JP2010007662A - 簡略化したエンジンバルブの可変駆動システムを備える内燃エンジン、特に2気筒エンジン - Google Patents
簡略化したエンジンバルブの可変駆動システムを備える内燃エンジン、特に2気筒エンジン Download PDFInfo
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- JP2010007662A JP2010007662A JP2009141046A JP2009141046A JP2010007662A JP 2010007662 A JP2010007662 A JP 2010007662A JP 2009141046 A JP2009141046 A JP 2009141046A JP 2009141046 A JP2009141046 A JP 2009141046A JP 2010007662 A JP2010007662 A JP 2010007662A
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- engine
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- pressurized fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
- F01L9/12—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem
- F01L9/14—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column with a liquid chamber between a piston actuated by a cam and a piston acting on a valve stem the volume of the chamber being variable, e.g. for varying the lift or the timing of a valve
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/26—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder
- F01L1/267—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of two or more valves operated simultaneously by same transmitting-gear; peculiar to machines or engines with more than two lift-valves per cylinder with means for varying the timing or the lift of the valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L13/00—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
- F01L13/0015—Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations for optimising engine performances by modifying valve lift according to various working parameters, e.g. rotational speed, load, torque
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/10—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic
- F01L9/11—Valve-gear or valve arrangements actuated non-mechanically by fluid means, e.g. hydraulic in which the action of a cam is being transmitted to a valve by a liquid column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/34—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift
- F01L1/344—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear
- F01L1/3442—Valve-gear or valve arrangements, e.g. lift-valve gear characterised by the provision of means for changing the timing of the valves without changing the duration of opening and without affecting the magnitude of the valve lift changing the angular relationship between crankshaft and camshaft, e.g. using helicoidal gear using hydraulic chambers with variable volume to transmit the rotating force
- F01L2001/34423—Details relating to the hydraulic feeding circuit
- F01L2001/34446—Fluid accumulators for the feeding circuit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Valve Device For Special Equipments (AREA)
- Valve-Gear Or Valve Arrangements (AREA)
Abstract
【解決手段】2つの異なるエンジンシリンダのために、2つの異なるシリンダ(C1,C2)の給気バルブに関係する2つの加圧流体チャンバ(C)の排出流路(23)との接続を制御する単一の電磁弁が想定される。
【選択図】図4
Description
各シリンダのために、それぞれ、バルブを閉鎖位置に向かって押す弾性復帰手段を備える、少なくとも1つの給気バルブおよび少なくとも1つの排気バルブと、
前記シリンダの前記給気バルブおよび前記排気バルブを、個別のタペットによって駆動する少なくとも1つのカムシャフトと、
電子制御手段とを含み、
前記給気バルブは、それぞれ前記個別のタペットによって、加圧流体チャンバを含む流体圧手段の介入により、前記弾性復帰手段の動作に反して制御され、
前記加圧流体チャンバは、前記個別のタペットのバルブ吸気口を切り離し、前記弾性復帰手段によって前記バルブの早い閉鎖を引き起こすために、電磁弁によって排出流路に接続されるように設計され、
前記電子制御手段は、それぞれの前記電磁弁を、対応する給気バルブの開口のタイミングおよびストロークを、エンジンの1以上の運転パラメータの関数として変化させるように制御する形式の多筒内燃エンジンに関する。
前記エンジンは、互いに位相がエンジンシャフトの完全な1回転ずつ異なる個別の給気工程を有する少なくとも2つの異なるシリンダを有し、
前記2つの異なるエンジンシリンダの給気バルブに連通する前記加圧流体チャンバの排出流路は、単一の共用電磁弁によって制御される。
Claims (4)
- 各シリンダに、少なくとも1つの給気バルブおよび少なくとも1つの排気バルブであって、それぞれの給気パイプ(4,5)および排気パイプ(6)を制御するために、閉鎖位置に向かって押圧する個別の弾性復帰手段(9)がそれぞれ設けられた給気バルブ(7)および排気バルブ(70)と、
前記シリンダの前記給気バルブ(7)および前記排気バルブ(70)を、それぞれのタペット(16,29)によって駆動する少なくとも1つのカムシャフト(11)とを含み、
前記給気バルブは、それぞれ対応する前記タペット(15,16)によって、前記弾性復帰手段(9)の動作に反して、加圧流体チャンバ(C)を含む流体圧手段の介入により制御され、
