Invention Grant
- Patent Title: Toroidal continuously variable transmission
- Patent Title (中): 环形无级变速器
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Application No.: US12537693Application Date: 2009-08-07
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Publication No.: US08727937B2Publication Date: 2014-05-20
- Inventor: Motoki Tabuchi , Masami Sugaya
- Applicant: Motoki Tabuchi , Masami Sugaya
- Applicant Address: JP Toyota-shi
- Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee: Toyota Jidosha Kabushiki Kaisha
- Current Assignee Address: JP Toyota-shi
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2008-206102 20080808
- Main IPC: F16H15/38
- IPC: F16H15/38

Abstract:
A toroidal continuously variable transmission includes: an input disk; an output disk; a plurality of power rollers; a plurality of trunnions; an oil pump; a pressing hydraulic mechanism that moves and brings the input disk and output disk closer to each other; a shifting hydraulic mechanism that moves the trunnions forward and rearward; and a hydraulic control device that controls the pressing hydraulic mechanism and the shifting hydraulic mechanism by oil pressure. The hydraulic control device has an oil pressure regulation unit that sets an oil pressure in a shifting hydraulic line that is a hydraulic source of the shifting hydraulic mechanism to an oil pressure at which shifting control can be performed by the shifting hydraulic mechanism till the transmission of power between the input disk and output disk is interrupted when the operation of the oil pump is stopped.
Public/Granted literature
- US20100035720A1 TOROIDAL CONTINUOUSLY VARIABLE TRANSMISSION Public/Granted day:2010-02-11
Information query
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