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1. 发明专利

JPH04301110A LUBE OIL TEMPERATURE CHANGING SYSTEM 失效
公开(公告)号：JPH04301110A
公开(公告)日：1992-10-23
申请号：JP8730491
申请日：1991-03-28
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMODA KUNIHIKO , AYABE HISAFUMI , GOTO KEIZO
IPC分类号： F01M5/00
摘要： PURPOSE:To prevent an abnormal abrasion of a piston ring and a liner from occurrence by providing so that the scrape-down effect of the lube oil by the piston ring at the surface of the liner does not increase and the oil exists enough on the liver even in the case that it is operated for a long period in the condition that the ripples of load land revolution are little. CONSTITUTION:This system has a lube oil cooler 22, a bypass circuit 26 fitted with a valve for that cooler, a temperature detector 28 for the oil on the downstream of that bypass circuit, a temperature controller 51 fitted with a timer mechanism 52, and lowers the set temperature of the lube oil repeatedly in every set time when the ripples of an engine and revolution are little.

2. 发明专利

JPH04148020A COMBUSTION CHAMBER WITH AUXILIARY CHAMBER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04148020A
公开(公告)日：1992-05-21
申请号：JP26936790
申请日：1990-10-09
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMODA KUNIHIKO , IMOTO KOJI , KATAOKA YOICHI
IPC分类号： F02B19/18 , F02B19/08 , F02B19/14 , F02B19/16
摘要： PURPOSE:To accelerate mixing fuel with air within an auxiliary chamber even when an engine is low in revolution and loading, and thereby restrain the concentration of smoke from being increased as well as to improve engine performance by inclining plural communicating passages the lower end and upper ends of which are communicated with a main chamber and the auxiliary chamber respectively, to the respective directions of swirling. CONSTITUTION:A piston 10 is provided with a main chamber 11, and the main chamber 11 is communicated with an auxiliary chamber 20 through communication passages and injection ports 22 and 23. And the upper section of the auxiliary chamber 20 is provided with a fuel injection nozzle 30. In this case, two communication passages 41 and 42 are provided while being inclined with respect to the whole of flowing direction (a) from the main chamber 11 to the auxiliary chamber 20. And at the time of compression stroke, let air flow into the auxiliary chamber 20 from the main chamber 11 through the respective communication passages 41 and 42, so that swirling flow to the specified direction is thereby produced within the auxiliary chamber 20. This thereby permits mixing fuel with air to be accelerated within the auxiliary chamber 20 even when an engine is low in revolution and loading, thereby securing excellent engine performance.

3. 发明专利

JPH01159410A DIVIDED COMBUSTION CHAMBER TYPE DIESEL ENGINE 失效
公开(公告)号：JPH01159410A
公开(公告)日：1989-06-22
申请号：JP31515087
申请日：1987-12-15
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI MOTORS CORP
发明人： SHIMODA KUNIHIKO , IMOTO KOJI , KATAOKA YOICHI , OIKAWA HIROSHI
IPC分类号： F02B19/14 , F02B3/06 , F02B21/02
摘要： PURPOSE:To aim at reduction in a combustion period and improvement in heat efficiency by dividing a sub-chamber forming a combustion chamber together with a main chamber into two chambers, and installing a fuel injection valve in the sub-chamber being interconnected to the main chamber side via a connecting hole, while installing a throttle part between both these sub- chambers. CONSTITUTION:When a piston comes nearer to a top dead point, each internal pressure in a main chamber 21 and two sub-chambers 41, 42 goes up. When fuel is sprayed to the first sub-chamber 41 from a fuel injection valve 31 and ignited, combustion gas contained with fuel is sprayed to the main chamber 21 by way of a connecting hole 24. At this time, since a throttle part 43 is installed between both these sub-chambers 41, 42, the fuel is in no case directly entered into the second sub-chamber 42. In addition, a part of the combustion gas flows into the second sub-chamber 42 from the first sub-chamber 41, whereby fuel in this combustion gas is burned by air in the second sub-chamber 42. Afterward, when the piston is lowered, air is fed to the first sub-chamber 41 from the second sub-chamber 42, and the fuel is reignited in the first sub- chamber 41.

