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1. 发明专利

JP2001140696A COMBUSTOR AND ENGINE WITH IT 失效
公开(公告)号：JP2001140696A
公开(公告)日：2001-05-22
申请号：JP32324799
申请日：1999-11-12
申请人： MITSUBISHI HEAVY IND LTD , SHIP & OCEAN FOUNDATION
发明人： AKAGAWA HIROKAZU , INANAGA NORIYASU , IDE YUICHI , OGATA HIROSHI , OTA HIDEAKI , SAKAKIBARA YASUTO , KITAGAWA MOTOHIRO
IPC分类号： F02G1/055
摘要： PROBLEM TO BE SOLVED: To provide an engine with a combustor providing specified output power effectively heating a heating tube group uniformly. SOLUTION: This engine is provided with a combustor in which a horizontal high pressure vessel a heating tube group axially extending in the high pressure vessel and fuel injection section for injecting fuel are arranged. The combustor is provided with a round pipe having a plurality of holes between the high pressure vessel and a heating tube. The combustor may be arranged in the engine in such a way that a round pipe having a plurality of holes facing downward is arranged inside the heating tube so as to enclose the fuel injection section.

2. 发明专利

JP2013113153A Marine internal combustion engine 审中-公开
标题翻译：海上内燃机
公开(公告)号：JP2013113153A
公开(公告)日：2013-06-10
申请号：JP2011258020
申请日：2011-11-25
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： AKAGAWA HIROKAZU , IKEDA TAKASHI
IPC分类号： F02D19/12 , F02M25/00
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To improve denitration rate of a cylinder ammonia injection system, in a marine internal combustion engine provided with a cylinder ammonia injection denitration system.SOLUTION: The marine internal combustion engine 10 includes a combustion chamber 11 for injecting fuel at high pressure and combusting it, and a cylinder ammonia injection denitration system 30 for injecting ammonia water at high pressure by a system separate from the fuel, which is provided inside the combustion chamber. The engine further includes: a cylinder pressure sensor 41 which detects pressure in the combustion chamber 11; a scavenging temperature sensor 42 which detects air temperature in a scavenging chamber 12; a crank angle sensor 43 which detects crank angle; and a control unit 40 which calculates a cylinder gas temperature based on detection values input from the cylinder pressure sensor 41, scavenging temperature sensor 42 and crank angle sensor 43, and outputs a high-pressure injection command of ammonia water when the cylinder gas temperature is within a predetermined temperature range.
摘要翻译：要解决的问题：提供一种具有气瓶氨注射脱硝系统的船用内燃机中提高气缸氨喷射系统的脱硝率。解决方案：船用内燃机10包括用于在高压下喷射燃料并燃烧的燃烧室11和用于通过与燃料分离的系统在高压下喷射氨水的气缸氨注入脱硝系统30，设置在燃烧室内。发动机还包括：气缸压力传感器41，其检测燃烧室11中的压力; 检测清扫室12内的空气温度的扫气温度传感器42; 检测曲柄角的曲柄角传感器43; 以及控制单元40，其基于从气缸压力传感器41，扫气温度传感器42和曲轴转角传感器43输入的检测值来计算气缸温度，并且当气缸温度为气体温度为高温时输出氨水的高压喷射指令在预定的温度范围内。版权所有（C）2013，JPO＆INPIT

3. 发明专利

JP2012167635A Exhaust gas recirculation apparatus and internal combustion engine system 审中-公开
标题翻译：排气回送装置和内燃机系统
公开(公告)号：JP2012167635A
公开(公告)日：2012-09-06
申请号：JP2011030706
申请日：2011-02-16
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： AKAGAWA HIROKAZU , YUNOKI AKIHIRO , TSUKAHARA CHISATO , DOBASHI SHINSAKU , TAURA MASAZUMI
IPC分类号： F02M25/07 , F02D43/00 , F02D45/00 , G01N21/35 , G01N21/3504 , G01N21/39
CPC分类号： Y02T10/121
摘要： PROBLEM TO BE SOLVED: To provide an exhaust gas recirculation apparatus and an internal combustion engine system, according to which a feed amount of exhaust gas can be properly regulated.SOLUTION: The exhaust gas recirculation apparatus includes a recirculation pipe, a flow rate controlling valve, a laser measuring device, and a control device. The laser measuring device includes a measuring cell; a light emitting part outputting laser beam of a wavelength range including the oxygen absorbing wavelength; an optical system guiding the laser beam emitted from the light emitting part to the measuring cell; a light receiving part receiving the laser beam injected from an incident part, passing through the measuring cell and outputting the received quantity of light as the light receiving signal; a signal processing part processing the light receiving signal output from the light receiving part; a physical quantity calculation part calculating the concentration of oxygen contained in the measuring object gas flowing through the measuring cell on the basis of the result processed in the signal processing part; and a control part controlling the operations of the respective parts.
摘要翻译：要解决的问题：提供一种废气再循环装置和内燃机系统，根据该排气再循环装置和内燃机系统，可以适当地调节废气的进料量。解决方案：废气再循环装置包括再循环管，流量控制阀，激光测量装置和控制装置。激光测量装置包括测量单元; 输出包括氧吸收波长的波长范围的激光束的发光部分; 将从发光部发射的激光束引导到测量单元的光学系统; 接收从入射部分注入的激光束的光接收部分，通过测量单元并输出所接收的光量作为光接收信号; 处理从光接收部输出的光接收信号的信号处理部; 物理量计算部，根据在信号处理部中处理的结果，计算流过测定单元的测定对象气体中含有的氧浓度; 以及控制部件的操作的控制部。版权所有（C）2012，JPO＆INPIT

