COMBINED PIEZOELECTRIC IGNITION SYSTEM FOR INTERNAL COMBUSTION ENGINE Russian patent published in 2010 - IPC F02P15/10 F02P3/12 

FIELD: engines and pumps.

SUBSTANCE: invention relates to internal combustion engines (ICE), namely to their ignition systems. Proposed system comprises main ignition system (1) including power source (2), ignition coil (3), pulse generator (4) and firing point shaper (5). It also includes electronic key (6), feedback signal generator (7), and ICE spark plug (8). Piezoelectric ignition system (10) is additionally connected to aforesaid main ignition system (1) (10). Said piezoelectric system consists of piezoelectric generator with piezo elements (11) and loading mechanism (12). Aforesaid firing point shaper (5) is connected with first input of pulse generator (4). Electronic key (6) is connected with the primary of ignition coil (3) and output of pulse generator (4). Input of feedback signal generator (7) is connected to the point of connection between ignition coil (3) and electronic key (6). Output of feedback signal generator (7) is connected to second input of pulse generator. ICE spark plug (8) is connected to secondary of ignition coil (3) and piezoelectric generator with piezo elements (11). Loading mechanism (12) is linked with ICE drive shaft and aforesaid piezoelectric generator. High-voltage diode (9) is arranged between secondary of ignition coil (3) and ICE spark plug (8).

EFFECT: reduced spark formation voltage, higher reliability.

1 cl, 1 dwg