Fuel injection valve and device for injecting fuel

摘要

The fuel injection valve (1) for the intermittent injection of fuel into the combustion chamber of an internal combustion engine has a valve housing (12) that defines a longitudinal axis (14) and is provided with a high-pressure chamber (16). The connecting part (20) of the valve housing (12) has two identically formed high-pressure connections (22, 24) for high-pressure fuel lines. The two identically formed high-pressure connections (22, 24) are arranged in a common connecting face (30′) in such a way that said high-pressure connections are oriented in the same direction and the connection axes (22′, 24′) thereof run parallel to each other. In the interior of the valve housing (12), the high-pressure connections (22, 24) are connected to each other and to the high-pressure chamber (16).

主权项

1. A fuel injection valve for the intermittent injection of fuel into the combustion chamber of an internal combustion engine, having a valve housing which comprises a high-pressure chamber with a discrete accumulator chamber and defines a longitudinal axis and which, at one side, bears a nozzle body connected to the high-pressure chamber and, at an opposite side, has a port part with two high-pressure ports for high-pressure fuel lines, which high-pressure ports define in each case a port axis and are connected to the high-pressure chamber and in unthrottled fashion to one another, and the high-pressure ports are arranged in a common port surface of the port part so as to be oriented in the same direction and such that their port axes run parallel, each of the two high-pressure ports has a conically tapering high-pressure sealing surface proceeding from a base of the respective high-pressure port, the axis of which high-pressure sealing surface coincides with the respective port axis, wherein a longitudinal bore runs, concentrically with respect to the port axis and the longitudinal axis, from the high-pressure sealing surface of the first high-pressure port through a port body forming the port part to the face side, facing away from the high-pressure ports, a blind bore runs from the high-pressure sealing surface of the second high-pressure port in the direction of its port axis, which blind bore opens into a transverse bore, which in turn opens into the longitudinal bore, the longitudinal bore opens into the discrete accumulator chamber and the longitudinal bore, the blind bore and the transverse bore form a connecting line.