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Load control method for reducing cylinders of diesel engine

A diesel engine and load technology, applied in engine control, electrical control, fuel injection control, etc., can solve the problems of increased vibration, damage to the force balance of the diesel engine, affecting the combustion of the working cylinder, etc. Effect

Inactive Publication Date: 2015-05-20
海宁鼎丞智能设备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selection of the oil cut-off cylinder is not correct, but the force balance of the diesel engine will be damaged, the vibration will increase, and it will also affect the combustion of the working cylinder

Method used

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  • Load control method for reducing cylinders of diesel engine
  • Load control method for reducing cylinders of diesel engine
  • Load control method for reducing cylinders of diesel engine

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the accompanying drawings.

[0015] Such as figure 1 As shown, the cylinder reduction control load system consists of a diesel engine 1, a working machine 2, a speed measuring photoelectric encoder 3, a torque photoelectric encoder 4, 5, an acceleration sensor 6, a gas distribution mechanism 7, an injection mechanism 8, and a control system 9. The speed measuring photoelectric encoder 3 is installed on the free end of the diesel engine, and 714 holes are unevenly arranged in the circumferential direction of the code disc, wherein holes are punched every 1° around the bottom dead center, and the rest are punched every 0.5°. The 7 holes near the bottom dead center are used to determine the bottom dead center position. At the same time, the photoelectric encoder is used to detect the rotational speed of the diesel engine. Torque photoelectric encoders 4 and 5 are used to detect the torque of the di...

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Abstract

The invention relates to a load control method for reducing cylinders of a diesel engine, which comprises the following steps of: arranging a speed-measuring photoelectric encoder at a free end of the diesel engine, arranging a pair of torsion vibration photoelectric encoders at a load end of the diesel engine, arranging a two-way acceleration transducer nearby an air cylinder blasting pressure generating point of a diesel engine body, stopping the cylinders one by one, recoding torsion vibration data and vibration data, and ensuring a cylinder stopping number under some load according to the principle that the sum between the torsion vibration specific value and the vibration specific value is the minimum, and taking the cylinder stopping number as the basis of cylinders reducing control load when the diesel engine runs. The load control method controls the power output of the diesel engine by a cylinder reducing method, the work cylinder can be kept at the optimum burning status, and the oil consumption of the whole diesel engine is near to the minimum oil consumption, so that the running economical efficiency under the medium and low load can be improved.

Description

technical field [0001] The invention belongs to the technical field of mechatronics, and relates to a method for reducing power output by using a diesel engine deactivation method to adapt to working mechanical loads. Background technique [0002] Reducing the fuel consumption rate is one of the important tasks in the design and research of low-speed diesel engines. Although the minimum fuel consumption rate of a low-speed diesel engine reaches 160-170g / kWh, and its thermal efficiency is close to 50%, its efficiency drops rapidly and its fuel consumption rises as the speed and load change. Therefore, keeping the diesel engine working in the lowest fuel consumption area can effectively improve fuel economy. [0003] In order to keep the low-speed diesel engine working at the lowest fuel consumption point under medium and low loads, the "cylinder reduction" method is used to control the output power of the diesel engine to adapt to the load matching of the working machinery. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D17/02F02D13/06F02D41/04
Inventor 陈国金刘婷婷刘忠民彭章明朱泽飞元广杰苏少辉龚友平
Owner 海宁鼎丞智能设备有限公司
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