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On the oil output side of the wastegate actuator sits the density controller, an air-controlled oil valve which senses upper deck pressure and controls how fast oil can bleed from the wastegate actuator back to the engine. As the aircraft climbs and the air density drops, the density controller slowly closes the valve and traps more oil in the ...
If it is, then the control unit activates a solenoid valve that directs boost pressure to the turbocharger's pneumatically controlled wastegate, that opens to bypass exhaust gases from the turbocharger directly to the exhaust pipe, lowering turbo boost pressure until the knock subsides. Knock events that are managed by the APC can be discerned ...
Regardless of the effectiveness of the boost controller, wastegate actuator springs that are too soft can cause the wastegate to open before desired. This due to the exhaust gas backpressure pushing against the wastegate valve itself, causing the valve to open of the actuator at all. Therefore, there is an upper limit to the effectiveness of a ...
Automatic lubrication system installed on computer numerical control machine. Automatic lubrication systems (ALS), also known as centralized lubrication systems (CLS), are mechanical devices used in industrial machines and engines to apply specified quantities of a lubricant to distribution points while the machine is operating.
The main differences between the naturally aspirated and the turbocharged versions are the cylinder head, injection pump, valves, camshafts, rods, intake and exhaust manifolds and some minor differences like oil feed and return holes for the turbo and different crankcase ventilation system, valve cover and plastic engine cover.
Using a turbocharger spool valve to increase exhaust gas flow speed to the (twin-scroll) turbine; Using a butterfly valve to force exhaust gas through a smaller passage in the turbo inlet; Electric turbochargers [51] and hybrid turbochargers. A similar phenomenon that is often mistaken for turbo lag is the boost threshold. This is where the ...
High Pressure Oil System – With the use of split-shot HEUI fuel injectors, high-pressure oil is required to pressurize the fuel injectors. The main high-pressure oil (HPO) system components are the high-pressure oil pump (HPOP), HPO manifolds, stand pipes, and branch tube. The HPOP is located in the engine valley at the rear of the engine block.
The valve cover is different as for the first time in the 3S-GTE series as the oil filler hole is on top of the exhaust camshaft instead of the intake. Other differences include the first time that there is no oil cooler in this generation as well as OBD2 diagnostics.
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