Is a
Patent attributes
Current Assignee
0
Patent Jurisdiction
Patent Number
Patent Inventor Names
Sungwon Han0
Inho Choi0
Kidong Kim0
Kyunghwan Kim0
Date of Patent
March 11, 2014
0Patent Application Number
130309200
Date Filed
February 18, 2011
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A turbo fan includes a main plate for rotation in a rotational direction about a rotational axis and a plurality of blades arranged at intervals around the rotational axis of the main plate. At least one blade includes: a first blade section having a leading end and a trailing end; a second blade section having a leading end and a trailing end, wherein the first blade section is between the main plate and the second blade section; and a third blade section having a leading end and a trailing end, wherein the third blade section is between the first blade section and the second blade section.
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