Internal-combustion engines – High tension ignition system – Having specific trigger circuitry
Patent
1999-06-09
2000-10-17
Yuen, Henry C.
Internal-combustion engines
High tension ignition system
Having specific trigger circuitry
123623, 123637, 123625, F02P 304
Patent
active
061315559
ABSTRACT:
A system for controlling ignition energy of an internal combustion engine includes an ignition coil having a primary coil and a secondary coil coupled to first and second electrodes of an ignition plug defining a spark gap therebetween, wherein the primary coil is operable to induce a spark voltage across the secondary coil and across the spark gap. The secondary coil is responsive to the spark voltage to produce a discharge current across the spark gap of the ignition plug. In accordance with one aspect of the invention, means are provided for controllably shunting the primary coil to thereby control the duration of discharge current across the spark gap of the ignition plug. In accordance with another aspect of the present invention, means are further provided for drawing discharge current away from the ignition plug to thereby limit the magnitude of the discharge current within some time period after the transfer of energy from the primary coil to the secondary coil begins. The principles of the present invention are accordingly applicable to control the duration and/or magnitude of ignition plug discharge current to thereby minimize electrode erosion while maximizing ignitability in either a conventional ignition plug-based ignition system or an arc propelling ignition plug-based ignition system.
REFERENCES:
patent: 3368540 (1968-02-01), Ault
patent: 3718124 (1973-02-01), Burley
patent: 4077377 (1978-03-01), Jundt et al.
patent: 4117818 (1978-10-01), Bodig et al.
patent: 4303977 (1981-12-01), Kobashi et al.
patent: 4506650 (1985-03-01), Shimojo et al.
patent: 4512303 (1985-04-01), Watanabe
patent: 4639871 (1987-01-01), Sakai et al.
patent: 4862370 (1989-08-01), Arnold et al.
patent: 4886037 (1989-12-01), Schleupen
patent: 4915086 (1990-04-01), Ciliberto et al.
patent: 4969439 (1990-11-01), Scotson
patent: 4996967 (1991-03-01), Rosswurm et al.
patent: 5038744 (1991-08-01), Martin et al.
patent: 5197448 (1993-03-01), Porreca et al.
patent: 5247919 (1993-09-01), Akaki et al.
patent: 5255209 (1993-10-01), Krebs
patent: 5327320 (1994-07-01), Fischer
patent: 5404853 (1995-04-01), Ishigami et al.
patent: 5513618 (1996-05-01), Rich et al.
patent: 5555862 (1996-09-01), Tozzi
patent: 5619959 (1997-04-01), Tozzi
patent: 5623412 (1997-04-01), Masson et al.
patent: 5668311 (1997-09-01), Kiess et al.
patent: 5886476 (1999-03-01), Skinner et al.
patent: 5947093 (1999-09-01), Ward
Everett David A.
Gatewood Bryan S.
Goldschmidt Stephen
Tozzi Luigi P.
Castro Arnold
Cummins Engine Company, Inc.
Yuen Henry C.
LandOfFree
System for controlling ignition energy of an internal combustion does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with System for controlling ignition energy of an internal combustion, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for controlling ignition energy of an internal combustion will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-458953