公开(公告)号：US07431781B2

公开(公告)日：2008-10-07

申请号：US11227661

申请日：2005-09-15

申请人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

发明人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

IPC分类号： C21D8/10

CPC分类号： F02M55/025 ,  F02M55/004

摘要： A common-rail injection system is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can be made thin and light in weight. A main pipe rail is manufactured by transformation induced plastic type strength steel. After the main pipe rail is processed, residual austenite is generated by heat treatment, and the reduction processing of stress concentration of a branch hole and a main pipe rail side flow passage crossing portion is performed. Further, it is preferable that an induced plastic transformation is generated on the inner surface of the main pipe rail by autofrettage processing, and compression residual stress is left.

摘要翻译： 本发明提供一种用于柴油发动机的共轨喷射系统，具有优异的内压疲劳抗力特性，抗振性，耐气孔性，耐断层性等优点，能够轻量化。 主导轨由转变诱导塑料型强度钢制成。 在处理主管轨之后，通过热处理产生残余奥氏体，并且执行分支孔和主管轨侧流动通道交叉部分的应力集中的还原处理。 此外，优选通过自动补焊处理在主管轨的内表面上产生诱导塑性变形，并且留下压缩残余应力。

公开(公告)号：US20060005599A1

公开(公告)日：2006-01-12

申请号：US11227661

申请日：2005-09-15

申请人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

发明人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

IPC分类号： B21D3/00

CPC分类号： F02M55/025 ,  F02M55/004

摘要： A common-rail injection system is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can be made thin and light in weight. A main pipe rail is manufactured by transformation induced plastic type strength steel. After the main pipe rail is processed, residual austenite is generated by heat treatment, and the reduction processing of stress concentration of a branch hole and a main pipe rail side flow passage crossing portion is performed. Further, it is preferable that an induced plastic transformation is generated on the inner surface of the main pipe rail by autofrettage processing, and compression residual stress is left.

公开(公告)号：US20050005913A1

公开(公告)日：2005-01-13

申请号：US10616841

申请日：2003-07-10

申请人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

发明人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

IPC分类号： F02M55/02

CPC分类号： F02M55/02 ,  F02M2200/8046 ,  F02M2200/8053 ,  F02M2200/9053 ,  F02M2200/9061 ,  Y10T29/49432

摘要： A high pressure fuel injection pipe is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can be made thin and light in weight. In the high pressure fuel injection pipe, pipe extension and heat treatment are repeated by using a header manufactured by transformation induced plastic type strength steel, and processing for depositing residual austenite is then performed and final pipe extension processing is performed, and a joint portion is molded and bending processing is performed without performing perfect annealing at the size of a product.

摘要翻译： 本发明提供一种用于柴油发动机的高压燃油喷射管，具有优异的内压耐疲劳特性，抗振动疲劳特性和抗空气阻力特性以及板面抗瑕疵性能，并且可以使其重量轻且重量轻。 在高压燃料喷射管中，通过使用由变形诱导塑料型强度钢制成的集管来重复管延伸和热处理，然后进行用于沉积残余奥氏体的处理，并执行最终的延伸处理，并且接合部分 在不对产品尺寸进行完全退火的情况下进行模制和弯曲加工。

公开(公告)号：US20050005910A1

公开(公告)日：2005-01-13

申请号：US10616571

申请日：2003-07-10

申请人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

发明人： Masayoshi Usui ,  Kikuo Asada ,  Teruhisa Takahashi

IPC分类号： F02M1/00 ,  F02M55/00 ,  F02M55/02

CPC分类号： F02M55/025 ,  F02M55/004

摘要： A common-rail injection system is provided for a diesel engine and has excellent internal pressure fatigue resisting characteristics, vibrational fatigue resisting characteristics and cavitation resisting property and sheet face flawing resisting property, and can be made thin and light in weight. A main pipe rail is manufactured by transformation induced plastic type strength steel. After the main pipe rail is processed, residual austenite is generated by heat treatment, and the reduction processing of stress concentration of a branch hole and a main pipe rail side flow passage crossing portion is performed. Further, it is preferable that an induced plastic transformation is generated on the inner surface of the main pipe rail by autofrettage processing, and compression residual stress is left.

摘要翻译： 本发明提供一种用于柴油发动机的共轨喷射系统，具有优异的内压疲劳抗力特性，抗振性，耐气孔性，耐断层性等优点，能够轻量化。 主导轨由转变诱导塑料型强度钢制成。 在处理主管轨之后，通过热处理产生残余奥氏体，并且执行分支孔和主管轨侧流动通道交叉部分的应力集中的还原处理。 此外，优选通过自动补焊处理在主管轨的内表面上产生诱导塑性变形，并且留下压缩残余应力。

公开(公告)号：US06805144B2

公开(公告)日：2004-10-19

申请号：US10164168

申请日：2002-06-05

申请人： Shoichiro Usui ,  Masayoshi Usui ,  Kikuo Asada

发明人： Shoichiro Usui ,  Masayoshi Usui ,  Kikuo Asada

IPC分类号： A45B2524

CPC分类号： A45B25/28 ,  A45B25/24 ,  A45B2019/008 ,  Y10S224/915

摘要： An expansible and retractable protective cover is provided for umbrellas. The cover is mountable to align with the shaft of the umbrella and can be expanded parallel to the shaft of the umbrella to cover the umbrella after the umbrella has been folded into a closed condition. Thus, the cover contains moisture accumulated on the wet umbrella cloth from scattering.

