公开(公告)号：US06174151B1

公开(公告)日：2001-01-16

申请号：US09193491

申请日：1998-11-17

申请人： George A. Yarr

发明人： George A. Yarr

IPC分类号： F04C200

CPC分类号： F01C1/103 ,  Y10T137/7738

摘要： A trochoidal gear pump or engine uses a coaxial hub with the outer and/or inner rotor and an associated rolling element bearing assembly that preferably uses pre-loaded bearings to precisely set the rotational axis and/or the axial position of the rotor with which it is associated. This allows the fixed-gap clearance between the rotor surfaces and the housing surfaces or the other rotor surfaces to be set at a distance that minimizes operating fluid shear forces and/or by-pass leakage and eliminates gear tooth wear thus preserving effective chamber to chamber sealing. The device is useful in handling gaseous and two-phase fluids in expansion/contracting fluid engines/compressors and can incorporate an output shaft that accommodates an integrated condensate pump for use with Rankine cycles. A vent from the housing cavity to a lower pressure input or output port regulates built-up fluid pressure in the housing thereby optimizing the efficiency of the device by controlling bypass leakage.

摘要翻译： 摆线齿轮泵或发动机使用具有外转子和/或内转子的同轴毂，以及相关联的滚动元件轴承组件，其优选地使用预加载的轴承来精确地设定转子的旋转轴线和/或轴向位置 已关联的。 这允许转子表面和壳体表面或其它转子表面之间的固定间隙间隙被设定为使工作流体剪切力和/或旁路泄漏最小化的距离，并且消除齿轮磨损，从而保持有效的室到室 密封。 该装置可用于处理膨胀/收缩流体发动机/压缩机中的气体和两相流体，并且可以结合一个输出轴，其容纳用于兰金循环的集成冷凝泵。 从壳体腔体到低压输入或输出端口的排气口调节壳体中积聚的流体压力，从而通过控制旁路泄漏来优化设备的效率。

公开(公告)号：US06773243B2

公开(公告)日：2004-08-10

申请号：US10469083

申请日：2003-08-25

申请人： Ulrich Becher

发明人： Ulrich Becher

IPC分类号： F04C200

CPC分类号： F04C18/084 ,  F04C18/123 ,  F04C18/16 ,  F04C23/001

摘要： Rotary piston machine for compressible media, with rotary pistons sealed tight in a common housing and rotatable with one another in a controlled manner, the rotary pistons having a plurality of disk-shaped sections engaging in one another in pairs, whose thickness and/or diameter decreases in the direction of the pressure side, each disk having a surface area and a core area connected respectively by an interface area, the sector angles of the surface area and of the core area of a respective disk not being identical, the disks having various transverse profile contours periodically recurring along the piston axes and each disk being offset at an angle to the two adjacent disks of the same rotor in a such a way that these three disks have a common area section and form a chamber.

公开(公告)号：US06186756B1

公开(公告)日：2001-02-13

申请号：US09572049

申请日：2000-05-16

申请人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

发明人： Yukihiro Kojima ,  Tetsuya Sasage ,  Noboru Toda

IPC分类号： F04C200

CPC分类号： F04C29/0071 ,  F04C18/16 ,  F04C2240/60 ,  F16B2200/406 ,  Y10T403/473 ,  Y10T428/24322

摘要： A rotor 1 forming screw teeth is projectingly provided at its outer end 2 on the axis thereof with a center shaft 3. The center shaft 3 is provided at its outer end 4 with a smaller-diameter shaft 5 or a concaved fitting hole. A separate rotor shaft 6 which is to be fitted over the smaller-diameter shaft 5 or fitted into the concaved fitting hole is provided with another concaved fitting hole 7 or smaller-diameter shaft. A metal shaft around which synthetic resin is molded is formed at its peripheral surface with a spiral groove or corrugated groove in the opposite revolutional direction with respect to the revolutional direction of the screw rotor. The spiral groove is formed with smooth arc curved line connecting profiles of adjacent grooves. The shaft is provided with a step, and synthetic resin is molded around the shaft surface to form a screw rotor.

