To provide a fuel injection valve including a fuel pressure sensor capable of suppressing restriction on the mounting position of the fuel pressure sensor.
The fuel injection valve includes: a body internally formed with a high-pressure passage circulating high-pressure fuel toward a nozzle port; the fuel pressure sensor having a piezoelectric element 41 (sensor element) attached to the body and outputting a detection signal according to the pressure of the high-pressure fuel and a transmission circuit 42 (transmission means) wirelessly transmitting the detection signal outputted from the piezoelectric element 41; and a reception circuit (reception means) receiving the detection signal wirelessly transmitted from the transmission circuit 42. Therefore, it is possible to solve the problem of securing a lead wire arrangement path which becomes a problem when the lead wire outputting the detection signal is provided at the fuel pressure sensor, thus improving the degree of freedom in the mounting position of the fuel pressure sensor.
COPYRIGHT: (C)2011,JPO&INPIT
Jun Kondo
Fujino Tomoki
| JP2009057927A | ||||
| JP2007085319A | ||||
| JP11194060A | ||||
| JP2002214060A |
Yasunari Kurita
Kyoko Hino
Satoru Ando