CN2053672U - Gas mixer of natural gas automobile engine - Google Patents
Gas mixer of natural gas automobile engine Download PDFInfo
- Publication number
- CN2053672U CN2053672U CN 89213221 CN89213221U CN2053672U CN 2053672 U CN2053672 U CN 2053672U CN 89213221 CN89213221 CN 89213221 CN 89213221 U CN89213221 U CN 89213221U CN 2053672 U CN2053672 U CN 2053672U
- Authority
- CN
- China
- Prior art keywords
- gas
- mixer
- mixer core
- internal channel
- engine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a gas mixer of natural gas automobile engine. The utility model is characterized in that a variable section internal channel mixer core is adopted, a small pore structure is allocated on the minimum section of the mixer core, and an annular space of even air feed structure is equipped with the mixer core and a shell body. The structure can control the natural gas allowance according to the loading and speed of the engine, and the gas is evenly mixed; the simple structure of the utility model can satisfy the needs of the car engine for various operating conditions. The gas mixer matched with the natural gas vehicle engine gas and the accommodator is applied to the CNG automobile or the air bag natural gas vehicle, as well as to the air bag natural gas vehicle alone.
Description
The utility model relates to a kind of motor car engine fuel gas mixer with fuelled with natural gas.
China is because product oil is in short supply, and imbalance between supply and demand is outstanding, so make a kind of approach that motor car engine fuel is the exploitation new energy sources for automobile with rock gas.This technology has just begun to study and test in China, does not reach the practical stage as yet.
Because automobile is to work under the very big situation of working conditions change scope, so require very high to gas-fueled vehicles engine gas supply system, with regard to domestic magazine " automotive engineering " in 1985 the tenth second phase the 6th page disclosed " vaporization mixer ", it can only play the simple channel mixed function, and the air inflow that can not regulate rock gas with the degree of vacuum of engine inlets, combustion gas mixing is abundant inadequately, the air fuel ratio instability, motor is easily flame-out, thereby can not fully satisfy the requirement of each operating mode of motor car engine.With regard to domestic magazine " petroleum machinery " in 1987 the 6th phase the 39 page of disclosed rock gas " gas fuel mixer ", pressure maintenance one timing when gaseous fuel, the sky combustion volume ratio that it can guarantee to form mixed gas is certain, satisfy the requirement of motor, but this mixer structure complexity, custom-designed natural gas engine can only be applicable to, and the gas-fueled vehicles motor of typing automobile repacking can not be applicable to.
The purpose of this utility model is, design and a kind ofly regulate the rock gas delivery volume by engine inlets degree of vacuum, combustion gas mixing is even, simple in structure, satisfy each working condition requirement of motor car engine, and can be applicable to " the gas-fueled vehicles engine gas mixer " of the gas-fueled vehicles motor of typing automobile repacking.
The purpose of this utility model can reach by following description: a kind of gas-fueled vehicles engine gas mixer, formed by mixer core (1) and housing (2) with rock gas intake duct (3), feature of the present utility model is: the internal channel (6) of mixer core (1) is that cross section is by dwindling gradually greatly again by little variable cross section by Zhejiang expansion, be furnished with in the minimum punishment of internal channel (6) cross section of mixer core (1) and be no less than 3 small through hole (5), the annular space (4) of formation communicates with the internal channel (6) of mixer core (1) by small through hole (5) between mixer core (1) and the housing (2).
Internal channel (6) longitudinal section of the mixer core in the utility model (1) can make cross section pursue Zhejiang with camber line to dwindle.
The minimum sectional area of the internal channel (6) of mixer core of the present utility model (1) can be 0.7～1.2 times of the automobile carburetor trunnion minimum sectional area that matches.
The utility model is installed between air filter for automobile and the Carburetor, and rock gas intake duct (3) links with " natural gas automobile fuel gas regulator " steam outlet pipe or airbag natural gas tube.Because the internal channel (6) of mixer core (1) is a variable cross section, when engine running, locate to produce bigger degree of vacuum at small through hole (5), this degree of vacuum can be controlled the rock gas delivery volume of " natural gas automobile fuel gas regulator " by annular space (6) and rock gas intake duct (3) or directly control the delivery volume of airbag rock gas, because the degree of vacuum that small through hole (5) is located changes with engine load and rotating speed, thereby the rock gas delivery volume can satisfy the requirement of the load and the rotating speed of motor, air fuel ratio is stable, and motor is difficult for flame-out.Rock gas is by aperture and air mixing along internal channel (6) cross-sectional distribution, and combustion gas mixing is even.Mixer core (1) internal channel (6) longitudinal section makes endoporus pursue Zhejiang by camber line to dwindle, and the airflow inlet resistance is little.The minimum sectional area of mixer core (1) internal channel (6) is 0.7～1.2 times of automobile carburetor trunnion minimum sectional area of matching, and has guaranteed the volumetric efficiency and the power performance of motor.
The utility model disclosed with " automotive engineering " " gasification mixer " is compared following advantage: 1. because mixer core (1) internal channel (6) is a variable cross section, the degree of vacuum that minimum place produces in the cross section is bigger, thereby can regulate the rock gas air inflow by the degree of vacuum of engine inlets, make air fuel ratio stable, motor is difficult for flame-out; 2. rock gas small through hole (5) distributes on every side along internal channel (6) cross section, and by the even air feed of ring-like empty face, combustion gas mixing is even.Comparing with " petroleum machinery " disclosed " gas fuel mixer " has following advantage: 1. simple in structure; 2. " gas fuel mixer " can only be used on the special natural gas engine, and the utility model can be used for finalizing the design on the various gas-fueled vehicles motors of automobile repacking.
