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1. 发明授权

US4730592A Outer vent control device for a carburetor 失效
标题翻译：化油器外排气控制装置
公开(公告)号：US4730592A
公开(公告)日：1988-03-15
申请号：US843045
申请日：1986-03-24
申请人： Yasuji Uozumi , Hitoshi Yamabe , Sachito Fujimoto , Hideo Kobayashi
发明人： Yasuji Uozumi , Hitoshi Yamabe , Sachito Fujimoto , Hideo Kobayashi
IPC分类号： F02M5/08 , F02M33/02
CPC分类号： F02M5/08
摘要： An outer vent control device for use with a carburetor includes a valve housing adapted to be attached to the outer wall of a float chamber in thermally conductive relation, a first control valve disposed in the valve housing and openable when the engine stops its operation, and a second thermosensitive control valve disposed in the valve housing and closable when the temperature of the float chamber drops below a preset temperature. The second thermosensitive control valve includes a thermosensitive unit and a cover attached to a valve housing thereof in covering relation to the thermosensitive unit. The second thermosensitive control valve also has a valve seat member with a valve seat disposed in the valve housing and a valve body movably disposed in the valve housing and seatable on the valve seat. The valve body has an upper conical surface facing an inlet port remotely from the valve seat. The cover has a ventilation hole defined in the bottom thereof at a lowermost position thereon.
摘要翻译：一种与化油器一起使用的外部排气控制装置包括适于以导热关系附接到浮子室的外壁的阀壳体，设置在阀壳体中的第一控制阀，并且当发动机停止其操作时可开启; 第二热敏控制阀设置在阀壳体中并且当浮子室的温度下降到预定温度以下时闭合。第二热敏控制阀包括热敏单元和附接到其与其相对于热敏单元的阀壳体的盖。第二热敏控制阀还具有阀座构件，其具有设置在阀壳体中的阀座和可移动地设置在阀壳体中并可在阀座上定位的阀体。阀体具有面向远离阀座的入口的上锥形表面。该盖具有在其底部限定在其最下位置处的通气孔。

2. 发明授权

US4308842A Evaporative emission control system for an internal combustion engine 失效
标题翻译：内燃机蒸发排放控制系统
公开(公告)号：US4308842A
公开(公告)日：1982-01-05
申请号：US080780
申请日：1979-09-28
申请人： Masao Watanabe , Osamu Goto , Yasuji Uozumi
发明人： Masao Watanabe , Osamu Goto , Yasuji Uozumi
IPC分类号： F02M25/08 , F02M59/00
CPC分类号： F02M25/089 , F02D2200/0606 , F02M2025/0845
摘要： An evaporative emission control system for an internal combustion engine, in which fuel vapors generated in a fuel reservoir are stored in a fuel vapor storage canister when the engine is stopped so that the fuel vapors may be used when the engine is in operation. A purge control valve is disposed on a discharge port of the canister. The purge control valve is designed so that it is not opened unless a temperature of the engine exceeds a level above a predetermined threshold even when the engine is in operation. When the engine is operated at a low temperature, the stored fuel vapors in the canister are not released for stabilization in the air-fuel ratio of a mixture fed to the engine, and when the engine is operated at a high temperature, the stored fuel vapors are released into the engine to effectively consume the fuel.
摘要翻译：一种用于内燃机的蒸发排放控制系统，其中当发动机停止时，在燃料储存罐中产生的燃料蒸汽被储存在燃料蒸气存储罐中，使得当发动机运行时可以使用燃料蒸汽。清洗控制阀设置在罐的排出口上。排气控制阀被设计成使得它不被打开，除非发动机运转时发动机的温度超过预定阈值的水平。当发动机在低温下操作时，储存在罐中的燃料蒸汽不会释放以供给发动机的混合物的空燃比的稳定化，并且当发动机在高温下操作时，储存的燃料蒸汽被释放到发动机中以有效地消耗燃料。

3. 发明授权

US4932386A Fuel-vapor purge and air-fuel ratio control for automotive engine 失效
标题翻译：汽车发动机的燃油蒸汽吹扫和空燃比控制
公开(公告)号：US4932386A
公开(公告)日：1990-06-12
申请号：US891265
申请日：1986-07-28
申请人： Yasuji Uozumi , Shinichi Kitajima
发明人： Yasuji Uozumi , Shinichi Kitajima
IPC分类号： F02D41/00 , F02M25/08
CPC分类号： F02M25/08 , F02D41/0032 , F02D41/0042 , F02M2025/0845
摘要： A fuel-vapor purge and air-fuel ratio control system controls the amount of fuel vapor to be purged under an engine vacuum into a carburetor of an automotive engine from a charcoal canister and also controls the air-fuel ratio of an air-fuel mixture to be supplied to the carburetor. The fuel vapor is purged form the charcoal canister by applying the engine vacuum to the charcoal canister only when the air-fuel ratio is controlled. The applied engine vacuum may be regulated to control the amount of purged fuel vapor to change in proportion to the amount of air drawn by the engine, or the amount of purged fuel vapor may be increased to an upper limit when the air-fuel ratio is in a normal air-fuel ratio control region, and the amount of purged fuel vapor may be reduced to a lower limit when the air-fuel ratio is outside the normal air-fuel ratio control region. Alternatively, the controlling of the air-fuel ratio may forcibly be brought to a central value of an air-fuel ratio control range when purged fuel vapor is cut off of the amount of purged fuel vapor is abruptly reduced.
摘要翻译：燃料蒸气吹扫和空燃比控制系统控制在发动机真空下从汽车发动机排出的燃料蒸汽量从木炭罐中排放到汽车发动机的化油器中，并且还控制空气 - 燃料混合物的空燃比供应给化油器。只有当空燃比被控制时，通过将发动机真空施加到炭罐才能从炭罐清除燃料蒸气。可以调节所施加的发动机真空度，以控制净化的燃料蒸汽的量与发动机所吸入的空气量成比例地变化，或者当空燃比为高时，净化的燃料蒸气的量可以增加到上限在通常的空燃比控制区域中，当空燃比在正常空燃比控制区域之外时，净化燃料蒸气的量可以降低到下限。或者，当清除燃料蒸气被清除的燃料蒸汽的量急剧减少时，空燃比的控制可以被强制地变为空燃比控制范围的中心值。

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