside, a bracket 5 for fixing a condenser 2 to the radiator 1, and the shroud 4 holding a blower 3 which supplies air to the radiator 1 and arranged on the opposite side to the condenser 2 across the radiator 1 for guiding an air flow passing through the radiator 1. At the end of the shroud 4, the extension part 40 is formed which extends to the condenser 2 to seal the condenser 2 at its side and the radiator 1 at its side. The bracket 5 has a joint part 52 which extends toward the extension part 40 and to which the extension part 40 is fixed.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：为了抑制附接到冷却模块的延伸部分的触发器，其中延伸部分从护罩的两个纵向端部延伸到热交换器。 解决方案：冷却模块包括用于在通过内部的空气和冷却水之间进行热交换的散热器1，用于将冷凝器2固定到散热器1的支架5和将空气供给的鼓风机3的护罩4 散热器1并且布置在横跨散热器1的冷凝器2的相对侧上，用于引导通过散热器1的空气流。在护罩4的端部形成延伸部40，其延伸到冷凝器2以密封 冷凝器2在其侧面和散热器1在其侧面。 支架5具有朝向延伸部40延伸并且延伸部40被固定的接合部52。 版权所有（C）2007，JPO＆INPIT
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公开(公告)号：JP2003222488A
公开(公告)日：2003-08-08
申请号：JP2002025749
申请日：2002-02-01
Applicant: DENSO CORP
Inventor： MAEDA AKIHIRO
Abstract: PROBLEM TO BE SOLVED: To improve the heat transfer rate and to prevent the accumulation of PM in a gas cooler. SOLUTION: Triangular louvers 13 are mounted on flat parts 12a of an inner fin 12, and arranged in zigzag in such manner that their inclining directions are alternately changed along the waste gas flow. Raised plate parts 12b are provided with hole parts 14 on a connecting part between the flat part 12a and the raised part 12b at a position between a rear end side of the louver 13 and the louver 13 positioned at a back wash side of the louver 13. Thereby the vertical swirl generated at a back wash side of the louver 13 partially flows into an adjacent waste gas passage through the hole part 14, so that the PM accumulated on a face opposite to an opposite side of the louver 13 of an inner wall of a tube is blown out, and the heat transfer rate can be improved. COPYRIGHT: (C)2003,JPO
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公开(公告)号：JP2003106790A
公开(公告)日：2003-04-09
申请号：JP2002216040
申请日：2002-07-25
Applicant: DENSO CORP
Inventor： MAEDA AKIHIRO , HAYASHI TAKAYUKI
Abstract: PROBLEM TO BE SOLVED: To improve heat exchange performance. SOLUTION: A core plate 103 is folded to a side of bonnets 106, 107, and an inner wall surface of a tank 102 and the core plate 103 are brazed. Because the core plate 103 is folded to the side of the bonnets 106, 107, a cooling water inlet pipe 104 and a cooling water outlet pipe 105 are connected in a position close to the core plate 103. Therefore, cooling water can flow along the core plate 103, and stagnation of the cooling water can be suppressed. As a result, the heat exchange performance can be improved.
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公开(公告)号：JP2002332920A
公开(公告)日：2002-11-22
申请号：JP2001140553
申请日：2001-05-10
Applicant: DENSO CORP
Inventor： MAEDA AKIHIRO , HAYASHI TAKAYUKI
Abstract: PROBLEM TO BE SOLVED: To prevent cooling water from locally boiling at a corresponding part of a cooling water passage to the inlet side of an exhaust passage. SOLUTION: A finless range α where fins 111 are not provided is provided close to an exhaust inlet 110a. Heat exchange between EGR gas and cooling water is thus restricted close to the exhaust inlet 110a at least, and EGR gas is roughly uniformly distributed roughly along the whole range of the exhaust passage 110. Cooling water is thus prevented from locally boiling. Heat conductivity as the whole body of an EGR cooler 100 is improved, and heat exchange can be efficiently conducted in the whole body of the EGR cooler 100.
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