Split engine operation of closed loop controlled multi-cylinder

Details Split engine operation of closed loop controlled multi-cylinder Split engine operation of closed loop controlled multi-cylinder

1978-10-02

1980-05-06

Lazarus, Ira S.

Internal-combustion engines

Accessories

Covers, trays, vibrators, corrosion inhibitors, air filters

123 32EE, 123119A, 60288, F02D 1700

Patent

active

042011809

ABSTRACT:
Split engine operation of a closed loop controlled multi-cylinder internal combustion engine is effected by a charge forming device which comprises an induction system including a common chamber divided by a partition into a first sub-chamber and into a second sub-chamber and an air admission valve to permit or prevent admission of air into the second sub-chamber. The first sub-chamber has an opening communicating with the atmosphere to supply air to three cylinders and, when the air admission valve is opened, the second sub-chamber will communicate with the opening to supply air to the remaining three cylinders. The air admission valve is opened to effect 6-cylinder mode engine operation and is closed to effect 3-cylinder mode engine operation. At 3-cylinder mode engine operation, substantially all of the exhaust gases discharged from the inactive three cylinders are fed to the second sub-chamber for recirculation via these three cylinders and all of the exhaust gases discharged from the active three cylinders are permitted to flow toward an oxygen sensor for the closed loop control.

REFERENCES:
patent: 2875742 (1939-03-01), Dolza
patent: 3756205 (1973-09-01), Frost
patent: 3765394 (1973-10-01), Francis
patent: 3800772 (1974-04-01), Gospodar
patent: 4107921 (1978-08-01), Lizuka
patent: 4114374 (1978-09-01), Tanahashi

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