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  1. ilprofessore

    On what date did API 11P become obsolete?

    Re. API 11P - Packaged Reciprocating Compressors for Oil and Gas Production Services: I know that 11P was replaced by ISO 13631. Can anyone tell me on what date API 11P was made obsolete? Il Professore
  2. ilprofessore

    All ceramic engine, 38% efficiency

    Dutcher: It is indeed exciting to find someone who is looking "outside the box" for a new idea. My comments: First, if you referring to a Stirling Engine, it is by definition "external combustion." Using a series of vane type air motors is a feasible approach since a...
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