F - Mech Eng,Light,Heat,Weapons – 23 – Q
Patent
F - Mech Eng,Light,Heat,Weapons
23
Q
341/20
F23Q 9/08 (2006.01) F23N 5/00 (2006.01) F23N 5/20 (2006.01) F23N 5/24 (2006.01) F23Q 23/00 (2006.01)
Patent
CA 1084610
FUEL IGNITION SYSTEM CONTROL ARRANGEMENT PROVIDING TOTAL FUEL SHUTOFF AND CONTACT PROTECTION Abstract of the Disclosure: A control arrangement for a fuel ignition system to provide an interlock on start-up to prevent energization of fuel valves under certain failure conditions includes a pulse gen- erating circuit operable when enabled to provide pulses for enabling a first switching device which energizes a pilot valve to supply fuel to a fuel outlet and prepares an energizing path for a main valve, and a second switching device enabled by a flame sensing circuit when a flame is established at the outlet to close associated contacts to complete the energizing path for the main valve and to cause the pulse generating circuit to con- tinue to generate pulses for maintaining the first switching device enabled, the pulse generating circuit being inhibited whenever the contacts are closed at start-up, or close after the system is in a lock out state, preventing the enabling of the first switching device to maintain the pilot valve and the main valve deenergized.
274629
Johnson Controls Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
Fuel ignition system control arrangement providing total... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Fuel ignition system control arrangement providing total..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel ignition system control arrangement providing total... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-777119