Safety system for combustion engines using low flashpoint fuels

Abstract

The invention discloses a safety system for a combustion engine utilizing a low flashpoint fuel, the system comprising: a cover arranged to be positioned near the engine to create a low-pressure environment around the engine, the cover configured to generate sufficient low pressure to draw in air from around the engine; an intake conduit connecting the cover to the engine’s air intake, configured to maintain the low-pressure environment and direct the air into the air intake; a fuel sensor arranged to monitor the concentration levels of fuel vapor in the intake air due to low flashpoint fuel leaking from the engine; wherein the fuel sensor is configured to detect when a threshold concentration of fuel vapor in the intake air is exceeded and to trigger a control response to cut off a fuel line supplying the low flashpoint fuel to the engine.