A water level sensor device of a fuel filter may include a printed circuit board and a water level sensor composed of electrically conductive plastic. The water level sensor may be coupled to the printed circuit board via an electrically conductive metal element. The metal element may be coupled to the water level sensor via a press-fit assembly. The metal element may include a sharp-edged fastening contour configured to tear open the plastic of the water level sensor when the metal element is pressed against the water level sensor.

The present invention is a system and method for adapting and modifying an existing mono-fuel delivery system for an internal combustion engine to run as a bi-fuel system by reusing and repurposing OEM components of the mono-fuel system. The bi-fuel system makes use of an integration plate that may be mounted to the system fuel filter in substantially the same location as the fuel filter is mounted in the mono-fuel configuration. The integration plate also may deliver either fuel types into the existing engine fuel intake port thus the system does not require the creation of a secondary fuel intake port for the secondary fuel. The integration plate may also be situated such that it minimizes the space it must use within the engine compartment and it may use the preexisting engine mounting points designed for the fuel filter in the mono-fuel system.

A water level sensor device of a fuel filter may include a printed circuit board and a water level sensor composed of electrically conductive plastic. The water level sensor may be coupled to the printed circuit board via an electrically conductive metal element. The metal element may be coupled to the water level sensor via a press-fit assembly. The metal element may include a sharp-edged fastening contour configured to tear open the plastic of the water level sensor when the metal element is pressed against the water level sensor.

A fuel filter for a diesel engine may include an upper cover forming inflow and outflow passages of diesel fuel, a housing integrally mounted in a vehicle body, coupled to the upper cover and housing a filter assembly, and a body penetrating a central portion of the filter assembly, disposed between the upper cover and the filter assembly and integrally forming the upper cover, a heater assembly, and a moisture sensor, in which the heater assembly may be configured to selectively operate according to a detection signal of a fuel temperature sensor that is provided in the engine body.

The present application relates to apparatus for mounting on a rotatable portion of a diesel filter for controlling a drainage valve. The apparatus comprises an outlet for draining liquid from the diesel filter, mounting apparatus for fixedly mounting the apparatus on the rotatable portion, and a manipulation portion for manipulation by a user's hand which projects, at least in part, radially outward from said rotatable portion, in use. The application also relates to a finger grip wheel for a diesel filter. The finger grip wheel has a drainage outlet and at least one finger detent for accommodating a tip of a user's finger to facilitate rotation of the finger grip wheel.

A fluid filter system is provided having a canister, a bowl, and a filter positioned inside the canister. The filter includes a sleeve defining a reservoir with filter media surrounding the reservoir. A cover is disposed on a first end of the sleeve and an end cap is disposed on a second end of the sleeve, the end cap having a lid extending across the filter media and sleeve. The bowl includes a sidewall, a floor, and an upper edge. The bowl further includes an upstanding post extending from a floor and the lid further includes a pocket formed along the lid. The pocket defines a cavity disposed outside of the reservoir and includes a threaded portion configured to threadably receive the upstanding post of the bowl. An O-ring seal provides a seal between the bowl and the canister when the upstanding post is threaded to the pocket.

The present invention is a system and method for adapting and modifying an existing mono-fuel delivery system for an internal combustion engine to run as a bi-fuel system by reusing and repurposing OEM components of the mono-fuel system. The bi-fuel system makes use of an integration plate that may be mounted to the system fuel filter in substantially the same location as the fuel filter is mounted in the mono-fuel configuration. The integration plate also may deliver either fuel types into the existing engine fuel intake port thus the system does not require the creation of a secondary fuel intake port for the secondary fuel. The integration plate may also be situated such that it minimizes the space it must use within the engine compartment and it may use the preexisting engine mounting points designed for the fuel filter in the mono-fuel system.

A fuel filter includes: a casing having a chamber for collecting water separated from fuel; a water level sensor that extends into the casing and is provided with an electrical water level contact extending into the collection chamber and an intermediate electrical contact arranged inside the casing and outside the collection chamber; and a water separator element having: a filtering element; a filtering element support provided with a through opening crossed by the water level sensor so that the electrical water level contact extends into the collection chamber; and a conductive element provided on the filtering element support and provided with: a water level electrode extending into the collection chamber; and a contact electrode electrically connected with the water level electrode, spaced apart from it and in contact with the intermediate electrical contact of the water level sensor.

A work machine includes an engine, a fluid path via which a fuel oil is supplied to the engine, a first filter provided in the fluid path, a pump provided between the engine and the first filter in the fluid path to suck and output the fuel oil, a second filter provided between the engine and the pump in the fluid path, and a third filter provided between the engine and the second filter in the fluid path.

A fuel filter may include a housing and a filter element positioned within the housing. A water collection chamber may be defined in the housing and may be constructed and arranged to collect water separated from a fuel. A water level sensor may be positioned within the water collection chamber. The water level sensor may be constructed and arranged to detect a water level in the water collection chamber. The water level sensor may include an electrically conductive plastic first terminal.