JP2018532951A - 対向ピストンエンジン用のコンパクトなポート付きシリンダ構造 - Google Patents
対向ピストンエンジン用のコンパクトなポート付きシリンダ構造 Download PDFInfo
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- JP2018532951A JP2018532951A JP2018542679A JP2018542679A JP2018532951A JP 2018532951 A JP2018532951 A JP 2018532951A JP 2018542679 A JP2018542679 A JP 2018542679A JP 2018542679 A JP2018542679 A JP 2018542679A JP 2018532951 A JP2018532951 A JP 2018532951A
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- piston
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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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
- F02B25/02—Engines characterised by using fresh charge for scavenging cylinders using unidirectional scavenging
- F02B25/08—Engines with oppositely-moving reciprocating working pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
- F01B7/14—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons acting on different main shafts
-
- 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
- F02B75/00—Other engines
- F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F02B75/282—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders the pistons having equal strokes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/18—Other cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F1/00—Cylinders; Cylinder heads
- F02F1/24—Cylinder heads
- F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
- F02F1/4285—Shape or arrangement of intake or exhaust channels in cylinder heads of both intake and exhaust channel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B7/00—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
- F01B7/02—Machines or engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders with oppositely reciprocating pistons
-
- 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
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/025—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle two
-
- 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
- F02B25/00—Engines characterised by using fresh charge for scavenging cylinders
-
- 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
- F02B75/00—Other engines
- F02B75/28—Engines with two or more pistons reciprocating within same cylinder or within essentially coaxial cylinders
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
この国際出願は、2015年11月4日に出願された米国特許出願第14/932,002号に対する優先権を主張する。
Claims (9)
- 2ストローク対向ピストンのピストンとシリンダの組合せ体であって、
長手方向軸(AL)を有するボア(12)を提供するシリンダ(11)であって、前記シリンダが、前記シリンダの中央部分(17)のそれぞれの側部に長手方向軸に沿って配置された離間した排気ポート(14)と吸気ポート(16)とを含み、前記排気ポートが前記長手方向軸に直交する環状形状を有し、内縁部(30)と外縁部(32)とを含み、前記内縁部と前記外縁部がその間にポート高さ(HP)を与える、シリンダ(11)と、
前記ボア内に対向して位置する第1のピストン(20)および第2のピストン(22)であって、前記第1のピストン(20)が前記排気ポートを開閉するために配置され、前記第2のピストン(22)が前記吸気ポートを開閉するために配置され、前記第1のピストンおよび前記第2のピストンは、周縁部(20p、22p)と、上部リングパック(20r、22r)と、下部リングパック(20o、22o)とを含み、前記上部リングパックおよび前記下部リングパックはその間に分離距離SRを与え、前記第1のピストンおよび前記第2のピストンの各々は前記ボア内の上死点(TDC)位置と下死点(BDC)位置との間を往復運動可能である、第1のピストン(20)および第2のピストン(22)と、を備え、
排気ポート高さ(H´P)は、前記第1のピストン(20)がその前記TDC位置に達するときに、前記排気ポート(14)が前記上部リングパック(20r)と前記下部リングパック(20o)との間にあり、前記下部リングパックが前記排気ポートの前記外縁部(32)の近傍にあるようになっており、
前記第1のピストンがBDC位置に達する前に前記排気ポートが完全に開くことを特徴とする、ピストンとシリンダの組合せ体。 - 前記第1のピストンが前記BDC位置に達するときに、前記第1のピストン(20)の前記周縁部(20p)が前記排気ポートの前記外縁部(32)のアウトボードに離間する、請求項1に記載のピストンとシリンダの組合せ体。
- 請求項2に記載のピストンとシリンダの組合せ体であって、
前記第1のピストンの前記TDC位置から前記BDC位置への移動は、0°〜180°のエンジンクランクシャフト回転を含む膨張行程を与え、前記膨張行程に続く前記第1のピストンの前記BDC位置から前記TDC位置への移動は、180°〜360°の前記エンジンクランクシャフト回転を含む圧縮行程を与え、
排気ポート高さによって、前記クランクシャフト回転の約130°〜約225°の範囲で前記排気ポートが完全に開いたままになる、ピストンとシリンダの組合せ体。 - 前記排気ポートは、前記シリンダの第1の対応する円周に沿って環状配列に配置された複数のポート開口部を含む、請求項2に記載のピストンとシリンダの組合せ体。
- 前記吸気ポートは、前記シリンダの第2の対応する円周に沿って環状配列に配置された複数のポート開口部を含む、請求項4に記載のピストンとシリンダの組合せ体。
- 請求項5に記載のピストンとシリンダの組合せ体であって、
第1のピストンの前記TDC位置から前記BDC位置への移動は、0°〜180°の第1のエンジンクランクシャフト回転を含む膨張行程を与え、前記膨張行程に続く前記第1のピストンの前記BDC位置から前記TDC位置への移動は、180°〜360°の前記第1のエンジンクランクシャフト回転を含む圧縮行程を与え、
排気ポート高さによって、前記第1のクランクシャフト回転の約135°〜約225°の範囲で前記排気ポートが完全に開いたままになる、ピストンとシリンダの組合せ体。 - 上部および下部リングパックが少なくとも2つのピストンリングを各々含む、請求項6に記載のピストンとシリンダの組み合わせ。
