专利名称：ROTOR FOR THRUST OFFSET TYPE SCREW COMPRESSOR
发明人：NISHIO TOSHIO
申请号：JP8337288
申请日：19880405邵伯龙虾>欢度春节手抄报内容
空城计读后感公开号：JPH01257785A无源之水
小试身手公开日：
行测题型及答题技巧19891013
英语音标大全
专利内容由知识产权出版社提供
摘要：PURPOSE:To restrain a blow-off phenomenon from a blow hole by forming the main portions of the first tooth profile portion and cond tooth profile portion of a male rotor with arcs having different center positions in a pitch circle and different radii respectively. CONSTITUTION:The tooth profile of a male rotor 21 consists of a first tooth profile portion and a cond tooth profile portion which are positioned only on the outside of a pitch circle. In a suction at a right angle to a rotor shaft, the main portions DE, BC of the first and cond tooth profile portions have different center positions I, H in the pitch circle 23 while being formed with arcs having different radii, respectively. On the other hand, the tooth profile of a female rotor 22 consists of a first tooth profile and a cond tooth profile positioned only inside a pitch circle 24, which the main portions of the first and cond tooth profiles being formed with the arcs of the first and cond tooth profiles of the male rotor 21 respectively, in the ction at a right angle to the rotor shaft.
申请人：MAYEKAWA MFG CO LTD
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