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公开(公告)号：US07484943B2
公开(公告)日：2009-02-03
申请号：US11891532
申请日：2007-08-09
Applicant: Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
Inventor： Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
CPC classification number: F04C18/084 , F04C18/16
Abstract: A screw pump includes a housing and a pair of intermeshing screw rotors. The housing has an inlet port and an outlet port. Each rotor has a first portion whose lead angle decreases. The first portion and the housing form an inlet space and a pump space. Winding angle of the first portion has a first region and a second region. The first region is located in a predetermined range from the end on the first portion adjacent to the inlet port toward the outlet port. The second region is located adjacent to the first region. Reduction rate of the lead angle of the first portion in the first region is set smaller than that in the second region. The maximum lead angle of the first portion is set smaller than a lead angle which decreases at a constant rate in the first region and the second region.
Abstract translation: 螺杆泵包括壳体和一对相互啮合的螺杆转子。 壳体具有入口和出口。 每个转子具有引导角减小的第一部分。 第一部分和壳体形成入口空间和泵空间。 第一部分的卷绕角度具有第一区域和第二区域。 第一区域位于与入口相邻的第一部分的端部朝向出口的预定范围内。 第二区域位于第一区域附近。 第一区域中的第一部分的引导角的减小率被设定为小于第二区域的降低率。 第一部分的最大引导角被设定为小于在第一区域和第二区域以恒定速率减小的引导角。
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公开(公告)号：US07481628B2
公开(公告)日：2009-01-27
申请号：US11363335
申请日：2006-02-27
Applicant: Shinya Yamamoto , Makoto Yoshikawa , Takao Mishina
Inventor： Shinya Yamamoto , Makoto Yoshikawa , Takao Mishina
IPC: F04B25/00
CPC classification number: F04B43/02
Abstract: A diaphragm pump for pumping a fluid includes a housing, a pump chamber defined in the housing, a first diaphragm for sealing the pump chamber, a pressure control chamber defined in the housing adjacent to the pump chamber via the first diaphragm, a second diaphragm for sealing the pressure control chamber, a drive mechanism operable to deform the first and second diaphragms, an introduction passage for introducing into the pressure control chamber a part of the fluid that is discharged from the pump chamber, and a pressure regulating valve disposed in the introduction passage for adjusting a pressure in the pressure control chamber to a medium pressure between a suction pressure and a discharge pressure.
Abstract translation: 用于泵送流体的隔膜泵包括壳体，限定在壳体中的泵室，用于密封泵室的第一隔膜，经由第一膜片限定在壳体中与泵室相邻的压力控制室，第二隔膜， 密封压力控制室，可操作以使第一和第二隔膜变形的驱动机构，用于将从泵室排出的一部分流体引入压力控制室的引入通道，以及设置在引入部中的压力调节阀 通道，用于将压力控制室中的压力调节到吸入压力和排出压力之间的介质压力。
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公开(公告)号：US20080038137A1
公开(公告)日：2008-02-14
申请号：US11891531
申请日：2007-08-09
Applicant: Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
Inventor： Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
IPC: F04C15/00
CPC classification number: F04C18/16 , F01C21/108 , F04C18/084 , F04C25/02 , F04C29/12
Abstract: A screw pump includes a housing and a pair of intermeshing screw rotors. An end face of the rotor adjacent to an inlet port of the housing is provided with an inlet opening. Each rotor has a first portion whose lead angle changes. The first portions and the housing cooperate to form an inlet space. During rotation of the rotors, communication between the inlet space and the inlet port is blocked by the first portions and the housing thereby to form a closed pump space adjacent to the inlet space. Volume of the pump space is set smaller than the maximum volume of the inlet space. A closure member is provided which covers at least a part of the inlet openings. The closure member closes the inlet space when the volume of the inlet space exceeds that of the pump space.
Abstract translation: 螺杆泵包括壳体和一对相互啮合的螺杆转子。 与壳体的入口相邻的转子的端面设置有入口开口。 每个转子具有引导角改变的第一部分。 第一部分和壳体协作形成入口空间。 在转子旋转期间，入口空间和入口之间的连通被第一部分和壳体阻挡，从而在入口空间附近形成封闭的泵空间。 泵空间的容积设定为小于入口空间的最大体积。 提供封闭构件，其覆盖入口开口的至少一部分。 当入口空间的体积超过泵的空间时，封闭构件封闭入口空间。
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公开(公告)号：US06307621B1
公开(公告)日：2001-10-23
申请号：US09713203
申请日：2000-11-16
Applicant: Koji Endo , Makoto Yoshikawa , Kazuo Watanabe
Inventor： Koji Endo , Makoto Yoshikawa , Kazuo Watanabe
IPC: G03B2700
CPC classification number: B65H3/0684 , B65H3/0615 , B65H3/56 , B65H2301/4222
Abstract: The present invention provides pivot 207a of paper edge regulation element 207 that evens up the edges of placed sheets aside from rotation axis 206 of pickup roller 204, forms groove 208 into which rotation axis 206 that has ascended is fitted in paper edge regulation element 207, makes rotation axis 206 fit into groove 208 of paper edge regulation element 207 when pickup roller 204 is lifted to regulate the rotation of paper edge regulation element 207 and makes rotation axis 206 come off groove 208 of paper edge regulation element 207 and become free to rotate when pickup roller 204 is lowered.
