The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 23, 2019

Filed:

Apr. 10, 2017
Applicant:

Caterpillar Inc., Peoria, IL (US);

Inventors:

Siddharth Nair, Dunlap, IL (US);

Manjunath Bannur Nagaraja, Naperville, IL (US);

Ramshankar Muthukumar, Chennai, IN;

Ponraj Balasundaram, Chennai, IN;

Assignee:

Caterpillar Inc., Deerfield, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 61/16 (2006.01); B01D 29/44 (2006.01); F02M 37/22 (2019.01); B01D 29/58 (2006.01);
U.S. Cl.
CPC ...
F02M 61/165 (2013.01); B01D 29/44 (2013.01); B01D 29/58 (2013.01); F02M 37/22 (2013.01); F02M 2200/27 (2013.01);
Abstract

A filter for a fuel injection system includes a body that defines a longitudinal axis, a first end face, a second end, an outer surface extending between the first end face and the second end, an inner surface defining an inner chamber closed at the first end face and open at the second end. The body also defines at least one perforated portion formed in the outer surface extending from the outer surface to the inner surface, at least one slot extending axially along the outer surface. The slot is open and is in fluid communication with the first end face and defines an edge along the outer surface. The edge provides fluid communication between the slot and the perforated portion. Additionally, the edge and an inlet channel of the fuel injection system are adapted to define a first filtration zone. The perforated portion defines a second filtration zone.


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