Variable stroke engine and working method thereof

A working method and engine technology, applied in the direction of engine control, machine/engine, mechanical equipment, etc., can solve problems such as unqualified and obstacles to put into practice

Inactive Publication Date: 2006-02-22
清华大学苏州汽车研究院(吴江) +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It should be pointed out that this second scheme achieves different cycle patterns on the same cylinder, so there is a time when the two-stroke machine works alone. substandard issues will seriously hinder the implementation of such programs

Method used

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  • Variable stroke engine and working method thereof
  • Variable stroke engine and working method thereof
  • Variable stroke engine and working method thereof

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Embodiment Construction

[0052] The specific implementation manners of the present invention will be described below in conjunction with the accompanying drawings.

[0053] figure 1 It is the basic pipeline and air valve diagram of the present invention. figure 1 1 is the two-stroke intake pipe, which obtains the fresh air blown into the cylinder from the intake pump of the exhaust gas turbocharger, and guides it to the two two-stroke cylinders. attached figure 2 Exhaust from the two-stroke exhaust duct (20) shown first enters a unified mixing chamber ( figure 2 in (10)), and then through the EGR distribution valve ( figure 2 In (11)), part of the distribution enters the power input end of the exhaust gas turbocharger ( figure 2 (22)) to drive the turbine, and the other part enters the intake air of the four-stroke cylinder to participate in the combustion in the cylinder, so as to realize the exhaust gas recirculation and the improvement of the emission condition of the two-stroke cylinder. f...

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Abstract

This invention relates to a variable stroke engine, in addition to its working method, which belongs to vehicle engine technique field. The engine comprises six cylinders, EGR, exhaust-gas turbocharger system, four strokes discharge distributing valve, exhaust duct, bent axle piston and electrical controlling unit. when working, it needs to decide whether the two stroke cylinders join to work with the jar cutting technique according to different power, making the engine switch in different working condition; the six cylinders will bedding-in work through each inlet distribution valve to increase pressure and power output. Said invention can be used in transporting vehicle such as tank armored vehicle, machineshop truck needs to provide large power output and so on.

Description

technical field [0001] The invention relates to a variable-stroke engine and a working method thereof, belonging to the technical field of vehicle engines in the direction of mechanical manufacturing in power engineering and engineering thermophysics. Background technique [0002] Common internal combustion engines can be divided into two-stroke internal combustion engines and four-stroke internal combustion engines according to different cycle modes. The two-stroke internal combustion engine piston completes one cycle up and down each time, the upward behavior is the intake compression stroke, and the downward behavior is the power exhaust stroke. The piston of a four-stroke internal combustion engine completes a cycle twice up and down. First, the piston goes down for the intake stroke, then the piston goes up for the compression stroke, then the piston goes down again to complete the power stroke, and finally the piston goes up for the exhaust stroke. Both cycle forms of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02B75/02F02B75/18F02B75/32F02D17/02F02D21/08
Inventor 李哲郭允帅石金
Owner 清华大学苏州汽车研究院(吴江)
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