IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0604666
(2009-10-23)
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등록번호 |
US-8186386
(2012-05-29)
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발명자
/ 주소 |
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출원인 / 주소 |
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대리인 / 주소 |
Thorpe North & Western LLP
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인용정보 |
피인용 횟수 :
0 인용 특허 :
9 |
초록
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A modular exhaust tube system for directing exhaust gases from an internal combustion engine. The exhaust tube system includes first and second elongate half-shells, with each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sid
A modular exhaust tube system for directing exhaust gases from an internal combustion engine. The exhaust tube system includes first and second elongate half-shells, with each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sideways opening along the length of the body. The exhaust tube system also includes a center brace having dimensions which span the length and height of the sideways openings. The sideways openings of the first and second half-shells are coupled together around the center brace to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from the internal combustion engine. In one aspect the first and second half-shells are selected from a group of interchangeable and modular half-shells having different substantially U-shaped cross-sectional profiles that are reversible top-to-bottom and end-to-end.
대표청구항
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1. A modular exhaust tube system for directing exhaust gases from an internal combustion engine, comprising: first and second elongate half-shells, each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a pair of substantially straight para
1. A modular exhaust tube system for directing exhaust gases from an internal combustion engine, comprising: first and second elongate half-shells, each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a pair of substantially straight parallel legs and a constant sideways opening along the length of the body, said half-shells having a half-shell height between the outside edges of said legs along said sideways opening; anda center brace having dimensions which span the length and height of the sideways openings and which height dimension is substantially equal to the half-shell height;wherein the sideways openings of the first and second half-shells are coupled together against the center brace to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from an internal combustion engine. 2. The exhaust tube system of claim 1, wherein the first and second elongate half-shells are reversible top-to-bottom and end-to-end. 3. A modular exhaust tube system for directing exhaust gases from an internal combustion engine, comprising: first and second elongate half-shells, each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sideways opening along the length of the body; anda center brace having dimensions which span the length and height of the sideways openings;wherein the sideways openings of the first and second half-shells are coupled together around the center brace to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from an internal combustion engine; andwherein the first and second elongate half-shells are selected from a group of interchangeable and modular half-shells having different substantially U-shaped cross-sectional profiles. 4. The exhaust tube system of claim 3, wherein the exhaust tube formed from any two half-shells selected from the group of interchangeable and modular half-shells has a predetermined circumference and a constant internal cross-sectional area from the inlet end to the outlet end. 5. The exhaust tube system of claim 3, wherein the different substantially U-shaped cross-sectional profiles are selected from a group consisting of a rounded-shaped profile, a rectangle-shaped profile, a trapezoid-shaped profile, a sigma-shaped profile and a peaked-shaped profile. 6. The exhaust tube system of claim 1, wherein the center brace is solid along the length thereof to restrict the exhaust gases from passing from one half-shell to the other half-shell. 7. The exhaust tube system of claim 1, wherein the center brace comprises a plurality of apertures along a length thereof for allowing the exhaust gases to pass from one half-shell to the other half-shell. 8. The exhaust tube system of claim 7, wherein the shape of the plurality of apertures is selected from the group consisting of round, NACA, oblong, triangular, polygonal, and rounded slot shapes, and combinations thereof. 9. The exhaust tube system of claim 1, further comprising each of the sideways openings having at least one inwardly-bending lip, and wherein the inwardly-bending lips of coupled half-shells join together around the center brace to form a groove for containing weld melt from a linear weld. 10. A modular exhaust tube system for directing exhaust gases from an internal combustion engine, comprising: first and second elongate half-shells, each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sideways opening along the length of the body; anda center brace having dimensions which span the length and height of the sideways openings;wherein the sideways openings of the first and second half-shells are coupled together around the center brace to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from an internal combustion engine; andfurther comprising a tandem flattened elongate exhaust tube positioned adjacent to but without contacting the exhaust tube for directing additional exhaust gases from the internal combustion engine. 11. The exhaust tube system of claim 1, further comprising a transition tube for coupling the inlet end of the exhaust tube system to a rounded secondary exhaust piping outlet of the internal combustion engine, said transition tube comprising: first and second tapered half-shells, each tapered half-shell comprising a tapered thin-wall body having a substantially U-shaped cross-sectional profile with a tapered sideways opening along the length of the body; anda tapered center brace having dimensions which span the length and height of the tapered sideways openings,wherein the tapered sideways openings of the first and second tapered half-shells are coupled together around the center brace to form an enclosed transition tube having a transition inlet shaped to match the rounded secondary exhaust piping outlet and a transition outlet shaped to match the inlet end of the elongated exhaust tube. 12. The exhaust tube system of claim 11, wherein the transition inlet shape comprises a round shape or an oval shape. 13. The exhaust tube system of claim 11, wherein the tapered center brace is separate from the center brace of the elongate exhaust tube. 14. The exhaust tube system of claim 11, wherein the tapered center brace is a continuous extension of the center brace of the elongate exhaust tube. 15. The exhaust tube system of claim 11, wherein the tapered center brace is asymmetrical having a tapered top edge and a straight bottom edge. 16. The exhaust tube system of claim 11, further comprising each of the tapered sideways openings having at least one inwardly-bending lip, and wherein the inwardly-bending lips of coupled tapered half-shells join together around the tapered center brace to form a groove for containing weld melt from a linear weld. 17. A method for making an exhaust tube for an internal combustion engine, comprising: obtaining a first and second elongate half-shell, each half-shell comprising an elongate thin-wall body having a substantially U-shaped cross-sectional profile with a constant sideways opening along the length of the body;obtaining a center brace having dimensions which span the length and height of the sideways openings, wherein the center brace is selected from a group of interchangeable and modular center braces consisting of a solid center brace and center braces having a different plurality of shaped apertures,aligning the sideways openings of the first and second half-shells together around the center brace; andcoupling the half-shells and the center brace together to form a flattened elongate exhaust tube having an inlet end and an outlet end for directing exhaust gases from an internal combustion engine. 18. The method of claim 17, further comprising selecting the first and second elongate half-shells from a group of interchangeable and modular half-shells having different substantially U-shaped cross-sectional profiles. 19. The method of claim 18, wherein the different substantially U-shaped cross-sectional profiles are selected from a group consisting of a rectangle-shaped profile, an oval-shaped profile, a trapezoid-shaped profile and a sigma-shaped profile. 20. The method of claim 17, wherein the first and second elongate half-shells are reversible top-to-bottom and end-to-end. 21. The method of claim 17, wherein the different plurality of shaped apertures are selected from the group consisting of a round shape, a NACA shape, a triangular shape, a polygonal shape, an oblong shape and a slotted rectangular shape, and combinations thereof. 22. The method of claim 17, wherein coupling the first and second elongate half-shells and the center brace together further comprises welding the half-shells and the center brace together using a linear weld. 23. The method of claim 22, wherein obtaining a first and second elongate half-shells further comprises obtaining half-shells with sideways openings having at least one inwardly-bending lip, and wherein the inwardly-bending lips of the coupled half-shells join together around the center brace to form a groove for containing weld melt from the linear weld. 24. The method of claim 17, further comprising positioning a tandem flattened elongate exhaust tube adjacent to but without contacting the exhaust tube for directing additional exhaust gases from the internal combustion engine.
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