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91. 发明专利

JP2504019B2 失效
公开(公告)号：JP2504019B2
公开(公告)日：1996-06-05
申请号：JP1593987
申请日：1987-01-28
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , KYOTA KATSUHIKO , OKADA TOORU , FUKUI TOYOAKI , OOMORI SHOGO
IPC分类号： F02D41/12 , F02B33/00 , F02D23/00 , F02D41/00 , F02D43/00

92. 发明专利

JPH0617644B2 失效
公开(公告)号：JPH0617644B2
公开(公告)日：1994-03-09
申请号：JP4102784
申请日：1984-03-02
申请人： MITSUBISHI MOTORS CORP
发明人： KUME SATOSHI , YOSHIDA MICHASU , KUME TAKEO , OOSHIMA HIROMI
IPC分类号： F01N3/02 , F01N3/023 , F02B3/06 , F02M25/06 , F02M25/07

93. 发明专利

JPH0543851B2 失效
公开(公告)号：JPH0543851B2
公开(公告)日：1993-07-02
申请号：JP21468983
申请日：1983-11-15
申请人： MITSUBISHI MOTORS CORP
发明人： KUME SATOSHI , YOSHIDA MICHASU , KUME TAKEO , OOSHIMA HIROMI
IPC分类号： F01N3/02 , F01N3/029 , F02B3/06 , F02B47/00 , F02D19/12 , F02M69/04

94. 发明专利

JPH0425652A VARIABLE COMPRESSION RATIO MECHANISM FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH0425652A
公开(公告)日：1992-01-29
申请号：JP12839190
申请日：1990-05-18
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , OKADA TORU , MATSUDA MASAHIKO
IPC分类号： F02D15/02 , F16H21/20
摘要： PURPOSE:To vary a compression ratio in succession by constituting a link means, connecting a crankpin and a fulcrum means, with a first link, a second link, and a rotator pivotally supported, free of relative rotation, in space between respective other ends of both these links. CONSTITUTION:A first link 13 of a link means 5 is connected to a crankpin 6a and a rotator 15, and a second link 14 to the rotator 15 and a shaft 9 of a fulcrum means 4 free of relative rotation, respectively. When a crankshaft 6 is rotated, the crankpin 6a revolves around a shaft center (O point) of the shaft 6, so a locus of the center of the crankpin 6a comes to a B circle. The link means 5 is displaced so as to bend these links 13 and 14 at the part of the rotator 15, transmitting the rotation of the shaft 9 to a first sprocket 3 without preventing any rotation of the crankshaft 6. In brief, the sprocket 3 is interlocked with a sprocket 16 via a chain 20, and a sprocket 17 solidly rotating together with this sprocket 16 with a second sprocket 10 via a chain 21, respectively.

95. 发明专利

JPH03124908A TROUBLE DETECTION DEVICE FOR CATALYTIC CONVERTER 失效
公开(公告)号：JPH03124908A
公开(公告)日：1991-05-28
申请号：JP26369389
申请日：1989-10-09
申请人： MITSUBISHI MOTORS CORP
发明人： SAKAI YASUHIRO , YOSHIDA MICHIYASU , KOGA KAZUO , KUME TAKEO
IPC分类号： F02B77/08 , F01N3/20 , F01N11/00
摘要： PURPOSE:To perform proper judgment whether a catalytic converter is normal or not by making comparative determination in exhaust gas the catalytic converter is within a predetermined range or not. CONSTITUTION:Pressure sensors 3 - 5 are arranged on upstream side of a catalytic converter 1, between the catalytic converter 1, and a muffler 2, and the downstream side of the muffler 2. A controller 6 determines whether the catalytic converter 1 is normal or not based on information from the pressure sensors 3 - 5. Namely, if a pressure drop through the catalytic converter 1 is too mall or too great, the controller determines that its cell portion has become hollow or has been clogged as a result of melting or breakage damage of the catalyst 1a so that the catalytic converter is not functioning properly. If the catalytic converter 1 is determined to be abnormal, an alarm lamp 7 is lit based on the signal from the controller 6. This makes it possible to properly determine constantly whether the catalytic converter 1 is functioning normally or abnormally.

96. 发明专利

JPH03124907A EXHAUST GAS CLEANING SYSTEM PROVIDED WITH DEVICE FOR JUDGING ACTIVE CONDITION OF CATALYST 失效
公开(公告)号：JPH03124907A
公开(公告)日：1991-05-28
申请号：JP26369289
申请日：1989-10-09
申请人： MITSUBISHI MOTORS CORP
发明人： SAKAI YASUHIRO , YOSHIDA MICHIYASU , KOGA KAZUO , KUME TAKEO
IPC分类号： F01N3/20 , F01N11/00 , F02D35/00
摘要： PURPOSE:To detect any trouble in a catalytic converter and quickly cope with the trouble by judging the active condition of the catalyst based on the detection signal from an oxygen sensor. CONSTITUTION:A catalytic converter 3 for processing exhaust gas is arranged in the middle of the exhaust passage of engine 1, and also a bypass passage 4 is arranged from the upstream to downstream side of the catalytic converter 3. An oxygen sensor 5 for judging the active condition of the catalyst is arranged in the part of the bypass passage 4 passing through the exhaust passage 2. A detection signal of the oxygen sensor 5 is now sent to an engine control unit 7. The engine control unit 7 judges the active condition of the catalyst of the catalytic converter 3 based on the detection signal for the oxygen concentration. If the active condition of the catalyst is judged by the engine control unit 7 to be abnormal while taking the temperature of the exhaust gas into account, a trouble warning lamp 16 is lit. Therefore, trouble or deterioration in the catalytic converter 3 can be securely detected.

