Patent ID: 6215310
Filing Date: 2001-04-10
Classification: F02P

Abstract:
In an arrangement including a source of electrical power, glow plugs and a control circuit operably connected between the glow plugs and the source of electrical power, wherein the control circuit governs cycles of electrical power to the plugs, a testing mechanism exterior to an engine to determine whether the plugs receive power during the cycles, the mechanism comprising:a hollow jacket;receptacles in the jacket, the receptacles defining passageways through the jacket;walls of the receptacles conductive of heat and electricity;the glow plugs being inserted in the receptacles in thermal and electrical contact with the walls;tips of the glow plugs extending beyond the jacket out of the receptacles, the tips being in plain view;means to circulate the coolant through the jacket past the receptacles; andmeans for grounding the receptacles.