JPH0158740U - - Google Patents
Info
- Publication number
- JPH0158740U JPH0158740U JP15217187U JP15217187U JPH0158740U JP H0158740 U JPH0158740 U JP H0158740U JP 15217187 U JP15217187 U JP 15217187U JP 15217187 U JP15217187 U JP 15217187U JP H0158740 U JPH0158740 U JP H0158740U
- Authority
- JP
- Japan
- Prior art keywords
- exhaust valve
- load
- engine
- valve
- compression ratio
- 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
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 238000002485 combustion reaction Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
Description
第１図は第１実施例の全体図、第２図は圧縮比
一定の従来形機関の代表的な機関性能図、第３図
第１実施例ではロードノツチが変化した時の排気
弁のリフト比較線図、第４図は第１実施例の機関
性能曲線図、第５図は圧縮比と噴射タイミングを
同時調整した第２実施例の機関性能曲線図、第６
図は第２実施例の全体構成図である。
１……油圧ポンプ、２……吐出油路（吐出口）
、３……ストローク、４……バルブ、９……給油
油路、１５……排気弁。
Figure 1 is an overall view of the first embodiment, Figure 2 is a typical engine performance diagram of a conventional engine with a constant compression ratio, and Figure 3 is a comparison of exhaust valve lift when the load notch changes in the first embodiment. Figure 4 is an engine performance curve diagram of the first embodiment, Figure 5 is an engine performance curve diagram of the second embodiment in which the compression ratio and injection timing are simultaneously adjusted, and Figure 6 is an engine performance curve diagram of the second embodiment.
The figure is an overall configuration diagram of the second embodiment. 1...Hydraulic pump, 2...Discharge oil path (discharge port)
, 3... Stroke, 4... Valve, 9... Oil supply path, 15... Exhaust valve.
Claims (1)
する内燃機関に於て、該排気弁駆動用油圧ポンプ
の給油油路９と吐出油路２との間に介装され、機
関負荷を示すロードノツチとリンク系を介して連
結されストロークを変化せしめられるバルブを有
してなり、低負荷時にはバルブのストロークを増
加させエンジンの圧縮比を高めることを特徴とす
る内燃機関の圧縮比可変装置。 In an internal combustion engine that opens and closes an exhaust valve via a hydraulic pump for driving an exhaust valve, a load notch is installed between the oil supply passage 9 and the discharge oil passage 2 of the hydraulic pump for driving the exhaust valve, and indicates the engine load. A variable compression ratio device for an internal combustion engine, comprising a valve connected via a link system to change the stroke, and increasing the stroke of the valve to increase the compression ratio of the engine when the load is low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15217187U JPH0158740U (en) | 1987-10-06 | 1987-10-06 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15217187U JPH0158740U (en) | 1987-10-06 | 1987-10-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0158740U true JPH0158740U (en) | 1989-04-12 |
Family
ID=31426857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15217187U Pending JPH0158740U (en) | 1987-10-06 | 1987-10-06 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0158740U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015098219A1 (en) * | 2013-12-25 | 2015-07-02 | 三菱重工業株式会社 | Exhaust valve drive device and internal combustion engine equipped with same |
| JP2015132192A (en) * | 2014-01-10 | 2015-07-23 | 三菱重工業株式会社 | Exhaust valve drive and internal combustion engine equipped with same |
-
1987
- 1987-10-06 JP JP15217187U patent/JPH0158740U/ja active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015098219A1 (en) * | 2013-12-25 | 2015-07-02 | 三菱重工業株式会社 | Exhaust valve drive device and internal combustion engine equipped with same |
| JP2015124631A (en) * | 2013-12-25 | 2015-07-06 | 三菱重工業株式会社 | Exhaust valve drive device and internal combustion engine having the same |
| CN105814290A (en) * | 2013-12-25 | 2016-07-27 | 三菱重工业株式会社 | Exhaust valve drive device and internal combustion engine equipped with same |
| JP2015132192A (en) * | 2014-01-10 | 2015-07-23 | 三菱重工業株式会社 | Exhaust valve drive and internal combustion engine equipped with same |
| CN105917086A (en) * | 2014-01-10 | 2016-08-31 | 三菱重工业株式会社 | Exhaust valve drive device and internal combustion engine with same |
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