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US 5,510,952 AGranted
Ignition system using multiple gated switches with variable discharge energy levels and rates
AssigneeSimmonds Precision Engine Systems, Inc.
InventorsHoward V. Bonavia, John E. Killean
Life of this patent
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Abstract
An ignition system for a gas turbine engine includes a plurality of igniters, an energy storage capacitance, a charging circuit for charging the capacitance, a plurality of gated switches, with at least one switch connected between each igniter and the capacitance, and control means for discharging respective amounts of energy from the capacitance to each respective igniter at respective spark rates.
Claims16
An ignition system for a gas turbine engine comprising:
- a plurality of igniters, an energy storage capacitance, a charging circuit for charging the capacitance, a plurality of gated switches, with at least one switch connected between each igniter and the capacitance for controlling the igniter spark rate, and control means for discharging energy from the capacitance to each respective igniter at an individually selectable spark rates for each igniter.
A spark discharge system for a gas turbine engine comprising:
- a plurality of igniters, an energy storage capacitance, a charging circuit for charging the capacitance, a plurality of gated switches, with at least one switch connected between each igniter and the capacitance for controlling discharge of energy from the capacitance to the igniter, and control means for controlling individually selectable amounts of energy to be discharged from the capacitance to each respective igniter by said switches.
An exciter circuit for an ignition system comprising:
- an energy storage capacitance;
- a plurality of igniters that discharge energy from the capacitance in sequence;
- a plurality of switch means, each respectively connected between said capacitance and a respective igniter;
- and means for charging said capacitance to an individually selectable level dependent on which igniter is next to discharge in the sequence and triggering said switch means according to the sequence.
1 more element
Dependencies are inferred from the claim text.