Cummins Filtration Ip, Inc.

Jonathan D Sheumaker

Barry Mark Verdegan

Christopher E Holm

Brian W Schwandt

Mark T Wieczorek

William C Haberkamp

Matthew L Schneider

Terry Shults

Venkata Naga Lakshmi Rekha Patchigolla

Manish Patel

Jeffrey A Massey

Peter K Herman

Arun P Janakiraman

Corey W Trobaugh

Wilson Lee Currier

Jeffery A Massey

Eduardo Javier Pereira

Natashia J Bass

A filter element for filtering a fluid that comprises a pleated filter media and a support structure. The pleated filter media comprises pleats that define an upstream gap along an upstream surface of the pleated filter media and a downstream gap along a downstream surface of the pleated filter media. The support structure extends along the downstream surface of the pleated filter media and supports the pleats. The support structure is folded into two layers comprising a first layer and a second layer within the downstream gap. The first layer inner surface and the second layer inner surface are positioned adjacent to each other within the downstream gap. The support structure comprises at least one spacer that increases a distance between the first layer outer surface and the second layer outer surface such that the differential pressure drop through portion of the support structure that is within the downstream gap is decreased.

Filter element with a spacer

A fluid filtration system may include a fluid filter assembly that includes a filter element configured to filter a fluid and a sensor probe incorporated into the fluid filter assembly. The sensor probe may include a chemically reactive material sensitive to at least one property of the fluid and at least a portion of the sensor probe may be exposed to the fluid.

Fluid quality monitoring and filtration system

Described herein is an ashless oil additive, comprising at least one diazabicyclo or triazabicyclo compound. Also described is a composition comprising an engine oil mixed with an oil additive, wherein the oil additive comprises at least one diazabicyclo or triazabicyclo compound. Further described is a method for boosting the total base number (TBN) of an engine oil composition, comprising adding an oil additive to said engine oil composition, wherein the oil additive comprises at least one diazabicyclo or triazabicyclo compound.

Ashless oil additives and their use as TBN boosters

Disclosed are modular filter-in-filter elements, namely an outer filter element and an inner filter element which may be assembled to form a filter cartridge for use in separation methods and systems. The outer filter element typically functions as a coalescing element and the inner element typically functions as a particulate filter element. The disclosed filter cartridges may be structured for separating water from a hydrocarbon-based liquid fuel as the fuel moves through the cartridge from outside to inside.

Modular filter elements for use in a filter-in-filter cartridge

A water separator and particulate filter with a first or outer stage configured to coalesce water from fluid such as fuel, and a second or inner stage configured to separate coalesced water from the fluid and also remove fine solid contaminants from the fluid. The coalescing stage includes a pleated cylinder of polymeric media. The pleated cylinder has pleat valleys and downstream pleat tips, and release sites defined at the downstream pleat tips. The separator stage includes a non-pleated cylinder of polymeric media surrounding and in contact with outer pleat tips of a multi-layer pleated cylinder.

Two stage fuel water separator and particulate filter utilizing pleated nanofiber filter material

Growing community of inventors

Cookeville, TN, United States of America

Jonathan D Sheumaker