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：US06397881B1

公开(公告)日：2002-06-04

申请号：US09033681

申请日：1998-03-03

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： F16K4300

CPC分类号： B21C37/29 ,  F02M55/005 ,  F02M55/025 ,  Y10T137/6123

摘要： A member for a high pressure fluid or a member for a high pressure fluid with a built-in slider having higher quality which can be provided at a low price, and by which the generation of tensile stress in the lower end inner peripheral edge part of a branch hole can be canceled by compressive residual stress to be effectively restrained, the internal pressure fatigue strength in the branch hole part can be improved to be excellent in durability, prevent a fluid leakage due to the occurrence of cracks and then exhibit a sure and stable function, further only the addition of the pressing force applying process to the ordinary manufacturing process will be sufficient, and complicated equipment is not required to hardly cause the problems of an increase in the equipment cost due to an increase in the number of processes and lowering of productivity. The method of forming a branch hole communicating with a hollow part in a member for a high pressure fluid having the hollow part, which is characterized in that before or after, or simultaneously with a process of pressing inward the member for a high pressure fluid from the outside to form a part where compressive stress remains on the hollow part side inner peripheral surface, a process of boring a branch hole opened to the hollow part is executed to make the compressive residual stress exist in the peripheral edge of the branch hole, and a branch hole part of a member for a high pressure fluid formed by the described method.

摘要翻译： 用于高压流体的构件或具有可以以低价格提供的具有较高质量的内置滑块的高压流体的构件，并且通过该构件在下端内周边缘部分中产生拉伸应力 可以通过压缩残余应力来消除分支孔，以有效地抑制，能够提高分支孔部的内部压力疲劳强度，从而具有优异的耐久性，防止由于裂纹的发生而导致的流体泄漏， 稳定的功能，只要在普通制造工序中增加按压力就足够了，而且复杂的设备不需要几乎不会由于加工次数的增加而造成设备成本上升的问题， 降低生产率。在具有中空部分的高压流体的构件中形成与中空部分连通的分支孔的方法，其是cha 其特征在于，在其前后，或者同时具有从外部向内压入高压流体的构件的过程，以形成在中空部件侧内周面上残留有压应力的部分，打开分支孔的工序 执行到中空部分以使分支孔的周边边缘存在压缩残余应力，以及通过所述方法形成的用于高压流体的部件的分支孔部分。

公开(公告)号：US06408826B1

公开(公告)日：2002-06-25

申请号：US09033541

申请日：1998-03-20

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： F02M5502

摘要： There is provided a common rail which can effectively restrict a generation of a stress in a lower end inner peripheral edge portion of a branch hole 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 by the press is only added to a normal manufacturing process, no complex equipment is required, 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 the method of the invention, there is provided a method of manufacturing a common rail comprising at least one branch hole provided in an axial 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 metal fitting surrounding an outer peripheral portion of 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, wherein a pressing force is applied to the main pipe rail near the branch hole from an outer portion to a diametrical direction by a press method, thereby generating a compression residual stress at a portion near the open end portion of the communication passage of the main pipe rail in the branch hole.

公开(公告)号：US6126208A

公开(公告)日：2000-10-03

申请号：US33344

申请日：1998-03-02

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： B21C37/29 ,  F02M55/00 ,  F02M55/02 ,  A16L41/08

CPC分类号： F02M55/025 ,  B21C37/29 ,  F02M55/005 ,  Y10T29/49442

摘要： A common rail includes a generally cylindrical peripheral wall having a communication passage extending axially therethrough. At least one branch hole extends through the peripheral wall and is aligned perpendicular to the axis of the common rail. The intersection of the branch hole with the outer surface of the main pipe rail defines an outwardly flared pressure receiving seat for receiving the connection head portion of a branch pipe. A sleeve nipple is welded or brazed to the outer surface of the main pipe rail and surrounds the branch hole. Inner surface regions of the peripheral wall surrounding the branch hole have a compression residual stress imparted thereto. The creation of the compression residual stress may cause a portion of the inner surface of the main pipe rail surrounding the branch hole to assume a non-cylindrical configuration.

