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1. 发明专利

JP2009222005A Low-temperature denitration device 有权
标题翻译：低温脱水装置
公开(公告)号：JP2009222005A
公开(公告)日：2009-10-01
申请号：JP2008069251
申请日：2008-03-18
申请人： Mitsubishi Heavy Ind Ltd , 三菱重工業株式会社
发明人： HIRAOKA NAOHIRO , MITSUYANAGI AKIHIRO , WAKATSUKI SUKEYUKI
IPC分类号： F01N3/08 , B01D53/86 , F01N3/20 , F01N3/24
CPC分类号： F02D25/00 , B01D53/9431 , B01D53/9477 , B01D2255/9045 , B01D2258/012 , F01N3/0842 , F01N3/0878 , F01N3/2066 , F01N13/011 , F01N2560/026 , F01N2560/06 , F01N2560/14 , F01N2570/14 , F01N2570/145 , F01N2590/02 , F02B3/06 , F02B63/04 , Y02C20/10 , Y02T10/24
摘要： PROBLEM TO BE SOLVED: To provide a regeneration device for low-temperature working denitration catalysts, capable of providing a means for recovering performance of the denitration catalysts when deteriorated due to generation of acid ammonium sulfate by means of a simple and low-cost device in a large diesel main engine for a vessel. SOLUTION: The low-temperature denitration device comprises denitration catalysts provided on an exhaust gas passage of the diesel main engine in parallel to be respectively opened/closed by a plurality of opening/closing valves, and a regeneration mechanism for the denitration catalysts composed to operate when exhaust gas temperature is a specified value or less. For regeneration of the denitration catalysts, exhaust gas from a diesel engine for power generation, provided separately from the diesel main engine, and of which exhaust gas temperature is higher than the specified value, is sent to the exhaust gas to the denitration catalyst to raise the temperature of the denitration catalyst by opening the opening/closing valve, and thereby the denitration catalyst is regenerated. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于低温工作脱硝催化剂的再生装置，其能够提供一种用于回收脱硝催化剂的性能的方法，所述脱硝催化剂在由于酸性硫酸铵的产生而劣化时，大型柴油发动机用于船舶的成本装置。解决方案：低温脱硝装置包括设置在柴油机主机的废气通道上并联的脱硝催化剂，以分别由多个打开/关闭阀打开/关闭，以及用于脱硝催化剂的再生机构组成在排气温度为规定值以下时运转。为了再生脱硝催化剂，将与柴油主机分开设置的发电用柴油发动机的废气和排气温度高于规定值的废气送往脱硝催化剂以提高排气通过打开开闭阀，从而脱硝催化剂再生脱硝催化剂的温度。版权所有（C）2010，JPO＆INPIT

2. 发明专利

JPS62214220A UNIFLOW SCAVENGING DIESEL ENGINE 失效
公开(公告)号：JPS62214220A
公开(公告)日：1987-09-21
申请号：JP5700186
申请日：1986-03-17
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKATSUKI SUKEYUKI
IPC分类号： F02B25/06 , F02B3/06
摘要： PURPOSE:To control scavenge timing and to improve an output, by providing a control ring, which reciprocates in a phase different from that of a piston, between a cylinder liner and the piston. CONSTITUTION:In a uniflow scavenging engine, which provides scavenge ports 3a in the bottom of a cylinder liner 3 being equipped with an exhaust hole providing an exhaust valve 9 in the top part, a control ring 2 is provided between a piston 1 and the cylinder liner 3. The control ring 2 reciprocates being driven by a crankshaft which reciprocates the piston 1. The control ring 2 is reciprocated in a phase with a delay of about 45 deg. from that of the piston. In this way, the scavenge ports 3a are provided from opening before the piston 1 sufficiently reaches the bottom dead center, and the engine sufficiently converts combustion energy into an output while prevents a scavenge flow from escaping with exhaust.

3. 发明专利

JPS61279715A OIL HYDRAULICALLY DRIVEN TYPE TAPPET VALVE DEVICE 失效
公开(公告)号：JPS61279715A
公开(公告)日：1986-12-10
申请号：JP11985685
申请日：1985-06-04
申请人： MITSUBISHI HEAVY IND LTD
发明人： BAN SHINICHIRO , KONDO JUNJI , WAKATSUKI SUKEYUKI , MATSUMURA YASUIE
IPC分类号： F01L9/02
摘要： PURPOSE:To increase rigidity in a working system and improved a response characteristic of a piston to a roller, by arranging a pump adjacent to an upper part actuator chamber and setting a feed oil pipe, which connects the both of these pump and chamber, in a short length. CONSTITUTION:A plunger 1 of a pump 3, provided approaching an upper part actuator chamber 5, is lifted by an exhaust cam 2 through a roller 9 and a long sized rod 10. Then working fluid in the pump 3 is compressed, and its pressure is propagated in a feed oil pipe 4 of short length, reaching the upper part actuator chamber 5. And if force acting on a piton 6 exceeds the force of an air spring chamber 7, a device, depressing the piston 6, opens an exhaust valve 8. Here the device, arranging the pump 3 approaching the upper part actuator chamber 5, sets the feed oil pipe 4, connecting the both of these pump 3 and chamber 5, in a short length. Accordingly, rigidity can be increased in a working system constituted mainly of the rod 10 and the working fluid.

