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AssigneesKabushiki Kaisha Toyota Chuo Kenkyusho, Toyota Jidosha Kabushiki Kaisha
InventorsMasatoshi Yamada, Yasuhiro Kondo, Kenji Imai, Masahiro Kojima, Nobuyuki Nagashima
Estimating the term…
To suppress a separation of working fluid from the vane surface during operation at and around a fluid coupling condition attained after a substantial completion of torque conversion, the aerofoil and the array of stator vanes of a torque converter for vehicles are arranged such that a pressure side leading edge area and a suction side trailing edge area of the vane respectively satisfy the following conditions based upon the parameters assumed in FIG. 2: (D.sub.L -D.sub.LMIN)/D.sub.LSL .ltoreq.0.38(X.sub.L /S.sub.L -0.08).sup.1. 7 (D.sub.T -D.sub.TMIN)/D.sub.TST .ltoreq.0.36(X.sub.T /S.sub.T -0.45).sup.1. 7
A stator of a torque converter for vehicles, comprising stator vanes each having such an aerofoil configuration and being arranged in such an array that, with respect to an area adjacent to a leading edge (L.sub.1) of a pressure side surface of a first one (V.sub.1) of said array of stator vanes, as viewed in a change of diameter (D.sub.L) of a circle tangentially contacting with both said pressure side leading edge area surface of said first stator vane (V.sub.1) and an inlet stream line (F.sub.a) of working fluid directed to a leading edge (L.sub.2) of a second one (V.sub.2) of said array of stator vanes downstream of said first stator vane (V.sub.1) along a flow of the working fluid, said circle substantially satisfies the following condition, for the purpose of suppressing a separation of the working fluid from said pressure side leading edge area surface of said first stator vane (V.sub.1) in a fluid coupling condition attained after a substantial completion of torque conversion and therearound, against a shifting thereof between a position of X.sub.L =0.08S.sub.L from a cross point (M) of a perpendicular extended from the leading edge (L.sub.1) of said first stator vane (V.sub.1) to said inlet stream line (F.sub.a) and a position where it traverses the leading edge (L.sub.2) of said second stator vane (V.sub.2):
A stator of a torque converter for vehicles, comprising stator vanes each having such an aerofoil configuration and being arranged in such an array that, with respect to an area adjacent to a trailing edge of a suction side surface of a first one (V.sub.2) of said array of stator vanes, as viewed in a change of diameter (D.sub.T) of a circle tangentially contacting with both said suction side trailing edge area surface of said first stator vane (V.sub.2) and an outlet stream line (F.sub.b) of working fluid extending from a trailing edge (T.sub.1) of a second one (V.sub.1) of said array of stator vanes upstream of said first stator vane (V.sub.2) along a flow of the working fluid, said circle substantially satisfies the following condition, for the purpose of suppressing a separation of the working fluid from said suction side trailing edge area surface of said first stator vane (V.sub.2) in a fluid coupling condition attained after a substantial completion of torque conversion and therearound, against a shifting thereof between a position of X.sub.T =0.45S.sub.T from the trailing edge (T.sub.1) of said second stator vane (V.sub.1) and a position where it traverses a cross point (N) of a perpendicular extended from said trailing edge (T.sub.2) of said first stator vane (V.sub.2) to said outlet stream line (F.sub.b):
A stator of a torque converter for vehicles comprising stator vanes each having such an aerofoil configuration and being arranged in such an array that a pressure side surface of each of said stator vanes adjacent to a leading edge thereof substantially satisfies the following conditions, in terms of a change of diameter (D.sub.L) of a circle tangentially contacting both the pressure side surface of a first one (V.sub.1) of said stator vanes adjacent to the leading edge (L.sub.1) thereof and an inlet stream line (F.sub.a) directed to the leading edge (L.sub.2) of a second one (V.sub.2) of said stator vanes, when said circle is shifted from a position of X.sub.L =0.08S.sub.L distant from a cross point (M) at which said inlet stream line (F.sub.a) intersects with a perpendicular extended from the leading edge (L.sub.1) of said first stator vane relative to said inlet stream line (F.sub.a) to a position of the leading edge (L.sub.2) of said second stator vane,
A stator of a torque converter for vehicles comprising stator vanes each having such an aerofoil configuration and being arranged in such an array that a suction side surface of each of said stator vanes adjacent to a trailing edge thereof substantially satisfies the following conditions, in terms of a change of diameter (D.sub.T) of a circle tangentially contacting both an outlet stream line (F.sub.b) extended from the trailing edge of a first one (V.sub.1) of said stator vanes and the suction side surface of a second one (V.sub.2) of said stator vanes, when said circle is shifted from a position of X.sub.T =0.45S.sub.T from the trailing edge (T.sub.1) of said first stator vane to a position of a cross point (N) at which said outlet stream line (F.sub.b) intersects with a perpendicular extended from the trailing edge (T.sub.2) of said second stator vane relative to said outlet stream line (F.sub.b),
Dependencies are inferred from the claim text.