As reported here a while ago, the Rangers will play just three preseason games in the U.S. this year, then head directly from the third one to Europe where they will play three more exhibitions and start the regular season with a pair of games.
Adam Rotter at the SNY blog has nailed down the dates:
Sept. 21—vs. the Devils in Albany.
Sept. 23—vs. the Devils in Newark.
Sept. 26—at Philadelphia.