Air intake measuring apparatus for internal combustion engine

Details Air intake measuring apparatus for internal combustion engine Air intake measuring apparatus for internal combustion engine

1982-01-07

1983-12-20

Myracle, Jerry W.

Measuring and testing

Simulating operating condition

Marine

73202, G01M 1500

Patent

active

044209720

ABSTRACT:
An air intake measuring apparatus for an internal combustion engine comprises a bypass passageway formed in a throttle body by bypassing a venturi section in a suction passage, and a thermal probe arranged in the bypass passageway for determining the air intake by measuring the flow velocity of an air current flowing through the bypass passageway. A venturi member for forming in the throttle body the venturi section and the bypass passageway is force fitted in the throttle body to provide a unitary structure. The bypass passageway has an inlet port of a static pressure introducing type formed on the side of the suction passage and outlet ports formed in the venturi section close to the inlet port, while the thermal probe is located in the bypass passageway in a segment thereof of a minimum cross-sectional area.

REFERENCES:
patent: 3776208 (1973-12-01), Stumpp
patent: 4366704 (1983-01-01), Sato et al.

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