FUEL FILTER ASSEMBLY WITH PRESSURE SENDING UNIT
First Claim
1. A fuel supply system for monitoring the condition of a fuel filter on a engine comprising:
- (a) a fuel line;
(b) a fuel tank;
(c) a fuel transfer pump;
(d) a first fuel filter assembly;
(e) a pressure sending unit;
(f) a second fuel filter assembly; and
(g) an injection pump feeding into a plurality of injectors;
wherein the fuel line interconnects each component of the fuel supply system such that the fuel tank is in fluid communication with the plurality of injectors through the fuel transfer pump;
the first fuel filter assembly having the pressure sending unit;
the second fuel filter assembly; and
the injector pump feeding into a plurality of injectors.
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Accused Products
Abstract
A fuel filter assembly having a pressure sending unit for filtering and monitoring fuel and fuel pressure for diesel engines and the like comprising a filter head, a spin-on element and collection bowl. The filter head is fastened to an engine or other suitable structure by flange, bolts and supports the fuel filter assembly by monitoring fuel pressure by utilizing a pressure sending unit in fluid communication with an outlet port on the filter head. Preferably, filter head is a die cast head and includes therein typical inlet port, outlet port, and connected respectively thereto, inlet chamber and outlet chamber. Filter head is a generally circular structure having a flat annular mounting surface. The filter head may further comprises vent ports, vacuum switch ports or both, which are in fluid communication with outlet ports and return check valve ports that are in fluid communication with inlet ports. Still further, filter head is in fluid communication with a pressure sending unit, which is in electrical communication with a pressure monitoring device or similar warning system.
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Citations
19 Claims
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1. A fuel supply system for monitoring the condition of a fuel filter on a engine comprising:
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(a) a fuel line; (b) a fuel tank; (c) a fuel transfer pump; (d) a first fuel filter assembly; (e) a pressure sending unit; (f) a second fuel filter assembly; and (g) an injection pump feeding into a plurality of injectors; wherein the fuel line interconnects each component of the fuel supply system such that the fuel tank is in fluid communication with the plurality of injectors through the fuel transfer pump;
the first fuel filter assembly having the pressure sending unit;
the second fuel filter assembly; and
the injector pump feeding into a plurality of injectors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for monitoring the condition of a fuel filter on a diesel engine comprising:
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(a) installing a first fuel filter having a pressure sending unit with a fuel pressure monitoring device in a fuel line between a fuel transfer pump and a second fuel filter, (b) positioning the fuel pressure monitoring device in a location that can be observed by an operator of the diesel engine wherein, the first fuel filter is in fluid communication with the fuel transfer pump and the second fuel filter;
the first fuel filter has a micron rating in the range of about 2-5 microns with the pressure sending unit capable of discriminating fuel pressures in the range of about 0 to about 30 pounds. - View Dependent Claims (11, 12, 13, 14)
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15. A method for monitoring the condition of a fuel filter on a diesel engine comprising:
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(a) installing a first fuel filter in a fuel line between a fuel tank and a second fuel filter, (b) installing a vacuum gauge sensor with a monitoring device in the fuel line between a second fuel filter and the engine; (c) positioning the fuel vacuum gauge monitoring device in a location that can be observed by an operator of the diesel engine; wherein, the first fuel filter is in fluid communication with the fuel tank and the second fuel filter;
the first fuel filter has a micron rating in the range of about 2-5 microns, and the vacuum gauge monitoring device capable of discriminating engine vacuum about 0″
of Hg to about 5″
of Hg. - View Dependent Claims (16, 17, 18, 19)
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Specification