idle speed


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idle speed

The lowest speed at which an engine operates smoothly when it is not carrying any type of load. In the case of aircraft engines, it is the engine RPM when the throttle or power control lever is fully closed. In cold weather conditions, it may be necessary to keep the engine RPM of a reciprocating engine higher than idle to keep the engine running.
References in periodicals archive ?
Within this range, it's fine, but there's something called an idle control system on the car which adjusts the idle speed based on engine load.
It is a three-litre V6 with a power output of 340bhp and pulling power of 450Nm from just above idle speed.
The engine should never stall as the car stops, nor should the revs drop very low then pick up to the right idle speed. If it does, there's a problem with the management system.
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.
Only two of the lakes allow combustion engines-lakes B and 5--and their only idle speed. Check in at the gate station after 6 a.m.
A nifty feature is the low-rpm assist system which automatically raises the idle speed when you engage the clutch or ride at low speed, meaning you are unlikely to ever stall.
All engines are designed as in-line 6-cylinder engines with exhaust-gas turbocharging and charge air cooling for high torque at little more than idle speed.
Therefore, it was of interest to investigate the potential exhaust temperature and energy flow improvements available by simply increasing the engine idle speed from the baseline value of 550 RPM to 1000 RPM.
Programmable features include automatic constant drum speed rpm, discharge drum rpm, slump meter calibration and truck idle speed during charging.
Viewers will learn how to alternate turning their helms from one side to the other while in neutral and smoothly shifting into forward and reverse gears at idle speed to complete their pivot turns.