公开(公告)号：US4678416A

公开(公告)日：1987-07-07

申请号：US738094

申请日：1985-05-24

申请人： Takahisa Hirano ,  Shoji Fukami ,  Mitsutosho Maeda

发明人： Takahisa Hirano ,  Shoji Fukami ,  Mitsutosho Maeda

IPC分类号： F04C18/02 ,  F01C1/02 ,  F01C1/04

CPC分类号： F01C1/0246

摘要： A rotary fluid machine of the type including two spiral elements, or a stationary spiral element and a revolving spiral element having identical configurations and disposed 180 degrees apart from each other in mutually nested relationship. The revolving spiral element is adapted to revolve in solar motion relationship with respect to the stationary spiral element with a radius of revolutionary motion .rho.. Both spiral elements are respectively defined in profile with a radially outer curve segment consisting of an involute curve, a radially inner curve segment consisting of another involute curve in an arc having a radius R, and an arc of a radius r connecting smoothly the radially outer curve segment and the arc having the radius R, whereby the radially inner leading end of the spiral elements incorporated may well be protected from possible damages as encountered during the operation of the machine, and the height of spiral elements may readily be increased substantially without making greater the overall outer diameter of the spiral elements, to give the machine a larger capacity.

摘要翻译： 一种包括两个螺旋元件的旋转流体机械，或具有相同构造的固定螺旋元件和旋转螺旋元件，并且以相互嵌套的关系彼此相隔180度。 旋转螺旋元件适于以相对于具有革命运动半径的固定螺旋元件的太阳运动关系旋转。 两个螺旋元件分别被限定在具有由渐开线曲线组成的径向外部曲线段的轮廓中，由具有半径R的圆弧中的另一个渐开线曲线组成的径向内部曲线段以及半径r的圆弧平滑地连接到径向外侧 曲线段和具有半径R的弧，由此可以保护并入的螺旋形元件的径向内部前端可能不会在机器的操作期间遇到可能的损坏，并且可以容易地增加螺旋元件的高度而不需要制造 更大的螺旋元件的总体外径，给机器更大的容量。