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1. 发明专利

DE69030385D1 未知
公开(公告)号：DE69030385D1
公开(公告)日：1997-05-07
申请号：DE69030385
申请日：1990-10-05
申请人： NIPPON DENSO CO , NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： IZAWA AKIHIRO , SAKAKIBARA YASUYUKI , ABE SEIKO , ENOMOTO SHIGEIKU , YANAGIHARA HIROMICHI , HENDA YOSHIMITSU , MATSUMURA TOSHIMI , SHIBATA MASAMICHI
IPC分类号： F02D1/02 , F02D41/20 , F02D41/38 , F02D41/40 , F02M41/12 , F02M45/06

2. 发明专利

DE3336233A1 未知
公开(公告)号：DE3336233A1
公开(公告)日：1984-04-05
申请号：DE3336233
申请日：1983-10-05
申请人： NIPPON DENSO CO
发明人： MIYAKI MASAHIKO , MASUDA AKIRA , MATSUMURA TOSHIMI
IPC分类号： F02D41/40 , F02M41/14 , F02M51/04
摘要： Fuel injection pump of the type arranged to inject fuel into engine cylinders with the fuel flow being controlled by an electromagnetic valve, comprises a rotor arranged to rotate in timed relation to engine rotation, and a shuttle movably received in an axial bore made in the rotor. Opposite sides of the shuttle define first and second chambers within the axial bore, where the first chamber is used as a compression chamber to pressurize fuel introduced therein via the electromagnetic valve to inject the same into engine cylinders, and the second chamber is communicable with a low pressure fuel reservoir. Fuel is fed into the first and second chambers during an intake stroke or mode, and then the second chamber fuel is pressurized by means of an inner cam mechanism so that the shuttle moves toward the first chamber to pressurize the fuel therein, thereby injecting the fuel during a compression stroke. When the shuttle has been moved toward the first chamber beyond a predetermined position, the second chamber communicates with the low pressure fuel reservoir via a by-pass, lowering fuel pressure in the second chamber to terminate injection. The amount of fuel injected into cylinders is controlled by the stroke of the shuttle toward the first chamber, which stroke is initially determined by the energizing interval of the electromagnetic valve.

3. 发明专利

DE3238153A1 未知
公开(公告)号：DE3238153A1
公开(公告)日：1983-04-21
申请号：DE3238153
申请日：1982-10-14
申请人： NIPPON DENSO CO
发明人： MATSUMURA TOSHIMI , OMORI NORIO , KOBAYASHI HISANORI
IPC分类号： F02D45/00 , F02D41/18 , F02D41/24 , F02D41/26 , F02P5/15 , F02D35/00
摘要： A system for correcting for atmospheric pressure without using an atmospheric pressure sensor. A single pressure sensor measures air pressure in the intake manifold of a fuel injected engine. A control unit controls the fuel amount and injection timing in accordance with various engine parameters. The intake pressure at a predetermined time is estimated as being indicative of atmospheric pressure. This intake pressure may be further corrected to provide a better estimate. When the engine operates at a low speed and high load, this pressure data is also indicative of atmospheric pressure. The amount of fuel to be injected and the ignition timing can be controlled using this updated atmospheric data. This provides better operation of the system.

4. 发明专利

DE69030385T2 未知
公开(公告)号：DE69030385T2
公开(公告)日：1997-07-17
申请号：DE69030385
申请日：1990-10-05
申请人： NIPPON DENSO CO , NIPPON SOKEN , TOYOTA MOTOR CO LTD
发明人： IZAWA AKIHIRO , SAKAKIBARA YASUYUKI , ABE SEIKO , ENOMOTO SHIGEIKU , YANAGIHARA HIROMICHI , HENDA YOSHIMITSU , MATSUMURA TOSHIMI , SHIBATA MASAMICHI
IPC分类号： F02D1/02 , F02D41/20 , F02D41/38 , F02D41/40 , F02M41/12 , F02M45/06

5. 发明专利

DE3403260A1 未知
公开(公告)号：DE3403260A1
公开(公告)日：1984-08-09
申请号：DE3403260
申请日：1984-01-31
申请人： NIPPON DENSO CO
发明人： MIYAKI MASAHIKO , MATSUMURA TOSHIMI , MASUDA AKIRA , SUMITANI SINYA , HASEGAWA TAKASHI , HAYAKAWA TAKAHIRO
IPC分类号： F02B1/04 , F02D41/08 , F02D41/14 , F02D41/36 , F02D41/40 , F02D5/02
摘要： The engine speed is periodically detected at every predetermined crankshaft angles for obtaining a plurality of engine speed data whose number equals an integral multiple of the number of cylinders of an internal combustion engine. Either maximum or minimum values among the plurality of engine speed data is determined, and such operations are repeated for a duration covering all power strokes within all the cylinders, thereby obtaining a plurality of sets of engine speed data. Then the order of engine speed data giving the maximum or minimum value within each set is obtained, and majority decision is effected to determine which order of data gives the maximum or minimum most frequently throughout all the sets. The difference between the maximum and minimum values is obtained for each set, and the amount of fuel to be supplied to the engine is controlled so that the difference becomes common to all the cylinders. The fuel amount control may be effected by means of an actuator which controls the position of a spill ring of a distributor injection pump.

