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1. 发明授权

US4076467A Specially reinforced flexible tube pumping chamber 失效
标题翻译：特殊增强柔性管抽气室
公开(公告)号：US4076467A
公开(公告)日：1978-02-28
申请号：US653392
申请日：1976-01-29
申请人： Jan Edvard Persson
发明人： Jan Edvard Persson
IPC分类号： F04B43/00 , F04B43/08 , F04B43/10 , F04B47/06 , F04B11/00 , F04B45/06
CPC分类号： F04B43/0072 , F04B43/084
摘要： A pump comprises a tubular resilient pump element alternately extended and relaxed for longitudinal deformation and reinforced by means of filaments arranged in helices, preferably with different helices of opposite hands present, whose pitch angle is other than arccot .sqroot.2 so longitudinal deformation will result in volumetric changes. Inlet and outlet valves ensure unidirectional flow through the pump element.To smooth out flow a similarly constructed accumulator element, whose reinforcement pitch angle is chosen with a value such that the pump and accumulator pitch angles are on opposite sides of arccot .sqroot.2, is arranged to undergo simultaneous and similarly directed longitudinal deformation and to have a volumetric change of opposite sign, and preferably half the value, with regard to that of the pump element whereby during the inlet stroke of the pump element the accumulator element, which communicates with the discharge flow path from the pump element, will advance a proportion, preferably half, of the previous discharge stroke of the pump element.
摘要翻译：泵包括管状弹性泵元件，其交替地延伸和松弛用于纵向变形，并且通过布置成螺旋状的细丝加强，优选地具有不同螺旋的相对手的螺旋，其间距角不同于弧形2ROOT 2，因此纵向变形将导致体积变化。入口和出口阀确保单向流动通过泵元件。

2. 发明授权

US3640649A Screw rotors 失效
标题翻译：螺旋转子
公开(公告)号：US3640649A
公开(公告)日：1972-02-08
申请号：US3640649D
申请日：1969-09-23
申请人： PERSSON JAN EDVARD
发明人： PERSSON JAN EDVARD
IPC分类号： F04C2/12 , B23F15/08 , F01C1/08 , F01C1/16 , F04C18/08 , F04C18/16 , F03C3/00
CPC分类号： F01C1/084 , B23F15/08 , F01C1/16 , F04C18/084
摘要： A gate screw rotor forming one part of a set of screw rotors for a screw rotor machine which has a helical sealing ridge at the intersection between a first concavely curved flank of a helical thread and an arcuate crest portion of the profile whereas the said crest portion merges in a second concavely curved flank of the thread with a rounded profile portion. The gate rotor is cut by means of a cutter having blades each one of which cut the entire profile of the threads from the leading side of said ridge through the bottom of the groove to the trailing side of the ridge. The main rotor of a screw rotor set for such a machine may be manufactured in similar way.
摘要翻译：形成用于螺旋转子机的一组螺杆转子的一部分的闸螺杆转子，其在螺旋螺纹的第一凹曲面和轮廓的弓形部分之间的相交处具有螺旋形密封脊，而所述顶部在螺纹的第二凹形弯曲的侧面中合并有圆形轮廓部分。门转子通过具有刀片的切割器切割，每个切割刀都切割从所述脊的前侧通过槽的底部到脊的后侧的螺纹的整个轮廓。用于这种机器的螺杆转子组的主转子可以以类似的方式制造。

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