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1. 发明申请

US20100078085A1 Relief valve structure 有权
标题翻译：泄压阀结构
公开(公告)号：US20100078085A1
公开(公告)日：2010-04-01
申请号：US12585936
申请日：2009-09-29
申请人： Yoshitaka Kurokawa , Masahiro Kasahara , Yoshiro Umezawa
发明人： Yoshitaka Kurokawa , Masahiro Kasahara , Yoshiro Umezawa
IPC分类号： F16K17/02
CPC分类号： F16K17/0473 , Y10T137/7904 , Y10T137/7925
摘要： To provide a relief valve structure for an oil pump, which is capable of appropriately controlling/switching the discharge pressure and flow rate of oil to an optimum condition in low, middle and high speed regions of an engine. The relief valve structure has: a relief valve having formed therein a valve flow path for communicating between a valve head part and an outer circumferential side part; a valve housing in which a valve passage accommodating the relief valve is formed; a relief flow-in part formed on an axial direction one end side of the valve passage and communicating with the valve passage; a first discharge part formed in the valve housing and communicating with the valve flow path by the movement of the relief valve; and a second discharge part that is opened by allowing the valve head part to pass therethrough. The second discharge part is positioned nearer to the relief flow-in part than the first discharge part. The shortest gap between an outer circumferential side part opening of the valve flow path and the first discharge part is the same as or shorter than the shortest gap between the valve head part and the second discharge part during an initial state of the relief valve.
摘要翻译：提供一种用于油泵的安全阀结构，其能够适当地控制/切换排出压力和油的流量到发动机的低，中，高速区域的最佳状态。安全阀结构具有：安装阀，其中形成有用于在阀头部和外周侧部之间连通的阀流路; 阀壳体，其中形成有容纳所述安全阀的阀通道; 所述泄压流入部形成在所述阀通路的轴向一端侧，与所述阀通路连通; 第一排出部，其形成在所述阀壳体中，并且通过所述安全阀的移动与所述阀流路连通; 以及通过允许阀头部分通过而打开的第二排出部。第二排出部位于比第一排出部更靠近排泄流入部的位置。在安全阀的初始状态期间，阀流路的外周侧开口与第一排出部之间的最短间隙与阀头部与第二排出部之间的最短间隙相同或短。

2. 发明授权

US08297307B2 Relief valve structure 有权
标题翻译：泄压阀结构
公开(公告)号：US08297307B2
公开(公告)日：2012-10-30
申请号：US12585936
申请日：2009-09-29
申请人： Yoshitaka Kurokawa , Masahiro Kasahara , Yoshiro Umezawa
发明人： Yoshitaka Kurokawa , Masahiro Kasahara , Yoshiro Umezawa
IPC分类号： F16K17/04
CPC分类号： F16K17/0473 , Y10T137/7904 , Y10T137/7925
摘要： To provide a relief valve structure for an oil pump, which is capable of appropriately controlling/switching the discharge pressure and flow rate of oil to an optimum condition in low, middle and high speed regions of an engine. The relief valve structure has: a relief valve having formed therein a valve flow path for communicating between a valve head part and an outer circumferential side part; a valve housing in which a valve passage accommodating the relief valve is formed; a relief flow-in part formed on an axial direction one end side of the valve passage and communicating with the valve passage; a first discharge part formed in the valve housing and communicating with the valve flow path by the movement of the relief valve; and a second discharge part that is opened by allowing the valve head part to pass therethrough. The second discharge part is positioned nearer to the relief flow-in part than the first discharge part. The shortest gap between an outer circumferential side part opening of the valve flow path and the first discharge part is the same as or shorter than the shortest gap between the valve head part and the second discharge part during an initial state of the relief valve.
摘要翻译：提供一种用于油泵的安全阀结构，其能够适当地控制/切换排出压力和油的流量到发动机的低，中，高速区域的最佳状态。安全阀结构具有：安装阀，其中形成有用于在阀头部和外周侧部之间连通的阀流路; 阀壳体，其中形成有容纳所述安全阀的阀通道; 所述泄压流入部形成在所述阀通路的轴向一端侧，与所述阀通路连通; 第一排出部，其形成在所述阀壳体中，并且通过所述安全阀的移动与所述阀流路连通; 以及通过允许阀头部分通过而打开的第二排出部。第二排出部位于比第一排出部更靠近排泄流入部的位置。在安全阀的初始状态期间，阀流路的外周侧开口与第一排出部之间的最短间隙与阀头部与第二排出部之间的最短间隙相同或短。