4. 发明专利

JPS641649B2 失效
公开(公告)号：JPS641649B2
公开(公告)日：1989-01-12
申请号：JP19861081
申请日：1981-12-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOSA YOZO , SHIMODA KUNIHIKO
IPC分类号： F02B33/30 , F01L1/38 , F02B25/04 , F02B25/24 , F02B29/08 , F02B75/02

5. 发明专利

JPS6371522A INTERNAL COMBUSTION ENGINE WITH EXHAUST TURBOCHARGER 失效
公开(公告)号：JPS6371522A
公开(公告)日：1988-03-31
申请号：JP21617086
申请日：1986-09-12
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI MOTORS CORP
发明人： SHIMODA KUNIHIKO , NAGAE YOSHINORI , MATSUO SHIGETO , HARADA TSUNEO , OIKAWA HIROSHI
IPC分类号： F02B37/00 , F02B37/16
摘要： PURPOSE:To keep the reduction in an engine speed within an allowable range even if an auxiliary machinery load is suddenly added, by providing a bypass passage with a value which connects the upstream side of a throttle valve to the downstream side of a compressor. CONSTITUTION:When the load of a generator 12 is small, a throttle valve 110 and an open/close valve 116 are closed to bring an electromagnetic clutch 113 into a connected condition, and an auxiliary pump 114 Is driven, so that the intake air density of a compressor 21 decreases. An engine 11 takes in air through an intake manifold 16 via a check valve 121 in a bypass pipe 120, and operates as a nonsupercharged engine. If the load of a generator 12 is suddenly added, the throttle valve 110 is gradually opened and further the open/ close valve 116 is opened to bring the electromagnetic clutch 113 into a disconnected condition. The compressor 21 comes gradually to take in the atmosphere, and the discharged air thereof is supplied to the intake manifold 16 through an auxiliary pump bypass pipe 115.

6. 发明专利

JPS6313021B2 失效
公开(公告)号：JPS6313021B2
公开(公告)日：1988-03-23
申请号：JP13331881
申请日：1981-08-27
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOSA YOZO , SHIMODA KUNIHIKO
IPC分类号： F02G1/044 , F02G1/043 , F02G1/055 , F02G1/06

7. 发明专利

JPS62139933A TURBO COMPOUND ENGINE 失效
公开(公告)号：JPS62139933A
公开(公告)日：1987-06-23
申请号：JP27695185
申请日：1985-12-11
申请人： MITSUBISHI HEAVY IND LTD
发明人： TOSA YOZO , SHIMODA KUNIHIKO , NAKAMURA YUICHI , YASUDA NOBUHIKO
IPC分类号： F02B37/10 , F02B41/10
摘要： PURPOSE:To improve output throughout an operation range for a turbo compound engine by providing a one-way clutch between a turbine and an engine, and a turbine and a compressor, and an on-off clutch between the engine and the compressor. CONSTITUTION:A primary gear train 7a connecting a turbine rotary shaft 5a to a crank shaft 8 at engine side is provided with a primary on-way clutch for transmitting a power only from turbine side to an engine. A secondary gear train 7b connecting a compressor rotary shaft 5b to the crank shaft 8 is fitted with an on-off clutch 10 turning 'ON' at a high-load and low- and medium-speed range, and a secondary one-way clutch 11 for transmitting a power only from a turbine 3 to a compressor 4.

