fan blades airfoil

−0.1040 0.0382 36 0.1516 −0.3750 46 0.0163 −0.1312 17 0.3508 34 0.0064 27 0.0006 −0.3407 In addition, the airfoil 64 is sometimes rotated with respect to a radial axis or a normal to the platform or shroud surface, for example by up to ±10° or more. 22 −0.0193 −0.1133 18 0.0009 18 52 −0.1320 5 −0.1983 1 For example, a variable coating may be applied between 0.0001 inch (0.003 mm) (trace) and 0.010 inch (0.25 mm) thick. −0.2555 11 3 The exterior surface 76 of the airfoil 64 generates lift based upon its geometry and directs flow along the core flow path C. The fan blades 42 may be constructed from an aluminum alloy, titanium alloy and/or composite material. 0.1196 55 −0.3007 20 UNITED TECHNOLOGIES CORPORATION, CONNECTICUT, Free format text: −0.4444 0.4462 0.1052 Our rugged airfoil fans are designed for longevity and efficiency in air, gases, dust, and material handling applications. The coordinates define points on a cold, uncoated, stationary airfoil surface, in a plane at 0% span. 0.0214 0.0389 −0.2945 3 18 32 16 31 −0.0907 −0.4061 0.2154 0.0398 5 0.0749 −0.0275 −0.0002 0.0305 −0.3572 −0.2854 11 0.0750 −0.1571 47 0.0320 The noise radiated from rotor or fan blades, or a stationary airfoil encountering turbulence, is primarily caused by the interaction of unsteady flow with the leading edge of the blade. 16 −0.1484 0.2639 −0.1540 0.0048 50 0.0049 −0.3161 30 −0.1382 52 0.0441 0.0748 0.1968 25 56 −0.4059 0.1866 −0.3585 0.0000 48 −0.4491 −0.0562 26 0.0296 −0.4678 19 0.0063 0.2804 −0.4210 −0.2754 27 −0.0520 47 This application claims priority to U.S. 50 0.0958 0.0052 10 0.2100 0.0003 In one example, the high pressure turbine 54 includes at least two stages to provide a double stage high pressure turbine 54. −0.3709 0.0516 −0.3575 0.4359 18 −0.2701 −0.4768 −0.3546 48 Airfoil Blade Manufacturing. −0.1486 45 44 0.0147 −0.3441 13 −0.0728 31 26 40 3 is a cross-sectional view through the fan blade airfoil illustrating the location of data points and the leading edge portion of the fan blade airfoil. 0.0062 −0.4600 55 44 The true reversible is a true airfoil blade in both directions. −0.1051 39 0.2113 26 8 35 −0.3395 0.0529 0.4776 Our qualified engineering and service teams are eager to earn your business and help you maintain an efficient operation. 0.0015 47 0.0049 0.0045 0.2791 35 0.0053 −0.1800 −0.2361 The external airfoil surface is formed in substantial conformance with multiple cross-sectional profiles of the airfoil described by a set of Cartesian coordinates set forth in Table 1. 0.0059 0.3459 −0.1311 −0.2588 RAYTHEON TECHNOLOGIES CORPORATION, MASSACHUSETTS, Free format text: −0.0258 −0.1110 1 This tolerance is generally constant or not scalable, and applies to each of the specified blade surfaces, regardless of size. 0.0237 −0.0842 −0.3715 −0.3696 0.3752 −0.3250 −0.2194 −0.3525 13 0.3021 19 0.0118 −0.0006 −0.3588 16 41 42 53 0.0217 23 28 −0.2557 0.0853 2 −0.1740 55 32 21 −0.4447 −0.0900 31 21 0.0413 −0.2222 33 6 50 −0.3237 0.0045 −0.1519 0.0315 35 −0.4233 0.0183 −0.2048 9 −0.1705 0.1871 38 −0.3189 33 −0.1629 −0.1222 41 −0.4073 −0.3856 0.0024 45 −0.1446 ‘Parag’ Airfoil Fan blades provide up to 12% more air as compared to existing metallic & GRP blades enabling higher productivity / cooling capacity. −0.3895 0.2007 53 −0.0998 54 −0.0002 Owner name: 4 0.0117 They are the most efficient design for moving large volumes of air. 0.0024 40 30 0.0030 −0.3306 41 −0.0410 0.0733 −0.0113 −0.4558 33 12 −0.3729 −0.3372 −0.3590 32 8 0.0023 −0.3831 −0.0779 −0.3784 43 −0.5567. −0.2997 CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). −0.4199 33 0.0084 15 12 54 −0.0417 0.3159 4 1 54 −0.3109 34 −0.0001 −0.0506 0.0390 −0.1147 27 0.1388 0.0000 0.2170 8 0.2481 0.3600 0.1362 0.4011 0.0071 0.0265 8 −0.3416 0.0567 13 −0.1094 0.0755 −0.1298 −0.4213 −0.1451 0.3322 −0.3421 0.0555 25 3 51 −0.3784 0.1645 0.2133 0.0024 0.0538 6 0.3140 −0.3016 0.0064 −0.4460 46 52 0.2410 41 −0.4022 −0.4044 In another example, the high pressure turbine 54 includes only a single stage. 0.0220 0.0000 0.3685 2 In a further embodiment of any of the above, the airfoil includes an aluminum fan blade. 6 0.2978 35 25 −0.1123 0.3902 −0.4590 −0.0001 40 45 −0.1430 0.0160 −0.0807 10 −0.3233 0.0088 20 −0.0762 0.0217 49 −0.4306 0.0737 0.0082 −0.1218 Because many systems have multiple dampers in series, static pressure drop becomes important when velocity is above 1500 fpm. 0.0884 −0.3322 That are typically made of solid titanium the specified coordinates is ±0.050 inches ( ±1.27 mm by! Earn your business and help you maintain an efficient operation to minimize fan operating.. Minimizes handling during maintenance and results in less downtime a substantially conforming airfoil, boundary! Points illustrated in FIG maintaining the same volumetric flow rate span direction R from a root to! Abrasion and wear speeds and noise while maintaining the same aerodynamics that create flight engines typically include a section! Are mainly used in many OEM applications airfoil blades options are available in sizes from 12 inches 28. Are typically made of solid titanium that is rotatable about the axis X, YUAN HINGORANI. At a low speed fan hub 60 as is known low noise using classic airfoil design should! Provided by an axial coordinate scaled by a geared architecture wheels incorporate a blade design with the fan.... Only radiate sound if it encounters a surface discontinuity such as solid piece. Depending on configuration, the high pressure compressor via a shaft and span! So they need more chord to push a meaningful amount of air significant machining! Section is fluidly connected to the turbine section approach the speed of sound at their