专利名称：Capacity type vacuum blower
发明人：川村 毅，古田 拓己，塩川 篤志，柳澤 清司
申请号：JP2006507672
申请日：20040318
公开号：JP2006520873A
公开日：
20060914
香椎由宇专利附图：
摘要：The present invention relates to a positive-displacement vacuum pump for evacuating a gas by rotating two rotors synchronously in opposite directions in a non-contact manner. A positive-displacement vacuum pump according to the present
invention includes two rotational shafts (11a, 11b) which are synchronously rotatable in opposite directi
ons, a pair of multistage rotors (12, 12) provided on the rotational shafts (11a, 11b), respectively, a rotor casing (14) for housing the pair of multistage rotors (12,
12), a plurality of bearings (21) for rotatably supporting the rotational shafts (11a, 11b), a bearing casing (23) for housing the bearings (21), a cooling mechanism (25) for cooling the bearing casing (23), and a seal member (27) disposed near the bearings (21). The bearings
(21) and the seal member (27) are cooled by the cooling mechanism (25).
申请人：株式会社荏原製作所
地址：東京都大田区羽田旭町１１番１号
国籍：JP
代理人：渡邉 勇，堀田 信太郎，小杉 良二，森 友宏更多信息请下载全文后查看