Volvo Truck Corporation

Dale Hoover

Stephen Mark Geyer

Bengt Lassesson

A fueling system for an engine includes a fuel tank, a controller, a fuel nozzle receptacle connected to the fuel tank, the fuel nozzle receptacle including a receptacle sensor configured to send a signal to the contoller indicative of whether a fuel nozzle of a fuel dispenser is received in the fuel nozzle receptacle, and an electric fill slop valve between the fuel tank and the fuel nozzle receptacle, the electric fill stop valve being, configured to be controlled to open and close in response to a signal from the controller. The controller can be configured to receive at least one of (a) a signal whether a fuel nozzle of a fuel dispenser is received in a fuel nozzle receptacle connected to the fuel tank, and (b) a signal whether a fuel level of the fuel tank is full, and to control the electric fill stop valve to close when a signal is sent to the controller that at least one of (a) the fuel nozzle is not received in the fuel nozzle receptacle when the controller is configured to receive the signal whether the fuel nozzle of a fuel dispenser is received in the fuel nozzle receptacle, and (b) the fuel level of the fuel tank is full when the controller is configured to receive the signal whether the fuel level of the fuel tank is full.

Fueling system and method of fueling

A method and system are provided for assessing engine faults. The method includes measuring actual diesel particulate filter (DPF) soot loading, determining expected DPF soot loading, aid determining that a possible engin component fault is an actual engine component fault by determining that measured actual DPF soot loading exceeds the expected DPF soot loading.

Method and system for assessing engine faults

A pressurized liquid fuel tank system arranged to contain a first mass of liquid fuel such as Dimethyl-Ether (DME) is provided. The system includes a first tank having a first volume, a second tank having a second volume, a first conduit between a top of the first tank and a top of the second tank, and a second conduit between the first tank and a bottom of the second tank, wherein a sum of the first volume and the second volume is designed to equal a sum of a first mass volume of the first mass of liquid fuel plus an expansion volume equal to at least 5% of the first mass volume. A vehicle with such a fuel tank system is also disclosed.

Pressurized liquid fuel tank system and vehicle including same

A pressurized fuel injection system for an engine includes a pressure sensor in a low pressure rail, an electronic pressure regulator valve in flow communication with and downstream from the low pressure rail and in flow communication with and upstream from a fuel supply, and a controller configured to receive a pressure signal from the pressure sensor and to control the electronic pressure regulator valve in response to the pressure signal to maintain a target pressure in the low pressure rail.

Pressurized fuel system for an engine, and method for operating a pressurized fuel system for an engine

A vehicle having a dimethyl ether (DME) fuel storage and delivery system for an internal combustion engine, includes a DME fuel filter in the DME fuel storage and delivery system, a DME fuel pump having a fuel inlet downstream of the filter, and, at least one sensor having at least one transducer, the at least one transducer being disposed at the filter and the at least one sensor being operable to detect a change in at least one electrical property of the at least one transducer for determining DME fuel quality according to a secondary effect of a DME fuel condition.

Determining dimethyl ether (DME) fuel quality

A vehicle including a pressurized liquid fuel system includes a first pressurized liquid fuel tank arrangement, a second pressurized liquid feel tank arrangement, and a balancing conduit open to a first fuel tank and to a second fuel tank at least one of above a maximum liquid level of the first fuel tank and a maximum liquid level of the second fuel tank and below a minimum liquid level of the first fuel tank and a minimum liquid level of the second fuel tank. A first return line and a second return Sine to the first and second fuel tanks are configured such that a pressure drop across the first, return line from a pressurized liquid fuel circulation system to the first fuel tank is adapted to be the same as a pressure drop across the second return line from the pressurized liquid fuel circulation system to the second fuel tank. Methods for operating a pressurized liquid fuel system are also disclosed.

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McConnellsburg, PA, United States of America

Dale Hoover