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71. 发明专利

JP2003041975A Discharge preventing device for hydrocarbon in intake system for internal combustion engine 审中-公开
标题翻译：用于内燃机采油系统的排放预防装置
公开(公告)号：JP2003041975A
公开(公告)日：2003-02-13
申请号：JP2001233899
申请日：2001-08-01
申请人： Nippon Soken Inc , Toyoda Spinning & Weaving Co Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社日本自動車部品総合研究所 , 豊田紡織株式会社
发明人： TAKEYAMA MASAKI , KATO NAOYA , INUZUKA TAKANORI , NISHIMOTO TAKASHI , ODA KOICHI
IPC分类号： F02M35/024 , F02D9/02 , F02D11/10 , F02D41/00 , F02D41/04
CPC分类号： F02D41/00 , F02D9/02 , F02D41/042 , F02D41/047 , F02D2009/0225 , F02D2200/0414
摘要： PROBLEM TO BE SOLVED: To prevent adhesion of a throttle valve of an internal combustion engine by a polymer of HC and discharge of the HC to an exterior from an intake system.
SOLUTION: The HC contained in blow-by gas returned into an intake pipe 2 by a PCV passage 7 adheres to a circumferential gap of the throttle valve 3, it polymerizes in about 60 minutes wherein peripheral temperature of the valve 3 is raised by heat after operation stoppage, and it fixes the valve 3. Fuel adhered like an oil film to an inner face of an intake port 22 or a combustion chamber 11 vaporizes after the engine stoppage, it slowly diffuses to an upstream side inside the intake pipe 2, and it is discharged to the exterior. Consequently, the throttle valve 3 is opened after the engine stoppage to prevent fixing, and the valve 3 is closed when its temperature becomes lower than a polymerizing temperature to confine vapor of HC in a surge tank 21 or the like in a downstream side. Change of the temperature can be easily guessed from intake air temperature detected by, for example, an intake air temperature sensor 5.
COPYRIGHT: (C)2003,JPO
摘要翻译：要解决的问题：为了防止内燃机的节流阀由HC的聚合物粘附并将HC从进气系统排出到外部。解决方案：通过PCV通道7返回到进气管2中的窜气中的HC附着在节流阀3的周向间隙上，在约60分钟内聚合，其中阀3的周围温度通过加热而升高操作停止，并且固定阀3.燃料如油膜粘附到进气口22或燃烧室11的内表面在发动机停止之后蒸发，其缓慢地扩散到进气管2内部的上游侧，并且它被排出到外部。因此，在发动机停止后节流阀3打开以防止固定，并且当阀3的温度低于聚合温度以关闭阀3时，以将HC的蒸汽限制在下游侧的缓冲罐21等中。可以通过例如进气温度传感器5检测的进气温度容易地猜测温度的变化。

72. 发明专利

JP2002310037A FUEL SUPPLY DEVICE OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JP2002310037A
公开(公告)日：2002-10-23
申请号：JP2001111662
申请日：2001-04-10
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KONO TAKANAGA , KATO NAOYA , YAMAZAKI DAICHI
IPC分类号： F02D41/02 , F02D41/06 , F02D41/20 , F02M25/08 , F02M37/00 , F02M55/02 , F02M69/00 , F02N19/00 , F02N17/08
摘要： PROBLEM TO BE SOLVED: To quickly and excellently start a cylinder direct injection internal combustion engine by quickly increasing fuel pressure at starting time. SOLUTION: Fuel pressurized by a low pressure fuel pump 5 is further boosted by a high pressure fuel pump 3 driven by a crankshaft, and is sent into a fuel delivery pipe 2, and is injected into respective cylinders from a fuel injection valve 1. Since an engine speed is low at starting time, an increase in the fuel pressure is slow so that an excellent injection state cannot be obtained. Then, a variable displacement device 11 is arranged, and excellently evaporative fuel such as liquefying evaporated fuel is pressurized in an operation space 11e being a volume variable space, and is supplied only by one to two stroke quantity at starting time to rapidly increase the engine speed. A controllable object is used for an energizing means for compressing the space 11e regardless of operation of an engine. For example, a coil 11d for driving a diaphragm 11b by generating electromagnetic force is used.

73. 发明专利

JP2001065413A EVALUATION DEVICE OF EVAPORATED GAS TREATING INSTRUMENT 失效
公开(公告)号：JP2001065413A
公开(公告)日：2001-03-16
申请号：JP24259299
申请日：1999-08-30
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： ITAKURA HIDEAKI , OTA HISAYOSHI , KATO NAOYA , HYODO YOSHIHIKO
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To realize a device for evaluating the evaporated gas treating instrument such as a canister simply and controllably and supply the fuel vapor of a desired flow rate to the canister quickly and continuously without using an oil supply facility. SOLUTION: A semi-closed up fuel tank 1 for storing a gasoline G which is a vapor supply source and communicating with a canister at a vapor port 13 and a gas introducing line 51 for introducing N2 to the gasoline G in the fuel tank 1 are provided as a vapor generation means for generating a fuel vapor. When N2 is introduced to the gasoline G, the saturated vapor state in the fuel tank 1 is collapsed and the gasoline G is evaporated in order to return to the saturated state. Thereby, by taking out this volume expansion amount from the vapor port 13, the fuel vapor of a desired amount responding to N2 introduction amount can be supplied to the canister 3.

