Abstract: The fuel cell system includes a fuel cell, a first injection device associated with a supply of a fuel to the fuel cell, and a second injection device provided on an upstream side of the first injection device in a fuel flow passage from a fuel storage unit to the first injection device. The first and second injection devices switch a flow passage extending downstream from the fuel flow passage, between a first flow passage via the first injection device and second flow passage via the second injection device. The second injection device operates at a lower frequency than the first injection device during an operation of the fuel system.

Abstract: A method for controlling a catalytic combustion apparatus having a heater capable of heating fuel to be supplied to a catalyst includes a step of supplying oxidant gas to the catalytic combustion apparatus, and an injection step of injecting the fuel into the catalytic combustion apparatus. The injection step also includes an electric power feeding step of supplying electric power to the heater, and a setting step of setting an injection amount of the fuel to be injected into the catalytic combustion apparatus in response to output of the heater.

Abstract: The invention relates to a fuel cell system (100) having a fuel supply unit (8) and fuel cells (1, 2) having a cathode (4, 4?) and an anode (3, 3?), wherein the cathode (4, 4?) features a cathode feed line (40), the anode (3, 3?) features an anode feed line (30), and the flow in the anode (3, 3?) is connected with the flow in the fuel supply unit (8) via the anode feed line (30), in which a reforming apparatus (13) is arranged, and having an anode exhaust line (6) provided with at least one burner apparatus (22, 23).

Abstract: A method for controlling a catalytic combustion apparatus having a heater capable of heating fuel to be supplied to a catalyst includes a step of supplying oxidant gas to the catalytic combustion apparatus, and an injection step of injecting the fuel into the catalytic combustion apparatus. The injection step also includes an electric power feeding step of supplying electric power to the heater, and a setting step of setting an injection amount of the fuel to be injected into the catalytic combustion apparatus in response to output of the heater.

Abstract: The fuel cell system includes a fuel cell, a first injection device associated with a supply of a fuel to the fuel cell, and a second injection device provided on an upstream side of the first injection device in a fuel flow passage from a fuel storage unit to the first injection device. The first and second injection devices switch a flow passage extending downstream from the fuel flow passage, between a first flow passage via the first injection device and second flow passage via the second injection device. The second injection device operates at a lower frequency than the first injection device during an operation of the fuel system.

Abstract: The invention relates to a fuel cell system (100) having a fuel supply unit (8) and fuel cells (1, 2) having a cathode (4, 4?) and an anode (3, 3?), wherein the cathode (4, 4?) features a cathode feed line (40), the anode (3, 3?) features an anode feed line (30), and the flow in the anode (3, 3?) is connected with the flow in the fuel supply unit (8) via the anode feed line (30), in which a reforming apparatus (13) is arranged, and having an anode exhaust line (6) provided with at least one burner apparatus (22, 23).

Abstract: An internal combustion engine comprises a port injection injector for injecting fuel into an intake port and a direct injection injector for injecting fuel into a combustion chamber. A controller causes the port injection injector and the direct injection injector to inject fuel on the basis of a running condition of the internal combustion engine. Further, the controller increases an injection amount of the direct injection injector above a normal injection amount of the direct injection injector when the internal combustion engine decelerates, thereby reducing the fuel pressure of the direct injection injector rapidly.

Abstract: An internal combustion engine comprises a port injection injector for injecting fuel into an intake port and a direct injection injector for injecting fuel into a combustion chamber. A controller causes the port injection injector and the direct injection injector to inject fuel on the basis of a running condition of the internal combustion engine. Further, the controller increases an injection amount of the direct injection injector above a normal injection amount of the direct injection injector when the internal combustion engine decelerates, thereby reducing the fuel pressure of the direct injection injector rapidly.

Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.

Abstract: Internal combustion engine has direct injection fuel injection valve and port injection fuel injection valve. A requested fuel injection amount is calculated according to an engine operation condition. When the requested fuel injection amount is in first operation region in which the minimum fuel injection amount of direct injection fuel injection valve is exceeded, a direct injection fuel injection valve fuel injection amount is adjusted based on the requested fuel injection amount and a fixed amount, while maintaining a port injection fuel injection valve fuel injection amount at the fixed amount. First operation region is at least a region in which the requested fuel injection amount exceeds the direct injection fuel injection valve minimum fuel injection amount. In first operation region, the port injection fuel injection valve fuel injection amount is fixed at the minimum fuel injection amount of port injection fuel injection valve.

