Internal-combustion engines – Charge forming device – Fuel flow regulation between the pump and the charge-forming...
Patent
1994-06-17
1998-05-05
Miller, Carl S.
Internal-combustion engines
Charge forming device
Fuel flow regulation between the pump and the charge-forming...
123516, 137192, F02M 3704
Patent
active
057461848
ABSTRACT:
A fuel delivery system (200) is provided for removing air from fuel delivered to a diesel engine, and includes a primary water separation filter (16), and a secondary air separation filter (18). The air separation filter (18) is located downstream from the water separation filter (16) for delivering substantially gas-free fuel to the engine at a positive pressure in a volumetric rate exceeding engine fuel demand. The air separation filter includes a vessel (58), a fuel inlet into the vessel (300), a fuel outlet (424) leading to the engine, an inlet side fuel return discharge (294), an outlet side fuel return discharge (428) leading to the fuel tank, and a filter cartridge (58) including filter element (94) presenting numerous small openings therein for permitting the passage of fuel therethrough but screening out bubbles entrapped in the fuel. As the bubbles are trapped on the element, they float upwardly for discharge through gas discharge port (294). Bubbles passing through element 94 are swept upwardly for discharge through the outlet side discharge port (428) to ensure a substantially gas and vapor-free supply of fuel to the engine.
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Ekstam Patent, L.L.C.
Miller Carl S.
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