Fluid dynamic bearing system used in spindle motor for driving storage disk of hard disk drive, has pumping seal whose groove structures are arranged on opening of extended axial portion of sealing structure
The system has fixed bearing elements (12,16,18) and movable bearing element (14) that are located within a container. A gap (20), which is formed between the fixed and movable bearing elements, is filled with bearing fluid. The fluid gap is sealed by the respective sealing structures (32,34). A por...
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| creator | ENGESSER, MARTIN FUSS, THOMAS |
| description | The system has fixed bearing elements (12,16,18) and movable bearing element (14) that are located within a container. A gap (20), which is formed between the fixed and movable bearing elements, is filled with bearing fluid. The fluid gap is sealed by the respective sealing structures (32,34). A portion of sealing structure (32) is extended along an axial direction. Several groove structures (36a) of pumping seal (36) are arranged on the opening of extended axial portion of sealing structure (32). Independent claims are included for the following: (1) spindle motor; and (2) hard disk drive.
Die Erfindung betrifft ein fluiddynamisches Lagersystem, das ein feststehendes Lagerbauteil und ein bewegliches Lagerbauteil umfasst, die durch einen mit einem Lagerfluid gefüllten Lagerspalt voneinander getrennt und um eine Rotationsachse relativ zueinander drehgelagert sind. Der Lagerspalt ist durch erste und zweite Dichtungsspalte abgedichtet, wobei der erste Dichtungsspalt einen im wesentlichen axial verlaufenden Abschnitt mit einem offenen Ende aufweist, entlang welchem eine Pumpdichtung mit Pumprillenstrukturen angeordnet ist. Erfindungsgemäß sind die Rillenstrukturen der Pumpdichtung in einem definierten Abstand zum offenen Ende des axial verlaufenden Abschnittes des ersten Dichtungsspalts angeordnet. |
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Die Erfindung betrifft ein fluiddynamisches Lagersystem, das ein feststehendes Lagerbauteil und ein bewegliches Lagerbauteil umfasst, die durch einen mit einem Lagerfluid gefüllten Lagerspalt voneinander getrennt und um eine Rotationsachse relativ zueinander drehgelagert sind. Der Lagerspalt ist durch erste und zweite Dichtungsspalte abgedichtet, wobei der erste Dichtungsspalt einen im wesentlichen axial verlaufenden Abschnitt mit einem offenen Ende aufweist, entlang welchem eine Pumpdichtung mit Pumprillenstrukturen angeordnet ist. Erfindungsgemäß sind die Rillenstrukturen der Pumpdichtung in einem definierten Abstand zum offenen Ende des axial verlaufenden Abschnittes des ersten Dichtungsspalts angeordnet.</description><language>eng ; ger</language><subject>BEARINGS ; BLASTING ; ELEMENTS OR CRANKSHAFT MECHANISMS ; ENGINEERING ELEMENTS AND UNITS ; FLEXIBLE SHAFTS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; INFORMATION STORAGE ; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER ; LIGHTING ; MECHANICAL ENGINEERING ; PHYSICS ; ROTARY BODIES OTHER THAN GEARING ELEMENTS ; SHAFTS ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>2012</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=20120927&DB=EPODOC&CC=DE&NR=102011015121A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76419</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20120927&DB=EPODOC&CC=DE&NR=102011015121A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>ENGESSER, MARTIN</creatorcontrib><creatorcontrib>FUSS, THOMAS</creatorcontrib><title>Fluid dynamic bearing system used in spindle motor for driving storage disk of hard disk drive, has pumping seal whose groove structures are arranged on opening of extended axial portion of sealing structure</title><description>The system has fixed bearing elements (12,16,18) and movable bearing element (14) that are located within a container. A gap (20), which is formed between the fixed and movable bearing elements, is filled with bearing fluid. The fluid gap is sealed by the respective sealing structures (32,34). A portion of sealing structure (32) is extended along an axial direction. Several groove structures (36a) of pumping seal (36) are arranged on the opening of extended axial portion of sealing structure (32). Independent claims are included for the following: (1) spindle motor; and (2) hard disk drive.
