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1. 发明申请

WO1998000637A1 INDUCTIVE LOAD DRIVING DEVICE AND DRIVING METHOD 审中-公开
标题翻译：电感负载驱动装置及驱动方法
公开(公告)号：WO1998000637A1
公开(公告)日：1998-01-08
申请号：PCT/JP1997002245
申请日：1997-06-27
申请人： KOMATSU LTD. , SAKASAI, Takashi , AKAGI, Jiro , YOSHIDA, Daisuke
发明人： KOMATSU LTD.
IPC分类号： F02D41/20
CPC分类号： F02D41/20 , F02D41/3005 , F02D2041/2013 , F02D2041/2017 , H01F7/1816 , H02P8/10
摘要： An inductive load driving device and a method for driving the same device in which the rise of load current at an initial stage of driving can be executed at high speed. To this end, the device comprises a plurality of step-up circuits (21, 31) for alternately applying a high voltage to the same inductive load within a predetermined period of time to thereby allow a load current to rise at high speed respectively, a holding current output circuit (43) for applying a predetermined voltage to the same inductive load after the load current has risen to thereby hold the load current at a predetermined value, a plurality of switching means (46, 47) adapted to be switched in such a manner that the respective outputs of the plurality of step-up circuits (21, 31) and the holding current output circuit (43) can alternatively connected to the same inductive load, and a control logic circuit (44) for switching the plurality of switching means (46, 47) in a predetermined sequence.
摘要翻译：感应负载驱动装置和驱动相同装置的方法，其中可以高速执行在初始阶段的负载电流的上升。为此，该装置包括多个升压电路（21,31），用于在预定的时间段内交替地向相同的感性负载施加高电压，从而允许负载电流分别以高速上升，保持电流输出电路（43），用于在负载电流上升之后向相同的感性负载施加预定电压，从而将负载电流保持在预定值;多个开关装置（46,47），其适于被切换多个升压电路（21,31）和保持电流输出电路（43）的各个输出可以交替地连接到相同的感性负载的方式，以及用于切换多个切换装置（46,47）。

2. 发明申请

WO1996014503A1 FUEL INJECTION APPARATUS OF INTERNAL COMBUSTION ENGINE 审中-公开
标题翻译：燃油喷射装置内燃机
公开(公告)号：WO1996014503A1
公开(公告)日：1996-05-17
申请号：PCT/JP1995002258
申请日：1995-11-06
申请人： KOMATSU LTD. , AKAGI, Jiro , TAKAHASHI, Masaki , SATOW, Hiroki , OZAWA, Godo , NAKANE, Noriaki
发明人： KOMATSU LTD.
IPC分类号： F02D01/02
CPC分类号： F02D1/10 , F02D1/045 , F02D2001/0025 , F02D2001/004 , F02D2001/007 , F02M59/447
摘要： A fuel injection apparatus of an internal combustion engine includes a fuel injection pump for injecting a fuel in a quantity corresponding to the position of a control rack; a start spring, a control spring and an idling sub-spring, for biasing the control rack in a fuel injection quantity increasing direction; an adjusting lever for adjusting a spring load of the control spring; a governor including a fly weight rotating with the fuel injection pump and moving the control rack in a fuel injection quantity decreasing direction by the centrifugal force; and a stopper mechanism for limiting the movement of the control rack in the fuel injection quantity increasing direction; wherein the stopper mechanism comprises a stopper opposing an end portion of the control rack and an elastic member for biasing and holding the stopper toward and at a stop position, and the elastic force of the elastic member is greater than the sum of the spring load of the start spring and the spring load of the idling sub-spring when the adjusting lever is at an idling position, and is smaller than the sum of the spring load of the start spring, the spring load of the control spring and the spring load of the idling sub-spring when the adjusting lever is at a partial position.
摘要翻译：内燃机的燃料喷射装置包括：燃料喷射泵，其以对应于控制齿条的位置的量喷射燃料; 启动弹簧，控制弹簧和空转副弹簧，用于使燃料喷射量增加方向偏压控制齿条; 用于调节所述控制弹簧的弹簧载荷的调节杆; 调速器，其包括与所述燃料喷射泵一起旋转的飞轮重量，并且通过所述离心力使所述控制齿条以燃料喷射量减小方向移动; 以及用于限制控制齿条在燃料喷射量增加方向上的移动的止动机构; 其特征在于，所述止动机构包括与所述控制齿条的端部相对的止动件和弹性部件，所述弹性部件用于将止动件朝向和停止位置偏置并保持，弹性部件的弹性力大于弹性部件的弹簧载荷当调节杆处于怠速位置时，起动弹簧和空转副弹簧的弹簧载荷小于起动弹簧的弹簧载荷和控制弹簧的弹簧载荷与弹簧载荷之和的总和当调节杆处于部分位置时，空转子弹簧。

