Standpipe with flow restriction valve, and filter cartridge
View Patent ↗A “no filter, no run” filtration system that is designed to verify that a filter cartridge is present to safe-guard against damage to fuel injectors, associated fuel components, etc. and engine malfunctions. Fuel flow to the engine is prevented altogether or permitted in an amount insufficient to allow engine operation if a filter cartridge is not installed, and an appropriately designed filter cartridge is required to be used in order to permit sufficient fuel flow for engine operation. In one embodiment, a flow restriction valve is provided that includes a ball.
1. A filter cartridge comprising:
a filter media suitable for filtering a fluid, the filter media including a first end, a second end opposite the first end, and a clean fluid side;
a first end plate connected to the first end of the filter media;
a blocking pin connected to a center of the first end plate by ribs, the pin extending into the clean fluid side;
a skirt surrounding the blocking pin and the ribs; and
a second end plate connected to the second end of the filter media, the second end plate including a hole that allows passage of a fluid passageway member therethrough the skirt includes a base portion connected to the first end plate, and the skirt extends toward the second end plate.
2. The filter cartridge of claim 1 , wherein the base portion of the skirt is a solid circumferential base portion that is connected to the first end plate and to ends of the ribs, and a plurality of spaced tabs extending from the base portion.
3. The filter cartridge of claim 2 , wherein a gap is provided between the tabs.
4. The filter cartridge of claim 1 , further comprising a seal in the hole of the second end plate.
5. The filter cartridge of claim 4 , wherein the hole is circular or oval.
6. The filter cartridge of claim 4 , wherein the seal is circular or oval.
7. The filter cartridge of claim 4 , wherein the hole is oval and the seal is circular.
8. A filter housing, comprising:
a housing body having a side wall and an end wall defining a filter cartridge space, the end wall forming a closed end of the filter cartridge space, and the body having an open end opposite the end wall;
a standpipe extending from the end wall along a longitudinal axis into the filter cartridge space toward the open end, the standpipe being generally oval shaped in lateral cross-section, the standpipe including an internal flow passage, and an opening in the standpipe that places the internal flow passage in communication with the filter cartridge space; and
a filter cartridge alignment structure connected to an upper end of the standpipe, the filter cartridge alignment structure comprises a generally oval, conically shaped structure at a top end thereof with an exterior surface facing the filter cartridge space, an axial opening through a top end of the generally oval, conically shaped structure, and at least one protrusion on the exterior surface of the generally oval, conically shaped structure, the protrusion including an angled outer edge.
9. The filter housing of claim 8 , further comprising a sealing plate disposed around the standpipe, the sealing plate including an oval shaped seal in sealing engagement with an outside surface of the standpipe, and the sealing plate including an outside surface that is circular.