任选燃料混合式发动机的设计与研究

Design and Research of Hybrid Engine with Optional Fuel

针对现有技术活塞式发动机存在的只能限定使用一种燃料、排气-进气-压缩三个阶段对能量的损耗功率大、冷却系统能量损耗过大、做功的不连续性使发动机不稳定和不均匀运转,以及燃气轮机的涡轮效率太低等问题,经过理论计算,设计出了任选燃料混合式发动机。该新型发动机不但克服了现有燃气轮机燃料消耗大和热效率低等缺点,而且还克服了活塞式四行程发动机的不均匀运转、在限定的时间里燃烧单一燃料的局限性。本设计为该新型发动机的热效率、节能减排提高、拓宽燃料使用种类提供了可行的解决方案。

The existing piston engine has only limited use of one fuel;the exhaust-intake-compression process losses power;the energy loss in cooling system is too large;the discontinuity in the work of engine leads to unstable and an uniorm operation;gas turbine efficiency is too low.Aimed at these problems,this paper designed the hybrid engine with optional fuel on the basis of theoretical calculation.The novel engine could not only overcome the shortcomings of existing gas turbine,including large fuel consumption and low thermal efficiency,but also overcomes the limitations of current piston type four stroke engine,including non-uniform operation,and burning single fuel in the limited time.For improving the thermal efficiency of the engine,saving energy,reducing emission and broadening the fuel species,this design provides a feasible solution.