IT1255904B - VALVES ARRANGEMENT FOR INDEPENDENT CONTROL FROM THE LOAD OF MULTIPLE HYDRAULIC USES - Google Patents
VALVES ARRANGEMENT FOR INDEPENDENT CONTROL FROM THE LOAD OF MULTIPLE HYDRAULIC USESInfo
- Publication number
- IT1255904B IT1255904B ITMI922426A ITMI922426A IT1255904B IT 1255904 B IT1255904 B IT 1255904B IT MI922426 A ITMI922426 A IT MI922426A IT MI922426 A ITMI922426 A IT MI922426A IT 1255904 B IT1255904 B IT 1255904B
- Authority
- IT
- Italy
- Prior art keywords
- independent control
- multiple hydraulic
- load
- refueling
- valves
- Prior art date
Links
Abstract
L'invenzione concerne una disposizione di valvole per il rifornimento con mezzo compresso di utilizzi in sistemi di comando idraulici per il comando indipendente dal carico di più utilizzi idraulici azionati contemporaneamente, nei quali il rapporto tra i flussi parziali una volta impostati rimane uguale nel caso di rifornimento in difetto con mezzo compresso del sistema. Quando le richieste degli utilizzi superano la massima portata della pompa di regolazione, gli utilizzi prioritari ricevono la loro quantità richiesta, mentre gli utilizzi secondari ricevono una quantità ridotta, in quanto la pressione di comando per gli utilizzi secondari viene commutata su un livello di pressione più basso attraverso una valvola a vie ed una valvola di delimitazione di pressione. Appena nel caso di rifornimento in difetto del sistema complessivo, cioè quando la massimaThe invention relates to an arrangement of valves for refueling with compressed means of uses in hydraulic control systems for independent control of multiple hydraulic uses operated simultaneously, in which the ratio between the partial flows once set remains the same in the case of failure to supply with compressed means of the system. When the demands of the uses exceed the maximum flow rate of the regulation pump, the priority uses receive their required quantity, while the secondary uses receive a reduced quantity, as the control pressure for the secondary uses is switched to a pressure level more low through a way valve and a pressure limiting valve. Just in the case of refueling in the absence of the overall system, ie when the maximum
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4135836 | 1991-10-30 | ||
DE4137963A DE4137963C2 (en) | 1991-10-30 | 1991-11-19 | Valve arrangement for load-independent control of several hydraulic consumers |
Publications (3)
Publication Number | Publication Date |
---|---|
ITMI922426A0 ITMI922426A0 (en) | 1992-10-23 |
ITMI922426A1 ITMI922426A1 (en) | 1994-04-23 |
IT1255904B true IT1255904B (en) | 1995-11-17 |
Family
ID=25908676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ITMI922426A IT1255904B (en) | 1991-10-30 | 1992-10-23 | VALVES ARRANGEMENT FOR INDEPENDENT CONTROL FROM THE LOAD OF MULTIPLE HYDRAULIC USES |
Country Status (2)
Country | Link |
---|---|
JP (1) | JPH05240208A (en) |
IT (1) | IT1255904B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006007935A1 (en) | 2006-02-21 | 2007-10-25 | Liebherr France Sas | Control device and hydraulic pilot control |
JP5066987B2 (en) * | 2007-04-10 | 2012-11-07 | コベルコ建機株式会社 | Hydraulic control device of excavator |
-
1992
- 1992-10-23 IT ITMI922426A patent/IT1255904B/en active IP Right Grant
- 1992-10-29 JP JP29105292A patent/JPH05240208A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
JPH05240208A (en) | 1993-09-17 |
ITMI922426A0 (en) | 1992-10-23 |
ITMI922426A1 (en) | 1994-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
0001 | Granted | ||
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19961029 |