专利名称：Control system for an infinitely variable
transmission
发明人：Miyawaki, Motohisa申请号：EP84308545.7申请日：19841207公开号：EP0147116A1公开日：19850703
专利附图：
摘要：An infinitely variable belt-drive transmission for an engine comprises a primarypulley (24) having a hydraulically shiftable disc (24a), a secondary pulley (28) having ahydraulically shiftable disc (25a), a belt (26) engaged with both pulleys, and a hydraulic
circuit having a pump (37) for supplying oil. The transmission has a control system whichincludes a transmission ratio control valve (44) responsive to engine speed forcontrolling the oil supply and for shifting the disc (25a) of the primary pulley (24) tochange the transmission ratio, and a pressure regulator valve (43) which responds to thetransmission ratio and controls the line pressure in the hydraulic circuit. A piston (62) isslidably mounted in the hydraulic cylinder (27b) of the primary pulley (24) and a valve (61)having a solenoid (67) controls the application of line pressure to the hydraulic cylinderto shift the piston (62) so as to restrict the movement of the disc in the direction towardsthe maximum transmission ratio position.
申请人：FUJI JUKOGYO KABUSHIKI KAISHA
地址：7-2 Nishishinjuku 1-chome Shinjuku-ku Tokyo JP
国籍：JP
代理机构：Eyles, Christopher Thomas
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