Invention Grant
- Patent Title: Micro-pilot for gas appliance
- Patent Title (中): 燃气用具微型飞行员
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Application No.: US12175504Application Date: 2008-07-18
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Publication No.: US08454352B2Publication Date: 2013-06-04
- Inventor: Geoffrey Mervyn Whitford , Brendon John Ruwoldt
- Applicant: Geoffrey Mervyn Whitford , Brendon John Ruwoldt
- Applicant Address: AU Pendle Hill
- Assignee: Invensys Controls Australia Pty Ltd.
- Current Assignee: Invensys Controls Australia Pty Ltd.
- Current Assignee Address: AU Pendle Hill
- Agency: Reinhart Boerner Van Deuren, P.C.
- Main IPC: F23Q9/08
- IPC: F23Q9/08

Abstract:
A micro pilot for a gas hot water heater is provided. The micro pilot provides a flame that is substantially smaller than a typical pilot in a hot water heater during standby operation of the burner. Just prior to allowing gas to flow to the burner upon a call for heat, a pilot flame of sufficient size to ensure ignition of the burner is provided. In one embodiment this larger pilot flame is produced by providing an additional amount of bleed gas to the pilot to increase flame size. In another embodiment, bleed gas is provided to a separate booster pilot, which is ignited by the micro pilot. The flame from the booster pilot is then used to ignite the main burner. This design allows for the micro pilot to be positioned closer to the flame trap of a flammable vapor resistant hot water heater to ensure smooth ignition of any such vapor.
Public/Granted literature
- US20100015559A1 Micro-Pilot For Gas Appliance Public/Granted day:2010-01-21
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