Impeller shell of torque converter and method of forming the sam

Details Impeller shell of torque converter and method of forming the sam Impeller shell of torque converter and method of forming the sam

1998-01-05

2000-02-15

Look, Edward K.

Fluid reaction surfaces (i.e., impellers)

Cupped reaction surface normal to rotation plane

Torque converters

416175, 416180, 29889, 72348, 723792, 60330, 60364, F01D 522, F16D 3300

Patent

active

060245387

ABSTRACT:
An impeller shell 40a of a torque converter includes a main portion 41, a connection portion 42 and a stepped portion 43. The main portion 41 has a curved inner peripheral surface 41a carrying impeller blades, and is opposed to a turbine 5. The connection portion 42 has a cylindrical form larger in diameter than an outer periphery of the inner peripheral surface 41a, and is fixed to a front cover 3. The stepped portion 43 couples an end of the main portion 41 near an engine to an end of the connection portion 42 near a transmission. A corner portion formed of the inner peripheral surface 41a and a surface 43a near the engine has a radius set to 4 mm or less by preliminary forming by a press and subsequent finish forming by a press.

REFERENCES:
patent: 2505820 (1950-05-01), Zeidler
patent: 2694478 (1954-11-01), Zeidler
patent: 2745354 (1956-05-01), English et al.
patent: 3316622 (1967-05-01), Jandasek et al.
patent: 4450611 (1984-05-01), Ito et al.
patent: 4825521 (1989-05-01), Frotschner et al.
patent: 5346366 (1994-09-01), Shinsuke et al.
patent: 5587092 (1996-12-01), Chris et al.

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