摘要翻译： 形成螺旋齿的转子1在其外端部2的轴线上以中心轴3突出地设置。中心轴3在其外端4处设置有较小直径的轴5或凹入的嵌合孔。 要安装在小直径轴5上或装配在凹形装配孔中的单独的转子轴6设置有另一个凹入的装配孔7或较小直径的轴。 在其圆周表面上形成有相对于螺杆转子的旋转方向在相反旋转方向上的螺旋形槽或波纹状槽的金属轴。 螺旋槽形成有相邻凹槽的平滑弧形曲线连接轮廓。 轴设置有台阶，合成树脂围绕轴表面模制以形成螺杆转子。

公开(公告)号：US06835054B2

公开(公告)日：2004-12-28

申请号：US10774661

申请日：2004-02-10

申请人： Shoji Morita

发明人： Shoji Morita

IPC分类号： F04C200

CPC分类号： F04C15/062 ,  F04C15/0049

摘要： A pump chamber defines a capacity increased in a first certain angle range and decreased in a second certain angle range. An intake port is open in an increase range where the pump chamber moves from a minimum capacity position to a maximum capacity position. A discharge port is open in a decrease range where the pump chamber moves from the maximum capacity position to the minimum capacity position, the discharge port being biased to the minimum capacity position. A seal land portion seals a communication between the intake port and the discharge port via the pump chamber. A reduced portion is defined between a communication portion and the pump chamber. A bypass path connects the communication portion with the discharge port. A relief valve intervened in the bypass path opens the bypass path with a pressure of the communication portion increased to or over a set pressure.

摘要翻译： 泵室限定在第一特定角度范围内增加的容量并且在第二特定角度范围内减小。 进气口在泵室从最小容量位置移动到最大容量位置的增加范围内打开。 排出口在泵室从最大容量位置移动到最小容量位置的减小范围内打开，排出口被偏压到最小容量位置。 密封陆部经由泵室密封进气口和排出口之间的连通。 在连通部和泵室之间限定缩小部。 旁通路将连通部与排出口连接。 插入在旁路中的安全阀在连通部的压力增加到设定压力以上的状态下打开旁路。

公开(公告)号：US06739850B2

公开(公告)日：2004-05-25

申请号：US10274392

申请日：2002-10-21

申请人： Hiroaki Kawasaki ,  Akihiro Kimura ,  Yoshio Ebihara

发明人： Hiroaki Kawasaki ,  Akihiro Kimura ,  Yoshio Ebihara

IPC分类号： F04C200

CPC分类号： F04C2/102 ,  F04C2/088

摘要： At a boundary area between a high-pressure portion in which a discharge port of a fuel pump is disposed and a low-pressure portion in which an intake port is disposed, a pressure relief groove extending along the boundary area is formed so as to be communicated with the outside of the pump by pressure relief hole. Alternatively, a slit is formed communicated with the outside. Accordingly, a fuel at a high-pressure area portion can be drained with reliability. Further, by communicating the above pressure relief groove with a positioning pin insertion port, a single hole can serve both as a positioning pin insertion hole and a pressure relief hole.

摘要翻译： 在设置有燃料泵的排出口的高压部与设置有吸气口的低压部之间的边界区域形成有沿着边界区域延伸的减压槽， 通过泄压孔与泵的外部连通。 或者，形成与外部连通的狭缝。 因此，可以可靠地排出高压区域部分的燃料。 此外，通过使定位销插入口连通上述卸压槽，单个孔可以用作定位销插入孔和压力释放孔。

公开(公告)号：US06186757B1

公开(公告)日：2001-02-13

申请号：US09285517

申请日：1999-04-02

申请人： Reinhard Pippes

发明人： Reinhard Pippes

IPC分类号： F04C200

CPC分类号： F04C2/102 ,  Y10T29/49242

摘要： An internal-gear machine has a casing and a running assembly accommodated in the casing and comprising a rotatably mounted pinion and an internally toothed annular gear meshing with the pinion. The annular gear is widened at its outer periphery to form a running ring which can be integral with the internally toothed part of the annular gear or a separately produced component which is non-rotatably connected to the internally toothed part.

摘要翻译： 内齿轮机具有容纳在壳体中的壳体和行进组件，并且包括可旋转地安装的小齿轮和与小齿轮啮合的内齿环形齿轮。 环形齿轮在其外周加宽以形成可与环形齿轮的内齿部分成一体的行进环或不可旋转地连接到内齿部分的另外制造的部件。

公开(公告)号：US06174149B1

公开(公告)日：2001-01-16

申请号：US09268933

申请日：1999-03-16

申请人： James W. Bush

发明人： James W. Bush

IPC分类号： F04C200

CPC分类号： F16F15/28 ,  F04C18/0215 ,  F04C23/008 ,  F04C29/0021 ,  F04C2240/807 ,  Y10T29/4924 ,  Y10T74/2183 ,  Y10T464/50

摘要： A counterweight is attached to a rotating shaft by a slip fit, combined with two axially abutting surfaces to hold the counterweight. The counterweight is preferably held at one face by a ledge formed on the shaft, and at the opposed face by a portion of the motor rotor. Circumferentially spaced abutting surfaces also hold the counterweight to cause the counterweight to rotate with the rotor. The present invention eliminates the need for separately attaching the counterweight to the shaft, and thus reduces both the complexity of assembly, and also the need for precise manufacturing tolerances for the counterweight.

