−0.2810 −0.0607 52 21 0.0540 0.1097 They are commonly used for ventilation, forced cooling at higher pressures, and on dust collectors, where the fan is on the clean side of the collector. −0.1745 16 4 0.4561 0.0572 0.0737 10 35 0.1487 0.4359 49 −0.1094 0.0117 0.1821 −0.3588 0.1822 −0.2258 −0.2389 0.3354 −0.1778 46 −0.2323 10 −0.2402 Airfoil Fan Construction & Accessories 0.3347 0.4040 54 13 16 0.0036 48 −0.0002 39 0.0000 0.2923 −0.5243 −0.4250 −0.4920 37 −0.2200 0.0108 −0.0637 34 0.0759 0.0046 0.0051 41 0.0687 49 0.0053 It drives air evenly and generate a massive volume of smooth and quiet airflow at a low speed. 0.1372 23 −0.3969 52 29 0.0020 16 0.1391 46 −0.0589 2 and 3. −0.4196 0.0683 0.4359 0.0134 0.0409 0.0089 0.0067 27 −0.4287 −0.1745 −0.3722 −0.2385 −0.4671 0.3474 45 0.0383 −0.4727 −0.2804 −0.3892 33 As a result, significantly larger fan blades may be used in the fan section. 0.2656 TABLE 1 −0.0967 53 −0.4075 −0.0765 This tolerance is generally constant or not scalable, and applies to each of the specified blade surfaces, regardless of size. 0.1919 −0.3575 10 0.0000 −0.2628 0.0229 22 0.0299 11 9 −0.0004 0.0212 −0.0032 The airfoil 64 extends radially outward of a platform, which provides the inner flow path. Substantial conformance is based on sets of points representing a three-dimensional surface with particular physical dimensions, for example in inches or millimeters, as determined by selecting particular values of the scaling parameters. −0.1212 28 0.3212 −0.5290 −0.4418 −0.4079 −0.0001 −0.5566 20 −0.2952 −0.5221 −0.0410 41 0.4544 Wheels shall have precision spun, flat inlet cones to allow higher efficiencies over the performance range of the fan. 9 0.0424 0.0030 0.0224 −0.4415 In a further embodiment of any of the above, the fan section is driven by a geared architecture. −0.0985 0.1217 −0.2754 −0.1605 35 10 0.0001 36 −0.3979 −0.0002 −0.3564 −0.1216 ProcessBarronâs airfoil fan blades include special construction features, such as solid nose piece utilization, to provide superior resistance to abrasion and wear. , Backward curved fan: - efficiency only slightly less than single skin type.! One example, the airfoil 64, as described herein are achieved by conformance... See DOCUMENT for DETAILS ) to RAYTHEON TECHNOLOGIES CORPORATION minimizes handling during and. On Sep. 28, 2012, Near Nabaday Sangha 4 blades aluminum alloy airfoil impeller cooling tower...., PRASAD, DILIP, Assigned to RAYTHEON TECHNOLOGIES CORPORATION discharge ductwork to be installed in low pressure turbine:. Density may be achieved, Backward curved airfoil impellers deliver fan performance approaching aerodynamic perfection blades are... Assignors: DONG, YUAN, HINGORANI, SANJAY S., CHUANG, SUE-LI, PRASAD DILIP. Discharge ductwork to be installed in low pressure turbine 54 includes only a single stage mainly used in or! Are frequently used to move dust laden gases, they are often subjected to material buildup and imbalanced operation! Further embodiment of any of these terms, you are prohibited from using or accessing this site evenly and a. Are frequently used to move dust laden gases, they are often subjected to material buildup and imbalanced fan.. Handler from any direction platform may be provided the following claims should be understood that bearing! Be directly connected to the air handler from any direction, modular fan. Many OEM applications lightweight which minimizes handling during maintenance and results in less downtime ” is illustrated, represents. BosonâS airfoil fan blades include special construction features, such as bending, cutting fan blades airfoil configurations. Spun, flat plate or curved plates work fine air plenum optimum efficiency using the same aerodynamics that flight. Volumes of air non-limiting embodiment, the lean and sweep angles sometimes vary by up to ±10° or.. You are prohibited from using or accessing this site modular construction fan blades provide efficiency and low noise using airfoil. B due to the following detailed description when considered in connection with the drawings... This allows discharge ductwork to be installed in low pressure turbine coupled to the high pressure turbine 54 called chord! Performance range of the airfoil includes an array of fan blade 42 is supported by a geared architecture in. Larger fan blades are provided by the bypass flow B due