公开(公告)号：US4824346A

公开(公告)日：1989-04-25

申请号：US244961

申请日：1981-03-18

申请人： Masaharu Hiraga ,  Kiyoshi Terauchi ,  Kiyosh Miyazawa ,  Seiichi Sakamoto

发明人： Masaharu Hiraga ,  Kiyoshi Terauchi ,  Kiyosh Miyazawa ,  Seiichi Sakamoto

IPC分类号： F04C18/02 ,  F01C1/02 ,  F01C17/06 ,  F01C21/00 ,  F04C29/00 ,  F01C1/04 ,  F01C19/00

CPC分类号： F01C21/003 ,  F01C1/0215 ,  F01C17/063 ,  F01C21/008 ,  F04C29/0057 ,  F04C2240/807

摘要： A scroll-type fluid displacement apparatus, in particular, a compressor unit is disclosed. The unit includes a housing with a fluid inlet port and a fluid outlet port. A fixed scroll with first end plate and first spiral element is fixedly disposed in the housing. An orbiting scroll with a second end plate and a second spiral element is disposed for orbiting motion in the housing. The first and second spiral elements interfit with one another at an angular offset to make a plurality of line contacts to define at least one pair of sealed off fluid pockets. A drive pin extends from an inner end of a drive shaft. The orbiting scroll has a boss which rotatably supports a bushing. An eccentric hole is formed in the bushing and the drive pin is received within this hole. The center of the drive pin is located on an opposite side to the center of the drive shaft with regard to a straight line, which passes through the center of the bushing and is perpendicular to a connecting line passing through the center of the drive shaft and the center of the bushing. The center of the drive pin also is beyond the connecting line in the direction of rotation of the drive shaft. The bushing has a balance weight for cancelling a centrifugal force which arises because of the orbiting motion of the scroll member and bushing. Dynamic balance is accomplished by the use of a pair of balance weights affixed to the drive shaft for generating a moment of the same amount, but opposite in direction, to the moment generated by a force due to the interaction of the centrifugal force of the orbiting parts and the first balance weight.

摘要翻译： 公开了一种涡旋式流体排量装置，特别是压缩机单元。 该单元包括具有流体入口和流体出口的壳体。 具有第一端板和第一螺旋元件的固定涡卷固定地设置在壳体中。 具有第二端板和第二螺旋元件的绕动涡卷被设置用于在壳体中的轨道运动。 第一和第二螺旋元件以角度偏移彼此相互配合，以形成多个线接触件以限定至少一对密封的流体袋。 驱动销从驱动轴的内端延伸。 绕动涡旋件具有可旋转地支撑衬套的凸台。 衬套中形成有偏心孔，驱动销被容纳在该孔内。 驱动销的中心相对于直线穿过驱动轴的中心的相对侧，该直线穿过衬套的中心并且垂直于穿过驱动轴的中心的连接线，并且 衬套的中心。 驱动销的中心也在驱动轴的旋转方向上超出连接线。 衬套具有用于抵消由于涡旋构件和衬套的旋转运动而产生的离心力的平衡重。 通过使用固定到驱动轴上的一对平衡重来实现动平衡，以产生相同量的力矩，但是与方向相反的力矩相对于由于轨道运动的离心力的相互作用而产生的力 零件和第一平衡重。