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1. 发明专利

JPS57334A FUEL CONTROLLER FOR DIESEL ENGINE 失效
公开(公告)号：JPS57334A
公开(公告)日：1982-01-05
申请号：JP7217380
申请日：1980-05-31
申请人： MITSUBISHI HEAVY IND LTD
发明人： KONDOU JIYUNICHI , NAKASHIMA YORIYASU , HARA JIYUNICHI
IPC分类号： F02D41/40 , F02D41/38
摘要： PURPOSE:To perform perfect combustion of an engine and prevent occurence of its black smoke, by controlling a fuel injection pump in accordance with a result of comparing the amount of fuel required for the perfect combustion at detected speed of the engine with the amount of fuel corresponding to preset speed of the engine from a control handle. CONSTITUTION:To detect rotary speed of an engine 3, a speed detector 2 is provided in the vicinity of a flywheel 9 and its output signal is input to a perfect combustion fuel amount calculator 4. The calculator 4 calculates the amount of fuel capable of perfect combustion at input speed to output a fuel actuator position R* corresponding to said amount of fuel. While a handle setting fuel amount calculator 5 calculates a difference between preset engine speed with a control handle 1 and detected engine speed and calculates the fuel amount for said difference to become minimum to output a fuel actuator position R. These positions R*, R are compared by a comparator 6, thus the injection amount of a fuel injection pump 8 is controlled by said compared result through a fuel actuator 7.

2. 发明专利

JPS56162233A FUEL AMOUNT CONTROL SYSTEM FOR ENGINE 失效
公开(公告)号：JPS56162233A
公开(公告)日：1981-12-14
申请号：JP6486880
申请日：1980-05-16
申请人： MITSUBISHI HEAVY IND LTD
发明人： ANDOU KOUTAROU , NAKASHIMA YORIYASU , HARA JIYUNICHI
IPC分类号： F02D41/40 , F02D41/14 , F02D41/38
摘要： PURPOSE:To effect a proper compensation in accordance with an operating made by a method wherein an operating mode selecting circuit, discriminating in which condition, a rapid reversing, a rough sea steaming, or a low speed steaming the engine is being operated, is equipped in this system of an ocean going ship. CONSTITUTION:A speed setting command signal SV is compared with a revolutional number signal SR from the engine I in a comparator 3 while the deviation signal Se thereof is sent to a speed regulating mode compensating circuit 5 and is compensated in accordance with a selection signal SS from the operating mode selecting circuit 4. A standard limit mode setting circuit 7 generated a signal SL in accordance with the fuel amount to be limited corresponding to the number of revolution of the engine while this signal SL is corrected in a fuel amount limit mode correcting circuit 8 in accordance with the operating mode. The output signal SM from the circuit 8 is sent to a comparator 6 to correct a signal Sc in accordance with the operating mode from the view point of the fuel amount.

3. 发明专利

JPS5584832A BRAKE SYSTEM FOR SELFFREVERSIBLE DIESEL ENGINE 失效
公开(公告)号：JPS5584832A
公开(公告)日：1980-06-26
申请号：JP15752578
申请日：1978-12-22
申请人： MITSUBISHI HEAVY IND LTD
发明人： ANDOU KOUTAROU , NAKASHIMA YORIYASU , HARA JIYUNICHI , KITAMURA TAKASHI , TAKASAKI KIYOSHI
IPC分类号： F02D27/02 , F02D17/00 , F02D17/04 , F02D29/02 , F02D39/06
摘要： PURPOSE:To stop the movement of ship promptly at reversing rotation of engine, through provision of an air release valve and a brake valve which function such that air in cylinder effects negative work to engine during its idling rotation after fuel supply is interrupted and thereby shorten the time required for lowering the revolutional speed of engine to a level capable of injecting brake air. CONSTITUTION:In stopping movement of a ship in motion rapidly, fuel supply to main engine is stopped at first and brake valve 8 is then opened. Thereupon, air is supplied to a starting air control valve 6 through air passage 13, so that valve 6 is operated in relation with the position of starting cam 7. Resultantly, control air is supplied to the top portion of starting cam 5 from the time when piston is located near the top dead point to the time when it is moved to about 120 deg. position after the top dead point, and starting valve 5 is opened for releasing compressed air in cylinder 3 to the atmosphere via release valve 9. This causes rapid drop of the revolutional speed of engine. When the revolutional speed of engine is dropped to a level capable of actuating brake air, cam shaft is shifted to its reversing position and starting air is supplied to cylinder 3 as brake air with valve 9 being closed and starting-air control valve 1 being opened.

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