** export of inline code blocks which are silent
   :PROPERTIES:
   :DATE:     2011-02-20
   :END:
#+begin_src emacs-lisp :results silent
  (setf org-babel-default-inline-header-args
        '((:session . "none")
          (:results . (if (boundp 'org-current-export-file) "replace" "silent"))
          (:exports . "results")))
#+end_src

Here is an inline code block src_sh{echo 8} <- there