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61. 发明专利

JPH05223012A DEVICE FOR DETECTING REMAINING QUANTITY OF HYDROGEN 失效
公开(公告)号：JPH05223012A
公开(公告)日：1993-08-31
申请号：JP2272592
申请日：1992-02-07
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KANEHARA KENJI , ITO TOSHIHIKO , YAMADA JUN , KITO OSAMU
IPC分类号： F02M21/02 , F17C11/00 , F17C13/02
摘要： PURPOSE:To prevent unexpected fuel lack or the like by detecting the remaining quantity of hydrogen in a metal-hydride tank over the whole range of 0 to 100%. CONSTITUTION:With the use of a nature of metal hydride(MH) such that the lattice of crystal expands so as to increase the bulk of MH as MH stores hydrogen, the bulk of MH is detected so as to estimate the remaining quantity of hydrogen. For example, with the use of electrostatic capacitance type level sensor 4 having electrode plates whose front ends are embedded in granular metal hydride, the electrostatic capacitance which varies in accordance with a quantity of hydrogen existing between two electrodes 4a, 4b having their surfaces coated with an insulation film, is detected by a detecting circuit 5, and is then converted into a remaining hydrogen quantity by a computing circuit 6. Then the quantity is delivered to a display part 7.

62. 发明专利

JPH04188049A SMOKE-CONCENTRATION DETECTING APPARATUS FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH04188049A
公开(公告)日：1992-07-06
申请号：JP31580390
申请日：1990-11-22
申请人： TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： IKEDA SHINJI , YAMADA JUN , KANEHARA KENJI , KOSUDA TORU
IPC分类号： G01N21/59 , F01N3/02
摘要： PURPOSE:To ensure the scavenging of smoke sensor and to make it possible to detect the concentration of smoke in high accuracy by providing the new air intake port and the exhaust gas injecting port for a selector valve at a place where pressure is higher than a gas injecting port. CONSTITUTION:One end of a smoke-concentration detecting path 50 is connected to an air intake pipe 18 on the upstream side from the connecting part of an EGR path 24. A numeral 53 indicates a gas introducing port. A smoke sensor 52 is provided in the smoke-concentration detecting path 50. A fresh-air intake port 54-1 is connected to an air filter 56. An exhaust-gas introducing port 54-2 is connected to an exhaust pipe 23 through a path 58. The pressure of the fresh-air intake port 54-1 and the exhaust-gas introducing port 54-2 is higher than the pressure of the injecting port 53. Therefore, the atmosphere and the exhaust gas can be smoothly introduced into an air intake pipe 18.

63. 发明专利

JPH0427846A MEASURING APPARATUS FOR CONCENTRATION OF FINE PARTICLE 失效
公开(公告)号：JPH0427846A
公开(公告)日：1992-01-30
申请号：JP13251990
申请日：1990-05-24
申请人： NIPPON DENSO CO , TOYOTA MOTOR CORP , NIPPON SOKEN
发明人： YAMADA JUN , KOSUDA TORU , MATSUSHIRO RYUICHI , OZAKI MAKOTO , AOKI KEIJI , IKEDA SHINJI , KANEHARA KENJI
IPC分类号： G01N21/59
摘要： PURPOSE:To reduce the error of the output of a sensor, to accurately measure smoke, to continuously measure the concn. of the smoke at a transitional period as a Bosch smoke value and to measure the concn. of the smoke at the time of running by holding the temps. of a light emitting element and a photodetector to constant temp. by a thermostatic tank. CONSTITUTION:A small-size thermostatic tank 601 holds a light emitting element 4 and a photodetector 5 to constant temp. and the temps. of both of them are detected by a thermistor element to be held to constant tem. by feedback control. The error of the output of a sensor is + or -0.2% and a smoke measuring error can be suppressed to + or -2% or less in 2 S.B. and smoke can be accurately measured.

64. 发明专利

JP2001234829A FUEL INJECTION SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2001234829A
公开(公告)日：2001-08-31
申请号：JP2000047316
申请日：2000-02-24
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ANEZAKI YUKINOBU , YAMADA JUN , MIZOBUCHI TAKASHI , KANEHARA KENJI , HAYASHI KENJI
IPC分类号： F02B43/00 , F02D19/06 , F02D41/02 , F02D41/06 , F02D41/38 , F02M21/02 , F02M37/00 , F02M43/00 , F02M55/02
摘要： PROBLEM TO BE SOLVED: To provide a two-dimensional fuel injection system of easy constitution and control. SOLUTION: This system has a constitution provided with an LPG supply conduit 31L to supply liquid phase LPG to an injector 2, a gasoline supply conduit 31G to supply gasoline to the injector 2, valves 41, 42 to open/close the fuel communication of the LPG fuel supply conduit 31L and the gasoline supply conduit 31G to select supply fuel to the injector 2 from either the liquid phase LPG or gasoline, and an ECU 6 to control the valves 41, 42 in according with conditions of an internal combustion engine, and supply fuel pressure is roughly similarly set between liquid phase LPG and gasoline, so the injector 2 injects fuel in the same liquid phase and at the same pressure, thereby two sorts of fuel can be favorably injected by use of the single injector 2 without complicating the constitution or control f the injector 2.

