Internal-combustion engines – Combustion chamber means combined with air-fuel mixture... – Air or combustible mixture entering the combustion chamber...
Patent
1987-11-12
1990-05-22
Cross, E. Rollins
Internal-combustion engines
Combustion chamber means combined with air-fuel mixture...
Air or combustible mixture entering the combustion chamber...
123440, 123 9016, F02B 1500
Patent
active
049268236
ABSTRACT:
A method for controlling the air/fuel ratio of the intake air mixture supplied to an internal combustion engine having multiple cylinders and a valve operating mechanism for switching the magnitude of the intake valve openings for low and high speed operation. The method includes the step of providing a lean air/fuel ratio at low speeds and the step of gradually varying the air/fuel ratio of a range of engine speeds that include the speed at which the valve operation is switched to avoid any possible abrupt change in engine output upon switching the valve operation.
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Katoh Atsushi
Kishi Noriyuki
Saita Tomohisa
Cross E. Rollins
Honda Giken Kogyo Kabushiki Kaisha
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