摘要翻译： 共轨包括具有沿轴向延伸穿过的连通通道的大致圆柱形周壁。 至少一个分支孔延伸穿过周壁并且垂直于共轨的轴线对齐。 分支孔与主管道的外表面的交叉部分形成一个向外扩张的压力接收座，用于接收支管的连接头部。 套管接头焊接或钎焊到主管轨的外表面并围绕分支孔。 围绕分支孔的周壁的内表面区域具有赋予的压缩残余应力。 压缩残余应力的产生可能导致围绕分支孔的主管轨道的内表面的一部分呈现非圆柱形构型。

公开(公告)号：US06213095B1

公开(公告)日：2001-04-10

申请号：US09033816

申请日：1998-03-03

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

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

IPC分类号： F02M4100

CPC分类号： B21C37/29 ,  F02M55/025

摘要： A common rail is provided for promoting inner pressure fatigue strength at location in proximity to a branch pipe. The common rail includes a main pipe rail with a main flow path. At least one boss in provided on the peripheral wall and includes a branch hole communicating the main flow path. The branch pipe is provided with a connecting head that has a pressing face at and end of the branch pipe. The pressing face of the branch pipe is urged into a pressure receiving seat of the boss. A compressive residual stress is provided at location in the peripheral wall where the main flow path of the main pipe rail communicates with the branch hole. The compressive residual stress increases the pressure fatigue strength by substantially canceling tensile stress.

摘要翻译： 提供了一种用于在分支管附近的位置处提高内部压力疲劳强度的共轨。 共轨包括具有主流路的主管道。 至少一个凸台设置在周壁上并且包括连通主流路的分支孔。 分支管设置有连接头，该连接头在分支管的端部和末端具有按压面。 分支管的按压面被推入凸台的受压座。 在主管道的主流路与分支孔连通的周壁的位置设有压缩残余应力。 通过基本上消除拉伸应力，压缩残余应力增加了压力疲劳强度。

公开(公告)号：US07721714B2

公开(公告)日：2010-05-25

申请号：US11703952

申请日：2007-02-08

申请人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

发明人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

IPC分类号： F02M59/46

CPC分类号： F02M69/465 ,  F02M55/025 ,  F02M2200/315

摘要： A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexible absorbing wall surface 10 formed on a wall surface of a fuel delivery body 1 is loosened due to internal pressure changes to render internal volume of the fuel delivery body 1 increasable, αL/√{square root over ( )}V determined by sonic speed αL of fuel flowing through the fuel delivery body 1 and the internal volume V of the fuel delivery body 1 is set as 20×103(m−0.5·sec−1)≦αL/√{square root over ( )}V≦85×103(m−0.5·sec−1) while a ratio αL/αH of equivalent sonic speed αH in a high frequency area to the sonic speed αL of the fuel is set as αL/αH≦0.7, and the cross section shape in a perpendicular direction to an axis of the fuel delivery body 1 is formed in a substantially double side concaved shape, a substantially flask shape, a substantially trapezoid shape, a substantially key shape, and a substantially goggles shape.

摘要翻译： 一种燃料输送管，其能够降低由于喷射喷嘴引起的燃料喷射时的压力脉动，防止了地板下的管道装置的振动和噪声，并且降低了来自燃料输送管的辐射声，其中柔性吸收壁表面 在燃料输送体1的壁面上形成的燃料流10由于内部压力变化而松动，使得燃料输送体1的内部体积增加，αL/√{平方根超过（）} V由燃料流的声速αL确定 通过燃料输送体1和燃料输送体1的内部容积V被设定为20×103（m-0.5·sec-1）＆nlE;αL/√{平方根超过（）} V＆nlE; 85×103（ m-0.5·sec-1），而高频区域中的等效声速αH与燃料的声速αL的比αL/αH被设定为αL/αH＆nlE; 0.7，垂直方向的截面形状 燃料输送体1的轴线形成在基本上为双面的c侧 基本上为梯形，基本上为键形，基本上为护目镜形状。

