Claims
- 1. In an intake system for an internal combustion engine of a type having a combustion chamber, an intake passage and an exhaust passage opening to the combustion chamber, and an intake valve and an exhaust valve disposed in said intake and exhaust passages to open and close the respective passages, said intake valve having a longitudinal axis and a peripheral edge, the improvement comprising a closed supply chamber of a predetermined volume, and control passage means connected at one end to the supply chamber and being open at another end to a lower surface of the intake passage upstream of and in the immediate vicinity of the intake valve and being substantially directed at an angle offset from the longitudinal axis of the intake valve to a juncture formed upstream of the intake valve where the peripheral edge of the intake valve meets the intake passage, and the mixture in the supply chamber is fed to the combustion chamber through the control passage means upon opening of the intake valve.
- 2. An intake system for an internal combustion engine as claimed in claim 1 wherein said internal combustion engine is a four-stroke cycle engine.
- 3. An intake system for an internal combustion engine as claimed in claim 2 wherein said control passage means opens to said intake passage at a portion of the latter at the upstream side of said intake valve.
- 4. An intake system for an internal combustion engine as claimed in claim 1 wherein said control passage means comprises a single control passage.
- 5. An intake system for an internal combustion engine as claimed in claim 4 wherein said internal combustion engine is a four-stroke cycle engine.
- 6. An intake system for internal combustion engine as claimed in claim 4 wherein said control passage means opens to said intake passage at a portion of the latter at the upstream side of said intake valve.
- 7. An intake system for an internal combustion engine as claimed in claim 1 wherein said control passage means is directed in an offset direction from the center of said combustion chamber.
- 8. An intake system for an internal combustion engine as claimed in claim 7 wherein said internal combustion engine is a four-stroke cycle engine.
- 9. An intake system for an internal combustion engine as claimed in claim 8 wherein said control passage means opens to said intake passage at a portion of the latter at the upstream side of said intake valve.
- 10. An intake system for an internal combustion engine as claimed in claim 7 wherein said control passage means comprises a single control passage.
- 11. An intake system for an internal combustion engine as claimed in claim 10 wherein said internal combustion engine is a four-stroke cycle engine.
- 12. An intake system for internal combustion engine as claimed in claim 10 wherein said control passage means opens to said intake passage at a portion of the latter at the upstream side of said intake valve.
Priority Claims (1)
Number |
Date |
Country |
Kind |
54-101546 |
Aug 1979 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 175,834 filed Aug. 6, 1980, now abandoned.
US Referenced Citations (9)
Foreign Referenced Citations (1)
Number |
Date |
Country |
0060317 |
May 1977 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
175834 |
Aug 1980 |
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