Intake system of a multi-cylinder internal combustion engine

Details Intake system of a multi-cylinder internal combustion engine Intake system of a multi-cylinder internal combustion engine

1979-07-20

1981-11-17

Lazarus, Ronald H.

Internal-combustion engines

Means to whirl fluid before, upon, or after entry into...

Having multiple oxidant inlet means

123432, 123 59PC, 123 52M, F02M 1306

Patent

active

043005004

ABSTRACT:
A multi-cylinder engine comprising a carburetor housing forming therein at least two branch mixture passages. Each of the branch mixture passages is connected to a respective intake port. A throttle valve of the carburetor is provided for each cylinder. Each of the throttle valves is arranged in the respective branch mixture passage and attached onto a common throttle shaft. A wedge shaped groove is formed on the bottom inner wall of each of the branch mixture passages, and the common throttle shaft is arranged in the wedge shaped groove for causing the mixture to flow only along the upper wall of the branch mixture passage. A single common connecting passage and branch connecting passages which are connected to the common connecting passage are provided. Each of the branch connecting passages opens into the respective intake port in the vicinity of the rear face of the valve head of the corresponding intake valve and is tangentially connected to the inner wall of the corresponding intake port, said wall extending circumferentially about the axis of the corresponding intake valve.

REFERENCES:
patent: 2038157 (1936-04-01), Aseltine
patent: 2436319 (1948-02-01), Meyer
patent: 3713630 (1973-01-01), Larrade et al.
patent: 3874357 (1975-04-01), List et al.
patent: 4095565 (1978-06-01), Noguchi et al.
patent: 4186706 (1980-02-01), Matsumoto
patent: 4194474 (1980-03-01), Endo
patent: 4196701 (1980-04-01), Tamura et al.
patent: 4214561 (1980-07-01), Matsumoto et al.

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