Patent ID: 6162048
Filing Date: 2000-12-19
Classification: F23D

Abstract:
A pilot assembly for producing a pilot flame in a gas combustion device, comprising:a mount adapted to fix the assembly to a gas combustion device;a first housing fixed to said mount and including a first through passage which is adapted to receive gas from a gas source, said first housing also including a first recess in said first passage;a first seat member received in said first recess;a second housing movably secured to said first housing and including a second through passage which receives gas from said first passage and supplies the gas to a pilot flame, said second housing also including a second recess in said second passage;a second seat member received in said second recess;an orifice member mounted between said first and second seat members to meter gas flow into said second passage to create a pilot flame, said orifice member including at least two different orifices, said orifices being respectively sized to meter gas flow of different types of gas;said second housing having a first location relative to said first housing which fixes said orifice member with one said orifice communicating said first and second passages to meter gas flow therebetween, said second housing having a second location relative to said first housing which releases said orifice member to allow movement of said orifice member to communicate a second said orifice between said first and second passages and thus to meter gas flow for a different gas supplied to said first passage.