Valve for adding extra air in an internal combustion engine

Details Valve for adding extra air in an internal combustion engine Valve for adding extra air in an internal combustion engine

1977-03-10

1978-10-31

Myhre, Charles J.

Internal-combustion engines

Intake manifold

Manifold tuning, balancing or pressure regulating means

123119DB, 123124R, 261DIG19, F02D 1108

Patent

active

041228065

ABSTRACT:
A valve arrangement for adding air to the intake line of an internal combustion engine, particularly Otto-cycle engines, during the deceleration of the engine. A diaphragm which is controlled by intake pipe pressure, acts against the force of a spring and is located within a dosing or metering unit so as to divide the unit into two chambers. The diaphragm actuates the valve via a rod, and the two chambers are connected through a calibration and a check valve. The upper chamber can be vented through a bore or opening by means of a second diaphragm which is controlled by the intake pipe pressure and acts against the force of a spring. A barometer bellows determines the preload of the spring through a disc and a rod.

REFERENCES:
patent: 2969800 (1961-01-01), Skirvin
patent: 3698371 (1972-10-01), Mitsuyama
patent: 3752131 (1973-08-01), Tsumura
patent: 3852391 (1974-12-01), Hisatomi
patent: 3866583 (1975-02-01), Pundt
patent: 3987131 (1976-10-01), Hisatomi
patent: 3996904 (1976-12-01), Kobuki

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