65. 发明专利

JP2001227380A GAS ENGINE CONTROL DEVICE 失效
公开(公告)号：JP2001227380A
公开(公告)日：2001-08-24
申请号：JP2000039309
申请日：2000-02-17
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KUSANO SHIGEYUKI , NAKASE YOSHIHIRO , KANEHARA KENJI , YASUDA AKIO , MASUBUCHI MASAHIKO , TANIGUCHI SATOSHI
IPC分类号： F02D19/02 , F02D41/02 , F02D41/06
摘要： PROBLEM TO BE SOLVED: To stably and appropriately start a gas engine even under a low temperature. SOLUTION: This gas engine control device 2 is so constituted that a pressure sensor 22 detects the pressure of an intake pipe 18 in an interval till reaching complete explosion and, when the pressure is lower that a prescribed threshold, an ECU 21 corrects the opening of a throttle valve 19 to an opening side. The intake air quantity is increased when the insufficiency of the intake air quantity is detected by the decrease in the intake pipe pressure caused by the increase in the engine rotation speed, so that the startability is enhanced without feeding the excessive intake air.

66. 发明专利

JP2000161035A VARIABLE VALVE LIFT CONTROL DEVICE AT THE TIME OF STARTING 失效
公开(公告)号：JP2000161035A
公开(公告)日：2000-06-13
申请号：JP33563898
申请日：1998-11-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： MIZOBUCHI TAKASHI , YAMADA JUN , KANEHARA KENJI , KAWAMURA HIROSHI
IPC分类号： F01L1/08 , F01L1/24 , F01L13/00 , F02D13/02 , F02N19/00 , F02N17/08
摘要： PROBLEM TO BE SOLVED: To prevent further deterioration of startability of an internal combustion engine by increasing seating force of a valve for improving sealability, thereby suppressing escape of air-fuel mixture during compression process, and crushing foreign materials by the shock at the time of seating the valve even when the foreign material deposited in a combustion chamber of the internal combustion engine is peeled off and biten in an intake valve or an exhaust valve. SOLUTION: A clearance between a cam 1 and a tappet 3 is so increased that a buffering part 10 of the cam 1 is not abutted against the tappet 3 when a valve 10 is seated. Shock generated at the time of seating the valve 10 is thus increased. Seating force of the valve 10 is also increased for improving sealability. Foreign materials such as carbon can easily be crushed by the shock power at the time of seating. Neither escape of air-fuel mixture nor biting of foreign materials deteriorate startability of the internal combustion engine.

67. 发明专利

JPH10159632A FUEL INJECTION QUANTITY CONTROLLER FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH10159632A
公开(公告)日：1998-06-16
申请号：JP31510996
申请日：1996-11-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： MORISHIMA SHINGO , YAMADA JUN , KANEHARA KENJI , KOHAMA TOKIO , NASU MASAHIRO
IPC分类号： F02D41/14
摘要： PROBLEM TO BE SOLVED: To always suitably retain a fuel injection quantity to an internal combustion engine even any engine operation condition. SOLUTION: An injector 18 is arranged in the intake port 17 of an internal combustion engine 1, and an intake pressure sensor 8 is arranged in an intake pipe 2. A CPU 33 in an ECU 30, variably sets a rate that injection fuel is stuck on the wall surface of an intake pipe, which is the parameter of a fuel behavior model, the remaining rate of stuck fuel, a ratio that injection fuel is stuck on the wall surface in a cylinder and the remaining rate of stuck fuel, while corresponding to an absolute value of intake pressure PM. Then, the CPU 33 corrects a fuel injection quantity by using each parameter. In this case, when the absolute value of intake pressure PM is set on a positive side (such as when a vehicle is accelerated), the rate that injection fuel is stuck on the wall surface of the intake pipe and the remaining rate in the cylinder are increased, and also the remaining rate of fuel stuck to the intake pipe and the rate that fuel injection is stuck on the wall surface in the cylinder are decreased, and when the absolute value of intake pressure PM is set on a negative side (such as when the vehicle is decelerated), the rate of fuel injection stuck on the wall surface of the intake pipe and the remaining rate in the cylinder are decreased, and also the remaining rate of fuel stuck to the intake pipe and the rate of fuel injection stuck on the wall surface in the cylinder are increased.

