Abstract: A torque converter structure having a plurality of high efficiency secure weld free connections between blades and the shells of the pump and turbine that reduces flow between the blades and the shells. At least one blade within the torque converter is securely mechanically attached to the shell of the pump or turbine in the absence of welding by providing a tab on the blade that is bent on a portion that passes through a slit in the shell to secure the blade to the shell and by inserting a major part (greater than 50%) of a portion of an edge of the blade, that runs coextensively with a surface of the shell into a depression in that shell until the edge of the blade diverges from the shell. The invention also includes the unique blade and shell and a method for using them to make a torque converter of the invention.

Abstract: A blade for a torque converter including a body having an outer edge, the outer edge arranged to conform to an inner surface of a shell in the torque converter, the shell having at least two slots arranged therethrough, and a surface extending from the outer edge, the surface having at least two tabs, wherein the surface is arranged to conform to the inner surface of the shell to provide a fluid seal, the at least two tabs are disposed through the at least two slots and at least one of the at least two tabs is arranged to engage an outer surface of the shell. The invention further includes a torque converter including the present invention blades and a method of assembling the same.

Abstract: A torque converter structure having a plurality of high efficiency secure weld free connections between blades and the shells of the pump and turbine that reduces flow between the blades and the shells. At least one blade within the torque converter is securely mechanically attached to the shell of the pump or turbine in the absence of welding by providing a tab on the blade that is bent on a portion that passes through a slit in the shell to secure the blade to the shell and by inserting a major part (greater than 50%) of a portion of an edge of the blade, that runs coextensively with a surface of the shell into a depression in that shell until the edge of the blade diverges from the shell. The invention also includes the unique blade and shell and a method for using them to make a torque converter of the invention.

Abstract: A blade for a torque converter including a body having an outer edge, the outer edge arranged to conform to an inner surface of a shell in the torque converter, the shell having at least two slots arranged therethrough, and a surface extending from the outer edge, the surface having at least two tabs, wherein the surface is arranged to conform to the inner surface of the shell to provide a fluid seal, the at least two tabs are disposed through the at least two slots and at least one of the at least two tabs is arranged to engage an outer surface of the shell. The invention further includes a torque converter including the present invention blades and a method of assembling the same.