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US 3,938,232 AGranted
Method of manufacturing catalyst type exhaust gas purifier
AssigneeToyota Jidosha Kogyo Kabushiki Kaisha
InventorsFumiyoshi Noda, Mikio Murachi
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Abstract
Method of manufacturing a catalyst type exhaust gas purifier utilizing a divisible vessel to hold an integrated catalyst, while a packing is inserted at the junction between the divisible parts. The space between the vessel and the catalyst is filled with a castable refractory material, which is then solidified, after which the packing is removed and then the parts of the vessel are drawn together at said junction.
Claims4
Method of manufacturing a catalyst type exhaust gas purifier, which method comprises the steps of:
- placing one side of the catalyst near the inner surface of one part of a divisible vessel;
- positioning the other part of said divisible vessel near the opposite side of said catalyst while inserting packing means between said parts which keeps said parts separated;
- said catalyst being smaller than said vessel so that a space is also left between said vessel and catalyst;
- charging a castable refractory into the space between said vessel and catalyst;
- solidifying and firing the refractory;
- and
- removing said packing and tightening the two parts of said vessel to compress said refractory, which has some elasticity, against said catalyst.
4 more elements
Dependencies are inferred from the claim text.