JPWO2020049040A5 - - Google Patents
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- JPWO2020049040A5 JPWO2020049040A5 JP2021509788A JP2021509788A JPWO2020049040A5 JP WO2020049040 A5 JPWO2020049040 A5 JP WO2020049040A5 JP 2021509788 A JP2021509788 A JP 2021509788A JP 2021509788 A JP2021509788 A JP 2021509788A JP WO2020049040 A5 JPWO2020049040 A5 JP WO2020049040A5
- Authority
- JP
- Japan
- Prior art keywords
- valve
- valve body
- combustion engine
- internal combustion
- rotary
- 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.)
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- 238000002485 combustion reaction Methods 0.000 claims 22
- 230000004323 axial length Effects 0.000 claims 3
- 238000007789 sealing Methods 0.000 claims 3
- 239000000567 combustion gas Substances 0.000 claims 1
- 239000012530 fluid Substances 0.000 claims 1
Claims (7)
クランクシャフトに接続され、燃焼端を有するシリンダ内を往復動するピストンと、
前記ピストン及び前記シリンダの燃焼端によって部分的に画定される燃焼室と、
前記シリンダの燃焼端の外側部分に固定され、且つボアを画定するバルブハウジングと、
前記バルブハウジングのボア内に隙間嵌めされてロータリーバルブ軸周りに回転可能な略円筒形状のロータリーバルブとを備え、
前記ロータリーバルブは、前記燃焼室の一部を形成する内部容積を有する凹状のバルブ本体を有し、
前記バルブ本体の内部容積は、燃焼行程全体を通して燃焼ガスに晒され、
前記バルブ本体は更に、その壁部において、前記バルブの回転中に前記バルブハウジングの吸気ポート及び排気ポートを介して前記燃焼室との間で逐次的に流体流通をもたらすポートを有し、
前記バルブ本体の表面と、それに隣接する前記バルブハウジングのボアの表面との間でシール機能が実現され、
前記シール機能は、動作中の前記バルブ本体の軸方向長さに沿った温度勾配によって定められる前記バルブハウジングと前記バルブ本体との間の不均一プロファイルによって実現され、これにより前記バルブ本体と前記バルブハウジングとの間で実質的に一定の隙間を前記バルブ本体の隣接する長さに亘って維持する、ロータリーバルブ内燃機関。 A rotary valve internal combustion engine,
a piston connected to the crankshaft and reciprocating within a cylinder having a combustion end;
a combustion chamber partially defined by a combustion end of the piston and the cylinder;
a valve housing secured to the outer portion of the combustion end of the cylinder and defining a bore;
a substantially cylindrical rotary valve that is loosely fitted in the bore of the valve housing and rotatable around a rotary valve shaft;
the rotary valve has a concave valve body with an internal volume forming part of the combustion chamber;
the interior volume of the valve body is exposed to combustion gases throughout the combustion stroke;
the valve body further has ports in its wall that provide sequential fluid communication with the combustion chamber through intake and exhaust ports of the valve housing during rotation of the valve;
a sealing function is achieved between the surface of the valve body and the adjacent surface of the bore of the valve housing;
The sealing function is achieved by a non-uniform profile between the valve housing and the valve body defined by a temperature gradient along the axial length of the valve body during operation, thereby A rotary valve internal combustion engine that maintains a substantially constant clearance with a housing over an adjacent length of said valve body.
前記バルブ本体は、前記バルブ本体の軸方向に沿ってテーパ状であり、前記燃焼室側の開放端部での前記バルブ本体の直径は、室温において、前記燃焼室とは反対側の端部での直径よりも小さいことにより、動作中に前記バルブ本体のプロファイルの変化に対応する、ロータリーバルブ内燃機関。 A rotary valve internal combustion engine according to claim 1,
The valve body is tapered along the axial direction of the valve body, and the diameter of the valve body at the open end on the combustion chamber side is, at room temperature, at the end opposite the combustion chamber. to accommodate changes in the profile of said valve body during operation.
前記バルブ本体は、前記バルブ本体の長さの少なくとも一部において円錐台形状である、ロータリーバルブ内燃機関。 A rotary valve internal combustion engine according to claim 1 or 2,
A rotary valve internal combustion engine, wherein the valve body is frusto-conical over at least a portion of the length of the valve body.
