TH50728A - Engine silencers and how they are manufactured - Google Patents

Abstract

DC60 (11/28/44) This invention involves a silencer to be used in the exhaust system of the machine. Motor for car Especially The invention will involve an integrated silencer. With the sound absorbing material inserted between the external and internal tubes and the manufacturing method, a durable and easy-to-manufacture engine silencer is provided by Secure sound absorbing material during use or during the process. Production and production method of this Engine silencer containing suction material A sound absorber that is inserted between the internal and external tubes is provided with a protruding section. Approach the sound-absorbing material located on the external tube along its outer surface. When sound-absorbing material is inserted between the internal and external tubes and squeezed the ends of the inner tubes Outside to produce a soundproof pipe Protrusions that extend towards the sound-absorbing material are also created. On the external tube most of its surrounding surface after sound-absorbing material is inserted. This is done between the internal and external tubes, but is performed before the end of such external tubes is squeezed. Motor for car Especially The invention will involve an integrated silencer. With the sound absorbing material inserted between the external and internal tubes and the manufacturing method, a durable and easy-to-manufacture engine silencer is provided by Secure sound absorbing material during use or during the process. Production and manufacturing methods. Engine silencer containing suction material A sound absorber that is inserted between the internal and external tubes is provided with an overhang. Approach the sound-absorbing material located on the external tube along its outer surface. When sound-absorbing material is inserted between the internal and external tubes and squeezed the end of the inner tube, Outside to produce a soundproof pipe Protrusions that extend towards the sound-absorbing material are also created. On the external tube most of its surrounding surface after sound-absorbing material is inserted. It goes between the internal and external tubes but is performed before the end of such external tubes is squeezed.

Claims (8)

1.Engine silencer consisting of a sound-absorbing material that is inserted. Between internal and external tubes where at least one protrusion Which will reach the material The sound absorber is established on an external tube, at least along most of its circumference. 2. Engine silencers referred to in claim 1, where the suction material The sound absorbing material consists of more than one type of sound absorbing material with different properties. In its heat resistance and sound absorption capacity, and is inserted in the stacked state in a direction by thickness. 3. Engine silencers as referred to in claim 2, where the suction material The sound absorber consists of a stainless steel wire inserted on the outer surface of the inner tube and the line. The glass is layered on its outer surface. 4. Engine silencers, as referred to in claims 1 to 3, any of the above. It also contains an exhaust pipe that is provided in the inner part of the inner tube. 5.The engine silencers mentioned in claim 1 also consist of: A groove formed by arranging an overhang by pressing one area of the pipe. Outside to inside; A attachment for securing the sound pipe by hanging it on the At the bottom of the car body; And the attachment is provided in such a way as to form a single segment in the groove along the Overhang 6. How to manufacture engine silencers, which consists of the following steps: inserting sound-absorbing material between the internal and external tubes; And squeezing at least one end of such external tube for forming the end that The taper of such external pipe Where at least one of the protrusions leading towards the sound-absorbing material are Prepared on an external duct, at least as it is almost entirely after inserting sound-absorbing material. Into between the internal and external tubes but is performed at this step before squeezing the section One end of the external pipe comes in 7. The method of manufacturing the engine silencers referred to in claim 6, where the sound-absorbing material and the internal tubes are inserted into the external tubes that are prepared in such a way that In general, that is the first straight pipe. The protrusion is then formed on the external tube and then the two ends of the external tube are squeezed into a tapered shape. 8. How to manufacture the engine silencer described in claim 6, where the sound-absorbing material and the inner tube are inserted into the external tube with the other end being Squeezed into a tapered shape first. The protrusion is then prepared on the external tube and then the other end of the external tube is squeezed into a tapered shape.