发明名称 |
REGULERINGSSYSTEM FOR DEN RELATIVE MASSESTROEMHASTIGHET AV TO GASSER, SPESIELT I FORBRENNINGSMOTORER. |
摘要 |
<p>A control system for internal combustion engines, including a first conduit for the flow of intake air, and a second conduit for the flow of natural gas to be mixed with the air for combustion. The flow of the air is variable over a range of mass flow rates during operation of the engine and an air mass sensor is positioned to sense the mass flow rate in the first conduit and generate a first flow rate signal indicating the mass flow rate. A natural gas mass sensor is positioned to sense the mass flow rate of the gas in the second conduit and to generate a second flow rate signal indicating the mass flow rate of the natural gas. The first and second flow rate signals are compared in an electronic controller that generates a control signal if the first and second flow rates vary from a predetermined ratio. The ratio is selected to provide a substantially stoichiometric ratio of air and natural gas. A valve is provided to adjustably control the flow rate of the natural gas in response to the control signal to maintain the preselected ratio. A sensor and shutoff valve are also provided for terminating the flow of the natural gas when its pressure falls below a predetermined pressure, allowing immediate flow of gasoline to the engine, thus assuring smooth, continued operation of the vehicle. A throttle body has a natural gas distribution ring in the throat of the body and provides a curtain flow of gas.</p> |
申请公布号 |
NO873526(D0) |
申请公布日期 |
1987.08.20 |
申请号 |
NO19870003526 |
申请日期 |
1987.08.20 |
申请人 |
AIRSENSORS INC |
发明人 |
SMITH, DAVID H.;MILLER, KENNETH E. |
分类号 |
F23N1/02;F02B43/00;F02D19/02;F02D19/06;F02M21/02;F02M21/04;G05D11/04;G05D11/13;(IPC1-7):F02M/ |
主分类号 |
F23N1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|