3. 发明授权

US08763634B2 Relief device for oil pump 有权
标题翻译：油泵泄压装置
公开(公告)号：US08763634B2
公开(公告)日：2014-07-01
申请号：US13545899
申请日：2012-07-10
申请人： Nobuyuki Akaishi , Masataka Ikawa , Yasuhiro Ueta , Takuji Ishioka , Hidehiko Kamiyama , Takuya Yamazaki , Yoshiro Umezawa , Hirokazu Inoue , Yoshitaka Kurokawa
发明人： Nobuyuki Akaishi , Masataka Ikawa , Yasuhiro Ueta , Takuji Ishioka , Hidehiko Kamiyama , Takuya Yamazaki , Yoshiro Umezawa , Hirokazu Inoue , Yoshitaka Kurokawa
IPC分类号： F16K17/00
CPC分类号： F01M1/16 , F04B49/08 , F04C2/10 , F04C14/26 , F04C2210/206 , Y10T137/7845 , Y10T137/7867 , Y10T137/7925 , Y10T137/7929
摘要： A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.
摘要翻译：释放装置包括由泄压流入部分，阀通道部分，凹部和具有释放孔的排油部分构成的释放壳体; 安全阀，其具有在第一大直径部分和第二大直径部分之间的小直径部分; 以及将安全阀弹性地偏压到释放流入部的弹簧。凹部形成在比泄油部分侧更靠近排油部的位置处，凹部的轴向长度大于安全阀的第一大直径部分的轴向长度，并且最短凹部与浮雕孔之间的轴向距离小于小径部的轴向长度。

4. 发明申请

US20130014838A1 RELIEF DEVICE FOR OIL PUMP 有权
标题翻译：油泵安全装置
公开(公告)号：US20130014838A1
公开(公告)日：2013-01-17
申请号：US13545899
申请日：2012-07-10
申请人： Nobuyuki AKAISHI , Masataka Ikawa , Yasuhiro Ueta , Takuji Ishioka , Hidehiko Kamiyama , Takuya Yamazaki , Yoshiro Umezawa , Hirokazu Inoue , Yoshitaka Kurokawa
发明人： Nobuyuki AKAISHI , Masataka Ikawa , Yasuhiro Ueta , Takuji Ishioka , Hidehiko Kamiyama , Takuya Yamazaki , Yoshiro Umezawa , Hirokazu Inoue , Yoshitaka Kurokawa
IPC分类号： F16K15/00
CPC分类号： F01M1/16 , F04B49/08 , F04C2/10 , F04C14/26 , F04C2210/206 , Y10T137/7845 , Y10T137/7867 , Y10T137/7925 , Y10T137/7929
摘要： A relief device includes a relief housing constituted by a relief inflow portion, a valve passage portion, a recess, and an oil discharge portion having a relief hole; a relief valve having a small-diameter portion between a first large-diameter portion and a second large-diameter portion; and a spring elastically biasing the relief valve toward the relief inflow portion. The recess is formed at a position that is closer to the relief inflow portion side than to the oil discharge portion, the axial length of the recess is larger than the axial length of the first large-diameter portion of the relief valve, and the shortest axial distance between the recess and the relief hole is less than the axial length of the small-diameter portion.
摘要翻译：释放装置包括由泄压流入部分，阀通道部分，凹部和具有释放孔的排油部分构成的释放壳体; 安全阀，其具有在第一大直径部分和第二大直径部分之间的小直径部分; 以及将安全阀弹性地偏压到释放流入部的弹簧。凹部形成在比泄油部分侧更靠近排油部的位置处，凹部的轴向长度大于安全阀的第一大直径部分的轴向长度，并且最短凹部与浮雕孔之间的轴向距离小于小径部的轴向长度。

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