Reduction of cold-start emissions and catalyst warm-up time with

Details Reduction of cold-start emissions and catalyst warm-up time with Reduction of cold-start emissions and catalyst warm-up time with

1998-01-08

2000-06-20

Dolinar, Andrew M.

Internal-combustion engines

Combustion chamber means having fuel injection only

Using multiple injectors or injections

12340653, 12340647, 60284, F02B 304, F02D 4300

Patent

active

RE0367370

ABSTRACT:
An internal combustion engine employs fuel injectors positioned to inject fuel directly into combustion chambers of the engine, and an electronic engine controller (EEC) to control operation of the engine. The EEC implements a cold start routine which controls the amount of fuel injected, the time at which the fuel is injected and spark timing to achieve a rapid increase in temperature of the engine and the exhaust system components, thereby decreasing tailpipe hydrocarbon emissions during cold start.

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