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Dual-fuel active pre-chamber engine and automobile

A technology of pre-combustion chamber and main combustion chamber, applied in combustion engine, internal combustion piston engine, engine control, etc., can solve problems such as cold start difficulty, emission deterioration, spark plug carbon deposition, etc., and achieve the effect of avoiding cold start difficulty

Active Publication Date: 2022-02-01
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This leads to problems such as cold start difficulties, worsening emissions, and carbon deposits in spark plugs.

Method used

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  • Dual-fuel active pre-chamber engine and automobile
  • Dual-fuel active pre-chamber engine and automobile
  • Dual-fuel active pre-chamber engine and automobile

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Embodiment Construction

[0045] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0046] Before further detailed description of the embodiment of the present application, the orientation nouns involved in the embodiment of the present application, such as "top" and "bottom", are only used to clearly describe the dual-fuel active pre-chamber engine of the embodiment of the present application and the structure of the automobile, and do not have the meaning of limiting the protection scope of the present application.

[0047] For traditional gasol...

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Abstract

An embodiment of the present invention provides a dual-fuel active pre-combustion engine and a vehicle. The engine includes a main combustion chamber (2) for main combustion, and is arranged in the center of the top of the main combustion chamber (2) for pre-combustion The pre-combustion chamber (1), the top of the pre-combustion chamber (1) is provided with an air nozzle (3) and a pre-ignition spark plug (4), and the bottom is provided with three jet holes (101) evenly distributed, and the three jet holes ( 101) have the same spacing and different orientations, wherein the nozzle (3) can inject combustible gas into the pre-combustion chamber (1), and the pre-ignition spark plug (4) can inject the combustible gas in the pre-combustion chamber (1) ignite. Due to the dual fuel, the combustible gas is directly used as the fuel of the pre-combustion chamber (1) through the introduction of combustible gas, which avoids the possibility of the pre-ignition spark plug (4) being wetted by gasoline that is not fully atomized, and also avoids Problems such as difficulty in cold start, deterioration of emissions, and carbon deposits in spark plugs have been eliminated.

Description

technical field [0001] The invention relates to the field of high-efficiency gasoline engines, in particular to a dual-fuel active pre-combustion chamber engine and an automobile. Background technique [0002] In order to meet the increasingly stringent emission and fuel consumption regulations, major automobile manufacturers have begun to research high-efficiency gasoline engines, improve engine thermal efficiency, and thereby reduce fuel consumption. Engines using Exhaust Gas Recirculation EGR (Exhaust Gas Re-circulation) technology can have higher thermal efficiency because they can choose a higher compression ratio to achieve lean combustion. [0003] But at the same time, lean combustion may cause ignition difficulties, and setting an active pre-chamber can solve this problem well. The active pre-chamber is arranged inside the main combustion chamber, and an additional set of fuel injectors and spark plugs are arranged in the active pre-chamber. A combustion process i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02D41/00F02B19/12F02B23/08F02D13/02
CPCF02B19/12F02B23/08F02D41/0025F02D13/0203Y02T10/12
Inventor 刘义克刘华龙江涛
Owner CHERY AUTOMOBILE CO LTD
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