Die Erfindung betrifft ein fluiddynamisches Lagersystem, das ein feststehendes Lagerbauteil und ein bewegliches Lagerbauteil umfasst, die durch einen mit einem Lagerfluid gefüllten Lagerspalt voneinander getrennt und um eine Rotationsachse relativ zueinander drehgelagert sind. Der Lagerspalt ist durch erste und zweite Dichtungsspalte abgedichtet, wobei der erste Dichtungsspalt einen im wesentlichen axial verlaufenden Abschnitt mit einem offenen Ende aufweist, entlang welchem eine Pumpdichtung mit Pumprillenstrukturen angeordnet ist. Erfindungsgemäß sind die Rillenstrukturen der Pumpdichtung in einem definierten Abstand zum offenen Ende des axial verlaufenden Abschnittes des ersten Dichtungsspalts angeordnet.</description><subject>BEARINGS</subject><subject>BLASTING</subject><subject>ELEMENTS OR CRANKSHAFT MECHANISMS</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>FLEXIBLE SHAFTS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>INFORMATION STORAGE</subject><subject>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</subject><subject>LIGHTING</subject><subject>MECHANICAL ENGINEERING</subject><subject>PHYSICS</subject><subject>ROTARY BODIES OTHER THAN GEARING ELEMENTS</subject><subject>SHAFTS</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2012</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNjkFOw0AMRbNhgQp38IZdkTJFHABBKw7AvjKZn3TUZDyyZ0p7Sq7EJO0BWHxZ_nr_2_fN724swZO_RJ5CR99gDXEgu1jGRMXgKUSyFKIfQZNkUeqrvIbTAlaDB5APdiTp6cDqr8tMYF0No1SmtMDgkX4OYqBBRU6ocS1dLgojVlQpx6HelEiSEOdQLcU5I_pq8znUhiSaw0z0S-P1jVvPQ3PX82h4vM1V87Tbfr1_PiPJHpa4Q0Tef2xdu2mda92r27g39_Jf7g9MpWh6</recordid><startdate>20120927</startdate><enddate>20120927</enddate><creator>ENGESSER, MARTIN</creator><creator>FUSS, THOMAS</creator><scope>EVB</scope></search><sort><creationdate>20120927</creationdate><title>Fluid dynamic bearing system used in spindle motor for driving storage disk of hard disk drive, has pumping seal whose groove structures are arranged on opening of extended axial portion of sealing structure</title><author>ENGESSER, MARTIN ; FUSS, THOMAS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_DE102011015121A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; ger</language><creationdate>2012</creationdate><topic>BEARINGS</topic><topic>BLASTING</topic><topic>ELEMENTS OR CRANKSHAFT MECHANISMS</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>FLEXIBLE SHAFTS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>INFORMATION STORAGE</topic><topic>INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER</topic><topic>LIGHTING</topic><topic>MECHANICAL ENGINEERING</topic><topic>PHYSICS</topic><topic>ROTARY BODIES OTHER THAN GEARING ELEMENTS</topic><topic>SHAFTS</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>ENGESSER, MARTIN</creatorcontrib><creatorcontrib>FUSS, THOMAS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>ENGESSER, MARTIN</au><au>FUSS, THOMAS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Fluid dynamic bearing system used in spindle motor for driving storage disk of hard disk drive, has pumping seal whose groove structures are arranged on opening of extended axial portion of sealing structure</title><date>2012-09-27</date><risdate>2012</risdate><abstract>The system has fixed bearing elements (12,16,18) and movable bearing element (14) that are located within a container. A gap (20), which is formed between the fixed and movable bearing elements, is filled with bearing fluid. The fluid gap is sealed by the respective sealing structures (32,34). A portion of sealing structure (32) is extended along an axial direction. Several groove structures (36a) of pumping seal (36) are arranged on the opening of extended axial portion of sealing structure (32). Independent claims are included for the following: (1) spindle motor; and (2) hard disk drive.
Die Erfindung betrifft ein fluiddynamisches Lagersystem, das ein feststehendes Lagerbauteil und ein bewegliches Lagerbauteil umfasst, die durch einen mit einem Lagerfluid gefüllten Lagerspalt voneinander getrennt und um eine Rotationsachse relativ zueinander drehgelagert sind. Der Lagerspalt ist durch erste und zweite Dichtungsspalte abgedichtet, wobei der erste Dichtungsspalt einen im wesentlichen axial verlaufenden Abschnitt mit einem offenen Ende aufweist, entlang welchem eine Pumpdichtung mit Pumprillenstrukturen angeordnet ist. Erfindungsgemäß sind die Rillenstrukturen der Pumpdichtung in einem definierten Abstand zum offenen Ende des axial verlaufenden Abschnittes des ersten Dichtungsspalts angeordnet.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BEARINGS BLASTING ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER LIGHTING MECHANICAL ENGINEERING PHYSICS ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS THERMAL INSULATION IN GENERAL WEAPONS |
| title | Fluid dynamic bearing system used in spindle motor for driving storage disk of hard disk drive, has pumping seal whose groove structures are arranged on opening of extended axial portion of sealing structure |
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