Cummins Filtration Ip, Inc.

Cummins Flitration Ip, Inc.

Chad T Brummitt

Wassem Abdalla

Jeffrey A Husband

Ismail C Bagci

Kevin C South

Zemin Jiang

Chad M Thomas

Philip S Hall

Peter K Herman

Barry Mark Verdegan

Michael J Connor

David Paul Genter

Hendrik Amirkhanian

Gregory D Shope

Abby True-Dahl

Terry Shults

Norman C Blizard

Carey A Curt

Eric R Burgan

Jeffrey B Sharp

Melvin Douglas McCormick

Aaron M Wells

Dean Olson

Donna Butler

Yiming Zhang

Rahul B Kallurwar

Ricky England

Joel M Blunt

A connection between a fluid filter and a head is described that permits quick connection/disconnection between the two without requiring disconnection of fluid lines from the head. The head includes a lock to connect inlet and outlet fluid lines to a fluid filter using a non-threaded attachment method. The lock that retains the head to the fluid filter is flexible to allow for connection and disconnection. The head has fluid inlet and outlet ports to which fluid lines attach to flow unfiltered fluid into and filtered fluid out of the fluid filter when the head is connected to the fluid filter. The head closes the fluid filter, which has a protrusion with adjacent passageways that guide and separate unfiltered from filtered fluid.

Fluid filter and head with quick connector

Improvements to 'no filter, no run' fluid filtration systems are described. In one example, a filter includes a movable pin cage that has a first pre-installation position adjacent the bottom end plate and is temporarily connected thereto by a snap connection system, and a second position adjacent the upper end plate where it performs a valve interaction function. In another example, a filter includes non-centered valve pins that are rotatable relative to an upper end plate of the filter.

No filter no run fluid filtration system

A filter within a filter cartridge design is described that includes a sealing structure on an endplate of an outer filter element. Generally, the sealing structure includes an annular flange on the endplate that can directly seal against an interior surface of a housing when the filter cartridge is assembled for use. During filtration, the annular flange prevents a working fluid from bypassing the outer filter element. The sealing flange can seal with the housing in a press fit engagement.

Filter cartridge having a filter within a filter, and an endplate sealing structure on an outer filter element

No filter no run fluid filtration systems

A valve assembly that is useable with a fuel filter housing to control the flow of fuel through the fuel filter housing. The valve assembly comprises two primary parts that are connected together via a snap connection, and when the valve assembly is installed on the fuel filter housing, means on the fuel filter housing prevent disconnection of the snap connection. One or both of the primary parts of the valve assembly can be provided with a tamper evident feature that will indicate whether someone has tried to remove or disassemble the valve assembly.

Fuel filter housing with snap lock valve asssembly

A 'no filter, no run' filtration system that is designed to verify that an appropriate filter cartridge is installed. A flow control sleeve is provided on a standpipe to control the flow of fluid, for example fuel, into the standpipe. The sleeve can be axially moveable between closed and open positions, with one or more members on an installed filter cartridge designed to release the sleeve to permit the movement from the closed position to the open position to allow fluid flow. A spring acts on the sleeve to bias the sleeve back to the closed position upon removal of the filter cartridge. The sleeve can also be designed without axial movement, but nonetheless is configured to be opened and closed to control fluid flow into the standpipe.

Fuel filter assembly with flow restriction sleeve

Engine filter

A 'no filter, no run' filtration system that is designed to verify that an appropriate filter cartridge is installed. A flow control valve is provided on a standpipe to control the flow of fuel into the standpipe. The valve has a component that has a first position at which any flow through the flow passage past the valve is insufficient to permit engine operation, and a second position at which a greater amount of flow through the flow passage is permitted by the valve in an amount sufficient to permit engine operation, and the component rotates about the longitudinal axis when it moves from the first position to the second position and from the second position to the first position.

Fuel filter assembly with flow restriction valve

Growing community of inventors

Algood, TN, United States of America

Chad T Brummitt