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1. 发明公开

EP1328713A1 METHOD AND APPARATUS FOR PRE-PILOT FUEL INJECTION IN DIESEL INTERNAL COMBUSTION ENGINES 审中-公开
标题翻译：方法和装置PREPILOTEINSPRITZUNG柴油发动机
公开(公告)号：EP1328713A1
公开(公告)日：2003-07-23
申请号：EP01959343.3
申请日：2001-07-30
申请人： International Engine Intellectual Property Company, LLC.
发明人： ZUKOUSKI, Russell, P. , GUI, Xinqun
IPC分类号： F02B3/00 , F02M37/04
CPC分类号： F02B3/10 , F02B3/06 , F02D41/402 , F02D41/403 , Y02T10/44
摘要： A method and apparatus for injecting fuel into a diesel engine combustion chamber is provided wherein a pre-pilot injection (225) is injected sufficiently prior to critical mass conditions being achievable to permit vaporization and formation of a substantially homogenous mixture before a critical mass exist. Preferably, a pilot injection (215) is injected after the pre-pilot injection (225) but at or before a point wherein a critical mass based on the pre-pilot (225) quantity is attained. This will result in a reduced heat release rate which in turn will result in a slower, smoother and more controlled build-up of pressure in the combustion chamber and thereby advantageously reduce combustion noise.

2. 发明公开

EP1216347A1 METHOD FOR CONTROLLING A COMBUSTION PROCESS IN A COMBUSTION ENGINE 有权
标题翻译：方法控制燃烧过程在内燃发动机
公开(公告)号：EP1216347A1
公开(公告)日：2002-06-26
申请号：EP00968276.6
申请日：2000-09-29
申请人： AB VOLVO
发明人： HÖGLUND, Anders , SÄRNBRATT, Ulla , MAGNUSSON, Ingemar , EISMARK, Jan
IPC分类号： F02B3/00
CPC分类号： F02B23/0645 , F02B1/12 , F02B3/06 , F02B23/0639 , F02B23/0672 , F02B2275/14 , F02D41/0057 , F02D41/3035 , F02D41/40 , F02D41/405 , F02D2041/3052 , F02D2250/31 , F02D2250/36 , F02M45/12 , Y02T10/123 , Y02T10/125 , Y02T10/44
摘要： Invention which, by means of spray-controlled, directly injected combustion with the aid of step-by-step technical development of the whole of the combustion system, achieves an intensified mixing process during injection and after-burning, which speeds up soot oxidation during various stages so effectively that the engine can be run with sufficiently high EGR content for desired NOx and soot content down to ultra-low emissions, at the same time as parameters which control the efficiency are decoupled from measures for desired emission level, thereby enabling optimum efficiency to be attained for the process.

3. 发明公开

EP1203143A1 DUAL-FUEL CONTROL/MONITORING SYSTEM 审中-公开
标题翻译：规则监控系统，两种燃料
公开(公告)号：EP1203143A1
公开(公告)日：2002-05-08
申请号：EP00960148.5
申请日：2000-07-13
申请人： ITG Innovative Technology Group Corporation
发明人： HUBER, Jeffrey, Thomas
IPC分类号： F02B3/00
CPC分类号： F02D19/0631 , F02B7/06 , F02B2201/064 , F02D19/0607 , F02D19/0628 , F02D19/105 , Y02T10/36
摘要： A control box (11) for a dual-fuel internal-combustion engine (6) is actuated automatically by an oil-pressure switch (16) when activated by a manual switch (30) that directs power from a battery (29) or other engine-electrical component to a current distributor such as a 24-volt bus (49) for operating control-box components that include an under-current sensor (36) for preventing use of gaseous fuel in addition to liquid fuel under no-load and low-load conditions, an over-current sensor (39) for preventing use of gaseous fuel in addition to liquid fuel under excessive-load conditions, an intake-air sensor (17) for preventing use of gaseous fuel with liquid fuel when there is inadequate supply of air, a liquid-fuel-supply sensor (22) for preventing use of gaseous fuel with liquid fuel when there is inadequate supply of liquid fuel, and an exhaust-gas-temperature monitor (23) for shutting down dual-fuel mode when exhaust heat is excessive.

