GEAR PUMP 申请(专利号： JP20080321017 专利号：JP2010144570A 主分类号： F04C11/00 申请权利人： IHI CORP 公开国代码：JP 优先权国家： JP 摘要： PROBLEM TO BE SOLVED: To finely control a workload in a gear pump.;SOLUTION: This gear pump includes: a gear group 1 composed of not less than four even-numbered gears 1a to 1d annularly arranged with adjacent gears engaged with each other; a first casing 2 surrounding the outside of the gear group 1 and increasing the pressure of fluid within the clearance areas R between the gears 1a to 1d and the first casing; a second casing 3 arranged in a center area surrounded by the gear group 1 and increasing the pressure of the fluid within clearance areas R between the gears 1a to 1d and the second casing; an inlet flow passage 4 supplying the fluid to the clearance areas R; and a delivery flow passage 5 delivering the fluid from the clearance areas R.;COPYRIGHT: 申请日：2008-12-17 公开公告日： 2010-07-01 分类号： F04C11/00; F04C14/02; F04C14/26; F04C15/00 发明设计人： MATSUNAGA YASUSHI; MASUDA AKITOSHI; KIMURA TATSUHIKO 申请国代码： JP 优先权： 20081217 JP 2008321017 摘要附图：
