卡特皮勒公司研究部主任C.E.格拉韦称,卡特皮勒公司预测在21世纪期间柴油机将是重型移动设备的主要动力源。他谈到了在代用燃料和燃料节约计划方面取得的成就,以及控制排放物方面的改进。多种燃料发动机柴油机可使用各种燃料。使用代用燃料是卡特皮勒公司产品开发计划的一部分。即使在今天,使用植物油、 C.E. Grave, Caterpillar’s research director, said Caterpillar predicts that diesel engines will be the major power source for heavy-duty mobile equipment during the 21st century. He talked about the achievements made in saving fuel and fuel savings plans, as well as improvements in emissions control. A variety of fuel engines Diesel engines can use a variety of fuels. Using alternative fuels is part of Caterpillar’s product development program. Even today, using vegetable oil,