AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR
PROBLEM TO BE SOLVED: To provide an axial-flow compressor including dovetails capable of reducing partial contact with a wheel dovetail, leveling loads asymmetrical between a forward direction of a blade rotation direction and a direction opposite to the rotation direction, and reducing high stress...
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| creator | TAKAHASHI YASUO SEKIHARA TAKASHI |
| description | PROBLEM TO BE SOLVED: To provide an axial-flow compressor including dovetails capable of reducing partial contact with a wheel dovetail, leveling loads asymmetrical between a forward direction of a blade rotation direction and a direction opposite to the rotation direction, and reducing high stress acting on rotor blades.SOLUTION: An axial-flow compressor including rotor blades and stationary vanes compressing the air drawn in from the atmosphere as a working fluid; and a wheel fixing the rotor blades and a casing fixing the stationary vanes, comprises: a wheel dovetail processed on an outer circumferential surface of the wheel, the wheel dovetail having a constant angle with respect to a rotary shaft of the axial-flow compressor; and blade dovetails processed on inner circumferences of the respective rotor blades to be fixedly fitted into the wheel dovetail, cut surfaces obtained by cutting part of the blade dovetail into a planar shape, cut surfaces being formed on the blade dovetails on at least either upstream of the blade dovetails or downstream of the blade dovetails.SELECTED DRAWING: Figure 1
【課題】ホイールダブテールへの片当りを軽減して動翼回転方向の順方向と反回転方向とで非対称となる負荷の平準化を図り、動翼に作用する高応力を低減する動翼ダブテールを備えた軸流圧縮機を提供する。【解決手段】大気から吸い込んだ空気を作動流体として圧縮する動翼および静翼と、前記動翼を固定するホイールおよび前記静翼を固定するケーシングを備えた軸流圧縮機であって、前記ホイールの外周面に軸流圧縮機の回転軸に対して一定の角度を有して加工されたホイールダブテールと、このホイールダブテールに嵌合されることで固定される前記動翼の内周側に加工された動翼ダブテールとを備え、前記動翼ダブテールの上流側及び動翼ダブテールの下流側の少なくとも一方側となる動翼ダブテールに、前記動翼ダブテールの一部を面状にカットしたカット面を形成して構成した軸流圧縮機。【選択図】図１ |
| format | Patent |
| fullrecord | <record><control><sourceid>epo_EVB</sourceid><recordid>TN_cdi_epo_espacenet_JP2016035209A</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>JP2016035209A</sourcerecordid><originalsourceid>FETCH-epo_espacenet_JP2016035209A3</originalsourceid><addsrcrecordid>eNrjZHBwjPB09NF18_EPV3D29w0Icg0O9g9ScPRzUXB3DFYICQ1y8vRzVQj3DPFQwKqUh4E1LTGnOJUXSnMzKLm5hjh76KYW5MenFhckJqfmpZbEewUYGRiaGRibGhlYOhoTpQgADQ0rOA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>patent</recordtype></control><display><type>patent</type><title>AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR</title><source>esp@cenet</source><creator>TAKAHASHI YASUO ; SEKIHARA TAKASHI</creator><creatorcontrib>TAKAHASHI YASUO ; SEKIHARA TAKASHI</creatorcontrib><description>PROBLEM TO BE SOLVED: To provide an axial-flow compressor including dovetails capable of reducing partial contact with a wheel dovetail, leveling loads asymmetrical between a forward direction of a blade rotation direction and a direction opposite to the rotation direction, and reducing high stress acting on rotor blades.SOLUTION: An axial-flow compressor including rotor blades and stationary vanes compressing the air drawn in from the atmosphere as a working fluid; and a wheel fixing the rotor blades and a casing fixing the stationary vanes, comprises: a wheel dovetail processed on an outer circumferential surface of the wheel, the wheel dovetail having a constant angle with respect to a rotary shaft of the axial-flow compressor; and blade dovetails processed on inner circumferences of the respective rotor blades to be fixedly fitted into the wheel dovetail, cut surfaces obtained by cutting part of the blade dovetail into a planar shape, cut surfaces being formed on the blade dovetails on at least either upstream of the blade dovetails or downstream of the blade dovetails.SELECTED DRAWING: Figure 1
