Liquid fuel burner for domestic heating system - has fuel delivery regulated by motorised spindle valve, with take-off drive to Bowden cables for air flaps

摘要

The liquid fuel burner for the low load regime of a heating plant has a regulator driven by an electric motor (3) for the fuel delivery and for the admitted air. The fuel delivery is regulated by the movement of a spindle (1) under oil pressure within the fuel tank, this movement also regulating the throughput of combustion air using an air flap (for air quantity) and a baffle plate (for air velocity). The motor has a gearbox where rotary movement is converted to linear movement. It comprises a worm gear driving a pinion attached to one crank and subsidiary pinions driving another. The crank pins connect to Bowden cables with return springs. ADVANTAGE - Reduced number of starting operations of burner.