前記加圧流体チャンバ(C)は、前記給気バルブ(7)を対応する前記タペット(15)から切り離し、それぞれの弾性復帰手段(9)の結果として前記給気バルブ(7)の早い閉鎖をもたらすために、電磁弁(24)によって排出流路(23)に接続されるように設計されており、
それぞれの前記給気バルブ(7)のタイミングおよびストロークを、前記エンジンの1以上の運転パラメータの関数として変化させるように、それぞれの前記電磁弁24を制御する電子制御手段(25)を含む多気筒内燃エンジンであって、
互いにエンジンシャフトの略1回転だけ位相が異なるそれぞれの吸気行程を有する少なくとも2つの異なるシリンダ(C1,C2)を有し、
前記2つの異なるシリンダ(C1,C2)の前記給気バルブ(7)に関係する前記加圧流体チャンバ(C)の排出流路(23)との連通は、単一の共用電磁弁(24)によって制御されることを特徴とするエンジン。 - 加圧流体を供給するために、前記エンジンの前記2つの異なるシリンダ(C1,C2)の前記給気バルブ(7)に関係する前記加圧流体チャンバ(C)と、前記加圧流体チャンバ(C)の方向にだけ流体の通過を可能にする個別の第1逆止弁(V1)を介して連通する主流路(50)が設けられたエンジンであって、
前記エンジンの前記2つの異なるシリンダ(C1,C2)の前記給気バルブに関係する前記加圧流体チャンバ(C)は、互いにバイパス流路(44)によって、前記2つの加圧流体チャンバ(C)のそれぞれから前記バイパス流路(44)に向かってのみ流体の通過を可能にする2つの個別の第2逆止弁(V2)を介して接続され、
前記バイパス流路(44)は、前記単一の共用電磁弁(24)を介して、前記2つの加圧流体チャンバ(C)に共用される前記排出流路(23)と連通することになるように設計されていることを特徴とする請求項1に記載のエンジン。 - 共用される前記排出流路(23)と連通する単一の共用流体アクチュエータ(27)が、前記エンジンの前記2つの異なるシリンダ(C1,C2)の前記給気バルブに関係する2つの加圧流体チャンバ(C)に結合されていることを特徴とする請求項2に記載のエンジン。
- 頂部で大気開放され、加圧された流体を受け入れるためにその頂部に流入口(40a)と、その底部に前記第1逆止弁(V1)を介して前記加圧流体タンク(C)と接続された流出口(40b)とを有する、少なくとも1つの流体タンク(40)が、加圧流体の供給のための前記主流路(50)の中に介設されたエンジンであって、
前記流体タンク(40)は、さらにその底部に、共用される前記排出流路(23)と連通する流出口を有することを特徴とする請求項2に記載のエンジン。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP08425451A EP2138680B1 (en) | 2008-06-25 | 2008-06-25 | Internal combustion engine, in particular a two-cylinder engine, provided with a simplified system for variable actuation of the engine valves |
EP08425451.5 | 2008-06-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010007662A true JP2010007662A (ja) | 2010-01-14 |
JP5091917B2 JP5091917B2 (ja) | 2012-12-05 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009141046A Expired - Fee Related JP5091917B2 (ja) | 2008-06-25 | 2009-06-12 | 簡略化したエンジンバルブの可変駆動システムを備える内燃エンジン、特に2気筒エンジン |
Country Status (5)
Country | Link |
---|---|
US (1) | US8079331B2 (ja) |
EP (1) | EP2138680B1 (ja) |
JP (1) | JP5091917B2 (ja) |
AT (1) | ATE483893T1 (ja) |
DE (1) | DE602008002915D1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012225340A (ja) * | 2011-04-14 | 2012-11-15 | Crf Soc Consortile Per Azioni | 改良ソレノイドバルブを備えた吸気バルブの可変駆動システムを有する内燃エンジン、および同エンジン用ソレノイドバルブ |
JP2015001226A (ja) * | 2013-06-17 | 2015-01-05 | 現代自動車株式会社 | 車両の可変バルブ駆動装置 |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2397674B1 (en) | 2010-06-18 | 2012-10-24 | C.R.F. Società Consortile per Azioni | Internal combustion engine with cylinders that can be de-activated, with exhaust gas recirculation by variable control of the intake valves, and method for controlling an internal combustion engine |
KR101272942B1 (ko) * | 2011-09-30 | 2013-06-11 | 현대자동차주식회사 | 가변밸브 장치 |
EP2597276B1 (en) * | 2011-11-24 | 2014-04-16 | C.R.F. Società Consortile per Azioni | Internal combustion engine having a system for variable actuation of the intake valves, provided with a three-way solenoid valve |
EP2653703B1 (en) | 2012-04-19 | 2014-04-30 | C.R.F. Società Consortile per Azioni | Internal combustion engine with cylinders which can be deactivated, in which the deactivated cylinders are used as pumps for recirculating exhaust gases into the active cylinders, and method for controlling this engine |
EP2693009B1 (en) * | 2012-07-31 | 2014-12-10 | C.R.F. Società Consortile per Azioni | Internal-combustion engine having a system for variable actuation of the intake valves, provided with three-way solenoid valves, and method for controlling said engine |
EP3032054B1 (en) * | 2014-12-10 | 2017-03-29 | C.R.F. Società Consortile per Azioni | Internal combustion engine with an electronically controlled hydraulic system for variable actuation of the intake valves, provided with a device for refilling the system with fluid |
DE102016205910A1 (de) | 2016-04-08 | 2017-10-12 | Mtu Friedrichshafen Gmbh | Ventiltrieb zur variablen Ansteuerung eines Einlassventils und eines Auslassventils und Brennkraftmaschine mit einem solchen Ventiltrieb |
