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Cummins Engine Co., the world’s largest maker of high-power diesel engines, said it will change to Cummins Inc. to emphasize the growth of businesses such as generators and engine-filtering systems. The name change was approved by the company’s board last month and will be voted on by shareholders at Cummins’ annual meeting in April. Pending that approval, the company will do business under the new name. The Columbus, Ind.-based company said its power-generation, filtration and other businesses now generate about 40% of sales, five times as much as units other than engines accounted for 30 years ago. The company had sales last year of $6.64 billion.