Speed ​​range

from Wikipedia, the free encyclopedia

A speed range is understood - especially in science and technology - to be an interval of speeds . This term is mainly used in connection with motors .

Specifically, one speaks of the “usable speed range” or the “ elastic range” in motor vehicle engines ; this is the speed range in which the torque of the motor is perceived as sufficient in practical use. This range is roughly - to give only a very rough guide - between the speed of the maximum torque and the nominal speed at which the highest power can be delivered. Combustion engines stop below the usable speed range (they are "stalled"), above they can be damaged in continuous operation (they "over-rev").

Modern car engines are designed for a wide speed range. Otto engines are still superior to diesel engines with their mostly lower rated speeds. High-performance motors, on the other hand, often only have a relatively narrow usable speed range because the speed of the highest torque is close to the rated speed; Therefore, for example in motor vehicles as is Motorsport a precisely coordinated transmission with many transmission stages and frequent switching is necessary.

literature

  • Hans Jörg Leyhausen: The master craftsman's examination in the automotive trade part 1. , 12th edition, Würzburg 1991, ISBN 3-8023-0857-3