74. 发明专利

JP2000303916A CANISTER 失效
公开(公告)号：JP2000303916A
公开(公告)日：2000-10-31
申请号：JP11821499
申请日：1999-04-26
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： AMANO NORIYASU , KATO NAOYA , OTA HISAYOSHI , ITAKURA HIDEAKI , HYODO YOSHIHIKO
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To provide a canister having high adsorption and desorption performance. SOLUTION: In a canister 2, since a central part activated carbon layer 22 being the central part of an activated carbon layer is filled with activated carbon having thermal conductivity or heat capacity higher than that of a wall surface part activated carbon layer 21, heat generated at a central part is rapidly transferred to a wall surface part and heat is radiated from the wall surface part to the external part of the canister, whereby the temperature change margin of the central part is suppressed to a low value and the central part also obtains high performance. Further, by using activated carbon, having high heat capacity, in the central part, a similar effect is produced.

75. 发明专利

JP2000234573A FUEL TANK 失效
公开(公告)号：JP2000234573A
公开(公告)日：2000-08-29
申请号：JP3458699
申请日：1999-02-12
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： KATO NAOYA , OTA HISAYOSHI , ITAKURA HIDEAKI , AMANO NORIYASU , KOHAMA TOKIO , HYODO YOSHIHIKO , MURAI TOSHIMI
IPC分类号： B60K15/01 , F02M37/00
摘要： PROBLEM TO BE SOLVED: To miniaturize charcoal canistor and reduce a manufacturing cost by reducing an amount of fuel vapor flowing from a fuel tank to the charcoal canistor. SOLUTION: A sub-chamber 41 of small capacity is formed inside a fuel tank 1 by dividing the space by means of a partition plate 31. Fuel is supplied to the sub-chamber 41 trough an oil supply passage 11, while an inlet 5a of a vapor passage 5 connected to a canistor 13 is opened to an upper space 41a of the sub-chamber 41. Just supplied fuel of comparatively low temperature is stored in the sub-chamber 41. Gas containing fuel vapor introduced from a main chamber 42 to the canistor 13 through the vapor passage 5 passes through the sub-chamber 41 without fail. The fuel vapor is cooled and liquified in the sub-chamber 41. Only air containing no fuel vapor is made to flow to the canistor 13. The vapor passage 5 may be bent in the sub-chamber 41. Other cooling means and gas-liquid separation means may be arranged in the sub- chamber 41.

76. 发明专利

JPH11257040A HYDRAULIC CONTROL VALVE FOR LUBRICATING CIRCUIT OF INTERAL COMBUSTION CHAMBER 失效
公开(公告)号：JPH11257040A
公开(公告)日：1999-09-21
申请号：JP6720398
申请日：1998-03-17
申请人： NIPPON SOKEN
发明人： NAKASE TADAYOSHI , KATO NAOYA , KOHAMA TOKIO
IPC分类号： F01M1/20 , F01M1/06 , F01M1/16
摘要： PROBLEM TO BE SOLVED: To reduce pressure loss at an opening of a hydraulic control valve that is attached to a lubrication circuit and serves to maintain sufficient pressure of the lubricant supplied to the hydraulic drive unit in an operation state of an internal combustion chamber at a low lubricant pressure. SOLUTION: A hydraulic control valve 22 attached to the lubrication passage 18 leading to the portion requiring lubrication of the engine is composed of a fan-shaped valve body 25 pivotally rotatable around a valve axis 26 and a spring 34 that urges the valve axis 25 in the closing direction. The differential pressure generated between the front and rear portions of the valve body 25 increases the hydraulic pressure within another lubrication passage for the hydraulic drive unit separated from the lubrication passage 18 at a branch portion (not shown). As a result, the operation response of the hydraulic drive unit can be improved. When the valve body 25 is completely closed, minimum amount of the lubricant is allowed to flow through a bypass passage 25a leading to the portion requiring lubrication. As the valve body 25 is completely retracted into the space defined within the lubricant passage 18 at maximum opening degree, the pressure loss within the lubricant passage 18 becomes substantially zero.

