BALTIMORE — Right-hander Ivan Nova is meant to eat innings within the White Sox’ rotation, which isn’t precisely asking rather a lot from a veteran with the highest-priced contract within the group. He expects to do greater than put within the hours. ‘‘I want to pitch good,’’ he stated when it was advised to him that his job is to be an innings-eater. ‘‘I want to pitch good.’’ But Nova, whom the Sox acquired from the Pirates in an offseason commerce, has been unhealthy most of the time in his first 5 begins and hasn’t been worse than he was in his 4 innings in a 9-1 loss Tuesday to the Orioles.White Sox pitcher Ivan Nova had a