Ignition system in dual spark plug ignition engine with EGR syst

Details Ignition system in dual spark plug ignition engine with EGR syst Ignition system in dual spark plug ignition engine with EGR syst

1978-04-27

1981-01-06

Lall, P. S.

Internal-combustion engines

High tension ignition system

Multiple spark ignition system

123310, 123179BG, 123568, F02P 1502, F02B 3500, F02N 1708

Patent

active

042430054

ABSTRACT:
A dual spark plug ignition engine with an EGR system is provided with an ignition system which is arranged to achieve single spark plug ignition by sensing a considerably low intake vacuum which represents high power output engine operating range. The engine is further provided with an engine starting sensing switch to cause the ignition system to carry out dual spark plug ignition during engine starting although the intake vacuum is considerably low as at the high power output engine operating range.

REFERENCES:
patent: 1940614 (1933-12-01), Walters
patent: 3407797 (1968-10-01), Ishibashi
patent: 3779349 (1973-12-01), Maruoka
patent: 3809042 (1974-05-01), Hosho et al.
patent: 3828752 (1974-08-01), Hioki et al.
patent: 3970049 (1976-07-01), Yamaguchi et al.
patent: 4116179 (1978-09-01), Nagumo et al.
patent: 4116181 (1978-09-01), Nakajima et al.
patent: 4133330 (1979-01-01), Nakajima et al.

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