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DBK Group | Corporate
High Voltage Coolant Heater Automotive

High Voltage Coolant Heater | Automotive

400 V Variant Flyer Technical Data Sheet

800 V Variant Flyer Technical Data Sheet

The world's smallest, lightest and most efficient Automotive High Voltage Fluid Heater for automotive thermal management, battery heating & interior heating.

• Heating power up to 6 kW respectively 7 kW

• Voltage range 195 - 450 V respectively 180 - 940 V

• Robust and field-tested wire heating technology

• Patented fluid guidance

• High energy efficiency of ~98%

DBK Automotive High voltage water heater

HIGH VOLTAGE WATER HEATERs UP TO 7kW | 450V

High Voltage Water Heaters are electric water heating systems using tubular heating technology to heat the water circuit in electric, hybrid or fuel cell vehicles. As these vehicles hardly generate any engine waste heat, electric auxiliary heaters are required to provide sufficient heating for the vehicle interior.

High Voltage Water Heaters are compact heating systems with robust stainless steel housing for easy integration into the water circuit. The fluid can enter the lower housing chamber via two pipe connections and will be heated directly by tubular heating elements.The integrated power electronics, installed in the upper housing chamber, serve to control and monitor the heating elements and can be controlled by PWM signal or standard bus systems (LIN).

The built-in tubular heating elements have been especially designed for automotive applications and offer several advantages over PTC technology, e.g. high power at high water temperatures, a wider voltage range, and low inrush currents. The tubular heater’s resistance-to-temperature dependency allows for precise temperature control - for maximum reliability and safety.

High Voltage Water Heaters are available in different versions, depending on customer requirements, featuring an power output of up to 7KW and an operating voltage of up to 450V.

 
DBK Automotive High voltage air heater

PTC High voltage air heaters up to 6kW | 430V

High Voltage Air Heaters are electrical heating systems with PTC technology for air heating in passenger compartments of electric, hybrid or fuel cell vehicles. As these vehicles hardly generate any engine waste heat, electric auxiliary heaters are required to provide sufficient heating for the vehicle interior.

High Voltage Air Heaters are compact PTC finned resistor heaters for homogeneous heating of air flows. The electric auxiliary heaters are available as step-switched and as steplessly adjustable heaters with integrated power electronics. This allows for permanent monitoring of the entire system and minimized fluctuations in the vehicle electrical system. The power electronics will be customized and can be contolled by PWM signal or via standard bus systems (LIN).

DBK Automotive PTC SCR heaters

PTC Urea heating systems up to 300W | 12/24V

Flyer EN Flyer FR

Urea Heating Systems are electrical PTC heaters for heating of all components within a SCR system, such as filters, metering systems, pumps, tanks, pipes, and connectors.

SCR Heating Systems (Selective Catalytic Reduction) are used for exhaust gas aftertreatment in diesel engines in order to comply with standardized, country-specific exhaust gas values (such as Euro 6). In this process, an urea solution (AdBlue) is injected into the exhaust gas stream, which reduces the nitrogen oxides by means of released ammonia. As urea freezes at low temperatures starting at -11°C, all urea-carrying components must be heated.

PTC Urea Heating Systems are available in various designs, depending on customer requirements, with a power output of up to 300W and a maximum temperature of 60°C, specially adapted to the properties of urea.

 
 
DBK Automotive PTC diesel heaters

PTC Diesel heaters up to 700W

Flyer EN

Diesel Heaters are electric PTC heaters for preheating of diesel fuel in winter. At temperatures below 0°C, paraffin precipitation occurs in diesel fuel, affecting the flow behaviour in the fuel circuit. This causes the diesel filter to clog, the engine receives no fuel and the vehicle stops.

PTC Diesel Heaters are universally applicable systems which can be positioned before the fuel supply line (suction side) or after the fuel feed pump (pressure side). The heating power is determined by the fuel temperature and the flow rate, varying between 150W and 700W, depending on customer requirements. Diesel preheating systems are designed for fit custom requirements and installation spaces, and can be equipped with thermostats, NTC sensors, water level sensors or pressure sensors.

PTC Diesel Heaters are available in various designs, e.g. as sandwich heater, stick heater, lid heater, ring heater or bowl heater.

DBK Blowby Heater Automotive

PTC Blow-by heaters up to 50w

Flyer EN Flyer FR

Blow-by Heaters are custom PTC heaters for heating of blow-by gas in combustion engines. Blow-by gas, also known as crankcase gas, originates from leakages that occur between pistons, piston rings and the engine cylinder walls. The gas which is contaminated with aggressive pollutants leaks down into the crankcase from where it is discharged, de-oiled and returned to the intake tract. During this process, icing can occur due to temperature differences between the warm blow-by gas and the cold intake air. The water contained in the warm blow-by gas condenses and freezes at the transition point to the cold intake air. In order to prevent damage to the turbo (compressor) and to the engine, blow-by heaters are used at these transition points.

Electric Blow-by Heaters are equipped with PTC heating elements, which cannot overheat due to the PTC effect. The heater’s patented pocket solution reliably separates heating element and electronics from the aggressive blow-by gas, thus preventing heater failure and short circuits. This allows the heater to be permanently supplied with current and to operate with an output between 10W and 50W.

PTC Blow-by Heaters may also serve to detect leakage points (OBD requirement) or can be equipped with an electrical contact cable, depending on customer requirements. Blow-by Heaters are typically installed at the inlet of the intake system, pressure and flow control valves, throttle valves, oil separators or blow-by gas tubes.

 
DBK Automotive PTC interior heaters

PTC interior heaters up to 2kw

Flyer EN

PTC Interior Heaters are electric air heaters with PTC technology for vehicle passenger compartments. Increasingly efficient, direct-injection gasoline and diesel engines hardly generate any engine waste heat, which is why electric auxiliary heaters are required to provide sufficient heating for the vehicle interior.

PTC Interior Heaters are compact air heaters with low pressure drop and a heating capacity between 400W to 2kW. The electric auxiliary heaters are available as step-switched and as steplessly adjustable heaters with integrated power electronics. This allows for permanent monitoring of the entire system and minimized fluctuations in the vehicle electrical system. The power electronics will be customized and can be contolled by PWM signal or via standard bus systems (CAN, LIN).

PTC Interior Heaters are available in different versions, e.g. as step-switched compact heater, step-switched heater with integrated electronic relay, continuously adjustable heater with integrated power electronics, decentralized PTC heating element (e.g. in the rear area) or as heating elements for seat climate control (e.g. for convertibles)

 
DBK Automotive Intake air preheater trucks

Intake air preheaters up to 7kw | 12/24V

Flyer EN

Flange Heaters are electric heating elements for preheating intake air in diesel engines. They allow for a fast and safe cold start at arctic temperatures, or in high altitudes without withdrawing oxygen from the intake air. During this process, the electric heat is transferred to the ambient or passing air via heating coils. These consist of flat wires which are highly resistant to corrosive atmospheres. Their special shape strengthens their resistance to vibrations and allows for play-free expansion at high temperatures.

Flange Heaters are very versatile in their application. Next to optimizing cold-start procedures, they can be used to reduce exhaust gas and noise emissions during starting and warm-up, to reduce exhaust gas values for running engines, or to replace glow plugs in cases of limited installation space. In addition, Flange Heaters can be equipped with custom electronics, featuring adaptation of control signals via infinitely variable output regulation, and integrated temperature monitoring.

In contrast to traditional flame start systems, Flange Heaters consist of one component only and therefore do not require any connection to the fuel supply, which significantly reduces the cost of the overall system.