FUEL INJECTION VALVE WITH CYLINDER INTERNAL PRESSURE SENSOR

摘要

In the interior of a resin mold portion that constitutes a fuel injection valve, an amplifying member to which a power source terminal and a signal terminal are connected, is provided, A signal transmitting unit, which outputs a detection signal from a sensor, is connected electrically to a substrate of the amplifying member. Further, the amplifying member is molded integrally when the resin mold portion is formed. In addition, a pressure inside a combustion chamber of an internal combustion engine, which is detected by the sensor, is output through the signal transmitting unit to the amplifying member, is amplified by the amplifying member, and is output externally from the signal terminal.

主权项

1. A fuel injection valve equipped with a cylinder internal pressure sensor, the fuel injection valve being configured to directly inject fuel into a combustion chamber of an internal combustion engine, the sensor being provided at an end of the fuel injection valve, the sensor being configured to detect a cylinder internal pressure in an interior of the combustion chamber, the fuel injection valve comprising:
a signal transmitting unit disposed in an interior of the fuel injection valve and configured to transmit a detection signal based on the cylinder internal pressure; wherein the signal transmitting unit comprises a first transmitting member connected to the sensor; a second transmitting member connected to the first transmitting member and configured to externally output the detection signal; and an amplifying unit disposed on the first transmitting member and configured to amplify the detection signal.