97. 发明专利

JPH0331756A DEVICE FOR DIAGNOSING CLEANING EFFICIENCY OF CATALYST 失效
公开(公告)号：JPH0331756A
公开(公告)日：1991-02-12
申请号：JP16817489
申请日：1989-06-29
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , YOSHIDA MICHIYASU
IPC分类号： G01N27/409 , F01N3/20 , F01N11/00 , F02D41/14 , F02D45/00 , G01N27/00 , G01N27/26 , G01N31/00
摘要： PURPOSE:To obtain the device for diagnosing the cleaning efficiency of a catalyst which can exactly judge the deterioration of the catalyst by providing an air-fuel ratio sensor and issuing the information on the deterioration of the catalyst when the width of the change in the equiv. ratio with respect to the width of the change in the correction factor for feeding back of the air-fuel ratio exceeds a set value. CONSTITUTION:This device is constituted by providing the air-fuel ratio sensor 18 of a total area type on the outlet side of a scanning container for housing the ternary catalyst 9 and providing an electronic control unit ECU 1. A means (ECU 1) for calculating the correction factor for feeding back of the air-fuel ratio of this constitution takes the correction factor for feeding back of the air-fuel ratio for the purpose of feedback control therein and calculates the width of the change therein. A means (ECU 1) for calculating the width of the change in the equiv. ratio calculates the width of the change in the equiv. ratio based on the air-fuel ratio outputted by the sensor 18. A means (ECU 1) for deciding the deterioration of the catalyst issues information on the deterioration of the catalyst when the width of the change in the equiv. ratio with respect to the width of the change in the correction factor for feeding back of the air-fuel ratio exceeds the set value. The deterioration of the catalyst is quantitatively recognized in this way.

98. 发明专利

JPH0331510A HEATER CONTAINING CATALYST AND CONTROL THEREFOR 失效
公开(公告)号：JPH0331510A
公开(公告)日：1991-02-12
申请号：JP16451289
申请日：1989-06-27
申请人： MITSUBISHI MOTORS CORP
发明人： SAKAI YASUHIRO , YOSHIDA MICHIYASU , KOGA KAZUO , KUME TAKEO
IPC分类号： F01N3/20
摘要： PURPOSE:To speedily activate the whole catalyst by installing a heater containing catalyst in turning-up/down state directly on the upstream side of a catalytic converter and holding the heater in erection state up to the time when the catalyst for purifying exhaust gas is sufficiently activated and then switching the heater to a turned-down state after activation. CONSTITUTION:A catalytic converter 1 installed into the exhaust system of an automobile is formed by accommodating a catalyst 3 for purifying exhaust gas into a converter container 2. In this case, a heater 5 containing catalyst which can be switched between a horizontally turned-down state for the flow direction of the exhaust gas A and the nearly vertical erection state is arranged on the upstream side of the exhaust gas A in the container 2. In the heater 5, a nichrome wire 7 meandering into S-figure form is installed in circular frame form onto a body 6, and a catalytic metal 8 is held on the exposed part of the nichrome wire 7. The heater 5 is allowed to electrically conduct before the engine start, and when the temperature rises to the temperature for sufficiently activating the catalyst 8, the heater 5 is erected, and then, after the catalyst 3 is sufficiently activated, the heater 5 is turned down.

99. 发明专利

JPH02277942A AIR-FUEL RATIO CONTROL DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH02277942A
公开(公告)日：1990-11-14
申请号：JP9938589
申请日：1989-04-19
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO , KODAMA YOSHIAKI
IPC分类号： F02D41/14
摘要： PURPOSE:To judge the rich/lean state of the air-fuel ratio immediately after a start by setting a dead zone with the preset width near the reference voltage applied to output terminals of oxygen detecting means for the exhaust gas, and interrupting the feedback control when the terminal voltage is a value within the dead zone. CONSTITUTION:When the reference voltage is applied to output terminals of oxygen detecting means 40 and 42, the output voltage is changed across the reference voltage in response to the oxygen concentration, the output voltage is lower than the reference voltage when the air-fuel ratio is on the lean side, and it is higher than the reference voltage on the rich side. Activation can be judged by detecting that the output voltage is off the dead zone, if it is increased over the dead zone, the air-fuel ratio is lean-corrected, if it is decreased, the air-fuel ratio is rich-corrected. The output voltage is changed near the reference voltage, when the terminal voltage is equal to the ground level voltage, it can be judged that the output terminal side of the oxygen detecting means is short-circuited to the ground.

100. 发明专利

JPH01280650A AIR-FUEL RATIO DECISION DEVICE 失效
公开(公告)号：JPH01280650A
公开(公告)日：1989-11-10
申请号：JP10854888
申请日：1988-04-30
申请人： MITSUBISHI MOTORS CORP
发明人： KUME TAKEO
IPC分类号： F02D41/14 , F02D41/00
摘要： PURPOSE:To make it possible to make a decision on the activities of O2-sensors in an early stage by allowing the device to output activity-information of O2- sensors when senser output voltage is above (or below) a decision voltage being a specified value more (or less) than a reference voltage for deciding an air fuel ratio. CONSTITUTION:Operating condition detection means such as an air flow sensor 11, an intake air temperature sensor 12, a throttle sensor 14, etc. are provided, and first and second O2-sensors 17, 18 are installed on the upstream and downstream sides of a converter 9 in an exhaust passage 3, output signals from these sensors being inputted to ECU. ECU then compares O2-sensor output voltages with a reference voltage under the condition where the O2-sensors are activated, decides an air-fuel ratio, and controls a fuel injection valve 8 to feedback control the air fuel ratio based on the decided air fuel ratio. In this instance, the decision of activity of O2-sensors is performed as follows: when the sensor output voltages are above (or below) the detection voltage being a specified value more (or less) than the reference voltage, ECU decides that O2-sensors 17, 18 are activated.

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