摘要翻译： 为雨伞提供可扩展和可伸缩的保护罩。 盖可安装成与伞的轴对准，并且可以在伞被折叠成关闭状态之后平行于伞的轴扩展以覆盖伞。 因此，盖子包含积聚在湿雨伞上的水分散射。

公开(公告)号：US06263862B1

公开(公告)日：2001-07-24

申请号：US09114598

申请日：1998-07-13

申请人： Kikuo Asada ,  Masayoshi Usui ,  Eiji Watanabe ,  Kazunori Takikawa ,  Ryuichi Kusanagi

发明人： Kikuo Asada ,  Masayoshi Usui ,  Eiji Watanabe ,  Kazunori Takikawa ,  Ryuichi Kusanagi

IPC分类号： F02M3704

CPC分类号： F16L41/14 ,  B21C37/292

摘要： There is provided a common rail which can effectively restrict a generation of a tensile stress in a lower end inner peripheral edge portion of a branch hole by canceling by means of a compression residual stress and can improve an internal pressure fatigue strength in a branch pipe connecting portion, so that a secure and stable function can be obtained by having an excellent durability and preventing a fluid leakage due to a generation of the crack generation and a method of manufacturing a common rail in which a pressure application process is only added to a normal manufacturing process, no complex equipment is required, and a common rail having a high quality can be manufactured by a low cost without generating problems that an equipment cost is increased by an increase of the process and a productivity is reduced. In a method of manufacturing a common rail structured such that a branch hole communicating with an communication passage of a block rail and having a pressure receiving seat surface open to an outer portion is provided in at least one connecting hole portion provided in a peripheral wall portion in an axial direction of the block rail having the communication passage in a longitudinal inner portion, a pressing seat surface constituted by a connecting head portion provided in an end portion of a branch having a flow passage communicating with the communication passage is brought into contact with and engaged with the pressure receiving seat surface, and the connecting hole portion and a fastening nut previously assembled in the branch pipe are meshed with each other so as to fasten and connect together with pressing under a neck of the connecting head portion, a pressing force is applied to an axial direction of the connecting hole portion from an outer portion by a press method so as to generate a compression residual stress in the periphery of an open end portion of the communication passage of the block rail of the branch hole.

公开(公告)号：US6050611A

公开(公告)日：2000-04-18

申请号：US28703

申请日：1998-02-24

申请人： Kikuo Asada

发明人： Kikuo Asada

IPC分类号： F02M55/02 ,  F16L19/02 ,  F16L41/08

CPC分类号： F02M55/025 ,  F16L41/08 ,  F16L41/14 ,  Y10S285/906

摘要： There is provided a common rail which can reduce a maximum stress value generated in an inner peripheral edge portion of a lower end of a branch hole and can further improve an internal pressure fatigue strength. In the common rail comprising at least one branch hole provided on a peripheral wall portion of a main pipe rail having a communication passage inside an axial core, a pressure receiving seat surface communicating with a branch pipe having a communication passage communicating with the communication passage in a peripheral surface portion of the branch hole and open to an outer portion, thereby bringing a pressing seat surface portion constituted by a connection head portion disposed in an end portion of the branch pipe into contact and engaging therewith, and a joint portion integrally or separately provided in the main pipe rail and a nut previously assembled in the branch pipe end which are meshed with each other so as to be pressed under a neck portion of the connection head portion, thereby being fastened and connected, the main pipe rail has an outer peripheral surface substantially formed in a circular shape, and at least an adjacent portion to the branch hole of the inner peripheral surface is slightly projected or flattened so as to be formed in a vertical cross section of a not complete round shape.

摘要翻译： 提供一种能够减小在分支孔的下端的内周缘部产生的最大应力值的共轨，能够进一步提高内部压力疲劳强度。 在所述共轨中，包括至少一个分支孔，所述至少一个分支孔设置在具有在轴向芯内的连通通道的主管道的周壁部分上，压力接收座表面与具有与所述连通通道连通的连通通道的分支管连通， 所述分支孔的周面部分向外部开口，从而使由设置在所述分支管的端部中的连接头部构成的按压座表面部分与所述分支管的端部接触并与其接合，以及一体地或分开地接合部 设置在主管道中，并且预先组装在分支管端中的螺母彼此啮合，以便被压在连接头部的颈部下方，从而被紧固连接，主管轨具有外部 外周表面基本上形成为圆形，并且至少与内周边的分支孔相邻的部分 轮廓表面略微​​突出或变平，以形成为不完整圆形的垂直横截面。

