Global patent index - EP 1017940 A2

EP 1017940 A2 2000-07-12 - DEVICE FOR SUPPRESSING UNDESIRED IGNITIONS IN A SPARK IGNITION ENGINE

Title (en)

DEVICE FOR SUPPRESSING UNDESIRED IGNITIONS IN A SPARK IGNITION ENGINE

Title (de)

VORRICHTUNG ZUR UNTERDRÜCKUNG UNERWÜNSCHTER ZÜNDUNGEN BEI EINEM OTTOMOTOR

Title (fr)

DISPOSITIF DE SUPPRESSION D'ALLUMAGES PARASITES DANS UN MOTEUR A ESSENCE

Publication

EP 1017940 A2 (DE)

Application

EP 98958159 A

Priority

  • DE 9802830 W
  • DE 19741963 A

Abstract (en)

[origin: DE19741963C1] The device has an ignition coil (7), with its primary winding (7a) arranged in series with an ignition switch (6), switched by a control circuit (1), between the positive terminal and negative terminal of an on-board voltage source (9). The secondary winding (7b) of the coil is connected to at least one spark plug (8). The device also has a series circuit of a capacitor (4), and a resistor (2) connected to the negative terminal (GND) of the voltage source, as well as to a diode (3). The gate (G) of the IGBT-type ignition switch (6) is connected to the control circuit (1) via a first resistor (2). The capacitor (4) is connected on one side with the collector terminal (C) of the ignition switch. The second resistor (5) connected in series is connected to the negative terminal (GND) of the voltage source (9). A diode (3) which conducts current away from the gate (G) is arranged between the gate and the connection point between the capacitor and the resistor.

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

F02P 11/02; F02P 3/045

IPC 8 full level (invention and additional information)

F02P 3/04 (2006.01)

CPC (invention and additional information)

F02P 3/0435 (2013.01)

Citation (search report)

See references of WO 9915788A3

Designated contracting state (EPC)

FR IT

EPO simple patent family

DE 19741963 C1 19990311; EP 1017940 A2 20000712; US 6257216 B1 20010710; WO 9915788 A2 19990401; WO 9915788 A3 19990520

INPADOC legal status

2005-06-01 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20041127

2000-07-12 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000317

2000-07-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): FR IT