EP 1074745 A1 20010207 - Hydraulic machine with automatic control device attached
Title (en)
Hydraulic machine with automatic control device attached
Title (de)
Hydraulische Maschine versehen mit automatischer Steuereinrichtung
Title (fr)
Machine hydraulique munie d'un dispositif de commande automatique
Publication
Application
Priority
IT PI990047 A 19990806
Abstract (en)
The invention relates a hydraulic machine, specifically a pump (2), with automatic control devices attached to its internal water conduits. Said devices register the presence of pressure and flow of the liquid, automatically providing for the activation of the machine when they register a certain pressure and/or flow, and its deactivation when they register a certain pressure and/or in the absence of flow. Such functions are carried out thanks to the data provided by a delivery indicator (5) and a pressure switch (6) attached to the internal water conduits (3) and connected to a control electronic circuit which regulates the machine functioning. The fluid circulates around the external surfaces of the electric tight motor, cooling it. This allows the pump to be very silent. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 13/06 (2006.01); F04D 15/02 (2006.01); F04D 29/58 (2006.01)
CPC (source: EP)
F04D 13/0653 (2013.01); F04D 15/0209 (2013.01); F04D 15/0227 (2013.01); F04D 29/586 (2013.01)
Citation (search report)
- [XY] WO 9836339 A1 19980820 - HYDROSERVICE S R L [IT], et al
- [Y] US 3897178 A 19750729 - PALLOCH HERBERT
- [A] US 5354182 A 19941011 - NIEMIEC ALBIN J [US], et al
- [A] US 5135031 A 19920804 - BURGESS ROY T [US], et al
- [A] US 5738495 A 19980414 - CARMIGNANI CLAUDIO [IT], et al
- [A] WO 9213195 A1 19920806 - JEDRAY PTY LTD [AU]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1074745 A1 20010207; EP 1074745 B1 20050713; AT E299556 T1 20050715; DE 69926123 D1 20050818; DE 69926123 T2 20060601; ES 2245813 T3 20060116; IT 1309857 B1 20020205; IT PI990047 A0 19990806; IT PI990047 A1 20010206
DOCDB simple family (application)
EP 99123319 A 19991123; AT 99123319 T 19991123; DE 69926123 T 19991123; ES 99123319 T 19991123; IT PI990047 A 19990806