Exhaust connection unit for catalytic converter and manufacturing method of exhaust connection unit for catalytic converter
OwnerChunSoon JANG, Sangbeom KIM +1inventors
InventorsChunSoon JANG, Sangbeom KIM, Duk Jin PARK
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Abstract
An exhaust connection unit for a catalytic converter for connecting a turbocharger and a warm-up catalytic converter provided in a downstream side of the turbocharger includes a flange of which one end is installed to the turbocharger, and a connection member integrally formed by using a single cylindrical pipe through bending, cutting, and hydro-forming molding, and where one end of the pipe is connected to the other end of the flange and the other end of the pipe is connected to the warm-up catalytic converter.
Claims9
An exhaust connection unit for a catalytic converter for connecting a turbocharger and a warm-up catalytic converter provided in a downstream side of the turbocharger, comprising:
- a flange of which one end is installed to the turbocharger;
- and
- a connection member integrally formed by using a single cylindrical pipe through bending, cutting, and hydro-forming molding, and where one end of the pipe is connected to the other end of the flange and the other end of the pipe is connected to the warm-up catalytic converter.
A method of manufacturing an exhaust connection unit for a catalytic converter for connecting a turbocharger and a warm-up catalytic converter provided in a downstream side of the turbocharger, comprising:
- manufacturing a flange through molding;
- shaping a center portion of a single cylindrical pipe, made of the same material as the flange, into the shape of a “U” through bending-molding;
- cutting the U-shaped pipe to shape the U-shaped pipe into the shape of an “L”;
- forming a connection member by molding the entire exterior appearance of the pipe after the cutting step, and expanding lateral ends of the cut pipe through hydro-forming;
- and
- coupling the flange to one end of the molded connection member by welding.
Dependencies are inferred from the claim text.