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).
References in periodicals archive ?
Powered by a dedicated hydrostatic drive system and an electronic control system that regulates oil flow, it maintains a selected rotor speed regardless of changes in the engine speed or field conditions.
There's a step-up gear in the supercharger so it produces full boost at one-half engine speed," says Terry, who notes that the M24 unit is normally used for engines in the 800-cc to 1.
New to Fendt's CVT is the addition of the Tractor Management System (TMS), an electronic software interface between the engine and transmission used to control engine speed relative to ground speed.
Avoid that by gradually lowering the engine speed until the water wheel stops.
The AuraGen VIPER compactness, low weight and high output power flexibility even at low engine speed is just what the Coast Guard needs.
The SuperGen breaks the fixed link between engine speed and compressor speed in a centrifugal supercharger, allowing the compressor to run at the optimum speed.
Engine speed is automatically adjusted to match the output load through the company's Smart Throttle system, which is designed to allow the engine to operate at a more efficient level.
Then the starter will not sense the engine speed and won't shut off after the engine gets up to speed.
VTG provides for efficient control of the exhaust gas flow throughout the entire range of engine speed, guiding the flow of air in exactly the right direction and at the right angle to the turbine blades.
The ability to control engine speed in a variety of ways and to integrate other systems and components into the engine control unit has resulted in a high value-added engine control solution that is very cost competitive.
By adding speeds to conventional automatics," he says, "automakers are able to reduce the torque converter's use, lower the engine speed under a variety of conditions, and get the same or better performance while using less fuel.
Among the parameters monitored by the ECM are engine speed, camshaft position, manifold pressure, oil temperature, oil pressure and coolant temperature.