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41. 发明专利

JPS62210228A FUEL PRESSURE CONTROLLER 失效
公开(公告)号：JPS62210228A
公开(公告)日：1987-09-16
申请号：JP5137286
申请日：1986-03-11
申请人： NIPPON SOKEN
发明人： NATSUYAMA YUKIHIRO , ITO TOSHIHIKO , YOSHINAGA TORU , OMICHI SHIGEKI , TAKEUCHI YASUHIRO
IPC分类号： F02D1/02 , F02B75/12 , F02D41/20 , F02M41/12 , F02M45/04 , F02M47/02 , F02M51/06 , F02M63/00 , F02M63/02
摘要： PURPOSE:To prevent production of bubbles in fuel by communicating an accumulator through a small hole with a pressure chamber and providing a control valve for opening/closing the small hole. CONSTITUTION:An accumulator 315 is communicated through a small hole 311 with a pressure chamber 104 and a control valve 312 for opening/closing the small hole 311 is provided. When the pressure in the pressure chamber 104 is lower than a predetermined level, the small hole 311 is closed by means of the control valve 312 and when the pressure in the pressure chamber exceeds over the predetermined level, the small hole 311 is opened. Since the fuel is maintained at a constant pressure level when it is delivered, production of bubbles in the fuel can be prevented.

42. 发明专利

JPS62170736A FUEL INJECTION RATIO CONTROL DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPS62170736A
公开(公告)日：1987-07-27
申请号：JP1217986
申请日：1986-01-24
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ITO TOSHIHIKO , YOSHINAGA TORU , NATSUYAMA YUKIHIRO , OMICHI SHIGEKI , KOBAYASHI FUMIAKI
IPC分类号： F02D1/02 , F02B3/06 , F02M41/12 , F02M51/00
摘要： PURPOSE:To accurately perform a fuel injection ratio control, by providing a fuel injection ratio control device which is intercommunicated to a high pressure chamber capable of being pressurized by means of the plunger of a fuel injection pump, and provided with a free-piston inserted into the cylinder thereof, thereby electrically controlling the displacement of the free-piston. CONSTITUTION:An injection ratio control mechanism 40 is provided on the front face of a housing 10 of a distributor type fuel injection pump. Said mechanism 40 is constituted in such a way that a solenoid valve 45, variable displacement mechanism 46 and partion plate 47 are housed in a casing 41, wherein the solenoid valve 45 is provided with a valve body 51 which is upward moved against a spring 50 so as to be separated from a valve seat 56 by excitation of a solenoid 48. Further, a free-piston 52 energized by a spring 53 in a cylinder 65 is housed in the variable displacement mechanism 46. Then, the first hydraulic pressure chamber 67 partioned by the piston 52 is intercommunicated to a low pressure chamber 16 through a solenoid valve 45 and the second hydraulic pressure chamber 68 is intercommunicated to a high pressure chamber 13 partioned between a plunger 12 and partion plate 47 through a continuity passage 66.

43. 发明专利

JPS62111110A OIL HEATING DEVICE 失效
公开(公告)号：JPS62111110A
公开(公告)日：1987-05-22
申请号：JP25067785
申请日：1985-11-11
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YORITA HIROSHI , ITO TOSHIHIKO , TANAKA TAKESHI , SATO AKIRA
IPC分类号： F01M5/00
摘要： PURPOSE:To reduce oil viscosity at low temperature and lessen a pump load by providing a heater on a bypass valve laid in parallel with a suction pipe running from an oil pan to an oil pump, and feeding an electric current to said heater during the time of turning on a key switch to start finish. CONSTITUTION:In parallel with an oil suction pipe 7 running from an oil pan 11 to an oil pump 8, there is a bypass pipe 6 provided. And within the bypass pipe 6 are provided a heater 5 at the side of an oil pan 11, and an oil temperature detecting thermister 4 at the side of an oil pump 8, respectively. An electric current supply to the heater 5 is controlled by a control circuit 3 and concurrently with a switching-on signal from a key switch 2, the current supply starts. When a starter 9 is supplied with an electric current and this current supply is stopped after the running thereof, a current supply to the heater 5 is stopped.

44. 发明专利

JPS62107264A FUEL INJECTION DEVICE 失效
公开(公告)号：JPS62107264A
公开(公告)日：1987-05-18
申请号：JP24412685
申请日：1985-11-01
申请人： NIPPON SOKEN
发明人： NATSUYAMA YUKIHIRO , ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TORU , OMICHI SHIGEKI
IPC分类号： F02M55/02 , F02M47/02 , F02M51/00
摘要： PURPOSE:To simplify the structure of a fuel ignition pump by providing an accumulator nozzle, which retains and injects high pressure fuel to be supplied in a branching form from a fuel ignition pump, for every cylinder and interposing a pressure regulation means in a fuel pipe passage which is connected to respective nozzles. CONSTITUTION:Each of accumulator nozzles 1-4 is provided at every cylinder so that fuel can be supplied from an in-line fuel ignition pump 400. Everyone of the accumulator nozzles 1-4 has an accumulator 40, which reserves the fuel supplied to an inlet port 11, and injects the fuel from an injection port 13 when a needle valve 12 is opened by the operation of a piezo-actuator 31. A device 500 for varying volume is provided, as a pressure regulating means, on the upstream side of a fuel pipe passage 70 which connects the fuel injection pump 400 to respective accumulator nozzles 1-4. And the device 500 varies the fuel pressure by linking up with an accelerator pedal 80 in such a way that the fuel pressure is increased in proportion to the opening of acceralator.

