Patent
Belt type continuously variable transmission
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TLDR
In this article, the gear shift control oil is supplied to the pulley oil chamber of the driven pulley mounted on the output shaft of the belt type continuously variable transmission through a feed pipe, oil holes of a plug, an oil groove, oil hole of an output shaft and oil hole on the movable pulley half.Abstract:
In a belt type continuously variable transmission, the oil for the canceler oil chamber and the oil for lubricating the endless belt are commonly used to reduce the required amount of oil to be supplied. The gear shift control oil is supplied to the pulley oil chamber of the driven pulley mounted on the output shaft of the belt type continuously variable transmission through a feed pipe, oil holes of a plug, an oil groove, oil holes of the output shaft and oil holes of the movable pulley half. The lubricating oil supplied to a first in-shaft oil chamber of the output shaft is further supplied through the oil holes of the output shaft to the canceler oil chamber of the driven pulley and also from the first in-shaft oil chamber through a throttle in the plug, the second in-shaft oil chamber and the oil holes of the output shaft to the endless belt.read more
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Patent
Belt-type continuously variable transmission
Abstract: In a belt type continuously variable transmission in which a pulley shaft (SP) is supported by bearings (31, 32) provided at two positions that are apart from each other in an axial direction of the pulley shaft (SP) and a supply oil passage for supplying hydraulic fluid to a pulley hydraulic chamber (40A, 40B) includes a radial direction oil passage (SPB) that is formed in the pulley shaft (SP,), the radial direction oil passage (SPB) is formed on an outside of an area between the above-mentioned two positions. Also, one of the bearings (32) is provided near the radial direction oil passage (SPB) and on an outer surface side of a cylinder member (70) whose inner surface side forms the pulley hydraulic chamber (40B) for a movable sheave (38) that is fixed to the pulley shaft (SP). With this structure, concentration of stress on the radial direction oil passage can be avoided, and therefore strength of the pulley shaft can be secured.
Patent
Belt for continuously variable transmission
TL;DR: In this paper, a belt for continuously variable transmission comprising a metal element (32) having a locking edge (40) between a principal plane (38) and an inclined plane (41) on the front side of the metal element in the forward running direction and a ring slot (35), to which a metal ring assembly (31) is press-fitted, between a main body part and an ear part, is specified correctly so that a Vr < Vg < Vs is established.
Patent
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Continuously and/or infinitely variable transmissions and methods therefor
Matthew R. Bazyn,Jeremy Carter,Charles B. Lohr,Curtis W Malone,Loren T. Mcdaniel,Peter D. Poxton +5 more
TL;DR: An infinitely variable transmission (IVT) has a rotatable input shaft arranged along a longitudinal axis of the transmission as discussed by the authors, where the input shaft is adapted to supply a lubricant to the interior of transmission.
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Patent
Belt type continuously variable transmission for vehicle
TL;DR: In this paper, a hydraulic pressure controller is provided between a hydraulic actuator for changing the effective radii of a drive V-pulley mounted on an input shaft and an output shaft and a hydraulic pump is provided for supplying hydraulic pressure.
Patent
Hydraulic control system for a V-belt transmission
Shoji Yokoyama,Shiro Sakakibara +1 more
TL;DR: In this article, the reduction ratio control mechanism includes conduits for conducting the working fluid of a throttle pressure to the pressure chambers of the Reduction Ratio Control valve and two solenoid valves adapted to drain the corresponding pressure chambers, respectively, when actuated.
Patent
Pulley device for continuously variable transmission
TL;DR: In this article, a pulley device includes a moveable conical pulley component which is moveable to a stationary conical component by a servo motor, and an auxiliary piston is received in the auxiliary cylinder.
Patent
Hydraulic control system for a belt drive continuously-variable speed transmission
TL;DR: In this article, a hydraulic control system for a belt drive continuously-variable speed transmission comprising a continuously variable speed transmission means including a primary variable-pitch pulley having a fixed pulley flange fixed to an input shaft and a movable pulley fange adapted to be axially slidable on said input shaft, and a secondary variable pitch pulley with a fixed pclange fixed on an output shaft and an endless belt interconnecting said primary and said secondary variable pitch pulleys; and an hydraulic control circuit including hydraulic servomechanisms hydraulically interconnected with
Patent
Belt type continuously variable transmission
Kawai Junji,Shinokura Takashi +1 more
TL;DR: In this article, a return spring is held outward in the radial direction by the curved part 21a of a partitioning wall 21 which dividingly forms a spring holding part 17 including an annular projections 17a formed integrally on the outer surface of the movable face 12b of a secondary pulley and an oil chamber 15.