Cummins Filtration Ip, Inc.

Fleetguard, Inc.

Dober Chemical Corporation

Other

Harold R Martin

Barry Mark Verdegan

Ismail C Bagci

Peter K Herman

Joseph C Drozd

Abby True-Dahl

Ted S Loftis

Thomas J Blakemore

Dennis R Kelly

Doug Hudgens

Wassem Abdalla

Mark J Johnson

Yu-Sen Chen

David M Stehouwer

Kevin C South

Zemin Jiang

Roger L Zoch

Stephen L Fallon

Jeffrey A Husband

Brian K Wagner

Rahul B Kallurwar

Aaron M Wells

James L Eickhoff

Wilson Lee Currier

Jeff Morgan

David L Brisk

Scott Towsley

A fluid filter device is described, where a flow attachment member provides a unique interface between the filtering element and a filter head. The fluid filter described herein generally provides a flow structure that is localized and sealed. The flow attachment member is configured to communicate fluid into and out of the fluid filter, and is configured to localize fluid flow both into and out of the fluid filter within a separating structure of the flow attachment member. The flow attachment member further includes a seal structure configured to substantially prevent or at least confine leakage to a localized area away from proximity of the edges of the housing. A composite filter head is described that has integrally molded inlet and outlet fittings.

Filter with localized flow attachment and filter head

A filtration device is provided that includes a filter component and an additive component. The filter component includes concentrically arranged filtering elements disposed in a filter-in-filter configuration. The additive component includes at least one additive material that is introduced into a working fluid to be filtered. The filter component and additive component provide an assembly for a filtration system that would filter a variety of working fluids. The filter component and additive component provides an assembly that can filter fluids more efficiently. As a result, fluids may enjoy, for example, extended drainage intervals and thereby reduce component wear.

Filtration device with releasable additive

A container () for releasing a chemical additive () in a fluid material selected from a lubricant or hydraulic fluid composition comprises a fluid material-impermeable casing () having a hollow interior and an additive composition () comprising at least one fluid material-soluble additive. The additive () is held within the container () by a least one fluid material-permeable element () provided at or near an opening () in the casing () and is effective to provide for release of additive(s) () into the fluid material. Methods of releasing additives () into fluid material are also provided.

Controlled release of additives in fluid systems

A separation assembly is generally described that can chemically treat condensate material in a fluid stream. One particular example of a separation assembly is a crankcase filtration assembly used in engine oil filtration and that includes an additive material disposed within the crankcase filtration assembly. The additive material chemically treats condensate material of blow-by fluids received by the crankcase filtration assembly when a condition is present in the condensate material. For example, the crankcase filtration assembly provides a unique structure with a chemically treated component that can reduce an acidic condition in condensate material received by the crankcase filtration assembly, and even more generally may extend engine oil life.

Crankcase filtration assembly with additive for treating condensate material

A filter assembly is provided that includes an immobilized base material in combination with a slow release mechanism for introducing an additive base material into a lubrication fluid flowing through the filter assembly. The introduced base material is a weaker base material than the base material of the immobilized base material. The combination of the immobilized base material and the additive base material provides a system that would work to neutralize acids for all lube formulations commonly used in the field. As a result, oil drain intervals can be extended.

Filter assembly with a weak base slow release mechanism

A pressure gradient dosing system is provided for a fluid supply system. A flow passage has first and second pressure zones having a pressure gradient therebetween. An additive reservoir in an additive delivery system responds to the pressure gradient to release additive to the flow passage.

Pressure gradient dosing system for fluid supply

The present invention provides a filter assembly containing a filter element and a container as a depot for a liquid additive. The container can include an inlet and an outlet, which are configured to allow a liquid to flow into the container mix with the contained additive and then flow out into the system. It has been observed that a liquid flowing through a filter assembly exhibits a pressure gradient within the filter. Consequently, the inlets and outlets to the container can be positioned to take advantage of the pressure gradient to enhance the addition of the additive to the liquid in the filter assembly.

Liquid additive slow-release apparatus driven by a filter pressure gradient

This invention relates to a fuel filter for use with internal combustion engines. The fuel filter includes a fuel additive that can be released into fuel. The rate of release for the fuel can be controlled. In one form the fuel additive can be mixed with a matrix material and released at a substantially constant rate to maintain a uniform level of fuel additive in the fuel. Use of the present invention provides a fuel filter having an extended life span that is longer than fuel filters typically used with combustion engines.

Fuel filter including slow release additive

A fuel additive composition comprising a sustained release component and an additive component, the additive component is effective to provide at least one benefit to a fuel when released into the fuel, the sustained release component is (1) a polymeric material, (2) substantially insoluble in the fuel, and (3) effective to reduce the rate of release of the additive component into the fuel relative to an identical composition without the sustained release component.

Fuel additive compositions

A container for releasing a chemical additive into a fuel composition comprises a fuel-impermeable casing having a hollow interior and an additive composition comprising at least one fuel soluble additive. The additive is held within the container by at least one fuel-permeable element provided at or near an opening in the casing and is effective to provide for release of additive(s) into the fuel composition. Methods of releasing additives into fuel compositions are also provided.

Controlled release additives in fuel systems

Growing community of inventors

Cookeville, TN, United States of America

Harold R Martin