Control apparatus for intake and exhaust valves of an internal c

Internal-combustion engines – Four-cycle – Multiple exhaust

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Details

123 9015, 123323, F02B 7502

Patent

active

047795891

ABSTRACT:
An internal combustion piston engine having a plurality of intake valves and a plurality of exhaust valves per cylinder employs apparatus for disabling the operation of at least one exhaust valve upon decrease in speed of the engine below a predetermined level.

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