There is provided an intake-air amount detecting system for an internal combustion engine in which a first temperature of an intake air for an internal combustion engine is measured, the intake-air is heated by an electrical heating element, a second temperature of the heated intake-air is measured,...http://www.google.fr/patents/US3975951?utm_source=gb-gplus-shareBrevet US3975951 - Intake-air amount detecting system for an internal combustion engine
Intake-air amount detecting system for an internal combustion engine
