초록 ▼

A control box (11) for a dual-fuel internal-combustion engine (6) is actuated automatically by an oil-pressure switch (16) when activated by a manual switch (30) that directs power from a battery (29) or other engine-electrical component to a current distributor such as a 24-volt bus (49) for operat

A control box (11) for a dual-fuel internal-combustion engine (6) is actuated automatically by an oil-pressure switch (16) when activated by a manual switch (30) that directs power from a battery (29) or other engine-electrical component to a current distributor such as a 24-volt bus (49) for operating control-box components that include an under-current sensor (36) for preventing use of gaseous fuel in addition to liquid fuel under no-load and low-load conditions, an over-current sensor (39) for preventing use of gaseous fuel in addition to liquid fuel under excessive-load conditions, an intake-air sensor (17) for preventing use of gaseous fuel with liquid fuel when there is inadequate supply of air, a liquid-fuel-supply sensor (22) for preventing use of gaseous fuel with liquid fuel when there is inadequate supply of liquid fuel, and an exhaust-gas-temperature monitor (23) for shutting down dual-fuel mode when exhaust heat is excessive. Red LED lights (41, 42, 43, 44, 45, 46) warn of system faults. The engine does not shut down when one or more parameters fail. Professional resetting is required in order to alert operators of possible dangers when the system has been shut down from excessive exhaust-gas heat.

대표청구항 ▼

[ What is claimed is:] [1.] A dual-fuel-engine monitoring-and-control system comprising:a liquid-fuel supplier having a liquid-fuel regulator proximate a liquid-fuel conveyance for conveying liquid fuel from a liquid-fuel container to at least one cylinder of an internal-combustion engine;a gaseous-

[ What is claimed is:] [1.] A dual-fuel-engine monitoring-and-control system comprising:a liquid-fuel supplier having a liquid-fuel regulator proximate a liquid-fuel conveyance for conveying liquid fuel from a liquid-fuel container to at least one cylinder of an internal-combustion engine;a gaseous-fuel supplier having a gaseous-fuel regulator proximate a gaseous-fuel conveyance for conveying gaseous fuel from a gaseous-fuel container to the cylinder of the internal-combustion engine;a control box having electrically powered control of the gaseous-fuel regulator and the liquid-fuel regulator selectively;an oil-pressure switch for regulatory switching communication for turning power on and off on the control box;an intake-air sensor for airflow-sensing communication with an intake-air conveyance to the cylinder of the internal-combustion engine;a liquid-fuel sensor for liquid-flow-sensing communication with the liquid-fuel conveyance to the cylinder of the internal-combustion engine;an exhaust-gas-temperature monitor for temperature-sensing communication with an exhaust outlet proximate the cylinder of the internal-combustion engine;the intake-air sensor, the liquid-fuel sensor and the exhaust-gas-temperature monitor being in electrical communication with the control box; anda gaseous-fuel shutoff valve in electrical communication intermediate the control box and the gaseous-fuel supplier.