6. 发明专利

DE3229763A1 未知
公开(公告)号：DE3229763A1
公开(公告)日：1983-02-24
申请号：DE3229763
申请日：1982-08-10
申请人： NIPPON DENSO CO
发明人： ARIMURA TAKASHI , YAMAZOE HISAMITSU , MATSUMURA TOSHIMI
IPC分类号： F02D41/14 , F02D41/26 , F02D35/02

7. 发明专利

DE3145246A1 Method and device for controlling the idling speed of an internal combustion engine 未知
公开(公告)号：DE3145246A1
公开(公告)日：1982-08-05
申请号：DE3145246
申请日：1981-11-13
申请人： NIPPON DENSO CO
发明人： MATSUMURA TOSHIMI , FUJISAWA HIDEYA , OMORI NORIO , ARIMURA TAKASHI , YAMAZOE HISAMITSU , NISHIURA KIYOTAKA
IPC分类号： F02D41/16 , F02D43/00 , F02D45/00 , F02M3/07 , F02P5/04 , F02P5/15 , F02D31/00
摘要： The idling speed of an internal combustion engine is controlled in response to a variable control signal for the ignition point from a microcomputer. The microcomputer supplies this control signal as a function of the amplitude of a change in the engine speed, which occurs during the engine idling periods, in order to ensure that the ignition point rapidly alters in response to a transient variation of the engine load. An auxiliary air feed device may advantageously be incorporated into the idling speed control device so that it acts in concert with the ignition point control in response to a variation of the engine speed.

8. 发明专利

DE3346799A1 未知
公开(公告)号：DE3346799A1
公开(公告)日：1984-06-28
申请号：DE3346799
申请日：1983-12-23
申请人： NIPPON DENSO CO
发明人： MIYAKI MASAHIKO , MASUDA AKIRA , MATSUMURA TOSHIMI
IPC分类号： F02M41/14

9. 发明专利

DE3321145A1 未知
公开(公告)号：DE3321145A1
公开(公告)日：1983-12-15
申请号：DE3321145
申请日：1983-06-10
申请人： NIPPON DENSO CO
发明人： MATSUMURA TOSHIMI , MIYAKI MASAHIKO , MASUDA AKIRA
IPC分类号： F02M41/12 , F02M41/14 , F02M51/04
摘要： In a fuel injection pump, an engine drives a rotary plunger having an axially extending bore connected to a compression chamber, plural fuel inlet ports alignable with an inlet passage for introducing fuel to the compression chamber, fuel distribution ports for distributing the compressed fuel through the bore to each one of the fuel delivery passages and plural spill ports. A spill-port timing control unit is provided comprising a stator core, a coil wound on thereon, a magnetized ring having a spill groove, and a spring for resiliently maintaining the ring in a reference angular position with respect to the stator core. The magnetized ring is mounted on the plunger so that it can rotate from the reference angular position to an angularly displaced position in proportion to the magnetic flux of the coil to align the spill groove of the ring with each spill port of the plunger to create a passageway through which the compressed fuel is allowed to escape at the termination of fuel injection.

10. 发明专利

DE3312697A1 未知
公开(公告)号：DE3312697A1
公开(公告)日：1983-10-13
申请号：DE3312697
申请日：1983-04-08
申请人： NIPPON DENSO CO
发明人： MATSUMURA TOSHIMI , MIYAKI MASAHIKO , TOMISHIMA HITOSHI , MASUDA AKIRA
IPC分类号： F02B1/04 , F02D41/00 , F02D41/14 , F02D41/34 , F02M41/12 , F02D3/00
摘要： In a fuel injection control system for multi-cylinder internal combustion engines, the speed of the engine is monitored and sampled at predetermined angular intervals of engine revolution to detect instantaneous engine speed values identifiable by individual cylinders. From the successively detected instantaneous speeds is derived an average value which is used as a reference for the instantaneous speed values to detect their deviations therefrom. Cylinder-to-cylinder variations in engine speed are minimized by metering the fuel according to the individually derived engine speed deviations.

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