A system comprising a refrigeration engine (132) and regulator (250, 350, 450, 550, 650) positioned within a housing (144, 244), the regulator (250, 350, 450, 550, 650) controlling fuel to the engine through a fuel line (354), a lock-off valve connected to the regulator (250, 350, 450, 550, 650) to shut off fuel supply through the regulator (250, 350, 450, 550, 650), a controller operably connected to the lock-off valve and/or the regulator (250, 350, 450, 550, 650), a guide (462, 562) positioned within the housing (144, 244) and proximate to the refrigeration engine (132), the regulator (250, 350, 450, 550, 650), and/or the fuel line (354) to direct gases leaking from the refrigeration engine (132), regulator (250, 350, 450, 550, 650), and/or at least one fuel line (354), and a methane sensor (566, 666A) positioned within the guide (462, 562) to detect the presence of methane within the guide (462, 562) that is directed by the guide (462, 562), the methane sensor (566, 666A) in communication with the controller and configured to transmit a signal to the controller when methane is detected by the methane sensor (566, 666A). The controller performs a safety action when the signal from the methane sensor (566, 666A) is received.

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 determined. The supply rate is compared with the rate of mass change to determine whether leakage is taking place.

A gas fuel supply system for supplying the gas fuel via an opening of an intake supply pipe that is connected to a combustion chamber in an engine operable in each of a gas fuel combustion mode and an oil fuel combustion mode includes: the gas fuel supply valve for regulating an amount of the gas fuel, the gas fuel supply valve having plural gas supply holes, from which the gas fuel is fed in a direction toward the opening when the valve is opened; and an opening regulation valve provided between the gas fuel supply valve and the opening and having an opening hole, an opening area of which can be regulated. The gas fuel supply system is configured that extended axes of all the gas supply holes pass through the fully opened opening hole.

Various methods and systems are provided for a multi-fuel capable engine. The system includes a liquid fuel system to deliver liquid fuel to an engine, a gaseous fuel system to deliver gaseous fuel to the engine, and a control system. The control system can control and test the liquid and gaseous fuel systems.

A transport refrigeration system having: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine through a first fuel line (332); a first shut off valve (450) located within the first fuel line proximate the first fuel tank; a second shut off valve (72) located within the first fuel line proximate the first engine; a sensor system (80) configured to detect at least one of a crash of the transport refrigeration system, a fuel leak in the first fuel line, and an engine stall in the first engine; and a controller (30) configured to close the first shutoff valve and the second shutoff valve when the sensor system detects at least one of a crash of the transport refrigeration system, a fuel leak in the first fuel line, and an engine stall in the first engine.

A method of warming a valve assembly includes receiving an exhaust flow through a first heat exchanger first inlet; heating a coolant received through a first heat exchanger second inlet with the exhaust flow; exhausting the exhaust flow through a first heat exchanger first outlet; and discharging heated coolant through a first heat exchanger second outlet towards a second heat exchanger assembly that is coupled to the valve assembly to heat the valve assembly.

Technologies for combusting hazardous compounds such as chemical warfare agents and related compounds are disclosed. In embodiments, the technologies include systems and methods for combusting such compounds in an internal combustion engine, such as a spark ignition internal combustion engine, a diesel engine, or the like. The technologies described herein further include components for treating an exhaust gas stream produced by combustion of hazardous compounds. In embodiments such components include a scrubber that utilizes a scrubbing media such as soil to removing acid gases from the exhaust stream.

A transport refrigeration system (200) including: a first engine (26) configured to power a refrigeration unit (22); a first fuel tank (330) fluidly connected to the first engine (26) through a first fuel line (332); a first shut off valve (450) located within the first fuel line (332) proximate the first fuel tank (330); a second shut off valve (72) located within the first fuel line (332) proximate the first engine (26); a sensor system (80) configured to detect at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in the first engine (26); and a controller (30) configured to close the first shutoff valve (450) and second shutoff valve (72) when at least one of a crash of the transport refrigeration system (200), a crash of the first fuel tank (330), a fuel leak in the first fuel line (332), and an engine stall in first engine (26) is detected.

A method for estimating damage of a component of an internal combustion engine includes receiving a fuel rate signal indicative of a fuel rate of the internal combustion engine and estimating a temperature value of the component of the internal combustion engine based on at least the received fuel rate signal. The method also includes estimating an incremental amount of damage of the component of the internal combustion engine based on the estimated temperature value of the component of the internal combustion engine, updating a cumulative amount of damage of the component of the internal combustion engine based on the estimated incremental amount of damage, and outputting a notification based on at least the cumulative amount of damage of the component of the internal combustion engine.

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 determined. The supply rate is compared with the rate of mass change to determine whether leakage is taking place.