A dual-fuel mode display and communication method and system

A dual-fuel mode, communication system technology, used in fuel injection control, combustion engines, internal combustion piston engines, etc., can solve the problems of frequent changes in gas pressure, gas pressure errors, etc. Avoid the effect of gas pressure changes
CN111120098BActive Publication Date: 2020-06-26WEICHAI HEAVY MACHINERY CO LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
WEICHAI HEAVY MACHINERY CO LTD
Publication Date
2020-06-26

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Abstract

The invention discloses a dual-fuel mode display and communication method and system, and relates to the field of dual-fuel engines. Gas monitoring and injection valve actions are separated, monitoring is carried out on whether one engine enters a dual-fuel mode or not, whether an injection valve acts or not, and whether the gas pressure is matched with a preset pressure threshold or not, the simple judgement logic and signal output are adopted, the more accurate running mode of the engine is displayed so that the engine can be controlled more accurately, and especially, gas supply can be started or stopped more accurately; and it is avoided that because the gas pressure changes, the working state of the engine is unstable, and switching between running modes is carried out frequently; andfurthermore, according to the dual-fuel mode display and communication method and system, no hardware alternation is carried out, the cost is low, and the performance of the engine is improved.
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Description

technical field

[0001] The invention relates to the technical field of dual-fuel engines, in particular to a dual-fuel mode display and communication method and system. Background technique

[0002] When our marine dual-fuel engine is actually equipped, it has the real-time display function of diesel mode and dual-fuel mode, but different applications have different requirements for this function. For example: local ship inspection requirements: when the dual-fuel mode is displayed, there must be real gas participating in the combustion; customer requirements: in the dual-fuel mode, the gas injection should not be stopped due to gas pressure changes and errors should be reported, and the dual-fuel mode should be exited; security system requirements: When the engine needs to enter the dual-fuel mode, a signal is sent to the security guard, and the security system then turns on the gas intake.

[0003] There are contradictions among the requirements of the three. For example,...

Claims

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