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US 2018/0195522 A1Published application
Torque converter impeller including impeller shell having thinned section
AssigneeSchaeffler Technologies AG & Co. KG
InventorsMichael RESH, David BURKY, JR.
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Abstract
An impeller for a torque converter is provided. The impeller includes an impeller shell including an inner circumference, an outer circumference and a radial extension extending radially outward from the inner circumference. The radial extension includes an axially extending groove formed therein. The impeller also includes an impeller hub welded to the impeller shell by a weld. The weld is radially inside of the axially extending groove. A method of forming an impeller for a torque converter is also provided.
Claims16
A method of forming an impeller for a torque converter comprising:
- providing an impeller shell including an inner circumference, an outer circumference, a rounded portion configured for supporting a plurality of impeller blades and a radial extension extending radially inward from the rounded portion to the inner circumference;
- forming an axially extending groove in a back surface of a first portion of the radial extension;
- and
- welding an impeller hub to the impeller shell so as to form a weld on the back surface of a second portion of the radial extension, the second portion being radially inside of the first portion, the second portion being thicker than the first portion.
1 more element
Dependencies are inferred from the claim text.