A method and apparatus are provided for controlling a fuel delivery system to limit acidic corrosion. An exemplary control system includes a controller, at least one monitor, an output, and a remediation system. The monitor of the control system may collect and analyze data indicative of a corrosive environment in the fuel delivery system. The output of the control system may automatically warn an operator of the fueling station of the corrosive environment so that the operator can take preventative or corrective action. The remediation system of the control system may take at least one corrective action to remediate the corrosive environment in the fuel delivery system.

A method and apparatus are provided for controlling a fuel delivery system to limit acidic corrosion. An exemplary control system includes a controller, at least one monitor, an output, and a remediation system. The monitor of the control system may collect and analyze data indicative of a corrosive environment in the fuel delivery system. The output of the control system may automatically warn an operator of the fueling station of the corrosive environment so that the operator can take preventative or corrective action. The remediation system of the control system may take at least one corrective action to remediate the corrosive environment in the fuel delivery system.

A filter assembly includes a filter housing having a longitudinal axis, the filter housing divided into a first filter chamber and a second filter chamber, a first element bottom endplate, a second element top endplate, an intermediate endplate positioned along the longitudinal axis between the second element top endplate and the first element bottom endplate, a first filter element housed within the first filter chamber and comprising first filter media positioned between the first element bottom endplate and the intermediate endplate, and a second filter element housed within the second filter chamber and comprising second filter media positioned between the second element top endplate and the intermediate endplate.

A fuel filter assembly for filtering a fuel-liquid mixture comprises a filter cartridge and a return tube. The filter cartridge comprises a filter media and a housing. The filter media defines an open central region therein. The housing contains the filter media. The return tube extends into the central region of the filter media. The return tube collects and drains liquid from a bottom inner region of the filter media.

Various example embodiments relate to an automatic drain system for use with a fluid water separator. The automatic drain system includes a liquid-in-fuel sensor. The liquid in-fuel sensor is configured to detect a liquid level in a water sump. The solenoid has an open state and a closed state. A control unit is configured to activate the solenoid in response to a signal from the liquid-in-fuel sensor. Activation of the solenoid causes the solenoid to go from the closed state to the open state. The automatic drain system is placed in a condition for allowing fluid flow through the automatic drain system from the water sump.

A water drainage device for a filter module is provided with a valve housing that has a valve bore and a valve body received at least in sections thereof in the valve bore. The water drainage device can be transferred from a closed state, in which the valve body seals in relation to a valve seat of the valve bore, into an open state, in which the valve body is lifted off the valve seat, and transferred from the open state into the closed state. The valve body, upon transfer of the water drainage device from the closed state into the open state, moves linearly along the longitudinal axis of the valve bore and away from the valve seat along or at a slant to a direction of gravity in downward direction.

A water drainage device for a filter module is provided with a valve housing that has a valve bore, a valve body received at least in sections in the valve bore, an actuation rod for actuating the valve body, and a coupling device operatively connecting the actuation rod with the valve body and enabling a tilting of the actuation rod in relation to the valve body. The water drainage device can be transferred from a closed state, in which the valve body seals in relation to the valve seat of the valve bore, into an open state, in which the valve body is lifted off the valve seat, and in reverse. The filter module has a filter housing with a housing top part. The valve body, upon transfer of the water drainage device from closed state into open state, moves toward the housing top part of the filter housing.

A method for dewatering an operating substance, more particularly a fuel, preferably during the operation of a vehicle, more particularly a rail vehicle, includes conveying an operating substance from an operating substance tank. Water present on or in the fuel is first collected in a water container, and water is conveyed, in chronological order, from the water container back to the operating substance tank, then to an exhaust system and/or from the operating substance tank to the exhaust gas system. A dewatering device for an operating substance, more particularly a fuel for a vehicle, more particularly a rail vehicle, includes a water container, in which water present on or in the fuel is collected. The dewatering device has a dewatering conduit or line which runs from the water container to an operating-substance tank of the vehicle and/or to an exhaust-gas system of the vehicle.

A method for dewatering an operating substance, more particularly a fuel, preferably during the operation of a vehicle, more particularly a rail vehicle, includes conveying an operating substance from an operating substance tank. Water present on or in the fuel is first collected in a water container, and water is conveyed, in chronological order, from the water container back to the operating substance tank, then to an exhaust system and/or from the operating substance tank to the exhaust gas system. A dewatering device for an operating substance, more particularly a fuel for a vehicle, more particularly a rail vehicle, includes a water container, in which water present on or in the fuel is collected. The dewatering device has a dewatering conduit or line which runs from the water container to an operating-substance tank of the vehicle and/or to an exhaust-gas system of the vehicle.

The invention relates to a separating device (1) for fluid-collecting sumps, in particular of filter or water separators, comprising a line pipe (10) which has a connection opening (11) and an outlet opening (12), wherein the line pipe (10) is equipped with a flow restrictor (20), a phase detection sensor (30) for detecting a phase boundary (G) between a light fluid (F1) and a heavy fluid (F2), and an electronically actuatable outlet valve (40) between the phase detection sensor (30) and the outlet opening (12). The outlet valve (40) is actuated by a regulating device (45) such that the outlet valve (40) is brought from an open position into a closed position when a phase boundary (G) is detected by the phase detection sensor (30). The invention additionally relates to fluid container devices (100) comprising a fluid-collecting sump (101) and such a separating device (1).