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HOSE, HP WASTEGATE ACTUATOR 7097612C1 - Caterpillar

7097612C1 HOSE, HP WASTEGATE ACTUATOR Caterpillar parts HOSE
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Number on catalog scheme: 2
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Illustration 1 g01140052
Air inlet and exhaust system
(1) Exhaust manifold
(2) Aftercooler
(3) Exhaust valve
(4) Inlet valve
(5) Air inlet
(6) Exhaust outlet
(7) Compressor side of turbocharger
(8) Turbine side of turbocharger The components of the air inlet and exhaust system control the quality of air and the amount of air that is available for combustion.Air is drawn in through the air cleaner into air inlet (5) by the turbocharger compressor wheel. The air is compressed and heated to about 150 °C (300 °F) before the air is forced to aftercooler (2). As the air flows through the aftercooler, the temperature of the compressed air decreases to about 50 °C (120 °F). Cooling of the inlet air increases combustion efficiency. Increased combustion efficiency helps achieve lower fuel consumption, increased horsepower output, and reduced particulate emission.From the aftercooler, air is forced into the inlet manifold. Air flow from the inlet chambers into the cylinders is controlled by inlet valve (4). There is one inlet valve and one exhaust valve for each cylinder. When the inlet valves open, cooled compressed air from the inlet port is pulled into the cylinder.Each piston makes four strokes for one complete cycle in two revolutions of the crankshaft.
Intake During the intake stroke, the piston moves down and air is drawn into the cylinder through the open inlet valve.
Compression During the compression stroke, the valves are closed and the piston moves up in the cylinder in order to compress the air. As the air is compressed, the temperature increases. As the piston nears the top of the stroke, fuel is injected into the combustion chamber on top of the piston. The fuel mixes with the hot compressed air in order to cause combustion.
Power During the power stroke, the valves are closed as the forces from combustion push the piston and connecting rod down turning the crankshaft.
Exhaust During the exhaust stroke, the inertial force of the turning flywheel helps continue the rotation of the crankshaft in order to push up the piston in the cylinder. This action forces the burned gases out of the exhaust valve. This completes the four strokes of the piston.Exhaust gases from exhaust manifold (1) enter the turbine side of the turbocharger in order to turn turbocharger turbine wheel. The turbine wheel is connected to the same shaft that drives the compressor wheel. Exhaust gases from the turbocharger pass through exhaust outlet (6), a muffler and an exhaust stack.Turbocharger
Illustration 2 g01140121
(1) Compressor housing
(2) Oil inlet port
(3) Bearing
(4) Turbine housing
(5) Turbine wheel
(6) Air inlet
(7) Exhaust outlet
(8) Compressor wheel
(9) Bearing
(10) Oil outlet port
(11) Exhaust inlet The turbocharger can be mounted in two different positions on the engine. All the exhaust gases from the engine go through the turbocharger. The exhaust gases enter turbine housing (4) through exhaust inlet (11). The exhaust gases then push the blades of turbine wheel (5). The turbine wheel is connected by a shaft to compressor wheel (8).When the load on the engine increases, more fuel is injected into the cylinders. The combustion of this additional fuel produces

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