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    • 1. 发明专利
    • Fuel control device for double burner nozzle
    • 双燃烧器喷嘴燃油控制装置
    • JPS59147930A
    • 1984-08-24
    • JP2166083
    • 1983-02-14
    • Mitsubishi Heavy Ind LtdRyonichi Eng Kk
    • KONDOU JIYUNICHIOOWADA HISAMASUIMAI YOSHIHIKOHASEGAWA TAKESHINUMATA TERUJI
    • F23D11/10F23N1/00F23N1/08
    • F23N1/085
    • PURPOSE:To smoothly control the flow rate of fuel over a wide range of flow rate of steam by a method wherein a shut-off valve and a control valve with smaller maximum flow rate, both of which are connected in parallel, are connected in series to a control valve with larger maximum flow rate. CONSTITUTION:Each of control valves 14 and 16 normally can not control the flow rate smaller than about 10% of its maximum flow rate and yet the leakage on the order of just above-mentioned flow rate can not be prevented from occurring to each valve. When the steam flow rate lowers beyond the point (a) on the abscissa indicating the steam flow rate, the control valve 16 loses its control and yet the leakage of fuel oil with the flow rate P occurs through the valve 16 and at this time the shut-off valve 13 is completely shut-off. However, because the maximum flow rate of the control valve 14 is enough smaller than that of the control valve 16, the opening of the valve 14 can be controlled under the condition that the steam flow rate is smaller than that indicated by the point (a) so as to supply the controlled fuel oil through a pipe 12 to the second nozzle 3 of a doubled burner nozzle 4. When the steam flow rate exceeds that indicated by the point (a), the control valve 16 restores its control and at the same time shut-off valve 13 is open and yet the control valve 14 is fully open, resulting in making the flow rate of fuel oil supplied through a pipe 11 to the first nozzle 2 more influential.
    • 目的:通过一种方法来平稳地控制蒸汽流量范围内的燃料流量,其中两个并联连接的截流阀和最小流量较小的控制阀串联连接 到具有较大最大流量的控制阀。 构成:每个控制阀14和16通常不能控制小于其最大流量的约10%的流量,并且不能防止每个阀门发生刚刚达到上述流量的数量级的泄漏。 当蒸汽流量降低超过表示蒸汽流量的横坐标上的(a)点时,控制阀16失控并且通过阀16发生具有流量P的燃料油的泄漏,此时, 截止阀13完全关闭。 然而,由于控制阀14的最大流量足够小于控制阀16的最大流量,因此可以在蒸汽流量小于点(a ),以便通过管12向第二喷嘴3提供受控燃料油。当蒸汽流量超过点(a)所示时,控制阀16恢复其控制,并且在 同时关闭阀13打开,而控制阀14完全打开,导致通过管道11向第一喷嘴2供应的燃料油的流量更有影响力。
    • 2. 发明专利
    • Internal cylinder pressure input device for diesel engine
    • 柴油发动机内缸压力输入装置
    • JPS59108931A
    • 1984-06-23
    • JP21788882
    • 1982-12-14
    • Mitsubishi Heavy Ind Ltd
    • KONDOU JIYUNICHITSUNODA AKIRAOOYA HIDEOIRIE YASUTAKA
    • G01L23/30
    • G01L23/30
    • PURPOSE:To improve the accuracy of data in the vicinity of a top dead point, which is important in analysis of internal cylinder pressure, by obtaining a top dead point position signal and an internal cylinder pressure signal, and rearranging the data as one degree data for every forward half cycle and every backward half cycle, with the top dead point position signal as a center. CONSTITUTION:Based on the signal from a top dead point position detector 3, a time interval S corresponding to about 0.2 degree in angle is computed by an operator 6. The top dead point position signal is made to be a triggering signal 3a at the time interval S. An internal cylinder pressure signal is inputted to the operator 6 from a pressure gage 4 through an AD converter 5. The top dead point position signal is inputted to the operator 6 from the detector 3 through the AD converter 5. Data number Mi and Mi+1 between rotation reference signals are counted. Data pitches, by which the data numbers are converted into one degree data, are computed (Li=Mi/360 and Li+1= Mi+1/360). With the top dead point position signal as a center, the data are rearranged at one degree interval in accordance with the pitches Li and Li+1 for every forward half cycle and every backward half cycle. The forward half cycle is computed by an expression I and the backward half cycle is computed by an expression II, where INT means conversion to integers.
