Abstract

Electrical heating device for heating a liquid in a vehicle, consisting of a container (15) and a heating plate (24), where the container (15) is produced from a thermoplastic material such as PA66 and where the heating plate (24) contains a number of PTC elements which are connected to an electrical energy source. The container (15) is connected to the system for the liquid with connection nipples (16, 17) arranged on the intermediate sides (37, 40) of the container (15).

IPC Classes  ?

• F02N 19/10 - Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
• F01M 5/02 - Conditioning lubricant for aiding engine starting, e.g. heating
• H05B 3/40 - Heating elements having the shape of rods or tubes

Abstract

A device intended for heating the coolant of a motor driven vehicle in order to heat the engine of the vehicle. The device includes a connection arrangement arranged to allow electrical connection of the device to a current source and a heat-generating element including an electrical conductor designed to generate heat when a current flows through the conductor, which heat-generating element is designed to be in contact with and transfer the generated thermal energy to the coolant water, wherein the electrical conductor is designed in such a way that the conductor is destroyed if the heat transfer from the heat-generating element substantially decreases during a time period, wherein the current through the conductor is interrupted.

IPC Classes  ?

• F02N 17/02 -
• B60L 1/02 - Supplying electric power to auxiliary equipment of electrically-propelled vehicles to electric heating circuits

Abstract

A device (1) intended for heating the coolant of a motor driven vehicle in order to heat the engine of the vehicle, which device comprises a connection arrangement (3) arranged to allow electrical connection of the device to a current source and a heat--generating element (5) comprising an electrical conductor (7) designed to generate heat when a current flows through the con-ductor, which heat-generating element (5) is designed to be in contact with and transfer the generated thermal energy to the coolant water, wherein the electrical conductor (7) is designed in such a way that the conductor is destroyed if the heat transfer from the heat-generating element substantially decreases during a time period, wherein the current through the conductor is inter-rupted.

IPC Classes  ?

• F02N 19/10 - Aiding engine start by thermal means, e.g. using lighted wicks by heating of fluids used in engines by heating of engine coolants
• H05B 3/78 - Heating arrangements specially adapted for immersion heating