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1. 发明专利

JP2000274306A PISTON STRUCTURE OF ENGINE 失效
公开(公告)号：JP2000274306A
公开(公告)日：2000-10-03
申请号：JP7776199
申请日：1999-03-23
申请人： MAZDA MOTOR
发明人： HIRAMOTO KENJI , AMANO KOHEI , TAKESHIGE NOBUHIDE
IPC分类号： F01P3/10 , F02B3/06 , F02B23/06 , F02F3/22 , F02F3/26 , F16J1/00
摘要： PROBLEM TO BE SOLVED: To set the position and the form of a cooling hollow provided around a cavity, in order to improve the reliability of a cavity lip provided on the top surface of a piston. SOLUTION: A cooling hollow 30 is provided in a circular form, at the head part 12 of a piston 10, in order to surround a cavity 20 provided on the top surface 16 of the piston 10. In this case, the cooling hollow 30 is formed in an elliptical form, and its shorter diameter is fitted in the extending direction of a piston pin, and the longer diameter is fitted in the thrusting direction orthogonal to the pin direction. In the pin direction, the wall thickness L between the cooling hollow 30 and the outer peripheral surface of the piston 10 is made thicker and the rigidity is made larger, and the deformation of a lip part 22 by an explosion stress to be an outer stress is suppressed. The wall thickness L is made thinner in the thrusting direction, and the rigidity is reduced, and the deformation of the lip part 22 by a thermal stress to be an inner stress is also suppressed.

2. 发明专利

JPH09164445A MANUFACTURE OF AUTOMOBILE SIDE PANEL OUTER INTEGRATEDLY FORMED OF ALUMINUM ALLOY PLATE 失效
公开(公告)号：JPH09164445A
公开(公告)日：1997-06-24
申请号：JP32848595
申请日：1995-12-18
申请人： NIPPON STEEL CORP , MAZDA MOTOR , SKY ALUMINIUM
发明人： AMANO KOHEI , ISHIDA YASUAKI , AMAIKE TATSUO , HASHIMOTO KOJI , ABE YUJI
IPC分类号： B62D65/00 , B21D37/16 , B21D53/86 , B21D53/88 , B30B15/34 , B62D25/02 , C22C21/06
摘要： PROBLEM TO BE SOLVED: To manufacture an integratedly formed side panel outer for an automobile with high degree of difficulty in forming by pressing an Al alloy sheet of the prescribed composition by dies with the prescribed temperature distribution on a part of or on the whole of the dies. SOLUTION: In a manufacturing method of a side panel outer for an automobile in which a rear fender part and a part around a door opening part of the automobile are integrated, the temperature of dies for a projected part of a punch to form the rear fender part and a projected part around the door opening part is >=80 deg.C to =220 deg.C to =220 deg.C to press an Al alloy sheet. The Al alloy sheet has the composition consisting of, by weight, >=0.5% to

3. 发明专利

JPH07124755A ELECTRIC RESISTANCE WELDING METHOD FOR DIFFERENT KINDS OF MATERIALS 失效
公开(公告)号：JPH07124755A
公开(公告)日：1995-05-16
申请号：JP29249093
申请日：1993-10-29
申请人： MAZDA MOTOR
发明人： NISHIGUCHI KATSUYA , MIWA YOSHIHISA , ISHIDA YASUAKI , SHINAGAWA HIROSHI , AMANO KOHEI
IPC分类号： B23K11/20 , B23K11/11
摘要： PURPOSE:To suppress the total amount of power consumption, to suppress heat generation of an electrode and to improve durability of the electrode in the welding method to join two different kinds of materials having different electric conductivity and heat conductivity with clad material interposed in between. CONSTITUTION:A second material side 11B (cold rolled steel sheet) of reinforcement 11 having low electric conductivity and heat conductivity and a side sill inner 12 (cold rolled steel sheet) are first joined together by resistance welding. Afterward, a first material side 11A (1000 system aluminum material) of the reinforcement 11 joined to the side inner 12 having higher electric conductivity and heat conductivity than the second material 11B (cold rolled steel sheet) and the side sill inner 12 (cold rolled steel sheet) and a side sill outer 100 (5000 system aluminum material) are joined together by resistance welding.

