F - Mech Eng,Light,Heat,Weapons – 23 – Q
Patent
F - Mech Eng,Light,Heat,Weapons
23
Q
341/25
F23Q 9/14 (2006.01) F23N 5/20 (2006.01)
Patent
CA 1105589
FUEL IGNITION CONTROL SYSTEM Abstract of the Disclosure: A fuel ignition control system including a control arrangement for operating pilot and main valves of the system the pilot valve being operated to permit a pilot flame to be established, and the main valve being operated by a pilot flame sensing circuit which includes a controlled switching device enabled in response to the charging of a capacitor to a given value to effect the operation of the main valve, the charging of the capacitor being controlled by a further controlled switching device which supplies AC current to the capacitor in the absence of a pilot flame, preventing the capacitor from charging to the given value, and which supplies DC current to the capacitor when a pilot flame is established, permitting the capacitor to charge to the given value. In an embodiment wherein the main valve is energized by a relay controlled by the flame sensing circuit, the control arrangement includes an interlock arrangement which prevents start up of the system under certain failure conditions, such as welded relay contacts. In another embodiment, the system includes an igniter circuit which has a flame responsive enabling circuit which permits the igniter circuit to be enabled and disabled independently of the flame sensing circuit.
294009
Johnson Controls Inc.
Osler Hoskin & Harcourt Llp
LandOfFree
Fuel ignition control system 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 control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fuel ignition control system will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-509500