![]() ![]() This management system is connected to the transmission allowing the engine and transmission to respond simultaneously.Ĭold-weather and high-altitude compensation are also precisely controlled for quality starts regardless of weather and proper power levels at high elevations.Ĭustom mode allows the operator to customize the DirectDrive settings where full auto mode is not desirable. With each injection cycle, the ECU can make the following adjustments on the go: Load and speed sensing allows each cylinder’s fuel delivery rate to be adjusted independently at the individual injector. The ECU can sense engine speed and load changes at a rate of 100 times per second and respond instantly to them. The ECU turns the injector on and off during each firing cycle to control the fuel delivery into each cylinder. A host of other control parameters to deliver peak fuel economy and engine performanceĮach injector is controlled individually by the ECU.Amount of cooled exhaust gas recirculation (EGR).The ECU uses signal inputs from sensors and pre-programmed performance modeling to control critical engine functions such as: Performance-matched fuel consumption delivering reduced fuel costs per acre.High responsiveness under all load and speed conditions, which extends the engine working range to lower speeds, delivering more power and productivity in the field at outstanding fuel saving engine speeds.High-pressure common rail delivering exactly the same fuel pressure level at all of the injectors.This electronically controlled and high-pressure pump delivers pressure on demand according to the application requirements. The pressure is generated by the gear-driven piston pump. The high-pressure fuel pump instantly responds to requirements for more or less fuel flow or pressure. The engine width is not changed greatly, allowing for a narrow tractor hood and excellent row-crop visibility.Įvery PowerTech PVX/PSX engine utilizes the high-pressure common rail (HPCR) fuel system to supply fuel to injectors. Location allows intake air to go directly down through the head with minimal turning to aid in engine breathing characteristics. ![]() The intake manifold is located above the exhaust manifold. There is improved lugging ability throughout the entire working range with significant productivity improvements at low engine rpm. Offers excellent pull-through characteristics delivered by constant high torque.Valves and replaceable valve seat inserts designed to minimize flow restriction (engine uses special powdered metal valve guide inserts with impregnated lubricant for proper seating and to prolong wear).Raises the air-fuel ratio while reducing internal operating temperatures for improved reliability and fuel efficiency.Maintains cooler head temperatures through a high rate of airflow.Positions the injector in the center of the piston and combustion chamber for even piston loads and mixing of fuel.Additional four-valve cylinder head benefits are as follows: ![]()
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