公开(公告)号：US4346739A

公开(公告)日：1982-08-31

申请号：US199290

申请日：1980-10-21

申请人： Kikuo Asada

发明人： Kikuo Asada

IPC分类号： F16L9/02 ,  B21C37/06 ,  B23P15/16 ,  F02M55/02 ,  F16L9/04 ,  F16L9/14

CPC分类号： F02M55/02 ,  B23P15/16 ,  F16L9/04 ,  Y10T29/4994

摘要： A composite metal tubing is provided which includes an inner tubular member press fitted into the bore of an outer tubular member. The inner tubular member is made of a steel having a tensile strength of at least 48 kg/mm.sup.2. Additionally, the wall of the inner tubular member has a thickness equal to 1.5 to 8.5% of the outer diameter of the outer tubular member. The resultant composite tubing has increased pressure resistance and resists cavitation.

摘要翻译： 提供了一种复合金属管，其包括装配到外部管状构件的孔中的内部管状构件压力。 内管状构件由抗拉强度至少为48kg / mm2的钢制成。 此外，内部管状构件的壁具有等于外部管状构件的外径的1.5至8.5％的厚度。 所得的复合管材具有增加的耐压性并抵抗空化。

公开(公告)号：US08147623B2

公开(公告)日：2012-04-03

申请号：US12244641

申请日：2008-10-02

申请人： Kikuo Asada ,  Osamu Endo ,  Katsunori Nagao ,  Keisuke Hitoshio

发明人： Kikuo Asada ,  Osamu Endo ,  Katsunori Nagao ,  Keisuke Hitoshio

IPC分类号： C22C38/02 ,  C22C38/04

CPC分类号： C22C38/02 ,  C21D8/10 ,  C21D9/08 ,  C21D9/14 ,  C21D2211/004 ,  C22C38/04 ,  F02M55/02 ,  F02M61/166 ,  F02M2200/03 ,  F02M2200/9053 ,  Y10S148/909

摘要： To provide a steel pipe as a fuel injection pipe with high material strength, high internal pressure limit free from fatigue failure, prolonged fatigue life, and high reliability. A steel pipe as a fuel injection pipe of 500 N/mm2 or higher tensile strength comprising, by mass, C: 0.12 to 0.27%, Si: 0.05 to 0.40%, and Mn: 0.8 to 2.0%, and the balance being Fe and impurities, the contents of Ca, P, and S in the impurities being Ca: 0.001% or less, P: 0.02% or less, and S: 0.01% or less, respectively, characterized in that the maximum diameter of nonmetallic inclusions present in at least in a region extending from the inner surface of the steel pipe to a depth of 20 μm is 20 μm or less. Further, this steel pipe may contain, in place of a portion of Fe, at least one selected from among Cr: 1% or less, Mo: 1% or less, Ti: 0.04% or less, Nb: 0.04% or less, and V: 0.1% or less.

摘要翻译： 提供具有高材料强度的钢管作为燃料喷射管，没有疲劳破坏的高内压极限，延长的疲劳寿命和高可靠性。 作为500N / mm 2以上的拉伸强度的燃料喷射管的钢管，以质量计C：0.12〜0.27％，Si：0.05〜0.40％，Mn：0.8〜2.0％，余量为Fe， 杂质中Ca，P，S的含量分别为Ca：0.001％以下，P：0.02％以下，S：0.01％以下，其特征在于，非金属夹杂物的最大直径存在于 至少在从钢管的内表面延伸到20μm的深度的区域中，为20μm以下。 此外，该钢管可以含有选自Cr：1％以下，Mo：1％以下，Ti：0.04％以下，Nb：0.04％以下的至少一种，代替Fe的一部分， V：0.1％以下。

公开(公告)号：US07568736B2

公开(公告)日：2009-08-04

申请号：US11127896

申请日：2005-05-12

申请人： Kikuo Asada

发明人： Kikuo Asada

IPC分类号： F16L19/00

CPC分类号： F02M55/005 ,  F02M55/025 ,  F16L41/08 ,  F16L41/14

摘要： A joint structure of a branch connector for a common rail capable of securing axial force applied to a seal surface and a branch connector and increasing bending fatigue strength of the branch connector is provided. In the joint structure of the branch connector for the common rail which includes a screw sleeve concentric with a bearing surface of a main pipe rail and connects a branch connector to the main pipe rail via a sleeve washer which has been externally fixed to the branch connector in advance to be combined therewith as one piece, a clearance is provided between an inner surface of the sleeve washer at an external opening thereof and an outer surface of the branch connector.

摘要翻译： 提供了一种用于共轨的分支连接器的连接结构，其能够确保施加到密封表面的轴向力和分支连接器，并且提高了分支连接器的弯曲疲劳强度。 在用于共轨的分支连接器的接头结构中，其包括与主管轨的轴承表面同心的螺旋套筒，并且通过套筒垫圈将分支连接器连接到主管轨道，套筒垫圈已经被外部固定到分支连接器 预先将其组合为一体，在套筒垫圈的外部开口的内表面和分支连接器的外表面之间设置间隙。