45. 发明专利

JPS6267275A FUEL INJECTION DEVICE 失效
公开(公告)号：JPS6267275A
公开(公告)日：1987-03-26
申请号：JP20638985
申请日：1985-09-20
申请人： NIPPON SOKEN
发明人： ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TORU , NATSUYAMA YUKIHIRO
IPC分类号： F02M51/06 , F02M51/00 , F02M57/02
摘要： PURPOSE:To make an injection rate lower at the initial stage but higher at the time of termination, by letting a needle valve open a nozzle hole by means of decompression in a pump case, performing fuel injection, while closing the nozzle hole with pressure inside the pump case upped, and stopping the fuel injection. CONSTITUTION:The fuel fed by pressure to a fuel injection valve 200 from a fuel supply source 100 is spouted out of a nozzle hole 203 when a needle valve 228 opens or closes this nozzle hole 203 in response to expansion and contraction motions of an electrostrictive type actuator 201. Since there is provided with a check valve 228, the needle valve 202 makes injection fuel pressure increasable when going down to open it. That is to say, high pressure injection takes place the higher the nearer to injection termination. And, an injection rate at the initial stage of injection is held down to relatively low. In addition, a throttle 231 is formed in a regulating passage 226, and when the needle valve 202 goes up, pressure in a pump case 211 is gradually raisable with feed pressure as an upper limit and, what is more, at the time of a compression stroke of the pump case, pressure inside this pump case 211 is yet more suddenly raisable.

46. 发明专利

JPS61279717A SUPPLY DEVICE FOR LUBRICATING OIL IN INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61279717A
公开(公告)日：1986-12-10
申请号：JP12142485
申请日：1985-06-06
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： TANAKA TAKESHI , ITO TOSHIHIKO , ARAI KATSUMI , YORITA HIROSHI , KAWAI NOBUAKI
IPC分类号： F01M1/16
摘要： PURPOSE:To improve startability of an engine, by providing a relief valve, through which a pressure oil supply circuit and a relief circuit communicate when the engine is in cranking operation, and decreasing a load applied to the engine due to a pressure rise of oil in the pressure oil supply circuit. CONSTITUTION:The captioned device has a circulating pressure oil supply circuit, which contains an oil pan 1, oil pump 2, oil filter 4, oil cooler 6, oil cooler relief valve 7 and an engine lubrication part 8, while a relief circuit 9 which interposes a relief valve 3 branching from a pressure oil supply passage 18 between the oil pump 2 and the oil filter 4 and communicating with the oil pan 1. Here the device provides the second relief circuit 20 branching parallelly with said relief circuit 9 from the pressure oil supply passage 18. And the device interposes in said circuit 20 a relief valve 21 equipped with a valve unit 30 having two valve plates 31, 32 so as to be opened when an engine is in cranking operation and when the pump generates a delivery pressure of predetermined value or more.

47. 发明专利

JPS61271881A CONTROL DEVICE FOR ELECTROSTRICTION TYPE ACTUATOR 失效
公开(公告)号：JPS61271881A
公开(公告)日：1986-12-02
申请号：JP11203685
申请日：1985-05-27
申请人： NIPPON SOKEN
发明人： ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , WATANABE KAZUHIDE , TAKIGAWA MASAHIRO
IPC分类号： F02M51/06 , F02B1/04 , F02B75/02 , F02D41/20 , F02D41/40 , F02M47/06 , F02M63/00 , H01L41/04 , H01L41/09 , H02N2/00
摘要： PURPOSE:To make the injection rate variable when the device is applied to a fuel injection valve, by providing a means, which controls the discharging amount of electric charge, which is supplied to an electro-striction type actuator, and controlling the operating stroke of the electrostriction actuator in response to the discharging amount of the electric charge. CONSTITUTION:A means, which controls the discharging amount of electric charge that is supplied to an electrostriction actuator 5, is provided. the operating stroke of the electrostriction actuator 5 is controlled in response to the discharging amount of the electric charge. For example, when a thrystor 33 is turned ON and the electric charge in a capacitor 31 flows into the actuator 5, LC resonance is generated by a coil 32 and the actuator 5. The maximum voltage of 500V is applied to the actuator 5 in correspondence with the positive phase. Thereafter, the thrystor 33 is automatically turned OFF in correspondence with the negative phase of the LC resonance. Then, the electric charge of the actuator 5 is discharged to a capacitor 36 through a coil 34 and a thrystor 35. The voltage of the capacitor 38 can be adjusted through a resistor 37.

