通过实验，得出了发动机转速与热泵性能系数、发动机热效率的关系曲线，并进行了分析。
Through experiment, the relation figures of engine rotation speed, coefficient of performance of heat pump and engine thermal efficiency are presented and analyzed.
阐述了脉冲爆震发动机工作原理，对脉冲爆震发动机热效率、循环过程及性能进行了初步分析。
This paper describes the principles of pulsed detonation engines (PDE) a preliminary analysis on thermal efficiency, cycle process and Performance of pulsed detonation engines has been made.
发动机的性能表现在刹车的热效率。
Engine performance is expressed in terms of brake thermal efficiency.
燃气发动机余热回收对系统总热效率的提高影响很大。
The recovery of residual heat from gas engine has a great effect on the improvement of the total thermal efficiency of the system.
通过对燃料燃烧的放热效率及燃烧生成物进行分析，进而对柴油发动机富氧燃烧的可行性进行理论分析。
The feasibility of oxygen-enriched combustion in diesel engines was analysed in theory from aspects of heat release rate of fuels and combustion products.
该公司介绍了发动机具有“长冲程大位移”，这将增加扭矩从低到高客运，增加“热效率。”
The company described the engine as having "a longer stroke and larger displacement", that would increase torque from low to high RPMs, and increase "thermal efficiency."
在负荷特性工况运行时，混合燃料发动机的有效燃料消耗率和有效热效率与汽油机基本相当；
Under the load characteristic of operation, the brake specific fuel consumption and effective thermal efficiency is almost similar to that of gasoline engine.
高负荷时发动机有效热效率增加而CO排放基本相当。
However, the brake thermal efficiency increases and the CO emissions almost equal at high loads.
在高负荷时，发动机燃用纯甲醇的热效率高于原柴油机，而且可以切断电热塞电源，发动机仍能稳定运转；
The thermal efficiency is higher than that of diesel operation at high loads, but lower at low loads.
他说，在Thielert发动机设计方案中，散热器位于发动机整流罩下方，这导致散热效率低下，阻力增加，因为它的散热器太小了，而通风量有不足。
In the Thielert approach, he says, the radiator is under the engine cowling, which leads to low cooling efficiency and more drag, because of too small a radiator and poor ducting.
压缩比增加，发动机充量系数增加，燃烧速率加快，热效率提高。
When compression ratio is increased, the volumetric efficiency is increased, giving a fast burning rate and thus high thermal efficiency and power output.
压缩比增加，发动机充量系数增加，燃烧速率加快，热效率提高。
When compression ratio is increased, the volumetric efficiency is increased, giving a fast burning rate and thus high thermal efficiency and power output.
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