PROBLEM TO BE SOLVED: To provide a silencer capable of improving silent performance while attaining downsizing and compactification.SOLUTION: A downstream end of a conduit 91 is a cylindrical member including a conduit discharge port 91j for discharging exhaust to the outside through a silencer body. The cylindrical member includes a resonance communication hole communicating with a resonance chamber, and an upstream side communication hole 91f and a downstream side communication hole 91g communicating with a second chamber 102. Inside the cylindrical member and between the upstream side communication hole 91f and the downstream side communication hole 91g, provided is a partition wall 111 as a throttle narrowing an exhaust passage in the middle of the cylindrical member.SELECTED DRAWING: Figure 6
【課題】小型・コンパクト化を図りながら消音性能を向上させることが可能な消音器を提供することにある。【解決手段】導管91は、その下流端が、消音器本体を貫通して排気を外部に排出する導管排出口91jを備える筒状部材であり、この筒状部材に共鳴室に連通する共鳴連通孔と、第2室102に連通する上流側連通孔91f及び下流側連通孔91gとを備え、筒状部材の内側に、且つ上流側連通孔91fと下流側連通孔91gとの間に、筒状部材の途中の排気通路を絞る絞り部としての隔壁111が設けられる。【選択図】図6
SILENCER
消音器
2016-10-20
Patent
Electronic Resource
Japanese
IPC: | F01N GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL , Schalldämpfer oder Auspuffvorrichtungen für Gase von Kraft- und Arbeitsmaschinen oder von Kraftmaschinen allgemein / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer |