JP2017210962A5 - - Google Patents

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JP2017210962A5
JP2017210962A5 JP2017104187A JP2017104187A JP2017210962A5 JP 2017210962 A5 JP2017210962 A5 JP 2017210962A5 JP 2017104187 A JP2017104187 A JP 2017104187A JP 2017104187 A JP2017104187 A JP 2017104187A JP 2017210962 A5 JP2017210962 A5 JP 2017210962A5
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pump
drive
piston
drive piston
electronic control
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Priority to JP2019109270A priority Critical patent/JP6902066B2/en
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極低温燃料を圧送するための極低温ポンプ(40)であって、2つ以上のポンプ・ユニット(41、42、43)を備え、各ポンプ・ユニット(41、42、43)は、単一のポンプ・シリンダ(61)に摺動可能に配置されたポンプ・ピストン(62)、及び単一の駆動シリンダ(45)に摺動可能に配置された液圧駆動ピストン(46)を備え、前記駆動ピストン(46)は前記ポンプ・ピストン(62)を駆動するために前記ポンプ・ピストン(62)に結合されており
1つ又は複数の前記ポンプ・ユニット(41、42、43)の前記駆動シリンダ(45)への作動液の流れ及び前記駆動シリンダ(45)からの作動液の流れを制御するために、高圧作動液の供給源(20)及びタンクに接続された少なくとも1つの電子制御バルブ(24)を更に備え、
前記駆動シリンダに、関係する前記駆動シリンダ(45)中の前記駆動ピストン(46)の位置を感知するための位置センサ(56)が設けられ、
前記位置センサ(56)からの信号を受け取る電子制御ユニット(70)を更に備え、前記電子制御バルブ(24)は、前記電子制御ユニット(70)に結合され、
少なくとも1つの前記電子制御ユニット(70)は、前記ポンプ・ユニットの前記駆動シリンダを前記高圧作動液の供給源又はタンクに選択的に接続するよう構成される、
極低温ポンプ(40)。
A cryogenic pump (40) for pumping cryogenic fuel, comprising two or more pump units (41, 42, 43), each pump unit (41, 42, 43) being a single unit A pump piston (62) slidably disposed on the pump cylinder (61) of the cylinder and a hydraulically driven piston (46) slidably disposed on a single drive cylinder (45), the drive piston (46) is coupled to said pump piston (62) to drive the pump piston (62),
High pressure operation to control the flow of hydraulic fluid to and from the drive cylinder (45) of one or more of the pump units (41, 42, 43) A liquid source (20) and at least one electronic control valve (24) connected to the tank;
The drive cylinder is provided with a position sensor (56) for sensing the position of the drive piston (46) in the drive cylinder (45) concerned,
An electronic control unit (70) for receiving a signal from the position sensor (56), wherein the electronic control valve (24) is coupled to the electronic control unit (70);
At least one of the electronic control units (70) is configured to selectively connect the drive cylinder of the pump unit to a source or tank of high pressure hydraulic fluid.
Cryogenic pump (40).