    • 目的:通过获得上止点位置信号和内部气缸压力信号,提高在内部气缸压力分析中重要的上死点附近的数据精度,并将数据重新排列为一度数据 对于每个前半个周期和每个后半个周期,以上死点位置信号为中心。 构成:根据来自上死点位置检测器3的信号,由操作者6计算出对应于大约0.2度角的时间间隔S.在此时,上死点位置信号为触发信号3a 内部气缸压力信号从压力计4通过AD转换器5输入到操作器6.上止点位置信号通过AD转换器5从检测器3输入到操作器6.数据号Mi 并且对旋转参考信号之间的Mi + 1进行计数。 计算数据编号转换为一度数据的数据间距(Li = Mi / 360和Li + 1 = Mi + 1/360)。 以上死点位置信号为中心,按照每个前半周期和每个后半周期的间距Li和Li + 1,以一度的间隔重新布置数据。 前半周期由表达式I计算,后半周期由表达式II计算,其中INT表示转换为整数。
    • 3. 发明专利
    • Control device of main engine for ship
    • 主要发动机用于船舶的控制装置
    • JPS58214494A
    • 1983-12-13
    • JP9709982
    • 1982-06-07
    • Mitsubishi Heavy Ind Ltd
    • KONDOU JIYUNICHIHARA JIYUNICHI
    • B63H21/21B63H23/00F02D29/02
    • B63H23/00
    • PURPOSE:To prevent overrunning by appropriately controlling fuel supply to a main engine when a screw propeller is exposed above the water surface. CONSTITUTION:A signal detected by a detector 17 is supplied to an integrator 14. In the integrator 14, a signal of speed or acceleration of rolling vibration is inputted and converted into vertical displacement of a hull 23, and this displacement signal L is supplied to a function generator 15. Said generator 15 receives the signal L and compares said signal with displacement Lo, at which a screw propeller 21a begins to emerge from the seawater surface, and supplies it as a load control signal to an addition/subtraction instrument 16 forming a speed governor A' of a main engine control system. Said instrument 16 adds together a fuel control signal given from the flucturating difference in rotational speed and a load control signal following the exposure of the screw propeller from the seawater surface 22, and makes this total a control signal of the fuel ejection quantity.
    • 目的:当螺旋桨被暴露在水面以上时,通过适当控制对主机的燃料供应来防止超速运行。 构成:由检测器17检测的信号被提供给积分器14.在积分器14中,输入滚动振动的速度或加速度的信号,并将其转换为船体23的垂直位移,并将该位移信号L提供给 功能发生器15.所述发生器15接收信号L并将所述信号与位移Lo进行比较,螺杆螺旋桨21a开始从海水表面出来,并将其作为负载控制信号提供给加/减设备16,形成 主发动机控制系统的调速器A'。 所述仪表16将来自旋转速度的波动差异的燃料控制信号和从螺旋桨从海水表面22曝光后的负载控制信号相加在一起,并将其总和为燃料喷射量的控制信号。
    • 5. 发明专利
    • CONTROLLER OF MARINE ENGINE
    • JPS58165108A
    • 1983-09-30
    • JP4726982
    • 1982-03-26
    • MITSUBISHI HEAVY IND LTD
    • KONDOU JIYUNICHI
    • F02D41/40G05B13/00G05B13/02
    • PURPOSE:To improve the controllability of an engine in all operation states, by changing the set of a governor on a basis of the actual number of revolutions of the engine and the deviation between this actual number of revolutions and a set number of revolutions to extend the width of the gain for govenor setting. CONSTITUTION:An adder/subtractor 7 is connected to a handle (setter of number of revolutions) 1 and a detector 6 of number of revolutions to detect a rotation deviation DELTAomega between a set number of revolution and an actual number of revolutions NE. The deviation DELTAomega of the adder/subtractor 7 and the actual number of revolutions NE from the handle 1 are inputted to a control operating circuit 8a of number of revolutions of a controller for a marine engine. Optimum proportion gain constant and integral constant are set to a function generator 21 for proportion gain and a generator 22 for reset time of the circuit 8a on a basis of the actual number of revolutions NE of the engine and the deviation DELTAomega. An optimum rate time is set to a generator 23 for rate time on a basis of the actual number of revolutions NE, and outputs of generators 21-23 and the deviation DELTAomega are operated in a proportional operator 10, an integral operator 11, and a differential operator 12 and are added in an adder/subtractor 13, and the width of the gain for governor setting is extended by the deviation DELTAomega.
