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US 6,484,854 B2Granted
Torque converter
AssigneeYutaka Giken Co., Ltd.
InventorsTokuji Yoshimoto, Koji Inoue
Life of this patent
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AssigneeYutaka Giken Co., Ltd.
InventorsTokuji Yoshimoto, Koji Inoue
Estimating the term…
A torque converter includes a turbine impeller integrally connected to a pump impeller, a side-cover having a boss and covering the turbine impeller, and a turbine shaft extending through the boss and connected to the turbine impeller. A radial bearing and a one-way clutch are disposed axially adjacent to each other between the boss of the side-cover and the turbine shaft. The radial bearing serves to retain the boss and the turbine shaft concentrically, and the one-way clutch connects the turbine shaft and the side-cover to each other, when a back load is applied to the turbine shaft. Therefore, a load received by a clutch element of the one-way clutch such as a sprag between the turbine shaft and the side-cover is equalized. Thus, when a back load is applied to the turbine shaft, a slipping between the turbine impeller and the pump impeller is prevented, thereby providing a good engine brake effect.
A torque converter comprising a pump impeller connected to an input shaft, and a turbine impeller which is opposed to said pump impeller and to which a turbine shaft is connected, wherein said torque converter further includes a radial bearing and a one-way clutch, which are disposed coaxially adjacent to each other between a boss of a side-cover integrally connected to said pump impeller to cover said turbine impeller and said turbine shaft extending through said boss and connected to said turbine impeller, said radial bearing serving to retain said boss and said turbine shaft concentrically, and said one-way clutch connecting said turbine shaft and said radial bearing to each other when a back load is applied to said turbine shaft, wherein said radial bearing is axially non-movably mounted on said boss of said side-cover, and a boss of said pump impeller is secured to said input shaft, so that a thrust load applied to an output gear which is connected to an outer end of said turbine shaft in a direction toward said turbine impeller is applied to said radial bearing.
A torque converter comprising a pump impeller connected to an input shaft, and a turbine impeller which is opposed to said pump impeller and to which a turbine shaft is connected, wherein said torque converter further includes a radial bearing and a one-way clutch, which are disposed coaxially adjacent to each other between a boss of a side-cover integrally connected to said pump impeller to cover said turbine impeller and said turbine shaft extending through said boss and connected to said turbine impeller, said radial bearing serving to retain said boss and said turbine shaft concentrically, and said one-way clutch connecting said turbine shaft and said radial bearing to each other when a back load is applied to said turbine shaft, wherein said radial bearing is formed with a seal and disposed on the side opposite of said one-way clutch to said turbine impeller.
Dependencies are inferred from the claim text.