記高圧作動液の供給源(20)は、可変で制御可能な圧力レベルを有する供給源である、請求項1記載の極低温ポンプ(40)。 Before SL pressure hydraulic fluid supply source (20) is a source having a controllable pressure level variable, cryogenic pump according to claim 1, wherein (40). 前記駆動シリンダ(45)は駆動室(48)及び戻し室(47)を備える、請求項1又は2記載の極低温ポンプ(40)。   The cryogenic pump (40) according to claim 1 or 2, wherein the drive cylinder (45) comprises a drive chamber (48) and a return chamber (47). 前記駆動室(48)は前記制御バルブ(24)に接続され、前記戻し室(47)は、前記高圧作動液の供給源(2)の圧力よりも低い圧力(30)である作動液の供給源に接続された、請求項3記載の極低温ポンプ(40)。 The drive chamber (48) is connected to the control valve (24), and the return chamber (47) is a hydraulic fluid having a pressure (30) lower than the pressure of the high pressure hydraulic fluid supply source (2 0 ). is connected to a source, cryogenic pump according to claim 3, wherein (40). 前記電子制御ユニット(70)は、駆動ピストンのポンプ・ストロークを、別の駆動ピストンのポンプ・ストロークが終点に近づき、終わるポンプ・ストロークと始まるポンプ・ストロークとの間に小さいオーバーラップがあるときに開始するよう構成される、請求項1〜4の何れかに記載の極低温ポンプ(40)。 The electronic control unit (70) may change the pump stroke of a drive piston when a pump stroke of another drive piston approaches the end point and there is a small overlap between the pump stroke that ends and the pump stroke that begins. Cryogenic pump (40) according to any of claims 1 to 4, configured to start. 前記電子制御ユニット(70)は、前記ポンプからの燃料又は潤滑液の実質的に一定な流れを得るために、ポンプ・ストロークが終わる際の動力及びポンプ・ストロークが始まる際の動力を計算に入れるよう構成される、請求項記載の極低温ポンプ(40)。 The electronic control unit (70) takes into account the power at the end of the pump stroke and the power at the start of the pump stroke in order to obtain a substantially constant flow of fuel or lubricant from the pump. The cryogenic pump (40) of claim 5 , wherein the cryogenic pump (40) is configured as follows. 前記電子制御ユニット(70)は、それぞれの前記駆動シリンダを実質的に連続して、小さいオーバーラップで作動させるよう構成される、請求項記載の極低温ポンプ(40)。 It said electronic control unit (70), each of said drive cylinder substantially continuously adapted to operate in a small again overlap, cryogenic pump according to claim 6, wherein (40). 前記電子制御ユニット(70)は、前記ポンプによって圧送された燃料又は潤滑液の流れの大きさが増加することに関連して、前記駆動室(48)が前記高圧作動液の供給源(20)から切り離される前記駆動ピストン(46)の位置を調整するよう構成される、請求項の何れかに記載の極低温ポンプ(40)。 In the electronic control unit (70), the driving chamber (48) is connected to the supply source (20) of the high-pressure hydraulic fluid in association with an increase in the flow of fuel or lubricating fluid pumped by the pump. Cryogenic pump (40) according to any of claims 4 to 7 , configured to adjust the position of the drive piston (46) disconnected from the pump. 前記電子制御ユニット(70)は、前記ポンプ(40)によって圧送された燃料又は潤滑液の流れが増加するとき、関係する前記駆動ピストンの前記駆動室が前記高圧液の供給源から切り離される前記駆動ピストンの位置を駆動ストロークの方向と反対方向に調整するよう構成される、請求項記載の極低温ポンプ(40)。 The electronic control unit (70) is configured such that when the flow of fuel or lubricating liquid pumped by the pump (40) increases, the drive chamber of the associated drive piston is disconnected from the high pressure liquid supply source. The cryogenic pump (40) according to claim 8 , configured to adjust the position of the piston in a direction opposite to the direction of the drive stroke. 前記電子制御ユニット(70)は、前記ポンプから前記への燃料又は潤滑液の流れが減少するとき、関係する前記駆動ピストンの前記駆動室が前記高圧液の供給源から切り離される前記駆動ピストンの位置を駆動ストロークの方向に調整するよう構成される、請求項又は記載の極低温ポンプ(40)。 The electronic control unit (70) is a position of the drive piston where the drive chamber of the drive piston concerned is disconnected from the source of high pressure liquid when the flow of fuel or lubricating liquid from the pump to the is reduced. The cryogenic pump (40) according to claim 7 or 9 , wherein the cryogenic pump (40) is adapted to adjust the direction of the drive stroke. 