On the base of the analysis of the application of vibration mechanisms in the motor transport vehicles, considering the possibilities of fuel injection systems, the study presents survey of possibilities the usage of the devices micro-dosing and spraying apparatus, the construction and the principle of the operation of vibration-assisted springloaded batcher, the necessary for its functioning vibration operation forms and the dependences of measured fuel amount on the leakage chamber width and how it is related to vibration frequency and amplitude. The results of mathematical modeling and experimental analysis based on laser holographic interferometry are presented.