Internal-combustion engines – Accessories – Covers – trays – vibrators – corrosion inhibitors – air filters
Patent
1983-02-18
1984-07-31
Lazarus, Ira S.
Internal-combustion engines
Accessories
Covers, trays, vibrators, corrosion inhibitors, air filters
123481, 123571, F02D 1702
Patent
active
044623518
ABSTRACT:
An internal combustion engine comprises an induction passage divided downstream of a throttle valve into two intake passages respectively communicating with first and second cylinder units, and an EGR passage connected from the engine exhaust to the induction passage downstream of the throttle valve. The EGR passage has therein an EGR valve whose position determines the flow area for exhaust gases through the EGR passage. A control unit disables the second cylinder unit to shift the engine from full engine operation into split engine operation when the engine load falls below a predetermined value. The control unit comprises a computer including at least two read only memories, the first storing EGR ratio values arranged in relation with engine speed and load for the engine being in full engine operation. The second read only memory stores EGR ratio values arranged in relation with engine speed and load for the engine being in split engine operation. The computer is responsive to engine speed and load conditions for reading out an optimum EGR ratio value from the first read only memory when the engine is in full engine operation or from the second read only memory when the engine is in split engine operation. The position of the EGR valve is controlled in accordance with the read out EGR ratio value.
REFERENCES:
patent: 4201180 (1980-05-01), Iizuka
patent: 4249374 (1981-02-01), Sugasawa et al.
patent: 4303053 (1981-12-01), Etoh et al.
patent: 4320726 (1982-03-01), Etoh et al.
patent: 4337740 (1982-07-01), Sugasawa et al.
patent: 4344393 (1982-08-01), Etoh et al.
patent: 4398520 (1983-08-01), Schulz et al.
patent: 4411228 (1983-10-01), Sugasawa
Hartig, Fritz et al., "Die BMW-Zylinderabschaltung", Automobiltechnische Zeitschrift 83 (1981), pp. 69-73.
Fujii Hiroshi
Kamegaya Sigeru
Lazarus Ira S.
Nissan Motor Company Limited
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