|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||73/116 ; 324/378 ; 324/399 ; 324/402|
|발명자 / 주소|
|출원인 / 주소|
|대리인 / 주소||
|인용정보||피인용 횟수 : 6 인용 특허 : 10|
The quality of a fuel-air mixture shall be evaluated by a process and a device during a phase of combustion, especially in a spark ignition engine, in order to make possible a low-emission, fuel-saving and knock-free operation. An electrical testing pulse P is sent for this purpose to the spark plug during the phase of combustion V following the ignition pulse Z. The effect of the actual fuel-air mixture of the combustion chamber on the testing pulse is detected and evaluated as an electrical variable.
[ What is claimed is:] [1.] A process for evaluating a air-fuel ratio of a air-fuel mixture during combustion, the process comprising the steps of;providing a combustion chamber for holding the air-fuel mixture, said combustion chamber including a spark plug;igniting the air-fuel mixture with an electric ignition pulse to said spark plug, said electric ignition pulse being generated at an ignition point in time;providing a time delay starting at said ignition point of time;applying an electric testing pulse P to the fuel-air mixture through said spark pl...