8. 发明专利

JPS6241964A FUEL INJECTION DEVICE 失效
公开(公告)号：JPS6241964A
公开(公告)日：1987-02-23
申请号：JP18104185
申请日：1985-08-20
申请人： MITSUBISHI HEAVY IND LTD
发明人： TAKAISHI TATSUO , SHIMODA KUNIHIKO , KUNIMOTO ETSUO , HARADA TSUNEO
IPC分类号： F02M59/26
摘要： PURPOSE:To improve the rate of fuel consumption in a high speed rotation area by providing a timing control port through a plunger barrel and providing an opening/closing mechanism for opening and closing said timing control port. CONSTITUTION:A plunger 1 reciprocates inside a plunger barrel 3, on which a fuel feeding port 4 and a fuel draining port 4 are provided. A timing control port 7 is provided on the lower part of the fuel feeding port 4 on the plunger barrel 3, and is opened and closed by means of a control bar 8. When the control bar 8 is placed at the open position of the timing control port 7, a plunger chamber 6 is connected to a fuel chamber 10 via a timing control passage 9. Thereby, the rate of fuel consumption in a high speed rotation area can be improved.

9. 发明专利

JPS61237866A COOLING STRUCTURE OF WATER-COOLED TYPE INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61237866A
公开(公告)日：1986-10-23
申请号：JP7657885
申请日：1985-04-12
申请人： MITSUBISHI HEAVY IND LTD , MITSUBISHI MOTORS CORP
发明人： SHIMODA KUNIHIKO , TOSA YOZO , GOTO KEIZO , ISHIKAWA HIDEYUKI , OIKAWA HIROSHI
IPC分类号： F02F1/10 , F02F1/14
摘要： PURPOSE:To decrease the coefficient of dynamic viscosity of lubricating oil on the inner surface of a liner part and to reduce a friction loss between a cylinder and a piston, by a method wherein, in a device provided at the outer periphery of a liner part with a water cooling chamber, the thickness of the liner part is so formed that its lower part is thicker than its upper part. CONSTITUTION:Cooling water, discharged from a cooling water 21, flows to the lower part of a cooling water jacket 51, and after it cools the outer surface of a liner part 50, the cooling water incomes to a cooling water reservoir 24 of a cylinder head 13 through a communicating port 23 formed in an upper part. Thereafter, the cooling water flows to a thermostat 27 through a piping 26 by means of a cooling water outlet pipe 25. A part thereof further flows through a radiator 28 and a piping 29, and the remaining part flows to a cooling water pump 21 through a bypass piping 31. In this consitution, the thickness of the liner part 50 formed to the interior of a crank case 11 of a point on the the liner part increases the further downward along the liner part this point is situated. This causes the width of a cooling jacket 51 of this point along its surface to decrease the further downward along its surface this point is situated, resulting in the possibility to prevent cooling of the lower part of the liner part 50 to achieve a desired purpose.

10. 发明专利

JPS61160522A SCAVENGE PUMP DEVICE IN UNIFLOW ENGINE 失效
公开(公告)号：JPS61160522A
公开(公告)日：1986-07-21
申请号：JP144785
申请日：1985-01-10
申请人： MITSUBISHI HEAVY IND LTD
发明人： SHIMODA KUNIHIKO , GOTO KEIZO , HIRAYAMA YOSHINORI
IPC分类号： F02B33/44 , F02B37/04
摘要： PURPOSE:To obtain a high scavenge pressure even if an auxiliary motor blower is eliminated, by utilizing a scavenge valve which slides on the inner surface of an engine cylinder and opens and closes scavenge holes, and a scavenge pump chamber in which a partition wall is provided in a scavenge sump so that a closed space is defined below the piston. CONSTITUTION:When the load of an engine is below 50%, a valve 54 is opened while a discharge valve 56 is closed to introduce high pressure air into an air cylinder 52 so that an air piston 53 serves as an air spring 53. As a piston 17 ascends, scavenge air is introduced from a scavenge air inlet chamber 41 into a scavenge air pump chamber 42 through a check valve 44. A scavenge port 12 is closed by a scavenge port valve 51. When a piston 17 descends, pressure in a scavenge chamber 42 increases so that scavenge air flows from the scavenge air pump chamber 42 into a scavenge air pump 19 through a check valve 45. Further, the piston 17 lowers to depress the scavenge port valve 51 overcoming the air piston 53 so that scavenge air flows into the cylinder through scavenge holes 12. When the load of the engine is above 60%, high pressure air in the air cylinder 52 is discharged so that the same scavenge operation is carried out as that in conventional engines.

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