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Natural gas mixer

A natural gas and mixer technology, which is applied in the direction of machines/engines, oil supply devices, internal combustion piston engines, etc., can solve the problems of poor mixed gas flow, low mixing uniformity, and small space in the pressure stabilizing chamber, etc., to achieve the mixing effect Good, high mixing uniformity, and large space in the stabilizing chamber

Active Publication Date: 2017-02-22
DONGFENG COMML VEHICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the defects and problems existing in the prior art that the space of the plenum chamber is small, the flow of the mixed gas is not smooth, and the uniformity of the mixture is low, and to provide a plenum chamber with a large space and smooth flow of the mixed gas. , Natural gas mixer with high mixing uniformity

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0055] see Figure 1 to Figure 8 , a natural gas mixer, comprising an outer shell 1, an inner cavity 2 and an air cavity 3, the outer shell 1 is provided with a coaxial inner cavity 2, and the inner cavity 2 is provided with an air cavity 3. Both the air cavity body 3 and the inner cavity body 2 communicate with the air intake unit 4 provided on the side wall of the outer casing 1, and the inner cavity body 2 communicates with the air inlet unit 5 arranged on the bottom of the outer casing 1;

[0056] The inner cavity 2 is a hollow waist-shaped body structure, which includes an air inlet part 21, a mixing part 22, and a mixed gas outlet part 23 connected in sequence from bottom to top. The air inlet part 21 is a cone with a narrow top and a wide bottom. Platform structure, the side wall of the mixing part 22 is provided with an inner cavity natural gas injection hole 24 and an inner air cavity connecting hole 25, and the mixed gas outlet 23 is a frustum structure with a narrow...

Embodiment 2

[0058] Basic content is the same as embodiment 1, the difference is:

[0059] The mixed gas outlet portion 23 includes a lower narrow portion 231, a transition portion 232 and an outer wide portion 233, and the mixing portion 22 communicates with the housing gas outlet 11 after passing through the lower narrow portion 231, the transition portion 232, and the outer wide portion 233 in sequence. The transition part 232 is an outwardly expanding circular arc structure extending upward, and the periphery of the outer wide part 233 is in sealing fit with the part near the top of the inner wall of the outer casing 1 .

Embodiment 3

[0061] Basic content is the same as embodiment 1, the difference is:

[0062] The air intake unit 4 includes an air intake joint 41 and an air intake 42 provided on the side wall of the outer casing 1. The air intake joint 41 communicates with the natural gas pressure stabilizing chamber 26 after the air intake 42, and the air intake 42 is set lower than the junction of the air intake part 21 and the mixing part 22. The air inlet unit 5 includes a coaxial upper air inlet part 51 and a lower air inlet part 52. The air inlet part 21 communicates with the housing air inlet 12 after passing through the upper air inlet part 51 and the lower air inlet part 52 in sequence. The air part 51 is a cylindrical structure, and the lower air inlet part 52 is a truncated cone structure with a narrow top and a wide bottom.

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Abstract

The invention relates to a natural gas mixer which comprises an outer shell, an inner chamber and a gas chamber, wherein the inner chamber is coaxially arranged in the outer shell; the gas chamber is arranged in the inner chamber; the inner chamber has a hollow waist-shaped structure; the inner chamber comprises an air inlet part, a mixing part, a mixed gas outlet part which are successively communicated with each other from bottom to top; a natural gas pressure-stabilizing chamber is encircled by the air inlet part, the mixing part, the mixed gas outlet part and the inner wall of the outer shell; the gas chamber comprises a connecting plate and a gas chamber gas-inlet pipe corresponding to the plate; the outer end of the gas chamber gas-inlet pipe penetrates through a connecting hole of the gas chamber and then extends into the natural gas pressure-stabilizing chamber; a cross section of the gas chamber gas-inlet pipe has a water drop shaped structure with wide top and narrow bottom; an anti-tailing structure is arranged an upper arc part of the outer end. The natural gas mixer has the advantages of larger space of the pressure-stabilizing chamber, smooth mixed gas flow, high mixing uniformity, better mixing effect and higher stability.

Description

technical field [0001] The invention relates to a natural gas engine facility, in particular to a natural gas mixer, which is particularly suitable for increasing the space of a pressure stabilizing chamber, ensuring smooth flow of mixed gas, and improving mixing uniformity and mixing effect. Background technique [0002] The shortage of resources and environmental pollution make the country give strong support to the development of new energy power. As a clean energy, natural gas has been widely used in automobile, engineering and other industries. According to market research data, the market demand for natural gas engines is huge, coupled with the country's subsidy policy for new energy vehicles, people are more fond of new energy vehicles. Considering the long-term development, major car companies have increased their investment and increased their technical reserves for new energy vehicles. After years of hard work, natural gas engines have gradually matured and their ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/04
CPCF02M21/04F02M21/042Y02T10/30
Inventor 贾李水顾善愚吴娟娟孙玉涛王建华
Owner DONGFENG COMML VEHICLE CO LTD
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