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45-degree spraying single-hole spray tube of dual-fuel engine intake duct

A dual-fuel engine and air intake technology, which is applied in the direction of engine components, machines/engines, combustion air/combustion-air treatment, etc., can solve the problem of high total carbon and hydrogen emissions, achieve improved performance, convenient processing, and low cost Effect

Inactive Publication Date: 2015-07-22
JILIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to overcome the problem of high total carbon and hydrogen emissions when the engine is running at a small load and the air is not mixed uniformly, and provides a single-hole nozzle for 45-degree injection in the intake port of a dual-fuel engine

Method used

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  • 45-degree spraying single-hole spray tube of dual-fuel engine intake duct
  • 45-degree spraying single-hole spray tube of dual-fuel engine intake duct
  • 45-degree spraying single-hole spray tube of dual-fuel engine intake duct

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Embodiment Construction

[0026] The present invention is described in detail below in conjunction with accompanying drawing:

[0027] like Figure 1 to Figure 3 , the single-hole nozzle of the dual-fuel engine intake port 45 degree injection of the present invention is the L-shaped natural gas nozzle 1 and is made up of the vertical pipe at the left end, the curved pipe in the middle and the horizontal pipe at the right end.

[0028] The vertical tube at the left end, the curved tube in the middle and the horizontal tube at the right end are connected smoothly, the vertical tube at the left end, the curved tube at the middle end are the same as the horizontal tube at the right end, and the vertical tube at the left end, the curved tube at the middle end are the same as the horizontal tube at the right end. , the axis of rotation of the vertical tube at the left end and the horizontal tube at the right end perpendicularly intersect; the L-shaped natural gas nozzle 1 can be made of a general-purpose tub...

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Abstract

The invention discloses a 45-degree spraying single-hole spray tube of a dual-fuel engine intake duct. The 45-degree spraying single-hole spray tube of the dual-fuel engine intake duct aims at solving the problem that total carbon-hydrogen discharge amount is large when an engine operates in a small-load mode and fuel and air mixing is uneven and is an L-shaped natural gas spray pipe (1) consisting of a vertical left-end pipe and a horizontal right-end pipe. The vertical left-end pipe and the horizontal right-end pipe are smoothly connected to form a whole and are equal in inner diameter and outer diameter, and rotating axes of the vertical left-end pipe and the horizontal right-end pipe are vertically intersected. The horizontal right-end pipe is formed by welding a horizontal right-end pipe body and a round flat plate type spray pipe outlet oblique retaining wall (5). The diameter of the spray pipe outlet oblique retaining wall (5) is equal to the outer diameter of the horizontal right-end pipe body. The upper half portion of the spray pipe outlet oblique retaining wall (5) is machined into an oblique plane forming a 45-degree angle with the rotating axis of the horizontal right-end pipe body, and a spray pipe outlet (3) communicated with an inner hole formed in the horizontal right-end pipe body is formed in the central position of the oblique plane through machining.

Description

technical field [0001] The invention relates to a nozzle belonging to the technical field of dual-fuel engine injection, more precisely, the invention relates to a single-hole nozzle for 45-degree injection in the intake port of a dual-fuel engine. Background technique [0002] With the global consumption of petroleum energy, natural gas is increasingly favored by major automakers. The conversion of heavy-duty diesel engines to natural gas / diesel dual-fuel engines can greatly reduce the emission of soot, which can not only alleviate the problem of diesel consumption, but also reduce the problem of high particulate emissions from diesel engines. At present, natural gas / diesel dual-fuel engines generally use multi-point injection in the intake port for intake air, and the natural gas nozzles currently used are injected along the direction of the air channel axis. The research results show that natural gas / diesel dual-fuel Multi-point ignition, the current type of nozzle will ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104
Inventor 王忠恕尤金文王建堃刘忠长许允
Owner JILIN UNIV
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