engine speed

engine speed

The RPM of the propeller, compressor, or main rotor of an engine either in the percentage of maximum RPM/power output or actual RPM. In the case of a turbine spool engine, engine speed refers to N1 RPM (the RPM of the low-pressure compressor).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved
References in periodicals archive ?
In Eco mode, the engine delivers enhanced fuel economy by operating at a lower maximum engine speed (1,925 rpm).
The tractor's electronics will handle the balance between engine speed and transmission ratio to achieve the desired result.
The objective of this work is to conduct a comparative study of simulation results of the intake and the exhaust manifolds flow parameters of a six-cylinder direct injection turbocharged compression ignition engine based on steady-state simulation for different mass fuel injected and engine speed. The results obtained with the elaborate calculation code in FORTRAN language and those with the GT-Power software.
The 4-speed transmission had two first gears: a "special low" good for 1.6 mph and a regular first at 2.25 mph, both at l,800rpm rated engine speed. Sales literature stated a ground speed of 0.75 mph could be obtained in "special low" by throttling back the engine speed, which would result in a low idle speed of about 845rpm.
Although literature highlights considerable research activity on performance and emissions of many types of engines fuelled with biodiesel from different feedstock, most of the results have been obtained with engine designed for agricultural purpose, tested in specific values of engine speed and load conditions.
These transmissions are equipped with a control system that can adjust the gear ratio and engine speed so that it can work at a point of maximum fuel efficiency for certain conditions (RENIUS & RESCH, 2005).
The design could be used for any engine speed but would be most effective when valve event control is optimised for all different engine speeds and load conditions.