| 摘要 |
PCT No. PCT/SE95/01086 Sec. 371 Date Apr. 15, 1997 Sec. 102(e) Date Apr. 15, 1997 PCT Filed Sep. 25, 1995 PCT Pub. No. WO96/10144 PCT Pub. Date Apr. 4, 1996The present invention provides a poppet damper, disposed in an exhaust gas duct, which makes it possible to perform an easy machining for providing a sealing surface and which provides excellent sealing following deformation caused by heat. The poppet damper includes a damper seat, disposed in a duct casing; a poppet plate for controlling exhaust gas flow by adjustment of a gap between the poppet plate and the damper seat; and an air cylinder and a damper shaft for allowing driving of the aforementioned poppet plate in a reciprocating manner. A seal plate is mounted to the poppet plate (3), which seal plate is separated by a gap of predetermined size from the poppet plate, with the seal plate placed in contact with the damper seat when the damper is closed. |