4. 发明专利

JP2004324597A Breaking prediction method and breaking prediction system for engine parts, and its control program 有权
公开(公告)号：JP2004324597A
公开(公告)日：2004-11-18
申请号：JP2003123151
申请日：2003-04-28
申请人： Mazda Motor Corp , マツダ株式会社
发明人： AMANO KOHEI , HIRAMOTO KENJI , TAKESHIGE NOBUHIDE
IPC分类号： G01M15/04 , F02D45/00 , G01M15/00
摘要： PROBLEM TO BE SOLVED: To accurately predict the life of engine parts until resulting in breakage by three breaking factors of low cycle fatigue, creep and high cycle fatigue without constructing a large-scale database requiring immense man-hours. SOLUTION: The life of engine parts when each breaking factor is independently applied is obtained by an experiment and set to databases DB11-13. When predicting a composite fatigue life by three breaking factors, time series simulation data of thermal load and vibration applied to the engine parts when operating an engine is obtained by an FEM analysis, and based on this data and the life data of the databases DB11-13, the amount of damage by each breaking factor of low cycle fatigue, creep and high cycle fatigue is obtained. The amount of creep fatigue damage is computed considering the influence of stress relaxation by interaction. The amount of high cycle fatigue damage is computed considering the influence of damage caused by vibration of a fatigue limit or less. Breaking is determined when the total of the damage amounts by three breaking factors becomes a prescribed value. COPYRIGHT: (C)2005,JPO&NCIPI

5. 发明专利

JPH07117727A AUTOMOTIVE BODY STRUCTURE 失效
公开(公告)号：JPH07117727A
公开(公告)日：1995-05-09
申请号：JP28622193
申请日：1993-10-22
申请人： MAZDA MOTOR
发明人： NISHIGUCHI KATSUYA , MIWA YOSHIHISA , ISHIDA YASUAKI , SHINAGAWA HIROSHI , AMANO KOHEI
IPC分类号： B62D25/20
摘要： PURPOSE:To provide an automotive body structure which is able to surely prevent any electrolytic corrosion in a closed section part from occurring at the time when the lightenization of a car body is promoted with materials different in potential difference. CONSTITUTION:Reinforcement 11 is made up of a cladding material consisting of steel and aluminum, a steel side of this reinforcement 11 is directed to a side sill inner 12 (made of steel), and an aluminum side to a side sill outer 100 (made of aluminum), respectively, then an upper flange 112 of the reinforcement 11 is interposed between an inner side of the side sill outer 100 and another upper flange 122 of the side sill inner 12 and joined together by means of resistance welding. In addition, a lower flange 111 of the reinforcement 11 is interposed between a lower flange 101 of the side sill outer 100 and a lower flange 121 of the side sill inner 12, and end of a lower panel 13 (nude of a sheet steel) is superposed on an inner side of this lower flange 121 and joined together by means of the resistance welding.

6. 发明专利

JPH07116747A MANUFACTURE OF WELDED PRODUCT 失效
公开(公告)号：JPH07116747A
公开(公告)日：1995-05-09
申请号：JP28622093
申请日：1993-10-22
申请人： MAZDA MOTOR
发明人： ISHIDA YASUAKI , MIWA YOSHIHISA , SHINAGAWA HIROSHI , NISHIGUCHI KATSUYA , AMANO KOHEI
IPC分类号： B21D22/26 , B21D22/02 , B21D22/20 , B21D53/86 , B21D53/88 , B23K11/00
摘要： PURPOSE:To provide a manufacturing method of a welded product where the formability of the stock with small press formability is improved, the weldability is bettered and the strength of the welded product can be increased. CONSTITUTION:A side sill outer 301 is pressed at the lower end of a side frame outer 30, and in the side sill outer 301, one member 1a and a first panel member 2 are arranged outside a vehicle body, and the other member 1b is arranged inside the vehicle body. An upper flange 331 and a lower flange 332 of a side sill inner 33 which are formed of the same kind material (steel sheet) as the other member 1b are welded to the other member 1b to form the closed section of the side sill, and an end part flange 341 of a floor panel 34 formed of the same kind material (steel sheet) as the other member 1b is joined to the lower flange 332 of the side sill inner 33 on the side opposite to the other member 1b.

7. 发明专利

JPH07267139A AUTOMOTIVE BODY STRUCTURE 失效
公开(公告)号：JPH07267139A
公开(公告)日：1995-10-17
申请号：JP5872094
申请日：1994-03-29
申请人： MAZDA MOTOR
发明人： ISHIDA YASUAKI , SHINAGAWA HIROSHI , AMANO KOHEI , MIWA YOSHIHISA
IPC分类号： B62D29/00 , B62D25/04
摘要： PURPOSE:To reduce the weight, improve the rigidity and reduce the material cost compared with monocoque structure by the prior art. CONSTITUTION:The automotive body structure is formed in such a manner that at least one of inner and outer frames 2a and 2b is formed of a cast material and intersection parts in a closed section are formed by interjoining the inner and outer frames 2a and 2b. In the intersection part of at least one of the inner and outer frames 2a and 2b, a rib 13 is extended from one frame to the other frame side and the close section is almost closed by means of a rib 13.