4. 发明专利

JPS60173365A FUEL-INJECTION PUMP 失效
公开(公告)号：JPS60173365A
公开(公告)日：1985-09-06
申请号：JP2608484
申请日：1984-02-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： YOSHIMURA NOZOMI , WAKATSUKI SUKEYUKI
IPC分类号： F02M55/00 , F02M59/26 , F02M63/02
摘要： PURPOSE:To prevent the occurrence of space or erosion due to a cavitation inside a high pressure pipe as a sudden outflow of fuel is slowed down, by installing one step of a minute opening part of a fine groove at the end of plunger's ramming motion. CONSTITUTION:A plunger 1 to be connected to a reciprocating roller guide 3 performs an up-and-down motion, serving as a fuel-injection pump. Fuel flows in an oil feed chamber 2A by way of a main pipe 8 and then a branch pipe 7, and when the plunger goes down, the fuel enters inside a barrel from a hole (d) of a plunger barrel 2 and rammed by the plunger 1, coming into high pressure in consequence, then sprayed to the inside of a cylinder from a fuel valve 10 after passing through from a pump cover 6 to a high pressure pipe 9. When the plunger 1 moves upward, the hole (d) closes at an effective ramming part (a), thus fuel inside the barrel (e) becomes high pressure. Motion of the ramming part (a) is over, the hole (d) of the barrel opens a little by means of a minute open part (b) of a fine groove, then the barrel's hole (d) comes into a state of being fully opened by a full-open part (c). Therefore, a sudden outflow of fuel is eased to slow enough, thus the said phenomenon may in no case occur.

5. 发明专利

JPS60150473A FUEL INJECTION VALVE 失效
公开(公告)号：JPS60150473A
公开(公告)日：1985-08-08
申请号：JP573084
申请日：1984-01-18
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKATSUKI SUKEYUKI
IPC分类号： F02M61/10 , F02M61/18
摘要： PURPOSE:To sharply reduce a rate of fuel consumption, by installing a fuel injection nozzle hole piercing a nozzle tip from a seat surface of a needle valve to the side of a combustion chamber, in case of a fuel injection valve for a Diesel engine. CONSTITUTION:A fuel groove 8b is installed in position ranging from an outlet of a fuel reve well 8 of a fuel injection valve body 15 to a nozzle tip 10 on the sidepiece of a needle valve 11. When fuel being filled up in the fuel groove 8b reaches its opening pressure, the needle valve 11 moves upward, spacing a seat surface 10a to some extent, whereby the fuel is spouted out of a fuel injection nozzle hole 9. The moment the needle valve 11 is closed, the fuel is not longer collected except a slight space inside the fuel injection nozzle hole 9 so that the ''after-dripping'' phenomenon is eliminated to nothing. With this constitution, a rate of fuel consumption in the engine is sharply reducible.

6. 发明专利

JPH10339125A INTERNAL COMBUSTION ENGINE HAVING STUFFING BOX 失效
公开(公告)号：JPH10339125A
公开(公告)日：1998-12-22
申请号：JP16493297
申请日：1997-06-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： MITSUYANAGI AKIHIRO , WAKATSUKI SUKEYUKI
IPC分类号： F01M11/00 , F16J15/40
摘要： PROBLEM TO BE SOLVED: To enhance sealing capability of a stuffing box by constituting so as to be forcedly oiled between selected rings by a ring group which does not communicate with both a crank chamber and a combustion chamber among plural seal rings arranged in the stuffing box to airtightly separate the combustion chamber and the crank chamber from each other. SOLUTION: A stuffing box 100 is arranged on the outer peripheral surface side of a piston rod 10, and seal rings 1a to 1h of eight stages are arranged in rows on the inner peripheral side of the stuffing box 100. A scrape of oil and a seal in a block 3 are performed by the seal rings 1a to 1c, and a thing unscraped by these seal rings 1a to 1c is scraped away by the seal rings 1d and 1e. In this case, an oiling hole 12 is arranged between the seal rings 1c and 1d and between the seal rings 1d and 1e, and system oil can be poured by a pump 13. Therefore, a combustion product material and cylinder lubricating oil can be prevented from infiltrating into a crankcase 4 from the block 3.

