US 11,772,956 B2
Method and apparatus for limiting acidic corrosion and contamination in fuel delivery systems
Nicholas Schultz, Verona, WI (US); James Novak, Evansville, WI (US); Bill Nelson, Lake Mills, WI (US); Randall Boucher, Saco, ME (US); Martin Turnidge, Saco, ME (US); George Risch, South Portland, ME (US); and Todd Breuer, McFarland, WI (US)
Assigned to FRANKLIN FUELING SYSTEMS, LLC, Madison, WI (US)
Filed by FRANKLIN FUELING SYSTEMS, LLC, Madison, WI (US)
Filed on Jun. 6, 2022, as Appl. No. 17/832,794.
Application 17/832,794 is a division of application No. 15/914,535, filed on Mar. 7, 2018, granted, now 11,352,248.
Claims priority of provisional application 62/563,596, filed on Sep. 26, 2017.
Claims priority of provisional application 62/520,891, filed on Jun. 16, 2017.
Claims priority of provisional application 62/509,506, filed on May 22, 2017.
Claims priority of provisional application 62/468,033, filed on Mar. 7, 2017.
Prior Publication US 2022/0298002 A1, Sep. 22, 2022
Int. Cl. B67D 7/76 (2010.01); B01D 17/04 (2006.01); B01D 36/00 (2006.01); B67D 7/32 (2010.01); G01N 33/28 (2006.01); B67D 7/78 (2010.01); F02M 37/44 (2019.01); B67D 7/68 (2010.01); B67D 7/72 (2010.01); B01D 35/02 (2006.01); F02M 37/28 (2019.01); F02M 37/32 (2019.01); B67D 7/62 (2010.01)
CPC B67D 7/766 (2013.01) [B01D 17/045 (2013.01); B01D 35/02 (2013.01); B01D 36/005 (2013.01); B01D 36/006 (2013.01); B67D 7/32 (2013.01); B67D 7/68 (2013.01); B67D 7/725 (2013.01); B67D 7/76 (2013.01); B67D 7/78 (2013.01); F02M 37/28 (2019.01); F02M 37/32 (2019.01); F02M 37/44 (2019.01); G01N 33/2858 (2013.01); B67D 7/3209 (2013.01); B67D 7/62 (2013.01); B67D 2007/329 (2013.01); B67D 2210/0001 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A fuel delivery system comprising:
a storage tank containing a fuel product;
a sump;
a pump having a first portion positioned in the sump and a second portion positioned in the storage tank; and
a water filtration system comprising:
a water filter positioned in the sump and configured to separate the fuel product into a filtered fuel product and a separated water product;
a fuel inlet passageway in fluid communication with the storage tank and the water filter via the pump to direct the fuel product to the water filter;
a fuel return passageway in fluid communication with the water filter and the storage tank to return the filtered fuel product to the storage tank;
a water removal passageway in fluid communication with the water filter to drain the separated water product from the water filter,
an inlet valve positioned along the fuel inlet passageway; and
a controller that opens the inlet valve at a predetermined start time outside of high-demand fuel dispensing hours.