4. 发明专利

JP2000145582A FUEL INJECTION VALVE 失效
公开(公告)号：JP2000145582A
公开(公告)日：2000-05-26
申请号：JP32090598
申请日：1998-11-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAGAWA HIROKAZU , NAGAE YOSHINORI , ISHIDA HIROYUKI
IPC分类号： F02M53/04 , F02M61/10 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To control the lift of a needle valve with high accuracy even at the time of a low output of an engine, and stably inject fuel in all output zones of the engine by arranging, on a lower part of an upper spring receiver, a stopper for restricting the lift of the needle valve while deforming with volume change of thermal expansion liquid, and appropriately controlling a temperature of the thermal expansion liquid. SOLUTION: In a valve main body 40, a needle valve 4 is fitted to a nozzle 31 in which an injection hole 5 is drilled on a tip end freely to perform reciprocating motion, and both upper and lower end parts of the needle valve 4 are supported by both upper and lower spring receivers 7, 9. In this case, a needle valve lift stopper 10 is disposed on a lower surface of the upper spring receiver 9, and thus thermal expansion liquid whose volume is expanded by means of heating is filled freely to deform. A temperature of the thermal expansion liquid detected by a temperature sensor of a heating part-cum-temperature detection 11 is inputted to a control device 12, and the power of heating wire of the heating part-cum-temperature detection 11. The thermal expansion liquid is expanded, the needle valve lift stopper 10 is deformed, and the lift of the needle valve 4 is controlled with high accuracy.

5. 发明专利

JPH09159141A DEVICE FOR LIQUEFYING AND EXHAUSTING COMBUSTION GAS 失效
公开(公告)号：JPH09159141A
公开(公告)日：1997-06-20
申请号：JP34572695
申请日：1995-12-08
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAGAWA HIROKAZU , INANAGA NORIYASU
IPC分类号： F23J15/06
摘要： PROBLEM TO BE SOLVED: To liquefy and exhaust condensed exhaust gas to water of high pressure and low temperature. SOLUTION: A device for liquefying and exhausting combustion gas comprises an exhaust gas cooler 8 for cooling and liquefying combustion exhaust gas, a prime mover 6 cooled by prinary cooling water which cools the gas cooler, a cooling water cooler 12 for cooling the primary cooling water by secondary cooling water and an exhaust pump 9 for pressurizing and exhausting condensed exhaust liquid. The device is provided with a pipeline 13' for mixing the condensed exhaust liquid at the outlet of the exhaust pump with the secondary cooling water after the outlet of the cooling water cooler and exhausting the mixture.

6. 发明专利

JPH08100660A TURBO-COOLING TYPE INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH08100660A
公开(公告)日：1996-04-16
申请号：JP26096394
申请日：1994-10-03
申请人： MITSUBISHI HEAVY IND LTD
发明人： ISHIDA HIROYUKI , AKAGAWA HIROKAZU , YOSHIHARA SADAO , SHIMODA KUNIHIKO
IPC分类号： F02B33/44 , F02B29/04 , F02B37/00 , F02C1/02
摘要： PURPOSE: To improve pressure resistance compared to a conventional device and reduce a manufacturing cost by reducing pressure difference applied to a casing and sealing parts of a turbo-cooling device. CONSTITUTION: A turbo-cooling device 4 is housed in a scavenging trunk 6. Scavenging pressure is applied to a compressor 4a of the turbo-cooling device 4, a casing of an expansion turbine 4b, and sealing parts, from the outside for reducing pressure difference.

