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81. 发明专利

JPH0996213A EXHAUST GAS PURIFIER FOR INTERNAL COMBUSTION ENGINE PROVIDED WITH SUPERCHARGER 失效
公开(公告)号：JPH0996213A
公开(公告)日：1997-04-08
申请号：JP25612795
申请日：1995-10-03
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F01N3/20 , F02B37/00
摘要： PROBLEM TO BE SOLVED: To obtain excellent purifying action of catalyst even at the time of transfer to high load operation, in the exhaust gas purifier for an internal combustion engine provided with supercharger. SOLUTION: In an exhaust gas purifier concerned, a pair of exhaust gas turbocharger 10, 12 are provided, exhaust gas is forced to flow in one side exhaust gas turbocharger 10 at the time of low load operation, the exhaust gas is forced to flow in both exhaust gas turbochargers 10, 12, at the time of high load operation. And catalyst 20 is provided downstream from the other exhaust gas turbocharger 12 and a catalyst activating means 22 for activating the catalyst 20 before transferring to high load operation from low load operation is provided.

82. 发明专利

JPH0979043A EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH0979043A
公开(公告)日：1997-03-25
申请号：JP23379595
申请日：1995-09-12
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F01N3/20 , F02B37/00
摘要： PROBLEM TO BE SOLVED: To enable a proper a function without overrevolving each exhaust turbocharger. SOLUTION: In an exhaust emission control device for an internal combustion engine with supercharger equipped with a pair of exhaust turbochargers 10, 12, an exhaust inflow side of each exhaust turbocharger 10, 12 is connected to a common exhaust inflow passage 22, and an exhaust outflow side of each exhaust turbocharger 10, 12 is connected to respectively separate exhaust outflow passages 14, 16. A catalyst 18 is arranged in the one exhaust outflow passage 14, also a flow path resistance means 20, having flow path resistance equal to the catalyst 18, is provided in the other exhaust outflow passage 16.

83. 发明专利

JPH06117302A ROTATIONAL SPEED CONTROL DEVICE FOR INTERNAL COMBUTION ENGINE LOADED ON CAR 失效
公开(公告)号：JPH06117302A
公开(公告)日：1994-04-26
申请号：JP26392292
申请日：1992-10-01
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B61/06 , F02D29/02 , F02D31/00 , F02D41/10 , F02D41/12 , F02D41/22 , F16F15/12 , F16F15/134
摘要： PURPOSE:To prevent an output/shaft from moving into the maximum displacement tolerance position of an internal combustion engine at the time of fuel cut control, to restrict engine speed to be affected by resiliency stored in a torsion displacement tolerance member and to reduce fluctuation of engine speed at the time of fuel cut control. CONSTITUTION:An ECU 23 for making driving control of fuel injection valves 8A to 8D in response to an engine speed given by an engine speed sensor 20 is provided. When the engine speed exceeds the criterion of fuel injection stop, CPU of ECU 23 stops fuel injection and when the engine speed drops beyond the criterion of injection resumption, fuel injection is started again. A flexible tortion damper is interposed between a driving wheel 33 and the output shaft of an engine 1, displacement of output shaft in the counter-rotational direction at the time of stopping fuel injection is allowed and an displacement of output shaft in the rotational direction at the time of restarting of fuel injection is allowed. When the number of engine rotation decreased and becomes lower than the criterion of fuel injection stop, fuel injection is restarted and stopped intermittently so that reaction power accumulated in the tortion damper may be reduced.

84. 发明专利

JPH05214946A CONTROL DEVICE FOR ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH05214946A
公开(公告)日：1993-08-24
申请号：JP4777292
申请日：1992-02-05
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F02B37/00 , F02B37/16
摘要： PURPOSE:To suppress the fluctuation of the supercharged pressure regardless of acceleration/deceleration operations and prevent the smoldering of a plug by detecting the temperature of an engine, and forcefully switching the operation to the supercharged operation by both main and auxiliary turbo-chargers when the temperature of the engine based on the detection result is low. CONSTITUTION:In a high intake air quantity area, both an exhaust selector valve 17 and an intake selector valve 18 are closed by actuators 16, 11, and the supercharged operation by both main and auxiliary turbo-chargers is performed. In a low intake air quantity area, both the exhaust selector valve 17 and intake selector valve 18 are closed, and the supercharged operation by only the main turbo-charger is performed. The temperature of an engine is detected by a temperature detecting means 71. When the temperature of the engine based on the temperature detection signal is low, the operation is forcefully switched to the supercharged operation by both the main and auxiliary turbo-chargers by a switching means 72. The fluctuation of the supercharged pressure is suppressed low in acceleration/deceleration operations, and the smoldering of a plug due to the generation of carbon is prevented.

85. 发明专利

JPH0539729A SUPERCHARGING PRESSURE CONTROLLER FOR ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH0539729A
公开(公告)日：1993-02-19
申请号：JP21652291
申请日：1991-08-02
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/007 , F02B37/00 , F02B37/12 , F02B37/18
摘要： PURPOSE:To prevent a decrease in supercharging pressure caused by an insufficient bleeding quantity at the initial stage of supercharging of an actuator for controlling a supercharging pressure in a high land. CONSTITUTION:In a supercharging pressure controller for an engine with a supercharger, a supercharging air introduced into a diaphragm chamber disposed in a diaphragm actuator 42 is bled to the exterior through a solenoid (fifth solenoid) 32 which is duty-controlled so that an opening degree of a supercharging pressure control valve 41 for bypassing a turbine of the supercharger is regulated, thus controlling a supercharging pressure. An initial duty value of the solenoid 32 for bleeding the supercharging air introduced into the diaphragm actuator 42 is corrected by an initial duty value corrector 61 in such a manner as to become higher as an atmospheric pressure detected by an atmospheric pressure detector 60 becomes lower.

