PDF Publication Title:
Text from PDF Page: 015
the blades in the rotor disc rims vary in different designs. They commonly fit into discs by either bulb (Figure 1-20) or fir-tree (Figure 1-21) type roots. The blades then lock by grub screws, peening, locking wires, pins, or keys. The stator has rows of blades or vanes dovetailed into split rings and attached inside an enclosing case. The stator vanes project radially toward the rotor axis and fit closely on either side of each stage of the rotor. Compressor blade tips reduce in thickness by cutouts, and are referred to as blade “profiles.” These profiles allow rubbing when rotor blades come into contact with the compressor housing or shroud without serious damage. This condition may occur if rotor blades become excessively loose or by reduction of rotor support by a malfunctioning bearing. Even though blade profiles reduce such chances, occasionally a blade may break under duress of rubbing and cause considerable damage to compressor blades and stator vane assemblies. The blades vary in length from entry to discharge. The annular working space (drum to casing) reduces progressively toward the rear by the increase in the rotor drum diameter. The rotor may feature either drum-type or disc-type construction. The entire assembly is held together by through-bolts, tie-bolts, or bolted individually to one another. The drum-type rotor (Figure 1-22) is machined from a single aluminum alloy forging. Dovetail grooves are machined around the circumference of the drum for blade retention. Provisions for bearing supports and splined drive shafts are on the front and rear faces of the drum. The disc- type rotor consists of separately machined discs and spacers Figure 1-20 — Bulb root-type rotor blades. Figure 1-22 — Drum-type compressor rotor. flanged to fit one against the other in sequence. Blades may be attached to the disc rim by the dovetail or bulb design. Similar provisions to those on the drum-type assembly are made for bearing supports and splined drive shafts. Another method of rotor construction is to machine the discs individually, and shrink fit the discs over a steel drive shaft (heating the disc and freezing the shaft to assemble the rotor). However, this type of compressor construction is only satisfactory for compressors where rotor and centrifugal stresses are relatively low. The drum and disc- type rotor assemblies (Figures 1-22 and 1-23). Figure 1-21 — Fir-tree root-type rotor blades. 1-15PDF Image | JET ENGINE THEORY AND DESIGN
PDF Search Title:
JET ENGINE THEORY AND DESIGNOriginal File Name Searched:
14008A_ch1.pdfDIY PDF Search: Google It | Yahoo | Bing
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
IT XR Project Redstone NFT Available for Sale: NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Be part of the future with this NFT. Can be bought and sold but only one design NFT exists. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Turbine IT XR Project Redstone Design: NFT for sale... NFT for high tech turbine design with one part 3D printed counter-rotating energy turbine. Includes all rights to this turbine design, including license for Fluid Handling Block I and II for the turbine assembly and housing. The NFT includes the blueprints (cad/cam), revenue streams, and all future development of the IT XR Project Redstone... More Info
Infinity Turbine ROT Radial Outflow Turbine 24 Design and Worldwide Rights: NFT for sale... NFT for the ROT 24 energy turbine. Be part of the future with this NFT. This design can be bought and sold but only one design NFT exists. You may manufacture the unit, or get the revenues from its sale from Infinity Turbine. Royalties go to the developer (Infinity) to keep enhancing design and applications... More Info
Infinity Supercritical CO2 10 Liter Extractor Design and Worldwide Rights: The Infinity Supercritical 10L CO2 extractor is for botanical oil extraction, which is rich in terpenes and can produce shelf ready full spectrum oil. With over 5 years of development, this industry leader mature extractor machine has been sold since 2015 and is part of many profitable businesses. The process can also be used for electrowinning, e-waste recycling, and lithium battery recycling, gold mining electronic wastes, precious metals. CO2 can also be used in a reverse fuel cell with nafion to make a gas-to-liquids fuel, such as methanol, ethanol and butanol or ethylene. Supercritical CO2 has also been used for treating nafion to make it more effective catalyst. This NFT is for the purchase of worldwide rights which includes the design. More Info
NFT (Non Fungible Token): Buy our tech, design, development or system NFT and become part of our tech NFT network... More Info
Infinity Turbine Products: Special for this month, any plans are $10,000 for complete Cad/Cam blueprints. License is for one build. Try before you buy a production license. May pay by Bitcoin or other Crypto. Products Page... More Info
CONTACT TEL: 608-238-6001 Email: greg@infinityturbine.com (Standard Web Page)