7. 发明专利

JPH10159684A FUEL INJECTION VALVE 失效
公开(公告)号：JPH10159684A
公开(公告)日：1998-06-16
申请号：JP33642896
申请日：1996-12-02
申请人： MITSUBISHI HEAVY IND LTD
发明人： YAMAMOTO TETSUYA , WAKATSUKI SUKEYUKI
IPC分类号： F02M47/00 , F02M61/10 , F02M61/16
摘要： PROBLEM TO BE SOLVED: To avoid generation of negative pressure in a fuel injection pipe line by providing a pressure accumulator mechanism having a subsidiary chamber communicated to a fuel reservoir and having a fixed capacity, a piston facing to the sub-camber and holding the subsidiary chamber at fixed pressure, and a spring. SOLUTION: Fuel is gradually pressurized from a fixed injection beginning crank angle, and reached to a fuel reservoir 2 through an injection pipe and a fuel passage 4. Pressure in the fuel reservoir 2 is applied to a needle valve 3, and when it exceeds the valve opening pressure, the needle valve 3 is opened and fuel in the fuel reservoir 2 is injected from a nozzle 5 into the combustion chamber of an engine. After injection, when the pressure in the fuel reservoir 2 is lowered under the valve opening pressure of the needle valve 3, the needle valve 3 is closed, and simultaneously pressure wave is generated between a fuel injection pump and the fuel reservoir 2 of a fuel injection valve. The pressure wave becomes large at the fuel reservor 2, reaches a subsidiary chamber 7 through a communicating hole 11, and when the pressure wave is lowered nearby negative pressure, a piston 8 provided in the subsidiary chamber 7 is pushed down by a spring 10, fuel in the subsidiary chamber 7 flows out into the fuel reservoir 2, and hence positive pressure is held.

8. 发明专利

JPS62147021A INTERNAL COMBUSTION ENGINE EQUIPPED WITH EXHAUST GAS TURBINE SUPERCHARGER 失效
公开(公告)号：JPS62147021A
公开(公告)日：1987-07-01
申请号：JP28694985
申请日：1985-12-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKATSUKI SUKEYUKI , SAKAGUCHI KATSUHIKO
IPC分类号： F02B37/02
摘要： PURPOSE:To make exhaust gas led into an exhaust gas collector ring high in static pressure and flow exhaust gas smoothly by providing a diffuser, the opening of which enables shooting-up of exhaust gas to the direction along the inner circumference of the circumferential wall of the collector ring. CONSTITUTION:Exhaust gas generated in a combustion chamber 9 is sent into a cylindrical exhaust gas collector ring 6 through a diffuser type exhaust gas branch pipe 5 with an exhaust valve 4 opened. In this case, diffusion effect of the exhaust gas branch pipe 5 makes exhaust gas led into the cylindrical exhaust gas collector ring 6 high in static pressure. As exhaust gas is shot up to the direction along the inner circumference of the circumferential wall of the cylindrical exhaust gas collector ring 6 from the opening of the exhaust gas branch pipe 5, exhaust gas is made to be revolving gas flow 7 in the exhaust gas collector ring 6 for flowing exhaust gas smoothly in said collector ring 6.

9. 发明专利

JPS62139959A GAS FUEL INJECTION VALVE WITH SEALING MECHANISM 失效
公开(公告)号：JPS62139959A
公开(公告)日：1987-06-23
申请号：JP28067585
申请日：1985-12-12
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKATSUKI SUKEYUKI , SAKAGUCHI KATSUHIKO
IPC分类号： F02M21/02 , F02M61/00
摘要： PURPOSE:To prevent a gas from being mixed into a working fluid by providing a chamber for holding a high pressure working fluid in between a working fluid chamber for opening an injection valve and said gas injection valve, in a gas fuel injection valve. CONSTITUTION:A fuel injection valve for injecting a gas into a combustion chamber injects the gas in a chamber 11a, by feeding a high pressure working fluid into a working fluid chamber 12a to lift up a needle valve 1 and opening a valve seat 2a. A notch part 14 is provided in between the chamber 11a and the working fluid chamber 12a, to always hold a high pressure working fluid from a working fluid line via a check valve 13a. Accordingly, when the needle 1 is closing due to pressure drop in the working fluid chamber 12a, a high pressure gas from the chamber 11a is checked by the high pressure working fluid in the notch part 14 before reaching the working fluid chamber 12a.

10. 发明专利

JPS6078167A GLAND PACKING 失效
公开(公告)号：JPS6078167A
公开(公告)日：1985-05-02
申请号：JP18589683
申请日：1983-10-06
申请人： MITSUBISHI HEAVY IND LTD
发明人： WAKATSUKI SUKEYUKI
IPC分类号： F16J15/24 , F16J15/18
摘要： PURPOSE:To improve sharp oiling for a piston rod, by installing a fitting hole, whose upper part is wide but narrow in the lower part, in the inside of an uphousing of a Diesel engine having a crosshead as well as installing packing in a lower part of the hole and also a spring on the top of the packing. CONSTITUTION:A fitting hole 24 having an incline, whose upper part is wide but narrow in the lower part, is installed in the inside of an uphousing 23 of a large marine crosshead type Diesel engine, while gland packing 1 composed of a carbon fiver material is inserted into a lower part of the hole 24, and a spring 22 is installed on top of the packing 21. Since the gland packing 21 consists of a carbon fiber material, it is excellent in sharp oiling and, what is more, as the packing 21 is held down under pressure, maintenance during engine dricing is no longer required whereby such the packing 21 as being excellent in the sharp oiling for a piston rod 1 is securable.

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