Global Patent Index - EP 1256724 A1

EP 1256724 A1 2002-11-13 - Motor pump unit with delayed starting

Title (en)

Motor pump unit with delayed starting

Title (de)

Motorpumpengruppe mit verzögertem Wiederanlaufen

Title (fr)

Groupe motopompe à temporisation de la mise sous tension du moteur

Publication

EP 1256724 A1 (FR)

Application

EP 02290926 A

Priority

FR 0106107 A

Abstract (en)

Uses a microcontroller with motor (M1) timer inactivation (13/1) which operates when the motor is connected to the voltage supply after the longest elapsed time set by the timer. The device (13/1) also deactivates the timer following at least 4 times in which a timer substractor has not started an intermediate action. Motor/pump group (1) including a pump (P1) driven by an electric motor (M1) controlled by a microcontroller (E1) integrated in the group (1). The microcontroller connects the motor to the voltage supply when it receives a signal from a fluid level sensor (CN1) and disconnects the voltage supply when it receives a signal from a stop sensor (CA1). The microcontroller includes a timer (13/1) designed to delay the application of supply voltage to the motor for a time duration randomly chosen from amongst progressive increasing time steps. A time decrement (D1) is designed to reduce the timed step for each signal received from a liquid level sensor (CN1) during which the voltage supply is not applied to the motor.

Abstract (fr)

Ce groupe motopompe comprend une pompe entraînée par un moteur M1 électrique commandé par un micro-contrôleur E1 qui le met sous tension par des signaux qu'il reçoit d'un détecteur de niveau (CN1) et hors tension par des signaux qu'il reçoit d'un détecteur d'arrêt (CA1). Le micro-contrôleur comprend des moyens de temporisation et des moyens de décrémentation destinés à diminuer d'un pas la durée de temporisation. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04D 15/02

IPC 8 full level (invention and additional information)

F04D 15/02 (2006.01)

CPC (invention and additional information)

F04D 15/029 (2013.01); F04D 15/0218 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

EP 1256724 A1 20021113; EP 1256724 B1 20060726; AT 334312 T 20060815; DE 60213316 D1 20060907; DE 60213316 T2 20080228; DK 1256724 T3 20060904; ES 2265479 T3 20070216; FR 2824601 A1 20021115; FR 2824601 B1 20030808; PT 1256724 E 20061229

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