Liquid ammonia supply system of ammonia-mixed diesel engine

Abstract

The invention relates to a liquid ammonia supply system of an ammonia-mixed diesel engine. A liquid ammonia storage device is connected with a liquid ammonia injection device through a connecting pipe and is used for storing liquid ammonia; the liquid ammonia spraying device is respectively connected with the liquid ammonia storage device and the engine cylinder, and is used for spraying the liquid ammonia stored in the liquid ammonia storage device to the engine cylinder; the safety valve is positioned on the connecting pipe between the liquid ammonia storage device and the liquid ammonia injection device and is used for controlling the communication between the liquid ammonia storage device and the liquid ammonia injection device; the signal acquisition device is used for acquiring a pressure signal in the liquid ammonia storage device and an ammonia concentration signal in gas exhausted by the cylinder; and the controller is used for enabling the liquid ammonia injection device to inject liquid ammonia to the air cylinder and enabling the safety valve to be opened and closed according to an ammonia concentration signal and a pressure signal when the engine air cylinder is in an air suction stroke. According to the system, liquid ammonia supply of the ammonia-mixed diesel engine is achieved, and the system is provided with an independent controller, does not communicate with an engine electronic control unit and is high in portability.

Description

technical field [0001] The invention relates to the field of engine fuel supply, in particular to an ammonia-mixed diesel engine liquid ammonia supply system. Background technique [0002] The threat of climate warming to the living system is a common problem faced by all mankind. Against this background, countries around the world have adopted a global agreement to reduce greenhouse gas emissions. Among them, fossil fuels are used as the preferred fuel for engines, and their combustion products will increase carbon emissions. The continuous consumption of fossil energy by traditional fuel engines will not only bring about the problem of energy depletion, but also bring environmental pollution, climate warming, etc. series of global issues. Under the background of advocating carbon peaking, carbon neutrality and developing low-carbon renewable clean energy, new requirements are put forward for the engine industry. [0003] Ammonia is a carbon-free compound whose products a...

AI Technical Summary

Problems solved by technology

At present, there are still unsolved problems about the mixed fuel supply method, the specific problems of ammonia fuel supply, and the timing of fuel injection, and there is no liquid ammonia supply system for ammonia-mixed diesel engines in the prior art.

Images