Research on the Influence of Characteristics of the Annular Connecting Pipe on the Transmission Loss of the Expanded Exhaust Muffler

Table 2

Annular connecting pipe exhausts muffler structure size.

Part	L1 (mm)	L2 (mm)	L3 (mm)	L4 (mm)	L5 (mm)	L6 (mm)	D1 (mm)	D2 (mm)	D3 (mm)	D4 (mm)	α (°)
Size	50	99	102	99	50	10	52	340	320	52	120