Standpipe with flow restriction valve, and filter cartridge
AssigneeCummins Filtration IP, Inc.
InventorsZemin JIANG, Wassem ABDALLA, Jeffrey B. SHARP, Hendrik AMIRKHANIAN, Jeff HUSBAND, Abby TRUE-DAHL
Life of this patent
Estimating the term…
Abstract
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.
Claims22
A filter assembly, comprising:
- a flow restriction valve controlling fluid flow to an outlet, the flow restriction valve including a ball disposed on a sloped track, and the track includes a step that separates the sloped track into sloped track sections.
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 circular or 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 at an upper end of the standpipe.
The filter housing of claim 18, 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.
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.
A combination of:
- a filter housing having a housing body with a side wall and an end wall defining a filter cartridge space, a standpipe extending from the end wall along a longitudinal axis into the filter cartridge space, the standpipe being generally oval shaped in lateral cross-section, the standpipe including an internal flow passage, and at least one opening in the standpipe that places the internal flow passage in communication with the filter cartridge space;
- a filter cartridge configured for disposition within the filter cartridge space, the cartridge including a filter media suitable for filtering a fluid, a first end plate connected to a first end of the filter media, and a second end plate connected to a second end of the filter media;
- the first end plate includes a blocking pin connected thereto;
- the second end plate includes an opening through which the standpipe can extend when the cartridge is installed in the filter housing;
- and a circular seal in the opening.
Dependencies are inferred from the claim text.