Multifunctional instrument for measuring fuel consumption of diesel engine

Abstract

Disclosed is a multifunctional instrument for measuring fuel consumption of diesel engine. Fuel oil enters a main unit from a daily oil cabinet through a first flowmeter; part of the fuel oil entering the main unit returns, as return oil, into an oil incoming pipe of the main unit; another part of the fuel oil is injected into a cylinder of the main unit and burns; the rest becomes leaking oil, leaking to a leaking cabinet through an umbrella unit of a booster pump; a measurement loop of the fuel oil passing through the flowmeters is formed; an FCM10A oil consumption meter receives measurement flow pulse signals of the flowmeters and also receives electrical signals, including power, speed and torque, transmitted by a dynamometer; the flow pulse signals and the electrical signals are transmitted to a computer; the computer calculates the signals in real time through FCM10A software and displays changes in diesel engine fuel consumption and fuel consumption rate in the whole measuring phase; finally, an average fuel consumption rate of the diesel engine in the measurement time is output. The instrument has the advantages that testing of various functions can be implemented, output data is comprehensive, secondary processing is not required, testing is accurate, operations are convenient, and hardware is easy to purchase.

Description

technical field [0001] The invention relates to a detection device for the performance of a diesel engine, in particular to a multifunctional measuring instrument for fuel consumption of a diesel engine, which belongs to the technical field of diesel engines. Background technique [0002] Fuel consumption rate is an economic index of diesel engine, and its value is an important reference benchmark for performance adjustment of diesel engine workshop. The measuring instrument of diesel engine fuel consumption in the prior art, data acquisition is made up of mass flow meter and single-chip microcomputer, and single-chip microcomputer is integrated by CPU and data processing software, belongs to non-standard module; Manually input and measure the current standard power value; the measured output data does not subtract the leakage of the umbrella device of the fuel booster pump, and a second calculation is required. Generally speaking, the existing fuel oil consumption meter al...

AI Technical Summary

Problems solved by technology

[0003] 1) Non-standard data acquisition modules, small hardware output, difficult procurement, and untimely after-sales service;

[0004] 2) The load fluctuation of the main engine has a great influence on the measurement accuracy;

[0005] 3) The leakage of the umbrella device of the fuel booster pump is not calculated during the measurement process, and the measurement output data needs to be calculated twice;

[0006] 4) The measurement mode is fixed, and the single flow meter is switched to the double flow meter mode, which needs to be redesigned;

[0007] 5) The influence of environmental conditions is not considered, the output results need to be post-processed and corrected to ISO conditions

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