4. 发明授权

EP0159320B1 INTERNAL COMBUSTION ENGINE AND OPERATING CYCLE THEREFOR 失效
标题翻译：内燃机及其运行周期
公开(公告)号：EP0159320B1
公开(公告)日：1990-12-27
申请号：EP84902117.5
申请日：1984-04-27
申请人： GERACE, Anthony
发明人： GERACE, Anthony
IPC分类号： F02B1/00 , F02B3/00 , F02B11/00 , F02B37/00 , F02B41/00 , F02B57/08
CPC分类号： F02C6/12 , F01B3/0005 , F01B3/045 , F02B1/12 , F02B3/06 , F02B41/04 , F02B47/02 , F02B75/04 , F02B75/26 , F02B75/28 , F02B2075/025 , F02F7/0087 , F05D2230/50 , F05D2230/53
摘要： An internal combustion engine and method therefor includes a plurality of cylinders (CYL1...n) arranged parallel to and equally spaced from a longitudinally extending engine axis (LA) with a pair of opposed pistons (P1, P2) mounted in each cylinder for controlled reciprocation therein. Respective rotatably mounted axial-faced cams (C1, C2) and connected followers control the motion of the pistons through the operating cycle to permit at least one and preferably more power strokes from each cylinder during each rotation of the engine. A controllable divider valve (DV) is located between the opposed faces of the pistons to define, on the one side, a first air/fuel receiving compression chamber and, on the other side, a second relatively high-pressure ignition air receiving chamber. Before the cam-controlled compression stroke, the divider valve (DV) is closed so that the air/fuel mixture on the one side of the closed valve is compressed to a first pressure and the ignition air on the other side of the divider valve (DV) is compressed to a relatively higher pressure to cause the temperature of this more highly compressed air to increase to a temperature above the ignition temperature of the compressed air/fuel mixture. Ignition is caused by opening the divider valve (DV) to permit the high-pressure, high-temperature ignition air in the second chamber to enter the compressed air/fuel mixture in the first chamber and to cause burning thereof.

5. 发明公开

EP0004141A1 Diesel engine and piston assembly therefor 无效
标题翻译： Kolbenring-Bestückungbei Dieselmotor。
公开(公告)号：EP0004141A1
公开(公告)日：1979-09-19
申请号：EP79300261.9
申请日：1979-02-21
申请人： INTERNATIONAL HARVESTER COMPANY
发明人： McCandless, James C.
IPC分类号： F02B3/00 , F16J9/00
CPC分类号： F16J9/00 , F02B3/06 , F02B53/06
摘要： An automotive diesel engine is provided with pistons (21) each of which carries two compression rings (25-27) and an oil control ring. The cold end clearance of the lower compression ring (27) is at least three times greater than the cold end clearance of the top compression ring (25). The annulus defined by the second land (32) of the piston (21), the two compression rings (25-27) and the engine cylinder wall (11) has an empirically determined volume (35) which is within the range of about 0.12 cubic inches (0.00196 litre) to about 0.35 cubic inches (0.00574 litre). The top land (31) of the piston is set back to provide exaggerated diametral clearance from the cylinder wall.
摘要翻译：汽车柴油发动机提供有活塞（21），每个活塞承载两个压缩环（25-27）和油控制环。下压缩环（27）的冷端间隙比顶部压缩环（25）的冷端间隙至少高三倍。由活塞（21）的第二台（32），两个压缩环（25-27）和发动机气缸壁（11）限定的环形空间具有经验确定的体积（35），该体积（T）在约0.12 立方英寸（0.00196升）至约0.35立方英寸（0.00574升）。将活塞的顶部区域（31）放回来，从气缸壁提供夸张的直径间隙。