DE102016214760B4 (de) | 2016-04-28 | 2018-03-01 | Mtu Friedrichshafen Gmbh | Verfahren zum Betrieb einer Brennkraftmaschine, Einrichtung zum Steuern und/oder Regeln einer Brennkraftmaschine, Einspritzsystem und Brennkraftmaschine |
DE102016219297B4 (de) | 2016-10-05 | 2021-12-30 | Schaeffler Technologies AG & Co. KG | Hydraulikeinheit für eine Brennkraftmaschine mit hydraulisch variablem Gaswechselventiltrieb |
DE102018129287A1 (de) * | 2018-11-21 | 2020-05-28 | Schaeffler Technologies AG & Co. KG | Verbrennungsmotor mit hydraulisch variablem Gaswechselventiltrieb |
EP3832078B1 (en) * | 2019-12-02 | 2022-07-27 | C.R.F. Società Consortile per Azioni | System and method for variable actuation of valves of an internal combustion engine |
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JPH05340219A (ja) * | 1992-03-04 | 1993-12-21 | Robert Bosch Gmbh | エンジンバルブに用いられるハイドロリック式の弁制御装置 |
JPH07208132A (ja) * | 1994-01-25 | 1995-08-08 | Toyota Motor Corp | 内燃機関の動弁装置 |
EP1555398B1 (en) * | 2004-01-16 | 2007-02-28 | C.R.F. Società Consortile per Azioni | Internal combustion engine having a single camshaft which controls the exhaust valves mechanically, and the intake valves through an electronically controlled hydraulic device |
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US4615306A (en) * | 1984-01-30 | 1986-10-07 | Allied Corporation | Engine valve timing control system |
DE3604233A1 (de) * | 1986-02-11 | 1987-08-13 | Bosch Gmbh Robert | Ventilsteuervorrichtung fuer eine hubkolben-brennkraftmaschine |
US5503120A (en) * | 1995-01-18 | 1996-04-02 | Siemens Automotive Corporation | Engine valve timing control system and method |
IT1285853B1 (it) | 1996-04-24 | 1998-06-24 | Fiat Ricerche | Motore a combustione interna con valvole ad azionamento variabile. |
ITTO20010269A1 (it) | 2001-03-23 | 2002-09-23 | Fiat Ricerche | Motore a combustione interna, con sistema idraulico di azionamento variabile delle valvole, e mezzi di compensazione delle variazioni di vol |
ITTO20020234A1 (it) | 2002-03-15 | 2003-09-15 | Fiat Ricerche | Motore pluricilindrico a combustione interna con dispositivo idraulico a controllo elettronico per l'azionamento variabile delle valvole e d |
-
2008
- 2008-06-25 EP EP08425451A patent/EP2138680B1/en active Active
- 2008-06-25 AT AT08425451T patent/ATE483893T1/de not_active IP Right Cessation
- 2008-06-25 DE DE602008002915T patent/DE602008002915D1/de active Active
-
2009
- 2009-05-04 US US12/434,922 patent/US8079331B2/en active Active
- 2009-06-12 JP JP2009141046A patent/JP5091917B2/ja not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05340219A (ja) * | 1992-03-04 | 1993-12-21 | Robert Bosch Gmbh | エンジンバルブに用いられるハイドロリック式の弁制御装置 |
JPH07208132A (ja) * | 1994-01-25 | 1995-08-08 | Toyota Motor Corp | 内燃機関の動弁装置 |
EP1555398B1 (en) * | 2004-01-16 | 2007-02-28 | C.R.F. Società Consortile per Azioni | Internal combustion engine having a single camshaft which controls the exhaust valves mechanically, and the intake valves through an electronically controlled hydraulic device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2012225340A (ja) * | 2011-04-14 | 2012-11-15 | Crf Soc Consortile Per Azioni | 改良ソレノイドバルブを備えた吸気バルブの可変駆動システムを有する内燃エンジン、および同エンジン用ソレノイドバルブ |
JP2015001226A (ja) * | 2013-06-17 | 2015-01-05 | 現代自動車株式会社 | 車両の可変バルブ駆動装置 |
Also Published As
Publication number | Publication date |
---|---|
DE602008002915D1 (de) | 2010-11-18 |
EP2138680A1 (en) | 2009-12-30 |
US20090320776A1 (en) | 2009-12-31 |
EP2138680B1 (en) | 2010-10-06 |
ATE483893T1 (de) | 2010-10-15 |
JP5091917B2 (ja) | 2012-12-05 |
US8079331B2 (en) | 2011-12-20 |
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LAPS | Cancellation because of no payment of annual fees |