Development of the Stainless Cast-Steel Exhaust Manifold

Paper #:
  • 930621

Published:
  • 1993-03-01
Citation:
Shimamoto, T., Asano, K., Shioya, Y., and Ando, S., "Development of the Stainless Cast-Steel Exhaust Manifold," SAE Technical Paper 930621, 1993, https://doi.org/10.4271/930621.
Pages:
11
Abstract:
At Mitsubishi Motors, a thin-walled exhaust manifold, made of stainless cast-steel, has been developed with the aim of achieving higher heat-resisting reliability as well as weight reduction. The new exhaust manifold is made of ferritic stainless cast-steel, employing an advanced vacuum casting (CLAS). Its geometry was designed using finite element analysis and its durability was confirmed by testing both on various test devices and on a vehicle.The exhaust manifolds has been adopted on a production engine model and has proven the following advantages over a conventional cast-iron ones; excellent heat resistance. weight reduction of over 20%. possible exhaust emission reduction as a result of lower heat-capacity of the exhaust manifold.
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