公开(公告)号：US4441863A

公开(公告)日：1984-04-10

申请号：US342808

申请日：1982-01-26

申请人： Teruyuki Hotta ,  Yoshiki Kurokawa ,  Eiichi Nagasaku ,  Masao Yasunaga

发明人： Teruyuki Hotta ,  Yoshiki Kurokawa ,  Eiichi Nagasaku ,  Masao Yasunaga

IPC分类号： F04B49/02 ,  F04B49/06 ,  F04C25/00 ,  F04C28/16

CPC分类号： F04C28/16

摘要： A variable discharge rotary compressor has a housing, a rotor disposed therein and vanes mounted on the rotor to cooperate with the housing and the rotor to define variable volume working chambers disposed close to and separated from an intake chamber by an end wall in which a communication passage is formed to communicate the working chambers with the intake chamber. The communication passage is located at a point where the working chambers are in their compression strokes. A valve is disposed in the communication passage to control the communication between the compression chambers and the intake chamber and is operative to communicate the compression chambers with the intake chamber to permit a part of the fluid in the compression chambers to be returned therefrom back into the intake chamber when the discharge of the compressor exceeds a predetermined discharge requirement. The communication passage is of a very short length so that the fluid passing through the communication passage toward the intake chamber can be prevented from being unduly heated by the heat of the compressor body.

摘要翻译： 可变排放旋转压缩机具有壳体，设置在其中的转子和安装在转子上的叶片，以与壳体和转子配合以限定通过端壁靠近和与进气室分离的可变容积的工作室，其中通信 形成通道以将工作室与进气室连通。 连通通道位于工作室处于其压缩冲程的点处。 阀设置在连通通道中以控制压缩室和进气室之间的连通并且可操作地使压缩室与进气室连通，以允许压缩室中的一部分流体从其返回到 当压缩机的排放超过预定的排放要求时，进气室。 连通通道具有非常短的长度，使得可以防止通过连通通道朝向进气室的流体被压缩机主体的热量过度加热。

公开(公告)号：US4403929A

公开(公告)日：1983-09-13

申请号：US229852

申请日：1981-01-30

申请人： Eiichi Nagasaku ,  Masao Yasunaga ,  Kimihiro Kato

发明人： Eiichi Nagasaku ,  Masao Yasunaga ,  Kimihiro Kato

IPC分类号： F04C18/344 ,  F01C21/08 ,  F04C29/02

CPC分类号： F01C21/0872 ,  F04C29/02 ,  F04C29/026

摘要： A rotary compressor including a housing having therein a cylindrical bore, and end plates closing opposite ends of the bore and supporting a rotary shaft supporting in turn a rotor formed with a plurality of circumferentially spaced vane grooves. A vane is slidably received in each vane groove and cooperates with the adjacent vane to define therebetween a working chamber. An oil groove is formed on a surface portion of one of the end plates which surface portion is located opposite to a path along which the bottoms of the vane grooves pass, at least in a position where the working chamber has its volume increased. A cover is attached to the one end plate to define therebetween a discharge chamber receiving therein fluid compressed by the vanes. A passage communicates an oil revervoir defined at the bottom of the discharge chamber and the axial end face of the shaft opposite to the one end plate with each other. The oil in the oil reservoir is introduced into the oil groove through the passage, along the outer periphery of the shaft, and through a gap between the rotor and the one end plate.

摘要翻译： 一种旋转压缩机，其包括具有圆柱形孔的壳体和封闭所述孔的相对端的端板，并且支撑旋转轴，所述旋转轴依次支撑形成有多个周向间隔开的叶片槽的转子。 叶片可滑动地容纳在每个叶片槽中，并与相邻叶片配合以在其间限定工作室。 至少在工作室体积增加的位置上，在一个端板的表面部分上形成油槽，该表面部分位于与叶片槽的底部通过的路径相对的表面部分。 一个盖板附接到一个端板上，以在其间限定一个排放室，其中容纳有被叶片压缩的流体。 通道将排出室底部限定的油回流和与一个端板相对的轴的轴向端面相互连通。 储油器中的油沿着轴的外周通过通道，并通过转子和一个端板之间的间隙被引入到油槽中。

公开(公告)号：US4447196A

公开(公告)日：1984-05-08

申请号：US271382

申请日：1981-06-08

申请人： Eiichi Nagasaku ,  Kimihiro Kato ,  Masao Yasunaga

发明人： Eiichi Nagasaku ,  Kimihiro Kato ,  Masao Yasunaga

IPC分类号： F04C18/344 ,  F01C21/08 ,  F04C28/06 ,  F04C29/02 ,  F04C18/00 ,  F04C29/10

CPC分类号： F04C28/06 ,  F01C21/0872 ,  F04C29/02

摘要： A vane type rotary compressor has a housing and end plates secured thereto to cooperate therewith to define a cylindrical bore in which a rotor is eccentrically mounted for rotation with vanes slidably mounted in vane grooves formed in the outer periphery of the rotor. A lubricant groove is formed in the inner surface of one end plate and so disposed as to be brought into communication with the inner end portions of the vane grooves pertaining to vanes defining working chambers when in their intake phases. The lubricant groove is connected by a passage with a discharge chamber of the compressor so that fluid pressure is fed into the inner end portions of the vane grooves to urge the vanes into sealing engagement with the inner peripheral surface of the cylindrical bore. A valve is provided to disconnect the discharge chamber from the lubricant groove during normal compression operation of the compressor.

摘要翻译： 叶片式旋转压缩机具有固定在其上的壳体和端板，以与其配合以限定圆柱形孔，其中转子偏心地安装以便转动，叶片可滑动地安装在形成在转子外周的叶片槽中。 润滑剂槽形成在一个端板的内表面中，并且设置成在其进气阶段中与限定工作室的叶片相关联的叶片槽的内端部连通。 润滑剂槽通过具有压缩机的排出室的通道连接，使得流体压力被供给到叶片槽的内端部，以促使叶片与圆柱孔的内周表面密封接合。 在压缩机的正常压缩操作期间，提供阀以将排放室与润滑剂槽断开。