Elastic support for a ceramic monolithic catalyzer body

An apparatus for cleaning exhaust gases comprising a monolithic catalyst body suitable for removing toxic gases from a gas flow through an exhaust gas passage and an elastic holder resiliently supporting said monolithic catalyst body, said elastic holder including

• a rigid metallic housing having an inlet opening and an outlet opening and forming an outer wall of said exhaust gas passage;
• resilient means operable to apply a resilient force upon being compressed, disposed within said housing and a major portion of which is spaced from said housing near each opening therein and being compressed, said resilient means comprising a corrugated wall device, the space between said resilent means and said housing forming an annular chamber near each opening in said housing;
• inner circumferential plate means secured to said housing and dispoded therein for guiding and supporting said resilient means for axial movement thereof said plate means being disposed between said resilient means and said gas flow to thereby shield said resilient means from direct contact by the gases;
• gripping end portions operably secured to and axially pressed by said compressed resilient means, said gripping end portions being positioned to suspend the monolithic catalyst body therebetween whereby the monolithic catalyst body is resiliently suspended, within said housing, between said gripping end portions.