Abstract: A heater in which, during the glow plug ramp time interval, the amount of energy supplied per unit of time to the glow plug/flame monitor can be successively changed, and a control unit which is operationally coupled to the glow plug/flame monitor. To enable continuous flame monitoring during the starting phase of the heater with the control unit, the resistance value of the glow plug/flame monitor is determined during the glow plug ramp time interval and compared to a threshold value RGS, and when the threshold value RGS is not reached, a flame-out signal is generated.

Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.

Abstract: A heating apparatus for a motor vehicle including a heat exchanger having a wall for separating a heated exhaust gas from a heat exchange medium, a conveyor mechanism for conveying the heat exchange medium along the wall, and a protective mechanism for protecting the heater against overheating. The protective mechanism determines the mass flow of the heat exchange medium delivered by the conveyor mechanism when the heater is actuated so that the danger of overheating the heater is reliably detected when the delivery of the heat exchange medium is dammed.

Abstract: A cold and/or heat accumulator with a plurality of carrier elements (10) which are charged with a cold or heat storage medium, and with a heat exchanger (12) which is designed to have a heat transfer medium flow through it in order to cause heat exchange between the cold or heat storage medium and the heat transfer medium. The heat exchanger (12) has at least one serpentine hollow section (14), and at least at least one carrier element (10) is provided between the legs of at least some of the loops of the serpentine hollow section. In a process for producing the cold and/or heat accumulator, the height of the carrier elements is coordinated to a distance between the legs of the at least one loop such that, after a force-fit connection is formed between the serpentine hollow section and the carrier elements.

Abstract: A system with an internal combustion engine which has a heat transfer circuit, a fuel cell and a climate control unit which is accommodated in the heat transfer circuit of the internal combustion engine. The system has a heat transfer arrangement for transferring the exhaust heat of the fuel cell to the heat transfer circuit and a bypass for bridging a segment of the heat transfer circuit which runs through the internal combustion engine so that, in the bypassed operating state, an isolated circuit is formed. In stationary operation, this enables an optimized operating mode since the internal combustion engine is no longer heated and the exhaust heat of the fuel cell is fully available for heating purposes.

Abstract: A process for delivering a cold or heat storage medium into a carrier material, in which the carrier material is located in a container which can be at least partially evacuated.

Abstract: An auxiliary heater for a motor vehicle equipped with a control device for controlling the operation of the auxiliary heater. In order to increase passenger protection in the motor vehicle, the control device is set up to detect a signal from at least one vehicle safety sensor, using the signal to detect the safety-critical state of the vehicle, and depending upon this detected status, ceases operation of the auxiliary heater.

Abstract: The invention relates to an atomizer burner for a motor vehicle heater, with a cobustion chamber which contains a baffle barrier and with an atomizer means (2) which atomizes the fuel into the combustion chamber, characterized in that within the combustion chamber in the atomization direction of the fuel at a distance from the atomization point of the atomizer means (2) which is smaller than the diameter of the combustion chamber or the diameter of a cylindrical heat shield (8) which extends in the combustion chamber there is a baffle plate (18) which acts as a baffle barrier.

Abstract: A system for heating and cooling the interior of a motor vehicle is provided which includes a first climate control device designed to heat or cool a front area of the interior, a second climate control device designed to heat or cool a rear area of the interior, a first evaporator connectable to a first cooling agent circuit assigned to the first climate control device and a second evaporator connectable to a second cooling agent circuit assigned to the second climate control device. The second evaporator is located in a latent storage in order to charge the latent storage with cold and the second climate control device contains a first heat exchanger designed to transfer the cold removed via a heat transfer medium circuit or the second cooling agent circuit from the latent storage for cooling the rear area of the interior by an air flow.

Abstract: The vehicle heating appliance comprises a fuel supply (12) for supplying a liquid fuel to a combustion device (24) and a remotely controllable valve (46) disposed in the fuel supply (12). In order to provide a vehicle with a heating appliance, with which safety-critical situations are substantially avoided, an overpressure safety device (50) is provided in the fuel supply (12).

