Patent ID: 9091237
Filing Date: 2015-07-28
Classification: F02M,F16F,H01L

Abstract:
1. An injector for a fluid, comprising: a valve housing; a fluid intake; a valve chamber having a spray-discharge orifice; one of a piezoelectric or magnetostrictive actuator situated in the valve housing; a fluid-guiding pipe connecting the fluid intake and the valve chamber, the fluid-guiding pipe being situated in the valve housing running along an actuator; and a hollow cylinder surrounding the actuator, the hollow cylinder, as a prestressed spring, configured to generate a pressure force acting upon the actuator, the hollow cylinder having a cylinder wall opening running axially with respect to the longitudinal axis through a cylinder wall for a whole length of the cylinder wall, wherein the pipe is disposed in the valve housing so that the fluid-guiding pipe extends radially into the cylinder opening; At least a portion of said fluid-guiding pipe being located within said cylinder wall opening.