Abstract: A control device for an internal combustion engine including a variable compression ratio mechanism arranged to vary a relative position relationship between a piston and a cylinder, and thereby to vary a mechanical compression ratio, and a fuel injection valve arranged to directly inject a fuel within a combustion chamber, the control device includes: at least in an engine high load region including a full open, the compression ratio at an exhaust upper dead center being controlled to a low compression ratio, a fuel injection start timing of the fuel in which an air-fuel mixture is formed within the combustion chamber, and which is ignited by an ignition plug being set before an exhaust upper dead center so that a fuel injection period crosses an upper dead center.

Abstract: A control device for an internal combustion engine which includes one of the port injection fuel injection valve and the cylinder injection fuel injection valve that serves as a main fuel injection valve, the other of the fuel injection valves that serves as an auxiliary fuel injection valve arranged to be auxiliarily operated in a specified engine driving condition, and which is configured to perform a switching of an injection and a stop of the auxiliary fuel injection valve in accordance with an engine driving condition, the control device includes: the control device being configured to switch the injection and the stop of the auxiliary fuel injection valve in a state where an air-fuel ratio by an injection amount of the fuel by the main fuel injection valve is thicker than a stoichiometric air-fuel ratio.

Abstract: A control device for an internal combustion engine provided with an evaporated fuel processing device arranged to temporarily store an evaporated fuel generated in a fuel tank, to purge the evaporated fuel during drive of the engine, and to introduce the evaporated fuel to an intake system, and a variable compression ratio mechanism arranged to vary a mechanical compression ratio, the control device includes: a section configured to sense a state in which the evaporated fuel is accumulated in the evaporated fuel processing device, during a drive of the engine after a warming-up of the internal combustion engine is finished, the control device being arranged to purge the evaporated fuel by decreasing the mechanical compression ratio by the variable compression ratio mechanism when it is sensed that the evaporated fuel is accumulated.

Abstract: A control device for an internal combustion engine which includes a variable compression ratio mechanism arranged to vary a mechanical compression ratio, and a high pressure fuel pump arranged to supply a high pressure fuel to a common rail, and to be driven from a crank shaft through a chain, the control device includes: a fuel pressure abnormal state sensing section configured to sense an abnormal increase of a fuel pressure within the common rail, the control device being configured to decrease the compression ratio in the abnormal state of the fuel pressure.

Abstract: A control device for an internal combustion engine which includes one of the port injection fuel injection valve and the cylinder injection fuel injection valve that serves as a main fuel injection valve, the other of the fuel injection valves that serves as an auxiliary fuel injection valve arranged to be auxiliarily operated in a specified engine driving condition, and which is configured to perform a switching of an injection and a stop of the auxiliary fuel injection valve in accordance with an engine driving condition, the control device includes: the control device being configured to switch the injection and the stop of the auxiliary fuel injection valve in a state where an air-fuel ratio by an injection amount of the fuel by the main fuel injection valve is thicker than a stoichiometric air-fuel ratio.

Abstract: A control device for an internal combustion engine including a variable compression ratio mechanism arranged to vary a relative position relationship between a piston and a cylinder, and thereby to vary a mechanical compression ratio, and a fuel injection valve arranged to directly inject a fuel within a combustion chamber, the control device includes: at least in an engine high load region including a full open, the compression ratio at an exhaust upper dead center being controlled to a low compression ratio, a fuel injection start timing of the fuel in which an air-fuel mixture is formed within the combustion chamber, and which is ignited by an ignition plug being set before an exhaust upper dead center so that a fuel injection period crosses an upper dead center.

Abstract: A control device for an internal combustion engine provided with an evaporated fuel processing device arranged to temporarily store an evaporated fuel generated in a fuel tank, to purge the evaporated fuel during drive of the engine, and to introduce the evaporated fuel to an intake system, and a variable compression ratio mechanism arranged to vary a mechanical compression ratio, the control device includes: a section configured to sense a state in which the evaporated fuel is accumulated in the evaporated fuel processing device, during a drive of the engine after a warming-up of the internal combustion engine is finished, the control device being arranged to purge the evaporated fuel by decreasing the mechanical compression ratio by the variable compression ratio mechanism when it is sensed that the evaporated fuel is accumulated.

Abstract: A control device for an internal combustion engine which includes a variable compression ratio mechanism arranged to vary a mechanical compression ratio, and a high pressure fuel pump arranged to supply a high pressure fuel to a common rail, and to be driven from a crank shaft through a chain, the control device includes: a fuel pressure abnormal state sensing section configured to sense an abnormal increase of a fuel pressure within the common rail, the control device being configured to decrease the compression ratio in the abnormal state of the fuel pressure.