EP 0390627 A1 19901003 - Motor-pump unit with pressure and flow sensors.
Title (en)
Motor-pump unit with pressure and flow sensors.
Title (de)
Motorpumpengruppe mit Druck- und Förderstromsensoren.
Title (fr)
Groupe motopompe à capteurs de pression et de débit.
Publication
Application
Priority
FR 8904243 A 19890331
Abstract (en)
A pump (1) with delivery pipework (2), a variable speed gear (4) causing the pump (1) to rotate and a start-stop circuit (7) for the variable speed gear (4), together with an analog pressure transducer (6) controlling the variable speed gear (4) and a flow transducer (5) controlling the start-stop circuit (7). <IMAGE>
IPC 1-7
IPC 8 full level
F04D 15/00 (2006.01)
CPC (source: EP)
F04D 15/0066 (2013.01)
Citation (search report)
- [X] US 2741986 A 19560417 - SMITH MARSDEN C
- [X] PUMPS, POMPES, PUMPEN. no. 10, octobre 1984, MORDEN GB pages 361 - 366; E.STYGAR: "The use of electronics in centrifugal pumps"
- [A] PATENT ABSTRACTS OF JAPAN vol. 3, no. 93 (M-68)(141) 8 août 1979, & JP-A-54 69802 (HITACHI SEISAKUSHO) 5 mai 1979,
- [A] PATENT ABSTRACTS OF JAPAN vol. 12, no. 121 (M-686)(2968) 15 avril 1988, & JP-A-62 248897 (SHINDO PUMP) 29 octobre 1987,
Designated contracting state (EPC)
BE DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0390627 A1 19901003; EP 0390627 B1 19940601; DE 69009272 D1 19940707; DE 69009272 T2 19950126; FR 2645213 A1 19901005
DOCDB simple family (application)
EP 90400653 A 19900313; DE 69009272 T 19900313; FR 8904243 A 19890331