Metered lubricating feed for space vehicle coupling
The use of a memory alloy spring allows the piston to be moved by applying heating current to spring when dose of lubricant is required. The lubricating feed comprises a non-pressurised reservoir (20) communicating with the joint to be lubricated (27) by a tube (220). A piston (23) closes this tube...
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| creator | KARAMATA BORIS |
| description | The use of a memory alloy spring allows the piston to be moved by applying heating current to spring when dose of lubricant is required. The lubricating feed comprises a non-pressurised reservoir (20) communicating with the joint to be lubricated (27) by a tube (220). A piston (23) closes this tube in its rest position. The piston is controlled by a first spring (5) and a second counteracting spring (24) which has shape memory and which is extended by heating. A control (25,26) supplies current (I) to this spring to activate it. An annular ring (7) pressed by a cylindrical spring (6) defines a pumping chamber (22) which is filled by capillary action. When the temperature of the memory spring falls below a threshold, the second spring (24) regains its original shape and the first spring (5) pushes the piston (23) and expels a dose of lubricating fluid (4).
L'invention concerne un système de lubrification d'un mécanisme embarqué (27) dans un engin spatial. Il comprend un réservoir non pressurisé (20) communiquant avec le mécanisme (27) par un tube (220). Un piston (23) referme ce tube (220) au repos. Le piston (23) est commandé par un premier ressort (5) et un second ressort (24), antagoniste, à mémoire de forme, qui s'allongent par effet thermique. Un dispositif de commande (25, 26) alimente en courant (I) ce ressort (24) pour l'actionner. Un élément annulaire (7), poussé par un ressort cylindrique (6), définit une chambre de pompage (22) qui se remplit par capillarité. Lorsque la température du ressort à mémoire de forme (24) retombe en dessous d'un seuil, le ressort (24) reprend sa forme primitive, le premier ressort (5) repousse le piston (23) et expulse une dose de fluide lubrifiant (4). |
| format | Patent |
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L'invention concerne un système de lubrification d'un mécanisme embarqué (27) dans un engin spatial. Il comprend un réservoir non pressurisé (20) communiquant avec le mécanisme (27) par un tube (220). Un piston (23) referme ce tube (220) au repos. Le piston (23) est commandé par un premier ressort (5) et un second ressort (24), antagoniste, à mémoire de forme, qui s'allongent par effet thermique. Un dispositif de commande (25, 26) alimente en courant (I) ce ressort (24) pour l'actionner. Un élément annulaire (7), poussé par un ressort cylindrique (6), définit une chambre de pompage (22) qui se remplit par capillarité. Lorsque la température du ressort à mémoire de forme (24) retombe en dessous d'un seuil, le ressort (24) reprend sa forme primitive, le premier ressort (5) repousse le piston (23) et expulse une dose de fluide lubrifiant (4).</description><edition>6</edition><language>eng ; fre</language><subject>BLASTING ; ENGINEERING ELEMENTS AND UNITS ; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS ; HEATING ; LIGHTING ; LUBRICATING ; MECHANICAL ENGINEERING ; THERMAL INSULATION IN GENERAL ; WEAPONS</subject><creationdate>1999</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=19990312&DB=EPODOC&CC=FR&NR=2768215A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990312&DB=EPODOC&CC=FR&NR=2768215A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KARAMATA BORIS</creatorcontrib><title>Metered lubricating feed for space vehicle coupling</title><description>The use of a memory alloy spring allows the piston to be moved by applying heating current to spring when dose of lubricant is required. The lubricating feed comprises a non-pressurised reservoir (20) communicating with the joint to be lubricated (27) by a tube (220). A piston (23) closes this tube in its rest position. The piston is controlled by a first spring (5) and a second counteracting spring (24) which has shape memory and which is extended by heating. A control (25,26) supplies current (I) to this spring to activate it. An annular ring (7) pressed by a cylindrical spring (6) defines a pumping chamber (22) which is filled by capillary action. When the temperature of the memory spring falls below a threshold, the second spring (24) regains its original shape and the first spring (5) pushes the piston (23) and expels a dose of lubricating fluid (4).
