The Tigerloop® Auto 2 and Tigerloop® Auto Plus 2 are designed to meet the requirements of the Automotive Industry. The Tigerloop® Auto 2 models are suitable for auxiliary heaters and small diesel motors. The Tigerloop® Auto 2 models are compatible for use with diesel (EN590), biodiesel (EN14214) and HVO diesel (EN15940).

Tigerloop^® makes a one-pipe system possible for almost all types of oil heating installations helping to ensure environmental safety, cost effectiveness and reliability.

In an oil heating system using a Tigerloop, all oil passes through the automatic oil deaerator, which effectively removes all gas/air bubbles from the system. This eliminates oil pump and nozzle problems associated with gas/air in the oil.

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FEATURES

Tigerloop® Auto 2 models combine the advantages for the fuel pump of a two-pipe system with advantages for the fuel tank of a one-pipe system. When using a one-pipe system and a Tigerloop® Auto 2, only the amount of fuel used by the burner is drawn from the tank. As flow of fuel decreases, so does the amount of dirt particles transported from the tank. This results in cleaner combustion.

The Tigerloop® Auto 2 models also have other advantages.The pressurized return line to the tank is removed, thus eliminating the risk for leakage. A large amount of air bubbles are released when fuel is drawn from the fuel tank to the heater or motor. When using Biodiesel, the viscosity will change dramatically, especially in cold weather. The flow of Biodiesel is restricted causing a higher resistance, which leads to the release of even more air bubbles in the fuel. These air bubbles causes disruptions, soot build-up and wear and tear on the pump / motor. By functioning as a self-de-aerating day tank, the Tigerloop® Auto 2 models will eliminate such problems. The Tigerloop® Auto 2 models even act as a fuel heater by using the friction of the pump to heat the fuel circulating between the Tigerloop and the fuel pump.

Theory of Operation

Applications

The Tigerloop Auto 2 should be installed close to the heater and secured properly to a solid surface by the bracket and locking shackle included in the box. The connection from the fuel tank shown in the picture here is at the bottom of the Tigerloop Auto 2. It is important that a separate filter is installed just before the Tigerloop Auto 2 to avoid problems of dirty fuel. Arrows under the pump connection points on the Tigerloop Auto 2 show the flow of fuel to represent “to pump” and “from pump” connections.

Maintain fuel quality
Systems using heaters without the Tigerloop Auto 2 will draw a large amount of fuel to the heater (pump capacity). Only a small amount of that fuel is actually used by the heater (nozzle capacity). The fuel not burned will then be re-transported to fuel tank. Transporting fuel back and forth between the fuel tank and the heater releases more dirt and sludge in the system and lessens the quality of the fuel.

Using the Tigerloop Auto 2 eliminates the need for a return line from the pump to the fuel tank. Only the amount of fuel used by the heater is actually drawn from the fuel tank. This preserves the quality of fuel. By eliminating the return line, fuel quality is maintained at the optimum level.

Product Specifications

Specifications

Automotive - Automatic fuel de-aerator for diesel and biodiesel

The same way the Tigerloop has helped in over 4 million oil heating installations world-wide, the Tigerloop Auto is helping buses and other automotive transport systems to run more reliably, run more efficiently, reduce pollution and save on engine wear and tear.

Reliability
The Tigerloop Auto 2 is a perfect solution for auxiliary heaters (preheaters) used on buses or other forms of transport as fuel is taken from the fuel tank to feed an auxiliary heater. The Tigerloop Auto 2 allows this system to use only a suction line between the fuel tank and the Tigerloop, eliminating the need for a return line to the fuel tank. The Tigerloop automatically and continually de-aerates the fuel before it enters the auxiliary heater for improved reliability and function, especially in cold weather.

Reducing fuel consumption
Using the Tigerloop Auto 2 together with an auxiliary heater allows the bus or other transport system to heat an area inside the vehicle without the use of the motor. This is a great benefit in saving fuel.

Reducing pollution
Idling buses and other automotive transports can pollute the air in and around the bus. Exhaust from the bus can also enter buildings through air intakes, doors and open windows. The exhaust from idling buses and other automotive transports can be a real health concern. The Tigerloop Auto 2 helps auxiliary heaters to run reliably in all weather conditions by providing the heater with pre-heated and de-aerated fuel automatically and continually.

Saving on engine wear and tear
Today’s engines require very short idling times to warm up. Extended idling times will actually lead to engine damage. Engine manufacturers generally recommend between no more than 3 to 5 minutes of idling. Some engine manufactures have written instructions to avoid excess idling, which causes carbon build up leading to engine damage.

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