【課題】ホイールダブテールへの片当りを軽減して動翼回転方向の順方向と反回転方向とで非対称となる負荷の平準化を図り、動翼に作用する高応力を低減する動翼ダブテールを備えた軸流圧縮機を提供する。【解決手段】大気から吸い込んだ空気を作動流体として圧縮する動翼および静翼と、前記動翼を固定するホイールおよび前記静翼を固定するケーシングを備えた軸流圧縮機であって、前記ホイールの外周面に軸流圧縮機の回転軸に対して一定の角度を有して加工されたホイールダブテールと、このホイールダブテールに嵌合されることで固定される前記動翼の内周側に加工された動翼ダブテールとを備え、前記動翼ダブテールの上流側及び動翼ダブテールの下流側の少なくとも一方側となる動翼ダブテールに、前記動翼ダブテールの一部を面状にカットしたカット面を形成して構成した軸流圧縮機。【選択図】図１</description><language>eng ; jpn</language><subject>AIR INTAKES FOR JET-PROPULSION PLANTS ; BLASTING ; COMBUSTION ENGINES ; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ; ENGINE PLANTS IN GENERAL ; GAS-TURBINE PLANTS ; HEATING ; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS ; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS ; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 ; LIGHTING ; MACHINES OR ENGINES IN GENERAL ; MECHANICAL ENGINEERING ; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES ; NON-POSITIVE DISPLACEMENT PUMPS ; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS ; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS ; STEAM ENGINES ; WEAPONS</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160317&DB=EPODOC&CC=JP&NR=2016035209A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160317&DB=EPODOC&CC=JP&NR=2016035209A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKAHASHI YASUO</creatorcontrib><creatorcontrib>SEKIHARA TAKASHI</creatorcontrib><title>AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR</title><description>PROBLEM TO BE SOLVED: To provide an axial-flow compressor including dovetails capable of reducing partial contact with a wheel dovetail, leveling loads asymmetrical between a forward direction of a blade rotation direction and a direction opposite to the rotation direction, and reducing high stress acting on rotor blades.SOLUTION: An axial-flow compressor including rotor blades and stationary vanes compressing the air drawn in from the atmosphere as a working fluid; and a wheel fixing the rotor blades and a casing fixing the stationary vanes, comprises: a wheel dovetail processed on an outer circumferential surface of the wheel, the wheel dovetail having a constant angle with respect to a rotary shaft of the axial-flow compressor; and blade dovetails processed on inner circumferences of the respective rotor blades to be fixedly fitted into the wheel dovetail, cut surfaces obtained by cutting part of the blade dovetail into a planar shape, cut surfaces being formed on the blade dovetails on at least either upstream of the blade dovetails or downstream of the blade dovetails.SELECTED DRAWING: Figure 1
【課題】ホイールダブテールへの片当りを軽減して動翼回転方向の順方向と反回転方向とで非対称となる負荷の平準化を図り、動翼に作用する高応力を低減する動翼ダブテールを備えた軸流圧縮機を提供する。【解決手段】大気から吸い込んだ空気を作動流体として圧縮する動翼および静翼と、前記動翼を固定するホイールおよび前記静翼を固定するケーシングを備えた軸流圧縮機であって、前記ホイールの外周面に軸流圧縮機の回転軸に対して一定の角度を有して加工されたホイールダブテールと、このホイールダブテールに嵌合されることで固定される前記動翼の内周側に加工された動翼ダブテールとを備え、前記動翼ダブテールの上流側及び動翼ダブテールの下流側の少なくとも一方側となる動翼ダブテールに、前記動翼ダブテールの一部を面状にカットしたカット面を形成して構成した軸流圧縮機。【選択図】図１</description><subject>AIR INTAKES FOR JET-PROPULSION PLANTS</subject><subject>BLASTING</subject><subject>COMBUSTION ENGINES</subject><subject>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</subject><subject>ENGINE PLANTS IN GENERAL</subject><subject>GAS-TURBINE PLANTS</subject><subject>HEATING</subject><subject>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</subject><subject>INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS</subject><subject>INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04</subject><subject>LIGHTING</subject><subject>MACHINES OR ENGINES IN GENERAL</subject><subject>MECHANICAL ENGINEERING</subject><subject>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</subject><subject>NON-POSITIVE DISPLACEMENT PUMPS</subject><subject>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</subject><subject>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</subject><subject>STEAM