Internal combustion engine Siamese port type intake system construction with deflection valve additional to intake control valve
An intake system construction for an internal combustion engine formed with a combustion chamber is described comprising: a generally straight forward intake port opening to the combustion chamber; a generally helical second intake port also opening to the combustion chamber; a common intake passage leading to upstream end of the first and the second intake port; a control valve fitted in the first intake port so as selectively to throttle the first intake port; and a deflection valve fitted in the common intake passage so as selectively to constrict a part of a cross sectional opening of the common intake passage and to deflect intake flow therethrough towards the second intake port and away from the first intake port.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha, Aichi
- Patent Number(s):
- US 4719886
- OSTI ID:
- 5280922
- Country of Publication:
- United States
- Language:
- English
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