公开(公告)号：US20070163840A1

公开(公告)日：2007-07-19

申请号：US11670673

申请日：2007-02-02

申请人： Yoshimitsu SEKIYA ,  Kiyoshi TANAKA ,  Shuji FUKANO ,  Hironori NAKAI ,  Yoshifusa KUBOTA ,  Teiji SHOZU

发明人： Yoshimitsu SEKIYA ,  Kiyoshi TANAKA ,  Shuji FUKANO ,  Hironori NAKAI ,  Yoshifusa KUBOTA ,  Teiji SHOZU

IPC分类号： F01M1/00

CPC分类号： F04C29/021 ,  F04C18/16 ,  F04C29/02 ,  F04C29/025 ,  F04C29/026 ,  F04C29/042 ,  F04C2240/56

摘要： An oil refrigeration screw compressor being applied to a refrigeration system etc., in which the problem of strength reduction of a bearing material under high temperatures and that of lifetime reduction of the bearing material due to viscosity lowering of lubricant are solved. A lubricant supply system to a compressor body is divided into a bearing oil supply system for supplying lubricant to each bearing of the compressor body at low pressure and into a temperature control oil supply system for supplying lubricant into the compressor body at high pressure. The bearing oil supply system is a closed circuit oil supply system comprising an oil supply tank, an oil cooler, and an oil supply pump, and the temperature control oil supply system is a closed circuit oil supply system comprising an oil separator and an oil cooler.

摘要翻译： 一种应用于制冷系统等的油冷冻螺杆式压缩机，其中解决了高温下轴承材料的强度降低和由于润滑剂的粘度降低引起的轴承材料寿命缩短的问题。 向压缩机体的润滑剂供给系统分为用于在低压下向压缩机主体的各轴承供给润滑剂的轴承供油系统和用于在高压下向润滑剂体供给润滑剂的温度控制供油系统。 轴承供油系统是包括供油箱，油冷却器和供油泵的闭路供油系统，温度控制供油系统是一种闭路供油系统，包括油分离器和油冷却器 。

公开(公告)号：US20080253914A1

公开(公告)日：2008-10-16

申请号：US12111624

申请日：2008-04-29

申请人： Yoshifusa KUBOTA ,  Yoshiyuki KOBAYASHI ,  Shigeru MUTA ,  Yasuaki ENDO

发明人： Yoshifusa KUBOTA ,  Yoshiyuki KOBAYASHI ,  Shigeru MUTA ,  Yasuaki ENDO

IPC分类号： F01C19/00 ,  F04C27/00 ,  F04C18/107

CPC分类号： F04C29/0007 ,  F04C18/16 ,  F04C29/028 ,  F04C29/12 ,  F04C2240/10

摘要： A liquid injection type screw compressor in which, in a compression stroke of an working space formed by male and female rotors, liquids such as oil or water is prevented from leaking from the high pressure working space to a gas inlet side, suction resistance of gas sucked from the gas inlet to a rotor casing is reduced to improve volumetric efficiency, and shape forming of the casing is simplified.The liquid injection screw compressor has the male and female rotor pair of screw rotors, the rotor casing (1a, 1b) having a bore for receiving the rotors, a gas suction opening and a gas outlet that are provided in both end sections of the casing and communicate with the bore, and a lip section (4) projected from a bore surface (2) positioned more on the upstream side than a suction seal line (5) of the casing in order to prevent a back flow of the liquid from the bore surface toward the gas inlet side. The lip section (4) is positioned in a region surrounded by the suction seal line (5) and a line separated by a distance of one screw pitch of the rotors from the suction closure line (5) to the suction opening side.

摘要翻译： 一种液体注射式螺杆式压缩机，其特征在于，在由阳，阴转子形成的工作空间的压缩行程中，防止诸如油或水的液体从高压工作空间泄漏到气体入口侧，气体的吸入阻力 从气体入口吸入转子壳体减少以提高体积效率，并简化了壳体的形状。 液体注射螺杆式压缩机具有阳转子和阴转子对的螺杆转子，具有用于接收转子的孔的转子壳体（1a，1b），气体吸入口和气体出口设置在两个端部 所述壳体与所述孔连通，以及从位于所述壳体的吸入密封线（5）的上游侧的孔表面（2）突出的唇部（4），以防止所述液体的反向流动 从孔表面朝向气体入口侧。 唇部（4）位于由吸入密封线（5）围绕的区域中，并且将离开吸入闭合线（5）的一个螺杆间距距离分隔开至吸入口侧。