6. 发明公开

EP4048876A1 GROOVED INJECTOR NOZZLE COMBUSTION SHIELD 审中-实审
公开(公告)号：EP4048876A1
公开(公告)日：2022-08-31
申请号：EP20897211.7
申请日：2020-12-02
申请人： Cummins, Inc.
发明人： HAHN, Thomas O. , JOHNSON, Terry L. , IBRAHIM, Aamir , AHMED, Raheel , WORTHINGTON, Joseph A. , MAHATO, Chandan
IPC分类号： F02B3/00 , F02F11/00 , F02M53/04 , F02M53/06 , F02M61/10 , F02M61/14

7. 发明公开

EP1363001A3 Air and fuel supply system for combustion engine 有权
标题翻译：空气和燃料供应系统的内燃机
公开(公告)号：EP1363001A3
公开(公告)日：2005-09-14
申请号：EP03006344.0
申请日：2003-03-20
申请人： CATERPILLAR INC.
发明人： Leman, Scott A. , Weber, James R.
IPC分类号： F02D13/02 , F02B37/00 , F02B3/00
CPC分类号： F02D13/0269 , F01L13/0015 , F01L2001/0535 , F01N3/025 , F01N3/027 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/0842 , F01N3/20 , F01N13/009 , F01N13/10 , F01N2250/02 , F01N2430/085 , F01N2570/14 , F02B3/06 , F02B29/0412 , F02B37/00 , F02B37/004 , F02B37/013 , F02B37/02 , F02B2075/1824 , F02B2275/14 , F02B2275/32 , F02D13/0203 , F02D13/0226 , F02D13/0253 , F02D15/04 , F02D19/024 , F02D41/0007 , F02D41/403 , F02D2041/001 , F02M21/0275 , F02M26/01 , F02M26/08 , F02M26/15 , F02M26/21 , F02M26/23 , F02M45/04 , F02M57/023 , F02M59/366 , Y02T10/123 , Y02T10/142 , Y02T10/144 , Y02T10/146 , Y02T10/44
摘要： A method of operating an internal combustion engine (110), including at least one cylinder (112) and a piston (212) slidable in the cylinder, may include supplying pressurized air from an intake manifold (114) to an air intake port (208) of a combustion chamber (206) in the cylinder, selectively operating an air intake valve (214) to open the air intake port to allow pressurized air to flow between the combustion chamber and the intake manifold substantially during a majority portion of a compression stroke of the piston, and operably controlling a fuel supply system (202) to inject fuel into the combustion chamber after the intake valve is closed.

8. 发明公开

EP1216346A1 METHOD OF CONTROLLING THE FUEL INJECTION IN AN INTERNAL COMBUSTION ENGINE 有权
标题翻译：方法控制燃油喷射在内燃发动机
公开(公告)号：EP1216346A1
公开(公告)日：2002-06-26
申请号：EP00968273.3
申请日：2000-09-29
申请人： AB VOLVO
发明人： ANDERSSON, Arne , HÖGLUND, Anders , EISMARK, Jan
IPC分类号： F02B3/00
CPC分类号： F02B23/0645 , F02B1/12 , F02B3/06 , F02B23/0639 , F02B23/0672 , F02B2275/14 , F02D41/0057 , F02D41/3035 , F02D41/40 , F02D41/405 , F02D2041/3052 , F02D2250/31 , F02D2250/36 , F02M45/12 , Y02T10/123 , Y02T10/125 , Y02T10/44
摘要： The invention relates to method of controlling the fuel injection in an internal combustion engine (1) comprising a piston (3), which passes to and for in a cylinder (2) between an upper and a lower dead centre, and an injection nozzle (4), which is disposed in the cylinder (2), the method comprising the steps whereby a primary injection of fuel is realized in the cylinder (2), which fuel is ignited and causes the piston (3) to be moved in the direction of the lower dead centre in the cylinder (2), and whereby a post-injection of a fluid is realized in the cylinder (2). The injection pressure of the fluid in the post-injection is higher than the injection pressure of the fuel in the primary injection.