86. 发明专利

JPH0510216A EVAPORATED FUEL CONTROL DEVICE OF ENGINE WITH SUPERCHARGER 失效
公开(公告)号：JPH0510216A
公开(公告)日：1993-01-19
申请号：JP18590091
申请日：1991-07-01
申请人： TOYOTA MOTOR CORP
发明人： YOSHIOKA MAMORU , NAKADA KUNIHIKO
IPC分类号： F02B37/00 , F02M25/08
摘要： PURPOSE:To prevent drop of the efficiency of a turbo-charger and provide controllability for the purging rate of flow of the evaporated fuel approx. in proportion to the sucked air amount. CONSTITUTION:In the low suction air amount range, a suction air introducing passage 130 is closed and the sanction air is introduced to a canister 100 via No.2 purging passage 65, and thereby the evaporated fuel adsorbed to an adsorbent 102 in the canister 100 is purged off to the downstream of a throttle valve 4 via No.1 purging passage 64. In the high suction air amount range. the suction air from downstream an air flow meter 24 is introduced to the canister 100 via the suction air introducing passage 130 by means of opening the same, and thereby the evaporated fuel adsorbed by the adsorbent 102 in the canister 100 is purged off via the No.2 purging passage 65 to the upstream of a compressor 7b of a main turbo-charger 7.

87. 发明专利

JPH04358757A EVAPORATED FUEL CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JPH04358757A
公开(公告)日：1992-12-11
申请号：JP3532291
申请日：1991-02-05
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU , SUGIYAMA TOSHIHISA , KANTO YUJI
IPC分类号： F02M25/08
摘要： PURPOSE:To prevent the outflow of fuel from a canister by enabling purging of an evaporated fuel even a purging solenoid valve is failed in its fully closed condition. CONSTITUTION:This device is provided with a purging passage 64; having a purging solenoid valve 70 and a control valve 69 opened by introducing intake pipe negative pressure, and a bypass purging passage 72; introducing an evaporated fuel from a canister 63 into a position which becomes the upper stream of a throttle valve body 4a when a throttle valve 4 is fully closed and the down stream of the throttle valve body 4a when opened.

88. 发明专利

JPH04358755A EVAPORATED FUEL CONTROL DEVICE FOR ENGINE 失效
公开(公告)号：JPH04358755A
公开(公告)日：1992-12-11
申请号：JP4069591
申请日：1991-02-14
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU , SUGIYAMA TOSHIHISA , KANTO YUJI
IPC分类号： F02M25/08
摘要： PURPOSE:To accurately control the purge quantity of an evaporated fuel in a low intake-air-quantity region by controlling a purging solenoid valve in a stable action region even in the low intake-air-quantity region near to an idling condition. CONSTITUTION:A bypass purging passage 72, bypassing a control valve 69, is connected to a purging passage 64 in which a purging solenoid valve 70 and the control valve 69 located at its upper stream are arranged in series. The cross section of the bypass purging passage 72 is made a small cross section, corresponding to the purging flow rate of an evaporated fuel according to an intake air quantity near to an idling condition, and the duty ratio of the purging solenoid valve 70 in a low intake-air-quantity region is made large.

89. 发明专利

JPH04358754A EVAPORATED FUEL CONTROL DEVICE FOR SUPERCHARGER-ATTACHED ENGINE 失效
公开(公告)号：JPH04358754A
公开(公告)日：1992-12-11
申请号：JP3142391
申请日：1991-02-01
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU , SUGIYAMA TOSHIHISA , KANTO YUJI
IPC分类号： F02M25/08
摘要： PURPOSE:To improve the durability and reliability of a control valve repeatably applying negative and positive pressure to a diaphragm chamber. CONSTITUTION:A diaphragm chamber 69b is made to communicate with the atmosphere via a throttle valve 84 by providing a check valve 82, preventing the flow of intake air going toward the diaphragm chamber 69b from the down stream of a throttle valve 4, in a control pressure passage 81 leading intake pipe negative pressure to the diaphragm chamber 69b of a control valve 69.

90. 发明专利

JPH04321720A ENGINE PROVIDED WITH SUPERCHARGER 失效
公开(公告)号：JPH04321720A
公开(公告)日：1992-11-11
申请号：JP11791691
申请日：1991-04-23
申请人： TOYOTA MOTOR CORP
发明人： NAKADA KUNIHIKO , YOSHIOKA MAMORU
IPC分类号： F02B37/007 , F02B37/00 , F02B37/12 , F02B37/18
摘要： PURPOSE:To dissolve unbalance of work volume between a main turbocharger and a subsidiary turbocharger due to pressure loss of passages, and sufficiently exhibit essential performance of a supercharged engine. CONSTITUTION:An intake air passage 14a on the lower stream of the compressor 7b of a main turbocharger 7 and an intake air passage 14b on the lower stream of the compressor 8b of a subsidiary turbocharge 8 are met at a confluent part 14c, and the flow passage sectional area S2 of the intake air passage 14b of which distance from the confluent part 14c to the compressor 8b is longer is formed larger than the flow passage sectional area S1 of the intake air passage 14a of which distance from the confluent part 14c to the compressor 7b is shorter. Further, the flow passage sectional area S3 of an exhaust passage 20a on the lower stream of the turbine of the main turbocharger 7 provided with a waste gate valve 31 is formed larger than the flow passage sectional area S4 of an exhaust passage 20b on the subsidiary turbocharger 8 side.

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