Effect of Lubrication Pattern on the Performance of a Small Turbojet Engine-Reference-Cited by-同舟云学术

Effect of Lubrication Pattern on the Performance of a Small Turbojet Engine

Published:2023-08-04 Issue: Volume: Page:152-157
ISSN:0972-950X
Container-title:Journal of Aerospace Sciences and Technologies
language:
Short-container-title:joast

Author:

Mishra A.K.,Mishra R.K.,Gouda G.

Abstract

A small turbojet engine has been designed for UAV application and is intended to operate at high altitude and high subsonic speed. The mist lubrication system adopted initially for bearing to support a rotor speed of about 30000 rpm has exhibited good performance under test bed condition but incurs oil starvation during altitude operation. The present paper evaluates the performance of a mist lubrication system during flight and its limitations and drawbacks. The paper also highlights the performance of a close-loop system at altitude operating conditions enabling the system to meet the flight goal. The effect of lubrication pattern on bearing performance has been studied during this exercise. The bearings are found to be cooler with respect to engine speed as well as with altitude when working with closed loop system within the operating range.

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