TOROIDAL-TYPE CONTINUOUSLY VARIABLE TRANSMISSION

• Main Authors: TOYODA TOSHIRO, INOUE EIJI
• Format: Patent
• Language: English; Japanese
• Published: 05.01.2017
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GEARING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a toroidal-type continuously variable transmission capable of supplying a necessary oil amount to a loading mechanism at proper timing with good responsiveness, and capable of avoiding deterioration of efficiency by preventing excessive pressing.SOLUTION: A toroidal-type continuously variable transmission includes: a hydraulic power source 130 for supplying an oil to a loading mechanism 80 at a predetermined discharge pressure; an accumulator 116 for compensating the discharge pressure of the hydraulic power source 130 by an accumulated pressure; a pressure control valve 104 for controlling the discharge pressure of the hydraulic power source 130; a hydraulic line 150 for supplying a pressure oil from the hydraulic power source 130 to both the loading mechanism 80 and the accumulator 116; and control means 114 for controlling the pressure control valve 104. The control means 114 sets a minimum loading pressure of the loading mechanism 80 by controlling the pressure control valve 104 according to the accumulated pressure level of the accumulator 116.SELECTED DRAWING: Figure 3 【課題】応答性良く適時に必要油量をローディング機構に供給できるとともに、過押し付けを防止して効率の低下を回避できるトロイダル型無段変速機を提供する。【解決手段】このトロイダル型無段変速機は、ローディング機構８０へ油を所定の吐出圧で供給するための油圧源１３０と、その蓄圧によって油圧源１３０の吐出圧を補うためのアキュムレータ１１６と、油圧源１３０の吐出圧を制御するための圧力制御弁１０４と、油圧源１３０からの圧油をローディング機構８０およびアキュムレータ１１６の両方へ供給するための油圧管路１５０と、圧力制御弁１０４を制御する制御手段１１４とを備える。制御手段１１４は、アキュムレータ１１６の畜圧レベルに応じて圧力制御弁１０４を制御することによりローディング機構８０の最低ローディング圧を設定する。【選択図】図３