JPS5732013A - Intake device for four-cycle multicylinder engine - Google Patents
Intake device for four-cycle multicylinder engineInfo
- Publication number
- JPS5732013A JPS5732013A JP10534480A JP10534480A JPS5732013A JP S5732013 A JPS5732013 A JP S5732013A JP 10534480 A JP10534480 A JP 10534480A JP 10534480 A JP10534480 A JP 10534480A JP S5732013 A JPS5732013 A JP S5732013A
- Authority
- JP
- Japan
- Prior art keywords
- intake
- accessory
- passage
- intake passage
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000011144 upstream manufacturing Methods 0.000 abstract 1
Landscapes
- Characterised By The Charging Evacuation (AREA)
Abstract
PURPOSE: To prevent misfire at a slow revolution speed, by providing a check valve at the branched part of each accessory intake passage to enable the intake in the branched part to flow only toward a main intake passage so that the return of exhaust due to the overlap of intake periods of plural cylinders is suppressed.
CONSTITUTION: Accessory intake passages 66, which are connected to each other, are provided in accessory intake pipes 60, accessory carburetor 62 and cylinder heads 14. The upstream gathered part 68 of the accessory intake passage 66 is connected to the atmosphere through an accessory throttle valve 70 in the accessory carburetor 62. The downstream branched part 72 of the passage 66 is opened through the cylinder head 14 into main intake passage 26 near the intake valve 20 of each cylinder. The branched part 72 is equipped with a check valve 84 which allows the intake in the part 72 to flow toward the main intake passage 26 but does not allow the intake to flow in the opposite direction. According to this constitution, the return of exhaust in slow operation is prevented from becoming excessive. This results in making it hard for misfire to occur.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10534480A JPS5732013A (en) | 1980-07-31 | 1980-07-31 | Intake device for four-cycle multicylinder engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10534480A JPS5732013A (en) | 1980-07-31 | 1980-07-31 | Intake device for four-cycle multicylinder engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5732013A true JPS5732013A (en) | 1982-02-20 |
Family
ID=14405110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10534480A Pending JPS5732013A (en) | 1980-07-31 | 1980-07-31 | Intake device for four-cycle multicylinder engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5732013A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123722A (en) * | 1977-04-05 | 1978-10-28 | Nissan Motor Co Ltd | Intake air apparatus of internal combustion engine |
-
1980
- 1980-07-31 JP JP10534480A patent/JPS5732013A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53123722A (en) * | 1977-04-05 | 1978-10-28 | Nissan Motor Co Ltd | Intake air apparatus of internal combustion engine |
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