Abstract translation: 本发明提供了纸张边缘调节元件207的枢轴207a，其绕除了拾取辊204的旋转轴线206之外的放置的片材的边缘，形成凹槽208，已经上升的旋转轴线206装配到纸张边缘调节元件207中， 当拾取辊204被提起以调节纸张边缘调节元件207的旋转并使旋转轴线206脱离纸张边缘调节元件207的凹槽208并使其自由旋转时，使旋转轴线206配合到纸张边缘调节元件207的凹槽208中 当拾取辊204下降时。
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公开(公告)号：US09090303B2
公开(公告)日：2015-07-28
申请号：US13475033
申请日：2012-05-18
Applicant: Kazutaka Fukao , Tatsuya Matsushita , Makoto Yoshikawa
Inventor： Kazutaka Fukao , Tatsuya Matsushita , Makoto Yoshikawa
CPC classification number: B62K23/06 , B62L3/02 , B62M25/04 , B62M25/08 , Y10T74/20396 , Y10T74/20438
Abstract: A bicycle control device is provided with a mounting bracket, a first lever and an adjustment arrangement. The first lever is pivotally arranged relative to the mounting bracket about a first-axis and about a second axis being non-parallel to the first axis. The first lever is configured relative to the mounting bracket such that a free end of the first lever moves closer to the mounting bracket as the first lever pivots about the first axis from a rest position to an operated position. The adjustment arrangement adjusts the rest position of the first lever relative to the mounting bracket around the second operating axis.
Abstract translation: 自行车控制装置设置有安装支架，第一杆和调节装置。 第一杆相对于安装支架围绕第一轴线枢转地布置，并且约第二轴线不平行于第一轴线。 第一杠杆相对于安装支架配置，使得当第一杠杆围绕第一轴线从静止位置枢转到操作位置时，第一杠杆的自由端更靠近安装支架移动。 调节装置相对于安装支架围绕第二操作轴线调节第一杆的静止位置。
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Patent Agency Ranking
公开(公告)号：US08215937B2
公开(公告)日：2012-07-10
申请号：US12373924
申请日：2007-07-19
Applicant: Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
Inventor： Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
CPC classification number: F04C18/126 , F01C1/086 , F01C1/126 , F01C11/002 , F01C19/125 , F01C21/02 , F01C21/10 , F04C18/086 , F04C23/001 , F04C2230/60 , F04C2240/30 , F04C2240/56
Abstract: A housing (2) of a Roots pump (1) supports a drive shaft (3) and a driven shaft (4) with radial bearings (32, 33) so as to be rotatable. The housing (2) is formed by joining an upper housing member (20) to a lower housing member (10). The lower housing member (10) has lower bearing support portions (13), and the upper housing member (20) has upper bearing support portions (23). Opening edges (13a) of each lower bearing support portion (13) are positioned above the centers (P1) of the bearings (32, 33). An opening width (T1) of each lower bearing support portion (13) is smaller than the diameter (D1) of the bearings (32, 33). This structure suppresses the bearings (32, 33) from being separated from the lower housing member (10) during an assembling operation of the fluid machine.
Abstract translation: 罗茨泵（1）的壳体（2）以可旋转的方式支撑具有径向轴承（32,33）的驱动轴（3）和从动轴（4）。 壳体（2）通过将上部壳体构件（20）接合到下部壳体构件（10）而形成。 下壳体构件10具有下轴承支撑部分13，上壳体20具有上轴承支承部23。 每个下轴承支撑部分（13）的开口边缘（13a）位于轴承（32,33）的中心（P1）上方。 每个下轴承支撑部分（13）的开口宽度（T1）小于轴承（32,33）的直径（D1）。 该结构抑制了在流体机械的组装操作期间轴承（32,33）与下部壳体构件（10）分离。
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公开(公告)号：US20100047104A1
公开(公告)日：2010-02-25
申请号：US12373924
申请日：2007-07-19
Applicant: Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
Inventor： Masahiro Inagaki , Shinya Yamamoto , Makoto Yoshikawa , Yuya Izawa
CPC classification number: F04C18/126 , F01C1/086 , F01C1/126 , F01C11/002 , F01C19/125 , F01C21/02 , F01C21/10 , F04C18/086 , F04C23/001 , F04C2230/60 , F04C2240/30 , F04C2240/56
Abstract: A housing (2) of a Roots pump (1) supports a drive shaft (3) and a driven shaft (4) with radial bearings (32, 33) so as to be rotatable. The housing (2) is formed by joining an upper housing member (20) to a lower housing member (10). The lower housing member (10) has lower bearing support portions (13), and the upper housing member (20) has upper bearing support portions (23). Opening edges (13a) of each lower bearing support portion (13) are positioned above the centers (P1) of the bearings (32, 33). An opening width (T1) of each lower bearing support portion (13) is smaller than the diameter (D1) of the bearings (32, 33). This structure suppresses the bearings (32, 33) from being separated from the lower housing member (10) during an assembling operation of the fluid machine.