The utility model is described in further detail below in conjunction with (accompanying drawing) embodiment:
The explanation of each sequence number in the accompanying drawing
1. mixer core; 2. housing; 3. rock gas intake duct; 4. annular space; 5. small through hole; 6. internal channel.
A kind of gas-fueled vehicles engine gas mixer of describing in the accompanying drawing is made up of mixer core (1) and housing (2) with rock gas intake duct (3).Mixer core (1) is a solid of rotation, its internal channel (6) longitudinal section makes endoporus pursue Zhejiang by a garden camber line to dwindle, make endoporus pursue Zhejiang by a straight line and enlarge, minimum place, aperture is distribution 8 small through hole (5) evenly, and internal channel (6) minimum sectional area is 0.8 times of carburetor throat minimum sectional area.Mixer core (1) and housing close-fitting, form an annular space (4) between the two, rock gas enters internal channel (6) by intake duct (3) through annular space (4), small through hole (5), and the housing upper and lower end has seam, can match with air-strainer and Carburetor respectively.
This mixer is installed between air filter for automobile and the Carburetor, and internal channel (6) is the component part of engine inlets, and rock gas intake duct (3) links with flexible pipe with " natural gas automobile fuel gas regulator " steam outlet pipe.When engine running, locate and to produce bigger degree of vacuum at small through hole (5), this degree of vacuum can be controlled the rock gas delivery volume of " natural gas automobile fuel gas regulator ", because degree of vacuum herein changes with engine load and rotating speed, thereby the rock gas delivery volume can satisfy the requirement of engine load and rotating speed, air fuel ratio is stable, and motor is difficult for flame-out.Rock gas is by uniform aperture and air mixing more than 3, and combustion gas mixing is even.Mixer core (1) internal channel (6) longitudinal section makes endoporus pursue Zhejiang by the garden camber line to dwindle, and the airflow inlet resistance is little.The value of internal channel (6) minimum sectional area be the carburetor throat minimum sectional area 0.7～1.2 between, can guarantee engine power performance.Above structure and principle can satisfy each working condition requirement of gas-fueled vehicles motor.
Claims (3)
1, a kind of gas-fueled vehicles engine gas mixer, formed by mixer core [1] and housing [2] with rock gas intake duct [3], feature of the present utility model is: the internal channel [6] of mixer core [1] is that cross section is by dwindling gradually greatly again by the little variable cross section that enlarges gradually, be furnished with in the minimum punishment of internal channel [6] cross section of mixer core [1] and be no less than 3 small through hole [5], the annular space [4] of formation communicates with the internal channel [6] of mixer core [1] by small through hole [5] between mixer core [1] and the housing [2].
2, by the described gas-fueled vehicles engine agitator of claim 1, it is characterized in that internal channel (6) longitudinal section of mixer core (1) dwindles cross section with camber line gradually.
3, by claim 1 or 2 described gas-fueled vehicles engine gas mixers, the minimum sectional area that it is characterized in that mixer core (1) internal channel (6) is 0.7～1.2 times of automobile carburetor trunnion minimum sectional area of matching.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213221 CN2053672U (en) | 1989-09-28 | 1989-09-28 | Gas mixer of natural gas automobile engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89213221 CN2053672U (en) | 1989-09-28 | 1989-09-28 | Gas mixer of natural gas automobile engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2053672U true CN2053672U (en) | 1990-02-28 |
Family
ID=4869264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89213221 Expired - Lifetime CN2053672U (en) | 1989-09-28 | 1989-09-28 | Gas mixer of natural gas automobile engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2053672U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430591C (en) * | 2005-12-15 | 2008-11-05 | 东风南充汽车有限公司 | Supercharging engine with gas as single fuel |
| CN104018956A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工程大学 | Multi-point injection gas/dual-fuel engine fuel gas and air premixing device |
| CN104121116A (en) * | 2014-07-23 | 2014-10-29 | 山东大学 | Fuel gas injecting and mixing device applied to multi-point injection fuel gas engine |
| CN105179111A (en) * | 2015-09-09 | 2015-12-23 | 哈尔滨工程大学 | Gas/dual-fuel engine intake manifold gas injection device |
| CN106438115A (en) * | 2016-11-30 | 2017-02-22 | 东风商用车有限公司 | Natural gas mixer |
-
1989
- 1989-09-28 CN CN 89213221 patent/CN2053672U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430591C (en) * | 2005-12-15 | 2008-11-05 | 东风南充汽车有限公司 | Supercharging engine with gas as single fuel |
| CN104018956A (en) * | 2014-06-17 | 2014-09-03 | 哈尔滨工程大学 | Multi-point injection gas/dual-fuel engine fuel gas and air premixing device |
| CN104121116A (en) * | 2014-07-23 | 2014-10-29 | 山东大学 | Fuel gas injecting and mixing device applied to multi-point injection fuel gas engine |
| CN105179111A (en) * | 2015-09-09 | 2015-12-23 | 哈尔滨工程大学 | Gas/dual-fuel engine intake manifold gas injection device |
| CN106438115A (en) * | 2016-11-30 | 2017-02-22 | 东风商用车有限公司 | Natural gas mixer |
| CN106438115B (en) * | 2016-11-30 | 2019-04-05 | 东风商用车有限公司 | A kind of mixer for natural gas in use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |