IMPELLER OF CENTRIFUGAL COMPRESSOR
First Claim
1. An impeller of a centrifugal compressor, the impeller comprising:
- a plurality of full blades provided from a fluid inlet side to a fluid outlet side on the hub surface, the full blades being provided side by side;
a plurality of splitter blades provided in a flow passage formed between a pair of the mutual adjacent full blades from a part way of the flow passage to the outlet side,whereina throat is formed so that a distance from a leading edge of a rear side full blade located on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade and located on the front side of the rotation direction is minimized, andthe leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade.
1 Assignment
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Accused Products
Abstract
Interference of a leakage vortex flow generated at the tip end side of the full blade with the leading edge of the splitter blade is avoided and high pressure ratio and enhanced efficiency can be achieved. A throat of am impeller is formed so that a distance from a leading edge of a rear side full blade on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the mutually adjacent full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade.
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Citations
5 Claims
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1. An impeller of a centrifugal compressor, the impeller comprising:
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a plurality of full blades provided from a fluid inlet side to a fluid outlet side on the hub surface, the full blades being provided side by side; a plurality of splitter blades provided in a flow passage formed between a pair of the mutual adjacent full blades from a part way of the flow passage to the outlet side, wherein a throat is formed so that a distance from a leading edge of a rear side full blade located on the rear side of the rotation direction of the compressor to a front side full blade adjacent to the rear side full blade and located on the front side of the rotation direction is minimized, and the leading edge of the splitter blade is placed in a fluid flow streaming along the flow passage between the full blades, on the downstream side of a leakage vortex line formed to connect the middle location of the throat to the leading edge of the front side full blade. - View Dependent Claims (2, 3, 4, 5)
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Specification