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公开(公告)号：US08418753B2
公开(公告)日：2013-04-16
申请号：US12698553
申请日：2010-02-02
申请人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
发明人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
摘要： A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
摘要翻译： 通过在圆筒管周壁上形成突出到管周壁的内部并且通过推动而形成的多个突出部分来构造换热管。 多个突出部分分别跨越管轴线形成圆锥形，并沿着管周壁上的虚拟螺旋排列。 因此，可以提供一种便于形成多个突出部分的热交换管，其厚度几乎不变化并且不形成突出部分，并且能够有助于提高热交换效率。
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公开(公告)号：US20100224349A1
公开(公告)日：2010-09-09
申请号：US12698553
申请日：2010-02-02
申请人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
发明人： Isao Hirokawa , Tetsuaki Nakayama , Yasuyuki Watanabe , Toshihiro Kondo , Atsumu Naoi , Hideyuki Ushiyama
摘要： A heat exchange tube is constructed by forming, on a cylindrical tube peripheral wall, a plurality of projecting portions which project to an inside of the tube peripheral wall, and which are formed by pushing. The plurality of projecting portions are formed, respectively, into conical shapes across a tube axis, and are arranged along virtual spirals on the tube peripheral wall. Accordingly, it is possible to provide a heat exchange tube which facilitates formation of a plurality of projecting portions with the thickness hardly changed and without formation of protruded portions, and which is capable of contributing to enhancement of heat exchanging efficiency.
摘要翻译： 通过在圆筒管周壁上形成突出到管周壁的内部并且通过推动而形成的多个突出部分来构造换热管。 多个突出部分分别跨越管轴线形成圆锥形，并沿着管周壁上的虚拟螺旋排列。 因此，可以提供一种便于形成多个突出部分的热交换管，其厚度几乎不变化并且不形成突出部分，并且能够有助于提高热交换效率。
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公开(公告)号：US07066296B2
公开(公告)日：2006-06-27
申请号：US10679886
申请日：2003-10-06
申请人： Masayuki Uegane , Isao Hirokawa
发明人： Masayuki Uegane , Isao Hirokawa
CPC分类号： F01N13/18 , F01N1/084 , F01N1/166 , F01N2290/10 , Y10T137/7891 , Y10T137/7892 , Y10T137/7893
摘要： A valve device for a silence opens a bypass passage provided in the silencer to flow exhaust gas through the bypass passage when exhaust gas pressure rises to a certain pressure. The valve device includes a base having a valve opening through which exhaust gas flows, and a plate-like valve for opening and closing the valve opening. The plate-like valve is fixed to the base at its proximal portion, and is bent at both edges thereof in a certain range extending from its distal end toward the proximal portion.
摘要翻译： 当废气压力上升到一定压力时，用于静音的阀装置打开设置在消音器中的旁路通道，以通过旁通通道排出废气。 阀装置包括具有排气流过的阀开口的基座和用于打开和关闭阀开口的板状阀。 板状阀在其近端部分处固定到基部，并且在其两个边缘处在从其远端向近端部分延伸的一定范围内弯曲。
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公开(公告)号：US5712454A
公开(公告)日：1998-01-27
申请号：US592523
申请日：1996-01-26
CPC分类号： F01N1/166 , F01N1/084 , F01N1/10 , F01N1/165 , F01N1/24 , F01N2470/02 , F01N2470/14
摘要： An exhaust system in an internal combustion engine includes a flow rate regulating valve which is positioned in an intermediate portion of an exhaust gas flow passage. The flow rate regulating valve has a rotary shaft rotatably supported in a valve housing, and a rotationally biasing spring mounted between the rotary shaft and the valve housing which provides a spring force to rotationally bias the rotary shaft. In the exhaust system, an axially biasing spring is mounted separately from the rotationally biasing spring between the valve housing and the rotary shaft for biasing the rotary shaft in an axial direction. The rotary shaft is provided with an abutment surface which faces in the one axial direction, and the valve housing is provided with a limiting portion which abuts against the abutment surface to limit the axial movement of the rotary shaft. Thus, the rotary shaft is biased in the one axial direction by the axially biasing spring, and the abutment surface of the rotary shaft is urged against the limiting portion of the valve housing, thereby avoiding the axially chattering of the rotary shaft.
摘要翻译： 内燃机中的排气系统包括位于排气流路的中间部的流量调节阀。 流量调节阀具有可旋转地支撑在阀壳体中的旋转轴和安装在旋转轴和阀壳体之间的旋转偏压弹簧，其提供弹簧力以旋转偏置旋转轴。 在排气系统中，轴向偏置弹簧与阀壳体和旋转轴之间的旋转偏压弹簧分开安装，用于沿轴向偏置旋转轴。 旋转轴设置有面向一个轴向的抵接面，并且阀壳体设置有限制部，该限制部抵靠抵接面以限制旋转轴的轴向运动。 因此，旋转轴通过轴向偏置弹簧沿一个轴向偏置，并且旋转轴的抵接面被推靠在阀壳体的限制部分上，从而避免了旋转轴的轴向颤动。
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