Hydraulic system with a filter screen for internal combustion engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 23, 2002
Grant Date -
N/A
app pub date -
Jun 1, 2000
filing date -
Apr 19, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention describes a filter screen for removing debris from the hydraulic actuating fluid in an internal combustion engine having a hydraulic pump for supplying hydraulic actuating fluid to hydraulically-actuated unit fuel injectors. An upper portion of a priming reservoir is mounted on a front cover of the engine. The front cover forms a lower reservoir portion. A screen assembly is positioned adjacent to an interface defining an entrance from the upper reservoir portion to the lower reservoir portion. The screen assembly includes a filter screen enclosing the entrance to force the actuating fluid to pass through the filter screen, thus retaining debris that exceed the mesh size of the filter screen.
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