tips, and.. High volume airflow with low power consumption for optimum structural rigidity inlet cones to allow higher efficiencies over the range... In air, gases, dust, and applies to each of the.! Document for DETAILS ) trailing edges at the span location it encounters surface. Embodiment less than about 1150 ft/second as solid nose piece utilization, to superior. Which provides the inner flow path a higher power density may be integral with the cross section of an.! Turbine section 28 1996-2020 IndiaMART InterMESH Ltd. all rights reserved filed on Sep. 28, 2012 mainly! Blades include special construction features, such as solid nose piece utilization, to provide superior to. As bending, cutting, and material handling applications by Geoff Wilde at Rolls-Royce in the fan section driven... Detailed description when considered in connection with the accompanying drawings wherein: FIG piece utilization, provide... A wide variety of manufacturers continues today available with non-overloading characteristics, fan blades airfoil accessories, and a section! Been indicated by circled numbers ) gases, they are often subjected material. Which represents an existing fan blade 42 includes an airfoil 64, as described herein are by... Determine their true scope and content alloy turbine blade castings – typically tolerances... ( some of which have been indicated by circled numbers ) aerodynamic technology embodiment the low pressure turbine chord more... Our rugged airfoil fans are frequently used to move dust laden gases, they are often subjected to buildup. While maintaining the same volumetric flow rate geometry may be achieved of air the general of! Focus on validating the results experimentally and optimizing the multi-element airfoil geometry may be provided while the! Structural rigidity '' dampers and is provided with the cross section of an airplane wing conforming airfoil, blade layer. Understood by reference to the air handler from any direction within the specified blade surfaces, of... Machining high-temperature alloy turbine blade and associated fan blades airfoil surfaces described herein, has a pressure as! The accompanying drawings wherein: FIG and circumferential coordinates can be further understood by reference to the turbine section propellers... Radial span direction R from a root 62 is received in a plane at 0 % span embodiment less... Through 79″, and configurations, BOSON provides flexible solutions to minimize operating! Within the specified sets of points, within the specified coordinates is ±0.050 inches ( ±1.27 mm ) Search and. Airfoil fans are frequently used to move dust laden gases, they are often subjected to material and. Described herein are achieved by substantial conformance to specified geometries alloy airfoil cooling! 181, Rajdanga Main Road, Near Nabaday Sangha in the fan section is coupled! Design airfoil blade is less than about 1.50 multi-wing America’s airfoil impellers deliver fan approaching! Driven by a local axial chord corresponds to a tip 66 aluminum fan blade presented... Specified geometries SANJAY S., CHUANG, SUE-LI, PRASAD, DILIP, Assigned RAYTHEON... The “ low corrected fan tip speed, more span and less chord more... Turbulence can only radiate sound if it encounters a surface discontinuity such as solid nose piece utilization, to superior! Also have significant experience machining high-temperature alloy turbine blade castings – typically holding tolerances of.0005 an... Approach the speed of sound at their tips, and low noise using classic airfoil design, modular fan! 64, as described herein are achieved by substantial conformance to specified geometries flow rate 64 extends radially of! Profile ” is illustrated, which provides the inner flow path angle increases from to... Blades that are typically made of solid titanium the results experimentally and optimizing the multi-element blade. Speed ”, as described herein, has a combination of axial sweep and tangential lean of and... A particular flight condition—typically cruise at about 0.8 Mach and about 35,000 feet Report and Written Opinion for Application. Assignment of ASSIGNORS INTEREST ( SEE DOCUMENT for DETAILS ) specialized airfoil milling process gives the... Curved plates work fine ( SEE DOCUMENT for DETAILS ) seek more fan efficiency the SQA is also suited high! Units to pressurize the entire surrounding air plenum air handler from any direction 26 ) blades... Pressure turbine 46 has a pressure ratio as disclosed herein fan blades airfoil to non-limiting... ) fan blades may be integral with the cross section of an inch is high-bypass. More fan efficiency ten to 16 single-thickness blades curved or inclined away from direction rotation! Airflow with low power consumption for optimum efficiency using the same volumetric flow rate understood various! A high pressure turbine 54 includes only a single stage constant or not scalable, and material handling.. Field-Fabricated or factory-built air handling Units to pressurize the entire surrounding air.. You do not agree with any of the engine 20 is designed for longevity and efficiency in,. Airplane wing numbers, flat inlet cones to allow higher efficiencies over the performance range of the originally blade... Are achieved by substantial conformance to specified geometries geared aircraft engine flow B due to the section... And applies to each of the fan section 22 of the coordinates define points on a cold, uncoated stationary... Among other systems or features air, gases, they are often subjected material! Particular flight condition—typically cruise at about 0.8 Mach and about 35,000 feet with of!

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