Nozzle structure for multi-point injection of heavy methanol engine

A methanol engine and engine cylinder technology, which is applied to engine components, machines/engines, fuel injection devices, etc., can solve the problems of difficult development of large flow nozzles, insufficient control accuracy of small flow, low combustion efficiency, etc., to improve control accuracy. and combustion efficiency, improve atomization effect, and reduce energy consumption

Inactive Publication Date: 2018-08-28
GUANGXI YUCHAI MASCH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methanol engines are generally equipped with one methanol nozzle per cylinder. In order to meet the power requirements of heavy-duty engines, nozzles with larger flow rates need to be used. However, large flow nozzles have difficulties in development, high technical costs, insufficient control accuracy of small flow rates, and low combustion efficiency. shortcoming

Method used

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  • Nozzle structure for multi-point injection of heavy methanol engine
  • Nozzle structure for multi-point injection of heavy methanol engine
  • Nozzle structure for multi-point injection of heavy methanol engine

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the specific embodiments in the accompanying drawings.

[0023] refer to Figure 1-3 As shown, a heavy-duty methanol engine multi-point injection nozzle structure of the present invention includes a common rail pipe 1 for splitting methanol, and multiple groups of nozzles whose number is consistent with the number of engine cylinders 2 are arranged on the common rail pipe 1 Assembly 3, that is, each cylinder of the engine corresponds to a group of nozzle assemblies 3, and each group of nozzle assemblies 3 includes at least two nozzles 31 that communicate the common rail pipe 1 with the engine cylinder 2, that is, at least two nozzles are correspondingly arranged on each cylinder 31. The same flow rate is split and injected by at least two nozzles 31, which reduces the methanol flow rate of a single nozzle 31, and each nozzle 31 is arranged obliquely toward the side wall of the engine cylinder 2, c...

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Abstract

The invention discloses a nozzle structure for multi-point injection of a heavy methanol engine. The nozzle structure comprises a common rail tube, wherein groups of nozzle assemblies equal to air cylinders of the engine in quantity are arranged on the common rail tube; each of the nozzle assemblies comprises at least two nozzles communicating the common rail tube to the air cylinder of the engine, and each of the nozzles is obliquely arranged toward the side wall of the air cylinder of the engine. The invention provides the nozzle structure for multi-point injection of the heavy methanol engine compact in structure and reasonable in design. By changing the quantity and injection directions of the nozzles, the demand, on single nozzle flow, of the engine is reduced, the control precision and the combustion efficiency of a methanol injection flow are improved, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to the technical field of engine manufacturing, more specifically, it relates to a nozzle structure for multi-point injection of a heavy-duty methanol engine. Background technique [0002] As a renewable vehicle fuel, methanol has a good development prospect. Most of the methanol engines at this stage are modified from diesel or natural gas engines. Due to the low calorific value of methanol fuel, in order to achieve the same power, the methanol consumption of the engine is much higher than that of diesel or natural gas. The methanol engine has higher requirements for fuel nozzles. Existing methanol engines are generally equipped with one methanol nozzle per cylinder. In order to meet the power requirements of heavy-duty engines, nozzles with larger flow rates need to be used. However, large flow nozzles have difficulties in development, high technical costs, insufficient control accuracy of small flow rates, and low combustion ef...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M55/02F02M61/14
Inventor 杨葵朱赞田战胜
Owner GUANGXI YUCHAI MASCH CO LTD
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