Fuel injection device for internal combustion engine, has fuel temperature sensor integrated into pressure sensor or fuel metering device

摘要

The device has a high pressure pump delivering fuel to a tank connected to injectors, a pressure sensor and a fuel temperature sensor electrically connected to a controller. A fuel metering device before the pump is controlled so the flow of fuel to the pump is adjusted to deliver a quantity of fuel necessary to maintain a certain pressure in the tank. The fuel temperature sensor is integrated into the pressure sensor or fuel metering device. The device has a high pressure pump (14) delivering fuel to a tank (16) connected to injectors (18) on the engine cylinders, a pressure sensor (24) on the tank electrically connected to an electronic controller (22) and a fuel temperature sensor (40) electrically connected to the controller. A fuel metering device (28) before the pump is connected to the controller and is controlled by it so that the flow of fuel to the pump is adjusted to deliver a quantity of fuel via the pump to the tank that is necessary to maintain a certain pressure in the tank. The fuel temperature sensor is integrated into the pressure sensor or fuel metering device.