The present invention relates to a sheet-metal-type part, in particular a muffler bottom having at least one through-opening for a tubular part. The sheet-metal-type part has at least one slot passing through the sheet-metal-type part in an area adjacent to the through-opening. The slot runs essenti
The present invention relates to a sheet-metal-type part, in particular a muffler bottom having at least one through-opening for a tubular part. The sheet-metal-type part has at least one slot passing through the sheet-metal-type part in an area adjacent to the through-opening. The slot runs essentially in the circumferential direction or runs tangentially to the through-opening.
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The invention claimed is: 1. A sheet-metal-type muffler bottom, having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least on
The invention claimed is: 1. A sheet-metal-type muffler bottom, having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein said at least one slot has at least one rounded end that enlarges in width on a longitudinal end, and wherein the at least one rounded end is arranged so it is concave to a second rounded end of the at least one slot and the at least one and the second rounded ends point radially outward from the at least one slot. 2. The sheet-metal-type muffler bottom according to claim 1, wherein said at least one slot comprises a plurality of slots, at least two of said plurality of slots being of different lengths. 3. The sheet-metal-type muffler bottom according to claim 1, wherein the at least one slot comprises a plurality of slots, and said plurality of slots arranged around the through-opening on a limited segment of the circumference. 4. The sheet-metal-type muffler bottom according to claim 1, wherein a tubular part is fixedly connected to the sheet-metal-type muffler bottom in the area of said through-opening. 5. A sheet-metal-type muffler bottom, having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein a first and a second end section of said at least one slot on the longitudinal end are curved in a semicircular shape, and wherein the curved first and second end sections are arranged so they are concave to one another and point radially outward from the at least one slot. 6. The sheet-metal-type muffler bottom according to claim 5, wherein said at least one slot comprises a plurality of slots, at least two of said plurality of slots being of different lengths. 7. The sheet-metal-type muffler bottom according to claim 5, wherein the at least one slot comprises a plurality of slots, and said plurality of slots arranged around the through-opening on a limited segment of the circumference. 8. The sheet-metal-type muffler bottom according to claim 5, wherein a tubular part is fixedly connected to the sheet-metal-type muffler bottom in the area of said through-opening. 9. A sheet-metal-type muffler bottom, having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein the at least one slot comprises a plurality of slots arranged along a plurality of circles spaced a distance apart from one another radially, and wherein the plurality of slots has a curved profile. 10. The sheet-metal-type muffler bottom according to claim 9, wherein the slots are arranged in a type of offset arrangement along the circles spaced a distance apart from one another radially. 11. The sheet-metal-type muffler bottom according to claim 10, wherein the circles come in contact at a point. 12. A muffler for an internal combustion engine having a sheet-metal-type muffler bottom having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein said at least one slot has at least one rounded end that enlarges in width on a longitudinal end, and wherein the at least one rounded end is arranged so it is concave to a second rounded end of the at least one slot and the at least one and the second rounded ends point radially outward from the at least one slot, and a tubular pad which in the installed state passes through the sheet-metal-type muffler bottom in said through-opening and is connected to the sheet-metal-type muffler bottom at said through-opening. 13. A sheet-metal-type muffler bottom having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein the at least one slot comprises a plurality of slots arranged along a plurality of circles spaced a distance apart from one another radially, and wherein the plurality of slots has a straight profile. 14. The sheet-metal-type muffler bottom according to claim 13, wherein the slots are arranged in a type of offset arrangement along the circles spaced a distance apart from one another radially. 15. The sheet-metal-type muffler bottom according to claim 14, wherein the circles come in contact at a point. 16. A muffler for an internal combustion engine having a sheet-metal-type muffler bottom having at least one through-opening for an exhaust pipe, wherein the sheet-metal-type muffler bottom has at least one slot passing through the sheet-metal-type muffler bottom in an area adjacent to the through-opening, said at least one slot running essentially in the circumferential direction of the through-opening or tangentially to the through-opening, wherein a first and a second end section of said at least one slot on the longitudinal end are curved in a semicircular shape, and wherein the curved first and second end sections of the at least one slot are arranged so they are concave to one another and point radially outward from the at least one slot; and a tubular part which in the installed state passes through the sheet-metal-type muffler bottom in said through-opening and is connected to the sheet-metal-type muffler bottom at said through-opening.
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이 특허에 인용된 특허 (8)
Currie Neil L. (47 Whitehall Rd. Toronto ; Ontario CAX), Automotive exhaust system.
Kicinski Kenneth J. (Stoughton WI) Printiss ; Sr. Frederick H. (Stoughton WI) Jasensky Richard J. (Stoughton WI), Exhaust muffler with protective shield.
Richardson Larry E. (Columbus IN) Strickland David W. (Elizabethtown IN) Zagar Frank L. (Seymour IN) Wilcox Richard C. (Columbus IN), Muffler assembly.
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