제어로봇시스템학회:학술대회논문집
- 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 26-27 Oct. 1990
- /
- Pages.1037-1042
- /
- 1990
Measurement of suction air amount at reciprocating engine under stationary and transient operation
- Kubota, Yuzuru (Mutotan Institute of Technology) ;
- Hayashi, Shigenobu (Mutotan Institute of Technology) ;
- Kajitani, Shuichi (Faculty of Engineering Ibaraki University) ;
- Sawa, Norihiro (Faculty of Engineering Ibaraki University)
- 발행 : 1990.10.01
초록
The air-fuel ratio of an internal combustion engine must be controlled with accuracy for the improvements of exhaust emission and fuel consumption. Therefore, it is necessary to measure the exact instantaneous amounts of fuel and suction air, so we carried out the experiments for measuring the air flow velocity in a suction pipe of an internal combustion engine using three types of instantaneous air flowmeter. The results obtained can be summarized as follows: (1) The laminar-flow type flowmeter is able to measure both the average and the instantaneous flow rate, but it is necessary to rectify the pulsating air flow in the suction pipe. (2) The a spark-discharge type flow velocity meter is able to measure the instantaneous air velocity, but it is necessary to choose the suitable electrode form and the spark character. (3) The tandem-type hot-wire flow velocity meter indicates the instantaneous flow velocity and its flow direction.
키워드