前記電子制御ユニット(70)は、前記ポンプ・シリンダの摩耗を軽減するために前記ポンプ・ピストンのストローク部分にわたって前記ポンプ・ピストンが逆転する位置を分散させるために、アルゴリズム、計画、又は無作為によって、駆動ピストンの位置を調整するよう構成される、請求項〜1の何れかに記載の極低温ポンプ(40)。 The electronic control unit (70) is used by an algorithm, a plan, or a random to distribute the position where the pump piston reverses over the stroke portion of the pump piston to reduce wear of the pump cylinder. The cryogenic pump (40) according to any of claims 4 to 10 , configured to adjust the position of the drive piston. 前記電子制御ユニット(70)は、前記駆動室に供給される作動液の圧力を制御することによって、前記ポンプを離れる燃料又は潤滑液の圧力を制御するよう構成される、請求項〜1の何れかに記載の極低温ポンプ(40)。 It said electronic control unit (70) by controlling the pressure of hydraulic fluid supplied to said drive chamber, configured to control the pressure of the fuel or lubricating fluid leaves the pump, according to claim 4 to 1 1 A cryogenic pump (40) according to any of the above. 電子制御ユニット(70)は、前記駆動ピストンに供給される作動液の圧力を制御するためのフィードフォワード機能において、前記ポンプを離れる燃料又は潤滑液の所望の圧力を使用するよう構成される、請求項1記載の極低温ポンプ(40)。 The electronic control unit (70) is configured to use a desired pressure of fuel or lubricating fluid leaving the pump in a feed forward function for controlling the pressure of hydraulic fluid supplied to the drive piston. claim 1 2 cryogenic pump according (40). 前記電子制御ユニット(70)は、前記駆動ピストンに供給される作動液の圧力を制御するためのフィードバック機能において、前記ポンプを離れる燃料又は潤滑液の測定された圧力を使用するよう構成される、請求項1又は1記載の極低温ポンプ(40)。 The electronic control unit (70) is configured to use the measured pressure of fuel or lubricating fluid leaving the pump in a feedback function for controlling the pressure of hydraulic fluid supplied to the drive piston. claim 1 2 or 1 3 cryogenic pump according (40). 前記電子制御ユニット(70)は、前記駆動室に供給される作動液の圧力の制御とは独立に、それぞれの前記駆動ピストン(46)の作動及び作動停止を制御するよう構成される、請求項1〜1の何れかに記載の極低温ポンプ(40)。 The electronic control unit (70) is configured to control activation and deactivation of each of the drive pistons (46) independently of controlling the pressure of hydraulic fluid supplied to the drive chamber. cryogenic pump according to any one of 1 2 to 1 4 (40). 前記電子制御ユニット(70)は、前記駆動ピストンの作動及び作動停止を制御するために、前記駆動ピストン(46)の位置を表す信号を使用するよう構成される、請求項1〜1の何れかに記載の極低温ポンプ(40)。 Said electronic control unit (70), in order to control the activation and stop of the drive piston is configured to use a signal representative of the position of the drive piston (46), of claim 1 2-1 6 The cryogenic pump (40) according to any one of the above. 燃料又は潤滑液をエンジンに供給するために請求項1〜1の何れかに記載の極低温ポンプ(40)を備えた、大型2ストローク・ターボチャージャ付き圧縮点火内燃エンジン。 A compression ignition internal combustion engine with a large two-stroke turbocharger comprising a cryogenic pump (40) according to any of claims 1 to 16 for supplying fuel or lubricating fluid to the engine. ポンプ(40)のポンプ・ピストンの作動を制御するための方法であって、前記ポンプ(40)は2つ以上のポンプ・ユニット(41、42、43)を備え、各ポンプ・ユニット(41、42、43)は、ポンプ・シリンダ(61)に摺動可能に配置されたポンプ・ピストン(62)、及び駆動シリンダ(45)に摺動可能に配置された液圧駆動ピストン(46)を備え、前記駆動ピストン(46)は前記ポンプ・ピストン(62)を駆動するために前記ポンプ・ピストン(62)に結合されており、
1つ又は複数の前記ポンプ・ユニット(41、42、43)の前記駆動シリンダ(45)への作動液の流れ及び前記駆動シリンダ(45)からの作動液の流れを制御するために、高圧作動液の供給源(20)及びタンクに接続された少なくとも1つの電子制御バルブ(24)を備え、
関係する前記駆動シリンダ(45)中の前記駆動ピストン(46)の位置を感知するための位置センサ(56)が設けられていることを特徴とし、前記方法は、
駆動ストロークのために前記電子制御バルブ(24)を備えた駆動ピストン(46)を作動させ、その後、戻りストロークのために前記電子制御バルブ(24)を備えた前記駆動ピストン(46)を作動停止することと、
前記駆動ストロークの間に前記位置センサ(56)を備えた前記駆動ピストン(46)の位置を計測することとを備え、
前記駆動ピストン(46)が戻り位置にあるときに前記駆動ピストン(46)は作動され、前記駆動ピストン(46)のスピードに依拠する位置で前記駆動ピストン(46)が作動停止される、方法。
