EXHAUST SYSTEM SUPPORT STRUCTURE OF INTERNAL COMBUSTION ENGINE

PROBLEM TO BE SOLVED: To provide an exhaust system support structure which can surely support an exhaust system without causing fracture even if a distance from the exhaust system up to a power plant or a fastening part at a vehicle body side is long.SOLUTION: An exhaust system support structure 1 of an internal combustion engine comprises: a main body fastening part 40L which is arranged at a transmission 4 located at a sideway of a left-side exhaust pipe 30L; an exhaust fastening part 33L which is arranged at an upper part of the outside of the left-side exhaust pipe 30L; a bracket 12 fastened to the main body fastening part 40L; and a stay 11L which is fastened to the exhaust fastening part 33L, and low in rigidity than the bracket 12. The bracket 12 and the stay 11L are fastened to each other by a connecting part 5, and a distance H1 between the exhaust fastening part 33L and the connecting part 5 in a height direction is set longer than a distance H2 between the main body fastening part 40L and the connecting part 5 in the height direction.SELECTED DRAWING: Figure 2 【課題】排気系からパワープラント又は車体側の締結部までの距離が離れている場合であっても、破損することなく排気系を確実に支持できる排気系支持構造を提供すること。【解決手段】左側排気管３０Ｌの側方に位置するトランスミッション４に設けられた本体締結部４０Ｌと、左側排気管３０Ｌの外側上部に設けられた排気締結部３３Ｌと、本体締結部４０Ｌに締結されたブラケット１２と、排気締結部３３Ｌに締結されブラケット１２よりも剛性の低いステー１１Ｌと、を備え、ブラケット１２とステー１１Ｌは接続部５により互いに締結され、高さ方向における排気締結部３３Ｌと接続部５との距離Ｈ１が、高さ方向における本体締結部４０Ｌと接続部５との距離Ｈ２よりも大きくなるように構成された内燃機関の排気系支持構造１である。【選択図】図２