公开(公告)号：US07185636B2

公开(公告)日：2007-03-06

申请号：US10523651

申请日：2003-10-08

申请人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

发明人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

IPC分类号： F02M37/04

CPC分类号： F02M69/465 ,  F02M55/025 ,  F02M2200/315

摘要： A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexible absorbing wall surface 10 formed on a wall surface of a fuel delivery body 1 is loosened due to internal pressure changes to render internal volume of the fuel delivery body 1 increasable, αL/√{square root over ( )}V determined by sonic speed αL of fuel flowing through the fuel delivery body 1 and the internal volume V of the fuel delivery body 1 is set as 20×103(m−0.5·sec−1)≦αL/√{square root over ( )}V≦85×103(m−0.5·sec−) while a ratio αL/αH of equivalent sonic speed αH in a high frequency area to the sonic speed αL of the fuel is set as αL/αH≦0.7, and the cross section shape in a perpendicular direction to an axis of the fuel delivery body 1 is formed in a substantially double side concaved shape, a substantially flask shape, a substantially trapezoid shape, a substantially key shape, and a substantially goggles shape.

摘要翻译： 一种燃料输送管，其能够降低由于喷射喷嘴引起的燃料喷射时的压力脉动，防止了地板下的管道装置的振动和噪声，并且降低了来自燃料输送管的辐射声，其中柔性吸收壁表面 形成在燃料输送体1的壁面上的燃料喷射器10由于内部压力变化而松动，从而使得燃料输送体1的内部体积可以增加，α（L） 流经燃料输送体1的燃料的声速αL L和燃料输送体1的内部体积V被设定为20×10 3（m≤0.5） .sec ^{-1 ）<=αLL / / {平方根（V <= 85×10 3）（m < > -0.5 .sec - ），而等效声速αH的比值αL / / SUB>在燃料的声速αL 的高频区域中被设置为αL}

公开(公告)号：US07318418B2

公开(公告)日：2008-01-15

申请号：US11342031

申请日：2006-01-27

申请人： Shoichiro Usui ,  Masayoshi Usui ,  Yasuji Sakamoto ,  Eiji Watanabe ,  Yasuaki Hashimoto

发明人： Shoichiro Usui ,  Masayoshi Usui ,  Yasuji Sakamoto ,  Eiji Watanabe ,  Yasuaki Hashimoto

IPC分类号： F02M55/02 ,  F02M55/00

CPC分类号： F02M55/025 ,  F02M55/005 ,  F02M2200/8084

摘要： A common rail a diesel engine includes a branching connection body firmly fixed on common rail body by friction welding. A fronting face of the branching connection body to be fixed on the common rail body by friction welding is in the shape of a cone whose center part is slightly projected and whose peripheral part is a gentle cone face.

摘要翻译： 共轨柴油发动机包括通过摩擦焊接牢固地固定在共轨主体上的分支连接体。 通过摩擦焊接固定在共轨主体上的分支连接体的前面呈圆锥形，其中心部分略微突出，其周边部分是平缓的锥面。

公开(公告)号：US20070169754A1

公开(公告)日：2007-07-26

申请号：US11703952

申请日：2007-02-08

申请人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

发明人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

IPC分类号： F02M55/02

CPC分类号： F02M69/465 ,  F02M55/025 ,  F02M2200/315

摘要： A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexible absorbing wall surface 10 formed on a wall surface of a fuel delivery body 1 is loosened due to internal pressure changes to render internal volume of the fuel delivery body 1 increasable, αL/√{square root over ( )} V determined by sonic speed αL of fuel flowing through the fuel delivery body 1 and the internal volume V of the fuel delivery body 1 is set as 20×103 (m−0.5·sec−1)≦αL/√{square root over ( )} V≦85×103(m−0.5·sec−1) while a ratio αL/αH of equivalent sonic speed αH in a high frequency area to the sonic speed αL of the fuel is set as αL/αH≦0.7, and the cross section shape in a perpendicular direction to an axis of the fuel delivery body 1 is formed in a substantially double side concaved shape, a substantially flask shape, a substantially trapezoid shape, a substantially key shape, and a substantially goggles shape.

