Apparatus receiving catalysts for the decontamination of exhaust gas of internal combustion engines
AssigneeHoechst Aktiengesellschaft
InventorsWilhelm Vogt, Eitel Goedicke, Gerhard Mietens, Hermann Glaser
Life of this patent
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Abstract
Apparatus adapted to receive one or more catalysts for the decontamination of exhaust gas of internal combustion engines. The apparatus, which includes a closed container for one or more beds of catalyst, is provided with an inlet for introducing exhaust gas thereinto and with an outlet for removing decontaminated exhaust gas therefrom. The catalyst beds are maintained in position by means of a spring-actuated clamping device which comprises a thrust rod, a mounting therefor and a spring element. The spring element, which bears against the mounting, urges the thrust rod into close contact with the catalyst beds.
Claims5
In an apparatus receiving catalysts for the decontamination of exhaust gas of internal combustion engines, wherein a container having a longitudinal axis and being disposed between a pair of covers is provided with an inlet for introducing exhaust gas thereinto and an outlet for removing decontaminated exhaust gas therefrom, said inlet and outlet being spaced from each other and at least one bed of particulate catalyst being confined between a pair of pressure plates permeable to gas being disposed in the space between the inlet and outlet, the improvement which comprises a clamping device being arranged outside and parallel with respect to the longitudinal axis of the container and being rigidly secured to at least one of the pair of container covers;
- said clamping device being an open frame-shaped mounting including two supporting beams disposed substantially parallel to said longitudinal axis and which are spaced apart and held in position by means of a cross beam;
- a thrust rod being extended through said cross beam and through said at least one of said pair of covers by means of a central passageway forming part of said cover;
- the thrust rod portion projecting outwardly through said passageway being threaded and carrying a nut positioned between said cross beam and said cover;
- and a helical spring concentrically surrounding said thrust rod, being clamped between said cross beam of said frame-shaped mounting and said nut and elastically urging the thrust rod into contact with at least one of the pair of pressure plates confining the bed of catalyst, whereby the bed of catalyst is maintained under compression.
Dependencies are inferred from the claim text.