    • 6. 发明专利
    • CONTROLLER FOR MAIN ENGINE OF SHIP
    • JPS58152697A
    • 1983-09-10
    • JP3341982
    • 1982-03-03
    • MITSUBISHI HEAVY IND LTD
    • KONDOU JIYUNICHIHARA JIYUNICHI
    • B63H21/21B63H21/14F02D29/02G05D13/00G05D13/04
    • PURPOSE:To prevent overrotation of a main engine, by a method wherein a signal from a water level detector for detecting relative positions of a ship's hull and the surface of water in proximity to a screw propeller is fed to a function generator, and the supply of a fuel to a main engine is controlled in accordance with a signal from the function generator. CONSTITUTION:The water level detector 14 detecting the relative positions of the ship's hull and the surface of water in proximity to the screw propeller supplies a water level detection signal L to the function generator 15. On receiving the signal L, the function generator 15 compares the signal L with a water level L0 at which the screw propeller starts to appear on the surface of water. When the detection signal L is smaller than the water level L0, that is, when the screw propeller is exposed above the surface of water, a load-controlling signal according to the exposure quantity is supplied from the function generator 15 to an adder-subtractor 16 provided in a governor A' in a controlling system for the main engine. The adder-subtractor 16 adds the load-controlling signal to a fuel-controlling signal fed from a rotating speed controller 8, and feeds a controlling signal for fuel injection quantity to an actuator 9. The actuator 9 receives this controlling signal, and controls a fuel injection pump 5.
    • 7. 发明专利
    • FUEL CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE
    • JPS5898633A
    • 1983-06-11
    • JP19630381
    • 1981-12-08
    • MITSUBISHI HEAVY IND LTD
    • KONDOU JIYUNICHI
    • F02D41/34F02D41/10
    • PURPOSE:To make it possible to carry out complete combustion even when the load increases by providing a primary lagging circuit imparting a lag to the variation in the fuel quantity and a time constant setting function generator for setting a lagging time in the variation of the fuel quantity. CONSTITUTION:The time constant setting function generator 1 generates a time constant T in correspondence to the actual rotational speed obtained at a rotational speed detector 06. The primary lagging circuit 2 imparts a lag corresponding to a lag time of the variation in the air quantity to a signal from an adder- subtractor 017. An output signal of the primary lagging circuit 2 and a signal A' from the adder-subtractor 017 are computed of their deviation by an adder-subtractor 3. In a case where this deviation is positive, a signal which passes through a limiter 4 and has a shape identical to that of the output signal of the first lagging circuit 2 is transmitted to an actuator 09. As described above, since a lag is imparted to the fuel quantity variation corresponding to the lag in the air quantity variation, incomplete combustion due to the shortage in the air quantity when the load increases, can be prevented.
    • 10. 发明专利
    • CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE PLANT
    • JPS57193738A
    • 1982-11-29
    • JP7865181
    • 1981-05-26
    • MITSUBISHI HEAVY IND LTD
    • KONDOU JIYUNICHI
    • F02D25/00
    • PURPOSE:To improve fuel consumption, in an internal combustion engine plant for marine use or the like driven with plural internal combustion engines, by providing a control device, for setting a preset speed or optimum quantity of fuel flow to a load, between a load setter and fuel pump. CONSTITUTION:Signals 21, obtained by a speed setter handle 1, and s ignals 22 of speed detectors 6, obtaind through flywheels, become difference signals 23 in subtracters 7, passing through speed controllers 8, and are added with load output signals 11 and 12 in adders 10, and these signals control fuel injection pumps 5, 5 by PID action. A load controller 9 outputs the signals 11, 12 along a distribution curve most efficient for bearing integrated output correspondingly required to a speed. Accordingly, a command of injection quantity by a function generator, decreasing fuel consumption with maximum efficiency of an engine, that is, by the load controller 9, performs distribution of an injection quantity, that is, load distribution to each engine.