摘要翻译： 配重通过滑动配合附接到旋转轴，与两个轴向邻接的表面组合以保持配重。 配重优选地通过形成在轴上的凸缘并且在电动机转子的一部分的相对面处保持在一个表面。 圆周间隔的邻接表面还保持配重以使配重与转子一起旋转。 本发明消除了将配重单独地附接到轴上的需要，并且因此降低了组装的复杂性，并且还降低了配重的精确制造公差的需要。

公开(公告)号：US06648620B2

公开(公告)日：2003-11-18

申请号：US09993605

申请日：2001-11-27

申请人： Kentaro Yamauchi ,  Yoshinori Suzuki ,  Hidetoshi Fujiwara

发明人： Kentaro Yamauchi ,  Yoshinori Suzuki ,  Hidetoshi Fujiwara

IPC分类号： F04C200

CPC分类号： F04C2/3446 ,  F01C21/10 ,  F04C15/0049

摘要： A rotary pump apparatus includes a stator housing, a pump function component, at least two discharge ports, a ring shaped pressure chamber, an outflow passage and an interception wall. The pump function component is contained in the stator housing. The discharge ports discharge the operation fluid from the pump function component, and are opened into the ring shaped pressure chamber. The pressure chamber is formed in the stator housing and defined with an outer wall and an inner wall. The outflow passage is opened in the pressure chamber. The interception wall is formed in the pressure chamber by connecting one portion of the outer wall and one portion of the inner wall.

公开(公告)号：US06481991B2

公开(公告)日：2002-11-19

申请号：US09811491

申请日：2001-03-20

申请人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

发明人： Masatoshi Takagi ,  Motoya Ito ,  Katsuhiko Kusagaya

IPC分类号： F04C200

CPC分类号： F04C11/001 ,  F04C2/102 ,  F04C11/008 ,  F04C15/0049

摘要： Two inner gears are overlapped with each other through a partition wall and are eccentrically arranged at an inner peripheral side of an outer gear, and eccentric directions of both the inner gears are shifted from each other by 180° to the opposite side. By this, loads in an outer diameter direction due to a rise in fuel pressure affect one outer gear from the two inner gears oppositely to each other by 180°, so that an eccentric load is not generated, and sliding resistance of the outer gear to a cylindrical casing becomes small. Further, the number of teeth of the outer gear is made odd, and the number of teeth of the inner gears is made even.

摘要翻译： 两个内齿轮通过分隔壁彼此重叠，并且偏心地布置在外齿轮的内周侧，并且两个内齿轮的偏心方向彼此偏移180°到相对侧。 由此，由于燃料压力上升，在外径方向上的负载使两个内齿轮的一个外齿轮相互相对旋转180°，从而不会产生偏心负载，外齿轮的滑动阻力 圆柱形壳体变小。 此外，外齿轮的齿数变得奇数，并且使内齿轮的齿数均匀。

公开(公告)号：US06264449B1

公开(公告)日：2001-07-24

申请号：US09504811

申请日：2000-02-16

申请人： Alexander Maute ,  Willi Schneider

发明人： Alexander Maute ,  Willi Schneider

IPC分类号： F04C200

CPC分类号： F04C2/084

摘要： A plastic toothed wheel for a toothed wheel pump comprises a wheel body (20) having external or internal teeth. To keep the weight of this toothed wheel as low as possible, its teeth (26) have at least one cavity (32) accessible from at least one end face of the tooth. Toothed wheel pumps having such toothed wheels for supplying and pressurizing engine oil in automotive vehicle engines avoid splashing losses caused by the cavities (32) by closing the cavities or filling them up with a temperature and media resistant foam material (66).

摘要翻译： 用于齿轮泵的塑料齿轮包括具有外齿或内齿的轮体（20）。 为了保持该齿轮的重量尽可能低，其齿（26）具有至少一个从齿的至少一个端面可接近的空腔（32）。 具有用于在汽车发动机发动机中供应和加压发动机油的齿轮的齿轮泵避免了通过关闭空腔或用耐温和耐媒质的泡沫材料（66）填充空腔而造成的空腔（32）的损失。