Filter cartridge and/or multiple-diameter multiple stage filter coalescer separator
AssigneeParker-Hannifin Corporation
InventorsJack David Burns, Stephen Jeane, Andrew Dye, Jeremy Stevens
Life of this patent
Estimating the term…
Abstract
A filter cartridge with easier extraction provided by a roll-out clearance region for a radial seal is provided. The filter cartridge may be a two stage filter with the seal being located between stages and usable in a filtration vessel having a central separation wall with one or more riser pipes. Also, a new vessel is disclosed with multiple diameters for first and second stages of the housing with a larger second stage diameter as compared to the first stage, which can reduce door size and/or cause fluid flow velocities to be slower at the second stage relative to the first stage.
Claims35
A filter cartridge, comprising:
- a filter media tube;
- a seal holder mounted to the filter media tube,
- a seal ring supported by the seal ring holder and facing radially outwardly, the seal ring being a radial seal including seal flange having an annular shape and projecting radially outwardly;
- and
- a roll-out clearance region provided by the seal ring holder on one side of the seal flange.
A filter cartridge for use with a filtration assembly having a first filtration assembly stage and a second filtration assembly stage and a filter sealing sleeve, comprising:
- a filter media tube;
- a seal holder mounted to the filter media tube to separate the filter media tube into a first stage and a second stage,
- a seal ring supported by the seal ring holder and facing radially outwardly, the seal ring being a radial seal for radially sealing against the filter sealing sleeve;
- and
- means along the seal holder and along the second stage for reducing extraction force by at least partly receiving the seal ring in a rolled over condition during removal of the filter cartridge from the filter sealing sleeve.
An assembly for fluid filtration, comprising:
- a housing, and
- at least one filtration element supported within the housing;
- the housing including:
- i) an upstream housing portion with an inlet port for receiving a fluid stream to be filtered,
- ii) a downstream housing portion with an outlet port for discharging a filtered fluid stream,
- iii) a separation wall between the upstream and downstream housing portions, wherein the at least on filtration element is sealing and removably supported within an aperture of the fluid separation wall, enabling fluid entering the inlet port to flow into the filtration element through an upstream portion of the filtration element and out of the filtration element through a downstream portion of the filtration element to the outlet port;
- and
- iv) a door on the upstream portion enabling access to the at least one filtration element, the upstream housing portion having an outer diameter that is smaller than an outer diameter of the downstream housing portion.
Dependencies are inferred from the claim text.