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专利名称:Control system for an infinitely variable
transmission
发明人:Yoshihiko Morimoto申请号:US06/7974申请日:19851108公开号:US046728A公开日:19870616
摘要:An infinitely variable transmission comprises a drive pulley having a hydraulicallyshiftable disc, a driven pulley having a hydraulically shiftable disc, and a belt engaged withboth pulleys. The system has a pressure oil circuit having a line pressure control valvehaving a spool for controlling line pressure, and a transmission ratio control valve havinga spool for controlling the pressurized oil to change the transmission ratio. A firstelectromagnetic valve is provided for controlling control pressure applied to the spoolof the line pressure control valve in accordance with desired transmission ratio andengine torque, and a second electromagnetic valve is provided for controlling controlpressure applied to the spool of the transmission ratio control valve in accordance withthe desired transmission ratio and actual transmission ratio.
申请人:FUJI JUKOGYO KABUSHIKI KAISHA
代理人:Martin A. Farber
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