7. 发明专利

JPH0742557A LARGE TWO-CYCLE DIRECT INJECTION TYPE METHANOL ENGINE 失效
公开(公告)号：JPH0742557A
公开(公告)日：1995-02-10
申请号：JP20460193
申请日：1993-07-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： INANAGA NORIYASU , AKAGAWA HIROKAZU , MIYANO HIROAKI , SHIMODA KUNIHIKO
IPC分类号： F02B23/02 , F02B3/06 , F02B75/02 , F02D19/06 , F02M37/00 , F02P19/00
摘要： PURPOSE:To improve thermal efficiency and to reduce a production cost by a method wherein the composite angle of pilot methanol spray satisfies a specified expression while an inter-center distance between the nozzle of an auxiliary fuel value and a glow plug and a diameter of a nozzle satisfy a specified expression. CONSTITUTION:The axis CC1 of a nozzle for pilot spray C1 passing the nozzle center phi1 of an auxiliary fuel valve 1 and the axis CC2 of the nozzle for a pilot spray C2 have respective projections on a horizontal plane which are overlapped with each other. The axis CC1 has an upward angle thetaC1 to a horizontal line H1 passing through the tip of the nozzle and the axis CC2 has a downward angle thetaC2 to the horizontal line H1, and satisfy a condition of 20 deg.C

8. 发明专利

JPH04325758A WATER-MIXED FUEL INJECTING DIESEL FUEL VALVE 失效
公开(公告)号：JPH04325758A
公开(公告)日：1992-11-16
申请号：JP12286291
申请日：1991-04-26
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAGAWA HIROKAZU , SHIMODA KUNIHIKO
IPC分类号： F02M25/022 , F02B3/06
摘要： PURPOSE:To prevent the leak of water bearing fuel into a spring chamber so as to keep a spring from rust formation by providing a water-mixed fuel injecting fuel valve with a nozzle tip having a groove in the sliding face in sliding contact with a needle valve, oil passages for communicating the groove with atmospheric air, and a spring chamber of higher pressure than atmospheric pressure. CONSTITUTION:Water-mixed fuel is supplied into a fuel sump 21 from an inlet connector 10 through oil passages 24-22, and injected from an injection nozzle when the pressure of fuel oil in the fuel sump 21 becomes high to lift a needle valve 5. In such a fuel valve, a ring groove 31 is formed at the sliding face, in sliding contact with the needle valve 5, of a nozzle tip 1, and this groove 31 is communicated with outside air through oil passages 32-34 formed in the nozzle tip 1, a spacer 2 and a fuel valve body 3. Pressure higher than atmospheric pressure is applied to a spring chamber 25 from a bolt 11. through a gap between a spring presser 9 and the fuel valve body 3. Fuel is thereby prevented from leaking out onto the spring chamber 25 side through the sliding face, in sliding contact with the needle valve 5, in the nozzle tip 1 and a gap between the spacer 2 and a spring bearing 6.

9. 发明专利

JPS6357807A LUBRICATING GEAR OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPS6357807A
公开(公告)日：1988-03-12
申请号：JP20002286
申请日：1986-08-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAGAWA HIROKAZU , NAGAE YOSHINORI
IPC分类号： F01M1/06 , F01M1/08
摘要： PURPOSE:To attempt reduction of required lubricating oil amount by forming an oil passage for supplying lubricating oil leading to the side surface of a piston through a crank shaft, a connecting rod, a piston pin and so forth, in the lubricating gear in the caption provided with an insulating layer on the wall surface or the inside of the combustion chamber of a piston. CONSTITUTION:In an internal combustion engine having a piston constituted by attaching a piston crown 1 to a piston body 4 through an insulating layer 2, an oil passage 10 which is connected to a series of lubricating oil supply oil passages formed at a bush 6, a connecting rod 7, a back metal 8 and a crank shaft 9 is formed in the piston body 4 and a piston 5. This oil passage 10 is formed by a circular passage 10a circling the piston body 4 and a radial passage 10b. In this way, lubricating oil can be supplied uniformly around the piston and a sharp reduction of lubricating oil supply amount can be obtained.

10. 发明专利

JPS61175255A HEAT INSULATING PISTON FOR INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61175255A
公开(公告)日：1986-08-06
申请号：JP1455785
申请日：1985-01-30
申请人： MITSUBISHI HEAVY IND LTD
发明人： AKAGAWA HIROKAZU , TATEISHI MATAJI
IPC分类号： F02F3/00 , F02F3/12
摘要： PURPOSE:To reduce the calorific heat transmitted to a body from a crown by forming groove in the contact part with a heat insulating plate rib in the crown having the contact fire surface with a combustion chamber and fitting the heat insulating plate rib made of the material having a low thermal conductivity into the groove. CONSTITUTION:A crown 1 having the contact fire surface with a combustion chamber and a body 2 having a piston-ring groove are formed separately, and a heat insulating plate 7 and a cavity are formed separately, and a heat insulat ing plate 7 and a cavity are formed between the both. A plurality of stripes of rib 8 are formed in concentric circular form onto the upper surface of the heat insulating plate 7. A groove is formed in the contact part between the heat insulating plate rib 8 of the crown 1, and the material 9 having the less thickness than the depth of the groove and the low heat conductivity such as zirconia is inserted into the groove. Further, the rib 8 of the heat insulating plate 7 closest to the crown 1 is fitted into the groove, and the heat insulating plate 7 and the rib 8 are formed separately. Therefore, the calorific heat trans mitted to the body 2 from the crown 1 through the heat insulating rib 8 can be reduced, and the cooling loss can be reduced.

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