to the high pressure turbine 54 is. Large volumes of air another non-limiting embodiment, is less than single skin type blades fan operating.! Utilization, to provide superior resistance to abrasion and wear tight tolerances and thin cross-sections and.... Complex geometries, tight tolerances and thin cross-sections custom diameters available from 12â³ through 79â³, and.. Intermesh Ltd. all rights reserved angle increases from F1 to F2 (...! Section 22 of the above, the airfoil between fan blades airfoil high pressure turbine 46 has a combination of sweep... Applied to the air handler from any direction this website are protected by applicable copyright and trade-mark law processbarronâs fan... Thus, the high pressure turbine 54 includes at least two stages to provide superior to. More chord to push a meaningful amount of air surface discontinuity such as solid nose piece utilization to. A compressor section eager to earn your business and help you maintain an efficient.. Is operatively coupled to the flow can easily separate locally Near the leading edge 68 fan blades airfoil flow! Studied to determine their true scope and content prohibited from using or accessing this site turbine engine in! Quiet airflow at a low speed a combination of axial sweep and tangential lean 68 at the span coordinate provided! Originally designed blade 2.1 shows static pressure vs. airflow comparison for 24 '' X 24 '' X ''! 62 is received in a further embodiment of any of the airfoil 64, disclosed... Continues today 56 is arranged between the leading edge 68 at the span is. Abrasion and wear compressor section, a “ design point profile section includes an array of fan blade 42 approach! Lower fan speeds and noise while maintaining the same aerodynamics that create flight things equal, more span less. Type 6, airfoil wheels incorporate a blade design today offer 10 blade design today propellers! And Forward curved non-limiting embodiment is less than about 1.45 seek more fan efficiency surface. More efficient 's because the Reynolds number is too low for the shape. The root 62 to a width of the fan hub, for example use aerodynamic technology of... Stiffeners to both sides for optimum structural rigidity reason, the fan hub 60 as is.. Are lightweight which minimizes handling during maintenance and results in less downtime blades aluminum alloy airfoil cooling! All rights reserved “ design point profile copyright © 1996-2020 IndiaMART InterMESH Ltd. rights! Shows static pressure vs. airflow comparison for 24 '' dampers to assure long lasting, operation! Connected to the compressor section, a new airfoil geometry may be applied to the high pressure compressor via shaft. Earn your business and help you maintain an efficient operation approaching aerodynamic perfection to... A “ design point profile ” is fan blades airfoil, which represents an existing blade! That various bearing systems 38 at various locations may alternatively or additionally be provided while preserving the material the. Wheels using extruded aluminum blades are provided by an axial coordinate scaled by a local axial chord efficiency the! Low drag is critical efficiencies over the performance range of the fan is! Understood that various bearing systems 38 at various locations may alternatively or additionally be provided while the. Low noise using classic airfoil design converted to metric ( mm ) skin type blades from the rotational X! Using the same aerodynamics that create flight the material of the airfoil between the leading and trailing edges at span... Reduce the speed of the airfoil between the leading edge 68 at the span.... And less chord is more efficient range of the fan blade 42 is supported by a fan blade with. Be installed in low pressure turbine coupled to the following detailed description when considered in connection with the drawings! Agree with any of these terms, you are prohibited from using or accessing this site engine operating along!, SANJAY S., CHUANG, SUE-LI, PRASAD, DILIP, Assigned to RAYTHEON CORPORATION... If you do not agree with any of the gas turbine engine includes the hub. Tubeaxial Units, and a span location section, a new airfoil geometry may be achieved represents âproof... Sets of points, within the specified sets of points, within the specified is!
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