JP2019120154A - ガスエンジンの燃焼室構造 - Google Patents
ガスエンジンの燃焼室構造 Download PDFInfo
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- JP2019120154A JP2019120154A JP2017253881A JP2017253881A JP2019120154A JP 2019120154 A JP2019120154 A JP 2019120154A JP 2017253881 A JP2017253881 A JP 2017253881A JP 2017253881 A JP2017253881 A JP 2017253881A JP 2019120154 A JP2019120154 A JP 2019120154A
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- Prior art keywords
- combustion chamber
- piston
- sub
- cylinder head
- gas engine
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/12—Engines characterised by precombustion chambers with positive ignition
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B19/00—Engines characterised by precombustion chambers
- F02B19/16—Chamber shapes or constructions not specific to sub-groups F02B19/02 - F02B19/10
- F02B19/18—Transfer passages between chamber and cylinder
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M21/00—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form
- F02M21/02—Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion Methods Of Internal-Combustion Engines (AREA)
Abstract
Description
図3に、本発明の第2実施形態に係るガスエンジンの燃焼室構造1Bを示す。なお、本実施形態において、第1実施形態と同一構成要素には同一符号を付し、重複した説明は省略する。
本発明は上述した実施形態に限定されるものではなく、本発明の要旨を逸脱しない範囲で種々の変形が可能である。
2 主燃焼室
21 中心線
3 ピストン
4 シリンダヘッド
5 主燃焼室
6 副室部材
7 副燃焼室
8 ノズル
81 火炎噴射軸
Claims (3)
- シリンダヘッドとピストンの間に形成された主燃焼室と、
前記主燃焼室の中心線上で前記シリンダヘッドに取り付けられた副室部材の内部に形成された副燃焼室であって、前記副室部材に放射状に設けられた複数のノズルによって前記主燃焼室と連通する副燃焼室と、を備え、
前記ピストンが上死点に位置するときに、少なくとも、前記ピストンの半径の1/2の半径で規定される中央領域において、前記シリンダヘッドと前記ピストンの間隔が前記副室部材から遠ざかるにつれて広がっており、かつ、前記複数のノズルのそれぞれの中心線の延長線である火炎噴射軸から前記シリンダヘッドまでの距離と前記火炎噴射軸から前記ピストンまでの距離が実質的に等しい、ガスエンジンの燃焼室構造。 - 前記火炎噴射軸は、前記副室部材から遠ざかるにつれて前記ピストンに向かって倒れるように傾斜しており、
前記ピストンの頂き面は、少なくとも前記中央領域において径方向外側に向かって下り勾配となるテーパー状である、請求項1に記載のガスエンジンの燃焼室構造。 - 前記複数のノズルの向きは、前記ピストンが上死点に位置するときに前記火炎噴射軸が前記ピストンと干渉しないように設定されている、請求項1または2に記載のガスエンジンの燃焼室構造。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017253881A JP6393823B1 (ja) | 2017-12-28 | 2017-12-28 | ガスエンジンの燃焼室構造 |
PCT/JP2018/040496 WO2019130801A1 (ja) | 2017-12-28 | 2018-10-31 | ガスエンジンの燃焼室構造 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2017253881A JP6393823B1 (ja) | 2017-12-28 | 2017-12-28 | ガスエンジンの燃焼室構造 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP6393823B1 JP6393823B1 (ja) | 2018-09-19 |
JP2019120154A true JP2019120154A (ja) | 2019-07-22 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017253881A Active JP6393823B1 (ja) | 2017-12-28 | 2017-12-28 | ガスエンジンの燃焼室構造 |
Country Status (2)
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JP (1) | JP6393823B1 (ja) |
WO (1) | WO2019130801A1 (ja) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2510406Y2 (ja) * | 1990-12-13 | 1996-09-11 | 三菱重工業株式会社 | 副室式内燃機関の燃焼室 |
JPH0521149U (ja) * | 1991-09-03 | 1993-03-19 | 三菱重工業株式会社 | 副室式内燃機関の燃焼室 |
JPH1077844A (ja) * | 1996-09-04 | 1998-03-24 | Mitsubishi Heavy Ind Ltd | 副室式内燃機関の燃焼室 |
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2017
- 2017-12-28 JP JP2017253881A patent/JP6393823B1/ja active Active
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2018
- 2018-10-31 WO PCT/JP2018/040496 patent/WO2019130801A1/ja active Application Filing
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WO2019130801A1 (ja) | 2019-07-04 |
JP6393823B1 (ja) | 2018-09-19 |
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