Development of a fuel injection system for a high frequency pulse detonation engine

1997 ◽  
Author(s):  
P. Lo ◽  
D. Gonzalez ◽  
P. Lo ◽  
D. Gonzalez
Keyword(s):  
High Frequency ◽  
Fuel Injection ◽  
Injection System ◽  
Pulse Detonation Engine ◽  
Fuel Injection System ◽  
Pulse Detonation ◽  
Detonation Engine ◽  
Frequency Pulse

Ignition Study on a Rotary-valved Air-breathing Pulse Detonation Engine

2017 ◽  
Vol 34 (2) ◽  
Author(s):  
Yuwen Wu ◽  
Qixiang Han ◽  
Yujia Shen ◽  
Wei Zhao
Keyword(s):  
Fuel Injection ◽  
Firing Frequency ◽  
Pulse Detonation Engine ◽  
Air Breathing ◽  
Pulse Detonation ◽  
Flame Acceleration ◽  
Detonation Engine ◽  
Droplet Sizes ◽  
Initial Flame ◽  
Transition To Detonation

AbstractIn the present study, the ignition effect on detonation initiation was investigated in the air-breathing pulse detonation engine. Two kinds of fuel injection and ignition methods were applied. For one method, fuel and air was pre-mixed outside the PDE and then injected into the detonation tube. The droplet sizes of mixtures were measured. An annular cavity was used as the ignition section. For the other method, fuel-air mixtures were mixed inside the PDE, and a pre-combustor was utilized as the ignition source. At firing frequency of 20 Hz, transition to detonation was obtained. Experimental results indicated that the ignition position and initial flame acceleration had important effects on the deflagration-to-detonation transition.

scholarly journals Study on Influence of Diameter on Detonation Acoustic Characteristics of Pulse Detonation Engine

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Gui-yang Xu ◽  
Chun-guang Wang ◽  
Yan-fang Zhu ◽  
Hong-yan Li ◽  
Lun-kun Gong ◽  
...  
Keyword(s):  
Acoustic Characteristic ◽  
Pulse Detonation Engine ◽  
Acoustic Characteristics ◽  
Experiment System ◽  
Pulse Detonation ◽  
Impact Noise ◽  
Maximum Duration ◽  
Detonation Engine ◽  
Set Up ◽  
Different Diameters

AbstractThe experiment system of pulse detonation engine is set up to investigate on influence of diameter on detonation acoustic characteristic. The research of detonation acoustic characteristic of pulse detonation engine for four different diameters in different angles is carried out. Results from the test show that as the PDE diameter increasing, there are increases in amplitudes of impact noise in all angles, and the growth rate of amplitude of impact noise in the 90° direction is generally greater than that in the 0° direction. The smaller PDE diameter is, the distance of most obvious directivity at 0° turning to most obvious directivity at 30° is shorter. When the distance is shorter, such as 200 mm, the duration of detonation acoustic is increasing with the increase of PDE diameter, however, when the distance is longer, such as 3000 mm, it is just the opposite. The maximum duration of detonation acoustic is appeared in 3000 mm under 30 mm PDE diameter which reaches to 1.44 ms.

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