Abstract translation: 罗茨泵（1）的壳体（2）以可旋转的方式支撑具有径向轴承（32,33）的驱动轴（3）和从动轴（4）。 壳体（2）通过将上部壳体构件（20）接合到下部壳体构件（10）而形成。 下壳体构件10具有下轴承支撑部分13，上壳体20具有上轴承支承部23。 每个下轴承支撑部分（13）的开口边缘（13a）位于轴承（32,33）的中心（P1）上方。 每个下轴承支撑部分（13）的开口宽度（T1）小于轴承（32,33）的直径（D1）。 该结构抑制了在流体机械的组装操作期间轴承（32,33）与下部壳体构件（10）分离。
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公开(公告)号：US07651324B2
公开(公告)日：2010-01-26
申请号：US11141907
申请日：2005-05-31
Applicant: Shinya Yamamoto , Makoto Yoshikawa , Takao Mishina , Mamoru Kuwahara
Inventor： Shinya Yamamoto , Makoto Yoshikawa , Takao Mishina , Mamoru Kuwahara
Abstract: A diaphragm pump for pumping a fluid includes a diaphragm and a driver. The diaphragm has a first surface and a second surface. The driver includes a support portion and is connected to the diaphragm via the support portion. The driver is reciprocated to deform the diaphragm thereby performing a pumping action. The support portion includes a first supporting surface for supporting the first surface and a second supporting surface for supporting the second surface. The support portion allows the diaphragm to slidingly move along an interval between the first and second supporting surfaces when the diaphragm is deformed.
Abstract translation: 用于泵送流体的隔膜泵包括隔膜和驱动器。 隔膜具有第一表面和第二表面。 驱动器包括支撑部分并且经由支撑部分连接到隔膜。 驱动器往复运动以使隔膜变形，从而执行泵送动作。 支撑部分包括用于支撑第一表面的第一支撑表面和用于支撑第二表面的第二支撑表面。 当隔膜变形时，支撑部分允许隔膜沿着第一和第二支撑表面之间的间隔滑动地移动。
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公开(公告)号：US20080044304A1
公开(公告)日：2008-02-21
申请号：US11891532
申请日：2007-08-09
Applicant: Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
Inventor： Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
IPC: F04C18/08
CPC classification number: F04C18/084 , F04C18/16
Abstract: A screw pump includes a housing and a pair of intermeshing screw rotors. The housing has an inlet port and an outlet port. Each rotor has a first portion whose lead angle decreases. The first portion and the housing form an inlet space and a pump space. Winding angle of the first portion has a first region and a second region. The first region is located in a predetermined range from the end on the first portion adjacent to the inlet port toward the outlet port. The second region is located adjacent to the first region. Reduction rate of the lead angle of the first portion in the first region is set smaller than that in the second region. The maximum lead angle of the first portion is set smaller than a lead angle which decreases at a constant rate in the first region and the second region.
Abstract translation: 螺杆泵包括壳体和一对相互啮合的螺杆转子。 壳体具有入口和出口。 每个转子具有引导角减小的第一部分。 第一部分和壳体形成入口空间和泵空间。 第一部分的卷绕角度具有第一区域和第二区域。 第一区域位于与入口相邻的第一部分的端部朝向出口的预定范围内。 第二区域位于第一区域附近。 第一区域中的第一部分的引导角的减小率被设定为小于第二区域的降低率。 第一部分的最大引导角被设定为小于在第一区域和第二区域以恒定速率减小的引导角。
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公开(公告)号：US08556607B2
公开(公告)日：2013-10-15
申请号：US12837575
申请日：2010-07-16
Applicant: Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
Inventor： Yuya Izawa , Shinya Yamamoto , Masahiro Inagaki , Makoto Yoshikawa
IPC: F01C21/10
CPC classification number: F04C2/16 , F04C2/123 , F04C11/005 , F04C14/02
Abstract: A screw rotor is for use in a screw pump that pumps fluid by rotation of a pair of screw rotors engaged with each other in a rotor housing. The screw rotor includes a multiple-thread portion for pump suction side and a single-thread portion for pump discharge side. The screw rotor is formed so that the tooth profile of the multiple-thread portion is connected to the tooth profile of the single-thread portion through a boundary plane that is perpendicular to the rotation axis of the screw rotor. The first curved portion coincides with the third curved portion in the boundary plane.
Abstract translation: 螺杆转子用于螺旋泵，其通过在转子壳体中彼此接合的一对螺杆转子的旋转来泵送流体。 螺杆转子包括用于泵吸入侧的多螺纹部分和用于泵排出侧的单螺纹部分。 螺杆转子形成为使得多螺纹部分的齿廓通过与螺杆转子的旋转轴线垂直的边界平面连接到单螺纹部分的齿廓。 第一弯曲部分与边界平面中的第三弯曲部分重合。
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