In addition, it has continuously variable, precise localization and the protection system with over voltage, over currents. Direct drive, without gear, no need lubrication oil replacement.Ĭustomized controller designed for HVLS Fans. It adopts outer rotor structure, direct drive linkage and drive impeller rotation principle. PMSM（Permanent Magnet Synchronous Motor） technology with high efficiency and long service time. High efficiency, large power, small volume, light weight.
It brings loads of reliable experience for the user.ģ.
It is very done the maintenance-free and greatly improved the service life of the large industrial fan.
229910052782 aluminium Inorganic materials 0.Large industrial & commercial fan driven by the PMSM motor saves the reducer link, has no gear and high speed running bearings, so it absolves to replace the oil, the reduction of the gear and bearing replacement maintenance thus on. Application granted granted Critical Publication of US5328330A publication Critical patent/US5328330A/en Assigned to COMERICA BANK, AS AGENT reassignment COMERICA BANK, AS AGENT SECURITY AGREEMENT Assignors: HUDSON PRODUCTS CORPORATION Assigned to MERRILL LYNCH CAPITAL, AS ADMINISTRATIVE AGENT reassignment MERRILL LYNCH CAPITAL, AS ADMINISTRATIVE AGENT SECURITY AGREEMENT Assignors: HUDSON PRODUCTS CORPORATION Assigned to HUDSON PRODUCTS CORPORATION reassignment HUDSON PRODUCTS CORPORATION RELEASE OF PATENTS Assignors: COMERICA BANK, AS AGENT Assigned to HUDSON PRODUCTS CORPORATION reassignment HUDSON PRODUCTS CORPORATION RELEASE OF SECURED PARTY'S PATENT SECURITY INTEREST IN PATENTS ORIGINALLY RECORDED ON REEL/FRAME: 016641/0743 (AND REFERENCED ON SCHEDULE A TO THIS RELEASE OF PATENT SECURITY INTEREST) Assignors: MERRILL LYNCH CAPITAL, AS ADMINISTRATIVE AGENT Anticipated expiration legal-status Critical Status Expired - Fee Related legal-status Critical Current Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Hudson Products Corp filed Critical Hudson Products Corp Priority to US08/100,847 priority Critical patent/US5328330A/en Assigned to HUDSON PRODUCTS CORPORATION reassignment HUDSON PRODUCTS CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Original Assignee Hudson Products Corp Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Monroe Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US08/100,847 Inventor Robert C. 
Aluminum airfoil extrusion pdf#
Google Patents Extruded aluminum fan bladeĭownload PDF Info Publication number US5328330A US5328330A US08/100,847 US10084793A US5328330A US 5328330 A US5328330 A US 5328330A US 10084793 A US10084793 A US 10084793A US 5328330 A US5328330 A US 5328330A Authority US United States Prior art keywords fan blade fin trailing edge set forth fin portion Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US5328330A - Extruded aluminum fan blade
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