序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
1 用于吸轻气体的泵站以及泵站的使用 CN201380067683.6 2013-12-06 CN104870815A 2015-08-26 迪尔克·席勒; 丹尼尔·施奈登巴赫; 托马斯·德赖费特
一种用于吸轻气体的泵站,所述泵站具有:与待抽真空的腔室(10)连接的干燥压缩的第一泵(12)以及与干燥压缩的所述第一泵(12)连接的干燥压缩的第二泵(14)。泵站同样具有其它的与这些泵并联地或串联地设置的干燥压缩的泵。为了避免由于设有油密封的泵或者由于提供吹扫气体而引起对轻气体的污染,根据本发明,其是干燥压缩的泵,所述干燥压缩的泵相对于周围环境是气密密封的,使得能够在待抽真空的腔室(10)中产生低的过程压强。
2 METHOD FOR COMPRESSION OF AMMONIA SYNTHESIS GAS AND RECYCLE GAS FOR THE PRODUCTION OF AMMONIA BY SCREW COMPRESSORS US15832220 2017-12-05 US20180093898A1 2018-04-05 Derek Carlton Lennon
A method for producing ammonia may be provided. The method may include supplying ammonia synthesis gas to a synthesis gas screw compressor and compressing the synthesis gas. The compressed synthesis gas may be joined with a flow of recycle gas compressed in a recycle gas screw compressor. The compressed combined flow may then be introduced to an ammonia reactor. The ammonia reactor may discharge ammonia, purge gas, and unconverted gas, which may be the recycle gas.
3 Compression of ammonia synthesis and recycle gas US14987779 2016-01-05 US20170190590A1 2017-07-06 Derek Carlton Lennon
A method of producing ammonia by the compression of the synthesis and recycle gas by screw compressors enabling efficient small ammonia plants to be designed.
4 HYDROGEN CIRCULATION PUMP FOR FUEL CELL US15935340 2018-03-26 US20180283378A1 2018-10-04 Takayuki HIRANO; Daisuke MASAKI; Tatsuyuki HOSHINO; Shintaro KASHIWA; Naoki TAKANI
A hydrogen circulation pump for a fuel cell includes a housing, rotary shafts, and two-lobe rotors. Each of the rotors has a configuration defined by the profile defined by an arc having a radius R and extending from apex end to a first transition point, an involute curve extending from the first transition point to a second transition point, and an envelope curve formed continuously with the involute curve from the second transition point to the bottom end based on a basic circle having a radius r′. A distance between the apex ends of the lobe portions of each of the rotors is D. A distance between the axes of the pair of the rotary shafts is L. The radius R is set in {(√2)/16}πL
5 Fluid machine US11002017 2004-12-02 US20050123415A1 2005-06-09 Tatsuyuki Hoshino; Toshiro Fujii; Atsuhiro Ishida
A fluid machine includes a motor and a motor housing. The motor housing defines a motor chamber for accommodating the motor. The motor chamber is filled with inert gas. A rotor rotates in accordance with rotation of the motor. A pump housing defines a pump chamber for accommodating the rotor. A dividing wall is located between the pump housing and the motor housing. The pump housing and the motor housing are attached to each other via the dividing wall. Therefore, water is prevented from being generated in the motor chamber even if fluid that contains hydrogen leaks from the pump chamber to the motor chamber.
6 PUMPSTAND ZUM PUMPEN LEICHTER GASE SOWIE VERWENDUNG DES PUMPSTANDES EP13805822.7 2013-12-06 EP2935887A1 2015-10-28 SCHILLER, Dirk; SCHNEIDENBACH, Daniel; DREIFERT, Thomas
A pumping unit for pumping light gases has a first dry vacuum pump (12) which is connected to the chamber (10) to be evacuated and a second dry vacuum pump (14) which is connected to the first dry vacuum pump (12). The pumping unit likewise has further dry vacuum pumps which are arranged in parallel or in series with respect to said pumps. According to the invention, they are dry vacuum pumps in order to avoid contamination of the light gases on account of the provision of oil-sealed pumps or on account of the provision of purge gas, which dry vacuum pumps are sealed hermetically with respect to the surroundings, with the result that low process pressures can be generated in the chamber (10) to be evacuated.
7 PUMPSTAND ZUM PUMPEN LEICHTER GASE SOWIE VERWENDUNG DES PUMPSTANDES EP13805822.7 2013-12-06 EP2935887B1 2018-10-10 SCHILLER, Dirk; SCHNEIDENBACH, Daniel; DREIFERT, Thomas
8 燃料電池用素循環ポンプ JP2017064867 2017-03-29 JP2018168714A 2018-11-01 平野 貴之; 正木 大輔; 星野 辰幸; 柏 真太郎; ▲高▼荷 直樹
【課題】噛み音を生じず、より優れた容積効率を発揮可能な燃料電池用水素循環ポンプを提供する。
【解決手段】本発明の燃料電池用水素循環ポンプでは、第1、2ロータ25、27の外形線は、頂端P1から第1切替点P2までが半径Rの円弧25cからなり、第1切替点P2から第2切替点P3までが半径rの基礎円に基づくインボリュート曲線25dからなり、第2切替点P3から底端P4までが半径r’の基礎円の包絡線25eからなる。第1、2ロータ25、27における頂端P1から頂端P1までの距離はDであり、半径r’は、π/(4√2)L 【選択図】図2
9 Fluid compressor JP2003406052 2003-12-04 JP2005163713A 2005-06-23 HOSHINO TATSUYUKI; FUJII TOSHIRO; ISHIDA ATSUHIRO
<P>PROBLEM TO BE SOLVED: To provide a fluid compressor capable of preventing generation of water in a motor chamber even if fluid containing hydrogen flows into the motor chamber from a pump chamber side and preventing deterioration in performance as the fluid compressor. <P>SOLUTION: A motor housing 11 and a pump housing 14 are integrally assembled through a partition wall 12 and a bearing block 16, and a driving shaft 23 of an electric motor 29 in the motor chamber 13 is connected with a driving rotor 33 in a pump chamber 17 so as to pass through the partition wall 12 and the bearing block 16. The motor chamber 13 is filled with inactive gas G. Consequently, even if hydrogen off gas flows into the motor chamber 13 from the pump chamber 17 side through a passing through section, water is not generated by reaction in the motor chamber 13 because air (oxidizer gas) does not exist in the motor chamber 13. <P>COPYRIGHT: (C)2005,JPO&NCIPI
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