impulse turbine
Noun
Meaning
a turbine that is driven by jets direct against the blades
Source: WordNetHypernyms
Examples
De Laval's impulse turbine is simpler, less expensive and does not need to be pressure-proof.
Impulse turbines A selection of impulse turbine blades An impulse turbine has fixed nozzles that orient the steam flow into high speed jets.
Whilst this makes the Parsons turbine much longer and heavier, the overall efficiency of a reaction turbine is slightly higher than the equivalent impulse turbine for the same thermal energy conversion.