Patent ID: 7886767
Filing Date: 2011-02-15
Classification: F15B,F16K,Y10T

Abstract:
1. A hydraulic valve comprising: a valve body; a valve spool movable relative to the valve body for controlling fluid flow through the valve body; a spool return assembly for biasing the valve spool into a centered position relative to the valve body; and a position sensor assembly having a sensor portion affixed relative to the valve body and a movable portion that is movable relative to the sensor portion in response to movement of the valve spool, the sensor portion being responsive to a position of the movable portion for outputting a signal indicative of the position of the valve spool relative to the valve body, the movable portion of the position sensor assembly including a glide member, first and second springs, and a magnet, the magnet being received in a cavity of the glide member, the first spring holding the magnet relative to the glide member and biasing the second spring into engagement with one of the spool and the spool return assembly, wherein the cavity of the glide member ends at a partition, the first spring is received in the cavity of the glide member and biases the magnet against the partition.