MOTOR OIL ELECTRIC HEATER USED TO FACILITATE STARTING OF INTERNAL COMBUSTION ENGINE Russian patent published in 2003 - IPC

FIELD: mechanical engineering. SUBSTANCE: device is designed for pre-starting heating of oil in engine crankcase at below zero ambient temperatures. Proposed flexible heating element in form of wire is coupled through insulated connecting with means of connection to vehicle circuit and is additionally provided with elastoplastic steel bare wire one end of which is connected to means of connection to circuit and other end is connected with vacant end of flexible heating wire made in form of bundle of carbon threads in fluorine polymer braiding. Carbon threads bundle and connecting wire are arranged lengthwise elastoplastic wire, ends of carbon threads of bundle are tinned, and electric connections with ends of bundle are made by winding of steel or tinned wire and upsetting by steel fastener, flexible heating and connecting wires being fastened to elastoplastic wire. invention makes it possible to create highly reliable electric heater-probe for pre-starting heating of oil which can take required form when being lowered into engine crankcase. EFFECT: improved operation reliability and manufacturability. 3 cl, 1 dwg