JP2016217346A - 大型ディーゼル機関を運転する方法、この方法の使用、及び大型ディーゼル機関 - Google Patents
大型ディーゼル機関を運転する方法、この方法の使用、及び大型ディーゼル機関 Download PDFInfo
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Abstract
【解決手段】ガスが燃料としてシリンダ21内に導入され、引き続いて出口弁24を介して燃焼が追い出される少なくとも1つのガス・モードで運転することができる大型ディーゼル機関の運転方法であって、ガス・モードでの運転10の間、負荷の強い変化の状態が検出され13、次いで大型ディーゼル機関が一時モードで運転され、この一時モードが、ガス・モードにおける出口弁の閉鎖のためのドエル角を確立するステップと、そのドエル角のための修正値を決定するステップ14と、ドエル角を修正値に関連付けることによって一時ドエル角を決定するステップ14と、一時ドエル角で出口弁を閉じるステップ15とを含む、運転方法が提案される。さらに、そのような方法に従って運転される大型ディーゼル機関が提案される。
【選択図】図3
Description
ガス・モードにおける出口弁の閉鎖のためのドエル角を決定するステップと、
そのドエル角のための修正値を決定するステップと、
ドエル角を修正値に関連付けることによって一時ドエル角を決定するステップと、
一時ドエル角で出口弁を閉じるステップと
を含む、大型ディーゼル機関を運転する方法が提案される。
機関の回転速度のための望ましい値、又は機関のトルクの望ましい値を特定するステップと、
大型ディーゼル機関のワーク・サイクル毎に、燃料として利用することができるガスの量の上側の閾値を決定するステップと、
ガスに加えて導入される液体燃料の追加量を決定するステップであって、この追加量は、所望の値の回転速度が実現されるような大きさとされるステップと
を含む。一時モードにおけるガスの量の制限は、特に出口弁のためのドエル角の変更と相俟って、シリンダ内の空気−ガス混合物の組成を、理想的な燃焼プロセスが有効な方法で保証されるその境界内に維持することができるという、さらに好ましい手段を提示する。
Claims (15)
- ガスが燃料としてシリンダ(21)内に導入され、引き続いて出口弁(24)を介して燃焼が追い出される少なくとも1つのガス・モードで運転することができる大型ディーゼル機関を運転する方法であって、
前記ガス・モード(10)での運転の間、負荷の強い変化の状態が検出され(13)、次いで前記大型ディーゼル機関は一時モードで運転され、前記一時モードが、
前記ガス・モードにおける前記出口弁の閉鎖のためのドエル角を確立するステップと、
前記ドエル角のための修正値を決定するステップ(14)と、
前記ドエル角を前記修正値に関連付けることによって一時ドエル角を決定するステップ(14)と、
前記一時ドエル角で前記出口弁を閉じるステップ(15)と
を含む、大型ディーゼル機関を運転する方法。 - 前記大型ディーゼル機関(20)が、ガスの燃焼のため、及び液体燃料、特にディーゼル又は重燃料油の燃焼のための二元燃料機関として構成される、請求項1に記載の方法。
- 前記一時ドエル角を決定するために前記修正値が前記ドエル角に加えられる、請求項1又は2に記載の方法。
- 前記修正値が負であり、その大きさが最大で60度である、請求項1から3までのいずれか一項に記載の方法。
- 前記修正値が正であり、最大で60度である、請求項1から4までのいずれか一項に記載の方法。
- 前記一時モードが、
前記機関の回転速度のための望ましい値、又は前記機関のトルクの望ましい値を決定するステップと、
前記大型ディーゼル機関のワーク・サイクル毎に、燃料として利用できるガスの量の上側の閾値を決定するステップ(14)と、
前記ガスに加えて燃焼空間内に導入される液体燃料の追加量を決定するステップ(14)であって、前記追加量は、所望の値の前記回転速度が実現されるような大きさとされるステップと
を含む、請求項1から5までのいずれか一項に記載の方法。 - 前記ガスの量の前記上側の閾値又は前記修正値の決定(14)のために、掃気空気のそれぞれ現在利用可能な圧力が誘導される、請求項1から6までのいずれか一項に記載の方法。
- 前記一時モードが手動で開始される、請求項1から7までのいずれか一項に記載の方法。
- 前記一時モードが、前記掃気空気の現在の圧力、シリンダ圧力、計算された空気−ガス比、ノッキング検出器の信号、前記機関の前記負荷に対する前記回転速度の比、前記機関の前記負荷に対する前記回転速度の前記比の変化、前記機関のトルク、前記トルクの変化、注入のために必要な前記燃料の量、及び前記注入のために必要な燃料の前記量の変化のうちの少なくとも1つのパラメータに応じて開始される、請求項1から8までのいずれか一項に記載の方法。
- 前記シリンダ(21)内への前記ガスの供給がシリンダ・ライナを介して生じる、請求項1から9までのいずれか一項に記載の方法。
- 前記掃気空気が前記シリンダ(21)に導入される前に、又は前記掃気空気が前記シリンダ(21)に導入されるときに、前記ガスが前記掃気空気に供給される、請求項1から10までのいずれか一項に記載の方法。
- 少なくとも1つのガス・モード(10)で運転することができる大型ディーゼル機関であって、請求項1から11までのいずれか一項に記載の方法に従って運転される大型ディーゼル機関。
- ガスの燃焼のため、及び液体燃料、特にディーゼル又は重燃料油の燃焼のための二元燃料機関として構成される、請求項12に記載の大型ディーゼル機関。
- 前記一時モードを開始及び実施するための制御装置(14)を有する機関制御が提供される、請求項12又は13の一項に記載の大型ディーゼル機関。
- 大型ディーゼル機関、特に二元燃料機関を改修するための、請求項1から11までのいずれか一項による方法の使用。
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DK3404237T3 (da) * | 2017-05-15 | 2021-04-26 | Winterthur Gas & Diesel Ag | Fremgangsmåde til drift af en stor dieselmotor samt stor dieselmotor |
CN109339943B (zh) * | 2018-09-01 | 2021-04-20 | 哈尔滨工程大学 | 一种带有滚流燃烧室的天然气缸内直喷双燃料发动机燃烧系统 |
EP3748144A1 (de) * | 2019-06-03 | 2020-12-09 | Winterthur Gas & Diesel AG | Verfahren zum betreiben eines grossmotors sowie grossmotor |
DK180308B1 (en) * | 2019-06-13 | 2020-10-28 | Man Energy Solutions Filial Af Man Energy Solutions Se Tyskland | A large two-stroke uniflow scavenged gaseous fueled engine and method for controlling conditions in combustion chamber |
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