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Test bench for demonstration and simulation verification of multi-cylinder cylinder pressure online monitoring system for marine engines

A technology for marine engines and monitoring systems, applied in engine testing, machine/structural component testing, measuring devices, etc., can solve problems such as time-consuming and labor-intensive, difficult to simulate failure situations, and inability to facilitate monitoring system evaluation, saving development time , the effect of convenient development and debugging

Active Publication Date: 2018-03-16
武汉理航智能船舶科技有限责任公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

This debugging method is time-consuming and labor-intensive, it is not easy to simulate the fault situation, it is not convenient to conduct a comprehensive evaluation of the monitoring system, and it is not convenient for the function demonstration of the monitoring system

Method used

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  • Test bench for demonstration and simulation verification of multi-cylinder cylinder pressure online monitoring system for marine engines

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Embodiment Construction

[0017] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0018] like figure 1 As shown, a test bench for demonstrating and simulating and verifying the multi-cylinder cylinder pressure online monitoring system of a marine engine, the test bench includes a base 1, a motor 10, a camshaft 2, a gear 3 and a cam 4;

[0019] The camshaft 2 is installed on the base 1 through a pair of supporting devices 5, and a bearing 6 is arranged between the camshaft 2 and the supporting devices 5;

[0020] The motor 10 is mounted on one end of the camshaft 2 for driving the camshaft 2 to rotate, wherein the motor is connected to one end of the camshaft through a coupling ...

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Abstract

The invention discloses a test bench for demonstrating and simulating a marine engine multi-cylinder pressure online monitoring system. The test bench comprises a pedestal, a motor, a cam shaft, a gear, and cams. The cam shaft is disposed on the pedestal through a pair of supporting devices. The motor is disposed at one end of the cam shaft. The gear is fixedly disposed at one end of the cam shaft, and an end face of the gear is provided with a positioning pin. The gear and the positioning pin are respectively corresponding to one magneto-electric sensor, and the two magneto-electric sensors are respectively connected with the cylinder pressure online monitoring system. A plurality of cams are fixedly disposed on the cam shaft, wherein the number of the cams is consistent with the number of the engine cylinders. The plurality of cams are arranged in a manner of angular staggering at intervals of engine ignition. The profile line of each cam is consistent with a pressure curve of the interior of the corresponding cylinder. Each cam is corresponding to one displacement sensor, and all displacement sensors are connected with the cylinder pressure online monitoring system through a pre-amplifier. The test bench can simulate the engine cylinder pressure curves under different work conditions, and facilitates the development and debugging of the multi-cylinder pressure online monitoring system.

Description

technical field [0001] The invention belongs to the technical field of marine engine performance monitoring, and relates to a test bench for demonstrating and simulating and verifying a multi-cylinder pressure online monitoring system of a marine engine. Background technique [0002] The engine cylinder pressure indicator diagram is the basic means to describe the engine power performance, and it comprehensively reflects the thermal conversion process of the engine output mechanical work. The essence of measuring the cylinder pressure dynamometer is to measure the signal of the gas pressure in the cylinder changing with time (or crank angle, cylinder volume). The area of ​​the cylinder pressure dynamometer diagram represents the indicated work done by a working cycle in the engine cylinder. The cylinder pressure dynamometer diagram can be used to study the combustion process in the engine cylinder, the combustion heat release rate, the heat transfer process between the gas a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M15/00
CPCG01M15/00
Inventor 余永华张立浩杨建国
Owner 武汉理航智能船舶科技有限责任公司
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