Diagnostic method of a liquefied natural methane vehicle fuel system of an internal combustion engine operated by computer, the method comprising the following steps: (Step 1) first acquisition of a first methane level value and related timestamp, (Step 2) second acquisition of a second methane…
An engine system includes: a reformer including a catalyst for decomposing fuel into hydrogen and configured to reform the fuel to generate a reformed gas containing the hydrogen; a temperature detection unit configured to detect a temperature of the reformed gas; a rotation fluctuation detection…
An ECU executes a fuel cut-off time ignition process that causes the ignition device to generate a spark discharge during a fuel cut-off for temporarily stopping fuel injection of the fuel injection valve. The ECU determines that the fuel injection valve is stuck open when a rotation fluctuation…
The invention concerns a method of detecting hydrogen leakage from a power plant installation using hydrogen as fuel. A rate of supply of hydrogen to the power plant (“the supply rate”) is determined. A rate of change of mass of hydrogen in the tank arrangement (“the rate of mass change”) is…
The present disclosure relates to a double walled gas valve unit (3) for controlling the gaseous fuel flow in particular within a vessel gas system (1). The gas valve unit (3) comprises a housing (23) providing an outer wall of the double walled gas valve unit (3) and comprising a fuel gas inlet…
The invention relates to a gas supply system (1) for a reciprocating piston internal combustion engine, in particular a longitudinally scavenged two-stroke large diesel engine, wherein the gas supply system (1) comprises a gas inlet valve (2) with a gas inlet nozzle (3), which is configured such…
An object of the present invention is to provide a gas leakage checking device and a method for the same, for checking fuel-gas leakage of safety shutoff valves simply and securely by measuring a pressure in a fuel supply pipe. The gas-leakage checking device 8 includes a first safety shutoff valve…
A valve (142) for a fuel supply system (100) of an internal combustion engine (102) is disclosed. The valve (142) may include a valve housing (150) that defines a channel (164) therethrough. The channel (164) may be in fluid communication with an inert gas supply line (110) at a first end (152) of…
Gas engine arrangement (1) comprising: - a gas engine (3); - a gas rail (9), via which a first gas in the form of fuel gas can be supplied to at least one gas metering device (11) of the gas engine (3); - a gas control section (15), which is configured to supply fuel gas to the gas rail (9) via a…
[Subject] A low-cost and brief method to detect an airtight failure in a working-gas circulating type gas engine with sufficient accuracy and a working-gas circulating type gas engine using the method should be provided. [Means for Solution] In a working-gas circulating type gas engine, an extra…
A method for detecting a leakage in a fuel supply system (10) is disclosed. Local leakage detection in fuel supply systems can be extensive. The disclosed method may facilitate local leakage detection. The method is based on the steps of performing a first pressure measurement concerning the whole…
An apparatus for diagnosing and controlling combustion of an internal combustion engine is provided which makes smooth operation of an engine possible by adjusting the combustion condition at the occurrence of knock, misfire, and flame quenching and also makes it possible to detect the occurrence…
Inside an engine compartment (53) of a vehicle, an ammonia concentration sensor (50) is arranged above a liquid ammonia injector (13) which is attached to an internal combustion engine body (1) and to the rear in a direction of progression of the vehicle. An ammonia concentration which is detected…
An engine fuel feeding device that is small-sized and easy to start. A cutoff valve (17) is disposed upstream from a primary regulator (18) provided to a fuel passage from a fuel feeding source (12) to an engine (14). The cutoff valve (17) is provided integrally with the primary regulator (18)…
An air conditioner having a compressor (16) which is disposed in an outdoor unit (11) and driven by an engine (30), and a fuel supply control device (13, 50A, 50B) for controlling fuel supply to the engine (30) through at least two fuel shut-off valves (33A, 33B), characterized in that the fuel…
In a system for feeding LPG by injection for an internal combustion engine, sensor means (S) are provided for measuring the electrical current absorbed by the electric motor (11a) for driving the feed pump. The operation of said electric motor is interrupted when the measured electrical current…
An apparatus for diagnosing and controlling combustion of an internal combustion engine is provided which makes smooth operation of an engine possible by adjusting the combustion condition at the occurrence of knock, misfire, and flame quenching and also makes it possible to detect the occurrence…