Abstract This project is based on the fuel injectors initially; a multi-hole injector is designed and then the single-hole injector is attached and converted to a hybrid injector, which is the hybrid combination of multi-hole and single-hole injector which could be controlled electrically. All these processes are done with software. Solid works is used for designing and ANSYS is used for analysis of the 3D model. The mass flow rate, pressure and velocity through the inlet and outlet is better when compared to other nozzles. This hybrid fuel injector has the added advantage of good atomization, providing better nozzle combustion. Then, the nozzle is used to operate a range of fuels, including JETA, kerosene, gasoline, diesel, and cryogenic fuel. Using the nozzle, each fuel exhibits various properties in terms of pressure and velocity. The designs are subjected to fluid flow simulation using ANSYS. Particularly, the liquid fuel are injected with very high pressure and velocity in order to atomize the fuel to form a homogeneous combustion. The present design is done for low viscous fuels. Keywords: Fuel injectors, ANSYS, Nozzle, Viscous. Study of hybrid fuel injectors for aircraft engines Sivasankar G. A REVIEW ARTICLE © The Scientific Temper. 2023 Received: 16/07/2023 Accepted: 08/08/2023 Published : 25/09/2023 Department of Aeronautical Engineering, KIT-Kalaignarkarunanidhi Institute of Technology Coimbatore, India *Corresponding Author: Sivasankar G. A, Department of Aeronautical Engineering, KIT-Kalaignarkarunanidhi Institute of Technology Coimbatore, India, E-Mail: gassaero@gmail.com How to cite this article: Sivasankar, G.A. (2023).Study of hybrid fuel injectors for aircraft engines. The Scientific Temper, 14(3): 963-966. Doi: 10.58414/SCIENTIFICTEMPER.2023.14.3.62 Source of support: Nil Conflict of interest: None. Introducon A multi-hole nozzle has many outlet openings, whereas a single-hole nozzle only has one outlet opening through which fluid can flow. Depending on the design and application, a multi-hole nozzle’s number of holes might change. When compared to a single-hole nozzle, the fundamental benefit of employing a multi-hole nozzle is that it enables a more uniform dispersion of fluid flow. This can be especially helpful in situations like fuel injection in engines, where a more uniform spray pattern can increase combustion efficiency and lower emissions. On the other hand, a single-hole nozzle might be preferred in some situations where a highly concentrated, fast-moving jet of fluid is needed. A hybrid fuel injector is a particular kind of fuel injector that can run on two distinct fuels at once. It is frequently employed in hybrid automobiles, which run on both fuel and electricity. One set of nozzles on the hybrid fuel injector is usually used for gasoline and the other for The Scientific Temper (2023) Vol. 14 (3): 963-966 E-ISSN: 2231-6396, ISSN: 0976-8653 Doi: 10.58414/SCIENTIFICTEMPER.2023.14.3.62 https://scientifictemper.com/ electric fuel. The injector’s nozzles are placed carefully to deliver fuel to the engine at the proper time and in the appropriate amounts. The engine control module (ECM), which watches the vehicle’s working conditions and modifies the fuel flow as necessary, operates the hybrid fuel injector. The injector feeds fuel into the engine when the car is in gasoline mode. The injector, however, feeds the motor with electric fuel when the cars is in electric mode. In comparison to conventional fuel injectors, the hybrid fuel injector is intended to offer greater fuel efficiency and lower emissions. Additionally, it enables seamless transitions between gasoline and electric power for hybrid cars, resulting in a smooth and effective operation. The hybrid fuel injector is a crucial part of hybrid vehicle technology, enabling higher fuel efficiency and lessening transportation’s effect on the environment. As a result, the idea of an injection system for gasoline engines is not novel. An ongoing amount of continuous metered fuel used in automobile engines. In order to make the engines work smoothly, the gasoline injection device. The injector receives the fuel from the pimp and is released as a finely atomized mist into the air stream instead of carburetion, which combines fuel and airflow. Observable differences between the carburetor and the device for injecting gasoline. The throttle valve’s location regulates the flow of into the intake manifold with the combination. Literature Survey “Fuel atomization for next-generation gas turbine combustors” by M. A. Benjamin was published in Atomization and Sprays journal in 2000. The article discusses the