No filter no run fluid filtration system

摘要

Improvements to “no filter, no run” fluid filtration systems are described. In one example, a filter includes a movable pin cage that has a first pre-installation position adjacent the bottom end plate and is temporarily connected thereto by a snap connection system, and a second position adjacent the upper end plate where it performs a valve interaction function. In another example, a filter includes non-centered valve pins that are rotatable relative to an upper end plate of the filter.

主权项

1. A filter cartridge comprising:
filter media having first and second ends and defining an interior space and a central axis; a first end plate connected to the first end of the filter media; a second end plate connected to the second end of the filter media; and a valve interaction pin disposed within the interior space, the valve interaction pin is offset from the central axis and is rotatable about the central axis relative to the filter media from a first position to a second position, wherein the filter media includes a central axis, the valve interaction pin is offset from the central axis, and the valve interaction pin is rotatable relative to the filter media about the central axis.