Fuel filter system used to filter particulate matter from fuel of engines, has housing, filter cartridge, standpipe extending within filter cavity and defining drain passage, and pressure regulation valve positioned along drain

摘要

A fuel filter system (32) comprises a housing (37) defining a filter cavity (39) with a top portion; a filter cartridge (50) in the filter (34) cavity; a standpipe (52) extending within the filter cavity and defining a drain passage (65) with an opening at the top portion of the filter cavity that drains to a fuel tank; and a pressure regulation valve (72) positioned along the drain.