以前的转子发动机密封条寿命短,因而可靠性差.美国伊利诺斯州的John Deere公司在美国海军陆战队的资助下改进了设计,例如提高了转子铸件的刚性和精度、在转子端面的沟槽里设计了内衬弹簧的密封条、改进了涂层,从而解决了工作室的密封问题等,研制出了一系列军用转子发动机.该机无论是体积还是重量都比往复式柴油机小了一半(外形尺寸为991×762×1118mm,重614kg),用于坦克后,坦克内可以容纳更多的战士、燃料或弹 Previous rotors of engine seals had poor reliability and therefore were of poor reliability. John Deere of Illinois, USA, with the support of the U.S. Marine Corps, improved the design by, for example, improving the rigidity and accuracy of rotor castings, In the design of the inner lining of the spring seal to improve the coating, thus solving the problem of the studio sealed, developed a series of military rotor engine, both in size and weight than the reciprocating diesel engine in half ( Dimensions of 991 × 762 × 1118mm, weight 614kg), used in tanks, tanks can accommodate more soldiers, fuel or bombs