Internal-combustion engines – Intake manifold – Manifold tuning – balancing or pressure regulating means
Patent
1999-02-12
2000-08-22
McMahon, Marguerite
Internal-combustion engines
Intake manifold
Manifold tuning, balancing or pressure regulating means
F02M 3500
Patent
active
06105545&
ABSTRACT:
An inlet port for a spark-ignition reciprocating-piston internal combustion engine is provided with means for altering the direction of approach flow of the conducted gas to an inlet valve leading to a combustion chamber for producing a desired swirling of the charge selectively in the combustion chamber. The means consists of an expansion body which is arranged asymmetrically on the wall of the inlet port, consisting of a supporting body abutting against the wall and an elastomer portion connected to the latter at the edges gas-tightly and liquid-tightly. The expansion body can be expanded through a connection piece by pumping in a fluid so that it forms a ramp which predetermines the direction of approach flow of the conducted gas to the inlet valve. The cross-section of the inlet port is not impaired when the ramp is not required.
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JP 60-159332, Patent Abstracts of Japan, M-441, vol. 9, No. 326, Dec. 21, 1985.
Barr Jr. Karl F.
Benton Jason
Bridges Michael J.
General Motors Corporation
McMahon Marguerite
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