| 摘要 |
PCT No. PCT/DE89/00771 Sec. 371 Date May 17, 1990 Sec. 102(e) Date May 17, 1990 PCT Filed Dec. 14, 1989 PCT Pub. No. WO90/08250 PCT Pub. Date Jul. 26, 1990.An interior pipe carrying exhaust gases is arranged in a cooled housing 13. The interior pipe fastened to the housing 13 comprises individual sections 18 arranged in series while leaving expansion joints. The length of one section 18 corresponds approximately to the cylinder spacing of the piston internal-combustion engine. At the circumference, at the halfway point of its length, each section 18 has a plug-type connection 20 interacting with the housing. This plug-type connection 20 is arranged approximately opposite the lead-in point of an exhaust stub 15 of a cylinder interacting with the section 18. The plug-type connection 20 comprises a receiving device which, in a cooled manner, is arranged in the housing and a corresponding plug 23 connected with the section 18 of the interior pipe. When the operating temperature of the interior pipe is reached, the plug-type connection 20 causes a support against the housing 13, whereby an excitation of vibrations of the sections 18 of the interior pipe by the impinging pulsating exhaust gas flow is avoided.
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