Semi-open type impeller and fabrication method thereof

• Main Authors: WANG JINXING, SHA XIAOMING, WANG SHUMIN
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2018
• Subjects: ADDITIVE MANUFACTURING TECHNOLOGY; ADDITIVE MANUFACTURING, i.e. MANUFACTURING OFTHREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVEAGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING,STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING; BLASTING; CALCULATING; CASTING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; HEATING; LIGHTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; PERFORMING OPERATIONS; PHYSICS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; POWDER METALLURGY; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; TRANSPORTING; WEAPONS; WORKING METALLIC POWDER

The invention discloses a semi-open type impeller and a fabrication method for the semi-open type impeller. The semi-open type impeller comprises an impeller cover body and a shaft sleeve located on the impeller cover body, the part, located on one side of the impeller cover body, of the shaft sleeve is of a cylindrical structure, the part, located on the other side of the impeller cover body, ofthe shaft sleeve is of a circular-truncated-cone-shaped structure, a shaft hole is machined in the axis line direction of the shaft sleeve, a rotating shaft is installed inside the shaft hole, the impeller cover body is provided with a plurality of blades, the circumferential thickness of each blade is increased gradually from a corresponding blade tip to a corresponding blade root, and each bladeis provided with a first pressure hook face and a second pressure hook face, provided with a cladding hook face and provided with a first suction force hook face and a second suction force hook face.The semi-open type impelle