L'invention concerne un système de lubrification d'un mécanisme embarqué (27) dans un engin spatial. Il comprend un réservoir non pressurisé (20) communiquant avec le mécanisme (27) par un tube (220). Un piston (23) referme ce tube (220) au repos. Le piston (23) est commandé par un premier ressort (5) et un second ressort (24), antagoniste, à mémoire de forme, qui s'allongent par effet thermique. Un dispositif de commande (25, 26) alimente en courant (I) ce ressort (24) pour l'actionner. Un élément annulaire (7), poussé par un ressort cylindrique (6), définit une chambre de pompage (22) qui se remplit par capillarité. Lorsque la température du ressort à mémoire de forme (24) retombe en dessous d'un seuil, le ressort (24) reprend sa forme primitive, le premier ressort (5) repousse le piston (23) et expulse une dose de fluide lubrifiant (4).</description><subject>BLASTING</subject><subject>ENGINEERING ELEMENTS AND UNITS</subject><subject>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</subject><subject>HEATING</subject><subject>LIGHTING</subject><subject>LUBRICATING</subject><subject>MECHANICAL ENGINEERING</subject><subject>THERMAL INSULATION IN GENERAL</subject><subject>WEAPONS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1999</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZDD2TS1JLUpNUcgpTSrKTE4sycxLV0hLBQqk5RcpFBckJqcqlKVmZCbnpCok55cW5ADleRhY0xJzilN5oTQ3g4Kba4izh25qQX58KlhPXmpJvFuQkbmZhZGhqaOhMRFKAKLfLAg</recordid><startdate>19990312</startdate><enddate>19990312</enddate><creator>KARAMATA BORIS</creator><scope>EVB</scope></search><sort><creationdate>19990312</creationdate><title>Metered lubricating feed for space vehicle coupling</title><author>KARAMATA BORIS</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_FR2768215A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1999</creationdate><topic>BLASTING</topic><topic>ENGINEERING ELEMENTS AND UNITS</topic><topic>GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS</topic><topic>HEATING</topic><topic>LIGHTING</topic><topic>LUBRICATING</topic><topic>MECHANICAL ENGINEERING</topic><topic>THERMAL INSULATION IN GENERAL</topic><topic>WEAPONS</topic><toplevel>online_resources</toplevel><creatorcontrib>KARAMATA BORIS</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KARAMATA BORIS</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Metered lubricating feed for space vehicle coupling</title><date>1999-03-12</date><risdate>1999</risdate><abstract>The use of a memory alloy spring allows the piston to be moved by applying heating current to spring when dose of lubricant is required. The lubricating feed comprises a non-pressurised reservoir (20) communicating with the joint to be lubricated (27) by a tube (220). A piston (23) closes this tube in its rest position. The piston is controlled by a first spring (5) and a second counteracting spring (24) which has shape memory and which is extended by heating. A control (25,26) supplies current (I) to this spring to activate it. An annular ring (7) pressed by a cylindrical spring (6) defines a pumping chamber (22) which is filled by capillary action. When the temperature of the memory spring falls below a threshold, the second spring (24) regains its original shape and the first spring (5) pushes the piston (23) and expels a dose of lubricating fluid (4).
L'invention concerne un système de lubrification d'un mécanisme embarqué (27) dans un engin spatial. Il comprend un réservoir non pressurisé (20) communiquant avec le mécanisme (27) par un tube (220). Un piston (23) referme ce tube (220) au repos. Le piston (23) est commandé par un premier ressort (5) et un second ressort (24), antagoniste, à mémoire de forme, qui s'allongent par effet thermique. Un dispositif de commande (25, 26) alimente en courant (I) ce ressort (24) pour l'actionner. Un élément annulaire (7), poussé par un ressort cylindrique (6), définit une chambre de pompage (22) qui se remplit par capillarité. Lorsque la température du ressort à mémoire de forme (24) retombe en dessous d'un seuil, le ressort (24) reprend sa forme primitive, le premier ressort (5) repousse le piston (23) et expulse une dose de fluide lubrifiant (4).</abstract><edition>6</edition><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre |
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| subjects | BLASTING ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LUBRICATING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS |
| title | Metered lubricating feed for space vehicle coupling |
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