JP2019157847A - エンジン - Google Patents
エンジン Download PDFInfo
- Publication number
- JP2019157847A JP2019157847A JP2018050008A JP2018050008A JP2019157847A JP 2019157847 A JP2019157847 A JP 2019157847A JP 2018050008 A JP2018050008 A JP 2018050008A JP 2018050008 A JP2018050008 A JP 2018050008A JP 2019157847 A JP2019157847 A JP 2019157847A
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- JP
- Japan
- Prior art keywords
- hydraulic
- chamber
- hydraulic chamber
- piston
- pressure
- 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.)
- Granted
Links
- 238000002485 combustion reaction Methods 0.000 claims abstract description 110
- 238000004891 communication Methods 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims description 48
- 230000006835 compression Effects 0.000 claims description 41
- 238000007906 compression Methods 0.000 claims description 41
- 230000008859 change Effects 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 description 22
- 238000012986 modification Methods 0.000 description 22
- 238000005192 partition Methods 0.000 description 21
- 230000001629 suppression Effects 0.000 description 21
- 239000010720 hydraulic oil Substances 0.000 description 18
- 238000010586 diagram Methods 0.000 description 17
- 239000000446 fuel Substances 0.000 description 16
- 230000002000 scavenging effect Effects 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- 239000003921 oil Substances 0.000 description 12
- 230000007423 decrease Effects 0.000 description 11
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003915 liquefied petroleum gas Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
Landscapes
- Output Control And Ontrol Of Special Type Engine (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
110 シリンダ
112 ピストン
114a 大径部(摺動部)
114a1 油圧面
128 燃焼室
154a 油圧室
158b 副油圧室
172 油圧ポンプ
182 圧縮比制御部
200 エンジン
220 連通路
300 エンジン
CMa 連通機構
400 エンジン
CMb 連通機構
Claims (3)
- シリンダと、
前記シリンダに収容されたピストンと、
前記ピストンに面する燃焼室と、
前記ピストンと一体にストロークする摺動部と、
前記摺動部のうち、前記燃焼室と反対側に臨む油圧面と、
前記油圧面が面する油圧室と、
前記摺動部のストローク方向の位置が所定範囲内にある場合に、前記油圧室に一端を開口させ、前記摺動部のストローク方向の位置が前記所定範囲よりも前記燃焼室から離隔する方向にある場合に前記一端が閉じられる連通路と、
前記連通路の他端が開口し、前記油圧室内の油圧に応じて容積が変化する副油圧室と、
を備えるエンジン。 - シリンダと、
前記シリンダに収容されたピストンと、
前記ピストンに面する燃焼室と、
前記ピストンと一体にストロークする摺動部と、
前記摺動部のうち、前記燃焼室と反対側に臨む油圧面と、
前記油圧面が面する油圧室と、
前記油圧室に一端が開口する連通路と、
前記連通路の他端が開口し、前記油圧室内の油圧に応じて容積が変化する副油圧室と、
前記油圧室の油圧、または、前記燃焼室内の圧力である指標値が閾値を超えた場合に、前記油圧室と前記副油圧室とを連通させ、前記指標値が閾値以下の場合に、前記油圧室と前記副油圧室とを非連通とする連通機構と、
を備えるエンジン。 - 前記油圧室に接続された油圧ポンプと、
前記油圧ポンプを制御し、前記ピストンの上死点位置を変更させる圧縮比制御部をさらに備える請求項1または2に記載のエンジン。
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018050008A JP6878340B2 (ja) | 2018-03-16 | 2018-03-16 | エンジン |
KR1020207026642A KR102384827B1 (ko) | 2018-03-16 | 2019-03-14 | 엔진 |
PCT/JP2019/010589 WO2019177109A1 (ja) | 2018-03-16 | 2019-03-14 | エンジン |
EP19768663.7A EP3767089B1 (en) | 2018-03-16 | 2019-03-14 | Engine |
DK19768663.7T DK3767089T3 (da) | 2018-03-16 | 2019-03-14 | Motor |
CN201980019715.2A CN111886404B (zh) | 2018-03-16 | 2019-03-14 | 发动机 |
US17/008,860 US11174826B2 (en) | 2018-03-16 | 2020-09-01 | Engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018050008A JP6878340B2 (ja) | 2018-03-16 | 2018-03-16 | エンジン |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019157847A true JP2019157847A (ja) | 2019-09-19 |
JP6878340B2 JP6878340B2 (ja) | 2021-05-26 |
Family
ID=67992459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018050008A Active JP6878340B2 (ja) | 2018-03-16 | 2018-03-16 | エンジン |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP6878340B2 (ja) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118006B2 (ja) * | 1972-01-12 | 1976-06-07 | ||
JPH0444450U (ja) * | 1990-08-22 | 1992-04-15 | ||
JP2008038753A (ja) * | 2006-08-07 | 2008-02-21 | Honda Motor Co Ltd | 内燃機関の圧縮比可変装置 |
DE102007026312A1 (de) * | 2007-06-06 | 2008-12-11 | Karl Richter | Pleuelstange für Hubkolbenmotore |
US20150167561A1 (en) * | 2013-12-13 | 2015-06-18 | Hyundai Motor Company | Variable compression ratio device |
WO2015108182A1 (ja) * | 2014-01-20 | 2015-07-23 | 株式会社Ihi | エンジン |
KR20160131320A (ko) * | 2015-05-06 | 2016-11-16 | 현대자동차주식회사 | 가변 압축비 엔진 |
-
2018
- 2018-03-16 JP JP2018050008A patent/JP6878340B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5118006B2 (ja) * | 1972-01-12 | 1976-06-07 | ||
JPH0444450U (ja) * | 1990-08-22 | 1992-04-15 | ||
JP2008038753A (ja) * | 2006-08-07 | 2008-02-21 | Honda Motor Co Ltd | 内燃機関の圧縮比可変装置 |
DE102007026312A1 (de) * | 2007-06-06 | 2008-12-11 | Karl Richter | Pleuelstange für Hubkolbenmotore |
US20150167561A1 (en) * | 2013-12-13 | 2015-06-18 | Hyundai Motor Company | Variable compression ratio device |
WO2015108182A1 (ja) * | 2014-01-20 | 2015-07-23 | 株式会社Ihi | エンジン |
KR20160131320A (ko) * | 2015-05-06 | 2016-11-16 | 현대자동차주식회사 | 가변 압축비 엔진 |
Also Published As
Publication number | Publication date |
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JP6878340B2 (ja) | 2021-05-26 |
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