A method for controlling the operation of a pump piston of a pump (40), said pump (40) comprising two or more pump units (41, 42, 43), each pump unit (41, 42, 43) comprises a pump piston (62) slidably disposed on the pump cylinder (61) and a hydraulic drive piston (46) slidably disposed on the drive cylinder (45). The drive piston (46) is coupled to the pump piston (62) for driving the pump piston (62);
High pressure operation to control the flow of hydraulic fluid to and from the drive cylinder (45) of one or more of the pump units (41, 42, 43) A liquid source (20) and at least one electronic control valve (24) connected to the tank;
The method is characterized in that a position sensor (56) is provided for sensing the position of the drive piston (46) in the drive cylinder (45) concerned ,
Activating the drive piston (46) with the electronic control valve (24) for the drive stroke and then deactivating the drive piston (46) with the electronic control valve (24) for the return stroke To do
Measuring the position of the drive piston (46) with the position sensor (56) during the drive stroke;
The method wherein the drive piston (46) is actuated when the drive piston (46) is in a return position and the drive piston (46) is deactivated at a position that depends on the speed of the drive piston (46).
前記駆動ストロークの間に前記駆動ピストン(46)のスピードが増加するとともに前記戻り位置に近づく位置で前記駆動ピストン(46)は作動停止され、前記駆動ストロークの間に前記駆動ピストン(46)のスピードが減少するとともに前記戻り位置から遠ざかる位置で前記駆動ピストン(46)は作動停止される、請求項18記載の方法。 The speed of the drive piston (46) increases during the drive stroke and the drive piston (46) is deactivated at a position approaching the return position, and the speed of the drive piston (46) during the drive stroke. 19. A method as claimed in claim 18 , wherein the drive piston (46) is deactivated at a position that decreases and moves away from the return position. 前記駆動ピストン(46)は、現在作動している駆動ピストン(46)が作動停止する直前に次の駆動ピストン(46)が作動するよう、実質的に連続して作動される、請求項18又は19記載の方法。 Said drive piston (46), so that the next drive piston immediately before the piston drive that is currently actuation (46) stops operation (46) is actuated, are operated substantially continuously, claim 18 Or the method of 19 . 高圧作動液を前記駆動ピストン(46)に供給することを更に備え、前記駆動ピストン(46)に供給された前記作動液の圧力を制御することによって前記ポンプ(40)を離れる燃料又は潤滑液の圧力が制御される、請求項1820の何れかに記載の方法。 And further supplying high pressure hydraulic fluid to the drive piston (46), and controlling the pressure of the hydraulic fluid supplied to the drive piston (46) to control the fuel or lubricating fluid leaving the pump (40). 21. A method according to any of claims 18 to 20 , wherein the pressure is controlled. 圧の作動液を前記駆動ピストン(46)に供給することと、
前記駆動ピストン(46)に供給される前記作動液の圧力を制御することによって、前記ポンプ(40)を離れる液の圧力を制御することと
を備える、請求項18〜21の何れかに記載の方法。
And providing to said drive piston hydraulic fluid high pressure (46),
Controlling the pressure of the fluid leaving the pump (40) by controlling the pressure of the hydraulic fluid supplied to the drive piston (46) . Method.
前記駆動ピストン(46)は、現在作動している駆動ピストン(46)が作動停止する直前に次の駆動ピストン(46)が作動するよう、実質的に連続して作動される、請求項2記載の方法。 It said drive piston (46), so that the next drive piston immediately before the piston drive that is currently actuation (46) stops operation (46) is actuated, are operated substantially continuously, claim 2 2. The method according to 2 .
JP2017104187A 2016-05-26 2017-05-26 Fuel or lubricant pump for large-sized two-stroke compression ignition internal combustion engine Pending JP2017210962A (en)

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DKPA201670361A DK179219B1 (en) 2016-05-26 2016-05-26 Fuel or lubrication pump for a large two-stroke compression-ignited internal combustion engine
DKPA201670361 2016-05-26

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