Patent ID: 9677558
Date: 2017-06-13
CPC Classifications: F02M,F04B,F16K,Y10T

Claim:
1. An inlet valve for a fluid pump, comprising: a tappet mounted to slide within a cylinder along a central axis of the cylinder to a closed position and to thereby close a fluid inlet opening, the tappet having an upper portion extending beyond the cylinder when the tappet is in the closed position, an actuator configured to move the tappet, the actuator comprising an armature disposed within the cylinder, and a bushing fixedly connected to the upper portion of the tappet, wherein the bushing remains completely outside the cylinder throughout the movement of the tappet, wherein the actuator and the tappet are held together by a spring force along the central axis but free to move separately from each other and the bushing acts as a coupling element that transmits an actuator driving force to the tappet only along the central axis.