公开(公告)号：EP0193727A3

公开(公告)日：1988-06-08

申请号：EP86101079

申请日：1986-01-28

申请人： ALLIED CORPORATION

发明人： Meyer, Malina ,  Abe, Feldman

IPC分类号： G01C19/12

CPC分类号： G01C19/12 ,  Y10T74/1207 ,  Y10T74/1282

摘要： A gas gyroscope (11) is provided with an aspirator pump (71) in order to evacuate gas from the main chamber (19) of the gyroscope (11). The evacuation of gas reduces windage and other air friction encountered by the gyroscope's rotor (21) and thereby extends the rundown time of the gyroscope. The aspirator (71) may be energized by a dedicated compressed gas source such as a compressed gas chamber 91. Alternatively, the aspirator (71) may be provided with ram air or bleed perpellant gases.