Low-load start-up hydraulic system for controlling rotation of a railroad car body

A hydraulic system (1) for controlling rotation of a railroad car body (2), and presenting a motor pump assembly (8) connected to a hydraulic fluid tank (7) and to a supply line (14); a number of hydraulic actuators (3a, 3b, 4a, 4b) for exerting mechanical force on the body (2) to rotate it; a solen...

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Hauptverfasser:	JACAZIO, GIOVANNI, BALOSSINI, GUALTIERO, BOZZOLA, PIERO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	PERFORMING OPERATIONS PREVENTING DERAILING OF RAIL VEHICLES RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH RAILWAYS TRANSPORTING WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES
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creator	JACAZIO, GIOVANNI BALOSSINI, GUALTIERO BOZZOLA, PIERO
description	A hydraulic system (1) for controlling rotation of a railroad car body (2), and presenting a motor pump assembly (8) connected to a hydraulic fluid tank (7) and to a supply line (14); a number of hydraulic actuators (3a, 3b, 4a, 4b) for exerting mechanical force on the body (2) to rotate it; a solenoid valve (26) for selectively connecting the hydraulic actuators (3a, 3b, 4a, 4b) to the supply line (14) or to a drain (29) in response to electric control signals; and a bypass start valve (64) for depressurizing the supply line (14) during start-up of the motor pump assembly (8); the bypass start valve (64) being a purely hydraulically operated, normally-open valve, which switches automatically when supply from the motor pump assembly (8) reaches a predetermined threshold value.
format	Patent
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a number of hydraulic actuators (3a, 3b, 4a, 4b) for exerting mechanical force on the body (2) to rotate it; a solenoid valve (26) for selectively connecting the hydraulic actuators (3a, 3b, 4a, 4b) to the supply line (14) or to a drain (29) in response to electric control signals; and a bypass start valve (64) for depressurizing the supply line (14) during start-up of the motor pump assembly (8); the bypass start valve (64) being a purely hydraulically operated, normally-open valve, which switches automatically when supply from the motor pump assembly (8) reaches a predetermined threshold value.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>PERFORMING OPERATIONS ; PREVENTING DERAILING OF RAIL VEHICLES ; RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES ; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH ; RAILWAYS ; TRANSPORTING ; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES</subject><creationdate>1996</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=19960529&DB=EPODOC&CC=EP&NR=0713815A1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19960529&DB=EPODOC&CC=EP&NR=0713815A1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>JACAZIO, GIOVANNI</creatorcontrib><creatorcontrib>BALOSSINI, GUALTIERO</creatorcontrib><creatorcontrib>BOZZOLA, PIERO</creatorcontrib><title>Low-load start-up hydraulic system for controlling rotation of a railroad car body</title><description>A hydraulic system (1) for controlling rotation of a railroad car body (2), and presenting a motor pump assembly (8) connected to a hydraulic fluid tank (7) and to a supply line (14); 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BALOSSINI, GUALTIERO ; BOZZOLA, PIERO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP0713815A13</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>1996</creationdate><topic>PERFORMING OPERATIONS</topic><topic>PREVENTING DERAILING OF RAIL VEHICLES</topic><topic>RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES</topic><topic>RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH</topic><topic>RAILWAYS</topic><topic>TRANSPORTING</topic><topic>WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES</topic><toplevel>online_resources</toplevel><creatorcontrib>JACAZIO, GIOVANNI</creatorcontrib><creatorcontrib>BALOSSINI, GUALTIERO</creatorcontrib><creatorcontrib>BOZZOLA, PIERO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>JACAZIO, GIOVANNI</au><au>BALOSSINI, GUALTIERO</au><au>BOZZOLA, PIERO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Low-load start-up hydraulic system for controlling rotation of a railroad car body</title><date>1996-05-29</date><risdate>1996</risdate><abstract>A hydraulic system (1) for controlling rotation of a railroad car body (2), and presenting a motor pump assembly (8) connected to a hydraulic fluid tank (7) and to a supply line (14); a number of hydraulic actuators (3a, 3b, 4a, 4b) for exerting mechanical force on the body (2) to rotate it; a solenoid valve (26) for selectively connecting the hydraulic actuators (3a, 3b, 4a, 4b) to the supply line (14) or to a drain (29) in response to electric control signals; and a bypass start valve (64) for depressurizing the supply line (14) during start-up of the motor pump assembly (8); the bypass start valve (64) being a purely hydraulically operated, normally-open valve, which switches automatically when supply from the motor pump assembly (8) reaches a predetermined threshold value.</abstract><edition>6</edition><oa>free_for_read</oa></addata></record>
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language	eng ; fre ; ger
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subjects	PERFORMING OPERATIONS PREVENTING DERAILING OF RAIL VEHICLES RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES ORARRANGEMENTS OF WHEEL AXLES RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH RAILWAYS TRANSPORTING WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAILVEHICLES
title	Low-load start-up hydraulic system for controlling rotation of a railroad car body
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