CN201620957U - Air-fuel ratio control circuit of gas generator unit - Google Patents
Air-fuel ratio control circuit of gas generator unit Download PDFInfo
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- CN201620957U CN201620957U CN 200920195455 CN200920195455U CN201620957U CN 201620957 U CN201620957 U CN 201620957U CN 200920195455 CN200920195455 CN 200920195455 CN 200920195455 U CN200920195455 U CN 200920195455U CN 201620957 U CN201620957 U CN 201620957U
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- output power
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- arithmetic unit
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Abstract
The utility model relates to an air-fuel ratio control circuit of a gas generator unit, comprising a pressure sensor, a power detection sensor, an arithmetic unit and an executor which are arranged in a gas inlet manifold of an engine. The pressure sensor is used for detecting the pressure in the gas inlet manifold, is connected with the arithmetic unit, and sends the pressure parameter to the arithmetic unit. The power detection sensor is used for detecting the output power of the engine, and is connected with the arithmetic unit to send the detected output power parameter to the arithmetic unit. The arithmetic unit is stored with the reference mapping relationship of pressure parameter and output power parameter, and is used for comparing the received pressure parameter, output power parameter and stored reference parameter. The executor is used for controlling the flow quantity of gas, and changes the flow quantity of gas according to the comparison result of the arithmetic unit, so the pressure detected by the pressure sensor approaches to the reference parameter. The utility model has the advantages of convenient, visual and accurate adjustment of air combustion ratio, and low cost, and enables the engine to achieve the optimum air-fuel ratio state.
Description
Technical field
The utility model relates to the air and the combustion gas proportional control actuating device of gas engine, makes gas engine be operated in best air/fuel and compares state.
Background technique
The gas internal-combustion engine air/fuel method more simple than control is to measure the exhaust oxygen content with lambda sensor, to realize closed loop control.Perhaps, on-line analysis fuel gas methane content remakes air mass flow, the adjusting of gas flow proportioning with control air/fuel ratio.Yet present lambda sensor is bad easily, and its life-span can be above 2 years.The apparatus expensive of methane on-line analysis scheme complexity, use.
The model utility content
The utility model is at the above-mentioned defective of prior art, provides that a kind of equipment is simple, the fuel gas generation unit air fuel ratio control circuit of processing ease, so that air fuel ratio reaches optimum value.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
A kind of fuel gas generation unit air fuel ratio control circuit, comprise the pressure transducer, power detection sensor, arithmetic mean unit, the final controlling element that are arranged at engine intake manifold, pressure transducer detects the pressure in the intake manifold, this pressure transducer is connected with arithmetic mean unit, and pressure parameter is transported to arithmetic mean unit; The power detection sensor is used for the output power of detection of engine, and the power detection sensor is connected with arithmetic mean unit and will detects the output power parameter and be delivered to arithmetic mean unit; Described arithmetic mean unit stores the benchmark mapping relations of pressure parameter and output power parameter, with the basic parameter comparison of real-time detected pressure parameter, output power parameter and storage; Final controlling element changes gas flow according to this comparative result makes the detected pressure of pressure transducer be tending towards reference parameter value.
As can be seen from the above technical solutions, the utility model makes the air/fuel ratio reach optimum value by changing air-distributor pressure, thereby makes gas engine be operated in the optimal air-fuel ratio state.The utlity model has processing ease, accurate, and advantage with low cost.
Description of drawings
Accompanying drawing is the utility model theory diagram.
Embodiment
Below in conjunction with embodiment the utility model is described in further detail.
Shown in accompanying drawing, the utility model fuel gas generation unit air fuel ratio control circuit, comprise and be arranged at the interior pressure transducer 1 that the pressure of intake manifold is detected of engine intake manifold, the power detection sensor 2 that engine output is detected, this power detection sensor 2 is connected with arithmetic mean unit 3 respectively with pressure transducer 1, arithmetic mean unit 3 stores the pressure parameter and the output power parameter mapping relations of benchmark, pressure parameter and output power parameter that power detection sensor and pressure transducer obtain its detection respectively are sent to arithmetic mean unit, arithmetic mean unit compares the pressure parameter that receives and the reference pressure parameter and the output power parameter of output power parameter and storage, find corresponding power, obtain the deviation of pressure, because the pressure of intake manifold becomes corresponding relation with gas flow, thereby the deviation of pressure reflected the deviation of gas flow, and final controlling element 4 changes gas flow according to this comparative result makes the detected pressure of pressure transducer be tending towards reference parameter value.When force value was tending towards reference value, air fuel ratio also reached desired value.Utilize force value as the parameter of regulating combustion gas and AIR Proportional, have easy to adjust, intuitive and accurate advantage.This pressure parameter and the benchmark mapping relations of output power parameter are based upon the state of desired air/fuel ratio, and this state can be determined by the discharging that detects tail gas.
