Cylinder head variable swirl siamese type intake port structure including biasing means diverting mixture flow towards diverting means which bypasses straight intake passage control valve
This patent describes a variable swirl siamese type intake port structure for an internal combustion engine cylinder head formed with a combustion chamber to which a spark plug having an ignition point is provided, comprising: a first generally straight intake passage which leads to a first intake port opening to the combustion chamber; a second generally helical intake passage which leads to a second intake port, also opening to the combustion chamber, formed with a helical end vortex portion; a control valve fitted in the first generally straight intake passage at an upstream portion thereof so as to control its flow resistance; a means, provided to the generally straight intake passage on the side thereof towards the generally helical intake passage.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha
- Patent Number(s):
- US 4671233
- OSTI ID:
- 6184099
- Country of Publication:
- United States
- Language:
- English
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Internal combustion engine cylinder head variable swirl siamese type intake port structure
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Related Subjects
330101* -- Internal Combustion Engines-- Spark-Ignition
COMBUSTION CHAMBERS
CYLINDERS
DISPERSIONS
ELECTRIC DISCHARGES
ELECTRIC SPARKS
ENGINES
FLUID FLOW
FUEL-AIR RATIO
HEAT ENGINES
IGNITION SYSTEMS
INTAKE STRUCTURES
INTERNAL COMBUSTION ENGINES
MECHANICAL STRUCTURES
MIXTURES
SPARK IGNITION ENGINES
VORTEX FLOW