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Dual-fuel active pre-combustion chamber engine and vehicle

A pre-combustion chamber and engine technology, applied in combustion engines, internal combustion piston engines, engine control, etc., can solve problems such as cold start difficulties, emission deterioration, spark plug carbon deposits, etc.

Active Publication Date: 2021-03-16
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-combustion chamber engine and vehicle
  • Dual-fuel active pre-combustion chamber engine and vehicle
  • Dual-fuel active pre-combustion chamber engine and vehicle

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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

The embodiment of the invention provides a dual-fuel active pre-combustion chamber engine and a vehicle, the engine comprises a main combustion chamber (2) used for main combustion and a pre-combustion chamber (1) arranged in the center of the top of the main combustion chamber (2) and used for pre-combustion, wherein the top of the pre-combustion chamber (1) is provided with a gas nozzle (3) anda pre-combustion spark plug (4), the bottom is provided with uniformly distributed three jet holes (101), the distances among the three jet holes (101) are the same, the orientations are different, the gas nozzle (3) can spray combustible gas into the pre-combustion chamber (1), and the pre-combustion spark plug (4) can ignite the combustible gas in the pre-combustion chamber (1). Due to the factthat dual fuel is arranged, the combustible gas is introduced and directly used as fuel of the pre-combustion chamber (1), the possibility that the pre-combustion spark plug (4) is wetted by gasolinewhich is not fully atomized is avoided, and meanwhile the problems that cold starting is difficult, emission is deteriorated, and carbon is deposited on the spark plug are also solved.

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