Measuring and testing – Simulating operating condition – Marine
Patent
1984-03-20
1986-03-18
Myracle, Jerry W.
Measuring and testing
Simulating operating condition
Marine
73204, 123494, G01M 1500
Patent
active
045760390
ABSTRACT:
This apparatus measures and detects the air-flow taken into an intake pipe of an internal combustion engine, and includes an air-flow detecting sensor. The air-flow detecting sensor comprises a support frame made of heat-resistant insulation material, a heating line supported by the support frame on the upper side when viewed from the direction in which the air-flows, a heat-controlled heating current, and a resistance line also supported by the support frame on the lower side when viewed from the direction in which the air-flows which has a temperature characteristic. Air-flow detecting signals which represent the condition under which heat is transmitted to the resistance line through the air-flow are picked up from the sensor for every specified timing to set and calculate the transmitting coefficients of heat transmitted from the heating line to the resistance line, which is specified by the sensor and which is set corresponding to the amount of the signal detected by the sensor. The signal detected by the sensor is inversely transformed using the transmitting coefficients, and this transformed signal is supplied to the electronic control circuit of the internal combustion engine as part of the signal used for detecting the conditions under which the engine should be operated.
REFERENCES:
patent: 4357830 (1982-11-01), Kohama et al.
patent: 4400974 (1983-08-01), Nishimura et al.
Abe Tomoaki
Kinugawa Masumi
Muto Yukio
Myracle Jerry W.
Nippondenso Co. Ltd.
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