Injection system for an internal combustion engine
AssigneeAVL Gesellschaft fur Verbrennungskraftmaschinen und Messtechnik m.b.H. Prof. Dr. Dr. h.c. Hans List
InventorHerwig Ofner
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Abstract
In order to increase the safety of an injection system in an internal combustion engine operating on self-igniting liquefied gas as a fuel, especially after the engine has been switched off, the proposal is put forward that at least one pressurized part of the injection system be depressurized by means of a shut-down device, the latter including at least one pressure relief line which is controlled by at least one valve and opens into a tank with a low pressure level.
Claims16
An injection system for an internal combustion engine operating on self-igniting liquefied gas as a fuel, comprising:
- an injection unit per cylinder for direct injection of said fuel into a combustion chamber, and a fuel tank, and a fuel delivery device for drawing said fuel from said fuel tank and delivering it to a injection unit, wherein said fuel tank is configured as a low-pressure storage tank, and wherein at least one pressurized part of said injection system can be depressurized by means of a shut-down device, said shut-down device including at least one pressure relief line which is controlled by at least one valve and leads into a tank of low pressure level.
Dependencies are inferred from the claim text.