摘要翻译： 一种燃料输送管，其能够降低由于喷射喷嘴引起的燃料喷射时的压力脉动，防止了地板下的管道装置的振动和噪声，并且降低了来自燃料输送管的辐射声，其中柔性吸收壁表面 形成在燃料输送体1的壁面上的燃料喷射器10由于内部压力变化而松动，从而使得燃料输送体1的内部体积可以增加，α（L） 流经燃料输送体1的燃料的声速αL L和燃料输送体1的内部体积V被设定为20×10 3（m≤0.5） .sec ^{-1 ）<=αLL / / {平方根（V <= 85×10 3）（m < > -0.5 .sec -1），而等效声速αH的比率αL/ 在高频区域中的燃料的声速αLL 被设置为α< / SUB>/alpha_H<=0.7，并且沿与燃料输送主体1的轴线垂直的方向的横截面形状形成为大致双边凹形，大致为烧瓶形状， 基本上梯形，基本上是钥匙形状和大致护目镜形状。}

公开(公告)号：US20050257774A1

公开(公告)日：2005-11-24

申请号：US10523651

申请日：2003-10-08

申请人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

发明人： Masayoshi Usui ,  Eiji Watanabe ,  Hikari Tsuchiya ,  Yoshiyuki Serizawa ,  Kazuteru Mizuno ,  Koichi Hayashi ,  Tetsuo Ogata

IPC分类号： F02M55/02 ,  F02M63/00 ,  F02M1/00

CPC分类号： F02M69/465 ,  F02M55/025 ,  F02M2200/315

摘要： A fuel delivery pipe capable of reducing a pressure pulsation at the time of a fuel injection due to injection nozzles, preventing vibrations and noises at an underfloor pipe arrangement, and turning down a radiate sound from the fuel delivery pipe, wherein a flexible absorbing wall surface 10 formed on a wall surface of a fuel delivery body 1 is loosened due to internal pressure changes to render internal volume of the fuel delivery body 1 increasable, αL/{square root}{square root over ( )}V determined by sonic speed αL of fuel flowing through the fuel delivery body 1 and the internal volume V of the fuel delivery body 1 is set as 20×103(m−0.5·sec−1)≦αL/{square root}{square root over ( )}V≦85×103(m−0.5·sec−1) while a ratio αL/αH of equivalent sonic speed αH in a high frequency area to the sonic speed αL of the fuel is set as αL/αH≦0.7, and the cross section shape in a perpendicular direction to an axis of the fuel delivery body 1 is formed in a substantially double side concaved shape, a substantially flask shape, a substantially trapezoid shape, a substantially key shape, and a substantially goggles shape.

摘要翻译： 一种燃料输送管，其能够降低由于喷射喷嘴引起的燃料喷射时的压力脉动，防止了地板下的管道装置的振动和噪声，并且降低了来自燃料输送管的辐射声，其中柔性吸收壁表面 在燃料输送体1的壁面上形成的气体10由于内部压力变化而松动，使得燃料输送体1的内部体积可以增加，α/ L /平方根（平方根） 通过燃料输送主体1的燃料和燃料输送体1的内部体积V的声速αL L确定的V被设定为20×10 3（m < > -0.5 .sec -1 <=αL/ {平方根} {平方根（V <= 85×10 3） SUP>（m <-0.5 S ^{-1），而等效声音的比值αL/ 在高频区域中的速度α SUB与燃料的声速αL 是 t，并且与燃料输送体1的轴线垂直的方向的截面形状形成为大致双面 基本上为梯形，大致按键形状，大致护目镜形状。}