9. 发明公开

EP0754842A1 Accumulator fual injection system 失效
标题翻译：斯派克 - Kraftstoffeinspritzsystem
公开(公告)号：EP0754842A1
公开(公告)日：1997-01-22
申请号：EP96115935.7
申请日：1992-06-25
申请人： SERVOJET ELECTRONIC SYSTEMS, LTD.
发明人： Roach, Alan R. , Johnston, Bevan Herbert , Beck, Neils J. , Pena, James A.
IPC分类号： F02B3/00 , F02M41/00
CPC分类号： F02M57/025 , F02B1/04 , F02B2075/125 , F02M47/02 , F02M57/02 , F02M57/026 , F02M59/105 , F02M61/06 , F02M61/20 , F02M63/0205 , F02M2200/30 , Y02T10/123
摘要： An apparatus for preventing uncontrolled injections in the event of injector nozzle failure in an internal combustion engine intensified accumulator-type fuel injector. The apparatus comprises low and high pressure intensifier cylinders, with a low pressure piston slidable in said low pressure cylinder and a high pressure plunger slidable in said high pressure cylinder. Said high pressure cylinder has a one-way fuel outlet means in communication with the accumulator cavity, and a one-way fuel inlet port means above said means. The plunger moves downwardly during each normal intensification stroke to a normal lowermost position defined by balanced fuel pressure in the accumulator cavity and said high pressure cylinder below said plunger, and in which lowermost position said inlet port means remains uncovered by said plunger to provide fuel to said high pressure cylinder for the next succeeding intensification stroke; and in the event of injector nozzle failure, reduced balancing pressure in the accumulator cavity allows said plunger to move below its said normal lowermost position to an overtravel position in which it blocks said inlet port means so as to prevent further and uncontrolled injection events.
摘要翻译：一种用于在内燃机中喷射器喷嘴故障的情况下防止不受控制的喷射加强的蓄能式燃料喷射器的装置。该装置包括低压和高压增压器气缸，其中可在所述低压气缸中滑动的低压活塞和可在所述高压气缸中滑动的高压柱塞。所述高压缸具有与蓄能器空腔连通的单向燃料出口装置，以及在所述装置上方的单向燃料入口装置。柱塞在每个正常集中冲程期间向下移动到由蓄能器空腔和所述柱塞下方的所述高压缸中的平衡燃料压力限定的正常最低位置，并且其中最低位置，所述入口端口装置保持未被所述柱塞覆盖以提供燃料用于下一次强化冲程的高压气缸; 并且在喷射器喷嘴故障的情况下，蓄能器空腔中的减小的平衡压力允许所述柱塞在其所述正常最低位置下移动到超行程位置，在该行程位置中，所述柱塞阻挡所述入口端口装置，以防止进一步和不受控制的喷射事件。

10. 发明公开

EP0624226A4 ACCUMULATOR FUEL INJECTION SYSTEM. 失效
标题翻译： STORE燃油喷射。
公开(公告)号：EP0624226A4
公开(公告)日：1995-01-11
申请号：EP92914964
申请日：1992-06-25
申请人： SERVOJET ELECTRONIC SYST LTD
发明人： BECK NEILS J , PENA JAMES A , ROACH ALAN R , JOHNSTON BEVAN H
IPC分类号： F02M41/00 , F02B1/04 , F02B75/12 , F02M45/08 , F02M47/00 , F02M47/02 , F02M57/02 , F02M59/10 , F02M61/06 , F02M61/20 , F02M63/00 , F02M63/02 , F02B3/00
CPC分类号： F02M57/025 , F02B1/04 , F02B2075/125 , F02M47/02 , F02M57/02 , F02M57/026 , F02M59/105 , F02M61/06 , F02M61/20 , F02M63/0205 , F02M2200/30 , Y02T10/123
摘要： A series of method and apparatus advances in the accumulator-type fuel injector art, applicable to both intensified and unintensified accumulator injectors, which cooperate to provide major improvements in internal combustion engine fuel economy, reduction of noise, and reduction of undesirable exhaust emissions, including smoke, oxides of nitrogen and hydrocarbons. According to the invention, injector needle closure speed is increased for sharper fuel cutoff and better atomization proximate closure, and needle closure bounce is minimized to minimize fuel dribble proximate closure by reducing both mass and length of the needle (110), which can be accomplished by a longitudinally divided needle (110, 136). Hydraulic damping also damps and cushions both needle closing and needle opening.

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