PDF Publication Title:
Text from PDF Page: 004
5 EP 2 657 481 A1 6 portion according to a first embodiment of the present invention. FIG. 1(B) is a view obtained when viewed in a direc- tion indicated by an arrow P of FIG. 1 (A) and is a schematic structural view of a principal portion show- ing an upper-half section along the rotational axis of each of a scroll portion and the turbine rotor; FIG. 2 is a cross-sectional view in a direction orthog- onal to the axis of a turbine rotor of a tongue portion according to a second embodiment of the present invention; FIG. 3 is an explanatory view of a tongue-shaped logarithmic spiral according to the second embodi- ment of the present invention; FIG. 4 is a cross-sectional view along the rotational axis of a turbo charger using a radial turbine to which the present invention is applied; and FIG. 5(A) is a cross-sectional view in a direction or- thogonal to the axis of a turbine rotor of a tongue portion in a conventional art. FIG. 5(B) is a view obtained when viewed in a direc- tion indicated by an arrow W of FIG. 5(A). BEST MODE FOR CARRYING OUT THE INVENTION [0018] A detailed description is given hereinbelow of the present invention by using embodiments shown in the drawings. Note that the scope of the present invention is not limited only to dimensions, materials, shapes, and relative ar- rangements of constituent parts described in the embod- iments unless specifically described, and they are merely illustrative examples. (First Embodiment) [0019] On the basis of FIG. 1, the schematic structural view of an exhaust gas flow space portion of a scroll portion according to a first embodiment of the present invention is shown. A description is given of a turbine scroll portion according to the first embodiment of the present invention. FIG. 1(A) is a cross-sectional view in a direction orthog- onal to the axis of a turbine rotor of a tongue portion according to the first embodiment of the present inven- tion, while FIG. 1(B) is a view obtained when viewed in a direction indicated by an arrow P of FIG. 1 (A) and is a schematic structural view of a principal portion showing an upper-half section along the rotational axis of each of the scroll portion and the turbine rotor. In FIG. 4 showing the entire structure of a turbo charger using a radial turbine to which the present invention is applied, 01 denotes a turbine housing, 04 denotes a spiral scroll portion formed in the turbine housing 01, 05 de- notes an exhaust gas outlet passage formed in the inner periphery of the turbine housing 01, 06 denotes a com- pressor housing, and 09 denotes a bearing housing which connects the turbine housing 01 and the compres- sor housing 06. [0020] 010 denotes a turbine wheel, and a plurality of rotor blades 03 are fixed to the outer periphery of the turbine wheel 010 at regular intervals in a circumferential direction. 07 denotes a compressor impeller, 08 denotes a diffuser provided at an air exit of the compressor im- peller 07, and 012 denotes a rotor shaft which connects the turbine wheel 010 and the compressor impeller 07. 011 denotes a pair of bearings which are attached to the bearing housing 09 to support the rotor shaft 12. L1 denotes an axial center of rotation of the turbine wheel 010, the compressor impeller, and the rotor shaft 012. [0021] In the above turbo charger with the radial tur- bine described above, exhaust gas from an internal com- bustion engine (not shown) enters into the scroll portion 4 from an exhaust gas inlet, flows into the rotor blade 03 from an entrance end surface on the outer peripheral side of the plurality of rotor blades 03 while spinning along the spiral of the scroll portion 04, flows toward the center of the turbine wheel 010 in a radial direction, performs expansion work on the turbine wheel 010, and then flows in an axial direction to be discharged from the exhaust gas outlet passage 05. [0022] As described above, the basic structure of the turbo charger with the radial turbine is the same as that of the conventional art. In the present invention, the shape of the scroll is im- proved. [0023] In FIG. 1(A), 46 denotes a flow path formed of a turbine housing 1 which causes the exhaust gas from the exhaust gas inlet to flow into a scroll portion 4. 4 denotes the scroll portion formed of the turbine housing 1 which is formed into a spiral shape, converts the ex- haust gas flown in from the flow path 46 into a spiral flow, and causes the exhaust gas to flow into rotor blade 3 via a rotor blade side passage 47. 45 denotes a tongue por- tion which is a connection portion between the flow path 46 and the scroll portion 4 and separates the flow path 46 from the rotor blade side passage 47. The scroll portion 4 includes an outer peripheral wall 15, a front wall 16 (for the convenience of description, the exhaust gas discharge direction is assumed to be "rear"), a rear wall 17, and an inner peripheral wall 18. The scroll portion 4 is formed such that the distance be- tween the front wall 16 and the rear wall 17, i.e., a width B in the direction of the axis L1 is smaller than the distance between the outer peripheral wall 15 and the inner pe- ripheral wall 18, i.e., a width A in a radial direction. The shape of the scroll portion 4 is preferably formed such that a width ratio α between the width A in the radial direction and the width in the direction of the axis L1 sat- isfies1PDF Image | EP 2 657 481 A1 EUROPEAN PATENT APP
PDF Search Title:
EP 2 657 481 A1 EUROPEAN PATENT APPOriginal File Name Searched:
EP2657481A1.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 | RSS | AMP |