Machine external apparatus for maintaining multi-cylinder engine high-efficiency operation

Abstract

The invention provides an off-machine device for maintaining efficient operation of multi-cylinder engines, which belongs to the engine field and is used for overcoming the defect that the multi-cylinder engines are low in working mechanical efficiency in low power state. The off-machine device consists of a fuel or gas control mechanism, an air pressure control mechanism, as well as a fixing frame which carries the fuel or gas control mechanism and the air pressure control mechanism. After the off-machine device is arranged on a corresponding multi-cylinder engine, the operation of increasing or decreasing the number of working cylinders can be accomplished during the operation of the engine, so as to allow the engine to operate with high mechanical efficiency, thereby achieving the aimsof saving energy and reducing emission. Moreover, as the off-machine device does not need to change an internal structure and parameters of the corresponding engine, the off-machine device not only can be applied to produce new engines, but also is suitable for reforming old engines of users in active service on a large scale, thereby having great economic benefit, social benefit and environmental benefit.

Description

(1) Technical field: [0001] An external device for maintaining high-efficiency operation of a multi-cylinder engine can increase or decrease the number of working cylinders when the engine is running, and belongs to the technical field of engines. (two) background technology: [0002] When the engine of the prior art does work, it needs to compress the air or the mixed gas through the piston, and the compressed air or the mixed gas needs to consume a considerable amount of work of the engine. No matter how much work is done in each working cycle of the engine, this extra work value does not change much. Therefore, the more work done in each working cycle, the higher the mechanical efficiency. Therefore, in order to save energy, a relatively large power must be output. But in many cases, the engine only needs to output a small power. For example, when the car is going downhill, lightly loaded, and the speed is limited, the engine output medium power will lead to speeding, ac...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an external device that can determine the number of working cylinders of a multi-cylinder engine according to the power required by the outside world, so as to solve the problem of low mechanical efficiency of the multi-cylinder engine when it is running at low power. The size of the required power determines the number of cylinders involved in the work. When it is necessary to work in a low-power state, stop fuel supply and decompress some cylinders to stop them from working, and only make some cylinders work, so that the mechanical efficiency can be maintained at a high level. , to achieve the purpose of energy saving and emission reduction

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