公开(公告)号：US5074768A

公开(公告)日：1991-12-24

申请号：US678521

申请日：1991-03-28

申请人： Hisato Kawamura ,  Hayato Ikeda ,  Satoshi Umemura ,  Masakazu Ohbayashi

发明人： Hisato Kawamura ,  Hayato Ikeda ,  Satoshi Umemura ,  Masakazu Ohbayashi

IPC分类号： F04B27/08 ,  F04B27/10 ,  F04B39/10

CPC分类号： F04B27/1009 ,  F04B39/1073 ,  Y10T137/784

摘要： A piston compressor having cylinder blocks, each defining cylinder bores in which a piston is axially reciprocally arranged. Front and rear housings are connected to the cylinder blocks via valve port plates, so that compression chambers are formed between the valve port plates and the cylinder blocks and inlet and outlet chambers are formed between the valve port plates. The valve port plates form inlet and outlet ports for each of the compression chambers and inlet valves and outlet valves formed as thin resilient web members are provided for the inlet and outlet ports, respectively, to control the feeding and discharge of the gas, respectively. The valve port plates having, on the surfaces thereof facing the outlet valve around the inlet ports, a roughened area having a surface roughness value R.sub.z of between 10 to 25 .mu.m and an average spacing value L of between to 50 to 100 .mu.m.

摘要翻译： 一种活塞式压缩机，其具有气缸体，每个气缸体限定气缸孔，其中活塞轴向往复配置。 前壳体和后壳体通过阀口板连接到气缸体，使得在阀口板和气缸体之间形成压缩室，并且在阀口板之间形成入口和出口室。 阀口板形成用于每个压缩室和入口阀的入口和出口，分别为入口端口和出口端口形成为薄的弹性腹板构件的出口阀，以分别控制气体的进料和排出。 阀口板在其面向入口端口处的出口阀的表面上具有表面粗糙度值＆lt; 10bar至25μm之间的平均间隔值＆lt;上升＆amp; L＆gt;在50至100μm之间的粗糙区域 m。

公开(公告)号：US5078582A

公开(公告)日：1992-01-07

申请号：US636772

申请日：1991-01-02

申请人： Masakazu Ohbayashi ,  Hayato Ikeda ,  Satoshi Umemura ,  Hisato Kawamura

发明人： Masakazu Ohbayashi ,  Hayato Ikeda ,  Satoshi Umemura ,  Hisato Kawamura

IPC分类号： F04B39/10

CPC分类号： F04B39/10 ,  F04B39/1066 ,  F04B39/1073 ,  Y10T137/784

摘要： A valve plate accommodated in a reciprocatory piston type compressor and arranged between an axial end of a cylinder block provided with a plurality of cylinder bores in which a plurality of double-headed pistons are reciprocated to compress a refrigerant gas, and a housing member provided with a suction chamber and a discharge chamber. The valve plate is provided with a plurality of suction ports communicating between the suction chamber and the plurality of cylinder bores and openably closed by suction valves, and a plurality of discharge ports communicating between the discharge chamber and the plurality of cylinder bores of the cylinder block. The valve plate is provided with surface portions extended around each of the discharge ports to be cooperable with the spring steel discharge valves for opening and closing the discharge ports, and formed to have 10 through 20 Rz surface roughness and a Vicker's hardness of 120 through 450.