ENGINES</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZHBwjPB09NF18_EPV3D29w0Icg0O9g9ScPRzUXB3DFYICQ1y8vRzVQj3DPFQwKqUh4E1LTGnOJUXSnMzKLm5hjh76KYW5MenFhckJqfmpZbEewUYGRiaGRibGhlYOhoTpQgADQ0rOA</recordid><startdate>20160317</startdate><enddate>20160317</enddate><creator>TAKAHASHI YASUO</creator><creator>SEKIHARA TAKASHI</creator><scope>EVB</scope></search><sort><creationdate>20160317</creationdate><title>AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR</title><author>TAKAHASHI YASUO ; SEKIHARA TAKASHI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2016035209A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2016</creationdate><topic>AIR INTAKES FOR JET-PROPULSION PLANTS</topic><topic>BLASTING</topic><topic>COMBUSTION ENGINES</topic><topic>CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS</topic><topic>ENGINE PLANTS IN GENERAL</topic><topic>GAS-TURBINE PLANTS</topic><topic>HEATING</topic><topic>HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS</topic><topic>INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS</topic><topic>INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04</topic><topic>LIGHTING</topic><topic>MACHINES OR ENGINES IN GENERAL</topic><topic>MECHANICAL ENGINEERING</topic><topic>NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES</topic><topic>NON-POSITIVE DISPLACEMENT PUMPS</topic><topic>POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS</topic><topic>PUMPS FOR LIQUIDS OR ELASTIC FLUIDS</topic><topic>STEAM ENGINES</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKAHASHI YASUO</creatorcontrib><creatorcontrib>SEKIHARA TAKASHI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKAHASHI YASUO</au><au>SEKIHARA TAKASHI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR</title><date>2016-03-17</date><risdate>2016</risdate><abstract>PROBLEM TO BE SOLVED: To provide an axial-flow compressor including dovetails capable of reducing partial contact with a wheel dovetail, leveling loads asymmetrical between a forward direction of a blade rotation direction and a direction opposite to the rotation direction, and reducing high stress acting on rotor blades.SOLUTION: An axial-flow compressor including rotor blades and stationary vanes compressing the air drawn in from the atmosphere as a working fluid; and a wheel fixing the rotor blades and a casing fixing the stationary vanes, comprises: a wheel dovetail processed on an outer circumferential surface of the wheel, the wheel dovetail having a constant angle with respect to a rotary shaft of the axial-flow compressor; and blade dovetails processed on inner circumferences of the respective rotor blades to be fixedly fitted into the wheel dovetail, cut surfaces obtained by cutting part of the blade dovetail into a planar shape, cut surfaces being formed on the blade dovetails on at least either upstream of the blade dovetails or downstream of the blade dovetails.SELECTED DRAWING: Figure 1
【課題】ホイールダブテールへの片当りを軽減して動翼回転方向の順方向と反回転方向とで非対称となる負荷の平準化を図り、動翼に作用する高応力を低減する動翼ダブテールを備えた軸流圧縮機を提供する。【解決手段】大気から吸い込んだ空気を作動流体として圧縮する動翼および静翼と、前記動翼を固定するホイールおよび前記静翼を固定するケーシングを備えた軸流圧縮機であって、前記ホイールの外周面に軸流圧縮機の回転軸に対して一定の角度を有して加工されたホイールダブテールと、このホイールダブテールに嵌合されることで固定される前記動翼の内周側に加工された動翼ダブテールとを備え、前記動翼ダブテールの上流側及び動翼ダブテールの下流側の少なくとも一方側となる動翼ダブテールに、前記動翼ダブテールの一部を面状にカットしたカット面を形成して構成した軸流圧縮機。【選択図】図１</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | AIR INTAKES FOR JET-PROPULSION PLANTS BLASTING COMBUSTION ENGINES CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS ENGINE PLANTS IN GENERAL GAS-TURBINE PLANTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04 LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS STEAM ENGINES WEAPONS |
| title | AXIAL-FLOW COMPRESSOR AND GAS TURBINE WITH AXIAL-FLOW COMPRESSOR |
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