Abstract:
The present invention relates to a method for supplying fuel for a motor of a vehicle by a fuel supply system comprising: a first tank (2, 22) for containing a first fuel; supply means (5, 41) for supplying fuel to the motor; a supply line, for allowing said first fuel to pass from said first tank (2, 22) to said supply means (5, 41); a return line, for allowing fuel to pass from said supply means (5, 41) to said first tank (2, 22); a recirculating line (10, 30), connected with said supply line and said return line, for allowing fuel to pass from said return line to said supply line; and valve means (9, 12; 45, 46), configured to selectively direct fuel from said return line to said supply line by said recirculating line (10, 30), or to said first tank (2, 22); wherein said method comprises the steps of controlling the speed vehicle; controlling the vehicle motor load; defining a first threshold value of the vehicle speed; defining a second threshold value for the vehicle motor load; letting said first fuel passing from said first tank (2, 22) to said supply means (5, 41) through said supply line, and from said supply means (5, 41) to said first tank (2, 22) through said return line, preventing passage of fuel along said recirculating line (10, 30), when the vehicle speed is lower than said first threshold value and/or motor load is lower than said second threshold value; or making said first fuel passing from said first tank (2, 22) to said supply means (5, 41) through said supply line and then through a closed circuit comprising a part of said return line, said recirculating line (10, 30) and a portion of said supply line, permitting passage of said first fuel through said recirculating line (10, 30), so that said first fuel arrives again within said supply means (5, 41), when the vehicle speed is higher than said first threshold value and motor load is higher than said second threshold value, so as to prevent an excessive increase within said first tank caused by inlet within the first tank (2, 22) of the first fuel warm arriving from said supply means (5, 41).
Abstract:
A first aspect provides a device for providing an additive fuel in gaseous state to a Diesel engine. The device comprises a fuel inlet for receiving the additive fuel in substantially liquid state; a fuel outlet for providing the additive fuel in substantially gaseous state and a valve module for controlling a fuel flow from the fuel inlet to the fuel outlet. The device further comprises a first fuel duct between the fuel inlet and the valve module a heating module for heating fuel in the first fuel duct, a control inlet for receiving an inlet air signal, the signal providing information an air flow into the Diesel engine. In this device, the control inlet is connected to the valve module for controlling the valve such that a positive relation between the air flow and the fuel flow is established.
Abstract:
Die Erfindung betrifft einen Gasmotor (1) mit einer Mischeinheit (7) zum Mischen von zwei Gaskomponenten, welche einem oder mehreren Brennräumen des Gasmotors (1) zugeführt werden, insbesondere zum Mischen von Brenngas (9) und Ladeluft (8), und mit zwei Verdichtern (4, 4'), über welche die beiden Gaskomponenten vor der Zuführung zur Mischeinheit (7) separat verdichtet werden. Dabei werden beide Verdichter (4, 4') von einer im Abgasstrang des Gasmotors angeordneten Turbine (3, 3') angetriebenen.
Abstract:
Die Erfindung betrifft eine Verbrennungskraftmaschine (10) für einen Kraftwagen, welche mit wenigstens einem gasförmigen Kraftstoff betreibbar ist und wenigstens zwei Brennräume (14) aufweist, mit einer Gasversorgungseinrichtung (16), welche wenigstens eine Speichereinrichtung (28) zum Speichern des gasförmigen Kraftstoffs, jeweilige, den Brennräumen (14) zugeordnete Injektorelemente (18) zum wenigstens mittelbaren Einbringen des gasförmigen Kraftstoffs in die Brennräume (14) und ein den Injektorelementen (18) gemeinsames, mit der Speichereinrichtung (28) und mit den Injektorelementen (18) fluidisch verbundenes Verteilungselement (22) umfasst, mittels welchem der dem Verteilungselement (22) zugeführte, gasförmige Kraftstoff auf die jeweiligen Injektorelemente (18) verteilbar ist, wobei wenigstens ein Ventilelement (46) vorgesehen ist, welches in einem korrespondierenden Leitungselement (24) zum Führen des gasförmigen Kraftstoffs vom Verteilungselement (22) zu wenigstens einem der Injektorelemente (18) angeordnet ist und mittels welchem das korrespondierende Leitungselement (24) fluidisch versperrbar ist.
Abstract:
This invention relates to a method of supplying fuel to a vehicle engine (32). The method includes the steps of electrolytically generating hydrogen in an electrolytic cell (12) containing an electrolyte and two spaced apart electrodes (24) on board the vehicle (30), and feeding the hydrogen to the engine (32). The invention extends to an apparatus (10) for supplying fuel to an engine (32), which apparatus (10) includes an electrolytic cell (12), the cell (12) having an outlet (18) which is connectable in flow communication with a fuel intake of the engine (32).
Abstract:
A method is provided for controlling a spark-ignited engine in response to variations in quality of a gaseous fuel provided to the engine. The method comprises receiving a fuel energy value representing a quality of the fuel, determining whether the fuel energy value is sufficiently changed relative to one of an earlier fuel energy value and an expected fuel energy value, responding to a fuel energy value that is sufficiently changed relative to one of an earlier fuel energy value and an expected fuel energy value by accessing control values from a memory, computing adjustment commands for operational components of the engine using the control values, and controlling the operational parameters of the engine using the adjustment commands.
Abstract:
Offenbart wird eine Gemischaufbereitungsvorrichtung (GB) für einen Verbrennungsmotor (VM), mit: - einem Lufteinlass (LE), - einem Gaskraftstoffeinlass (GE), - einem Luftverdichter (LV), - einer Mischkammer (MK), und - einer Gemischabgabe (MA); wobei - der Luftverdichter (LV) stromabwärts des Lufteinlasses (LE) angeordnet ist; - die Mischkammer (MK) sowohl stromabwärts des Luftverdichters (LV) als auch stromabwärts des Gaskraftstoffeinlasses (GE) angeordnet ist; - die Gemischabgabe (MA) stromabwärts der Mischkammer (MK) angeordnet ist.