68. 发明专利

JPH07279713A EXHAUST EMISSION CONTROL DEVICE 失效
公开(公告)号：JPH07279713A
公开(公告)日：1995-10-27
申请号：JP7206094
申请日：1994-04-11
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： YAMADA JUN , KANEHARA KENJI , ITO TOSHIHIKO , HIRATA TOSHIYUKI
IPC分类号： F02D45/00 , F01N3/20 , F01N3/24 , F02D41/04 , F02D41/14
摘要： PURPOSE:To prevent deterioration of NOx purification ratio by switching a target air-fuel ratio of air-fuel ratio feedback control between a rich side and around a theoretical air-fuel ratio with the final value of a catalyst temperature as a reference. CONSTITUTION:When effection of a feedback condition is confirmed by an ECU 8, an output signal from an air-fuel ratio sensor 4 is input while a catalyst temperature Tc is input from a temperature sensor 3. It is judged whether or not the catalyst temperature Tc is less than 500 deg.C. When the temperature is 500 deg.C or higher, combination of feedback constants is so set that control center of air-fuel ratio feedback control is a theoretical air-fuel ratio based on updated data of the present engine speed and a reference fuel injection amount. When the temperature is less than 500 deg.C, based on the similar data, the control senter of the air-fuel ratio feedback control is on a rich side compared to the theoretical air-fuel ratio. It is thus possible to prevent the air-fuel ratio from being inclined to a lean side during acceleration, and prevent deterioration of NOx purification ratio caused by CO poisoning of a Pd catalyst.

69. 发明专利

JPS6217352A LIQUID FUEL REGULATOR 失效
公开(公告)号：JPS6217352A
公开(公告)日：1987-01-26
申请号：JP15508485
申请日：1985-07-16
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KAWAI HISASHI , TOKURA NORIHITO , KANEHARA KENJI , ITO TAKAYOSHI , HASEGAWA KAZUYOSHI
IPC分类号： F02M21/06
摘要： PURPOSE:To accurately control an LPG internal-combustion engine, by providing a temperature-difference-type flow rate sensor between the primary and secondary pressure reduction chambers of the engine to measure the flow rate of fuel and compensate for the temperature of the fuel to determine the exact flow rate of the fuel. CONSTITUTION:Liquid fuel for an LPG internal-combustion engine is stored in an LPG container 1. The fuel is sent to a preheating chamber 21 provided with a pipe 26 to which cooling water or the like is supplied, so that the fuel is completely evaporated. The pressure of the evaporated fuel is lowered to a prescribed level in a primary pressure reduction chamber 22 and then lowered to nearly the atmospheric pressure in a secondary pressure reduction chamber 23 so that the fuel is supplied to the engine through a carburetor. A heater 3 is provided i a passage between the primary and the secondary pressure reduction chambers 22, 23 and connected in a bridge circuit to measure the flow rate of the evaporated fuel in terms of the change in the temperature thereof. Since the properties of the evaporated gas depend on the temperature thereof, thermosensitive resistors are provided upstream and downstream to the heater 3 to compensate for the temperature. The measured flow rate is entered into a controller 5 and indicated at 6.

70. 发明专利

JP2002317663A ENGINE WITH VARIABLE COMPRESSION RATIO 失效
公开(公告)号：JP2002317663A
公开(公告)日：2002-10-31
申请号：JP2001124900
申请日：2001-04-23
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： UCHIDA MITSUNORI , SATO OSAMU , KANEHARA KENJI , MORITA SHUJI
IPC分类号： F02B75/04 , F02D15/02 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide a variable compression ratio engine capable of varying the compression ratio effectively and smoothly and keeping the set ratio certainly. SOLUTION: A control rod 23 is pivoted at the connection part of a connecting rod 23 consisting of two portions so as to be bent in a shevron form, and the other end of control rod 23 is connected to a control disc 28 as a shaft swinging part by a control shaft 27. The arrangement includes a control shaft rotating means 32 such as a rack-and-pinion mechanism driven by a hydraulic cylinder and a control shaft retaining means 33 such as a braking mechanism or lock mechanism consisting of a lock pin or the like, and these means 32 and 33 can be engaged with the disc 28 in such a way as controlled independently.

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