The furnace has a normally-open heating thermostat 27 which when closed initiates supply of fuel by valve 37 and operation of induced draft blower 21. Heated air is then circulated by a comfort fan 13 running at low speed following closure of switch 11. A normally-open cooling thermostat 43...
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The tube furnace consumes a considerable space, burns through a great measure of energy while raising the ecological temperature around the source material, and requires a ton of time to accomplish warm steadiness. Additionally, a commonplace tube furnace needs power utilization (a few kilowatts) ...
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In the event of faulty operation a normally-closed over-temperature thermostat 25 opens and sets the comfort fan 13 operating at high speed to dissipate the excess heat while maintaining the induced draft blower 21 in operation.doi:EP0389715 A2Roger W. WilliamsEP...
The electronic automatic air heating furnace comprises a furnace body, a grate, a hearth, a smoke pipe and an ash hopper. A feeding mechanism is arranged at the upper portion of the left side of the furnace body, a hot air chamber is arranged at the upper portion of the right side of...
REFLOW FURNACE FOR SOLDERING BOARD MOUNTING ELECTRONIC COMPONENT BY HEATING BOARD IN HOT-AIR, HOT-AIR CIRCULATION UNIT AND ATTACHMENT THEREOF AND BOARD HEATING METHODPROBLEM TO BE SOLVED: To improve variation of soldering of a printed circuit board mounting electronic components having a significant ...
Electronic control system for a gas-fired/hot air furnace includes a primary control unit which controls the flow of fuel to the furnace. The furnace has heating and cooling space thermostats and a comfort fan to supply heated or cooled air to the space being monitored by the thermostats and...
ways to prevent entry of air into a furnace intended for soldering of electronic components and a furnace thereforeSoldering electronic components onto circuit boards by passing the boards through several heating zones in an oven containing eg. IR or convection heaters, whilst supplying inert gas (...