- 上部リングパックが少なくとも圧縮リングを備え、下部リングパックが少なくともオイルスクレーパリングを備える、請求項6に記載のピストンとシリンダの組合せ体。
- 請求項1〜8のいずれか一項に記載の1つ以上のピストンとシリンダの組み合わせを備える2ストローク対向ピストンエンジン。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/932,002 US10422272B2 (en) | 2015-11-04 | 2015-11-04 | Compact ported cylinder construction for an opposed-piston engine |
US14/932,002 | 2015-11-04 | ||
PCT/US2016/058777 WO2017078998A1 (en) | 2015-11-04 | 2016-10-26 | Compact ported cylinder construction for an opposed-piston engine |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2018532951A true JP2018532951A (ja) | 2018-11-08 |
Family
ID=57249905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2018542679A Pending JP2018532951A (ja) | 2015-11-04 | 2016-10-26 | 対向ピストンエンジン用のコンパクトなポート付きシリンダ構造 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10422272B2 (ja) |
EP (1) | EP3371434A1 (ja) |
JP (1) | JP2018532951A (ja) |
CN (1) | CN108350803B (ja) |
WO (1) | WO2017078998A1 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018174850A1 (en) * | 2017-03-20 | 2018-09-27 | Volvo Truck Corporation | Opposed piston engine with offset inlet and exhaust crankshafts |
US10989136B2 (en) * | 2018-11-13 | 2021-04-27 | Achates Power, Inc. | Parent bore cylinder block of an opposed-piston engine |
CN110529246A (zh) * | 2019-01-11 | 2019-12-03 | 李正宇 | 串列双缸二冲程发动机 |
US11415075B2 (en) | 2019-07-08 | 2022-08-16 | Cummins Inc. | Port shapes for enhanced engine breathing |
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US2170020A (en) | 1936-09-30 | 1939-08-22 | Messerschmitt Boelkow Blohm | Internal combustion engine |
US2393085A (en) | 1944-08-25 | 1946-01-15 | William L Wuehr | Internal-combustion engine |
US2624328A (en) | 1949-10-21 | 1953-01-06 | Standard Motor Co Ltd | Internal-combustion engine |
US2925073A (en) | 1956-12-17 | 1960-02-16 | Ford Motor Co | Free piston engine |
ES286046A1 (es) | 1962-03-16 | 1963-08-16 | Ag Brown Boveri & Cie | Procedimiento para adaptar el valor paso-tiempo del escape anticipado de la fase de barrido y, eventualmente, del escape retardado de un motor de combustión de dos tiempos |
US3866581A (en) | 1973-09-10 | 1975-02-18 | William B Herbert | Opposed piston engine |
US4480597A (en) * | 1979-04-20 | 1984-11-06 | Toyota Jidosha Kobyo Kabushiki Kaisha | Two-stroke cycle gasoline engine |
US5213067A (en) | 1991-12-19 | 1993-05-25 | Kramer Louis E | Internal combustion engine |
DE4335515C2 (de) | 1993-10-19 | 1996-07-04 | Otto C Pulch | Gegenkolben-Zweitakt-Verbrennungsmotor mit Fremdzündung, Kraftstoff-Direkteinspritzung in den Zylinder und Schichtladung |
JP3824832B2 (ja) | 2000-02-10 | 2006-09-20 | 本田技研工業株式会社 | 内燃機関のシリンダヘッド |
AU2003222032A1 (en) * | 2002-03-15 | 2003-09-29 | Advanced Propulsion Technologies, Inc. | Internal combustion engine |
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WO2009061873A2 (en) | 2007-11-08 | 2009-05-14 | Two Heads Llc | Monoblock valveless opposing piston internal combustion engine |
US20100024759A1 (en) * | 2008-07-31 | 2010-02-04 | Dobransky Gary E | Two-stroke engine |
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AU2011212150B2 (en) * | 2010-02-03 | 2016-12-01 | Hotchkiss Super Deltic Ltd. | Two-stage engine exhaust system |
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US8935998B1 (en) | 2013-09-16 | 2015-01-20 | Achates Power, Inc. | Compac, ported cylinder construction for an opposed-piston engine |
-
2015
- 2015-11-04 US US14/932,002 patent/US10422272B2/en active Active
-
2016
- 2016-10-26 CN CN201680063857.5A patent/CN108350803B/zh active Active
- 2016-10-26 EP EP16791759.0A patent/EP3371434A1/en not_active Withdrawn
- 2016-10-26 WO PCT/US2016/058777 patent/WO2017078998A1/en active Application Filing
- 2016-10-26 JP JP2018542679A patent/JP2018532951A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP3371434A1 (en) | 2018-09-12 |
CN108350803A (zh) | 2018-07-31 |
CN108350803B (zh) | 2020-09-11 |
US20170122185A1 (en) | 2017-05-04 |
WO2017078998A1 (en) | 2017-05-11 |
US10422272B2 (en) | 2019-09-24 |
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