FIELD: mechanical engineering; compressors of gas-turbine engines.
SUBSTANCE: invention relates to centrifugal and diagonal-flow compressors for gas-turbine engines. Proposed diffuser of centrifugal or diagonal-flow compressor has blades in which pressure surfaces and suction faces in area of trailing edge have generatrices in form of curves of at least second order pointed by concavities towards each other and smoothly conjugating with generatrices of leading edges. Novelty is that generatrices of blade leading edges are of "sword" form, being curved in circumferential direction.
EFFECT: reduced hydraulic losses in diffuser owing to reduction to minimum of radial pressure gradients in root and peripheral sections of blades.
1 dwg
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