77. 发明专利

JPH11153014A OIL AMOUNT CONTROL DEVICE IN LUBRICATING OIL CIRCUIT FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH11153014A
公开(公告)日：1999-06-08
申请号：JP32007097
申请日：1997-11-20
申请人： NIPPON SOKEN , TOYOTA MOTOR CORP
发明人： FUKUNAGA HIROYUKI , KATO NAOYA , KOHAMA TOKIO , SUZUKI YOSHIHISA
IPC分类号： F01M1/16 , F01L1/34 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To prevent deterioration of responsiveness caused by lowering of lubricating oil pressure when a variable valve timing mechanism controlled by lubricating oil pressure is operated, and the inferior lubrication of a part requiring lubrication. SOLUTION: Lubricating oil accumulator means such as an accumulator 72 is arranged in a branch high pressure passage 70 attached to the high pressure passage 66 of a lubricating oil circuit. A negative pressure introducing pipe 92 is connected to the intake passage of an engine. An accumulator chamber 80 is enlarged by intake negative pressure acting on a negative pressure chamber 90 during the engine is operated, and sucks and reserves a part of pressurized lubricating oil. When the engine is shifted from a low load to a high load, there is necessity that the valve timing of an intake valve is advanced at the same time, however, at this time, the accumulator chamber 80 is contracted by utilizing the lowering of the intake negative pressure of the negative pressure chamber 90. Hereby, lubricating oil stored in the accumulator chamber 80 is pushed out to the high pressure passage 66 so as to increase temporarily a lubricating oil amount, and a lowering of lubricating oil pressure can be prevented.

78. 发明专利

JPH119910A LUBRICATING HYDRAULIC CIRCUIT OF INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH119910A
公开(公告)日：1999-01-19
申请号：JP16772297
申请日：1997-06-24
申请人： NIPPON SOKEN
发明人： FUKUNAGA HIROYUKI , KATO NAOYA , YOSHINAGA TORU , KOHAMA TOKIO
IPC分类号： F01M1/16 , B01D27/08 , B01D35/02 , F01L1/34 , F02D13/02
摘要： PROBLEM TO BE SOLVED: To reduce manufacturing cost without necessitating both machining of the body part of an engine and additional parts to instal a control valve in relation to an hydraulic controlling device in the lubricating oil system of an internal combustion engine. SOLUTION: The casing 100 of an oil filter is fitted to the fitting part 102 of an engine block. An annular filter element 106 is fitted to the casing 100 by a cap 110. A control valve 122 is provided coaxially for the filter element 106. The control valve 122 controls distribution of lubricating oil flow rate for both a necessary part side of lubrication and a valve timing variable mechanism. The control valve 122 is formed into an orifice, by which flow rate on the necessary part side of lubrication is throttled to the necessary lowest limit at time of low oil pressure, and controls oiling for the valve timing variable mechanism so that oiling is preferentially performed.

79. 发明专利

JPH108932A BEARING DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
公开(公告)号：JPH108932A
公开(公告)日：1998-01-13
申请号：JP16758996
申请日：1996-06-27
申请人： NIPPON SOKEN
发明人： SAITO TORU , KATO NAOYA , YOSHINAGA TORU
IPC分类号： F01M1/06 , F16C3/14
摘要： PROBLEM TO BE SOLVED: To supply lubricating oil to a cap side while preventing an obstacle in load supporting action, by aiming at a fact that a lubricating condition of a bearing metal in a cap side is more severe rather than in a cylinder block side in a main bearing supporting a crankshaft of an internal combustion engine. SOLUTION: In addition to a main journal oil path 16 relating to a bearing metal 8 in a side of a cylinder block 7, in a bearing metal 9 in a side of a cap 13, an oil port 23 is provided, and pressurized lubricating oil is directly supplied from a main hole 15 through lubricating oil passages 21, 22. A position of the oil port 23 is represented by an angle α from a surface serving as the reference, and this position is substantially conformed to a start point (as viewed in a direction of rotation R of main shaft part) of a load supporting region in the bearing metal 9 supporting a large load in a combustion/expansion stroke, since a surface pressure is relatively small different from a lower part, high pressure lubricating oil is surely extended over a total area of a load supporting region in an internal surface of the bearing metal 9, and oil film shortage is prevented.

80. 发明专利

JPH09184454A CANISTER 失效
公开(公告)号：JPH09184454A
公开(公告)日：1997-07-15
申请号：JP35397995
申请日：1995-12-28
申请人： NIPPON SOKEN
发明人： ITAKURA HIDEAKI , KATO NAOYA , KOHAMA TOKIO , YOSHINAGA TORU , AZEGAMI KATSUO
IPC分类号： F02M25/08
摘要： PROBLEM TO BE SOLVED: To realize a canister capable of preventing blowby of vapor without increasing activated charcoal capacity and pressure loss in simple structure. SOLUTION: A fuel adsorption layer 5 is formed by filling activated charcoal C in a cylindrical container body 1 having a tank port 11 communicating with a fuel tank 2 on one end side and an atmospheric air port 13 communicating with atmospheric air on the other end side. An air layer 8 is provided between the fuel adsorption layer 5 and the atmospheric air port 13, a sheet type activated charcoal fiber is adhered on a wall of the container body 1 facing the air layer 8 and on a surface inside of the atmospheric air port 13, and vaport blowing by through the fuel adsorption layer 5 is adsorbed.

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