前記バルブは、前記バルブハウジング内において、前記バルブハウジング内の前記バルブの僅かな径方向移動を許容するように取り付けられた同軸の駆動シャフトを有し、これにより前記バルブはアクティブシールバルブとして機能する、ロータリーバルブ内燃機関。 A rotary valve internal combustion engine according to any one of claims 1 to 3 ,
The valve has a coaxial drive shaft mounted within the valve housing to allow slight radial movement of the valve within the valve housing so that the valve functions as an active sealing valve. , rotary valve internal combustion engine.
前記バルブ本体に隣接する前記バルブ駆動シャフトの端部は、前記バルブハウジング内の前記バルブの僅かな径方向移動を許容するように、より小さい直径を有する、ロータリーバルブ内燃機関。 A rotary valve internal combustion engine according to claim 4,
A rotary valve internal combustion engine, wherein the end of the valve drive shaft adjacent the valve body has a smaller diameter to allow less radial movement of the valve within the valve housing.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1814488.1 | 2018-09-06 | ||
| GB1814488.1A GB2576900B (en) | 2018-09-06 | 2018-09-06 | A rotary valve internal combustion engine |
| GB1814524.3A GB2576912A (en) | 2018-09-06 | 2018-09-06 | A rotary valve internal combustion engine |
| GB1814524.3 | 2018-09-06 | ||
| PCT/EP2019/073575 WO2020049040A1 (en) | 2018-09-06 | 2019-09-04 | A rotary valve internal combustion engine |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2021536543A JP2021536543A (en) | 2021-12-27 |
| JPWO2020049040A5 true JPWO2020049040A5 (en) | 2022-12-06 |
| JP7440493B2 JP7440493B2 (en) | 2024-02-28 |
Family
ID=67875448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021509788A Active JP7440493B2 (en) | 2018-09-06 | 2019-09-04 | rotary valve internal combustion engine |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11377982B2 (en) |
| EP (1) | EP3847346A1 (en) |
| JP (1) | JP7440493B2 (en) |
| CN (1) | CN112673153B (en) |
| GB (1) | GB2577397B (en) |
| WO (1) | WO2020049040A1 (en) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US473685A (en) * | 1892-04-26 | Gas-engine | ||
| GB103663A (en) * | 1916-01-27 | 1917-10-25 | John Good | Improvements in Internal Combustion Engine Valves. |
| DE320652C (en) | 1917-09-26 | 1920-04-27 | Telephonwerke G M B H Deutsche | Flat coil with reduced capacity for wireless telegraphy |
| GB291344A (en) * | 1927-05-30 | 1928-06-21 | Adalbert Freyler | Improvements in or relating to rotary valves for internal combustion and other engines |
| US2146528A (en) * | 1935-07-31 | 1939-02-07 | Wright Aeronautical Corp | Rotary valve |
| GB579590A (en) * | 1944-01-07 | 1946-08-08 | Briggs Mfg Co | Improvements in and relating to rotatable valves for internal combustion engines |
| GB584829A (en) * | 1944-03-20 | 1947-01-23 | Briggs Mfg Co | Improvements in and relating to rotatable valves for internal combustion engines |
| DE820652C (en) * | 1949-04-29 | 1951-11-12 | Heinrich Herrmann | Rotary valve for controlling internal combustion engines |
| GB1516092A (en) * | 1974-06-05 | 1978-06-28 | Aspin Power Ltd | Internal combustion engines |
| DE4040936A1 (en) | 1990-12-20 | 1992-06-25 | Kloeckner Humboldt Deutz Ag | Cylinder head for direct injection diesel engine - incorporates rotary slide with combustion chamber |
| DE4217608A1 (en) | 1992-05-27 | 1993-04-08 | Karl Peter Stracke | Rotary valve for IC-engine - has four-sided control port in cylindrical jacket, and internal reinforcements |
| GB2467947B (en) * | 2009-02-20 | 2013-10-09 | Rcv Engines Ltd | An internal combustion engine |
| GB2495314A (en) * | 2011-10-06 | 2013-04-10 | Rcv Engines Ltd | A rotary valve internal combustion engine |
-
2019
- 2019-09-04 CN CN201980058700.7A patent/CN112673153B/en active Active
- 2019-09-04 EP EP19765443.7A patent/EP3847346A1/en active Pending
- 2019-09-04 US US17/272,867 patent/US11377982B2/en active Active
- 2019-09-04 JP JP2021509788A patent/JP7440493B2/en active Active
- 2019-09-04 GB GB1912678.8A patent/GB2577397B/en active Active
- 2019-09-04 WO PCT/EP2019/073575 patent/WO2020049040A1/en unknown
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