发明名称 FAN OR COMPRESSOR IMPELLER
摘要 FIELD: engines and pumps. ^ SUBSTANCE: invention relates to gas turbine production and can be used in first stages of axial fans and compressors. Proposed impeller features airfoil portion with front edge that has its generating line inclined to radial axis and comprises height-variable blades, front edge being divided into three zones, i.e. hub, central and peripheral zones. Note here that, in central zone, generating line is inclined along the flow, while, in hub zone, adjoining central one, said generating line is inclined counter the flow. Note also the remaining part of hub zone features front edge generating line inclined along the flow. ^ EFFECT: changed pattern of blade vibration variations results in decreased level of dynamic strains in blades and increased aerodynamic damping with deterioration of aerodynamic and acoustic characteristics of impellers. ^ 8 cl, 1 dwg
申请公布号 RU2381388(C1) 申请公布日期 2010.02.10
申请号 RU20080127710 申请日期 2008.07.07
申请人 OTKRYTOE AKTSIONERNOE OBSHCHESTVO "NAUCHNO-PROIZVODSTVENNOE OB"EDINENIE "SATURN" 发明人 KUZMENKO MIKHAIL LEONIDOVICH;KRIVONOGOV AL'BERT RUDOL'FOVICH;KASHCHEEV ALEKSEJ VIKTOROVICH;EREMIN ALEKSEJ ANATOL'EVICH
分类号 F04D29/38 主分类号 F04D29/38
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