3. 发明申请

WO1998016735A1 FUEL INJECTION DEVICE FOR DIESEL ENGINE 审中-公开
标题翻译：燃油喷射装置柴油发动机
公开(公告)号：WO1998016735A1
公开(公告)日：1998-04-23
申请号：PCT/JP1997003581
申请日：1997-10-07
申请人： KOMATSU LTD. , SATO, Hiroki , AKAGI, Jiro
发明人： KOMATSU LTD.
IPC分类号： F02M57/02
CPC分类号： F02M57/021 , F02M57/024
摘要： A fuel injection device for diesel engines which is large in an injector timing duration, small in irregularity, good in responsiveness, and simple in construction. The device comprises a cylindrical body (11), an upper plunger (12) inserted into the body and capable of sliding vertically with a cam, an intermediate plunger for defining a pressure chamber (14) between it and the upper plunger, a lower plunger (16) adapted to abut against the intermediate plunger, and an injection chamber (17) provided on a lower end of the lower plunger which is adapted to receive a force from the upper plunger to jet a fuel in the injection chamber. The device further comprises a thick hole (11b) for pressure oil formed in the body for supplying an oil pressure to the pressure chamber, a timing plunger (13) adapted to move up and down according to a pressure to vary a volume of the pressure chamber, and a timing spring (15) having one end thereof abutting against the timing plunger and the other end thereof abutting against the lower plunger to move the timing plunger up and down according to a pressure.
摘要翻译：一种用于柴油发动机的燃料喷射装置，其喷射器正时持续时间大，不规则小，响应性好，结构简单。该装置包括一个圆柱形主体（11），一个插入本体并能够与凸轮垂直滑动的上部柱塞（12），用于在其与上部柱塞之间限定一个压力室（14）的中间柱塞，一个下部柱塞（16），其适于抵靠所述中间柱塞;以及注射室（17），其设置在所述下柱塞的下端上，所述注射室适于接收来自所述上柱塞的力以在所述注射室中喷射燃料。该装置还包括用于在主体中形成用于向压力室供应油压的压力油的厚孔（11b），适于根据压力上下移动的定时柱塞（13），以改变压力体积定时弹簧（15），其一端与定时柱塞抵接，另一端抵靠下柱塞，以根据压力上下移动定时柱。

4. 发明申请

WO1996037695A1 METHOD OF CONTROLLING FUEL INJECTION APPARATUS FOR INTERNAL COMBUSTION ENGINES 审中-公开
标题翻译：控制内燃机燃油喷射装置的方法
公开(公告)号：WO1996037695A1
公开(公告)日：1996-11-28
申请号：PCT/JP1996001367
申请日：1996-05-23
申请人： KOMATSU LTD. , AKAGI, Jiro , SATO, Hiroki , OKAYA, Koichi , ABE, Norifumi
发明人： KOMATSU LTD.
IPC分类号： F02D41/22
CPC分类号： F02D41/22 , F02D41/1446
摘要： A method of controlling a fuel injection apparatus for internal combustion engines, and is capable of preventing the breakage of a component exposed to high-temperature heat, such as an exhaust manifold. According to the present invention, a first temperature and a second temperature higher than the first temperature are set in advance, and a temperature of an exhaust gas from an internal combustion engine (1) is detected. The number of times at which the temperature of the exhaust gas has exceeded the first set temperature and the time during which the temperature of the exhaust gas has exceeded the second set temperature are totaled respectively, and, either when the total number of times exceeds a predetermined level or when the total time exceeds a predetermined level, at least one of the following corrective actions are taken; giving an alarm, reducing a fuel injection rate and changing the injection timing.
摘要翻译：一种控制用于内燃机的燃料喷射装置的方法，并且能够防止暴露于诸如排气歧管的高温热的部件的断裂。根据本发明，预先设定高于第一温度的第一温度和第二温度，并且检测来自内燃机（1）的废气的温度。废气温度超过第一设定温度和排气温度超过第二设定温度的时间的次数分别合计，当总次数超过第预定水平或当总时间超过预定水平时，采取以下校正动作中的至少一个：发出报警，降低燃油喷射速率并改变喷油正时。

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