8. 发明专利

JPH06277766A PRESS FORMING METHOD 失效
公开(公告)号：JPH06277766A
公开(公告)日：1994-10-04
申请号：JP7410593
申请日：1993-03-31
申请人： NIPPON STEEL CORP , SKY ALUMINIUM , MAZDA MOTOR
发明人： KATAYAMA TOMOHISA , ABE YUJI , AMANO KOHEI , ISHIDA YASUAKI
IPC分类号： B21D22/20 , B30B15/00 , B30B15/34
摘要： PURPOSE:To eliminate the fear of the corrosion by removing with drying the water content from the liquid lubricant before press forming, and eliminating the alkali property caused by the hydrolysis of a soap by removing with cleaning the soap component after press forming, and to increase the pressing velocity by lowering the lubricant viscosity at the time of warm forming. CONSTITUTION:After a work is coated with the liquid lubricant prepared by mixing the lubricative particulates and a soap in a lubricant coating process 1, the water content is removed from the liquid lubricant in a drying process 2, the work whose water content is removed is formed with pressing preferably in a warm range in a forming process 3, the formings are finally cleaned in a cleaning process 4 and at least the soap component is removed from the surface. Accordingly, the lubricative property is not reduced at the time of forming because the lubricative particulates is strongly adsorbed on the work and not easily removed due to the surface activity function of the soap, and the formability is improved.

9. 发明专利

JP2010023537A Vehicle body structure 审中-公开
标题翻译：车身结构
公开(公告)号：JP2010023537A
公开(公告)日：2010-02-04
申请号：JP2008183579
申请日：2008-07-15
申请人： Mazda Motor Corp , マツダ株式会社
发明人： KODAIRA TAKEHISA , AMANO KOHEI , NAGAO KUNIAKI , YOSHIMURA TAKASHI , SASAKI SHIN
IPC分类号： B62D25/20
摘要： PROBLEM TO BE SOLVED: To provide a vehicle body structure capable of protecting an occupant from being injured by a toe board moving backward to narrow a foot space of the occupant in a vehicle interior.
SOLUTION: The vehicle body structure includes: a floor panel 12; the toe board 8 extending obliquely upward from a front end of the front panel; a dash panel 6; and a floor tunnel 22 connected to the toe board and extending rearwardly in an anteroposterior direction of the vehicle body on the front panel. The floor tunnel is connected to the toe board so as to be continued to the toe board. The connected part of the floor tunnel and the toe board includes a bent part 24 which is bent into a dogleg shape in a side view. A reinforcement member 30 having one end joined to the toe board ahead the bent part and the other end joined to a side part below the floor tunnel behind the bent part is in the vicinity of the bent part.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种车身结构，能够保护乘员免受脚趾板向后移动而使乘客的脚部空间变窄的车辆内部。解决方案：车体结构包括：地板镶板12; 趾板8从前面板的前端向斜上方延伸; 一个仪表板6; 以及连接到脚趾板并且在前面板上在车体的前后方向向后延伸的地板通道22。地板隧道连接到脚趾板，以便继续到脚趾板。地板隧道和脚趾板的连接部分包括在侧视图中弯曲成弯曲形状的弯曲部分24。一个加强构件30的一端在弯曲部分之前连接到趾板，另一端与弯曲部分后面的地板通道下方的侧部接合，在弯曲部分附近。版权所有（C）2010，JPO＆INPIT

10. 发明专利

JP2007247511A Exhaust gas passage structure for internal combustion engine 审中-公开
标题翻译：用于内燃机的排气通气结构
公开(公告)号：JP2007247511A
公开(公告)日：2007-09-27
申请号：JP2006071217
申请日：2006-03-15
申请人： Mazda Motor Corp , マツダ株式会社
发明人： HIRAMOTO KENJI , AMANO KOHEI , YOSHIMURA TAKASHI , YAMANAKA TSUNESUKE , NOOI YOSHIHISA , YANO YASUHIDE
IPC分类号： F01N13/08
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas passage structure for an internal combustion engine capable of inhibiting drop of temperature at the time of low exhaust gas temperature and dropping temperature at the time of high exhaust gas temperature.
SOLUTION: This exhaust gas passage structure for the internal combustion engine provided with an exhaust pipe in which exhaust gas in a combustion chamber flows down includes a main exhaust gas passage E1 formed in the exhaust pipe and having exhaust gas flow therein, a projection part 28 projecting inward from an inner wall part of the main exhaust gas passage to disturb part of flow of exhaust gas in the main exhaust gas passage, a first communication part 24 formed in an outer circumference side of the main exhaust gas passage and formed in a predetermined distance in a downstream side of the projection part, and an auxiliary exhaust gas passage E2 formed in a more upstream side of the first communication part and communicating to the main exhaust gas passage via a second communication part 26.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够抑制废气温度低的时候的排气温度下降的内燃机的废气通道结构和废气温度高的下降温度。解决方案：该内燃机的废气通道结构具有排气管，其中燃烧室内的废气流下，包括形成在排气管中并具有排气流的主排气通道E1，突出部28从主排气通路的内壁部向内突出，以扰乱主排气通路内的排气流的一部分，形成在主排气通路的外周侧的第一连通部24，在突出部分的下游侧具有预定距离，以及形成在第一连通部分的更上游侧并经由第二连通部分26连通至主排气通道的辅助排气通道E2。（C）2007，JPO＆INPIT

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