It was the first Pool B game of the competition for the Americans, who moved into a first-place tie with Canada.
The Canadians downed Germany 9-3 on Wednesday.
John Gibson stopped all 19 shots he faced through two periods in the U.S. goal.
He was replaced for the third by Jon Gillies, who made seven saves.
German goalie Marvin Cupper stopped 38 shots.
Note to readers: This is a corrected story. A previous version said the two teams were in Pool A.