Laminated pipe exhaust conduit with low pressure seal joint
    1.
    发明授权
    Laminated pipe exhaust conduit with low pressure seal joint 失效
    具有低压密封接头的层压管排气管

    公开(公告)号:US3653696A

    公开(公告)日:1972-04-04

    申请号:US3653696D

    申请日:1969-11-18

    发明人: CASSEL THOMAS R

    IPC分类号: F16L25/06 F16L25/10 F16L39/00

    摘要: An exhaust conduit for automotive internal combustion engines is disclosed wherein a low-pressure seal joint between pipe sections is used with a laminated pipe to avoid failures of the laminated pipe which have been experienced with prior art joints. The laminated pipe includes at the interface of the laminations a residual quantity of oil-like material which is used in the manufacturing process. When used in an exhaust system with a high-pressure seal joint the material vaporizes under the influence of the hot exhaust gases and the vapor pressure thereof causes separation of the laminations, collapse of the inner lamination or other failure of the pipe. A low-pressure seal over a band of engagement in the joint is effective to prevent leakage of the exhaust gases and at the same time to allow vaporized material between the laminations to escape through the end of the laminated pipe.

    摘要翻译: 公开了一种用于汽车内燃机的排气管,其中管段之间的低压密封接头与层压管一起使用,以避免现有技术接头经历的层压管的故障。 层压管在层压体的界面处包含在制造过程中使用的剩余量的油状材料。 当在具有高压密封接头的排气系统中使用时,材料在热废气的影响下蒸发,并且其蒸汽压力导致叠片的分离,内层压的崩溃或管的其它故障。 在接头处的接合带上的低压密封有效地防止排气的泄漏,同时允许层压体之间的气化物质通过层压管的端部逸出。

    Flexible pipe coupling
    3.
    发明授权
    Flexible pipe coupling 失效
    柔性管接头

    公开(公告)号:US3574358A

    公开(公告)日:1971-04-13

    申请号:US3574358D

    申请日:1968-10-30

    发明人: CASSEL THOMAS R

    IPC分类号: F16L27/10 F16L21/02 F16L27/12

    摘要: A flexible pipe coupling particularly adaptable to an exhaust system for a motor vehicle having an internal combustion engine and a vehicle frame. The flexible coupling may be disposed generally midway of the exhaust system, at which point a first pipe, such as the exhaust pipe leading from the engine manifold, coaxially receives, or terminates adjacent the end of, a portion of a second pipe, such as the tailpipe extending rearwardly of the vehicle. An intermediate pipe is received about the ends of the exhaust pipe and the tailpipe, and is coaxial therewith. The intermediate pipe defines an annular chamber with the tailpipe, the chamber being in communication with the exhaust pipe. A first resilient seal is disposed between one end of the intermediate pipe and the exhaust pipe and a second resilient seal is disposed between one end of the intermediate pipe and the tailpipe. Heat insulating means are disposed between the resilient seals and the exhaust and tailpipes respectively, to limit heat transfer from hot exhaust gasses to the resilient seals and the intermediate pipe. The resilient seals and the dimensional parameters in the coupling permit angular movement of the exhaust pipe and tailpipe relative to each other, and the intermediate pipe may be formed so as to limit axial movement of the pipes relative to each other under operating conditions of the vehicle. The annular chamber between the intermediate pipe and the tailpipe is dimensioned so that the coupling acts as a sound-attenuating device, attenuating sounds in a particular range of frequencies emanating from the engine and passing with the exhaust gasses.