Air filter for compressed air
AssigneeIngersoll-Rand Industrial U.S., Inc.
InventorsHenry Y. Mark, Janez Jakop, Scott A. Johnson
Life of this patent
Estimating the term…
Abstract
A filter for compressed air systems is provided. The filter includes a filter housing with a filter therein between an air inlet and an air outlet. Compressed air flowing between the air inlet and the air outlet passes through the filter housing and the filter element. A base is removably fastened to the filter housing which may be separated from the filter housing to allow the filter element to be removed and replaced.
Claims21
-20. (canceled)
A filter for a compressed air system, comprising:
- a filter housing;
- a base enclosing one end of the filter housing, the filter housing and the base defining an enclosed space configured to house a filter element, the base defining an opening configured to receive the filter element for removal and replacement of the filter element;
- and
- an air inlet and an air outlet defined by the filter housing or the base, wherein the air inlet is configured to be in fluid communication with a first side of the filter element and the air outlet is configured to be in fluid communication with a second side of the filter element such that airflow from the air inlet to the air outlet passes through the filter element.
The filter according to claim 1, further comprising a first valve between the air inlet and the air outlet, a second valve between the air inlet and the enclosed space, and a third valve between the air outlet and the enclosed space, wherein compressed air flows unfiltered between the air inlet and the air outlet when the first valve is opened, and compressed air does not flow to the enclosed space when the second valve and the third valve are closed, the base and the filter housing being separable to remove and replace the filter element while unfiltered compressed air continues to flow from the air inlet to the air outlet.
A compressed air system, comprising:
- a filter for compressed air, including:
- a filter housing;
- a base enclosing one end of the filter housing, the filter housing and the base defining an enclosed space for housing a filter element, the base defining an opening configured to receive the filter element for removal and replacement of the filter element;
- and
- an air inlet and an air outlet defined by the filter housing or the base, wherein the air inlet is configured to be in fluid communication with a first side of the filter element and the air outlet is configured to be in fluid communication with a second side of the filter element such that airflow from the air inlet to the air outlet passes through the filter element;
- and
- an air dryer for removing moisture from the compressed air;
- wherein the filter is disposed on an inlet side of the air dryer to thereby filter the compressed air before the compressed air flows through the air dryer.
Dependencies are inferred from the claim text.