Abstract: A heating system for heating the interior of a motor vehicle including a liquid circuit for dissipating engine heat and delivering heat to the vehicle interior, a valve block for controlling the liquid flow in the liquid circuit, and an electric heating device integrated into the valve block to heat the liquid flowing through the valve block.

Abstract: An arrangement having an auxiliary heater, a catalytic converter (12) for catalytic post-combustion of exhaust gas from the heater, a muffler (14) for damping of the noise caused by the exhaust gas, and an exhaust line for removing exhaust gas from the auxiliary heater. In order especially to devise an auxiliary heater in which the muffler and the catalytic converter can be installed relatively easily, the muffler (14) and the catalytic converter (12) are combined in sing module (10) that can be located on the exhaust line.

Abstract: An auxiliary heater suitable for mobile applications and provided with a burner and a cup-shaped heat exchanger (10) which has a hollow cylindrical wall section (26, 48) with a first end area (16) facing the burner, a bottom section (24, 46) facing away from the burner, a heat transfer medium inlet (18), and a heat transfer medium outlet (20), by which, in operation of the auxiliary heater, a fluid heat transfer medium flows through the bottom section (24, 46) and the hollow cylindrical wall section (26, 48). In order to devise an auxiliary heater with has higher efficiency than known auxiliary heaters of the same size, both the heat transfer medium inlet (18) and heat transfer medium outlet (20) located on the first end area (16) of the heat exchanger (10).

Abstract: A heating system for heating the interior of a motor vehicle including a combustion heater for burning fuel in order to heat air supplied to the vehicle interior and/or liquid in the vehicle in the cooling circuit of the engine. An electrical heating device is integrated into the combustion heater in order to supply heat to the air or liquid to be heated.

Abstract: A heating system for heating air, especially for heating the interior of a motor vehicle, with a first heater (10), a second heater (12), and a flow path between the first heater (10) and the second heater (12), there being at least one auxiliary fan (50) with which a flow in the direction from the second heater (12) to the first heater (10) can be produced and a process for influencing the air flows in the heating system are designed to counteract overpressurization. Furthermore, an air heater and a process for detecting backflowing hot air through an air heater use a temperature sensor in an inlet area of the heater for that purpose.

Abstract: An auxiliary heater for a motor vehicle equipped with a control device for controlling the operation of the auxiliary heater. In order to increase passenger protection in the motor vehicle, the control device is set up to detect a signal from at least one vehicle safety sensor, using the signal to detect the safety-critical state of the vehicle, and depending upon this detected status, ceases operation of the auxiliary heater.

Abstract: An arrangement for heating a motor vehicle interior, especially a truck driver's compartment, a bus interior or the passenger compartment of a passenger car, with a ventilation device (10) for taking in fresh air via a fresh air intake area and for discharging air into the motor vehicle interior, with a heating device (11) for heating of air, and with a warm air line (25) for routing the air which has been heated by the heating device (11) into the ventilation device (10). The warm air line (25) is routed into the fresh air intake area such that the heated air emerging from the warm air line (25) is taken in jointly with the fresh air into the ventilation device (10).

Abstract: A heating apparatus for a motor vehicle including a heat exchanger having a wall for separating a heated exhaust gas from a heat exchange medium, a conveyor mechanism for conveying the heat exchange medium along the wall, and a protective mechanism for protecting the heater against overheating. The protective mechanism determines the mass flow of the heat exchange medium delivered by the conveyor mechanism when the heater is actuated so that the danger of overheating the heater is reliably detected when the delivery of the heat exchange medium is dammed.

Abstract: A circuit for evaluation of a measurement signal of a thermocouple (S1), especially a thermocouple which is used as a flame detector (F) of a motor vehicle heater, with an amplifier (U1) for amplifying the measurement signal and with a microcontroller (&mgr;C) which is supplied with the amplified measurement signal as the input signal. A switch (T2) is provided for short circuiting the input (15) of the amplifier (U1) during a pause in the measurement cycle, and the microcontroller (&mgr;C) has a memory in which the input signal is deposited during the measurement cycle pause, and the microcontroller (&mgr;C) has a correction algorithm to correct the measurement signal using the signal deposited in the memory before evaluation. This measure enables an economical operational amplifier to be used as the amplifier (U1) while still attaining reliable information about the temperature prevailing at the measurement site.