JPS57318A - Intake device for internal combustion engine - Google Patents
Intake device for internal combustion engineInfo
- Publication number
- JPS57318A JPS57318A JP7292680A JP7292680A JPS57318A JP S57318 A JPS57318 A JP S57318A JP 7292680 A JP7292680 A JP 7292680A JP 7292680 A JP7292680 A JP 7292680A JP S57318 A JPS57318 A JP S57318A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- intake
- opened
- rotary valve
- intake valve
- 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
Landscapes
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
PURPOSE: To improve intake efficiency, by mounting a rotary valve in an intake passage near an intake valve and opening the rotary valve and the intake valve at prescribed points of time, respectively, to make the corss-sectional area of the opening of the intake valve large from the beginning of suction process.
CONSTITUTION: A rotary valve 6 is mounted halfway in an intake passage 5 provided in the cylinder heat 2 of a four-cycle engine. The rotary valve 6 is located near an intake valve 3. A sucked mixture or air flows into a cylinder chamber 4 only when both the valves 3, 6 are opened at the same time. The intake valve 3 is interlocked with a crankshaft so that the valve 3 is almost fully opened at the end of exhaust process. The rotary valve 6 is interlocked with the crankshaft so that the valve 6 is opened just before the end of exhaust process. Since the intake valve 3 is quickly opened and closed because of the double action of both the valves 3, 6, the intake efficiency of the engine is improved.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7292680A JPS57318A (en) | 1980-05-31 | 1980-05-31 | Intake device for internal combustion engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7292680A JPS57318A (en) | 1980-05-31 | 1980-05-31 | Intake device for internal combustion engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57318A true JPS57318A (en) | 1982-01-05 |
Family
ID=13503440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7292680A Pending JPS57318A (en) | 1980-05-31 | 1980-05-31 | Intake device for internal combustion engine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57318A (en) |
-
1980
- 1980-05-31 JP JP7292680A patent/JPS57318A/en active Pending
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