48. 发明专利

JPS61223230A FUEL INJECTION DEVICE FOR DIESEL ENGINE 失效
公开(公告)号：JPS61223230A
公开(公告)日：1986-10-03
申请号：JP6227085
申请日：1985-03-27
申请人： NIPPON SOKEN
发明人： SEKIGUCHI KIYONORI , ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , ABE MASAYUKI , IZAWA AKIHIRO
IPC分类号： F02D1/02 , F02B3/06 , F02D41/20 , F02D41/40 , F02M41/12
摘要： PURPOSE:To promote the reduction of engine noise, by providing a variable displacement chamber, which communicates with a pump chamber of the captioned device to introduce the pressure of fuel and changes the volume by extension and contraction of an electrostrictive actuator, and controlling the electrifying timing by the electrostrictive actuator. CONSTITUTION:A distributor type fuel injection pump 1 provides in its pump chamber 2 an injection rate controller 3 through a selector 40. This controller 3 is constituted by containing an electrostrictive actuator 31 and a piston 32 or the like in a casing 30. And the controller 3, sliding the piston 32 by extending and contracting action of the electrostrictive actuator 31 to control the volume of a variable displacement chamber 37, partitioned by the piston 32 and the casing 30, and controlling the volume of the pump chamber 2 communicating with said chamber 37 through communication holes 42, 43, etc., controls an injection rate. The electrostrictive actuator 31 is controlled by an ECU350 so that its electric charge is discharged in the timing, generating an electric charge by receiving a load due to the pressure of fuel, while the electric charge is supplemented in the timing receiving no load.

49. 发明专利

JPS61164044A FUEL INJECTION DEVICE OF INTERNAL-COMBUSTION ENGINE 失效
公开(公告)号：JPS61164044A
公开(公告)日：1986-07-24
申请号：JP415085
申请日：1985-01-16
申请人： NIPPON SOKEN
发明人： NATSUYAMA YUKIHIRO , ITO TOSHIHIKO , SAKAKIBARA YASUYUKI , YOSHINAGA TORU , ABE MASAYUKI
IPC分类号： F02M41/12 , F02D1/02 , F02D1/04
摘要： PURPOSE:To dispense with an intake port and others for exclusively taking in fuel by opening and closing through a needle valve a fuel path of a pressure changing chamber in a spool communicating to a pressure chamber pressurized by the operation of a plunger and connecting a spill path to a communicating path for conducting a fuel path to a low pressure chamber of a pump. CONSTITUTION:A distribution type injection pump 1 pressurizes fuel in a pressure chamber 50 by the operation of a plunger 11 synchronized with an engine and supplies fuel into an injection nozzle 2 through a cut-out groove 12, discharge port, delivery valve 60, etc. Then, a spool 120 formed in the interior with a pressure changing chamber 150 communicating to the pressure chamber 50 through a throttle 121 is disposed to move toward and away from the pressure chamber 50 so that a fuel path 113 provided in said chamber 150 is opened and closed by a needle valve 110. The fuel path 113 communicates to a low pressure chamber 15 of a pump through a communication path 114 to which a spill path for releasing fuel in the pressure chamber 50 communicates, while this spill path is formed between both said chamber and spool when the spool 120 is spaced from the pressure chamber 50.

50. 发明专利

JPS61138859A Electrostriction actuator and fule injector of diesel engine employing this actuator 失效
标题翻译：使用该执行器的柴油发动机的电动执行器和燃油喷射器
公开(公告)号：JPS61138859A
公开(公告)日：1986-06-26
申请号：JP26063984
申请日：1984-12-12
申请人： Nippon Soken Inc
发明人： SAKAKIBARA YASUYUKI , ITO TOSHIHIKO , ABE MASAYUKI , IZAWA AKIHIRO
IPC分类号： F02D41/40 , F02B3/06 , F02D1/02 , F02D1/12 , F02M41/12 , F02M45/06 , F02M51/00 , F02M51/04
CPC分类号： F02B3/06
摘要： PURPOSE: To acquire high expansibility of an electrostriction actuator by installing a condenser to accumulate charge, which is generated by the electrostriction actuator repeatedly receiving load, according to movements of a resonance circuit.
CONSTITUTION: Voltage is generated at an electrostrictive element when a load to compress to the axial direction is born on an electrostriction actuator 200. When the generated voltage grows to be a fixed level more than an injection-valve opeing pressure, the charge generated at the electrostriction actuator 200 moves to a condenser 300. Then during the period until the start of a pump's force feeding process, the charge stored at the condenser 300 moves to the electrostriction actuator 200. Thus, high expansibility of the electrostriction actuator can be acquired without high voltage electric source.
COPYRIGHT: (C)1986,JPO&Japio
摘要翻译：目的：根据谐振电路的运动，通过安装一个电容器来积累电荷，由电致伸缩执行器重复接收负载产生的电荷来获得电致伸缩致动器的高扩展性。构成：当在电致伸缩致动器200上产生沿轴向压缩的负载时，在电致伸缩元件处产生电压。当所产生的电压比喷射阀开启压力增加到固定水平时，在电致伸缩致动器200移动到冷凝器300.然后在泵的力输送过程开始之前的期间，存储在冷凝器300的电荷移动到电致伸缩致动器200.因此，可以获得电致伸缩致动器的高可扩展性而不会高电压电源。

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