Regionalization and leveling lean combustion engine control method

A lean combustion and control method technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve the problems of high fuel consumption, increased pumping loss, increased pumping loss, etc., to improve the thermal power conversion rate , Reduce pump air loss, reduce the effect of pump air loss

A lean combustion and control method technology, applied in engine control, combustion engine, internal combustion piston engine, etc., can solve the problems of high fuel consumption, increased pumping loss, increased pumping loss, etc., to improve the thermal power conversion rate , Reduce pump air loss, reduce the effect of pump air loss

CN104533642AActive Publication Date: 2015-04-22广州强劲航空科技有限公司
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  • Regionalization and leveling lean combustion engine control method
  • Regionalization and leveling lean combustion engine control method
  • Regionalization and leveling lean combustion engine control method

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Embodiment Construction

[0032] In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments, which are only used to explain the present invention and do not limit the protection scope of the present invention.

[0033] Such as Figure 5 As shown, a method for controlling a partitioned and stratified lean-burn engine includes at least the following steps: the first step is to divide the cylinder into at least two combustion zones, and the size of each combustion zone is different, so that the engine can realize zoned combustion ;

[0034] In the second step, a spark plug, an exhaust pipe and an intake pipe are connected on the cylinder head corresponding to the cylinder of each combustion chamber, and a cylinder pipe divider plate is arranged in each intake pipe, and the intake pipe, especially A section of the intake pipe close to the cylinder is divided into two large and small inta...

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Abstract

The invention discloses a regionalization and leveling lean combustion engine control method. According to the method, an air inlet conversion valve I, an air inlet conversion valve II, an oil sprayer I and an oil sprayer II are connected on an electronic control unit respectively. A combustion chamber is divided into a small combustion region and a large combustion region. A cylinder air inlet tube is connected onto the large combustion region and the small combustion region respectively, a cylinder air inlet tube channel dividing plate is arranged in each cylinder air inlet tube, and each cylinder air inlet tube is divided into a large air inlet channel and a small air inlet channel. By the aid of the method, the engine regionalization and leveling combustion is achieved, the engine inner combustion oil combustion efficiency is improved, exhaust waste and oil consumption of the engine are reduced, the engine can be used safely during large loads, and accordingly, the environment-friendly performance of automobiles during traveling is improved, and the usage cost is reduced.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a method for controlling a partitioned and stratified lean combustion engine. Background technique [0002] At present, the most widely used automobile engine is the reciprocating piston engine, which achieves fuel economy through turbocharging at high speed and heavy load, but fails to achieve fuel economy at idle speed and light load, so it is used in the market. The fuel consumption is obviously too high when driving at low speed in the area. [0003] The reasons are as follows: (1) When the throttle valve is completely closed at idle speed, only a small amount of air enters the cylinder through the idle passage of the throttle valve, so that a large vacuum is formed when the air is inhaled, which will inevitably reduce the energy consumed by the intake air. increase, increasing the pumping loss; at the same time, because the vacuum degree of the intake pipe is very large at ...

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Application Information

Patent Timeline
22 Apr 2015
Publication
CN104533642A
IPC
F02D41/00; F02B23/08; F02F1/18; F02M35/104; F02M25/07; F02D21/08; F02M26/09; F02M26/20; F02M26/21; F02M26/37; F02M26/42
CPC
Y02T10/12
Inventors
汪辉