-
公开(公告)号:US5018948A
公开(公告)日:1991-05-28
申请号:US469457
申请日:1990-04-09
申请人: Lars Sjte,uml/o/ holm , Stig Ludin
发明人: Lars Sjte,uml/o/ holm , Stig Ludin
CPC分类号: F04C28/125
摘要: The invention relates to a rotary displacement compressor having volume ratio regulation. A connection channel (8,9,10) connects the working space of the compressor to the pressure channel (5). In the channel (8,9,10) there is provided means (13) for sensing the direction of flow through the channel. The direction of flow is an indication of whether there is over or under compression. Signals from the flow direction sensing means (13) affect the position of a movable edge (29) of the outlet port (32) so that this edge (29) will move to a position where the internal compression complies with the outlet pressure. By using the direction of flow as the governing parameter for the volume ratio regulation instead of the pressure difference or the power consumption of the prime mover according to known technique, a more accurate adaption of the volume ratio to the outlet pressure is achieved.
摘要翻译: PCT No.PCT / SE88 / 00533 Sec。 371日期1990年04月9日 102(e)日期1990年04月9日PCT提交1988年10月13日PCT公布。 第WO89 / 03482号公报 日本1989年4月20日。本发明涉及一种具有体积比调节的旋转排量压缩机。 连接通道(8,9,10)将压缩机的工作空间连接到压力通道(5)。 在通道(8,9,10)中,提供了用于感测通过通道的流动方向的装置(13)。 流动方向是指是否存在过压或过压。 来自流动方向检测装置(13)的信号影响出口(32)的可动边缘(29)的位置,使得该边缘(29)将移动到内部压缩符合出口压力的位置。 通过使用流动方向作为体积比调节的调节参数,而不是根据已知技术的原动机的压力差或功率消耗,实现了体积比与出口压力的更准确的适应性。