Above-mentioned specific embodiment is purpose, feature and the effect that is used for describing in detail the utility model, for the personage who is familiar with this type of skill, according to the above description, may do part change and modification to this specific embodiment, its essence does not detach the spiritual category person of the utility model, all should be included in the claim of this case suitable first Chen Ming.
Claims (1)
1. fuel gas generation unit air fuel ratio control circuit, it is characterized in that, comprise the pressure transducer, power detection sensor, arithmetic mean unit, the final controlling element that are arranged at engine intake manifold, pressure transducer detects the pressure in the intake manifold, this pressure transducer is connected with arithmetic mean unit, and pressure parameter is transported to arithmetic mean unit; The power detection sensor is used for the output power of detection of engine, and the power detection sensor is connected with arithmetic mean unit and will detects the output power parameter and be delivered to arithmetic mean unit; Described arithmetic mean unit stores the pressure parameter and the output power parameter mapping relations of benchmark, with the basic parameter of the pressure parameter, output power parameter and the storage that receive relatively; Final controlling element is used to control gas flow, and its comparative result according to arithmetic mean unit changes gas flow makes the detected pressure of pressure transducer be tending towards reference parameter value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920195455 CN201620957U (en) | 2009-09-25 | 2009-09-25 | Air-fuel ratio control circuit of gas generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920195455 CN201620957U (en) | 2009-09-25 | 2009-09-25 | Air-fuel ratio control circuit of gas generator unit |
Publications (1)
| Publication Number | Publication Date |
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| CN201620957U true CN201620957U (en) | 2010-11-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920195455 Expired - Fee Related CN201620957U (en) | 2009-09-25 | 2009-09-25 | Air-fuel ratio control circuit of gas generator unit |
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| CN (1) | CN201620957U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696660A (en) * | 2009-09-25 | 2010-04-21 | 东莞市康达机电工程有限公司 | Method for controlling air-fuel ratio of fuel gas generator set |
| CN102094719A (en) * | 2011-03-22 | 2011-06-15 | 中国汽车工程研究院股份有限公司 | Air-fuel ratio regulating device and method |
| CN104806364A (en) * | 2015-03-06 | 2015-07-29 | 广州资源设备成套工程有限公司 | Marsh gas generating set load dynamic control system and method |
| CN106015074A (en) * | 2016-06-29 | 2016-10-12 | 佛山市顺德区奇林电气有限公司 | Method and device for controlling start-up power of draught fan |
| CN111058954A (en) * | 2020-03-18 | 2020-04-24 | 山东赛马力动力科技有限公司 | Gas concentration self-adaptive control method for gas generator set |
-
2009
- 2009-09-25 CN CN 200920195455 patent/CN201620957U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696660A (en) * | 2009-09-25 | 2010-04-21 | 东莞市康达机电工程有限公司 | Method for controlling air-fuel ratio of fuel gas generator set |
| CN102094719A (en) * | 2011-03-22 | 2011-06-15 | 中国汽车工程研究院股份有限公司 | Air-fuel ratio regulating device and method |
| CN102094719B (en) * | 2011-03-22 | 2012-12-19 | 中国汽车工程研究院股份有限公司 | Air-fuel ratio regulating device and method |
| CN104806364A (en) * | 2015-03-06 | 2015-07-29 | 广州资源设备成套工程有限公司 | Marsh gas generating set load dynamic control system and method |
| CN104806364B (en) * | 2015-03-06 | 2018-02-02 | 广州资源设备成套工程有限公司 | Biogas Generator Set load kinetic-control system and method |
| CN106015074A (en) * | 2016-06-29 | 2016-10-12 | 佛山市顺德区奇林电气有限公司 | Method and device for controlling start-up power of draught fan |
| CN111058954A (en) * | 2020-03-18 | 2020-04-24 | 山东赛马力动力科技有限公司 | Gas concentration self-adaptive control method for gas generator set |
| CN111058954B (en) * | 2020-03-18 | 2020-08-28 | 山东赛马力动力科技有限公司 | Gas concentration self-adaptive control method for gas generator set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: CAMDA NEW ENERGY EQUIPMENT CO., LTD. Free format text: FORMER NAME: DONGGUAN CAMDA GENERATOR WORK CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 523000, Dongguan City, Guangdong province Liaobu Tong Yan Industrial Zone Dongguan Kangda Electrical and Mechanical Engineering Co., Ltd. Patentee after: CAMDA NEW ENERGY EQUIPMENT CO., LTD. Address before: 523000, Dongguan City, Guangdong province Liaobu Tong Yan Industrial Zone Dongguan Kangda Electrical and Mechanical Engineering Co., Ltd. Patentee before: Dongguan Camda Generator Work Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20180925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |