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81. 发明专利

JP2000297683A INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2000297683A
公开(公告)日：2000-10-24
申请号：JP10947599
申请日：1999-04-16
申请人： MITSUBISHI MOTORS CORP
发明人： TANAKA TAMON , MUSHIGAMI HIROSHI
IPC分类号： F02B23/00 , F02B23/02 , F02B31/00 , F02D41/02 , F02D41/38 , F02M45/02 , F02M51/00
摘要： PROBLEM TO BE SOLVED: To provide an internal combustion engine that realizes stable combustion with improved exhaust gas characteristic. SOLUTION: Flames of a plurality of main sprays A, injected as a main injection (first injection) close to a top dead center of a piston under a compression stroke, are circulating due to a swirl stream about the axis of a cylinder 1. An auxiliary injection (second injection) is implemented at a timing when its spray center falls between flames to secure sufficient supply of oxygen required to burn auxiliary sprays B. Preferably, depending on a swirl ratio determined by an engine speed Ne, the timing of the auxiliary injection is set. The more the engine speed is increased and swirl ratio is decrease, the more the timing of the auxiliary injection is delayed, to surely locate the center of the auxiliary sprays B between the flames if the main sprays A.

82. 发明专利

JP2000227061A FUEL INJECTION DEVICE OF DIESEL ENGINE 失效
公开(公告)号：JP2000227061A
公开(公告)日：2000-08-15
申请号：JP2950499
申请日：1999-02-08
申请人： HINO MOTORS LTD
发明人： UCHIDA NOBORU , SHIMOKAWA KIYOHIRO
IPC分类号： F02M45/02 , F02D41/40
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device of simple constitution effectively reducing smoke, CO, and the like without being accompanied with increase of NOx. SOLUTION: By providing a controller outputting an injection signal in the vicinity of compression top dead center to let an injection nozzle 8 faced to a combustion chamber 21 perform main injection 20, meanwhile, directly after completing the main injection, outputting an injection signal for a shorter term than the main injection to let it perform post injection, the reoxidation term of intermediate product such as soot and CO due to imperfect combustion generated in the combustion process is prolonged by rerise of combustion temperature due to combustion of post spray, and hence the reoxidation efficiency of the intermediate product is raised.

83. 发明专利

JP2000045847A FUEL INJECTION DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JP2000045847A
公开(公告)日：2000-02-15
申请号：JP22640298
申请日：1998-08-11
申请人： KUBOTA KK
发明人： AKEDA MASAHIRO , MIYAZAKI HIDEYA , UMEDA YUZO , TAKEMURA YUJI
IPC分类号： F02D1/02 , F02D1/18 , F02D41/38 , F02D41/40 , F02M45/02 , F02M45/06
摘要： PROBLEM TO BE SOLVED: To reduce the fuel consumption while lowering the exhaust quantity of the unburned fuel and the unburned gas by starting the pre-injection within a valve overlap period. SOLUTION: Pre-injection 1 and main injection 2 are directly performed in a combustion chamber 3 through a fuel injection pipe 20 connected to a fuel injection pump 8 and a fuel injection nozzle 19. At the time of fuel injection, the main injection 2 is performed near a top dead center 43a of a compression stroke 43, and the pre-injection 1 is started within an overlap period 40 set in a range of the predetermined crank angle before and after a top dead center 41a of an exhaust stroke 41. During the overlap period 40, intake air is not led into a combustion chamber 3, and when the pre-injection 1 of the high- temperature gas inside of the combustion chamber 3 is performed, the pre- injection fuel is vaporized, and diffused by the intake air of the intake stroke 42 quickly led after the overlap period 40. Low-temperature oxidation reaction is generated during the compression stroke 43 so as to form the atmosphere for facilitating the ignition inside the combustion chamber 3, and the main injection fuel is ignited by the main injection 2 with such assistance.

84. 发明专利

JPH11247681A METHOD AND DEVICE FOR FUEL INJECTION CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JPH11247681A
公开(公告)日：1999-09-14
申请号：JP4657598
申请日：1998-02-27
申请人： AISAN IND
发明人： KONOHARA HIROKAZU , SUGIMOTO HIROYASU
IPC分类号： F02M45/02 , F02D41/04 , F02D41/34
摘要： PROBLEM TO BE SOLVED: To enhance the compatibility of a good combusting condition during steady operation and a proper follow-up performance in transitional operation by introducing a method and device for fuel injection control capable of conducting a divided injection which accurately reflects the variation of the load. SOLUTION: The suction amount Ap is measured prior to opening of a suction valve, and gasoline of in the amount 80% of the supply amount Gp on the basis of Ap as measurement is injected (Q1 : first injection), and the suction amount As after opening of the valve is measured, and gasoline in the amount determined by subtraction Q1 from the supply amount Gs on the basis of As as measures is injected (Q2 : second injection), Accordingly a great majority of the necessary amount of gasoline is injected before opening of suction valve and flows into the combustion chamber upon being gasified sufficiently, so that a good combusting condition is generated to lead to excellent purity of the exhaust gas as well as excellent fuel economy. The total quantity of gasoline flowing into the combustion chamber complies with the load of the applicable cylinder in the applicable period of cycle, so that good follow up performance is estabilished even in the transitional operating condition.

85. 发明专利

JPH11210590A FUEL INJECTION DEVICE WITH CENTER FUEL LINE 失效
公开(公告)号：JPH11210590A
公开(公告)日：1999-08-03
申请号：JP30527598
申请日：1998-10-27
申请人： CATERPILLAR INC , LUCAS IND PLC
发明人： COLDREN DANA R , SCHNEIDER MARVIN P , TIMMS COLIN T
IPC分类号： F02M51/00 , F02M45/02 , F02M57/02 , F02M59/36 , F02M59/46
摘要： PROBLEM TO BE SOLVED: To provide a fuel injection device compact and excellent in performance. SOLUTION: In a fuel injection device 20, a valve element 48 formed in an injection device case 50 forming valve space 58 has a valve member 70 and a center tubular body 72 inserted through an opposed hole 84, and has a center fuel path 77 formed substantially coinciding with a through hole 73 of the valve member 70, a tube passage 75 of the center tubular body 72 and the center axis of the injection device. The valve member 70 is energized in the direction of an open position by a valve spring 104 so as to communicate a fuel path of a transfer pump with the valve space 58. At the time of starting an injection cycle, an actuator, desirably a solenoid, closes the valve element 48 against spring force to communicate the center fuel path 77 with a nozzle part.

86. 发明专利

JPH11132078A FUEL INJECTION CONTROLLER FOR DIESEL ENGINE 失效
公开(公告)号：JPH11132078A
公开(公告)日：1999-05-18
申请号：JP29209497
申请日：1997-10-24
申请人： TOYOTA MOTOR CORP , TOYODA AUTOMATIC LOOM WORKS , DENSO CORP
发明人： AMANO NAOKI , ARAKAWA SHINICHI , SHIBATA MASANORI
IPC分类号： F02B3/06 , F02D41/06 , F02D41/40 , F02D45/00 , F02M45/02 , F02N19/00 , F02N17/08
摘要： PROBLEM TO BE SOLVED: To control operation of split injection under a more appropriate condition. SOLUTION: The fuel injection controller 2 of an engine 1 is constituted of a fuel injection nozzle 4, an injection pump 5, an electromagnetic spill valve 21 and a timing control valve 20 for regulating fuel injection quantity and timing respectively, and an electronic control unit(ECU) 8 for controlling them. The ECU 8 controls the fuel injection controller 2 and conducts split injection when at least either of fuel temperature or cooling water temperature detected by a fuel temperature sensor 22 or a water temperature sensor 23 at the time of operation of a starter 25, is lower than prescribed temperature. The split injection continues until the starter 25 is stopped, or a starting mode is released after the rotational speed of the engine 1 becomes a prescribed value or higher.

87. 发明专利

JP2865688B2 失效
公开(公告)号：JP2865688B2
公开(公告)日：1999-03-08
申请号：JP3010589
申请日：1989-02-10
申请人： ROOBERUTO BOTSUSHU GMBH
发明人： HERUMUUTO REMUBORUTO , ERUNSUTO RINDAA , GOTSUTOROOPU HAAKU
IPC分类号： F02M41/06 , F02M41/14 , F02M45/02 , F02M45/06 , F02M59/06 , F02M59/36

88. 发明专利

JP2792139B2 失效
公开(公告)号：JP2792139B2
公开(公告)日：1998-08-27
申请号：JP25228289
申请日：1989-09-29
申请人： ISUZU JIDOSHA KK
发明人： MATSUOKA HIROSHI
IPC分类号： F02B19/10 , F02M45/02

89. 发明专利

JPH10141124A DIESEL ENGINE 失效
公开(公告)号：JPH10141124A
公开(公告)日：1998-05-26
申请号：JP31147496
申请日：1996-11-07
申请人： HINO MOTORS LTD
发明人： SHIMOKAWA KIYOHIRO
IPC分类号： F02D1/02 , F02B1/12 , F02D41/38 , F02D41/40 , F02M45/02 , F02M47/00
摘要： PROBLEM TO BE SOLVED: To provide a diesel engine, which can restrict the generation of NOx and which can lower the discharged variable of black smoke so as to improve the fuel consumption. SOLUTION: An injection device, which performs the preparatory injection for injecting fuel into a combustion chamber at the initial time of a suction process immediately after closing an exhaust valve, the main injection for injecting fuel into the combustion chamber near the compressive top dead point, and the pilot injection for injecting a small quantity of fuel before the main injection, is provided. Since a controller for controlling the injection device in response to the operating condition of an engine is provided, partial lean premixed compressive ignition combustion is performed so as to restrict the generation of NOx, and while the discharged variable of black smoke is lowered so as to improve the fuel comsumption.

90. 发明专利

JPH10503254A 失效
公开(公告)号：JPH10503254A
公开(公告)日：1998-03-24
申请号：JP50563195
申请日：1995-07-21
IPC分类号： F02D45/00 , F01N3/02 , F01N3/023 , F01N3/025 , F02B3/06 , F02D41/02 , F02D41/04 , F02D41/38 , F02D41/40 , F02M45/02 , F02M45/04

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