Global patent index - EP 1077089 A2

EP 1077089 A2 2001-02-21 - Method for driving liquid drop spraying apparatus

Title (en)

Method for driving liquid drop spraying apparatus

Title (de)

Verfahren zum Ansteueren eines Tropfenerzeugers

Title (fr)

Procédé de commande d'un appareil générateur de gouttes

Publication

EP 1077089 A2 (EN)

Application

EP 00306982 A

Priority

JP 23326399 A

Abstract (en)

In an apparatus for spraying liquid drops, two pressure chambers (10n and lOn-1) having the adjacent nozzle holes (11a), respectively start pressurization from time T1, end pressurization at time T2, and hold its state until T3. Then, pressure reducing is started from time T3, and pressure reducing is ended at time T4, and the cycle for the next pressurization is repeated. In a duration from a time T3 when one pressure chamber (10n) starts pressure reducing to time T5 when the next pressurization is started, time T1 (-1) for starting pressurization of the other pressure chamber (10n-1) is set. In this manner, the flow from one liquid introducing hole (12) back to the common flow path (20) can be reduced when the other introducing hole is subjected to such back flow. When the back flow caused by the other pressure chamber (10n-1) starting pressurization reaches the introducing hole (12) of one of the adjacent pressure chambers 10n, one pressure chamber 10n enters a state in which pressure reducing is started. Liquid inflow due to pressurization is performed smoothly, charging can be completed within a short period of time, and the time per cycle is reduced, whereby a large amount of spraying can be performed. <IMAGE>

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

B05B 12/04; B05B 17/06

IPC 8 full level (invention and additional information)

B05B 17/04 (2006.01); B05B 12/04 (2006.01); B05B 12/08 (2006.01); B05B 17/06 (2006.01); F02M 51/06 (2006.01); F02M 61/02 (2006.01); F23D 11/02 (2006.01); F02M 63/00 (2006.01)

CPC (invention and additional information)

F02M 61/02 (2013.01); B05B 12/085 (2013.01); B05B 17/0607 (2013.01); F02M 51/0603 (2013.01)

Designated contracting state (EPC)

DE FR GB IT SE

EPO simple patent family

EP 1077089 A2 20010221; EP 1077089 A3 20030507; JP 2001054749 A 20010227

INPADOC legal status

2004-08-18 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20031108

2004-01-28 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

- Designated State(s): DE FR GB IT SE

2003-05-07 [AK] DESIGNATED CONTRACTING STATES:

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- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2003-05-07 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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- Extension state: AL LT LV MK RO SI

2003-05-07 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7B 05B 12/04 A

2003-05-07 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7B 05B 17/06 B

2003-05-07 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- IPC: 7F 02M 51/06 B

2001-02-21 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2001-02-21 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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